Scorpio Tankers (STNG) 20-F 20 Mar 19 2018 FY Annual report (foreign) Financial data

Document and Entity Information

Document and Entity Information	12 Months Ended
	Dec. 31, 2018shares
Document and Entity Information [Abstract]
Entity Registrant Name	Scorpio Tankers Inc.
Entity Central Index Key	0001483934
Document Type	20-F
Amendment Flag	false
Document Period End Date	Dec. 31, 2018
Current Fiscal Year End Date	--12-31
Document Fiscal Year Focus	2018
Document Fiscal Period Focus	FY
Entity Filer Category	Large Accelerated Filer
Entity Well-known Seasoned Issuer	Yes
Entity Current Reporting Status	Yes
Entity Emerging Growth Company	false
Entity Shell Company	false
Entity Common Stock, Shares Outstanding	51,397,562

Consolidated Balance Sheets

Consolidated Balance Sheets - USD ($) $ in Thousands	Dec. 31, 2018	Dec. 31, 2017
Current assets
Cash and cash equivalents	$ 593,652	$ 186,462
Accounts receivable	69,718	65,458
Prepaid expenses and other current assets	15,671	17,720
Inventories	8,300	9,713
Total current assets	687,341	279,353
Non-current assets
Vessels and drydock	3,997,789	4,090,094
Vessels under construction	0	55,376
Other assets	75,210	50,684
Goodwill	11,539	11,482
Restricted cash	12,285	11,387
Total non-current assets	4,096,823	4,219,023
Total assets	4,784,164	4,498,376
Current liabilities
Current portion of long-term debt	297,934	113,036
Finance lease liability	114,429	50,146
Accounts payable	11,865	13,044
Accrued expenses	22,972	32,838
Total current liabilities	447,200	209,064
Non-current liabilities
Long-term debt	1,192,000	1,937,018
Finance lease liability	1,305,952	666,993
Total non-current liabilities	2,497,952	2,604,011
Total liabilities	2,945,152	2,813,075
Shareholders’ equity
Common stock, $0.01 par value per share; 150,000,000 and 40,000,000 shares authorized; 51,397,562 and 32,650,755 issued and outstanding shares as of December 31, 2018 and December 31, 2017, respectively.	5,776	3,766
Additional paid-in capital	2,648,599	2,283,591
Treasury shares	(467,056)	(443,816)
Accumulated deficit	(348,307)	(158,240)
Total shareholders’ equity	1,839,012	1,685,301
Total liabilities and shareholders’ equity	$ 4,784,164	$ 4,498,376

Consolidated Balance Sheets (Pa

Consolidated Balance Sheets (Parenthetical) - $ / shares	Dec. 31, 2018	Dec. 31, 2017
Disclosure of classes of share capital [line items]
Common stock, par value (in dollars per share)	$ 0.01
Common stock [Member]
Disclosure of classes of share capital [line items]
Common stock, par value (in dollars per share)	$ 0.01	$ 0.01
Common stock, shares authorized (in shares)	150,000,000	40,000,000
Common stock, shares issued (in shares)	51,397,562	32,650,755
Common stock, shares outstanding (in shares)	51,397,562	32,650,755

Consolidated Statements of Inco

Consolidated Statements of Income or Loss - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Revenue
Vessel revenue	$ 585,047	$ 512,732	$ 522,747
Operating expenses
Vessel operating costs	(280,460)	(231,227)	(187,120)
Voyage expenses	(5,146)	(7,733)	(1,578)
Charterhire	(59,632)	(75,750)	(78,862)
Depreciation	(176,723)	(141,418)	(121,461)
General and administrative expenses	(52,272)	(47,511)	(54,899)
Loss on sales of vessels, net	0	(23,345)	(2,078)
Merger transaction related costs	(272)	(36,114)	0
Bargain purchase gain	0	5,417	0
Total operating expenses	(574,505)	(557,681)	(445,998)
Operating income / (loss)	10,542	(44,949)	76,749
Other (expense) and income, net
Financial expenses	(186,628)	(116,240)	(104,048)
Loss on exchange of convertible notes	(17,838)	0	0
Realized loss on derivative financial instruments	0	(116)	0
Unrealized gain on derivative financial instruments	0	0	1,371
Financial income	4,458	1,538	1,213
Other expenses, net	(605)	1,527	(188)
Total other expense, net	(200,613)	(113,291)	(101,652)
Net loss	(190,071)	(158,240)	(24,903)
Attributable to:
Equity holders of the parent	$ (190,071)	$ (158,240)	$ (24,903)
Loss per share
Basic (in USD per share)	$ (5.46)	$ (7.35)	$ (1.55)
Diluted (in USD per share)	$ (5.46)	$ (7.35)	$ (1.55)
Basic weighted average shares outstanding (in shares)	34,824,311	21,533,340	16,111,865
Diluted weighted average shares outstanding (in shares)	34,824,311	21,533,340	16,111,865

Consolidated Statements of Comp

Consolidated Statements of Comprehensive Income or Loss - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Statement of comprehensive income [abstract]
Net loss	$ (190,071)	$ (158,240)	$ (24,903)
Other comprehensive income	0	0	0
Total comprehensive loss	(190,071)	(158,240)	(24,903)
Attributable to:
Equity holders of the parent	$ (190,071)	$ (158,240)	$ (24,903)

Consolidated Statements of Chan

Consolidated Statements of Changes in Shareholders' Equity $ in Thousands		USD ($)	Share capitalUSD ($)shares	Additional paid-in capitalUSD ($)	Treasury sharesUSD ($)	(Accumulated deficit) / retained earningsUSD ($)
Beginning balance at Dec. 31, 2015		$ 1,413,885	$ 2,224	$ 1,729,314	$ (427,311)	$ 109,658
Beginning balance (in shares) at Dec. 31, 2015 | shares	[1]		17,533,540
Net loss		(24,903)				(24,903)
Issuance of restricted stock, net of forfeitures		0	$ 23	(23)
Issuance of restricted stock, net of forfeitures (in shares) | shares	[1]		225,112
Amortization of restricted stock, net of forfeitures		30,207		30,207
Dividends paid	[2]	(86,923)		(2,168)		(84,755)
Purchase of treasury shares		(16,505)			(16,505)
Purchase of treasury shares (in shares) | shares	[1]		(295,676)
Equity issuance costs		(24)		(24)
Equity component of issuance of Senior Convertible Notes due 2022		(537)		(537)
Ending balance at Dec. 31, 2016		1,315,200	$ 2,247	1,756,769	(443,816)	0
Ending balance (in shares) at Dec. 31, 2016 | shares	[1]		17,462,976
Net loss		(158,240)				(158,240)
Net proceeds from follow on offerings of common stock		288,444	$ 845	287,599
Net proceeds from follow on offerings (in shares) | shares	[1]		8,450,000
Issuance of restricted stock, net of forfeitures		0	$ 109	(109)
Issuance of restricted stock, net of forfeitures (in shares) | shares	[1]		1,087,780
Amortization of restricted stock, net of forfeitures		22,385		22,385
Dividends paid	[2]	(9,561)		(9,561)
Shares issued as consideration for merger with NPTI		221,100	$ 550	220,550
Shares issued as consideration for merger with NPTI (in shares) | shares	[1]		5,499,999
Warrants exercised relating to merger with NPTI		5,973	$ 15	5,958
Warrants exercised relating to merger with NPTI (in shares) | shares	[1]		150,000
Ending balance at Dec. 31, 2017		1,685,301	$ 3,766	2,283,591	(443,816)	(158,240)
Ending balance (in shares) at Dec. 31, 2017 | shares	[1]		32,650,755
Net loss		(190,071)				(190,071)
Net proceeds from follow on offerings of common stock		319,632	$ 1,822	317,810
Net proceeds from follow on offerings (in shares) | shares	[1]		18,216,216
Issuance of restricted stock, net of forfeitures		0	$ 188	(188)
Issuance of restricted stock, net of forfeitures (in shares) | shares	[1]		1,881,826
Amortization of restricted stock, net of forfeitures		25,547		25,547
Dividends paid	[2]	(15,127)		(15,127)
Purchase of treasury shares		(23,240)			(23,240)
Purchase of treasury shares (in shares) | shares	[1]		(1,351,235)
Equity component of issuance of Senior Convertible Notes due 2022		36,966		36,966
Ending balance at Dec. 31, 2018		$ 1,839,012	$ 5,776	$ 2,648,599	$ (467,056)	$ (348,307)
Ending balance (in shares) at Dec. 31, 2018 | shares	[1]		51,397,562
[1]	On January 18, 2019, the Company effected a one-for-ten reverse stock split. The Company's shareholders approved the reverse stock split and change in authorized common shares at the Company's special meeting of shareholders held on January 15, 2019. Pursuant to this reverse stock split, the total number of authorized common shares was reduced to 150.0 million shares.
[2]	The Company's policy is to distribute dividends from available retained earnings first and then from additional paid in capital.

Consolidated Statements of Ch_2

Consolidated Statements of Changes in Shareholders' Equity (Parenthetical)	Jan. 18, 2019shares	Dec. 13, 2018$ / shares	Sep. 27, 2018$ / shares	Jun. 28, 2018$ / shares	Mar. 27, 2018$ / shares	Dec. 28, 2017$ / shares	Sep. 29, 2017$ / shares	Jun. 14, 2017$ / shares	Mar. 30, 2017$ / shares	Dec. 22, 2016$ / shares	Sep. 29, 2016$ / shares	Jun. 24, 2016$ / shares	Mar. 30, 2016$ / shares	Dec. 31, 2018$ / sharesshares	Dec. 31, 2017$ / sharesshares	Dec. 31, 2016$ / shares	May 30, 2017$ / shares
Statement of changes in equity [abstract]
Dividends paid per share (in USD per share)		$ 0.1	$ 0.1	$ 0.1	$ 0.1	$ 0.1	$ 0.1	$ 0.1	$ 0.1	$ 1.25	$ 1.25	$ 1.25	$ 1.25	$ 0.40	$ 0.40	$ 5
NPTI [Member]
Price per share (in USD per share)															$ 40.20
Common stock [Member]
Number of shares authorized (in shares) | shares														150,000,000	40,000,000
Common stock [Member] | NPTI [Member]
Price per share (in USD per share)																	$ 40
Major ordinary share transactions [Member] | Common stock [Member]
Number of shares authorized (in shares) | shares	150,000,000
Reverse stock split of common shares	0.10

Consolidated Cash Flow Statemen

Consolidated Cash Flow Statements - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Operating activities
Net loss	$ (190,071)	$ (158,240)	$ (24,903)
Loss from sales of vessels	0	23,345	2,078
Depreciation	176,723	141,418	121,461
Amortization of restricted stock	25,547	22,385	30,207
Amortization of deferred financing fees	10,541	13,381	14,149
Write-off of deferred financing fees	13,212	2,467	14,479
Bargain purchase gain	0	(5,417)	0
Share based transaction costs	0	5,973	0
Unrealized gain on derivative financial instruments	0	0	(1,371)
Amortization of acquired time charter contracts	0	0	65
Accretion of Convertible Notes	13,225	12,211	11,562
Accretion of fair market measurement on debt assumed from merger with NPTI	3,779	1,478	0
Loss on exchange of Convertible Notes	17,838	0	0
Gain on repurchase of Convertible Notes	0	0	(994)
Cash flows from (used) in operating activities before changes in assets and liabilities	70,794	59,001	166,733
Changes in assets and liabilities:
Decrease / (increase) in inventories	1,535	(1,319)	564
(Increase) / decrease in accounts receivable	(4,298)	(1,478)	26,688
Decrease / (Increase) in prepaid expenses and other current assets	2,227	12,219	(5,546)
(Increase) / decrease in other assets	(1,226)	(22,651)	2,045
(Decrease) / increase in accounts payable	(1,382)	3,694	(2,487)
Decrease in accrued expenses	(9,860)	(7,665)	(9,486)
Total changes in assets and liabilities	(13,004)	(17,200)	11,778
Net cash inflow from operating activities	57,790	41,801	178,511
Investing activities
Acquisition of vessels and payments for vessels under construction	(26,057)	(258,311)	(126,842)
Proceeds from disposal of vessels	0	127,372	158,175
Net cash paid for the merger with NPTI	0	(23,062)	0
Drydock, scrubber and BWTS payments (owned and bareboat-in vessels)	(26,680)	(5,922)	0
Net cash (outflow) / inflow from investing activities	(52,737)	(159,923)	31,333
Financing activities
Debt repayments	(865,594)	(546,296)	(753,431)
Issuance of debt	1,007,298	525,642	565,028
Debt issuance costs	(23,056)	(11,758)	(10,679)
Refund of debt issuance costs due to early debt repayment	2,826	0	0
Increase in restricted cash	(897)	(2,279)	0
Repayment of Convertible Notes	0	0	(8,393)
Gross proceeds from issuance of common stock	337,000	303,500	0
Equity issuance costs	(17,073)	(15,056)	(24)
Dividends paid	(15,127)	(9,561)	(86,923)
Redemption of NPTI Redeemable Preferred Shares	0	(39,495)	0
Repurchase of common stock	(23,240)	0	(16,505)
Net cash inflow / (outflow) from financing activities	402,137	204,697	(310,927)
Increase / (decrease) in cash and cash equivalents	407,190	86,575	(101,083)
Cash and cash equivalents at January 1,	186,462	99,887	200,970
Cash and cash equivalents at December 31,	593,652	186,462	99,887
Supplemental information:
Interest paid (which includes $0.2 million, $4.2 million and $6.3 million of interest capitalized during the years ended December 31, 2018, 2017 and 2016, respectively)	155,304	92,034	69,008
Interest capitalized	$ 200	$ 4,200	$ 6,300

Consolidated Cash Flow Statem_2

Consolidated Cash Flow Statements (Parenthetical) shares in Millions, $ in Millions	1 Months Ended			3 Months Ended
	May 31, 2016USD ($)	Mar. 31, 2016USD ($)	Jun. 30, 2014USD ($)	Jul. 31, 2018USD ($)	Sep. 30, 2017vesselshares	May 31, 2017vessel
Convertible Notes due 2019 [Member]
Consolidated Cash Flow Statements [Line Items]
Repayments	$ 4.2	$ 4.2		$ 203.5
Aggregate principal amount notes issued			$ 349
Convertible Notes due 2022 [Member]
Consolidated Cash Flow Statements [Line Items]
Aggregate principal amount notes issued				$ 203.5
NPTI [Member]
Consolidated Cash Flow Statements [Line Items]
Common stock, shares issued (in shares) | shares					5.5
LR1 [Member] | NPTI [Member]
Consolidated Cash Flow Statements [Line Items]
Number of vessels acquired | vessel					12	12
LR2 [Member] | NPTI [Member]
Consolidated Cash Flow Statements [Line Items]
Number of vessels acquired | vessel					15	15

General information and signifi

General information and significant accounting policies	12 Months Ended
	Dec. 31, 2018
Corporate Information And Statement Of IFRS Compliance [Abstract]
General information and significant accounting policies	General information and significant accounting policies Company Scorpio Tankers Inc. and its subsidiaries (together “we”, “our” or the “Company”) are engaged in the seaborne transportation of refined petroleum products in the international shipping markets. Scorpio Tankers Inc. was incorporated in the Republic of the Marshall Islands on July 1, 2009. On April 6, 2010, we closed on our initial public offering, and the common stock currently trades on the New York Stock Exchange under the symbol STNG. Our fleet as of December 31, 2018 consisted of 109 owned or finance leased product tankers ( 14 Handymax, 45 MR, 12 LR1 and 38 LR2) and 11 time or bareboat chartered-in product tankers ( seven Handymax and four MR). Our vessels are commercially managed by Scorpio Commercial Management S.A.M., or SCM, which is majority owned by the Lolli-Ghetti family of which Mr. Emanuele Lauro, our Chairman and Chief Executive Officer, and Mr. Filippo Lauro, our Vice President, are members. SCM’s services include securing employment, in pools, in the spot market, and on time charters. Our vessels are technically managed by Scorpio Ship Management S.A.M., or SSM, which is majority owned by the Lolli-Ghetti family. SSM facilitates vessel support such as crew, provisions, deck and engine stores, insurance, maintenance and repairs, and other services necessary to operate the vessels such as drydocks and vetting/inspection under a technical management agreement. We also have an administrative services agreement with Scorpio Services Holding Limited, or SSH, which is majority owned by the Lolli-Ghetti family. The administrative services provided under this agreement primarily include accounting, legal compliance, financial, information technology services, and the provision of administrative staff and office space, which are contracted to subsidiaries of SSH. We pay our managers fees for these services and reimburse them for direct or indirect expenses that they incur in providing these services. Basis of accounting The consolidated financial statements incorporate the financial statements of Scorpio Tankers Inc. and its subsidiaries. The consolidated financial statements have been presented in United States dollars, or USD or $, which is the functional currency of Scorpio Tankers Inc. and all its subsidiaries, and have been authorized for issue by the Board of Directors on March 15, 2019 . The consolidated financial statements have been prepared in accordance with International Financial Reporting Standards, or IFRS, as issued by the International Accounting Standards Board and on a historical cost basis, except for the revaluation of certain financial instruments. All inter-company transactions, balances, income and expenses were eliminated on consolidation. Reverse stock split On January 18, 2019, the Company effected a one-for-ten reverse stock split. All share and per share information has been retroactively adjusted to reflect the reverse stock split. The par value was not adjusted as a result of the reverse stock split. Going concern The financial statements have been prepared in accordance with the going concern basis of accounting as described further in the “Liquidity risk” section of Note 24. Significant Accounting Policies The following is a discussion of our significant accounting policies that were in effect during the years ended December 31, 2018 , 2017 and 2016 . Revenue recognition Beginning on January 1, 2018, we changed the methodology for recognizing revenue and voyage expenses related to certain revenue streams to comply with the new accounting standards. IFRS 15, Revenue from Contracts with Customers, was issued by the International Accounting Standards Board on May 28, 2014. IFRS 15 amends the existing accounting standards for revenue recognition and is based on principles that govern the recognition of revenue at an amount an entity expects to be entitled when products or services are transferred to customers. IFRS 15 applies to an entity's first annual IFRS financial statements for a period beginning on or after January 1, 2018. The standard may be applied retrospectively to each prior period presented or retrospectively with the cumulative effect recognized as of the date of adoption (the “modified retrospective method”). We have applied the modified retrospective method upon the date of transition. Revenue earned by our vessels is comprised of pool revenue, time charter revenue and voyage revenue. (1) Pool revenue for each vessel is determined in accordance with the profit sharing terms specified within each pool agreement. In particular, the pool manager aggregates the revenues and expenses of all of the pool participants and distributes the net earnings to participants based on: • the pool points attributed to each vessel (which are determined by vessel attributes such as cargo carrying capacity, fuel consumption, and construction characteristics); and • the number of days the vessel participated in the pool in the period . (2) Time charter agreements are when our vessels are chartered to customers for a fixed period of time at rates that are generally fixed, but may contain a variable component based on inflation, interest rates, or current market rates. (3) Voyage charter agreements are charter hires, where a contract is made in the spot market for the use of a vessel for a specific voyage for a specified charter rate. Of these revenue streams, revenue generated from voyage charter agreements is within the scope of IFRS 15. Revenue generated from pools and time charters is accounted for as revenue earned under operating leases. Accordingly, the implementation of IFRS 15 did not have an effect on the revenue recognized from the pools or time charters, however these arrangements will be impacted by IFRS 16, Leases, which is effective for annual periods beginning on or after January 1, 2019 and is discussed further below. The accounting for our different revenue streams is as follows: Spot market revenue For vessels operating in the spot market, we recognize revenue ‘over time’ as the customer (i.e. the charterer) is simultaneously receiving and consuming the benefits of the vessel. Under IFRS 15, the time period over which revenue is recognized has changed from the previous accounting standard. Prior to the effective date of IFRS 15, revenue from voyage charter agreements was recognized as voyage revenue on a pro-rata basis over the duration of the voyage on a discharge to discharge basis. In the application of this policy, we did not begin recognizing revenue until (i) the amount of revenue could be measured reliably, (ii) it was probable that the economic benefits associated with the transaction would flow to the entity, (iii) the transactions stage of completion at the balance sheet date could be measured reliably, and (iv) the costs incurred and the costs to complete the transaction could be measured reliably. However, under IFRS 15, the performance obligation has been identified as the transportation of cargo from one point to another. Therefore, in a spot market voyage under IFRS 15, revenue is now recognized on a pro-rata basis commencing on the date that the cargo is loaded and concluding on the date of discharge. At December 31, 2017, we had two vessels operating in the spot market and the cumulative effect of the application of IFRS 15 under the modified retrospective method resulted in a $3,888 reduction in the opening balance of accumulated deficit on January 1, 2018. The following table summarizes the impact of adopting IFRS 15 on the Company's statement of income or loss and statement of comprehensive income or loss for the year ended December 31, 2018 for each of the line items affected. There was no impact on the Company's balance sheet at December 31, 2018 as the Company did not have any vessels operating in the spot market on that date. Additionally, there was no material impact on the statement of cash flows for the year ended December 31, 2018. In thousands of U.S. dollars Amounts after adoption of IFRS 15 Adjustments Amounts without adoption of IFRS 15 Revenue Vessel revenue $ 585,047 $ (173 ) $ 584,874 Operating expenses Voyage expenses (5,146 ) 177 (4,969 ) Total operating expenses (574,505 ) 177 (574,328 ) Net loss $ (190,071 ) $ 4 $ (190,067 ) Total comprehensive loss $ (190,071 ) $ 4 $ (190,067 ) Pool revenue We recognize pool revenue on a monthly basis, when the vessel has participated in a pool during the period and the amount of pool revenue for the month can be estimated reliably. We receive estimated vessel earnings based on the known number of days the vessel has participated in the pool, the contract terms, and the estimated monthly pool revenue. On a quarterly basis, we receive a report from the pool which identifies the number of days the vessel participated in the pool, the total pool points for the period, the total pool revenue for the period, and the calculated share of pool revenue for the vessel. We review the quarterly report for consistency with each vessel’s pool agreement and vessel management records. The estimated pool revenue is reconciled quarterly, coinciding with our external reporting periods, to the actual pool revenue earned, per the pool report. Consequently, in our financial statements, reported revenues represent actual pooled revenues. While differences do arise in the performance of these quarterly reconciliations, such differences are not material to total reported revenues. Time charter revenue Time charter revenue is recognized as services are performed based on the daily rates specified in the time charter contract. Voyage expenses Voyage expenses primarily include bunkers, port charges, canal tolls, cargo handling operations and brokerage commissions paid by us under voyage charters. Prior to the implementation of IFRS 15 on January 1, 2018, voyage costs were expensed ratably over the estimated length of each voyage, which can be allocated between reporting periods based on the timing of the voyage. The impact of recognizing voyage expenses ratably over the length of each voyage was not materially different on a quarterly and annual basis from a method of recognizing such costs as incurred. Consistent with our revenue recognition for voyage charters prior to the implementation of IFRS 15, voyage expenses were calculated on a discharge-to-discharge basis. Beginning on January 1, 2018, we changed the methodology for recognizing revenue and voyage expenses to comply with IFRS 15. Under IFRS 15, voyage costs incurred in the fulfillment of a voyage charter are deferred and amortized over the course of the charter commencing on the date that the cargo is loaded and concluding on the date of discharge. Voyage costs are only deferred if they (i) relate directly to such charter, (ii) generate or enhance resources to be used in meeting obligations under the charter and (iii) are expected to be recovered. The procurement of these services is managed on our behalf by our commercial manager, SCM (see Note 17). Vessel operating costs Vessel operating costs, which include crewing, repairs and maintenance, insurance, stores, lubricating oil consumption, communication expenses, and technical management fees, are expensed as incurred for vessels that are owned, finance leased or bareboat chartered-in. The procurement of these services is managed on our behalf by our technical manager, SSM (see Note 17). (Loss) / earnings per share Basic (loss) / earnings per share is calculated by dividing net (loss) / income attributable to equity holders of the parent by the weighted average number of common shares outstanding. Diluted (loss) / earnings per share is calculated by adjusting the net (loss) / income attributable to equity holders of the parent and the weighted average number of common shares used for calculating basic (loss) / earnings per share for the effects of all potentially dilutive shares. Such dilutive common shares are excluded when the effect would be to reduce a loss per share or increase earnings per share. In the years ended December 31, 2018 , 2017 and 2016 , there were potentially dilutive items as a result of our Equity Incentive Plans (see Note 16), our convertible senior notes due 2019, or Convertible Notes due 2019, and our convertible senior notes due 2022, or Convertible Notes due 2022, (as described in Note 13). Potentially dilutive items related to our Equity Incentive Plans, Convertible Notes due 2019 and Convertible Notes due 2022 were excluded from the composition of diluted earnings per share for the years ended December 31, 2018 , December 31, 2017 and December 31, 2016 because their effect would have been anti-dilutive. We apply the if-converted method when determining diluted (loss) / earnings per share. This requires the assumption that all potential ordinary shares have been converted into ordinary shares at the beginning of the period or, if not in existence at the beginning of the period, the date of the issue of the financial instrument or the granting of the rights by which they are granted. Under this method, once potential ordinary shares are converted into ordinary shares during the period, the dividends, interest and other expense associated with those potential ordinary shares will no longer be incurred. The effect of conversion, therefore, is to increase income (or reduce losses) attributable to ordinary equity holders as well as the number of shares in issue. Conversion will not be assumed for purposes of computing diluted earnings per share if the effect would be anti-dilutive. Charterhire expense Charterhire expense is the amount we pay to vessel owners to time or bareboat charter-in vessels. The amount is usually for a fixed period of time at rates that are generally fixed, but may contain a variable component based on inflation, interest rates, profit sharing or current market rates. In a time charter-in arrangement, the vessel’s owner is responsible for crewing and other vessel operating costs, whereas these costs are the responsibility of the charterer in a bareboat charter-in arrangement. Charterhire expense is recognized ratably over the charterhire period. Operating leases Costs in respect of operating leases are charged to the consolidated statement of income or loss on a straight line basis over the lease term. Foreign currencies The individual financial statements of Scorpio Tankers Inc. and each of its subsidiaries are presented in the currency of the primary economic environment in which we operate (its functional currency), which in all cases is U.S. dollars. For the purpose of the consolidated financial statements, our results and financial position are also expressed in U.S. dollars. In preparing the financial statements of Scorpio Tankers Inc. and each of its subsidiaries, transactions in currencies other than the U.S. dollar are recorded at the rate of exchange prevailing on the dates of the transactions. At the end of each reporting period, monetary assets and liabilities denominated in other currencies are retranslated into the functional currency at rates ruling at that date. All resultant exchange differences have been recognized in the consolidated statements of income or loss. The amounts charged to the consolidated statements of income or loss during the years ended December 31, 2018 , 2017 and 2016 were not material. Segment reporting During the years ended December 31, 2018 , 2017 and 2016 , we owned, finance leased or chartered-in vessels spanning four different vessel classes, Handymax, MR, LR1/Panamax and LR2/Aframax, all of which earn revenues in the seaborne transportation of refined petroleum products in the international shipping markets. Each vessel within its respective class qualifies as an operating segment under IFRS. However, each vessel also exhibits similar long-term financial performance and similar economic characteristics to the other vessels within the respective vessel class, thereby meeting the aggregation criteria in IFRS. We have therefore chosen to present our segment information by vessel class using the aggregated information from the individual vessels. Segment results are evaluated based on reported net income or loss from each segment. The accounting policies applied to the reportable segments are the same as those used in the preparation of our consolidated financial statements. It is not practical to report revenue or non-current assets on a geographical basis due to the international nature of the shipping market. Vessels under construction Vessels under construction are measured at cost and include costs incurred that are directly attributable to bringing the asset to the location and condition necessary for it to be capable of operating in the manner intended by management. These costs include installment payments made to the shipyards, directly attributable financing costs, professional fees and other costs deemed directly attributable to the construction of the asset. We had no vessels under construction as of December 31, 2018 . As of December 31, 2017 , we had two vessels under construction. Vessels and drydock Our fleet is measured at cost, which includes directly attributable financing costs and the cost of work undertaken to enhance the capabilities of the vessels, less accumulated depreciation and impairment losses. Depreciation is calculated on a straight-line basis to the estimated residual value over the anticipated useful life of the vessel from date of delivery. Vessels under construction are not depreciated until such time as they are ready for use. The residual value is estimated as the lightweight tonnage of each vessel multiplied by scrap value per ton. The scrap value per ton is estimated taking into consideration the historical four -year average scrap market rates available at the balance sheet date with changes accounted for in the period of change and in future periods. The vessels are required to undergo planned drydocks for replacement of certain components, major repairs and maintenance of other components, which cannot be carried out while the vessels are operating, approximately every 30 months or 60 months depending on the nature of work and external requirements. These drydock costs are capitalized and depreciated on a straight-line basis over the estimated period until the next drydock. In deferred drydocking, we only include direct costs that are incurred as part of the drydocking to meet regulatory requirements, or are expenditures that add economic life to the vessel, increase the vessel’s earnings capacity or improve the vessel’s efficiency. Direct costs include shipyard costs as well as the costs of placing the vessel in the shipyard. Expenditures for normal maintenance and repairs, whether incurred as part of the drydocking or not, are expensed as incurred. For an acquired or newly built vessel, a notional drydock component is allocated from the vessel’s cost. The notional drydock cost is estimated by us, based on the expected costs related to the next drydock, which is based on experience and past history of similar vessels, and carried separately from the cost of the vessel. Subsequent drydocks are recorded at actual cost incurred. The drydock component is depreciated on a straight-line basis to the next estimated drydock. The estimated amortization period for a drydock is based on the estimated period between drydocks. When the drydock expenditure is incurred prior to the expiry of the period, the remaining balance is expensed. Business combinations In May 2017, we entered into definitive agreements to acquire Navig8 Product Tankers Inc. ("NPTI"), including its fleet of 12 LR1 and 15 LR2 product tankers for approximately 5.5 million common shares of the Company and the assumption of NPTI's debt (herein referred to as "the Merger"). On June 14, 2017, we acquired part of NPTI’s business with the acquisition of four LR1 product tankers (the “NPTI Vessel Acquisition”) through the acquisition of entities holding those vessels and related debt for an acquisition price of $42.2 million in cash. On September 1, 2017, all conditions precedent were lifted and we acquired NPTI's remaining business including eight LR1 and 15 LR2 tankers (the "September Closing") when the Merger closed. We have accounted for these transactions as business combinations using the acquisition method of accounting as set forth in IFRS 3 Business Combinations, with the Company determined as the accounting acquirer under this guidance. Accordingly, we have measured the identifiable assets acquired and the liabilities assumed at their acquisition date fair values. The consideration transferred has been measured at fair value, with the fair value of the approximately 5.5 million common shares issued in September 2017 based on the price of such shares on the date of acquisition. The difference between the fair value of the net assets acquired and the fair value of the consideration transferred has been recorded as a bargain purchase gain with respect to the acquisition of the four LR1 tankers in June 2017 and goodwill with respect to the acquisition of the remaining fleet in September 2017. Acquisition related costs have been expensed as incurred. This transaction is further described in Note 2. Impairment of goodwill Goodwill arising from the September Closing has been allocated to the cash generating units within each of the respective operating segments that are expected to benefit from the synergies of the Merger (LR2s and LR1s). Goodwill is not amortized and is tested annually ('or more frequently, if impairment indicators arise') by comparing the aggregate carrying amount of the cash generating units in each respective operating segment, plus the allocated goodwill, to their recoverable amounts. Recoverable amount is the higher of the fair value less cost to sell ('determined by taking into consideration two independent broker valuations for each vessel within each segment') and value in use. In assessing value in use, the estimated future cash flows of the operating segment are discounted to their present value using a pre-tax discount rate that reflects current market assessments of the time value of money and the risks specific to the operating segment for which the estimates of future cash flows have not been adjusted. If the recoverable amount is determined to be less than the aggregate carrying amount of the assets in each respective operating segment, plus goodwill, then goodwill is reduced to the lower of the recoverable amount or zero. An impairment loss is recognized as an expense immediately. The carrying value of our vessels, drydock and vessels under construction is reviewed for impairment separately, as described below. Impairment of vessels, drydock and vessels under construction At each balance sheet date, we review the carrying amount of our vessels and drydock and vessels under construction to determine whether there is any indication that those assets have suffered an impairment loss. If any such indication exists, the recoverable amount of the vessels and drydock and vessels under construction is estimated in order to determine the extent of the impairment loss (if any). We treat each vessel and the related drydock as a cash generating unit. Recoverable amount is the higher of the fair value less cost to sell (determined by taking into consideration two independent broker valuations) and value in use. In assessing value in use, the estimated future cash flows are discounted to their present value using a pre-tax discount rate that reflects current market assessments of the time value of money and the risks specific to the asset for which the estimates of future cash flows have not been adjusted. If the recoverable amount of the cash generating unit is estimated to be less than its carrying amount, the carrying amount of the cash-generating unit is reduced to its recoverable amount. An impairment loss is recognized as an expense immediately. Where an impairment loss subsequently reverses, the carrying amount of the cash generating unit is increased to the revised estimate of its recoverable amount, but so that the increased carrying amount does not exceed the carrying amount that would have been determined had no impairment loss been recognized for the cash generating unit in the prior years. A reversal of impairment is recognized as income immediately. Inventories Inventories consist of lubricating oils and other items including stock provisions, and are stated at the lower of cost and net realizable value. Cost is determined using the first in first out method. Stores and spares are charged to vessel operating costs when purchased. Borrowing costs Borrowing costs directly attributable to the acquisition, construction or production of qualifying assets, which are assets that necessarily take a substantial period of time (for example, the time period necessary to construct a vessel) to get ready for their intended use or sale, are added to the cost of those assets, until such time as the assets are substantially ready for their intended use or sale. To the extent that variable rate borrowings are used to finance a qualifying asset and are hedged in an effective cash flow hedge of interest rate risk, the effective portion of the derivative is recognized in other comprehensive income and released to income or loss when the qualifying asset impacts income or loss. To the extent that fixed rate borrowings are used to finance a qualifying asset and are hedged in an effective fair value hedge of interest rate risk, the capitalized borrowing costs reflect the hedged interest rate. Investment income earned on the temporary investment of specific borrowings pending their expenditure on qualifying assets is deducted from the borrowing costs eligible for capitalization. All other borrowing costs are recognized in the consolidated statement of income or loss in the period in which they are incurred. Financial instruments IFRS 9, Financial instruments , sets out requirements for recognizing and measuring financial assets, financial liabilities and some contracts to buy or sell non-financial items. This standard replaces IAS 39 Financial Instruments: Recognition and Measurement and is effective for annual periods beginning on or after January 1, 2018. The adoption of this standard did not have a material impact on these consolidated financial statements. Financial assets and financial liabilities are recognized in our balance sheet when we become a party to the contractual provisions of the instrument. Financial assets All financial assets are recognized and derecognized on a trade date where the purchase or sale of a financial asset is under a contract whose terms require delivery within the timeframe established by the market concerned, and are initially measured at fair value, plus transaction costs, except for those financial assets classified as at fair value through profit or loss, which are initially measured at fair value. Financial assets are classified into the following specified categories: financial assets "at fair value through profit or loss", or FVTPL, "at fair value through other comprehensive income" or at amortized costs on the basis of the Company’s business model for managing financial assets and the contractual cash flow characteristics of the financial asset. Income is recognized on an effective interest basis for debt instruments other than those financial assets classified as at FVTPL. Financial assets at amortized cost Financial assets are measured at amortized cost if both of the following conditions are met: • the financial asset is held within a business model whose objective is to hold financial assets in order to collect contractual cash flows; and • the contractual terms of the financial asset give rise on specified dates to cash flows that are solely payments of principal and interest on the principal amount outstanding. Financial assets at fair value through other comprehensive income Financial assets are measured at fair value through other comprehensive income if both of the following conditions are met: • the financial asset is held within a business model whose objective is achieved by both collecting contractual cash flows and selling financial assets; and • the contractual terms of the financial asset give rise on specified dates to cash flows that are solely payments of principal and interest on the principal amount outstanding. Financial assets at FVTPL Financial assets are classified as at FVTPL where the financial asset is held for trading. A financial asset is classified as held for trading if: • it has been acquired principally for the purpose of selling in the near future; or • it is a part of an identified portfolio of financial instruments that we manage together and has a recent actual pattern of short-term profit-taking; or • it is a derivative that is not designated and effective as a hedging instrument. Financial assets at FVTPL are stated at fair value, with any resultant gain or loss recognized in the statement of income or loss. The net gain or loss recognized in income or loss incorporates any dividend or interest earned on the financial asset. Fair value is determined in the manner described in Note 24. Accounts receivable Amounts due from the Scorpio Pools and other receivables that have fixed or determinable payments and are not quoted in an active market are classified as accounts receivable. Accounts receivable without a significant financing component are initially measured at their transaction price and subsequently measured at amortized cost using the effective interest method, less any impairment (as discussed below). Interest income is recognized by applying the effective interest rate, except for short-term receivables when the recognition of interest would be immaterial. Impairment of financial assets IFRS 9 replaces the 'incurred loss' model in IAS 39 with an 'expected credit loss' (ECL) model to determine and recognize impairments. ECLs are a probability-weighted estimate of credit losses and are measured as the present value of all cash shortfalls (i.e. the difference between cash flows due to the entity in accordance with the contract and cash flows that the Company expects to receive). ECLs are discounted at the effective interest rate of the financial asset. Under IFRS 9, credit losses are recognized earlier than under IAS 39. Under the general model to ECLs under IFRS 9, loss allowances are measured in two different ways: • 12-month ECLs : 12-month ECLs are the expected credit losses that may result from default events on a financial instrument that are possible within the 12 months after the reporting date. 12-month ECLs are utilized when a financial asset has a low credit risk at the reporting date or has not had a significant increase in credit risk since initial recognition. • Lifetime ECLs : these are ECLs that result from all possible default events over the expected life of a financial instrument. Lifetime ECLs are determined when an impaired financial asset has been purchased or originated or when there has been a significant increase in credit risk since initial recognition However, IFRS 9 requires operational simplifications for trade receivables, contract assets and lease receivables because they are often held by entities that do not have sophisticated credit risk management systems (i.e. the ‘simplified model’). These simplifications eliminate the need to calculate 12- month ECLs and to assess when a significant increase in credit risk has occurred. Under the simplified approach: • For trade receivables or contract assets that do not contain a significant financing component, the loss allowance is required to be measured at initial recognition and throughout the life of the receivable at an amount equal to lifetime ECL. • For finance lease receivables, operating lease receivables, or trade receivables or contract assets that do contain a significant financing component, IFRS 9 permits an entity to choose as its accounting policy to measure the loss allowance using the general model or the simplified model (i.e. at an amount equal to lifetime expected credit losses). We measure loss allowances for all trade and lease receivables under the simplified model using the lifetime ECL approach. When estimating ECLs, the Company considers reasonable and supportable information that is available without undue cost or effort at the reporting date about past events, current conditions and forecasts of future economic conditions. The application of the ECL requirements under IFRS 9 did not resu

Merger with Navig8 Product Tank

Merger with Navig8 Product Tankers Inc	12 Months Ended
	Dec. 31, 2018
Business Combinations1 [Abstract]
Merger with Navig8 Product Tankers Inc	Merger with Navig8 Product Tankers Inc Background In May 2017, we entered into definitive agreements to acquire NPTI, including its fleet of 12 LR1 and 15 LR2 product tankers for approximately 5.5 million common shares of the Company and the assumption of NPTI's debt. The rationale for the Merger was that both companies operate complementary fleets of modern, fuel efficient product tankers, and the combination of both companies provided an opportunity to materially increase our size and scale so that we are better positioned to benefit from a cyclical recovery, without ordering new vessels and adding to the total supply of the product tankers globally. On June 14, 2017, we acquired part of NPTI’s business with the acquisition of four LR1 product tankers through the acquisition of entities holding those vessels (which we refer to as "NPTI Vessel Acquisition") and related debt for an acquisition price of $42.2 million in cash. On September 1, 2017, all conditions precedent were lifted and we acquired NPTI's remaining business including eight LR1 and 15 LR2 tankers when the Merger closed (which we refer to as the "September Closing"). We assumed NPTI's aggregate outstanding indebtedness of $907.4 million upon the closing of these transactions. The key events, consideration and corresponding timeline of the Merger were as follows: • On May 30, 2017, we issued 5 million shares of common stock in an underwritten public offering at an offering price of $40.00 per share for net proceeds of approximately $188.7 million , after deducting underwriters' discounts and offering expenses. The completion of this offering was a condition to closing the Merger. • On June 14, 2017, we acquired part of NPTI’s business with the acquisition of four LR1 product tankers through the acquisition of entities holding those vessels and related debt for an acquisition price of $42.2 million in cash. • On September 1, 2017, at the September Closing, all conditions precedent were lifted and we acquired NPTI's remaining business including eight LR1 and 15 LR2 tankers. Pursuant to the Merger Agreement, one share in NPTI gave the right to receive 0.1176 of our shares, and we issued a total of 5,499,999 common shares to NPTI's shareholders as Merger consideration. Insignificant transaction costs were incurred as part of this issuance. • We assumed NPTI's aggregate outstanding indebtedness of $907.4 million upon the closing of these transactions. Accounting for the Merger With the closing of these transactions, we took control of NPTI’s business. The factors that were considered in determining that we should be treated as the accounting acquirer in the Merger were the relative voting rights in the combined company, the composition of the board of directors in the combined company, the relative sizes of the Company and NPTI, and the composition of senior management of the combined company. Our original intentions were to acquire NPTI and its entire fleet of 27 vessels. We agreed to acquire the vessels that were part of the NPTI Vessel Acquisition prior to the closing of the Merger in order to provide NPTI with additional liquidity through the closing date of the Merger. The NPTI Vessel Acquisition was negotiated on non-recourse terms that did not allow for this transaction to be rescinded or repriced in the event that the Merger did not close (if, for example, either party exercised their termination rights, as defined in the Merger Agreement, prior to the September Closing). In addition, we gained control of the four entities on June 14, 2017 and were not restricted in the use of these underlying vessels. Accordingly, we have assessed that this first transaction was a separate transaction from an accounting perspective. As part of this assessment, we determined that the NPTI Vessel Acquisition met the criteria as a business combination under IFRS 3 given the acquisition of the underlying inputs, processes and outputs that accompanied these vessels. The key determinant in this assessment was the acquisition of the processes underlying the entities acquired as we assumed the rights and obligations under the commercial and technical management contracts for these entities. The processes underlying these agreements are summarized as follows: Commercial management - The NPTI Acquisition Vessels operated under the commercial management of the Navig8 Group (a related party affiliate to NPTI) both prior to and subsequent to closing. This included, but was not limited to, entering into voyage arrangements with the Navig8 Group's existing customers, determining the locations where the vessels traded and the types of cargos that the vessels transported. Technical management - In addition, the technical management contracts were also maintained subsequent to closing. The processes underlying these contracts included crewing, which includes but is not limited to ensuring that the vessel is appropriately staffed with qualified personnel, payment of crew wages and arrangement of crew travel, repairs and maintenance of the vessel, procurement of supplies and spare parts, safety, quality and environmental compliance services, insurance, and meeting third party quality assurance compliance (including oil major vetting). The assumption of these processes was the distinguishing factor between the accounting for this transaction as a separate business combination, rather than as an asset acquisition. Moreover, the fact pattern was the same for the entities acquired at the September Closing as we acquired the inputs, processes and outputs underlying those entities as well. Accordingly, the NPTI Vessel Acquisition that closed in June 2017 and the September Closing were accounted for as two separate business combinations. The following represents the purchase price allocation for both the NPTI Vessel Acquisition and the September Closing. The consideration transferred for the September Closing has been measured at fair value, with the fair value of the common shares issued in September 2017 based on the average of the high and low price of such shares on the date of acquisition. In thousands of U.S. Dollars NPTI Vessel Acquisition September Closing - Preliminary Purchase Price Allocation - December 31, 2017 Measurement Period Adjustments September Closing - Final Purchase Price Allocation - December 31, 2018 Cash and cash equivalents $ 6,180 $ 15,149 $ — $ 15,149 Restricted cash — 13,641 — 13,641 Accounts receivables 3,330 16,323 132 16,455 (1) Prepaid expenses and other assets 2,932 19,940 — 19,940 Inventories 299 1,415 — 1,415 Restricted cash - non-current 4,000 6,380 — 6,380 Vessels, net 158,500 972,750 — 972,750 Accounts payable and accrued expenses (13,720 ) (2,966 ) (189 ) (3,155 ) (2) Debt (current and non-current) (113,856 ) (793,519 ) — (793,519 ) Redeemable Preferred Shares — (39,495 ) — (39,495 ) Net assets acquired and liabilities assumed 47,665 209,618 (57 ) 209,561 Total purchase price consideration 42,248 221,100 — 221,100 Provisional (bargain purchase) / goodwill $ (5,417 ) $ 11,482 $ 57 $ 11,539 The bargain purchase relating to the NPTI Vessel Acquisition arose primarily as a result of increases in the market prices of secondhand LR1 vessels between the date that the negotiations took place and the closing date of the NPTI Vessel Acquisition, i n addition to our bargaining power during the negotiations given NPTI's immediate need for additional liquidity. The goodwill arising from the September Closing is attributable to benefits that we expect to realize as a result of the increased size and scale of the combined company and the anticipated benefits that we expect to achieve given this enhanced market position. This purchase price allocation was finalized in September 2018 and the measurement period adjustments are described below: (1) The September Closing measurement period adjustments to accounts receivable relates to changes in estimates of revenue earned for vessels operating in the Navig8 Pools (which are owned and operated by the Navig8 Group) during the periods prior to the closing of the Merger. A vessel's share of pool revenues in a particular period can change in subsequent periods as initial voyage results are finalized for items that have initially been estimated (such as demurrage claims). (2) The September Closing measurement period adjustments to accounts payable and accrued expenses relate to new information obtained regarding certain expense items that relate to the period prior to the closing of the Merger but were not reflected in the initial purchase price allocation. There were no contingent liabilities assumed as part of the Merger. Accounts receivables Accounts receivables primarily represent hire receivables due from the Navig8 Pools, which are owned and operated by the Navig8 Group. The carrying value of accounts receivables acquired has been assessed as their fair value as, at the acquisition date, there was no indication that these amounts will not be collectible. Vessels, Net Vessels have been valued at fair value after taking into consideration the average of two leading, independent and internationally recognized ship brokers. The brokers assess fair value based on each vessel's age, the shipyard where it was built, its deadweight capacity, and other factors that may influence the selling price between a willing buyer and seller. We consider these valuations to be Level 2 fair value measurements. Debt (current and non-current) NPTI’s long-term debt consists of secured borrowings and obligations due under finance leases. Secured debt - The fair value of NPTI's secured debt was measured using the income approach under IFRS 13, Fair Value Measurement , which takes into account the future cash flows that a market participant would expect to receive from holding the liability as an asset. In making this assessment, we estimated each facility's rate of return based on the margin for each facility in addition to the interest rate swap forward curve as published by a third party on the date of acquisition. This rate of return was used to assess whether, in conjunction with other terms of these arrangements (such as the leverage ratio), the economics of each arrangement were consistent with the economics that can be attained in the market by reference to recently executed transactions under similar terms and conditions. Fair value adjustments were made to those arrangements where differences were identified. We consider these valuations to be Level 2 fair value measurements. Obligations due under sale and leaseback financing facilities - The fair value of NPTI’s sale and leaseback financing arrangements was measured using the income approach under IFRS 13, Fair Value Measurement , which takes into account the future cash flows that a market participant would expect to receive from holding the liability as an asset. In making this assessment, the Company estimated each facility's variable interest component based on the interest rate swap forward curve as published by a third party on the date of acquisition. A rate of return was estimated based on these inputs and a terminal value based on either the purchase obligation or the final purchase option (wherever applicable). This rate of return was used to assess whether, in conjunction with other terms of these arrangements (such as the leverage ratio or the existence of a purchase obligation), the economics of each arrangement were consistent with the economics that can be attained in the market by reference to recently executed sale and leaseback arrangements that were entered into under similar terms and conditions. Fair value adjustments were made to those arrangements where differences were identified. We consider these valuations to be Level 2 fair value measurements. Redeemable Preferred Shares and Other non-current liabilities — As of the date of the September Closing, NPTI had 3 million Series A Redeemable Preferred Shares outstanding. These shares were issued by NPTI in 2016 for gross proceeds of $30 million . According to the terms of the Redeemable Preferred Shares, upon a change of control, NPTI was required to redeem all of the Redeemable Preferred Shares at a redemption price equal to the sum of $10.00 per share plus any accrued and unpaid dividends, multiplied by a redemption premium of 1.20 . The fair value of the redemption shares was determined to be $6.6 million as of the date of closing. Accordingly, the fair value of the aggregate liability was determined to be $39.5 million which reflects the redemption price of $30.0 million , accrued and unpaid dividends of $2.9 million and the redemption premium of $6.6 million . This liability was repaid upon the September Closing. During the year ended December 31, 2017, the Company recorded $45.3 million in revenue and a net loss of $18.7 million attributable to the operations of NPTI that were acquired, which excludes the impact of general and administrative expenses as these are generally not allocated to our operating segments. Unaudited Pro Forma Results If the Merger had occurred on January 1, 2017, unaudited consolidated pro-forma revenue and net loss for the year ended December 31, 2017 would have been $594.5 million and $193.4 million , respectively. These amounts have been calculated using NPTI's results for the year ended December 31, 2017 and adjusted for the following: Revenue — NPTI was party to a Pool Management Revenue Share Rights agreement with each of the pools that its vessels operated in. This agreement enabled NPTI to receive a 30% share of the net revenues derived from the commercial management of the pools in exchange for 33,696 shares of NPTI common stock. This agreement was cancelled on the date of execution of the Merger Agreement of May 23, 2017 and the shares were returned to NPTI and cancelled. Accordingly, amounts earned under this agreement of $0.1 million during the year ended December 31, 2017 were eliminated on a pro forma basis. Depreciation — Depreciation expense has been adjusted to reflect: • the change in depreciation that would have occurred assuming the fair value adjustments to Vessels had applied beginning on January 1, 2017. • the Company's accounting policy for the depreciation of vessels and drydock whereby (i) depreciation is calculated on a straight-line basis to the estimated residual value over the anticipated useful life of the vessel from the date of delivery and (ii) for an acquired or newly built vessel, a notional drydock component is allocated from the vessel’s cost and depreciated on a straight-line basis to the next estimated drydock. Financial expenses - Financial expenses have been adjusted to reflect: • Deferred financing fee amortization — unamortized deferred charges relating to NPTI’s secured debt were eliminated and reflected in the fair value assessment of the debt. • Interest expense - the preliminary purchase price allocates the estimated fair value of NPTI’s secured debt and obligations due under sale leaseback facilities. Accordingly, we adjusted interest expense on a pro forma basis to reflect the amortization of these fair value adjustments for the year ended December 31, 2017. Transaction Costs We incurred $36.1 million of transactions costs relating to the Merger, which were expensed during the year ended December 31, 2017 and $0.3 million of transaction costs during the year ended December 31, 2018. These costs include $16.1 million of advisory and other professional fees, $17.7 million of costs related to the early termination of NPTI’s existing service agreements and $2.6 million of other costs, which include fees incurred for a back-stop credit facility that was put in place in the event that certain of NPTI's lenders did not consent to the Merger. This facility was cancelled upon the receipt of such consents. We settled $6.0 million of the fees incurred to terminate NPTI's existing service agreements through the issuance of warrants to the NPTI pool manager, exercisable into 150,000 of our common shares at an exercise price of $0.10 per share, upon the delivery of the vessels acquired from NPTI to the Scorpio Pools. These fees relate to the termination of the applicable pooling arrangements with NPTI, and we issued two warrants to the Navig8 pool manager as consideration for the termination. The first warrant was issued in June 2017 as part of the NPTI Vessel Acquisition, and was exercisable on a pro-rata basis for an aggregate of 22,222 of our common shares. The second warrant was issued on similar terms to the first warrant on September 1, 2017 and was exercisable on a pro-rata basis for an aggregate of 127,778 of our common shares at an exercise price of $0.10 per share upon the delivery of each of the 23 remaining vessels to the Scorpio Pools. These warrants were accounted for on the date of issuance and valued based on the average of the high and low price of our common shares on such dates. All of the warrants had been exercised as of December 31, 2017. For impairment testing of goodwill, refer to Note 8.

Cash and Cash Equivalents

Cash and Cash Equivalents	12 Months Ended
	Dec. 31, 2018
Subclassifications of assets, liabilities and equities [abstract]
Cash and cash equivalents	Cash and cash equivalents The following table depicts the components of our cash as of December 31, 2018 and 2017 : At December 31, In thousands of U.S. dollars 2018 2017 Cash at banks $ 592,498 $ 185,377 Cash on vessels 1,154 1,085 $ 593,652 $ 186,462

Prepaid expenses and other asse

Prepaid expenses and other assets	12 Months Ended
	Dec. 31, 2018
Subclassifications of assets, liabilities and equities [abstract]
Prepaid expenses and other assets	Prepaid expenses and other assets The following is a table summarizing our prepaid expenses and other current assets as of December 31, 2018 and 2017 : At December 31, In thousands of U.S. dollars 2018 2017 SSM - prepaid vessel operating expenses 2,461 6,391 Prepaid insurance - related party — 2,428 Prepaid expenses from related parties 2,461 8,819 Prepaid interest 6,870 1,153 Prepaid insurance 4,449 1,001 Third party - prepaid vessel operating expenses 712 1,255 Other prepaid expenses 1,179 5,492 $ 15,671 $ 17,720

Accounts receivable

Accounts receivable	12 Months Ended
	Dec. 31, 2018
Subclassifications of assets, liabilities and equities [abstract]
Accounts receivable	Accounts receivable The following is a table summarizing our accounts receivable as of December 31, 2018 and 2017 : At December 31, In thousands of U.S. dollars 2018 2017 Scorpio MR Pool Limited $ 33,288 $ 27,720 Scorpio LR2 Pool Limited 24,563 7,026 Scorpio Handymax Tanker Pool Limited 4,559 6,037 Scorpio LR1 Pool Limited 3,705 3,002 Scorpio Aframax Pool Limited 63 1,095 Scorpio Commercial Management S.A.M. 2,511 — Receivables from the related parties 68,689 44,880 Insurance receivables 204 870 Freight and time charter receivables 22 2,399 Receivables from Navig8 Group Pools 17 14,625 Other receivables 786 2,684 $ 69,718 $ 65,458 Scorpio MR Pool Limited, Scorpio LR2 Pool Limited, Scorpio Handymax Tanker Pool Limited, Scorpio LR1 Pool Limited and Scorpio Aframax Pool Limited are related parties, as described in Note 17. Amounts due from the Scorpio Pools relate to income receivables and receivables for working capital contributions which are expected to be collected within one year. The amounts receivable from the Scorpio Pools as of December 31, 2018 and 2017 include $22.9 million and $25.7 million , respectively, of working capital contributions made on behalf of our vessels to the Scorpio Pools. Receivables from SCM primarily represent amounts due from the agreement to reimburse a portion of the commissions that SCM charges the Company’s vessels (as described in Note 17) to effectively reduce such commissions to 0.85% of gross revenue per charter fixture. This agreement is effective from September 1, 2018 and ending on June 1, 2019 and the amount due at December 31, 2018 represents the reimbursement earned from September 1, 2018 through December 31, 2018. Receivables from Navig8 Group Pools represent amounts due from the Navig8 LR8 and Alpha8 pools for certain vessels that were acquired from NPTI which operated in such pools during the year ended December 31, 2017. These vessels joined the Scorpio Pools in the fourth quarter of 2017 or first quarter of 2018. Freight and time charter receivables represent amounts collectible from customers for our vessels operating on time charter or in the spot market. Insurance receivables primarily represent amounts collectible on our insurance policies in relation to vessel repairs. We consider that the carrying amount of accounts receivable approximates their fair value due to the short maturity thereof. Accounts receivable are non-interest bearing. At December 31, 2018 and December 31, 2017 , no material receivable balances were either past due or impaired.

Vessels

Vessels	12 Months Ended
	Dec. 31, 2018
Property, plant and equipment [abstract]
Vessels	Vessels Operating vessels and drydock In thousands of U.S. dollars Vessels Drydock Total Cost As of January 1, 2018 4,389,648 82,888 4,472,536 Additions (1) 79,454 4,964 84,418 Write-offs (2) — (1,500 ) (1,500 ) As of December 31, 2018 4,469,102 86,352 4,555,454 Accumulated depreciation and impairment As of January 1, 2018 (347,703 ) (34,739 ) (382,442 ) Charge for the period (158,740 ) (17,983 ) (176,723 ) Write-offs (2) — 1,500 1,500 As of December 31, 2018 (506,443 ) (51,222 ) (557,665 ) Net book value As of December 31, 2018 $ 3,962,659 $ 35,130 $ 3,997,789 Cost As of January 1, 2017 $ 3,126,790 $ 60,089 $ 3,186,879 Additions (3) 333,338 12,667 346,005 Vessels acquired in merger with NPTI (4) 1,113,618 17,632 1,131,250 Disposal of vessels (5) (184,098 ) (3,750 ) (187,848 ) Write-offs (6) — (3,750 ) (3,750 ) As of December 31, 2017 4,389,648 82,888 4,472,536 Accumulated depreciation and impairment As of January 1, 2017 (246,210 ) (27,415 ) (273,625 ) Charge for the period (127,369 ) (14,049 ) (141,418 ) Disposal of vessels (5) 25,876 2,975 28,851 Write-offs (6) — 3,750 3,750 As of December 31, 2017 (347,703 ) (34,739 ) (382,442 ) Net book value As of December 31, 2017 $ 4,041,945 $ 48,149 $ 4,090,094 (1) Additions in 2018 primarily relate to (i) the deliveries of STI Esles II and STI Jardins and corresponding calculations of notional drydock on these vessels and (ii) drydock costs incurred on certain of our vessels. (2) Represents the write-off of the notional drydock costs of STI Fontvieille and STI Ville which were drydocked in 2018. (3) Additions in 2017 primarily relate to (i) the deliveries of eight newbuilding vessels and corresponding calculations of notional drydock on these vessels and (ii) drydock costs incurred on certain of our vessels. (4) Represents the fair value of the vessels acquired in the Merger with NPTI as described in Note 2. (5) Represents the net book value of (i) STI Sapphire and STI Emerald, which were sold during the year ended December 31, 2017 and (ii) STI Beryl , STI Le Rocher and STI Larvotto, which were sold and leased back during the year ended December 31, 2017 . These transactions are further described below. (6) Represents the write-off of the notional drydock costs of STI Amber, STI Topaz, STI Ruby, STI Garnet and STI Onyx which were drydocked in 2017. 2018 Activity We took delivery of the following newbuilding vessels during the year ended December 31, 2018 resulting in an increase of $81.0 million in Vessels from December 31, 2017 : Month Vessel Name Delivered Type 1 STI Esles II January 2018 MR 2 STI Jardins January 2018 MR Additionally, we incurred drydock costs during the year ended December 31, 2018. These primarily consisted of: • S TI Fontvieille and STI Ville, which were drydocked in accordance with their scheduled, class required special survey during 2018 for an aggregate cost of $1.9 million and 46 offhire days. • STI Duchessa and STI Opera, which were drydocked in accordance with their class required special survey in December 2018 and these vessels completed these surveys in January 2019. $0.7 million of drydock costs relating to these vessels were incurred during the year ended December 31, 2018. • $0.9 million of drydock costs incurred for vessels that are expected to enter into drydock in 2019. Ballast Water Treatment Systems and Scrubbers In July 2018, we executed an agreement to purchase 55 ballast water treatment systems from an unaffiliated third-party supplier for total consideration of $36.2 million . These systems are expected to be installed over the next five years, as each respective vessel under the agreement is due for its International Oil Pollution Prevention, or IOPP, renewal survey. Additionally, we expect to retrofit the substantial majority of our vessels with exhaust gas cleaning systems, or scrubbers. The scrubbers will enable our ships to use high sulfur fuel oil, which is less expensive than low sulfur fuel oil, in certain parts of the world. From August 2018 through November 2018, we entered into agreements with two separate suppliers to retrofit a total of 77 of our tankers with such systems for total consideration of $116.1 million (which excludes installation costs). These systems are expected to be installed throughout 2019 and 2020. We also obtained options to retrofit additional tankers under these agreements. The following table is a timeline of future expected payments and dates for our commitments to purchase scrubbers and ballast water treatment systems as of December 31, 2018 (1) : As of December 31, Amounts in thousands of US dollars 2018 Less than 1 month $ 926 1-3 months 19,481 3 months to 1 year 93,188 1-5 years 18,279 5+ years — Total $ 131,874 (1) These amounts are subject to change as installation times are finalized. The amounts presented exclude installation costs. 2017 Activity We took delivery of the following newbuilding vessels during the year ended December 31, 2017 resulting in an increase of $346.0 million in Vessels from December 31, 2016 : Month Vessel Name Delivered Type 1 STI Selatar February 2017 LR2 2 STI Rambla March 2017 LR2 3 STI Galata March 2017 MR 4 STI Bosphorus April 2017 MR 5 STI Leblon July 2017 MR 6 STI La Boca July 2017 MR 7 STI San Telmo September 2017 MR 8 STI Donald C Trauscht October 2017 MR Additionally, five of the Company's 2012 built MR product tankers, STI Amber, STI Topaz, STI Ruby, STI Garnet and STI Onyx , were drydocked in accordance with their scheduled, class required special survey during 2017. These vessels were offhire for an aggregate of 102 days and the aggregate drydock cost was $6.4 million . Vessel Sales In April 2017, we executed agreements with Bank of Communications Financial Leasing Co., Ltd. (the “Buyers”) to sell and leaseback, on a bareboat basis, three 2013 built MR product tankers, STI Beryl , STI Le Rocher and STI Larvotto . The selling price was $29.0 million per vessel, and we agreed to bareboat charter-in these vessels for a period of up to eight years for $8,800 per day per vessel. Each bareboat agreement has been accounted for as an operating lease. We have the option to purchase these vessels beginning at the end of the fifth year of the agreements through the end of the eighth year of the agreements. Additionally, a deposit of $4.35 million per vessel was retained by the buyers and will either be applied to the purchase price of the vessel if a purchase option is exercised, or refunded to us at the expiration of the agreements. These sales closed in April 2017 and as a result, all amounts outstanding under our 2011 Credit Facility of $42.2 million were repaid and a $14.2 million loss on sales of vessels was recorded during the year ended December 31, 2017. In April 2017, we executed an agreement with an unrelated third party to sell two 2013 built, MR product tankers, STI Emerald and STI Sapphire , for a sales price of $56.4 million in aggregate. The sale of STI Emerald closed in June 2017, and the sale of STI Sapphire closed in July 2017. As a result of this transaction, we recorded an aggregate loss on sale of $9.1 million . Additionally, we repaid the aggregate outstanding debt for both vessels of $27.6 million on the BNP Paribas Credit Facility in June 2017 and wrote-off $0.5 million of deferred financing fees as a result of this repayment. Collateral agreements Vessels with an aggregate carrying value of $3,997.8 million at December 31, 2018 , have been pledged as collateral under the terms of our secured debt or have been sold under the terms of our lease financing arrangements. The below table is a summary of these vessels, along with the respective borrowing or lease financing facility (which are described in Note 13) as of December 31, 2018 : Credit Facility Vessel Name $116.0 Million Lease Financing STI Oxford $116.0 Million Lease Financing STI Selatar $116.0 Million Lease Financing STI Gramercy $116.0 Million Lease Financing STI Queens $157.5 Million Lease Financing STI Alexis $157.5 Million Lease Financing STI Benicia $157.5 Million Lease Financing STI Duchessa $157.5 Million Lease Financing STI Mayfair $157.5 Million Lease Financing STI San Antonio $157.5 Million Lease Financing STI St. Charles $157.5 Million Lease Financing STI Yorkville 2017 Credit Facility STI Galata 2017 Credit Facility STI Bosphorus 2017 Credit Facility STI Leblon 2017 Credit Facility STI La Boca 2017 Credit Facility STI San Telmo 2017 Credit Facility STI Donald C Trauscht 2017 Credit Facility STI Esles II 2017 Credit Facility STI Jardins 2018 CMB Lease Financing STI Milwaukee 2018 CMB Lease Financing STI Battery 2018 CMB Lease Financing STI Tribeca 2018 CMB Lease Financing STI Bronx 2018 CMB Lease Financing STI Manhattan 2018 CMB Lease Financing STI Seneca 2018 NIBC Credit Facility STI Memphis 2018 NIBC Credit Facility STI Soho ABN AMRO / K-Sure Credit Facility STI Precision ABN AMRO / K-Sure Credit Facility STI Prestige ABN AMRO / SEB Credit Facility STI Hammersmith ABN AMRO / SEB Credit Facility STI Westminster ABN AMRO / SEB Credit Facility STI Winnie ABN AMRO / SEB Credit Facility STI Lauren ABN AMRO / SEB Credit Facility STI Connaught ABN AMRO Credit Facility STI Spiga ABN AMRO Credit Facility STI Savile Row ABN AMRO Credit Facility STI Kingsway ABN AMRO Credit Facility STI Carnaby AVIC Lease Financing STI Fontvieille AVIC Lease Financing STI Ville AVIC Lease Financing STI Brooklyn AVIC Lease Financing STI Rose AVIC Lease Financing STI Rambla BCFL Lease Financing (LR2s) STI Solace BCFL Lease Financing (LR2s) STI Solidarity BCFL Lease Financing (LR2s) STI Stability BCFL Lease Financing (MRs) STI Amber BCFL Lease Financing (MRs) STI Topaz BCFL Lease Financing (MRs) STI Ruby BCFL Lease Financing (MRs) STI Garnet BCFL Lease Financing (MRs) STI Onyx China Huarong Lease Financing STI Opera China Huarong Lease Financing STI Venere China Huarong Lease Financing STI Virtus China Huarong Lease Financing STI Aqua China Huarong Lease Financing STI Dama China Huarong Lease Financing STI Regina Citibank / K-Sure Credit Facility STI Excellence Citibank / K-Sure Credit Facility STI Executive Citibank / K-Sure Credit Facility STI Experience Citibank / K-Sure Credit Facility STI Express CMB Lease Financing STI Pride CMB Lease Financing STI Providence COSCO Shipping Lease Financing STI Battersea COSCO Shipping Lease Financing STI Wembley COSCO Shipping Lease Financing STI Texas City COSCO Shipping Lease Financing STI Meraux Credit Agricole Credit Facility STI Exceed Credit Agricole Credit Facility STI Excel Credit Agricole Credit Facility STI Excelsior Credit Agricole Credit Facility STI Expedite CSSC Lease Financing STI Nautilus CSSC Lease Financing STI Gallantry CSSC Lease Financing STI Goal CSSC Lease Financing STI Guard CSSC Lease Financing STI Guide CSSC Lease Financing STI Gauntlet CSSC Lease Financing STI Gladiator CSSC Lease Financing STI Gratitude ING Credit Facility STI Black Hawk ING Credit Facility STI Rotherhithe ING Credit Facility STI Pontiac ING Credit Facility STI Osceola ING Credit Facility STI Notting Hill ING Credit Facility STI Jermyn ING Credit Facility STI Lombard ING Credit Facility STI Grace KEXIM Credit Facility STI Acton KEXIM Credit Facility STI Brixton KEXIM Credit Facility STI Broadway KEXIM Credit Facility STI Camden KEXIM Credit Facility STI Clapham KEXIM Credit Facility STI Comandante KEXIM Credit Facility STI Condotti KEXIM Credit Facility STI Elysees KEXIM Credit Facility STI Finchley KEXIM Credit Facility STI Fulham KEXIM Credit Facility STI Hackney KEXIM Credit Facility STI Madison KEXIM Credit Facility STI Orchard KEXIM Credit Facility STI Park KEXIM Credit Facility STI Pimlico KEXIM Credit Facility STI Poplar KEXIM Credit Facility STI Sloane KEXIM Credit Facility STI Veneto Ocean Yield Lease Financing STI Sanctity Ocean Yield Lease Financing STI Steadfast Ocean Yield Lease Financing STI Supreme Ocean Yield Lease Financing STI Symphony Vessels under construction We did not enter into any contracts for the construction of newbuilding vessels during the years ended December 31, 2018 and 2017 . As of December 31, 2018 , we had no newbuilding product tanker orders. As of December 31, 2017, we had two MR newbuilding product tanker orders for an aggregate purchase price of $75.8 million , of which $52.3 million in cash was paid as of that date, which included the final installment payment of $23.5 million for STI Esles II , which was paid in December 2017 in advance of its delivery in January 2018. Additionally, we made the final installment of $23.5 million for the delivery of STI Jardins in January 2018 . Capitalized interest In accordance with IAS 23 “Borrowing Costs,” applicable interest costs are capitalized during the period that vessels are under construction. For the years ended December 31, 2018 and 2017 , we capitalized interest expense for the vessels under construction of $0.2 million and $4.2 million , respectively. The capitalization rate used to determine the amount of borrowing costs eligible for capitalization was 5.7% and 4.7% for each of the years ended December 31, 2018 and 2017, respectively. We cease capitalizing interest when the vessels reach the location and condition necessary to operate in the manner intended by management. A rollforward of activity within vessels under construction is as follows: In thousands of U.S. dollars Balance as of January 1, 2017 $ 137,917 Installment payments and other capitalized expenses 252,977 Capitalized interest 4,194 Transferred to operating vessels and drydock (339,712 ) Balance as of December 31, 2017 $ 55,376 Installment payments and other capitalized expenses 25,452 Capitalized interest 157 Transferred to operating vessels and drydock (80,985 ) Balance as of December 31, 2018 $ —

Vessels under construction

Vessels under construction	12 Months Ended
	Dec. 31, 2018
Property, plant and equipment [abstract]
Vessels under construction	Vessels Operating vessels and drydock In thousands of U.S. dollars Vessels Drydock Total Cost As of January 1, 2018 4,389,648 82,888 4,472,536 Additions (1) 79,454 4,964 84,418 Write-offs (2) — (1,500 ) (1,500 ) As of December 31, 2018 4,469,102 86,352 4,555,454 Accumulated depreciation and impairment As of January 1, 2018 (347,703 ) (34,739 ) (382,442 ) Charge for the period (158,740 ) (17,983 ) (176,723 ) Write-offs (2) — 1,500 1,500 As of December 31, 2018 (506,443 ) (51,222 ) (557,665 ) Net book value As of December 31, 2018 $ 3,962,659 $ 35,130 $ 3,997,789 Cost As of January 1, 2017 $ 3,126,790 $ 60,089 $ 3,186,879 Additions (3) 333,338 12,667 346,005 Vessels acquired in merger with NPTI (4) 1,113,618 17,632 1,131,250 Disposal of vessels (5) (184,098 ) (3,750 ) (187,848 ) Write-offs (6) — (3,750 ) (3,750 ) As of December 31, 2017 4,389,648 82,888 4,472,536 Accumulated depreciation and impairment As of January 1, 2017 (246,210 ) (27,415 ) (273,625 ) Charge for the period (127,369 ) (14,049 ) (141,418 ) Disposal of vessels (5) 25,876 2,975 28,851 Write-offs (6) — 3,750 3,750 As of December 31, 2017 (347,703 ) (34,739 ) (382,442 ) Net book value As of December 31, 2017 $ 4,041,945 $ 48,149 $ 4,090,094 (1) Additions in 2018 primarily relate to (i) the deliveries of STI Esles II and STI Jardins and corresponding calculations of notional drydock on these vessels and (ii) drydock costs incurred on certain of our vessels. (2) Represents the write-off of the notional drydock costs of STI Fontvieille and STI Ville which were drydocked in 2018. (3) Additions in 2017 primarily relate to (i) the deliveries of eight newbuilding vessels and corresponding calculations of notional drydock on these vessels and (ii) drydock costs incurred on certain of our vessels. (4) Represents the fair value of the vessels acquired in the Merger with NPTI as described in Note 2. (5) Represents the net book value of (i) STI Sapphire and STI Emerald, which were sold during the year ended December 31, 2017 and (ii) STI Beryl , STI Le Rocher and STI Larvotto, which were sold and leased back during the year ended December 31, 2017 . These transactions are further described below. (6) Represents the write-off of the notional drydock costs of STI Amber, STI Topaz, STI Ruby, STI Garnet and STI Onyx which were drydocked in 2017. 2018 Activity We took delivery of the following newbuilding vessels during the year ended December 31, 2018 resulting in an increase of $81.0 million in Vessels from December 31, 2017 : Month Vessel Name Delivered Type 1 STI Esles II January 2018 MR 2 STI Jardins January 2018 MR Additionally, we incurred drydock costs during the year ended December 31, 2018. These primarily consisted of: • S TI Fontvieille and STI Ville, which were drydocked in accordance with their scheduled, class required special survey during 2018 for an aggregate cost of $1.9 million and 46 offhire days. • STI Duchessa and STI Opera, which were drydocked in accordance with their class required special survey in December 2018 and these vessels completed these surveys in January 2019. $0.7 million of drydock costs relating to these vessels were incurred during the year ended December 31, 2018. • $0.9 million of drydock costs incurred for vessels that are expected to enter into drydock in 2019. Ballast Water Treatment Systems and Scrubbers In July 2018, we executed an agreement to purchase 55 ballast water treatment systems from an unaffiliated third-party supplier for total consideration of $36.2 million . These systems are expected to be installed over the next five years, as each respective vessel under the agreement is due for its International Oil Pollution Prevention, or IOPP, renewal survey. Additionally, we expect to retrofit the substantial majority of our vessels with exhaust gas cleaning systems, or scrubbers. The scrubbers will enable our ships to use high sulfur fuel oil, which is less expensive than low sulfur fuel oil, in certain parts of the world. From August 2018 through November 2018, we entered into agreements with two separate suppliers to retrofit a total of 77 of our tankers with such systems for total consideration of $116.1 million (which excludes installation costs). These systems are expected to be installed throughout 2019 and 2020. We also obtained options to retrofit additional tankers under these agreements. The following table is a timeline of future expected payments and dates for our commitments to purchase scrubbers and ballast water treatment systems as of December 31, 2018 (1) : As of December 31, Amounts in thousands of US dollars 2018 Less than 1 month $ 926 1-3 months 19,481 3 months to 1 year 93,188 1-5 years 18,279 5+ years — Total $ 131,874 (1) These amounts are subject to change as installation times are finalized. The amounts presented exclude installation costs. 2017 Activity We took delivery of the following newbuilding vessels during the year ended December 31, 2017 resulting in an increase of $346.0 million in Vessels from December 31, 2016 : Month Vessel Name Delivered Type 1 STI Selatar February 2017 LR2 2 STI Rambla March 2017 LR2 3 STI Galata March 2017 MR 4 STI Bosphorus April 2017 MR 5 STI Leblon July 2017 MR 6 STI La Boca July 2017 MR 7 STI San Telmo September 2017 MR 8 STI Donald C Trauscht October 2017 MR Additionally, five of the Company's 2012 built MR product tankers, STI Amber, STI Topaz, STI Ruby, STI Garnet and STI Onyx , were drydocked in accordance with their scheduled, class required special survey during 2017. These vessels were offhire for an aggregate of 102 days and the aggregate drydock cost was $6.4 million . Vessel Sales In April 2017, we executed agreements with Bank of Communications Financial Leasing Co., Ltd. (the “Buyers”) to sell and leaseback, on a bareboat basis, three 2013 built MR product tankers, STI Beryl , STI Le Rocher and STI Larvotto . The selling price was $29.0 million per vessel, and we agreed to bareboat charter-in these vessels for a period of up to eight years for $8,800 per day per vessel. Each bareboat agreement has been accounted for as an operating lease. We have the option to purchase these vessels beginning at the end of the fifth year of the agreements through the end of the eighth year of the agreements. Additionally, a deposit of $4.35 million per vessel was retained by the buyers and will either be applied to the purchase price of the vessel if a purchase option is exercised, or refunded to us at the expiration of the agreements. These sales closed in April 2017 and as a result, all amounts outstanding under our 2011 Credit Facility of $42.2 million were repaid and a $14.2 million loss on sales of vessels was recorded during the year ended December 31, 2017. In April 2017, we executed an agreement with an unrelated third party to sell two 2013 built, MR product tankers, STI Emerald and STI Sapphire , for a sales price of $56.4 million in aggregate. The sale of STI Emerald closed in June 2017, and the sale of STI Sapphire closed in July 2017. As a result of this transaction, we recorded an aggregate loss on sale of $9.1 million . Additionally, we repaid the aggregate outstanding debt for both vessels of $27.6 million on the BNP Paribas Credit Facility in June 2017 and wrote-off $0.5 million of deferred financing fees as a result of this repayment. Collateral agreements Vessels with an aggregate carrying value of $3,997.8 million at December 31, 2018 , have been pledged as collateral under the terms of our secured debt or have been sold under the terms of our lease financing arrangements. The below table is a summary of these vessels, along with the respective borrowing or lease financing facility (which are described in Note 13) as of December 31, 2018 : Credit Facility Vessel Name $116.0 Million Lease Financing STI Oxford $116.0 Million Lease Financing STI Selatar $116.0 Million Lease Financing STI Gramercy $116.0 Million Lease Financing STI Queens $157.5 Million Lease Financing STI Alexis $157.5 Million Lease Financing STI Benicia $157.5 Million Lease Financing STI Duchessa $157.5 Million Lease Financing STI Mayfair $157.5 Million Lease Financing STI San Antonio $157.5 Million Lease Financing STI St. Charles $157.5 Million Lease Financing STI Yorkville 2017 Credit Facility STI Galata 2017 Credit Facility STI Bosphorus 2017 Credit Facility STI Leblon 2017 Credit Facility STI La Boca 2017 Credit Facility STI San Telmo 2017 Credit Facility STI Donald C Trauscht 2017 Credit Facility STI Esles II 2017 Credit Facility STI Jardins 2018 CMB Lease Financing STI Milwaukee 2018 CMB Lease Financing STI Battery 2018 CMB Lease Financing STI Tribeca 2018 CMB Lease Financing STI Bronx 2018 CMB Lease Financing STI Manhattan 2018 CMB Lease Financing STI Seneca 2018 NIBC Credit Facility STI Memphis 2018 NIBC Credit Facility STI Soho ABN AMRO / K-Sure Credit Facility STI Precision ABN AMRO / K-Sure Credit Facility STI Prestige ABN AMRO / SEB Credit Facility STI Hammersmith ABN AMRO / SEB Credit Facility STI Westminster ABN AMRO / SEB Credit Facility STI Winnie ABN AMRO / SEB Credit Facility STI Lauren ABN AMRO / SEB Credit Facility STI Connaught ABN AMRO Credit Facility STI Spiga ABN AMRO Credit Facility STI Savile Row ABN AMRO Credit Facility STI Kingsway ABN AMRO Credit Facility STI Carnaby AVIC Lease Financing STI Fontvieille AVIC Lease Financing STI Ville AVIC Lease Financing STI Brooklyn AVIC Lease Financing STI Rose AVIC Lease Financing STI Rambla BCFL Lease Financing (LR2s) STI Solace BCFL Lease Financing (LR2s) STI Solidarity BCFL Lease Financing (LR2s) STI Stability BCFL Lease Financing (MRs) STI Amber BCFL Lease Financing (MRs) STI Topaz BCFL Lease Financing (MRs) STI Ruby BCFL Lease Financing (MRs) STI Garnet BCFL Lease Financing (MRs) STI Onyx China Huarong Lease Financing STI Opera China Huarong Lease Financing STI Venere China Huarong Lease Financing STI Virtus China Huarong Lease Financing STI Aqua China Huarong Lease Financing STI Dama China Huarong Lease Financing STI Regina Citibank / K-Sure Credit Facility STI Excellence Citibank / K-Sure Credit Facility STI Executive Citibank / K-Sure Credit Facility STI Experience Citibank / K-Sure Credit Facility STI Express CMB Lease Financing STI Pride CMB Lease Financing STI Providence COSCO Shipping Lease Financing STI Battersea COSCO Shipping Lease Financing STI Wembley COSCO Shipping Lease Financing STI Texas City COSCO Shipping Lease Financing STI Meraux Credit Agricole Credit Facility STI Exceed Credit Agricole Credit Facility STI Excel Credit Agricole Credit Facility STI Excelsior Credit Agricole Credit Facility STI Expedite CSSC Lease Financing STI Nautilus CSSC Lease Financing STI Gallantry CSSC Lease Financing STI Goal CSSC Lease Financing STI Guard CSSC Lease Financing STI Guide CSSC Lease Financing STI Gauntlet CSSC Lease Financing STI Gladiator CSSC Lease Financing STI Gratitude ING Credit Facility STI Black Hawk ING Credit Facility STI Rotherhithe ING Credit Facility STI Pontiac ING Credit Facility STI Osceola ING Credit Facility STI Notting Hill ING Credit Facility STI Jermyn ING Credit Facility STI Lombard ING Credit Facility STI Grace KEXIM Credit Facility STI Acton KEXIM Credit Facility STI Brixton KEXIM Credit Facility STI Broadway KEXIM Credit Facility STI Camden KEXIM Credit Facility STI Clapham KEXIM Credit Facility STI Comandante KEXIM Credit Facility STI Condotti KEXIM Credit Facility STI Elysees KEXIM Credit Facility STI Finchley KEXIM Credit Facility STI Fulham KEXIM Credit Facility STI Hackney KEXIM Credit Facility STI Madison KEXIM Credit Facility STI Orchard KEXIM Credit Facility STI Park KEXIM Credit Facility STI Pimlico KEXIM Credit Facility STI Poplar KEXIM Credit Facility STI Sloane KEXIM Credit Facility STI Veneto Ocean Yield Lease Financing STI Sanctity Ocean Yield Lease Financing STI Steadfast Ocean Yield Lease Financing STI Supreme Ocean Yield Lease Financing STI Symphony Vessels under construction We did not enter into any contracts for the construction of newbuilding vessels during the years ended December 31, 2018 and 2017 . As of December 31, 2018 , we had no newbuilding product tanker orders. As of December 31, 2017, we had two MR newbuilding product tanker orders for an aggregate purchase price of $75.8 million , of which $52.3 million in cash was paid as of that date, which included the final installment payment of $23.5 million for STI Esles II , which was paid in December 2017 in advance of its delivery in January 2018. Additionally, we made the final installment of $23.5 million for the delivery of STI Jardins in January 2018 . Capitalized interest In accordance with IAS 23 “Borrowing Costs,” applicable interest costs are capitalized during the period that vessels are under construction. For the years ended December 31, 2018 and 2017 , we capitalized interest expense for the vessels under construction of $0.2 million and $4.2 million , respectively. The capitalization rate used to determine the amount of borrowing costs eligible for capitalization was 5.7% and 4.7% for each of the years ended December 31, 2018 and 2017, respectively. We cease capitalizing interest when the vessels reach the location and condition necessary to operate in the manner intended by management. A rollforward of activity within vessels under construction is as follows: In thousands of U.S. dollars Balance as of January 1, 2017 $ 137,917 Installment payments and other capitalized expenses 252,977 Capitalized interest 4,194 Transferred to operating vessels and drydock (339,712 ) Balance as of December 31, 2017 $ 55,376 Installment payments and other capitalized expenses 25,452 Capitalized interest 157 Transferred to operating vessels and drydock (80,985 ) Balance as of December 31, 2018 $ —

Carrying values of vessels, ves

Carrying values of vessels, vessels under construction and goodwill	12 Months Ended
	Dec. 31, 2018
Impairment Of Assets [Abstract]
Carrying values of vessels, vessels under construction and goodwill	Carrying values of vessels, vessels under construction and goodwill At each balance sheet date, we review the carrying amounts of our goodwill, vessels and related drydock costs to determine if there is any indication that these amounts have suffered an impairment loss. If such indication exists, the recoverable amount of the vessels and related drydock costs is estimated in order to determine the extent of the impairment loss (if any). Recoverable amount is the higher of fair value less costs to sell and value in use. As part of this evaluation, we consider certain indicators of potential impairment, such as market conditions including forecast time charter rates and values for second hand product tankers, discounted projected vessel operating cash flows and the Company’s overall business plans. Goodwill arising from the September Closing has been allocated to the cash generating units within each of the respective operating segments that are expected to benefit from the synergies of the Merger (LR2s and LR1s). The carrying values of goodwill allocated to these segments were $8.9 million for the LR2 segment and $2.6 million for the LR1 segment. Goodwill is not amortized and is tested annually (or more frequently, if impairment indicators arise) by comparing the aggregate carrying amount of the cash generating units in each respective operating segment, plus the allocated goodwill, to their recoverable amounts. Recoverable amount is the higher of the fair value less cost to sell (determined by taking into consideration two independent broker valuations for each vessel within each segment) and value in use. In assessing value in use, the estimated future cash flows of the operating segment are discounted to their present value using a pre-tax discount rate that reflects current market assessments of the time value of money and the risks specific to the operating segment for which the estimates of future cash flows have not been adjusted. This test was performed in connection with the assessment of the carrying amount of our vessels and related drydock costs below, and the test did not result in an impairment charge to goodwill at December 31, 2018. At December 31, 2018 , we reviewed the carrying amount of our vessels to determine whether there was an indication that these assets had suffered an impairment. First, we assess the fair value less the cost to sell our vessels taking into consideration vessel valuations from leading, independent and internationally recognized ship brokers. We then compare that estimate of market values (less an estimate of selling costs) to each vessel’s carrying value and, if the carrying value exceeds the vessel’s market value, an indicator of impairment exists. We also consider sustained weakness in the product tanker market as an impairment indicator. If we determined that impairment indicators exist, then we prepared a value in use calculation where we estimated each vessel’s future cash flows. These estimates were primarily based on (i) a combination of the latest forecast, published time charter rates for the next three years and a 2.47% growth rate (which is based on published historical and forecast inflation rates) in freight rates in each period thereafter and (ii) our best estimate of vessel operating expenses and drydock costs, which are based on our most recent forecasts for the next three years and a 2.47% growth rate in each period thereafter. These cash flows were then discounted to their present value using a pre-tax discount rate of 8.29% . The results of these tests were as follows: At December 31, 2018 , we owned or financed leased 109 vessels in our fleet: • 34 of our owned or financed leased vessels in our fleet had fair values less costs to sell greater than their carrying amount. As such, there were no indicators of impairment for these vessels. • 75 of our owned or finance leased vessels in our fleet had fair values less costs to sell less than their carrying amount. We prepared a value in use calculation for each of these vessels which resulted in no impairment being recognized. At December 31, 2017 , we owned or financed leased 107 vessels in our fleet and two vessels under construction: • Eight of our owned or financed leased vessels in our fleet had fair values less costs to sell greater than their carrying amount. As such, there were no indicators of impairment for these vessels. • 99 of our owned or finance leased vessels in our fleet had fair values less costs to sell less than their carrying amount. We prepared a value in use calculation for each of these vessels which resulted in no impairment being recognized. • We did not obtain independent broker valuations for our two vessels under construction. To assess their carrying values for impairment, we prepared value in use calculations for each vessel which resulted in no impairment being recognized. The impairment test that we conduct is most sensitive to variances in the discount rate and future time charter rates. • Based on the sensitivity analysis performed for December 31, 2018 , a 1.0% increase in the discount rate would result in one LR2 vessel being impaired for an aggregate $0.3 million loss. Alternatively, a 5% decrease in forecasted time charter rates would result in two LR2 vessels being impaired for an aggregate $0.4 million loss. • Based on the sensitivity analysis performed for December 31, 2017 , a 1.0% increase in the discount rate would result in four MR vessels being impaired for an aggregate $2.3 million loss. Alternatively, a 5% decrease in forecasted time charter rates would also result in thirteen Handymax and MR vessels being impaired for an aggregate $6.9 million loss.

Other non-current assets

Other non-current assets	12 Months Ended
	Dec. 31, 2018
Subclassifications of assets, liabilities and equities [abstract]
Other non-current assets	Other non-current assets At December 31, In thousands of U.S. dollars 2018 2017 Scorpio LR2 Pool Ltd. pool working capital contributions (1) $ 31,450 $ 28,050 Scorpio Handymax Tanker Pool Ltd. pool working capital contributions (2) 4,923 6,751 Scorpio LR1 Pool Ltd. pool working capital contributions (1) 6,600 6,600 Working capital contributions to Scorpio Pools 42,973 41,401 Deposits for exhaust gas cleaning system ('scrubbers') (3) 12,221 — Seller's credit on lease financed vessels (4) 9,087 8,581 Deposits for ballast water treatment systems (5) 6,365 — Investment in ballast water treatment system supplier (5) 1,751 — Capitalized loan fees — 582 Deferred drydock costs on bareboat chartered-in vessels (6) 2,813 120 $ 75,210 $ 50,684 (1) Upon entrance into the Scorpio LR2 and LR1 Pools, all vessels are required to make initial working capital contributions of both cash and bunkers. Initial working capital contributions are repaid, without interest, upon a vessel’s exit from the pool. Bunkers on board a vessel exiting the pool are credited against such repayment at the actual invoice price of the bunkers. For all owned vessels, we assume that these contributions will not be repaid within 12 months and are thus classified as non-current within Other Assets on the consolidated balance sheets. For time chartered-in vessels we classify the amounts as current (within accounts receivable) or non-current (within Other Assets) according to the expiration of the contract. (2) Upon entrance into the Scorpio Handymax Tanker Pool, all vessels are required to make initial working capital contributions of both cash and bunkers. Initial working capital contributions are repaid, without interest, upon a vessel's exit from each pool no later than six months after the exit date. Bunkers on board a vessel exiting the pool are credited against such repayment at the actual invoice price of the bunkers. For all owned vessels, we assume that these contributions will not be repaid within 12 months and are thus classified as non-current within other assets on the consolidated balance sheets. For time chartered-in vessels we classify the amounts as current (within Accounts Receivable) or non-current (within Other Assets) according to the expiration of the contract. (3) From August 2018 through November 2018, we entered into agreements with two separate suppliers to retrofit a total of 77 of our tankers with scrubbers for total consideration of $116.1 million (which excludes installation costs). These scrubbers are expected to be installed throughout 2019 and 2020. Deposits of $12.2 million were made as part of these agreements during the year ended December 31, 2018 . (4) The seller's credit on lease financed vessels represents the present value of the deposits of $4.35 million per vessel ( $13.1 million in aggregate) that was retained by the buyer as part of the sale and operating leasebacks of STI Beryl , STI Le Rocher and STI Larvotto , which is described in Note 13. This deposit will either be applied to the purchase price of the vessel if a purchase option is exercised, or refunded to us at the expiration of the agreement. The present value of this deposit has been calculated based on the interest rate that is implied in the lease, and the carrying value will accrete over the life of the lease, through interest income, until expiration. $0.5 million and $0.3 million was recorded as interest income as part of these agreements during years ended December 31, 2018 and 2017, respectively. (5) In July 2018, we executed an agreement to purchase 55 ballast water treatment systems from an unaffiliated third party supplier for total consideration of $36.2 million . These systems are expected to be installed over the next five years , as each respective vessel under the agreement is due for its International Oil Pollution Prevention, or IOPP, renewal survey. Upon entry into this agreement, we also obtained a minority equity interest in this supplier for no additional consideration. We have determined that of the total consideration of $36.2 million , $1.8 million is attributable to the minority equity interest. During the year ended December 31, 2018 , an aggregate deposit of $8.1 million was made as part of the entry into this agreement, and we have recorded $1.8 million of this amount as the aforementioned minority equity interest, which is being accounted for as a financial asset under IFRS 9. Under the terms of the agreement, we were granted a put option, exercisable after one year following the date of the agreement, whereby we can put the shares back to the supplier at a predetermined price. The supplier was also granted a call option, exercisable two years following the date of the agreement, whereby it can buy the shares back from us at a predetermined price, which is greater than the strike price of the put option. Given that the value of this investment is contractually limited to the strike prices set forth in these options, we have recorded the value of the investment at the put option strike price, or $1.8 million in aggregate. The difference in the aggregate value of the investment, based on the spread between the exercise prices of the put and call options, is $0.6 million . We consider this value to be a Level 3 fair value measurement, as this supplier is a private company, and the value has been determined based on unobservable market data (i.e. the proceeds that we would receive if we exercised our put option in full). (6) Represents deferred drydock costs that have been incurred on certain of our bareboat chartered-in vessels that are being accounted for as operating leases. These costs are being amortized over the shorter of the lease term, or the time period until the next scheduled drydock.

Restricted Cash

Restricted Cash	12 Months Ended
	Dec. 31, 2018
Subclassifications of assets, liabilities and equities [abstract]
Restricted Cash	Restricted Cash Restricted cash for the year ended December 31, 2018 primarily represents debt service reserve accounts that must be maintained as part of the terms and conditions of our 2017 Credit Facility, Citibank/K-Sure Credit Facility, ABN AMRO/K-Sure Credit Facility, and the lease financing arrangements with CMB Financial Leasing Co. Ltd and Bank of Communications Financial Leasing (LR2s). The funds in these accounts will be applied against the principal balance of these facilities upon maturity. These facilities are further described in Note 13.

Accounts payable

Accounts payable	12 Months Ended
	Dec. 31, 2018
Subclassifications of assets, liabilities and equities [abstract]
Accounts payable	Accounts payable The following table depicts the components of our accounts payable as of December 31, 2018 and 2017 : At December 31, In thousands of U.S. dollars 2018 2017 Scorpio Ship Management S.A.M. (SSM) $ 545 $ 766 Scorpio Services Holding Limited (SSH) 409 190 Scorpio Commercial Management S.A.M. (SCM) 389 186 Amounts due to a port agent - related party 62 60 Scorpio LR1 Pool Limited 51 22 Scorpio Handymax Tanker Pool Limited 12 — Scorpio LR2 Pool Limited 2 365 Insurance liabilities - related party — 2,163 Scorpio Aframax Pool Limited — 74 Accounts payable to related parties 1,470 3,826 Suppliers 10,395 9,218 $ 11,865 $ 13,044 The majority of accounts payable are settled with a cash payment within 90 days. No interest is charged on accounts payable. We consider that the carrying amount of accounts payable approximates fair value.

Accrued expenses

Accrued expenses	12 Months Ended
	Dec. 31, 2018
Subclassifications of assets, liabilities and equities [abstract]
Accrued expenses	Accrued expenses The following table depicts the components of our accrued expenses as of December 31, 2018 and 2017 : At December 31, In thousands of U.S. dollars 2018 2017 Accrued expenses to a related party port agent $ 398 $ 35 Accrued expenses to SSM 287 — Accrued expenses to a related party insurance broker — 26 Accrued expenses to SCM — 5 Accrued expenses to related parties 685 66 Suppliers 9,147 16,533 Accrued interest 9,202 13,078 Accrued short-term employee benefits 2,430 2,325 Accrued transaction costs relating to the Merger — 34 Other accrued expenses 1,508 802 $ 22,972 $ 32,838

Current and long-term debt

Current and long-term debt	12 Months Ended
	Dec. 31, 2018
Financial Instruments [Abstract]
Current and long-term debt	Current and long-term debt The following is a breakdown of the current and non-current portion of our debt outstanding as of December 31, 2018 and December 31, 2017 : At December 31, In thousands of U.S. dollars 2018 2017 Current portion (1) $ 297,934 $ 113,036 Finance lease (2) 114,429 50,146 Current portion of long-term debt 412,363 163,182 Non-current portion (3) 1,192,000 1,937,018 Finance lease (4) 1,305,952 666,993 $ 2,910,315 $ 2,767,193 (1) The current portion at December 31, 2018 was net of unamortized deferred financing fees of $2.1 million . The current portion at December 31, 2017 was net of unamortized deferred financing fees of $1.7 million . (2) The current portion at December 31, 2018 was net of unamortized deferred financing fees of $0.8 million . The current portion at December 31, 2017 was net of unamortized deferred financing fees of $0.1 million . (3) The non-current portion at December 31, 2018 was net of unamortized deferred financing fees of $12.0 million . The non-current portion at December 31, 2017 was net of unamortized deferred financing fees of $33.4 million . (4) The non-current portion at December 31, 2018 was net of unamortized deferred financing fees of $8.7 million . The non-current portion at December 31, 2017 was net of unamortized deferred financing fees of $1.1 million . The following is a rollforward of the activity within debt (current and non-current), by facility, for December 31, 2018 : Activity Balance as of December 31, 2018 consists of: In thousands of U.S. dollars Carrying Value as of December 31, 2017 Drawdowns Repayments Other Activity (1) Carrying Value as of December 31, 2018 Current Non-Current K-Sure Credit Facility $ 239,919 $ — $ (239,919 ) $ — $ — $ — $ — KEXIM Credit Facility 332,950 — (33,650 ) — 299,300 33,650 265,650 Credit Suisse Credit Facility 53,488 — (53,488 ) — — — — ABN AMRO Credit Facility 113,312 — (12,804 ) — 100,508 8,554 91,954 ING Credit Facility 109,844 38,675 (4,343 ) — 144,176 12,737 131,439 BNP Paribas Credit Facility 42,550 — (42,550 ) — — — — Scotiabank Credit Facility 28,860 — (28,860 ) — — — — NIBC Credit Facility 34,712 — (34,712 ) — — — — 2018 NIBC Credit Facility — 35,658 (807 ) — 34,851 3,230 31,621 2016 Credit Facility 195,979 — (195,979 ) — — — — 2017 Credit Facility 141,814 21,450 (18,499 ) — 144,765 13,265 131,500 HSH Credit Facility 15,416 — (15,416 ) — — — — DVB 2017 Credit Facility 78,440 — (78,440 ) — — — — Credit Agricole Credit Facility 103,914 — (8,568 ) 865 96,211 7,745 88,466 ABN / K-Sure Credit Facility 49,908 — (3,851 ) 775 46,832 3,106 43,726 Citibank / K-Sure Credit Facility 104,052 — (8,416 ) 1,973 97,609 6,524 91,085 ABN / SEB Credit Facility — 120,575 (5,750 ) — 114,825 11,500 103,325 Ocean Yield Lease Financing 169,016 — (10,458 ) 199 158,757 10,515 148,242 CMBFL Lease Financing 65,915 — (4,908 ) 191 61,198 4,725 56,473 BCFL Lease Financing (LR2s) 104,187 — (7,332 ) 599 97,454 7,005 90,449 CSSC Lease Financing 269,965 — (17,309 ) (824 ) 251,832 18,104 233,728 BCFL Lease Financing (MRs) 109,232 — (10,401 ) — 98,831 11,021 87,810 2018 CMBFL Lease Financing — 141,600 (5,057 ) — 136,543 10,114 126,429 $116.0 Million Lease Financing — 114,840 (2,166 ) — 112,674 6,633 106,041 AVIC Lease Financing — 145,000 (5,897 ) — 139,103 11,794 127,309 China Huarong Lease Financing — 144,000 (6,750 ) — 137,250 13,500 123,750 $157.5 Million Lease Financing — 157,500 (5,414 ) — 152,086 14,143 137,943 COSCO Lease Financing — 88,000 (3,850 ) — 84,150 7,700 76,450 Unsecured Senior Notes Due 2020 53,750 — — — 53,750 — 53,750 Unsecured Senior Notes Due 2019 57,500 — — — 57,500 57,500 — Convertible Notes due 2019 (2) 328,717 — — (186,537 ) 142,180 142,180 — Convertible Notes due 2022 (2) — — — 171,469 171,469 — 171,469 $ 2,803,440 $ 1,007,298 $ (865,594 ) $ (11,290 ) $ 2,933,854 $ 415,245 $ 2,518,609 Less: deferred financing fees (36,247 ) (13,871 ) — 26,579 (23,539 ) (2,882 ) (20,657 ) Total $ 2,767,193 $ 993,427 $ (865,594 ) $ 15,289 $ 2,910,315 $ 412,363 $ 2,497,952 (1) Relates to non-cash accretion or amortization of (i) obligations assumed as part of the Merger with NPTI, which were recorded at fair value on the closing date (described below) and (ii) accretion of our Convertible Notes due 2019 and Convertible Notes due 2022. (2) In May 2018 and July 2018, we exchanged $188.5 million and $15.0 million (out of $348.5 million outstanding), respectively, in aggregate principal amount of our Convertible Notes due 2019 for $188.5 million and $15.0 million , respectively, in aggregate principal amount of the Company's new 3.0% Convertible Senior Notes due 2022. Secured Debt Each of our secured credit facilities contains financial and restrictive covenants, which require us to, among other things, comply with certain financial tests (described below); deliver quarterly and annual financial statements and annual projections; comply with restrictive covenants, including maintaining adequate insurances; comply with laws (including environmental laws and ERISA); and maintain flag and class of our vessels. Other such covenants may, among other things, restrict consolidations, mergers or sales of our assets; require us to obtain lender approval on changes in our vessel manager; limit our ability to place liens on our assets; limit our ability to incur additional indebtedness; prohibit us from paying dividends if there is a covenant breach under the loan or an event of default has occurred or would occur as a result of payment of such dividend; prohibit our transactions with affiliates. Furthermore, our debt agreements contain cross-default provisions that may be triggered if we default under the terms of any one of our financing agreements. These secured credit facilities may be secured by, among other things: • a first priority mortgage over the relevant collateralized vessels; • a first priority assignment of earnings, insurances and charters from the mortgaged vessels for the specific facility; • a pledge of earnings generated by the mortgaged vessels for the specific facility; and • a pledge of the equity interests of each vessel owning subsidiary under the specific facility. Minimum interest coverage ratio amendment In February and March 2018, we amended the ratio of EBITDA to net interest expense ratio financial covenant on our secured credit facilities (wherever applicable) for the quarters ended June 30, 2018, September 30, 2018 and December 31, 2018. Under this amendment, the ratio was reduced to greater than 1.50 to 1.00 from 2.50 to 1.00. These amendments have been accounted for as debt modifications. In September 2018, we entered into agreements with certain credit facility lenders to permanently remove the minimum interest coverage ratio financial covenants from the terms of those credit facilities where such covenants were in place. As a result, the Company is no longer required to maintain a ratio of EBITDA to net interest expense on any of its secured credit facilities or lease financing arrangements. As part of these agreements, and for certain of the facilities, the minimum threshold for the aggregate fair market value of the vessels as a percentage of the then aggregate principal amount of each facility was revised to be no less than the following: Facility Minimum ratio KEXIM Credit Facility 155% 2017 Credit Facility 155% ABN Credit Facility 145% through June 30, 2019, 150% thereafter Each of our secured credit facilities are described below. K-Sure Credit Facility In February 2014, we entered into a $458.3 million senior secured term loan facility which consisted of a $358.3 million tranche with a group of financial institutions that was 95% covered by Korea Trade Insurance Corporation, or the K-Sure Tranche , and a $100.0 million commercial tranche with a group of financial institutions led by DNB Bank ASA, or the Commercial Tranche. During the year ended December 31, 2018 , we repaid the outstanding balance of $239.9 million , as a result of the sale and leasebacks of STI Hammersmith , STI Winnie , STI Lauren , STI Connaught, STI Westminster, STI Tribeca , STI Bronx , STI Manhattan , STI Oxford , STI Gramercy, STI Queens, STI Brooklyn, STI Mayfair , STI Battersea , STI Rotherhithe and STI Notting Hill ( see sale leaseback facilities below). We wrote off an aggregate of $5.9 million of deferred financing fees as a result of the repayment of the outstanding balance. KEXIM Credit Facility In February 2014, we executed a senior secured term loan facility for $429.6 million , or the KEXIM Credit Facility, with a group of financial institutions led by DNB Bank ASA and Skandinaviska Enskilda Banken AB (publ) and from the Export-Import Bank of Korea, or KEXIM, a statutory juridical entity established under The Export-Import Bank of Korea Act of 1969, as amended, in the Republic of Korea. This KEXIM Credit Facility includes commitments from KEXIM of $300.6 million , or the KEXIM Tranche, and a group of financial institutions led by DNB Bank ASA and Skandinaviska Enskilda Banken AB (publ) of $129.0 million , or the Commercial Tranche. Drawdowns under the KEXIM Credit Facility occurred in connection with the delivery of 18 newbuilding vessels as specified in the loan agreement. In addition to KEXIM’s commitment of up to $300.6 million , KEXIM also provided an optional guarantee for a five -year amortizing note of $125.25 million , the proceeds of which reduced the $300.6 million KEXIM Tranche. These notes were issued on July 18, 2014 when Seven and Seven Ltd., an exempted company incorporated with limited liability under the laws of the Cayman Islands completed an offering of $125,250,000 in aggregate principal amount of floating rate guaranteed notes due 2019, or the KEXIM Notes, in a private offering to qualified institutional buyers pursuant to the Securities Act and in offshore transactions complying with Regulation S under the Securities Act. The KEXIM Notes were issued in connection with the KEXIM Tranche and reduced KEXIM's funding obligations and our borrowing costs under the KEXIM Tranche by 1.55% per year. Seven and Seven Ltd. is an unaffiliated company that was incorporated for the purpose of facilitating this transaction and servicing the bonds until maturity. Payment of 100% of all regularly scheduled installments of principal of, and interest on, the KEXIM Notes are guaranteed by KEXIM. The vessels in the loan are the collateral for the KEXIM Credit Facility, which includes the KEXIM Notes. The KEXIM Notes are currently listed on the Singapore Exchange Securities Trading Limited. The KEXIM Notes are not listed on any other securities exchange, listing authority or quotation system. The Commercial Tranche matures on the sixth anniversary of the delivery date of the last vessel specified under the loan (January 2021), and the KEXIM Tranche matures on the 12th anniversary of the weighted average delivery date of the vessels specified under the loan assuming the Commercial Tranche is refinanced through that date (September 2026). Repayments will be made in ten equal consecutive semi-annual repayment installments in accordance with a 15 -year repayment profile under the Commercial Tranche and a 12 -year repayment profile under the KEXIM Tranche (which includes the KEXIM Notes). Repayments under the KEXIM Tranche will first be applied to the KEXIM Notes until the maturity of those notes in September 2019 and all subsequent repayments will be applied to the remaining amounts outstanding under KEXIM Tranche until the maturity of that tranche in September 2026 (assuming the Commercial Tranche is refinanced through that date). Repayments commenced in March 2015 for the KEXIM Tranche and in July 2015 for the Commercial Tranche. Borrowings under the KEXIM Tranche bear interest at LIBOR plus an applicable margin of 3.25% . Borrowings under the Commercial Tranche bear interest at LIBOR plus an applicable margin of 3.25% from the effective date of the agreement to the fifth anniversary thereof and 3.75% thereafter until the maturity date in respect of the Commercial Tranche. Our KEXIM Credit Facility contains certain financial covenants which require us to maintain: • The ratio of net debt to total capitalization no greater than 0.60 to 1.00. • Consolidated tangible net worth of no less than $1.0 billion plus (i) 25% of cumulative positive net income (on a consolidated basis) for each fiscal quarter commencing on or after January 1, 2016 and (ii) 50% of the net proceeds of any new equity issues occurring on or after January 1, 2016. • Minimum liquidity of not less than the greater of $25.0 million or $500,000 per each owned vessel plus $250,000 per each time chartered-in vessel. • The minimum threshold for the aggregate fair market value of the vessels as a percentage of the then aggregate principal amount in the facility shall at all times be no less than 155% . The amounts outstanding relating to this facility (which includes the KEXIM Notes) as of December 31, 2018 and 2017 were $299.3 million and $333.0 million , respectively. We were in compliance with the financial covenants relating to this facility as of those dates. Credit Suisse Credit Facility In October 2015, we executed a senior secured term loan facility with Credit Suisse AG, Switzerland. The proceeds of this facility of $58.4 million were used to finance a portion of the purchase price of STI Selatar and STI Rambla . During the year ended December 31, 2018 , we repaid the outstanding balance of $53.5 million , as a result of the sale and leaseback of STI Selatar and STI Rambla. We wrote off an aggregate of $1.5 million of deferred financing fees as a result of the repayment. ABN AMRO Credit Facility In July 2015, we executed a senior secured term loan facility with ABN AMRO Bank N.V. and DVB Bank SE for up to $142.2 million . This facility was fully drawn in 2015 to partially finance the purchases of STI Savile Row, STI Kingsway and STI Carnaby and to refinance the existing indebtedness on STI Spiga. We refer to this credit facility as our ABN AMRO Credit Facility. Repayments under the ABN AMRO Credit Facility will be made in equal consecutive quarterly repayment installments in accordance with a 15 -year repayment profile. Repayments commenced three months after the drawdown date of each vessel. Each tranche matures on the fifth anniversary of the initial drawdown date and a balloon installment payment is due on the maturity date of each tranche. Borrowings under the ABN AMRO Credit Facility bear interest at LIBOR plus an applicable margin of 2.15% . Our ABN AMRO Credit Facility includes financial covenants that require us to maintain: • The ratio of net debt to total capitalization no greater than 0.60 to 1.00. • Consolidated tangible net worth of no less than $677.3 million plus (i) 25% of the cumulative positive net income (on a consolidated basis) for each fiscal quarter commencing on or after October 1, 2013 and (ii) 50% of the net proceeds of new equity issues occurring on or after October 1, 2013. • Minimum liquidity of not less than the greater of $25.0 million or $500,000 per each owned vessel. • The aggregate of the fair market value of the vessels provided as collateral under the facility shall at all times be no less than 145% of the then aggregate outstanding principal amount of the loans under the credit facility through June 30, 2019 and 150% thereafter. During the year ended December 31, 2018 , we made scheduled principal payments of $8.8 million and an unscheduled prepayment of $4.0 million on this credit facility. The amounts outstanding relating to this facility as of December 31, 2018 and 2017 were $100.5 million and $113.3 million , respectively. We were in compliance with the financial covenants relating to this facility as of those dates. ING Credit Facility In June 2015, we executed a senior secured term loan facility with ING Bank N.V., London Branch for a credit facility of up to $52.0 million . In September 2015, we amended and restated the facility to increase the borrowing capacity to $87.0 million , and in March 2016, we amended and restated the facility to further increase the borrowing capacity to $132.5 million . In June 2018, we executed another agreement to further increase the borrowing capacity to $171.2 million . The 2018 upsized portion of the loan facility was fully drawn in September 2018 and was used to refinance the existing outstanding indebtedness relating to one Handymax product tanker ( STI Rotherhithe ) and one MR product tanker ( STI Notting Hill ), which were previously financed under the Company’s K-Sure Credit Facility. Repayments on borrowings up to $132.5 million are being made in equal quarterly installments, in accordance with a 15 -year repayment profile, and a balloon installment payment due on the maturity dates of March 4, 2021 for STI Lombard and STI Osceola and June 24, 2022 for STI Grace, STI Jermyn, STI Black Hawk , STI Pontiac , STI Rotherhithe and STI Notting Hill . The 2018 upsized portion of the loan for STI Rotherhithe and STI Notting Hill will be repaid in equal quarterly installments of $1.0 million per quarter, in aggregate, for the first eight installments and $0.8 million per quarter, in aggregate, thereafter, with a balloon payment due upon the maturity date of June 24, 2022. Borrowings under the ING Credit Facility bear interest at LIBOR plus a margin of 1.95% per annum for the STI Lombard , STI Osceola, STI Grace, STI Jermyn, STI Black Hawk and STI Pontiac tranches. The STI Rotherhithe and STI Notting Hill tranches bear interest at LIBOR plus a margin of 2.4% per annum. Our ING Credit Facility includes financial covenants that require us to maintain: • The ratio of net debt to total capitalization no greater than 0.60 to 1.00. • Consolidated tangible net worth of not less than $1.0 billion plus (i) 25% of the positive consolidated net income for each fiscal quarter commencing on or after January 1, 2016 and (ii) 50% of the net proceeds of new equity issues occurring on or after January 1, 2016. • Minimum liquidity of not less than the greater of $25.0 million or $500,000 per each owned vessel plus $250,000 per each time chartered-in vessel. • The aggregate of the fair market value of the vessels provided as collateral under the facility shall at all times be no less than 160% of the then aggregate outstanding principal amount of the loans under the credit facility. The amounts outstanding relating to this facility as of December 31, 2018 and 2017 were $144.2 million and $109.8 million , respectively. We were in compliance with the financial covenants relating to this facility as of those dates. BNP Paribas Credit Facility In December 2015, we executed a senior secured term loan facility with BNP Paribas SA for up to $34.5 million , and in December 2016, we amended and restated the facility to increase the borrowing capacity by a further $27.6 million to $62.1 million . This upsized portion was drawn in January and February 2017 as part of the refinancing of the amounts borrowed for STI Sapphire and STI Emerald and fully repaid in June 2017 when these vessels were sold. Furthermore, in December 2017 we amended and restated the facility to increase the borrowing capacity by a further $13.2 million as part of the refinancing of the amounts borrowed for STI Soho (which was previously financed under our K-Sure Credit Facility). During the year ended December 31, 2018 , we repaid the outstanding balance of $42.6 million in connection with the refinancing of the amounts borrowed for STI Memphis , STI Battery and STI Soho. We wrote off an aggregate of $0.4 million of deferred financing fees as a result of these transactions. Scotiabank Credit Facility In June 2016, we executed a senior secured term loan facility with Scotiabank Europe plc. The loan facility was fully drawn in June 2016, and the proceeds of $33.3 million were used to refinance the existing indebtedness on STI Rose. In September 2018, we refinanced the outstanding amounts borrowed under this facility by repaying $28.9 million and drawing down $36.5 million from the AVIC Lease Financing agreement (described below). We wrote off an aggregate of $0.1 million of deferred financing fees as a result of this transaction. NIBC Credit Facility In June 2016, we executed a senior secured term loan facility with NIBC Bank N.V. This facility was fully drawn in July 2016, and the aggregate proceeds of $40.8 million were used to refinance the existing indebtedness on STI Ville and STI Fontvieille , which were previously financed under our 2013 Credit Facility. During the year ended December 31, 2018 , we repaid the outstanding balance of $34.7 million primarily in connection with the refinancing of the amounts borrowed for STI Fontvieille and STI Ville. We wrote off an aggregate of $0.5 million of deferred financing fees as a result of these transactions. 2018 NIBC Credit Facility In June 2018, we executed an agreement with NIBC Bank N.V. for a $35.7 million term loan facility. We refer to this facility as our 2018 NIBC Credit Facility. This facility was fully drawn in August 2018 and the proceeds were used to refinance the existing indebtedness related to two MR product tankers ( STI Memphis and STI Soho ), which were previously financed under the BNP Paribas Credit Facility. The loan facility has a final maturity of June 2021, bears interest at LIBOR plus a margin of 2.5% per annum and will be repaid in equal quarterly installments of $0.8 million , in aggregate, with a balloon payment due upon maturity. Our 2018 NIBC Credit Facility includes financial covenants that require us to maintain: • The ratio of net debt to total capitalization no greater than 0.60 to 1.00. • Consolidated tangible net worth of no less than $1.0 billion plus (i) 25% of the cumulative positive net income (on a consolidated basis) for each fiscal quarter commencing on or after January 1, 2016 and (ii) 50% of the net proceeds of new equity issuances occurring on or after January 1, 2016. • Minimum liquidity of not less than the greater of $25.0 million or $500,000 per each owned vessel plus $250,000 per each time chartered-in vessel. • The aggregate of the fair market value of the vessels provided as collateral under the facility shall be: 130% from the first drawdown date and ending on the second anniversary of the first drawdown date; 135% from the second anniversary of the first drawdown date and expiring on the fourth anniversary of the first drawdown date; and 140% at all times thereafter. The amount outstanding relating to this facility was $34.9 million as of December 31, 2018 , and we were in compliance with the financial covenants relating to this facility as of that date. 2016 Credit Facility In August 2016, we executed a senior secured loan facility with ABN AMRO Bank N.V., Nordea Bank Finland plc, acting through its New York branch, and Skandinaviska Enskilda Banken AB. The loan facility was fully drawn in September 2016, and the aggregate proceeds of $288.0 million were used to refinance the existing indebtedness on 16 MR product tankers, which were previously financed under the 2013 Credit Facility . This credit facility was comprised of a term loan up to $192.0 million and a revolver up to $96.0 million . During the year ended December 31, 2018 , we repaid the outstanding balance of $196.0 million as a result of the refinancing of the amounts borrowed for all of the vessels collateralized under this facility. We wrote off $2.2 million in deferred financing fees as a result of these transactions. 2017 Credit Facility In March 2017, we executed a senior secured term loan facility with a group of financial institutions led by Macquarie Bank Limited (London Branch) for up to $172.0 million , or the 2017 Credit Facility. The 2017 Credit Facility consists of five tranches, including two commercial tranches of $15.0 million and $25.0 million , a KEXIM Guaranteed Tranche of $48.0 million , a KEXIM Funded Tranche of $52.0 million , and a GIEK Guaranteed Tranche of $32.0 million . $145.5 million was drawn during the year ended December 31, 2017 to partially finance the purchases of seven newbuilding MRs and we made the following drawdown to partially finance the purchase of one newbuilding MR during the year ended December 31, 2018 : Drawdown amount (in millions of U.S. dollars) Drawdown date Collateral $ 21.5 January 2018 STI Jardins There are no remaining amounts available under this facility. Other key terms are as follows: • The first commercial tranche of $15.0 million has a final maturity of six years from the drawdown date of each vessel, bears interest at LIBOR plus a margin of 2.25% per annum, and has a 15 year repayment profile. • The second commercial tranche of $25.0 million has a final maturity of nine years from the drawdown date of each vessel (assuming KEXIM or GIEK have not exercised their option to call for prepayment of the KEXIM and GIEK funded and guaranteed tranches by the date falling two months prior to the maturity of the first commercial tranche and in the event that the first commercial tranche has not been extended), bears interest at LIBOR plus a margin of 2.25% per annum, and has a 15 year repayment profile. • The KEXIM Funded Tranche and GIEK Guaranteed Tranche have a final maturity of 12 years from the drawdown date of each vessel (assuming the commercial tranches are refinanced through that date), bear interest at LIBOR plus a margin of 2.15% per annum, and have a 12 year repayment profile. • The KEXIM Guaranteed Tranche has a final maturity of 12 years from the drawdown date of each vessel (assuming the commercial tranches are refinanced through that date), bears interest at LIBOR plus a margin of 1.60% per annum, and has a 12 year repayment profile. Our 2017 Credit Facility includes financial covenants that require us to maintain: • The ratio of net debt to total capitalization no greater than 0.60 to 1.00. • Consolidated tangible net worth of no less than $1.0 billion plus (i) 25% of the cumulative positive net income (on a consolidated basis) for each fiscal quarter commencing on or after January 1, 2016 and (ii) 50% of the net proceeds of new equity issues occurring on or after January 1, 2016. • Minimum liquidity of not less than the greater of $25.0 million or $500,000 per each owned vessel and $250,000 per each time chartered-in vessel. • Concurrent with the amendment on the ratio of EBITDA to net interest expense financial covenant in September 2018, the security cover ratio under the 2017 Credit Facility was revised such that the aggregate of the fair market value of the vessels provided as collateral under the facility shall at all times be no less than 155% of the then aggregate outstanding principal amount of the loans under the credit facility. Additionally, we have an aggregate of $5.0 million on deposit in a debt service reserve account as of December 31, 2018 in accordance with the terms and conditions of this facility. The funds deposited in this account are not freely available and will be released upon maturity. The balance in this account has been recorded as non-current Restricted Cash on our consolidated balance sheet as of December 31, 2018 . During the year ended December 31, 2018 , we made scheduled principal payments of $10.5 million and an unscheduled prepayment of $8.0 million on this credit facility. The amounts outstanding as of December 31, 2018 and 2017 were $144.8 million and $141.8 million . We were in compliance with the financial covenants relating to this facility as of those dates. HSH Nordbank Credit Facility In January 2017, we executed a senior secured credit facility agreement with HSH Nordbank AG for $31.1 million , or the HSH Credit Facility. In February 2017, we refinanced the outstanding indebtedness related to STI Duchessa and STI Onyx by repaying an aggregate of $23.7 million on our 2011 Credit Facility and drawing down an aggregate of $31.1 million from this facility. In October 2017, we repaid $13.8 million relating to the amounts borrowed for STI Onyx in connection with the sale and leaseback of this vessel. In September 2018, we repaid the remaining outstanding balance of $14.2 million in connection with the sale and leaseback of STI Duchessa. We wrote off $0.2 million in deferred financing fees as a result of this transaction. DVB 2017 Credit Facility In March 2017, we executed a senior secured term loan facility of up to $81.4 million with DVB Bank SE, or the DVB 2017 Credit Facility, to refinance our previous facility with DVB Bank SE. The DVB 2017 Credit Facility was used to refinance the existing indebtedness on four product tankers, STI Wembley, STI Milwaukee, STI Seneca and STI Alexis in April 2017. Additionally, during the year ended December 31, 2018 , we repaid the outstanding balance of $78.4 million primarily as a result of the refinancing of the amounts borrowed for these vessels. We wrote off $1.2 million in deferred financing fees as a result of the repayment of this facility. Credit Agricole Credit Facility As part of the closing of the NPTI Vessel Acquisition in June 2017, we assumed the outstanding indebtedness under NPTI's senior secured term loan with Credit Agricole. STI Excel, STI Excelsior, STI Expedite and STI Exceed are pledged as collateral under this facility. Repayments are being made in equal quarterly installments of $2.1 million in aggregate in accordance with a 15 -year repayment profile with a balloon payment due upon maturity, which occurs between November 2022 and February 2023 (depending on the vessel). The facility bears interest at LIBOR plus a margin of 2.75% . Our Credit Agricole Credit Facility includes financial covenants that require us to maintain: • The ratio of net debt to total capitalization no greater than 0.60 to 1.00. • Consolidated tangible net worth of no less than $1.0 billion plus (i) 25% of the cumulative positive net income (on a consolidated basis) for each fiscal quarter commencing on or after January 1, 2016 and (ii) 50% of the net proceeds of new equity issues occurring on or after January 1, 2016. • Minimum liquidity of not less than the greater of $25.0 million or $500,000 per each owned vessel and $250,000 per each time chartered-in vessel. • The aggregate of the fair market value of the vessels provided as collateral under the facility shall at all times be no less than 135% of the then aggregate outstanding principal amount of the loans under the credit facility. The carrying values of the indebtedness related to this facility (which includes the discount recorded to write the value down of its fair value as part of the purchase price allocation for the Merger) as of December 31, 2018 and 2017 were $96.2 million and $103.9 million . We were in compliance with the financial covenants relating to this facility as of those dates. ABN AMRO/K-Sure Credit Facility We assumed the outstanding indebtedness under NPTI's senior secured credit facility with ABN AMRO Bank N.V. and Korea Trade Insurance Corporation, or K-Sure, which we refer to as the ABN AMRO/K-Sure Credit Facility, upon the closing of the Merger with NPTI in September 2017. Two LR1s ( STI Precision and STI Prestige ) are collateralized under this facility and the facility consists of two separate tranches, an $11.5 million commercial tranche and a $43.8 million K-Sure tranche (which represents the amounts assumed from NPTI). The commercial tranche bears interest at LIBOR plus 2.75% , and the K-Sure tranche bears interest at LIBOR plus 1.80% . Repayments on the K-Sure tranche are being made in equal quarterly installments of $1.0 million in accordance with a 12 -year repayment profile from the date of delivery from the shipyard, with a balloon payment due upon maturity, and the commercial tranche is being repaid via a balloon payment upon maturity in September and November 2022 (depending on the vessel). The K-Sure tranche fully matures in September and November 2028 (depending on the vessel), and K-Sure has an option to require repayment upon the maturity of the commercial tranche if the commercial tranche is not refinanced by its maturity dates. Our ABN AMRO/K-Sure Credit Facility includes financial covenants that require us to maintain: • The ratio of net debt to total capitalization no greater than 0.60 to 1.00. • Consolidated tangible net worth no less than $1.0 billion plus (i) 25% of the cumulative positive net income (on a consolidated basis) for each fiscal quarter commencing on or after January 1, 2016 and (ii) 50% of the net proceeds of new equity issues occurring on or after January 1, 2016. • Minimum liquidity of not less than the greater of $25.0 million or $500,000 p

Derivative financial instrument

Derivative financial instruments	12 Months Ended
	Dec. 31, 2018
Financial Instruments [Abstract]
Derivative financial instruments	Derivative financial instruments Profit or loss sharing agreements In February 2015, we took delivery of an LR2 product tanker, Densa Crocodile , on a time charter-in arrangement for one year at $21,050 per day with an option to extend the charter for an additional year at $22,600 per day. We also entered into a profit and loss sharing agreement whereby 50% of the profits and losses relating to this vessel above or below the charterhire rate were shared with a third party who neither owns nor operates this vessel. The option to extend the charter was declared in February 2016, and the profit and loss agreement was also extended for the optional period. This agreement was settled in January 2017. This profit and loss agreement was recorded as a derivative, recorded at fair value through profit or loss, with any resultant gain or loss recognized in the consolidated statement of income or loss. Changes in fair value were recorded as unrealized gains or losses and actual earnings were recorded as realized gains or losses on derivative financial instruments within the consolidated statement of income or loss. The fair value of this instrument was determined by comparing published time charter rates to the charter rate in the agreement and discounting these cash flows to their present value. The following has been recorded as realized and unrealized gains or losses on our derivative financial instruments during the years ended December 31, 2017 and 2016 : Fair value adjustments Statement of income Amounts in thousands of U.S. dollars Realized (loss) / gain Unrealized gain / (loss) Recognized in equity Profit and loss agreement $ (116 ) $ — $ — Total year ended December 31, 2017 $ (116 ) $ — $ — Profit and loss agreement $ — $ 1,371 $ — Total year ended December 31, 2016 $ — $ 1,371 $ — There was no derivative activity during the year ended and as of December 31, 2018.

Segment reporting

Segment reporting	12 Months Ended
	Dec. 31, 2018
Operating Segments [Abstract]
Segment reporting	Segment reporting Information about our reportable segments for the years ended December 31, 2018 , 2017 and 2016 is as follows: For the year ended December 31, 2018 In thousands of U.S. dollars LR1/Panamax Handymax LR2 MR Reportable segments subtotal Corporate and eliminations Total Vessel revenue $ 47,722 $ 95,188 $ 203,414 $ 238,723 $ 585,047 $ — $ 585,047 Vessel operating costs (28,942 ) (48,249 ) (91,975 ) (111,294 ) (280,460 ) — (280,460 ) Voyage expenses (591 ) (440 ) (3,225 ) (890 ) (5,146 ) — (5,146 ) Charterhire — (19,223 ) (7,883 ) (32,526 ) (59,632 ) — (59,632 ) Depreciation (19,290 ) (18,190 ) (72,610 ) (66,633 ) (176,723 ) — (176,723 ) General and administrative expenses (1,173 ) (2,195 ) (3,790 ) (4,771 ) (11,929 ) (40,343 ) (52,272 ) Merger transaction related costs — — — — — (272 ) (272 ) Financial expenses — — — — — (186,628 ) (186,628 ) Loss on exchange of convertible notes — — — — — (17,838 ) (17,838 ) Financial income 111 16 22 515 664 3,794 4,458 Other expenses, net — — — — — (605 ) (605 ) Segment income or loss $ (2,163 ) $ 6,907 $ 23,953 $ 23,124 $ 51,821 $ (241,892 ) $ (190,071 ) For the year ended December 31, 2017 In thousands of U.S. dollars LR1/Panamax Handymax LR2 MR Reportable segments subtotal Corporate and eliminations Total Vessel revenue $ 22,573 $ 95,098 $ 157,123 $ 237,938 $ 512,732 $ — $ 512,732 Vessel operating costs (12,561 ) (50,145 ) (67,254 ) (101,267 ) (231,227 ) — (231,227 ) Voyage expenses (1,018 ) (3,087 ) (2,642 ) (986 ) (7,733 ) — (7,733 ) Charterhire (2,230 ) (24,560 ) (6,258 ) (42,702 ) (75,750 ) — (75,750 ) Depreciation (7,828 ) (18,159 ) (54,922 ) (60,509 ) (141,418 ) — (141,418 ) General and administrative expenses (479 ) (2,170 ) (2,805 ) (4,569 ) (10,023 ) (37,488 ) (47,511 ) Loss on sales of vessels — — — (23,345 ) (23,345 ) — (23,345 ) Merger transaction related costs — — — — — (36,114 ) (36,114 ) Bargain purchase gain — — — — — 5,417 5,417 Financial expenses — — — — — (116,240 ) (116,240 ) Realized loss on derivative financial instruments — — (116 ) — (116 ) — (116 ) Financial income 26 214 15 338 593 945 1,538 Other expenses, net — 1,876 — — 1,876 (349 ) 1,527 Segment income or loss $ (1,517 ) $ (933 ) $ 23,141 $ 4,898 $ 25,589 $ (183,829 ) $ (158,240 ) For the year ended December 31, 2016 In thousands of U.S. dollars LR1/Panamax Handymax LR2 MR Reportable segments subtotal Corporate and eliminations Total Vessel revenue $ 5,843 $ 85,578 $ 165,256 $ 265,020 $ 521,697 $ 1,050 $ 522,747 Vessel operating costs (33 ) (32,817 ) (50,028 ) (104,242 ) (187,120 ) — (187,120 ) Voyage expenses (19 ) (479 ) (375 ) (705 ) (1,578 ) — (1,578 ) Charterhire (5,657 ) (26,292 ) (16,025 ) (30,888 ) (78,862 ) — (78,862 ) Depreciation — (18,014 ) (41,900 ) (61,547 ) (121,461 ) — (121,461 ) General and administrative expenses (7 ) (1,410 ) (1,983 ) (4,485 ) (7,885 ) (47,014 ) (54,899 ) Loss on sales of vessels — — — (2,078 ) (2,078 ) — (2,078 ) Financial expenses — — — — — (104,048 ) (104,048 ) Unrealized gain on derivative financial instruments — — 1,371 — 1,371 — 1,371 Financial income — 6 37 47 90 1,123 1,213 Other expenses, net — — — (9 ) (9 ) (179 ) (188 ) Segment income or loss $ 127 $ 6,572 $ 56,353 $ 61,113 $ 124,165 $ (149,068 ) $ (24,903 ) Revenue from customers representing greater than 10% of total revenue during the years ended December 31, 2018 , 2017 and 2016 , within their respective segments was as follows: In thousands of U.S. dollars For the year ended December 31, Segment Customer 2018 2017 2016 MR Scorpio MR Pool Limited (1) $ 225,181 $ 217,141 $ 248,974 LR2 Scorpio LR2 Pool Limited (1) 188,890 136,514 156,503 Handymax Scorpio Handymax Tanker Pool Limited (1) 82,782 78,510 73,683 Panamax Scorpio Panamax Tanker Pool Limited (1) — 1,515 5,843 $ 496,853 $ 433,680 $ 485,003 (1) These customers are related parties as described in Note 17.

Common shares

Common shares	12 Months Ended
	Dec. 31, 2018
Share-Based Payment Arrangements [Abstract]
Common shares	Common shares Follow-on Offerings of Common Shares In October 2018, we closed on the sale of 18.2 million newly issued shares of our common stock in an underwritten public offering at an offering price of $18.50 per share. We received aggregate net proceeds of $319.6 million after deducting underwriters' discounts and offering expenses. Of the 18.2 million common shares issued, 5.4 million and 0.54 million shares were issued to Scorpio Bulkers Inc., and SSH, each a related party affiliate, respectively, at the offering price. In December 2017, we closed on the sale of 3.45 million newly issued shares of our common stock in an underwritten public offering at an offering price of $30.00 per share. We received aggregate net proceeds of $99.6 million after deducting underwriters' discounts and offering expenses. Of the 3.45 million common shares issued, 0.67 million shares were issued to SSH, a related party affiliate, at the offering price. In May 2017, we closed on the sale of 5.0 million newly issued shares of our common stock in an underwritten public offering at an offering price of $40.00 per share. We received aggregate net proceeds of $188.7 million , after deducting underwriters' discounts and offering expenses. The completion of this offering was a condition to closing the Merger with NPTI. Merger with NPTI On September 1, 2017, we issued a total of 5,499,999 common shares to NPTI's shareholders as consideration for the Merger. Additionally, as a part of the Merger, we issued 0.2 million of warrants to the NPTI pool manager (a former related party affiliate of NPTI), exercisable into our common shares at an exercise price of $0.10 per warrant, upon the delivery of the vessels acquired from NPTI to the Scorpio Pools. The first warrant was issued in June 2017 as part of the NPTI Vessel Acquisition for an aggregate of 22,222 of the Company's common shares, and the second warrant was issued on similar terms to the first warrant on September 1, 2017 for an aggregate of 127,778 of the Company's common shares at an exercise price of $0.10 per share upon the delivery of each of the 23 remaining vessels to the Scorpio Pools. This transaction is further described in Note 2. All of the warrants had been exercised as of December 31, 2017. 2013 Equity Incentive Plan In April 2013, we adopted an equity incentive plan, which was amended in March 2014 and which we refer to as the 2013 Equity Incentive Plan, under which directors, officers, employees, consultants and service providers of us and our subsidiaries and affiliates are eligible to receive incentive stock options and non-qualified stock options, stock appreciation rights, restricted stock, restricted stock units and unrestricted common stock. We initially reserved a total of 500,000 common shares for issuance under the 2013 Equity Incentive Plan which was increased by an aggregate of 1,286,971 common shares through December 31, 2016 and subsequently revised as follows: • In October 2017, we reserved an additional 950,180 common shares, par value $0.01 per share, for issuance pursuant to the 2013 Equity Incentive Plan. All other terms of the 2013 Equity Incentive Plan remained unchanged. • In February 2018, we reserved an additional 512,244 common shares, par value $0.01 per share, for issuance pursuant to the 2013 Equity Incentive Plan. All other terms of the 2013 Equity Incentive Plan remained unchanged. • In June 2018, we reserved an additional 210,140 common shares, par value $0.01 per share, for issuance pursuant to the 2013 Equity Incentive Plan. All other terms of the 2013 Equity Incentive Plan remained unchanged. • In December 2018, we reserved an additional 1,383,248 common shares, par value $0.01 per share, for issuance pursuant to the 2013 Equity Incentive Plan. All other terms of the 2013 Equity Incentive Plan remained unchanged Under the terms of the 2013 Equity Incentive Plan, stock options and stock appreciation rights granted under the 2013 Equity Incentive Plan will have an exercise price equal to the fair market value of a common share on the date of grant, unless otherwise determined by the plan administrator, but in no event will the exercise price be less than the fair market value of a common share on the date of grant. Options and stock appreciation rights will be exercisable at times and under conditions as determined by the plan administrator, but in no event will they be exercisable later than ten years from the date of grant. The plan administrator may grant shares of restricted stock and awards of restricted stock units subject to vesting, forfeiture and other terms and conditions as determined by the plan administrator. Following the vesting of a restricted stock unit, the award recipient will be paid an amount equal to the number of vested restricted stock units multiplied by the fair market value of a common share on the date of vesting, which payment may be paid in the form of cash or common shares or a combination of both, as determined by the plan administrator. The plan administrator may grant dividend equivalents with respect to grants of restricted stock units. Adjustments may be made to outstanding awards in the event of a corporate transaction or change in capitalization or other extraordinary event. In the event of a “change in control” (as defined in the 2013 Equity Incentive Plan), unless otherwise provided by the plan administrator in an award agreement, awards then outstanding will become fully vested and exercisable in full. Our Board of Directors may amend or terminate the 2013 Equity Incentive Plan and may amend outstanding awards, provided that no such amendment or termination may be made that would materially impair any rights, or materially increase any obligations, of a grantee under an outstanding award. Shareholder approval of plan amendments will be required under certain circumstances. Unless terminated earlier by our board of directors, the 2013 Equity Incentive Plan will expire ten years from the date the plan was adopted. In December 2017, we issued 997,380 shares of restricted stock to our employees, 60,000 shares to our independent directors and 34,900 shares to SSH employees for no cash consideration. The share price on the issuance date was $30.90 per share. The vesting schedule of the restricted stock issued to our employees is as follows: Number of restricted shares Vesting date 36,043 September 5, 2019 67,026 March 2, 2020 125,857 June 1, 2020 139,576 September 4, 2020 67,026 March 1, 2021 125,858 June 1, 2021 139,577 September 3, 2021 67,026 March 1, 2022 125,858 June 1, 2022 103,533 September 2, 2022 997,380 The vesting schedule of the restricted stock issued to SSH employees is (i) one-third of the shares vest on June 1, 2020, (ii) one-third of the shares vest on June 1, 2021, and (iii) one-third of the shares vest on June 1, 2022. The vesting schedule of the restricted shares issued to our independent directors is (i) one-third of the shares vested on September 5, 2018, (ii) one-third of the shares vest on September 5, 2019, and (iii) one-third shares vest on September 4, 2020. In March 2018, we issued 500,245 shares of restricted stock to our employees and 12,000 shares to our independent directors for no cash consideration. The share price on the issuance date was $22.15 per share. The vesting schedule of the restricted stock issued to our employees is as follows: Number of restricted shares Vesting date 123,518 September 4, 2020 21,750 November 4, 2020 21,479 March 1, 2021 123,518 September 3, 2021 21,750 November 5, 2021 21,480 March 1, 2022 123,519 September 2, 2022 21,751 November 4, 2022 21,480 March 1, 2023 500,245 The vesting schedule of the restricted stock issued to our independent directors is: (i) one-third of the shares vested on March 1, 2019, (ii) one-third of the shares vest on March 2, 2020, and (iii) one-third of the shares vest on March 1, 2021. In September 2018, we issued 198,141 shares of restricted stock to our employees and 12,000 shares to our independent directors for no cash consideration. The share price on the issuance date was $19.75 per share. The vesting schedule of the restricted stock issued to our employees is (i) one-third of the shares vest on June 9, 2021, (ii) one-third of the shares vest on June 9, 2022, and (iii) one-third of the shares vest on June 8, 2023. The vesting schedule of the restricted stock issued to our independent directors is (i) one-third of the shares vest on June 10, 2019, (ii) one-third of the shares vest on June 10, 2020, and (iii) one-third of the shares vest on June 9, 2021. In December 2018, we issued 1,103,248 shares of restricted stock to our employees and 60,000 shares to our independent directors for no cash consideration. The share price on the issuance date was $19.55 per share. The vesting schedule of the restricted stock issued to our employees is (i) one-third of the shares vest on September 23, 2021, (ii) one-third of the shares vest on September 26, 2022, and (iii) one-third of the shares vest on September 25, 2023. The vesting schedule of the restricted stock issued to our independent directors is (i) one-third of the shares vest on September 25, 2019, (ii) one-third of the shares vest on September 24, 2020, and (iii) one-third of the shares vest on September 23, 2021. There were 226,107 shares eligible for issuance under the 2013 Equity Incentive Plan as of December 31, 2018 . The following is a summary of activity for awards of restricted stock during the years ended December 31, 2018 and 2017 : Number of Shares Weighted Average Grant Date Fair Value Outstanding and non-vested, December 31, 2016 1,261,358 $ 85.21 Granted 1,092,280 30.90 Vested (423,697 ) 89.92 Forfeited (4,500 ) 75.87 Outstanding and non-vested, December 31, 2017 1,925,441 53.39 Granted 1,885,633 20.28 Vested (447,380 ) 89.13 Forfeited (3,807 ) 52.59 Outstanding and non-vested, December 31, 2018 3,359,887 $ 30.05 Compensation expense is recognized ratably over the vesting periods for each tranche using the straight-line method. Assuming that all the restricted stock will vest, the stock compensation expense in future periods, including that related to restricted stock issued in prior periods will be: In thousands of U.S. dollars Employees Directors Total For the year ending December 31, 2019 24,440 1,393 25,833 For the year ending December 31, 2020 18,554 539 19,093 For the year ending December 31, 2021 11,465 119 11,584 For the year ending December 31, 2022 4,858 — 4,858 For the year ending December 31, 2023 1,235 — 1,235 $ 60,552 $ 2,051 $ 62,603 Dividend Payments The following dividends were paid during the years ended December 31, 2018 , 2017 and 2016 . Dividends Date per share Paid $1.250 March 30, 2016 $1.250 June 24, 2016 $1.250 September 29, 2016 $1.250 December 22, 2016 $0.100 March 30, 2017 $0.100 June 14, 2017 $0.100 September 29, 2017 $0.100 December 28, 2017 $0.100 March 27, 2018 $0.100 June 28, 2018 $0.100 September 27, 2018 $0.100 December 13, 2018 2015 Securities Repurchase Program In May 2015, our Board of Directors authorized a new Securities Repurchase Program to purchase up to an aggregate of $250 million of our common stock and bonds, the latter of which currently consists of our (i) Convertible Notes due 2019, (ii) Senior Notes Due 2020 (NYSE: SBNA), and (iii) Convertible Notes due 2022. During the year ended December 31, 2018 , we purchased an aggregate of 1,351,235 of our common shares that are being held as treasury shares at an average price of $17.20 per share. We had $123.8 million remaining under our Securities Repurchase Program as of December 31, 2018 . We expect to repurchase any securities in the open market, at times and prices that are considered to be appropriate, but we are not obligated under the terms of the program to repurchase any securities. There were 6,349,294 and 4,998,059 common shares held in treasury at each of December 31, 2018 and December 31, 2017 , respectively. Shares outstanding We currently have 175,000,000 registered shares of which 150,000,000 are designated as common shares with a par value of $0.01 and 25,000,000 designated as preferred shares with a par value of $0.01 . As of December 31, 2018 , we had 51,397,562 common shares outstanding. These shares provide the holders with rights to dividends and voting rights.

Related party transactions

Related party transactions	12 Months Ended
	Dec. 31, 2018
Related Party [Abstract]
Related party transactions	Related party transactions On September 29, 2016, we agreed to amend our master agreement, or the Master Agreement, with SCM and SSM under a deed of amendment, or the Deed of Amendment. Pursuant to the terms of the Deed of Amendment, on November 15, 2016, we entered into definitive documentation to memorialize the agreed amendments to the Master Agreement, or the Amended and Restated Master Agreement. On February 22, 2018, we entered into definitive documentation to memorialize agreed amendments to the Amended and Restated Master Agreement under a deed of amendment, or the Amendment Agreement. The Amended and Restated Master Agreement as amended by the Amendment Agreement, or the Revised Master Agreement, is effective as from January 1, 2018. Pursuant to the Revised Master Agreement, the fixed annual technical management fee was reduced from $250,000 per vessel to $175,000 per vessel, and certain services previously provided as part of the fixed fee are now itemized. The aggregate cost, including the costs that are now itemized, for the services provided under the technical management agreement, did not materially differ from the annual technical management fee charged prior to the amendment. Transactions with entities controlled by the Lolli-Ghetti family (herein referred to as related party affiliates) in the consolidated statements of income or loss and balance sheets are as follows: For the year ended December 31, In thousands of U.S. dollars 2018 2017 2016 Pool revenue (1) Scorpio MR Pool Limited $ 225,181 $ 217,141 $ 248,974 Scorpio LR2 Pool Limited 188,890 136,514 156,503 Scorpio Handymax Tanker Pool Limited 82,782 78,510 73,683 Scorpio LR1 Pool Limited 46,823 13,895 — Scorpio Panamax Tanker Pool Limited — 1,515 5,843 Scorpio Aframax Pool Limited — 1,170 — Voyage expenses (2) (1,290 ) (1,786 ) (1,128 ) Vessel operating costs (3) (34,272 ) (27,601 ) (22,526 ) Administrative expenses (4) (12,475 ) (10,744 ) (9,462 ) (1) These transactions relate to revenue earned in the Scorpio Pools. The Scorpio Pools are related party affiliates. When our vessels are in the Scorpio Pools, SCM, the pool manager, charges fees of $300 per vessel per day with respect to our LR1/Panamax and Aframax vessels, $250 per vessel per day with respect to our LR2 vessels, and $325 per vessel per day with respect to each of our Handymax and MR vessels, plus a commission of 1.50% on gross revenue per charter fixture. These are the same fees that SCM charges other vessels in these pools, including third party owned vessels. In September 2018, we entered into an agreement with SCM whereby SCM will reimburse a portion of the commissions that SCM charges the Company’s vessels to effectively reduce such to 0.85% of gross revenue per charter fixture, effective from September 1, 2018 and ending on June 1, 2019. (2) Related party expenditures included within voyage expenses in the consolidated statements of income or loss consist of the following: ◦ Expenses due to SCM, a related party affiliate, for commissions related to the commercial management services provided by SCM under the commercial management agreement for vessels that are not in one of the Scorpio Pools. SCM’s services include securing employment, in the spot market and on time charters, for our vessels. When not in one of the Scorpio Pools, each vessel pays (i) flat fees of $250 per day for LR1/Panamax and LR2/Aframax vessels and $300 per day for Handymax and MR vessels and (ii) commissions of 1.25% of their gross revenue per charter fixture. These expenses are included in voyage expenses in the consolidated statements of income or loss. In September 2018, we entered into an agreement with SCM whereby SCM will reimburse a portion of the commissions that SCM charges the Company’s vessels to effectively reduce such to 0.85% of gross revenue per charter fixture, effective from September 1, 2018 and ending on June 1, 2019. • Voyage expenses of $25,747 charged by a related party port agent during the year ended December 31, 2018 . SSH has a majority equity interest in a port agent that provides supply and logistical services for vessels operating in its regions. No voyage expenses were charged by this port agent during the years ended December 31, 2017 and 2016. The fees and rates charged by this port agent are based on the prevailing market rates for such services in each respective region. (3) Related party expenditures included within vessel operating costs in the consolidated statements of income or loss consist of the following: • Technical management fees of $30.1 million , $22.9 million , and $19.5 million charged by SSM, a related party affiliate, during the years ended December 31, 2018, 2017 and 2016 respectively. SSM’s services include day-to-day vessel operations, performing general maintenance, monitoring regulatory and classification society compliance, customer vetting procedures, supervising the maintenance and general efficiency of vessels, arranging the hiring of qualified officers and crew, arranging and supervising drydocking and repairs, purchasing supplies, spare parts and new equipment for vessels, appointing supervisors and technical consultants, and providing technical support. • Insurance related expenses of $2.6 million , $4.3 million and $3.0 million incurred through a related party insurance broker during the years ended December 31, 2018, 2017 and 2016, respectively. In 2016, an Executive Officer of the Company acquired a minority interest, which in 2018 increased to a majority interest, in an insurance broker which arranges hull and machinery and war risk insurance for certain of our owned and finance leased vessels. This broker has arranged such policies for the Company since 2010 and the extent of the coverage and the manner in which the policies are priced did not change as a result of this transaction. In September 2018, the Executive Officer disposed of his interest in the insurance broker in its entirety to a third party not affiliated with the Company. The amounts recorded reflect the amortization of the policy premiums through September 2018, which are paid directly to the broker, who then remits the premiums to the underwriters. • Vessel operating expenses of $1.6 million and $0.4 million charged by a related party port agent during the years ended December 31, 2018 and 2017, respectively. SSH has a majority equity interest in a port agent that provides supply and logistical services for vessels operating in its regions. The fees and rates charged by this port agent are based on the prevailing market rates for such services in each respective region. (4) We have an Amended Administrative Services Agreement with SSH for the provision of administrative staff and office space, and administrative services, including accounting, legal compliance, financial and information technology services. SSH is a related party to us. We reimburse SSH for the reasonable direct or indirect expenses that are incurred on our behalf. SSH also arranges vessel sales and purchases for us. The services provided to us by SSH may be sub-contracted to other entities within Scorpio. The expenses incurred under this agreement were as follows, and were recorded in general and administrative expenses in the consolidated statement of income or loss. • The expense for the year ended December 31, 2018 of $12.5 million included (i) administrative fees of $11.1 million charged by SSH, (ii) restricted stock amortization of $1.3 million , which relates to the issuance of an aggregate of 114,400 shares of restricted stock to SSH employees for no cash consideration in May 2014, September 2014, July 2015, July 2016 and December 2017, and (iii) the reimbursement of expenses of $46,535 . • The expense for the year ended December 31, 2017 of $10.7 million included (i) administrative fees of $9.0 million charged by SSH, (ii) restricted stock amortization of $1.2 million , which relates to the issuance of an aggregate of 114,400 shares of restricted stock to SSH employees for no cash consideration in May 2014, September 2014, July 2015, July 2016 and December 2017 and (iii) the reimbursement of expenses of $0.5 million . • The expense for the year ended December 31, 2016 of $9.5 million included (i) administrative fees of $7.3 million charged by SSH, (ii) restricted stock amortization of $1.6 million , which relates to the issuance of an aggregate of 79,500 shares of restricted stock to SSH employees for no cash consideration in May and September 2014, July 2015 and July 2016 and (iii) the reimbursement of expenses of $0.6 million . We had the following balances with related party affiliates, which have been included in the consolidated balance sheets: As of December 31, In thousands of U.S. dollars 2018 2017 Assets: Accounts receivable (due from the Scorpio Pools) (1) $ 66,178 $ 44,880 Accounts receivable and prepaid expenses (SSM) (2) 2,461 6,391 Accounts receivable and prepaid expenses (SCM) (3) 2,511 — Accounts receivable and prepaid expenses (related party insurance broker) (4) — 2,428 Other assets (pool working capital contributions) (5) 42,973 41,401 Liabilities: Accounts payable and accrued expenses (SSM) 832 766 Accounts payable and accrued expenses (related party port agent) 459 95 Accounts payable and accrued expenses (SSH) 409 190 Accounts payable and accrued expenses (SCM) 389 191 Accounts payable and accrued expenses (owed to the Scorpio Pools) 66 462 Accounts payable and accrued expenses (related party insurance broker) — 2,190 (1) Accounts receivable due from the Scorpio Pools relate to hire receivables for revenues earned and receivables from working capital contributions. The amounts as of December 31, 2018 and 2017 include $22.9 million and $25.7 million , respectively, of working capital contributions made on behalf of our vessels to the Scorpio Pools. Upon entrance into such pools, all vessels are required to make working capital contributions of both cash and bunkers. Additional working capital contributions can be made from time to time based on the operating needs of the pools. These amounts are accounted for and repaid as follows: • For vessels in the Scorpio Handymax Tanker Pool, the initial contribution amount is repaid, without interest, upon a vessel’s exit from the pool no later than six months after the exit date. Bunkers on board a vessel exiting the pool are credited against such repayment at the actual invoice price of the bunkers. For all owned or finance leased vessels we assume that these contributions will not be repaid within 12 months and are thus classified as non-current within other assets on the consolidated balance sheets. For time or bareboat chartered-in vessels we classify the initial contributions as current (within accounts receivable) or non-current (within other assets) according to the expiration of the contract. Any additional working capital contributions are repaid when sufficient net revenues become available to cover such amounts. • For vessels in the Scorpio MR Pool and Scorpio Panamax Tanker Pool, any contributions are repaid, without interest, when such vessel has earned sufficient net revenues to cover the value of such working capital contributed. Accordingly, we classify such amounts as current (within accounts receivable). • For vessels in the Scorpio LR2 Pool, Scorpio Aframax Pool and Scorpio LR1 Pool, the initial contribution amount is repaid, without interest, upon a vessel’s exit from each pool. Bunkers on board a vessel exiting the pool are credited against such repayment at the actual invoice price of the bunkers. For all owned or finance leased vessels we assume that these contributions will not be repaid within 12 months and are thus classified as non-current within other assets on the consolidated balance sheets. For time or bareboat chartered-in vessels we classify the initial contributions as current (within accounts receivable) or non-current (within other assets) according to the expiration of the contract. Any additional working capital contributions are repaid when sufficient net revenues become available to cover such amounts and are therefore classified as current. (2) Accounts receivable and prepaid expenses from SSM relate to advances made for vessel operating expenses (such as crew wages) that will either be reimbursed or applied against future costs. (3) Accounts receivable and prepaid expenses from SCM primarily relate to the reduction of commission rebate to 0.85% of gross revenue per charter fixture as described above. (4) Accounts receivable and prepaid expenses from related-party insurance brokerage firm (as discussed above) relate to premiums which have been prepaid and are being amortized over the term of the respective policy. In September 2018, the Executive Officer who had an ownership interest in this firm disposed of their interest in its entirety to a third party not affiliated with the Company. (5) Represents the non-current portion of working capital receivables as described above. Prior to September 29, 2016, we paid SSH a fee for arranging vessel purchases and sales, on our behalf, equal to 1% of the gross purchase or sale price, payable upon the consummation of any such purchase or sale. This fee was eliminated for all vessel purchase or sale agreements entered into after September 29, 2016. These fees are capitalized as part of the carrying value of the related vessel for a vessel purchase and are included as part of the gain or loss on sale for a vessel disposal. • During the year ended December 31, 2018, we paid SSH an aggregate fee of $0.7 million in connection with the purchase and delivery of STI Esles II and STI Jardins. The agreements to acquire the aforementioned vessels were entered into prior to the September 29, 2016 amendments to the Administrative Services Agreement. • During the year ended December 31, 2017, we paid SSH an aggregate fee of $2.2 million in connection with the purchase and delivery of STI Galata, STI Bosphorus, STI Leblon, STI La Boca, STI San Telmo and STI Donald C. Trauscht . Additionally, we paid SCM an aggregate termination fee of $0.2 million that was due under the commercial management agreements and we paid SSM an aggregate termination fee of $0.2 million that was due under the technical management agreements as a result of the sales of STI Emerald and STI Sapphire which have been recorded within loss on sales of vessels within the consolidated statement of income or loss. The agreements to acquire the aforementioned vessels were entered into prior to the September 29, 2016 amendments to the Master Agreement and Administrative Services Agreement. • During the year ended December 31, 2016, we paid SSH an aggregate fee of $1.7 million in connection with the sales of STI Lexington, STI Mythos, STI Chelsea, STI Powai, and STI Olivia and a fee of $0.6 million for the purchase and delivery of STI Lombard . Additionally, we paid SCM an aggregate termination fee of $2.7 million that was due under the commercial management agreements and we paid SSM an aggregate termination fee of $2.5 million that was due under the technical management agreements as a result of the aforementioned vessel sales. The agreements to acquire the aforementioned vessels were entered into prior to the September 29, 2016 amendments to the Master Agreement and Administrative Services Agreement. The aggregate fees paid to SCM, SSH and SSM as they relate to the aforementioned vessel sales, are recorded within loss on sales of vessels within the consolidated statement of income or loss. In 2011, we entered into an agreement to reimburse costs to SSM as part of its supervision agreement for newbuilding vessels. There were no costs incurred under this agreement during the years ended December 31, 2018 , 2017 and 2016 . We also have an agreement with SSM to supervise the eight MR product tankers that were under construction at HMD and delivered throughout 2017 and in January 2018. We paid SSM $0.7 million under this agreement during the year ended December 31, 2017. There were no costs incurred under this agreement during the years ended December 31, 2018 and 2016. Key management remuneration The table below shows key management remuneration for the years ended December 31, 2018 , 2017 and 2016 : For the year ended December 31, In thousands of U.S. dollars 2018 2017 2016 Short-term employee benefits (salaries) $ 5,436 $ 6,614 $ 8,786 Share-based compensation (1) 20,316 19,113 25,575 Total $ 25,752 $ 25,727 $ 34,361 (1) Represents the amortization of restricted stock issued under our equity incentive plans as described in Note 16. For the purpose of the table above, key management are those persons who have authority and responsibility for making strategic decisions, and managing operating, financial and legal activities. There are no material post-employment benefits for our executive officers or directors. By law, our employees in Monaco are entitled to a one -time payment of up to two months salary upon retirement if they meet certain minimum service requirements.

Vessel revenue

Vessel revenue	12 Months Ended
	Dec. 31, 2018
Analysis of income and expense [abstract]
Vessel revenue	Vessel revenue During the years ended December 31, 2018 , 2017 and 2016 , we had five , five , and six vessels that earned revenue through long-term time-charter contracts (with initial terms of one year or greater), respectively. The remaining vessels earned revenue from the Scorpio Pools or in the spot market. Revenue Sources For the year ended December 31, In thousands of U.S. dollars 2018 2017 2016 Pool revenue $ 543,784 $ 458,730 $ 485,003 Time charter revenue 34,015 37,411 36,694 Voyage revenue (spot market) 7,248 16,591 — Other revenue — — 1,050 $ 585,047 $ 512,732 $ 522,747

Operating Leases

Operating Leases	12 Months Ended
	Dec. 31, 2018
Leases 1 [Abstract]
Operating Leases	Operating Leases Time and Bareboat Chartered-In Vessels The following table depicts our time or bareboat chartered-in vessel commitments during the year ended December 31, 2018 : Name Year built Vessel class Charter type Delivery (1) Charter Expiration Rate ($/ day) Active as of December 31, 2018 1 Silent 2007 Handymax Bareboat January-17 March-19 7,500 2 Single 2007 Handymax Bareboat January-17 March-19 7,500 3 Star I 2007 Handymax Bareboat January-17 March-19 7,500 4 Steel 2008 Handymax Bareboat January-17 March-19 6,000 5 Sky 2008 Handymax Bareboat January-17 March-19 6,000 6 Stone I 2008 Handymax Bareboat January-17 March-19 6,000 7 Style 2008 Handymax Bareboat January-17 March-19 6,000 8 Miss Benedetta 2012 MR Time Charter March-18 January-19 14,000 9 STI Beryl 2013 MR Bareboat April-17 April-25 8,800 (2) 10 STI Le Rocher 2013 MR Bareboat April-17 April-25 8,800 (2) 11 STI Larvotto 2013 MR Bareboat April-17 April-25 8,800 (2) Time or bareboat charters that expired in 2018 1 Krisjanis Valdemars 2007 Handymax Time Charter February-11 March-18 11,250 2 Vukovar 2015 MR Time Charter May-15 April-18 17,034 3 Kraslava 2007 Handymax Time Charter January-11 May-18 11,250 4 Zefyros 2013 MR Time Charter July-16 May-18 13,250 5 CPO New Zealand 2011 MR Time Charter September-16 August-18 15,250 6 CPO Australia 2011 MR Time Charter September-16 August-18 15,250 7 Densa Alligator 2013 LR2 Time Charter February-18 August-18 14,300 8 Ance 2006 MR Time Charter October-16 September-18 13,500 9 Gan-Trust 2013 MR Time Charter January-13 December-18 13,950 10 Densa Crocodile 2015 LR2 Time Charter June-18 December-18 14,800 (1) Represents delivery date or estimated delivery date. (2) In April 2017, we sold and leased back this vessel, on a bareboat basis, for a period of up to eight years for $8,800 per day. The sales price was $29.0 million, and we have the option to purchase this vessel beginning at the end of the fifth year of the agreement through the end of the eighth year of the agreement, at market-based prices. Additionally, a deposit of $4.35 million was retained by the buyer and will either be applied to the purchase price of the vessel if a purchase option is exercised, or refunded to us at the expiration of the agreement. The undiscounted remaining future minimum lease payments under these arrangements as of December 31, 2018 are $65.4 million . The obligations under these agreements will be repaid as follows: As of December 31, In thousands of U.S. dollars 2018 2017 Less than 1 year $ 14,241 $ 52,532 1 - 5 years 38,570 42,839 5+ years 12,628 22,264 Total $ 65,439 $ 117,635 During the years ended December 31, 2018 , 2017 and 2016 , our charterhire expense was $ 59.6 million , $75.8 million and $78.9 million , respectively. These lease payments include payments for the non-lease elements in our time chartered-in arrangement that expired in January 2019. Moreover, the accounting for the bareboat charter-in arrangements for STI Beryl, STI Larvotto and STI Le Rocher will change in future periods as a result of the transition to IFRS 16, Leases , the impact of which is described in Note 1. Time Chartered-Out Vessels The following table summarizes the terms of our time chartered-out vessels that were in place during the years ended December 31, 2018 and 2017 . Name Year built Type Delivery Date to the Charterer Charter Expiration Rate ($/ day) 1 STI Pimlico 2014 Handymax February-16 March-19 $ 18,000 2 STI Poplar 2014 Handymax January-16 February-19 $ 18,000 3 STI Notting Hill 2015 MR November-15 October-18 $ 20,500 4 STI Westminster 2015 MR December-15 October-18 $ 20,500 5 STI Rose 2015 LR2 February-16 February-19 $ 28,000 Payments received include payments for the non-lease elements in these time chartered-out arrangements. The future minimum payments due to us under these non-cancellable leases are set forth below. These minimum payments are shown net of address commissions, which are deducted upon payment. As of December 31, In thousands of U.S. dollars 2018 2017 Less than 1 year $ 2,581 $ 35,992 1 - 5 years — 2,176 5+ years — — Total $ 2,581 $ 38,168

General and administrative expe

General and administrative expenses	12 Months Ended
	Dec. 31, 2018
Analysis of income and expense [abstract]
General and administrative expenses	General and administrative expenses General and administrative expenses primarily represent employee benefit expenses, professional fees and administrative fees payable to SSH under our administrative services agreement (as described in Note 17). Employee benefit expenses consist of: For the year ended December 31, In thousands of U.S. dollars 2018 2017 2016 Short term employee benefits (salaries) $ 9,605 $ 9,196 $ 12,330 Share based compensation (see Note 16) 25,547 22,385 30,207 $ 35,152 $ 31,581 $ 42,537

Financial expenses

Financial expenses	12 Months Ended
	Dec. 31, 2018
Analysis of income and expense [abstract]
Financial expenses	Financial expenses Financial expenses consist of: For the year ended December 31, In thousands of U.S. dollars 2018 2017 2016 Interest expense on debt (1) $ 145,871 $ 86,703 $ 63,858 Amortization of deferred financing fees 10,541 13,381 14,149 Write-off of deferred financing fees (2) 13,212 2,467 14,479 Accretion of convertible notes (as described in Note 13) 13,225 12,211 11,562 Accretion of premiums and discounts on assumed debt (3) 3,779 1,478 — Total financial expenses $ 186,628 $ 116,240 $ 104,048 (1) The increase in interest expense is primarily attributable to increases in the Company’s average carrying value of debt balance in addition to increases in LIBOR rates throughout 2018. Average carrying value of our debt outstanding during the years ended December 31, 2018 , 2017 and 2016 was $2,806.9 million , $2,265.7 million and $1,986.6 million , respectively. The increase in average carrying value of our debt balance during the year ended December 31, 2018 was primarily the result of the Merger and the assumption of NPTI's indebtedness of $907.4 million in aggregate in addition to a series of initiatives to refinance the existing indebtedness on certain of the vessels in our fleet (as described in Note 13). Interest payable during those periods was offset by interest capitalized from vessels under construction (as described in Note 7) of $0.2 million , $4.2 million and $6.3 million , during the years ended December 31, 2018 , 2017 and 2016 respectively. (2) The write-off of deferred financing fees in the year ended December 31, 2018 include (i) $1.2 million related to the exchange of our Convertible Notes due 2019 in May and July 2018 (as described in Note 11), and (ii) $12.0 million related to the initiatives to refinance the existing indebtedness on certain of the vessels in our fleet (as described in Note 13). The write-off of deferred financing fees in the year ended December 31, 2017 includes (i) $0.5 million related to the repayment of debt as a result of the sales of two vessels (as described in Note 6), (ii) $0.1 million related to the repayment of debt as a result of the sale and operating leasebacks of three vessels (as described in Note 19), (iii) $ 1.1 million related to the repayment of debt as a result of the finance lease arrangements for five vessels (as described in Note 13), and (iv) $0.8 million related to the refinancing and repayment of various secured and unsecured borrowings during the year ended December 31, 2017 . The write-off of deferred financing fees in the year ended December 31, 2016 includes (i) $3.2 million related to the repayment of debt as a result of the sales of five vessels, and (ii) $11.2 million related to the refinancing of outstanding borrowings under various credit facilities and the repurchase of our Convertible Notes due 2019 as described in Note 13. (3) The accretion of premiums and discounts represent the accretion or amortization of the fair value adjustments relating to the indebtedness assumed from NPTI that have been recorded since the closing dates of the NPTI Vessel Acquisition and the September Closing.

Tax

Tax	12 Months Ended
	Dec. 31, 2018
Income Taxes [Abstract]
Tax	Tax Scorpio Tankers Inc. and its subsidiaries are incorporated in the Republic of the Marshall Islands, and in accordance with the income tax laws of the Marshall Islands, are not subject to Marshall Islands’ income tax. Based upon review of applicable laws and regulations, and after consultation with counsel, we do not believe we are subject to material income taxes in any jurisdiction, including the United States of America. Therefore, we did not have any income tax charges, benefits, or balances as of or for the periods ended December 31, 2018 , 2017 and 2016 .

(Loss) _ earnings per share

(Loss) / earnings per share	12 Months Ended
	Dec. 31, 2018
Earnings per share [abstract]
(Loss) / earnings per share	(Loss) / earnings per share The calculation of both basic and diluted (loss) / earnings per share is based on net income or loss attributable to equity holders of the parent and weighted average outstanding shares of: For the year ended December 31, In thousands of U.S. dollars except for share data 2018 2017 2016 Net loss attributable to equity holders of the parent - basic $ (190,071 ) $ (158,240 ) $ (24,903 ) Convertible notes interest expense — — — Convertible notes deferred financing amortization — — — Net loss attributable to equity holders of the parent - diluted $ (190,071 ) $ (158,240 ) $ (24,903 ) Basic weighted average number of shares 34,824,311 21,533,340 16,111,865 Effect of dilutive potential basic shares: Restricted stock — — — Convertible notes — — — — — — Diluted weighted average number of shares 34,824,311 21,533,340 16,111,865 Loss Per Share: Basic $ (5.46 ) $ (7.35 ) $ (1.55 ) Diluted $ (5.46 ) $ (7.35 ) $ (1.55 ) During the years ended December 31, 2018 , 2017 and 2016 , we incurred net losses and as a result, the inclusion of potentially dilutive shares relating to unvested shares of restricted stock and our Convertible Notes due 2019 and Convertible Notes due 2022 were excluded from the computation of diluted earnings per share because their effect would have been anti-dilutive. Accordingly, interest expense, deferred financing amortization and the potentially dilutive securities relating to the conversion of the Convertible Notes due 2019 and Convertible Notes due 2022 (representing 6,613,733 , 3,442,282 , and 3,404,979 shares of common stock for the years ended December 31, 2018 , 2017 and 2016, respectively) along with the potentially dilutive impact of 3,359,887 and 1,925,441 and 1,261,358 unvested shares of restricted stock were excluded from the computation of diluted earnings per share for the years ended December 31, 2018 , 2017 and 2016, respectively.

Financial instruments - financi

Financial instruments - financial and other risks	12 Months Ended
	Dec. 31, 2018
Financial Instruments [Abstract]
Financial instruments - financial and other risks	Financial instruments - financial and other risks Funding and capital risk management We manage our funding and capital resources to ensure our ability to continue as a going concern while maximizing the return to the shareholder through optimization of the debt and equity balance. IFRS 13 requires classifications of fair value measures into Levels 1, 2 and 3. Level 1 fair value measurements are those derived from quoted prices (unadjusted) in active markets for identical assets or liabilities. Level 2 fair value measurements are those derived from inputs other than quoted prices included within Level 1 that are observable for the asset or liability, either directly (i.e. as prices) or indirectly (i.e. derived from prices). Level 3 fair value measurements are those derived from valuation techniques that include inputs for the asset or liability that are not based on observable market data (unobservable inputs). The fair values and carrying values of our financial instruments at December 31, 2018 and 2017 , respectively, are shown in the table below. Categories of Financial Instruments As of December 31, 2018 As of December 31, 2017 Amounts in thousands of U.S. dollars Fair value Carrying Value Fair value Carrying Value Financial assets Cash and cash equivalents (1) $ 593,652 $ 593,652 $ 186,462 $ 186,462 Restricted cash (2) 12,285 12,285 11,387 11,387 Accounts receivable (3) 69,718 69,718 65,458 65,458 Investment in ballast water treatment supplier (4) 1,751 1,751 — — Working capital contributions to Scorpio Pools (5) 42,973 42,973 41,401 41,401 Seller's credit on sale leaseback vessels (6) 9,087 9,087 8,581 8,581 Financial liabilities Accounts payable (7) $ 11,865 $ 11,865 $ 13,044 $ 13,044 Accrued expenses (7) 22,972 22,972 32,838 32,838 Secured bank loans (8) 1,066,452 1,066,452 1,615,248 1,615,248 Finance lease liability (9) 1,420,381 1,420,381 717,139 717,139 Unsecured Senior Notes Due 2020 (10) 52,584 53,750 53,449 53,750 Unsecured Senior Notes Due 2019 (10) 58,029 57,500 58,466 57,500 Convertible Notes due 2019 (11) 140,267 145,000 316,184 348,500 Convertible Notes due 2022 (11) 163,842 203,500 — — (1) Cash and cash equivalents are considered Level 1 items as they represent liquid assets with short-term maturities. (2) Restricted cash are considered Level 1 items due to the liquid nature of these assets. (3) We consider that the carrying amount of accounts receivable approximate their fair value due to the relative short maturity of these instruments. (4) We consider the value of our minority interest in our ballast water treatment system supplier (as described in Note 9) to be a Level 3 fair value measurement, as this supplier is a private company and the value has been determined based on unobservable market data (i.e. the proceeds that we would receive if we exercised the put option set forth in the agreement in full). Moreover, we consider that its carrying value approximates fair value given that the value of this investment is contractually limited to the strike prices set forth in the put and call options prescribed in the agreement and the difference between the two prices is not significant. The difference in the aggregate value of the investment, based on the spread between the exercise prices of the put and call options is $0.6 million . (5) Non-current working capital contributions to the Scorpio Pools are repaid, without interest, upon a vessel’s exit from the pool. For all owned vessels, we assume that these contributions will not be repaid within 12 months and are thus classified as non-current within Other Assets on the consolidated balance sheets. We consider that their carrying values approximate fair value given that the amounts due are contractually fixed based on the terms of each pool agreement. (6) The seller's credit on lease financed vessels represents the present value of the deposits of $4.35 million per vessel ( $13.1 million in aggregate) that was retained by the buyer as part of the sale and operating leasebacks of STI Beryl , STI Le Rocher and STI Larvotto , which is described in Note 13. This deposit will either be applied to the purchase price of the vessel if a purchase option is exercised, or refunded to us at the expiration of the agreement. This deposit has been recorded as a financial asset measured at amortized cost. The present value of this deposit has been calculated based on the interest rate that is implied in the lease, and the carrying value will accrete over the life of the lease using the effective interest method, through interest income, until expiration. We consider that its carrying value approximates fair value given that its value is contractually fixed based on the terms of each lease. (7) We consider that the carrying amounts of accounts payable and accrued expenses approximate the fair value due to the relative short maturity of these instruments. (8) The carrying value of our secured bank loans are measured at amortized cost using the effective interest method. We consider that their carrying value approximates fair value because the interest rates on these instruments change with, or approximate, market interest rates. Accordingly, we consider their fair value to be a Level 2 measurement. These amounts are shown net of $12.6 million and $29.9 million of unamortized deferred financing fees as of December 31, 2018 and 2017 , respectively. (9) The carrying value of our obligations due under finance lease arrangements are measured at amortized cost using the effective interest method. We consider that their carrying value approximates fair value because the interest rates on these instruments change with, or approximate, market interest rates. These amounts are shown net of $9.5 million and $1.2 million of unamortized deferred financing fees as of December 31, 2018 and 2017 , respectively. (10) The carrying value of our Unsecured Senior Notes Due 2020 and 2019 are measured at amortized cost using the effective interest method. The carrying values shown in the table are the face value of the notes. These notes are shown net of $0.5 million and $0.5 million of unamortized deferred financing fees, respectively, on our consolidated balance sheet as of December 31, 2018 . These notes are shown net of $0.8 million and $1.5 million of unamortized deferred financing fees, respectively, on our consolidated balance sheet as of December 31, 2017. Our Senior Notes Due 2020 and 2019 are quoted on the New York Stock Exchange under the symbols 'SBNA' and 'SBBC', respectively. We consider their fair values to be Level 1 measurements due to their quotation on an active exchange. (11) The carrying value of our Convertible Notes due 2019 and Convertible Notes 2022 shown in the table above are their face value. The liability component of the Convertible Notes due 2019 has been recorded within Long-term debt on the consolidated balance sheet as of December 31, 2018 and 2017, net of $0.4 million and $2.8 million , respectively, of unamortized deferred financing fees. The equity component of the Convertible Notes due 2019 has been recorded within Additional paid-in capital on the consolidated balance sheet, net of $1.9 million , of unamortized deferred financing fees. These instruments are traded in inactive markets and are valued based on quoted prices on the recent trading activity. Accordingly, we consider its fair value to be a Level 2 measurement. Financial risk management objectives We identify and evaluate significant risks on an ongoing basis with the objective of managing the sensitivity of our results and financial position to those risks. These risks include market risk, credit risk, liquidity risk and foreign exchange risk. The use of financial derivatives is governed by our policies as approved by the Board of Directors. Market risk Our activities expose us to the risks inherent with the tanker industry, which has historically been volatile, and financial risks of changes in interest rates. Spot market rate risk The cyclical nature of the tanker industry causes significant increases or decreases in the revenue that we earn from our vessels, particularly those vessels that operate in the spot market or participate in pools that are concentrated in the spot market such as the Scorpio Pools. Additionally, we have the ability to remove our vessels from the pools on relatively short notice if attractive time charter opportunities arise. A $1,000 per day increase or decrease in spot rates for all of our vessel classes would have increased or decreased our operating income by $43.7 million , $36.6 million and $31.1 million for the years ended December 31, 2018 , 2017 and 2016 , respectively. Interest rate risk The sensitivity analyses below have been determined based on the exposure to interest rates for non-derivative instruments at the balance sheet date. For floating rate liabilities, the analysis is prepared assuming the amount of liability outstanding at the balance sheet date was outstanding for the entire year. If interest rates had been 1% higher/lower and all other variables were held constant, our net loss for the year ended December 31, 2018 would have decreased/increased by $22.8 million . This is mainly attributable to our exposure to interest rate movements on our variable interest rate credit facilities and lease financing arrangements as described in Note 13. If interest rates had been 1% higher/lower and all other variables were held constant, our net income for the year ended December 31, 2017 would have decreased/increased by $17.9 million . This is mainly attributable to our exposure to interest rate movements on our variable interest rate credit facilities and lease financing arrangements as described in Note 13. If interest rates had been 1% higher/lower and all other variables were held constant, our net income for the year ended December 31, 2016 would have decreased/increased by $14.8 million . This is mainly attributable to our exposure to interest rate movements on our variable interest rate credit facilities that were in place during that year. Credit risk Credit risk is the potential exposure of loss in the event of non-performance by customers and derivative instrument counterparties. We only place cash deposits with major banks covered with strong and acceptable credit ratings. Accounts receivable are generally not collateralized; however, we believe that the credit risk is partially offset by the creditworthiness of our counterparties including the commercial manager. We did not experience any credit losses on our accounts receivables portfolio in the years ended December 31, 2018 , 2017 and 2016 . The carrying amount of financial assets recognized on our consolidated financial statements represents the maximum exposure to credit risk without taking into account the value of any collateral obtained. We did not experience any impairment losses on financial assets in the years ended December 31, 2018 , 2017 and 2016 . We monitor exposure to credit risk, and believe that there is no substantial credit risk arising from counterparties. Liquidity risk Liquidity risk is the risk that an entity will encounter difficulty in raising funds to meet commitments associated with financial instruments. We manage liquidity risk by maintaining adequate reserves and borrowing facilities and by continuously monitoring forecast and actual cash flows. Economic conditions in the product tanker market were challenging during the year ended December 31, 2018, with freight rates at their lowest levels since 2009, resulting in the incurrence of significant losses during that period. In the month of December 2018 and into the first quarter of 2019, economic conditions in the product tanker market have improved, and, as described in Note 16, we have also raised $319.6 million in additional liquidity in an underwritten offering of our common shares. Our Senior Unsecured Notes due 2019 and Convertible Notes due 2019 are scheduled to mature in June and July of 2019, respectively. While we believe our current financial position is adequate to address the maturity of these instruments, a deterioration in economic conditions could cause us to pursue other means to raise liquidity, such as through the sale of vessels, to meet these obligations. Moreover, a deterioration in economic conditions could cause us to breach our debt covenants, and could have a material adverse effect on our business, results of operations, cash flows and financial condition Based on internal forecasts and projections, which take into account reasonably possible changes in our trading performance, we believe that we have adequate financial resources to continue in operation and meet our financial commitments (including but not limited to newbuilding installments, debt service obligations and charterhire commitments) for a period of at least twelve months from the date of approval of these consolidated financial statements. Accordingly, we continue to adopt the going concern basis in preparing our financial statements. Remaining contractual maturity on secured and unsecured credit facilities The following table details our remaining contractual maturity for our secured and unsecured credit facilities and lease financing arrangements. The amounts represent the future undiscounted cash flows of the financial liability based on the earliest date on which we can be required to pay. The table includes both interest and principal cash flows. As the interest cash flows are not fixed, the interest amount included has been determined by reference to the projected interest rates as illustrated by the yield curves existing at the reporting date. As of December 31, In thousands of U.S. dollars 2018 2017 Less than 1 month $ 18,994 $ 24,868 1-3 months 140,710 65,294 3 months to 1 year 419,070 219,144 1-3 years 1,049,739 1,215,144 3-5 years 1,095,717 1,222,889 5+ years 910,050 684,330 Total $ 3,634,280 $ 3,431,669 All other current liabilities fall due within less than one month. Foreign Exchange Rate Risk Our primary economic environment is the international shipping market. This market utilizes the U.S. Dollar as its functional currency. Consequently, virtually all of our revenues and the majority of our operating expenses are in U.S. Dollars. However, we incur some of our combined expenses in other currencies, particularly the Euro. The amount and frequency of some of these expenses (such as vessel repairs, supplies and stores) may fluctuate from period to period. Depreciation in the value of the U.S. dollar relative to other currencies will increase the U.S. dollar cost of us paying such expenses. The portion of our business conducted in other currencies could increase in the future, which could expand our exposure to losses arising from currency fluctuations. There is a risk that currency fluctuations will have a negative effect on our cash flows. We have not entered into any hedging contracts to protect against currency fluctuations. However, we have some ability to shift the purchase of goods and services from one country to another and, thus, from one currency to another, on relatively short notice. We may seek to hedge this currency fluctuation risk in the future.

Subsequent events

Subsequent events	12 Months Ended
	Dec. 31, 2018
Events After Reporting Period [Abstract]
Subsequent events	Subsequent events January 2019 Reverse Stock Split On January 18, 2019, the Company effected a one-for-ten reverse stock split. The Company's shareholders approved the reverse stock split including the change in authorized common shares at the Company's special meeting of shareholders held on January 15, 2019. Pursuant to this reverse stock split, the total number of authorized common shares was reduced to 150,000,000 shares and the number of common shares outstanding was reduced from 513,975,324 shares to 51,397,470 shares (which reflects adjustments for fractional share settlements). The par value of the common shares was not adjusted as a result of the reverse stock split. All share and per share information contained in these consolidated financial statements has been retroactively adjusted to reflect the reverse stock split. Declaration of Dividend On February 13, 2019, the Company's Board of Directors declared a quarterly cash dividend of $0.10 per common share payable on or about March 28, 2019 to all shareholders of record as of March 13, 2019 (the record date). As of March 15, 2019 , there were 51,396,970 common shares outstanding. Convertible Notes due 2019 and Convertible Notes due 2022 On March 13, 2019, the conversion rates of the Convertible Notes due 2019 and Convertible Notes due 2022 were adjusted to reflect the Company's expected payment of a cash dividend on or about March 28, 2019 to all shareholders of record as of March 13, 2019. The new conversion rates for the Convertible Notes due 2019 and Convertible Notes due 2022 are 10.1110 and 25.4799 shares, respectively, of the Company's common shares representing an increase of the prior conversion rate of 0.0570 and 0.1437 shares, respectively, for each $1,000 principal amount of the Convertible Notes due 2019 and Convertible Notes due 2022. 2013 Equity Incentive Plan On February 28, 2019, the Company's Board of Directors approved the reloading of the 2013 Equity Incentive Plan and reserved an additional 86,977 common shares, par value $0.01 per share, for issuance pursuant to the plan. Securities Repurchase Program In March 2019, the Company repurchased $2.3 million face value of its Convertible Notes due 2019 at an average price of $990.00 per $1,000 principal amount, or $2.3 million . The Company had $121.6 million remaining under the Securities Repurchase Program as of March 15, 2019 . The Company expects to repurchase any securities in the open market, at times and prices that are considered to be appropriate, but it is not obligated under the terms of the program to repurchase any securities. Redemption of Senior Notes due 2019 On March 18, 2019 ("the Redemption Date"), the Company redeemed the entire outstanding balance of the Senior Notes Due 2019. The redemption price of the Senior Notes Due 2019 was equal to 100% of the principal amount to be redeemed, plus accrued and unpaid interest to, but excluding, the Redemption Date.

General information and signi_2

General information and significant accounting policies (Policies)	12 Months Ended
	Dec. 31, 2018
Corporate Information And Statement Of IFRS Compliance [Abstract]
Disclosure of significant accounting policies	General information and significant accounting policies Company Scorpio Tankers Inc. and its subsidiaries (together “we”, “our” or the “Company”) are engaged in the seaborne transportation of refined petroleum products in the international shipping markets. Scorpio Tankers Inc. was incorporated in the Republic of the Marshall Islands on July 1, 2009. On April 6, 2010, we closed on our initial public offering, and the common stock currently trades on the New York Stock Exchange under the symbol STNG. Our fleet as of December 31, 2018 consisted of 109 owned or finance leased product tankers ( 14 Handymax, 45 MR, 12 LR1 and 38 LR2) and 11 time or bareboat chartered-in product tankers ( seven Handymax and four MR). Our vessels are commercially managed by Scorpio Commercial Management S.A.M., or SCM, which is majority owned by the Lolli-Ghetti family of which Mr. Emanuele Lauro, our Chairman and Chief Executive Officer, and Mr. Filippo Lauro, our Vice President, are members. SCM’s services include securing employment, in pools, in the spot market, and on time charters. Our vessels are technically managed by Scorpio Ship Management S.A.M., or SSM, which is majority owned by the Lolli-Ghetti family. SSM facilitates vessel support such as crew, provisions, deck and engine stores, insurance, maintenance and repairs, and other services necessary to operate the vessels such as drydocks and vetting/inspection under a technical management agreement. We also have an administrative services agreement with Scorpio Services Holding Limited, or SSH, which is majority owned by the Lolli-Ghetti family. The administrative services provided under this agreement primarily include accounting, legal compliance, financial, information technology services, and the provision of administrative staff and office space, which are contracted to subsidiaries of SSH. We pay our managers fees for these services and reimburse them for direct or indirect expenses that they incur in providing these services. Basis of accounting The consolidated financial statements incorporate the financial statements of Scorpio Tankers Inc. and its subsidiaries. The consolidated financial statements have been presented in United States dollars, or USD or $, which is the functional currency of Scorpio Tankers Inc. and all its subsidiaries, and have been authorized for issue by the Board of Directors on March 15, 2019 . The consolidated financial statements have been prepared in accordance with International Financial Reporting Standards, or IFRS, as issued by the International Accounting Standards Board and on a historical cost basis, except for the revaluation of certain financial instruments. All inter-company transactions, balances, income and expenses were eliminated on consolidation. Reverse stock split On January 18, 2019, the Company effected a one-for-ten reverse stock split. All share and per share information has been retroactively adjusted to reflect the reverse stock split. The par value was not adjusted as a result of the reverse stock split. Going concern The financial statements have been prepared in accordance with the going concern basis of accounting as described further in the “Liquidity risk” section of Note 24. Significant Accounting Policies The following is a discussion of our significant accounting policies that were in effect during the years ended December 31, 2018 , 2017 and 2016 . Revenue recognition Beginning on January 1, 2018, we changed the methodology for recognizing revenue and voyage expenses related to certain revenue streams to comply with the new accounting standards. IFRS 15, Revenue from Contracts with Customers, was issued by the International Accounting Standards Board on May 28, 2014. IFRS 15 amends the existing accounting standards for revenue recognition and is based on principles that govern the recognition of revenue at an amount an entity expects to be entitled when products or services are transferred to customers. IFRS 15 applies to an entity's first annual IFRS financial statements for a period beginning on or after January 1, 2018. The standard may be applied retrospectively to each prior period presented or retrospectively with the cumulative effect recognized as of the date of adoption (the “modified retrospective method”). We have applied the modified retrospective method upon the date of transition. Revenue earned by our vessels is comprised of pool revenue, time charter revenue and voyage revenue. (1) Pool revenue for each vessel is determined in accordance with the profit sharing terms specified within each pool agreement. In particular, the pool manager aggregates the revenues and expenses of all of the pool participants and distributes the net earnings to participants based on: • the pool points attributed to each vessel (which are determined by vessel attributes such as cargo carrying capacity, fuel consumption, and construction characteristics); and • the number of days the vessel participated in the pool in the period . (2) Time charter agreements are when our vessels are chartered to customers for a fixed period of time at rates that are generally fixed, but may contain a variable component based on inflation, interest rates, or current market rates. (3) Voyage charter agreements are charter hires, where a contract is made in the spot market for the use of a vessel for a specific voyage for a specified charter rate. Of these revenue streams, revenue generated from voyage charter agreements is within the scope of IFRS 15. Revenue generated from pools and time charters is accounted for as revenue earned under operating leases. Accordingly, the implementation of IFRS 15 did not have an effect on the revenue recognized from the pools or time charters, however these arrangements will be impacted by IFRS 16, Leases, which is effective for annual periods beginning on or after January 1, 2019 and is discussed further below. The accounting for our different revenue streams is as follows: Spot market revenue For vessels operating in the spot market, we recognize revenue ‘over time’ as the customer (i.e. the charterer) is simultaneously receiving and consuming the benefits of the vessel. Under IFRS 15, the time period over which revenue is recognized has changed from the previous accounting standard. Prior to the effective date of IFRS 15, revenue from voyage charter agreements was recognized as voyage revenue on a pro-rata basis over the duration of the voyage on a discharge to discharge basis. In the application of this policy, we did not begin recognizing revenue until (i) the amount of revenue could be measured reliably, (ii) it was probable that the economic benefits associated with the transaction would flow to the entity, (iii) the transactions stage of completion at the balance sheet date could be measured reliably, and (iv) the costs incurred and the costs to complete the transaction could be measured reliably. However, under IFRS 15, the performance obligation has been identified as the transportation of cargo from one point to another. Therefore, in a spot market voyage under IFRS 15, revenue is now recognized on a pro-rata basis commencing on the date that the cargo is loaded and concluding on the date of discharge. At December 31, 2017, we had two vessels operating in the spot market and the cumulative effect of the application of IFRS 15 under the modified retrospective method resulted in a $3,888 reduction in the opening balance of accumulated deficit on January 1, 2018. The following table summarizes the impact of adopting IFRS 15 on the Company's statement of income or loss and statement of comprehensive income or loss for the year ended December 31, 2018 for each of the line items affected. There was no impact on the Company's balance sheet at December 31, 2018 as the Company did not have any vessels operating in the spot market on that date. Additionally, there was no material impact on the statement of cash flows for the year ended December 31, 2018. In thousands of U.S. dollars Amounts after adoption of IFRS 15 Adjustments Amounts without adoption of IFRS 15 Revenue Vessel revenue $ 585,047 $ (173 ) $ 584,874 Operating expenses Voyage expenses (5,146 ) 177 (4,969 ) Total operating expenses (574,505 ) 177 (574,328 ) Net loss $ (190,071 ) $ 4 $ (190,067 ) Total comprehensive loss $ (190,071 ) $ 4 $ (190,067 ) Pool revenue We recognize pool revenue on a monthly basis, when the vessel has participated in a pool during the period and the amount of pool revenue for the month can be estimated reliably. We receive estimated vessel earnings based on the known number of days the vessel has participated in the pool, the contract terms, and the estimated monthly pool revenue. On a quarterly basis, we receive a report from the pool which identifies the number of days the vessel participated in the pool, the total pool points for the period, the total pool revenue for the period, and the calculated share of pool revenue for the vessel. We review the quarterly report for consistency with each vessel’s pool agreement and vessel management records. The estimated pool revenue is reconciled quarterly, coinciding with our external reporting periods, to the actual pool revenue earned, per the pool report. Consequently, in our financial statements, reported revenues represent actual pooled revenues. While differences do arise in the performance of these quarterly reconciliations, such differences are not material to total reported revenues. Time charter revenue Time charter revenue is recognized as services are performed based on the daily rates specified in the time charter contract. Voyage expenses Voyage expenses primarily include bunkers, port charges, canal tolls, cargo handling operations and brokerage commissions paid by us under voyage charters. Prior to the implementation of IFRS 15 on January 1, 2018, voyage costs were expensed ratably over the estimated length of each voyage, which can be allocated between reporting periods based on the timing of the voyage. The impact of recognizing voyage expenses ratably over the length of each voyage was not materially different on a quarterly and annual basis from a method of recognizing such costs as incurred. Consistent with our revenue recognition for voyage charters prior to the implementation of IFRS 15, voyage expenses were calculated on a discharge-to-discharge basis. Beginning on January 1, 2018, we changed the methodology for recognizing revenue and voyage expenses to comply with IFRS 15. Under IFRS 15, voyage costs incurred in the fulfillment of a voyage charter are deferred and amortized over the course of the charter commencing on the date that the cargo is loaded and concluding on the date of discharge. Voyage costs are only deferred if they (i) relate directly to such charter, (ii) generate or enhance resources to be used in meeting obligations under the charter and (iii) are expected to be recovered. The procurement of these services is managed on our behalf by our commercial manager, SCM (see Note 17). Vessel operating costs Vessel operating costs, which include crewing, repairs and maintenance, insurance, stores, lubricating oil consumption, communication expenses, and technical management fees, are expensed as incurred for vessels that are owned, finance leased or bareboat chartered-in. The procurement of these services is managed on our behalf by our technical manager, SSM (see Note 17). (Loss) / earnings per share Basic (loss) / earnings per share is calculated by dividing net (loss) / income attributable to equity holders of the parent by the weighted average number of common shares outstanding. Diluted (loss) / earnings per share is calculated by adjusting the net (loss) / income attributable to equity holders of the parent and the weighted average number of common shares used for calculating basic (loss) / earnings per share for the effects of all potentially dilutive shares. Such dilutive common shares are excluded when the effect would be to reduce a loss per share or increase earnings per share. In the years ended December 31, 2018 , 2017 and 2016 , there were potentially dilutive items as a result of our Equity Incentive Plans (see Note 16), our convertible senior notes due 2019, or Convertible Notes due 2019, and our convertible senior notes due 2022, or Convertible Notes due 2022, (as described in Note 13). Potentially dilutive items related to our Equity Incentive Plans, Convertible Notes due 2019 and Convertible Notes due 2022 were excluded from the composition of diluted earnings per share for the years ended December 31, 2018 , December 31, 2017 and December 31, 2016 because their effect would have been anti-dilutive. We apply the if-converted method when determining diluted (loss) / earnings per share. This requires the assumption that all potential ordinary shares have been converted into ordinary shares at the beginning of the period or, if not in existence at the beginning of the period, the date of the issue of the financial instrument or the granting of the rights by which they are granted. Under this method, once potential ordinary shares are converted into ordinary shares during the period, the dividends, interest and other expense associated with those potential ordinary shares will no longer be incurred. The effect of conversion, therefore, is to increase income (or reduce losses) attributable to ordinary equity holders as well as the number of shares in issue. Conversion will not be assumed for purposes of computing diluted earnings per share if the effect would be anti-dilutive. Charterhire expense Charterhire expense is the amount we pay to vessel owners to time or bareboat charter-in vessels. The amount is usually for a fixed period of time at rates that are generally fixed, but may contain a variable component based on inflation, interest rates, profit sharing or current market rates. In a time charter-in arrangement, the vessel’s owner is responsible for crewing and other vessel operating costs, whereas these costs are the responsibility of the charterer in a bareboat charter-in arrangement. Charterhire expense is recognized ratably over the charterhire period. Operating leases Costs in respect of operating leases are charged to the consolidated statement of income or loss on a straight line basis over the lease term. Foreign currencies The individual financial statements of Scorpio Tankers Inc. and each of its subsidiaries are presented in the currency of the primary economic environment in which we operate (its functional currency), which in all cases is U.S. dollars. For the purpose of the consolidated financial statements, our results and financial position are also expressed in U.S. dollars. In preparing the financial statements of Scorpio Tankers Inc. and each of its subsidiaries, transactions in currencies other than the U.S. dollar are recorded at the rate of exchange prevailing on the dates of the transactions. At the end of each reporting period, monetary assets and liabilities denominated in other currencies are retranslated into the functional currency at rates ruling at that date. All resultant exchange differences have been recognized in the consolidated statements of income or loss. The amounts charged to the consolidated statements of income or loss during the years ended December 31, 2018 , 2017 and 2016 were not material. Segment reporting During the years ended December 31, 2018 , 2017 and 2016 , we owned, finance leased or chartered-in vessels spanning four different vessel classes, Handymax, MR, LR1/Panamax and LR2/Aframax, all of which earn revenues in the seaborne transportation of refined petroleum products in the international shipping markets. Each vessel within its respective class qualifies as an operating segment under IFRS. However, each vessel also exhibits similar long-term financial performance and similar economic characteristics to the other vessels within the respective vessel class, thereby meeting the aggregation criteria in IFRS. We have therefore chosen to present our segment information by vessel class using the aggregated information from the individual vessels. Segment results are evaluated based on reported net income or loss from each segment. The accounting policies applied to the reportable segments are the same as those used in the preparation of our consolidated financial statements. It is not practical to report revenue or non-current assets on a geographical basis due to the international nature of the shipping market. Vessels under construction Vessels under construction are measured at cost and include costs incurred that are directly attributable to bringing the asset to the location and condition necessary for it to be capable of operating in the manner intended by management. These costs include installment payments made to the shipyards, directly attributable financing costs, professional fees and other costs deemed directly attributable to the construction of the asset. We had no vessels under construction as of December 31, 2018 . As of December 31, 2017 , we had two vessels under construction. Vessels and drydock Our fleet is measured at cost, which includes directly attributable financing costs and the cost of work undertaken to enhance the capabilities of the vessels, less accumulated depreciation and impairment losses. Depreciation is calculated on a straight-line basis to the estimated residual value over the anticipated useful life of the vessel from date of delivery. Vessels under construction are not depreciated until such time as they are ready for use. The residual value is estimated as the lightweight tonnage of each vessel multiplied by scrap value per ton. The scrap value per ton is estimated taking into consideration the historical four -year average scrap market rates available at the balance sheet date with changes accounted for in the period of change and in future periods. The vessels are required to undergo planned drydocks for replacement of certain components, major repairs and maintenance of other components, which cannot be carried out while the vessels are operating, approximately every 30 months or 60 months depending on the nature of work and external requirements. These drydock costs are capitalized and depreciated on a straight-line basis over the estimated period until the next drydock. In deferred drydocking, we only include direct costs that are incurred as part of the drydocking to meet regulatory requirements, or are expenditures that add economic life to the vessel, increase the vessel’s earnings capacity or improve the vessel’s efficiency. Direct costs include shipyard costs as well as the costs of placing the vessel in the shipyard. Expenditures for normal maintenance and repairs, whether incurred as part of the drydocking or not, are expensed as incurred. For an acquired or newly built vessel, a notional drydock component is allocated from the vessel’s cost. The notional drydock cost is estimated by us, based on the expected costs related to the next drydock, which is based on experience and past history of similar vessels, and carried separately from the cost of the vessel. Subsequent drydocks are recorded at actual cost incurred. The drydock component is depreciated on a straight-line basis to the next estimated drydock. The estimated amortization period for a drydock is based on the estimated period between drydocks. When the drydock expenditure is incurred prior to the expiry of the period, the remaining balance is expensed. Business combinations In May 2017, we entered into definitive agreements to acquire Navig8 Product Tankers Inc. ("NPTI"), including its fleet of 12 LR1 and 15 LR2 product tankers for approximately 5.5 million common shares of the Company and the assumption of NPTI's debt (herein referred to as "the Merger"). On June 14, 2017, we acquired part of NPTI’s business with the acquisition of four LR1 product tankers (the “NPTI Vessel Acquisition”) through the acquisition of entities holding those vessels and related debt for an acquisition price of $42.2 million in cash. On September 1, 2017, all conditions precedent were lifted and we acquired NPTI's remaining business including eight LR1 and 15 LR2 tankers (the "September Closing") when the Merger closed. We have accounted for these transactions as business combinations using the acquisition method of accounting as set forth in IFRS 3 Business Combinations, with the Company determined as the accounting acquirer under this guidance. Accordingly, we have measured the identifiable assets acquired and the liabilities assumed at their acquisition date fair values. The consideration transferred has been measured at fair value, with the fair value of the approximately 5.5 million common shares issued in September 2017 based on the price of such shares on the date of acquisition. The difference between the fair value of the net assets acquired and the fair value of the consideration transferred has been recorded as a bargain purchase gain with respect to the acquisition of the four LR1 tankers in June 2017 and goodwill with respect to the acquisition of the remaining fleet in September 2017. Acquisition related costs have been expensed as incurred. This transaction is further described in Note 2. Impairment of goodwill Goodwill arising from the September Closing has been allocated to the cash generating units within each of the respective operating segments that are expected to benefit from the synergies of the Merger (LR2s and LR1s). Goodwill is not amortized and is tested annually ('or more frequently, if impairment indicators arise') by comparing the aggregate carrying amount of the cash generating units in each respective operating segment, plus the allocated goodwill, to their recoverable amounts. Recoverable amount is the higher of the fair value less cost to sell ('determined by taking into consideration two independent broker valuations for each vessel within each segment') and value in use. In assessing value in use, the estimated future cash flows of the operating segment are discounted to their present value using a pre-tax discount rate that reflects current market assessments of the time value of money and the risks specific to the operating segment for which the estimates of future cash flows have not been adjusted. If the recoverable amount is determined to be less than the aggregate carrying amount of the assets in each respective operating segment, plus goodwill, then goodwill is reduced to the lower of the recoverable amount or zero. An impairment loss is recognized as an expense immediately. The carrying value of our vessels, drydock and vessels under construction is reviewed for impairment separately, as described below. Impairment of vessels, drydock and vessels under construction At each balance sheet date, we review the carrying amount of our vessels and drydock and vessels under construction to determine whether there is any indication that those assets have suffered an impairment loss. If any such indication exists, the recoverable amount of the vessels and drydock and vessels under construction is estimated in order to determine the extent of the impairment loss (if any). We treat each vessel and the related drydock as a cash generating unit. Recoverable amount is the higher of the fair value less cost to sell (determined by taking into consideration two independent broker valuations) and value in use. In assessing value in use, the estimated future cash flows are discounted to their present value using a pre-tax discount rate that reflects current market assessments of the time value of money and the risks specific to the asset for which the estimates of future cash flows have not been adjusted. If the recoverable amount of the cash generating unit is estimated to be less than its carrying amount, the carrying amount of the cash-generating unit is reduced to its recoverable amount. An impairment loss is recognized as an expense immediately. Where an impairment loss subsequently reverses, the carrying amount of the cash generating unit is increased to the revised estimate of its recoverable amount, but so that the increased carrying amount does not exceed the carrying amount that would have been determined had no impairment loss been recognized for the cash generating unit in the prior years. A reversal of impairment is recognized as income immediately. Inventories Inventories consist of lubricating oils and other items including stock provisions, and are stated at the lower of cost and net realizable value. Cost is determined using the first in first out method. Stores and spares are charged to vessel operating costs when purchased. Borrowing costs Borrowing costs directly attributable to the acquisition, construction or production of qualifying assets, which are assets that necessarily take a substantial period of time (for example, the time period necessary to construct a vessel) to get ready for their intended use or sale, are added to the cost of those assets, until such time as the assets are substantially ready for their intended use or sale. To the extent that variable rate borrowings are used to finance a qualifying asset and are hedged in an effective cash flow hedge of interest rate risk, the effective portion of the derivative is recognized in other comprehensive income and released to income or loss when the qualifying asset impacts income or loss. To the extent that fixed rate borrowings are used to finance a qualifying asset and are hedged in an effective fair value hedge of interest rate risk, the capitalized borrowing costs reflect the hedged interest rate. Investment income earned on the temporary investment of specific borrowings pending their expenditure on qualifying assets is deducted from the borrowing costs eligible for capitalization. All other borrowing costs are recognized in the consolidated statement of income or loss in the period in which they are incurred. Financial instruments IFRS 9, Financial instruments , sets out requirements for recognizing and measuring financial assets, financial liabilities and some contracts to buy or sell non-financial items. This standard replaces IAS 39 Financial Instruments: Recognition and Measurement and is effective for annual periods beginning on or after January 1, 2018. The adoption of this standard did not have a material impact on these consolidated financial statements. Financial assets and financial liabilities are recognized in our balance sheet when we become a party to the contractual provisions of the instrument. Financial assets All financial assets are recognized and derecognized on a trade date where the purchase or sale of a financial asset is under a contract whose terms require delivery within the timeframe established by the market concerned, and are initially measured at fair value, plus transaction costs, except for those financial assets classified as at fair value through profit or loss, which are initially measured at fair value. Financial assets are classified into the following specified categories: financial assets "at fair value through profit or loss", or FVTPL, "at fair value through other comprehensive income" or at amortized costs on the basis of the Company’s business model for managing financial assets and the contractual cash flow characteristics of the financial asset. Income is recognized on an effective interest basis for debt instruments other than those financial assets classified as at FVTPL. Financial assets at amortized cost Financial assets are measured at amortized cost if both of the following conditions are met: • the financial asset is held within a business model whose objective is to hold financial assets in order to collect contractual cash flows; and • the contractual terms of the financial asset give rise on specified dates to cash flows that are solely payments of principal and interest on the principal amount outstanding. Financial assets at fair value through other comprehensive income Financial assets are measured at fair value through other comprehensive income if both of the following conditions are met: • the financial asset is held within a business model whose objective is achieved by both collecting contractual cash flows and selling financial assets; and • the contractual terms of the financial asset give rise on specified dates to cash flows that are solely payments of principal and interest on the principal amount outstanding. Financial assets at FVTPL Financial assets are classified as at FVTPL where the financial asset is held for trading. A financial asset is classified as held for trading if: • it has been acquired principally for the purpose of selling in the near future; or • it is a part of an identified portfolio of financial instruments that we manage together and has a recent actual pattern of short-term profit-taking; or • it is a derivative that is not designated and effective as a hedging instrument. Financial assets at FVTPL are stated at fair value, with any resultant gain or loss recognized in the statement of income or loss. The net gain or loss recognized in income or loss incorporates any dividend or interest earned on the financial asset. Fair value is determined in the manner described in Note 24. Accounts receivable Amounts due from the Scorpio Pools and other receivables that have fixed or determinable payments and are not quoted in an active market are classified as accounts receivable. Accounts receivable without a significant financing component are initially measured at their transaction price and subsequently measured at amortized cost using the effective interest method, less any impairment (as discussed below). Interest income is recognized by applying the effective interest rate, except for short-term receivables when the recognition of interest would be immaterial. Impairment of financial assets IFRS 9 replaces the 'incurred loss' model in IAS 39 with an 'expected credit loss' (ECL) model to determine and recognize impairments. ECLs are a probability-weighted estimate of credit losses and are measured as the present value of all cash shortfalls (i.e. the difference between cash flows due to the entity in accordance with the contract and cash flows that the Company expects to receive). ECLs are discounted at the effective interest rate of the financial asset. Under IFRS 9, credit losses are recognized earlier than under IAS 39. Under the general model to ECLs under IFRS 9, loss allowances are measured in two different ways: • 12-month ECLs : 12-month ECLs are the expected credit losses that may result from default events on a financial instrument that are possible within the 12 months after the reporting date. 12-month ECLs are utilized when a financial asset has a low credit risk at the reporting date or has not had a significant increase in credit risk since initial recognition. • Lifetime ECLs : these are ECLs that result from all possible default events over the expected life of a financial instrument. Lifetime ECLs are determined when an impaired financial asset has been purchased or originated or when there has been a significant increase in credit risk since initial recognition However, IFRS 9 requires operational simplifications for trade receivables, contract assets and lease receivables because they are often held by entities that do not have sophisticated credit risk management systems (i.e. the ‘simplified model’). These simplifications eliminate the need to calculate 12- month ECLs and to assess when a significant increase in credit risk has occurred. Under the simplified approach: • For trade receivables or contract assets that do not contain a significant financing component, the loss allowance is required to be measured at initial recognition and throughout the life of the receivable at an amount equal to lifetime ECL. • For finance lease receivables, operating lease receivables, or trade receivables or contract assets that do contain a significant financing component, IFRS 9 permits an entity to choose as its accounting policy to measure the loss allowance using the general model or the simplified model (i.e. at an amount equal to lifetime expected credit losses). We measure loss allowances for all trade and lease receivables under the simplified model using the lifetime ECL approach. When estimating ECLs, the Company considers reasonable and supportable information that is available without undue cost or effort at the reporting date about past events, current conditions and forecasts of future economic conditions. The application of the ECL requirements under IFRS 9 did not resu
Basis of accounting	Basis of accounting The consolidated financial statements incorporate the financial statements of Scorpio Tankers Inc. and its subsidiaries. The consolidated financial statements have been presented in United States dollars, or USD or $, which is the functional currency of Scorpio Tankers Inc. and all its subsidiaries, and have been authorized for issue by the Board of Directors on March 15, 2019 . The consolidated financial statements have been prepared in accordance with International Financial Reporting Standards, or IFRS, as issued by the International Accounting Standards Board and on a historical cost basis, except for the revaluation of certain financial instruments. All inter-company transactions, balances, income and expenses were eliminated on consolidation.
Reverse stock split	Reverse stock split On January 18, 2019, the Company effected a one-for-ten reverse stock split. All share and per share information has been retroactively adjusted to reflect the reverse stock split. The par value was not adjusted as a result of the reverse stock split.
Revenue recognition	Revenue recognition Beginning on January 1, 2018, we changed the methodology for recognizing revenue and voyage expenses related to certain revenue streams to comply with the new accounting standards. IFRS 15, Revenue from Contracts with Customers, was issued by the International Accounting Standards Board on May 28, 2014. IFRS 15 amends the existing accounting standards for revenue recognition and is based on principles that govern the recognition of revenue at an amount an entity expects to be entitled when products or services are transferred to customers. IFRS 15 applies to an entity's first annual IFRS financial statements for a period beginning on or after January 1, 2018. The standard may be applied retrospectively to each prior period presented or retrospectively with the cumulative effect recognized as of the date of adoption (the “modified retrospective method”). We have applied the modified retrospective method upon the date of transition. Revenue earned by our vessels is comprised of pool revenue, time charter revenue and voyage revenue. (1) Pool revenue for each vessel is determined in accordance with the profit sharing terms specified within each pool agreement. In particular, the pool manager aggregates the revenues and expenses of all of the pool participants and distributes the net earnings to participants based on: • the pool points attributed to each vessel (which are determined by vessel attributes such as cargo carrying capacity, fuel consumption, and construction characteristics); and • the number of days the vessel participated in the pool in the period . (2) Time charter agreements are when our vessels are chartered to customers for a fixed period of time at rates that are generally fixed, but may contain a variable component based on inflation, interest rates, or current market rates. (3) Voyage charter agreements are charter hires, where a contract is made in the spot market for the use of a vessel for a specific voyage for a specified charter rate. Of these revenue streams, revenue generated from voyage charter agreements is within the scope of IFRS 15. Revenue generated from pools and time charters is accounted for as revenue earned under operating leases. Accordingly, the implementation of IFRS 15 did not have an effect on the revenue recognized from the pools or time charters, however these arrangements will be impacted by IFRS 16, Leases, which is effective for annual periods beginning on or after January 1, 2019 and is discussed further below. The accounting for our different revenue streams is as follows: Spot market revenue For vessels operating in the spot market, we recognize revenue ‘over time’ as the customer (i.e. the charterer) is simultaneously receiving and consuming the benefits of the vessel. Under IFRS 15, the time period over which revenue is recognized has changed from the previous accounting standard. Prior to the effective date of IFRS 15, revenue from voyage charter agreements was recognized as voyage revenue on a pro-rata basis over the duration of the voyage on a discharge to discharge basis. In the application of this policy, we did not begin recognizing revenue until (i) the amount of revenue could be measured reliably, (ii) it was probable that the economic benefits associated with the transaction would flow to the entity, (iii) the transactions stage of completion at the balance sheet date could be measured reliably, and (iv) the costs incurred and the costs to complete the transaction could be measured reliably. However, under IFRS 15, the performance obligation has been identified as the transportation of cargo from one point to another. Therefore, in a spot market voyage under IFRS 15, revenue is now recognized on a pro-rata basis commencing on the date that the cargo is loaded and concluding on the date of discharge. At December 31, 2017, we had two vessels operating in the spot market and the cumulative effect of the application of IFRS 15 under the modified retrospective method resulted in a $3,888 reduction in the opening balance of accumulated deficit on January 1, 2018. The following table summarizes the impact of adopting IFRS 15 on the Company's statement of income or loss and statement of comprehensive income or loss for the year ended December 31, 2018 for each of the line items affected. There was no impact on the Company's balance sheet at December 31, 2018 as the Company did not have any vessels operating in the spot market on that date. Additionally, there was no material impact on the statement of cash flows for the year ended December 31, 2018. In thousands of U.S. dollars Amounts after adoption of IFRS 15 Adjustments Amounts without adoption of IFRS 15 Revenue Vessel revenue $ 585,047 $ (173 ) $ 584,874 Operating expenses Voyage expenses (5,146 ) 177 (4,969 ) Total operating expenses (574,505 ) 177 (574,328 ) Net loss $ (190,071 ) $ 4 $ (190,067 ) Total comprehensive loss $ (190,071 ) $ 4 $ (190,067 ) Pool revenue We recognize pool revenue on a monthly basis, when the vessel has participated in a pool during the period and the amount of pool revenue for the month can be estimated reliably. We receive estimated vessel earnings based on the known number of days the vessel has participated in the pool, the contract terms, and the estimated monthly pool revenue. On a quarterly basis, we receive a report from the pool which identifies the number of days the vessel participated in the pool, the total pool points for the period, the total pool revenue for the period, and the calculated share of pool revenue for the vessel. We review the quarterly report for consistency with each vessel’s pool agreement and vessel management records. The estimated pool revenue is reconciled quarterly, coinciding with our external reporting periods, to the actual pool revenue earned, per the pool report. Consequently, in our financial statements, reported revenues represent actual pooled revenues. While differences do arise in the performance of these quarterly reconciliations, such differences are not material to total reported revenues. Time charter revenue Time charter revenue is recognized as services are performed based on the daily rates specified in the time charter contract.
Voyage expenses, vessel operating costs, and charterhire expense	Charterhire expense Charterhire expense is the amount we pay to vessel owners to time or bareboat charter-in vessels. The amount is usually for a fixed period of time at rates that are generally fixed, but may contain a variable component based on inflation, interest rates, profit sharing or current market rates. In a time charter-in arrangement, the vessel’s owner is responsible for crewing and other vessel operating costs, whereas these costs are the responsibility of the charterer in a bareboat charter-in arrangement. Charterhire expense is recognized ratably over the charterhire period. Voyage expenses Voyage expenses primarily include bunkers, port charges, canal tolls, cargo handling operations and brokerage commissions paid by us under voyage charters. Prior to the implementation of IFRS 15 on January 1, 2018, voyage costs were expensed ratably over the estimated length of each voyage, which can be allocated between reporting periods based on the timing of the voyage. The impact of recognizing voyage expenses ratably over the length of each voyage was not materially different on a quarterly and annual basis from a method of recognizing such costs as incurred. Consistent with our revenue recognition for voyage charters prior to the implementation of IFRS 15, voyage expenses were calculated on a discharge-to-discharge basis. Beginning on January 1, 2018, we changed the methodology for recognizing revenue and voyage expenses to comply with IFRS 15. Under IFRS 15, voyage costs incurred in the fulfillment of a voyage charter are deferred and amortized over the course of the charter commencing on the date that the cargo is loaded and concluding on the date of discharge. Voyage costs are only deferred if they (i) relate directly to such charter, (ii) generate or enhance resources to be used in meeting obligations under the charter and (iii) are expected to be recovered. The procurement of these services is managed on our behalf by our commercial manager, SCM (see Note 17). Vessel operating costs Vessel operating costs, which include crewing, repairs and maintenance, insurance, stores, lubricating oil consumption, communication expenses, and technical management fees, are expensed as incurred for vessels that are owned, finance leased or bareboat chartered-in. The procurement of these services is managed on our behalf by our technical manager, SSM (see Note 17).
(Loss) / earnings per share	(Loss) / earnings per share Basic (loss) / earnings per share is calculated by dividing net (loss) / income attributable to equity holders of the parent by the weighted average number of common shares outstanding. Diluted (loss) / earnings per share is calculated by adjusting the net (loss) / income attributable to equity holders of the parent and the weighted average number of common shares used for calculating basic (loss) / earnings per share for the effects of all potentially dilutive shares. Such dilutive common shares are excluded when the effect would be to reduce a loss per share or increase earnings per share. In the years ended December 31, 2018 , 2017 and 2016 , there were potentially dilutive items as a result of our Equity Incentive Plans (see Note 16), our convertible senior notes due 2019, or Convertible Notes due 2019, and our convertible senior notes due 2022, or Convertible Notes due 2022, (as described in Note 13). Potentially dilutive items related to our Equity Incentive Plans, Convertible Notes due 2019 and Convertible Notes due 2022 were excluded from the composition of diluted earnings per share for the years ended December 31, 2018 , December 31, 2017 and December 31, 2016 because their effect would have been anti-dilutive. We apply the if-converted method when determining diluted (loss) / earnings per share. This requires the assumption that all potential ordinary shares have been converted into ordinary shares at the beginning of the period or, if not in existence at the beginning of the period, the date of the issue of the financial instrument or the granting of the rights by which they are granted. Under this method, once potential ordinary shares are converted into ordinary shares during the period, the dividends, interest and other expense associated with those potential ordinary shares will no longer be incurred. The effect of conversion, therefore, is to increase income (or reduce losses) attributable to ordinary equity holders as well as the number of shares in issue. Conversion will not be assumed for purposes of computing diluted earnings per share if the effect would be anti-dilutive.
Operating leases and lease financing	Lease Financing During the years ended December 31, 2018 and December 31, 2017, we entered into sale and leaseback transactions in which certain of our vessels were sold to a third party and then leased back to us under bareboat charter-in arrangements. In certain of these transactions, the criteria necessary to recognize a sale of these vessels were not met as the terms of these transactions were such that we never part with the risks and rewards incident to ownership of the vessel, which includes an assessment of the likelihood of the exercise of purchase options contained within the contracts. Accordingly, these transactions have been accounted for as financing arrangements, with the liability under each arrangement recorded at amortized cost using the effective interest method and the corresponding vessels recorded at cost, less accumulated depreciation, on our consolidated balance sheet. All of these arrangements are further described in Note 13. Conversely, certain of our other sale and leaseback transactions that were entered into during the year ended December 31, 2017 met the criteria as sales and operating leasebacks as set forth under IAS 17, Leases . Accordingly, the losses on the sales of these assets were recognized when the vessels were designated as held for sale. Operating leases Costs in respect of operating leases are charged to the consolidated statement of income or loss on a straight line basis over the lease term.
Foreign currencies	Foreign currencies The individual financial statements of Scorpio Tankers Inc. and each of its subsidiaries are presented in the currency of the primary economic environment in which we operate (its functional currency), which in all cases is U.S. dollars. For the purpose of the consolidated financial statements, our results and financial position are also expressed in U.S. dollars. In preparing the financial statements of Scorpio Tankers Inc. and each of its subsidiaries, transactions in currencies other than the U.S. dollar are recorded at the rate of exchange prevailing on the dates of the transactions. At the end of each reporting period, monetary assets and liabilities denominated in other currencies are retranslated into the functional currency at rates ruling at that date. All resultant exchange differences have been recognized in the consolidated statements of income or loss.
Segment reporting	Segment reporting During the years ended December 31, 2018 , 2017 and 2016 , we owned, finance leased or chartered-in vessels spanning four different vessel classes, Handymax, MR, LR1/Panamax and LR2/Aframax, all of which earn revenues in the seaborne transportation of refined petroleum products in the international shipping markets. Each vessel within its respective class qualifies as an operating segment under IFRS. However, each vessel also exhibits similar long-term financial performance and similar economic characteristics to the other vessels within the respective vessel class, thereby meeting the aggregation criteria in IFRS. We have therefore chosen to present our segment information by vessel class using the aggregated information from the individual vessels. Segment results are evaluated based on reported net income or loss from each segment. The accounting policies applied to the reportable segments are the same as those used in the preparation of our consolidated financial statements. It is not practical to report revenue or non-current assets on a geographical basis due to the international nature of the shipping market.
Vessels under construction	Vessels under construction Vessels under construction are measured at cost and include costs incurred that are directly attributable to bringing the asset to the location and condition necessary for it to be capable of operating in the manner intended by management. These costs include installment payments made to the shipyards, directly attributable financing costs, professional fees and other costs deemed directly attributable to the construction of the asset.
Vessels and drydock	Vessels and drydock Our fleet is measured at cost, which includes directly attributable financing costs and the cost of work undertaken to enhance the capabilities of the vessels, less accumulated depreciation and impairment losses. Depreciation is calculated on a straight-line basis to the estimated residual value over the anticipated useful life of the vessel from date of delivery. Vessels under construction are not depreciated until such time as they are ready for use. The residual value is estimated as the lightweight tonnage of each vessel multiplied by scrap value per ton. The scrap value per ton is estimated taking into consideration the historical four -year average scrap market rates available at the balance sheet date with changes accounted for in the period of change and in future periods. The vessels are required to undergo planned drydocks for replacement of certain components, major repairs and maintenance of other components, which cannot be carried out while the vessels are operating, approximately every 30 months or 60 months depending on the nature of work and external requirements. These drydock costs are capitalized and depreciated on a straight-line basis over the estimated period until the next drydock. In deferred drydocking, we only include direct costs that are incurred as part of the drydocking to meet regulatory requirements, or are expenditures that add economic life to the vessel, increase the vessel’s earnings capacity or improve the vessel’s efficiency. Direct costs include shipyard costs as well as the costs of placing the vessel in the shipyard. Expenditures for normal maintenance and repairs, whether incurred as part of the drydocking or not, are expensed as incurred. For an acquired or newly built vessel, a notional drydock component is allocated from the vessel’s cost. The notional drydock cost is estimated by us, based on the expected costs related to the next drydock, which is based on experience and past history of similar vessels, and carried separately from the cost of the vessel. Subsequent drydocks are recorded at actual cost incurred. The drydock component is depreciated on a straight-line basis to the next estimated drydock. The estimated amortization period for a drydock is based on the estimated period between drydocks. When the drydock expenditure is incurred prior to the expiry of the period, the remaining balance is expensed.
Business combinations and Impairment of goodwill	Business combinations In May 2017, we entered into definitive agreements to acquire Navig8 Product Tankers Inc. ("NPTI"), including its fleet of 12 LR1 and 15 LR2 product tankers for approximately 5.5 million common shares of the Company and the assumption of NPTI's debt (herein referred to as "the Merger"). On June 14, 2017, we acquired part of NPTI’s business with the acquisition of four LR1 product tankers (the “NPTI Vessel Acquisition”) through the acquisition of entities holding those vessels and related debt for an acquisition price of $42.2 million in cash. On September 1, 2017, all conditions precedent were lifted and we acquired NPTI's remaining business including eight LR1 and 15 LR2 tankers (the "September Closing") when the Merger closed. We have accounted for these transactions as business combinations using the acquisition method of accounting as set forth in IFRS 3 Business Combinations, with the Company determined as the accounting acquirer under this guidance. Accordingly, we have measured the identifiable assets acquired and the liabilities assumed at their acquisition date fair values. The consideration transferred has been measured at fair value, with the fair value of the approximately 5.5 million common shares issued in September 2017 based on the price of such shares on the date of acquisition. The difference between the fair value of the net assets acquired and the fair value of the consideration transferred has been recorded as a bargain purchase gain with respect to the acquisition of the four LR1 tankers in June 2017 and goodwill with respect to the acquisition of the remaining fleet in September 2017. Acquisition related costs have been expensed as incurred. This transaction is further described in Note 2. Impairment of goodwill Goodwill arising from the September Closing has been allocated to the cash generating units within each of the respective operating segments that are expected to benefit from the synergies of the Merger (LR2s and LR1s). Goodwill is not amortized and is tested annually ('or more frequently, if impairment indicators arise') by comparing the aggregate carrying amount of the cash generating units in each respective operating segment, plus the allocated goodwill, to their recoverable amounts. Recoverable amount is the higher of the fair value less cost to sell ('determined by taking into consideration two independent broker valuations for each vessel within each segment') and value in use. In assessing value in use, the estimated future cash flows of the operating segment are discounted to their present value using a pre-tax discount rate that reflects current market assessments of the time value of money and the risks specific to the operating segment for which the estimates of future cash flows have not been adjusted. If the recoverable amount is determined to be less than the aggregate carrying amount of the assets in each respective operating segment, plus goodwill, then goodwill is reduced to the lower of the recoverable amount or zero. An impairment loss is recognized as an expense immediately. The carrying value of our vessels, drydock and vessels under construction is reviewed for impairment separately, as described below.
Impairment of vessels, drydock and vessels under construction	Impairment of vessels, drydock and vessels under construction At each balance sheet date, we review the carrying amount of our vessels and drydock and vessels under construction to determine whether there is any indication that those assets have suffered an impairment loss. If any such indication exists, the recoverable amount of the vessels and drydock and vessels under construction is estimated in order to determine the extent of the impairment loss (if any). We treat each vessel and the related drydock as a cash generating unit. Recoverable amount is the higher of the fair value less cost to sell (determined by taking into consideration two independent broker valuations) and value in use. In assessing value in use, the estimated future cash flows are discounted to their present value using a pre-tax discount rate that reflects current market assessments of the time value of money and the risks specific to the asset for which the estimates of future cash flows have not been adjusted. If the recoverable amount of the cash generating unit is estimated to be less than its carrying amount, the carrying amount of the cash-generating unit is reduced to its recoverable amount. An impairment loss is recognized as an expense immediately. Where an impairment loss subsequently reverses, the carrying amount of the cash generating unit is increased to the revised estimate of its recoverable amount, but so that the increased carrying amount does not exceed the carrying amount that would have been determined had no impairment loss been recognized for the cash generating unit in the prior years. A reversal of impairment is recognized as income immediately.
Inventories	Inventories Inventories consist of lubricating oils and other items including stock provisions, and are stated at the lower of cost and net realizable value. Cost is determined using the first in first out method. Stores and spares are charged to vessel operating costs when purchased.
Borrowing costs	Borrowing costs Borrowing costs directly attributable to the acquisition, construction or production of qualifying assets, which are assets that necessarily take a substantial period of time (for example, the time period necessary to construct a vessel) to get ready for their intended use or sale, are added to the cost of those assets, until such time as the assets are substantially ready for their intended use or sale. To the extent that variable rate borrowings are used to finance a qualifying asset and are hedged in an effective cash flow hedge of interest rate risk, the effective portion of the derivative is recognized in other comprehensive income and released to income or loss when the qualifying asset impacts income or loss. To the extent that fixed rate borrowings are used to finance a qualifying asset and are hedged in an effective fair value hedge of interest rate risk, the capitalized borrowing costs reflect the hedged interest rate. Investment income earned on the temporary investment of specific borrowings pending their expenditure on qualifying assets is deducted from the borrowing costs eligible for capitalization. All other borrowing costs are recognized in the consolidated statement of income or loss in the period in which they are incurred.
Financial instruments	Financial instruments IFRS 9, Financial instruments , sets out requirements for recognizing and measuring financial assets, financial liabilities and some contracts to buy or sell non-financial items. This standard replaces IAS 39 Financial Instruments: Recognition and Measurement and is effective for annual periods beginning on or after January 1, 2018. The adoption of this standard did not have a material impact on these consolidated financial statements. Financial assets and financial liabilities are recognized in our balance sheet when we become a party to the contractual provisions of the instrument.
Financial assets	Financial assets All financial assets are recognized and derecognized on a trade date where the purchase or sale of a financial asset is under a contract whose terms require delivery within the timeframe established by the market concerned, and are initially measured at fair value, plus transaction costs, except for those financial assets classified as at fair value through profit or loss, which are initially measured at fair value. Financial assets are classified into the following specified categories: financial assets "at fair value through profit or loss", or FVTPL, "at fair value through other comprehensive income" or at amortized costs on the basis of the Company’s business model for managing financial assets and the contractual cash flow characteristics of the financial asset. Income is recognized on an effective interest basis for debt instruments other than those financial assets classified as at FVTPL. Financial assets at amortized cost Financial assets are measured at amortized cost if both of the following conditions are met: • the financial asset is held within a business model whose objective is to hold financial assets in order to collect contractual cash flows; and • the contractual terms of the financial asset give rise on specified dates to cash flows that are solely payments of principal and interest on the principal amount outstanding. Financial assets at fair value through other comprehensive income Financial assets are measured at fair value through other comprehensive income if both of the following conditions are met: • the financial asset is held within a business model whose objective is achieved by both collecting contractual cash flows and selling financial assets; and • the contractual terms of the financial asset give rise on specified dates to cash flows that are solely payments of principal and interest on the principal amount outstanding. Financial assets at FVTPL Financial assets are classified as at FVTPL where the financial asset is held for trading. A financial asset is classified as held for trading if: • it has been acquired principally for the purpose of selling in the near future; or • it is a part of an identified portfolio of financial instruments that we manage together and has a recent actual pattern of short-term profit-taking; or • it is a derivative that is not designated and effective as a hedging instrument. Financial assets at FVTPL are stated at fair value, with any resultant gain or loss recognized in the statement of income or loss. The net gain or loss recognized in income or loss incorporates any dividend or interest earned on the financial asset. Fair value is determined in the manner described in Note 24.
Accounts receivable	Accounts receivable Amounts due from the Scorpio Pools and other receivables that have fixed or determinable payments and are not quoted in an active market are classified as accounts receivable. Accounts receivable without a significant financing component are initially measured at their transaction price and subsequently measured at amortized cost using the effective interest method, less any impairment (as discussed below). Interest income is recognized by applying the effective interest rate, except for short-term receivables when the recognition of interest would be immaterial.
Impairment of financial assets	Impairment of financial assets IFRS 9 replaces the 'incurred loss' model in IAS 39 with an 'expected credit loss' (ECL) model to determine and recognize impairments. ECLs are a probability-weighted estimate of credit losses and are measured as the present value of all cash shortfalls (i.e. the difference between cash flows due to the entity in accordance with the contract and cash flows that the Company expects to receive). ECLs are discounted at the effective interest rate of the financial asset. Under IFRS 9, credit losses are recognized earlier than under IAS 39. Under the general model to ECLs under IFRS 9, loss allowances are measured in two different ways: • 12-month ECLs : 12-month ECLs are the expected credit losses that may result from default events on a financial instrument that are possible within the 12 months after the reporting date. 12-month ECLs are utilized when a financial asset has a low credit risk at the reporting date or has not had a significant increase in credit risk since initial recognition. • Lifetime ECLs : these are ECLs that result from all possible default events over the expected life of a financial instrument. Lifetime ECLs are determined when an impaired financial asset has been purchased or originated or when there has been a significant increase in credit risk since initial recognition However, IFRS 9 requires operational simplifications for trade receivables, contract assets and lease receivables because they are often held by entities that do not have sophisticated credit risk management systems (i.e. the ‘simplified model’). These simplifications eliminate the need to calculate 12- month ECLs and to assess when a significant increase in credit risk has occurred. Under the simplified approach: • For trade receivables or contract assets that do not contain a significant financing component, the loss allowance is required to be measured at initial recognition and throughout the life of the receivable at an amount equal to lifetime ECL. • For finance lease receivables, operating lease receivables, or trade receivables or contract assets that do contain a significant financing component, IFRS 9 permits an entity to choose as its accounting policy to measure the loss allowance using the general model or the simplified model (i.e. at an amount equal to lifetime expected credit losses). We measure loss allowances for all trade and lease receivables under the simplified model using the lifetime ECL approach. When estimating ECLs, the Company considers reasonable and supportable information that is available without undue cost or effort at the reporting date about past events, current conditions and forecasts of future economic conditions. The application of the ECL requirements under IFRS 9 did not result in the recognition of an impairment charge under the new impairment model. This determination was made on the basis that most of our vessels operate in the Scorpio Pools and the Company has never experienced a historical credit loss of amounts due from the Scorpio Pools. This determination also considers reasonable and supportable information about current conditions and forecast future economic conditions
Cash and cash equivalents	Cash and cash equivalents Cash and cash equivalents comprise cash on hand and demand deposits, and other short-term highly-liquid investments with original maturities of three months or less, that are readily convertible to a known amount of cash and are subject to an insignificant risk of changes in value. The carrying value of cash and cash equivalents approximates fair value due to the short-term nature of these instruments.
Restricted cash	Restricted cash During 2018 , we placed deposits in debt service reserve accounts under the terms and conditions set forth under our 2017 Credit Facility. Additionally, as part of the acquisition of NPTI and the assumption of NPTI's indebtedness (as further described in Note 13), we are required to maintain debt service reserve accounts under certain of NPTI's secured credit facilities and sale leaseback arrangements. Funds held in these accounts will be released upon the maturity of such facilities and have accordingly been accounted for as non-current restricted cash on our consolidated balance sheet.
Financial liabilities	Financial liabilities Financial liabilities are classified as either financial liabilities at amortized cost or financial liabilities at FVTPL. Financial liabilities at amortized cost Financial liabilities, including borrowings, are initially measured at fair value, net of transaction costs. Other financial liabilities are subsequently measured at amortized cost using the effective interest method. Financial liabilities at FVTPL Financial liabilities not classified at amortized cost are classified as FVTPL. Financial liabilities at FVTPL are stated at fair value, with any resultant gain or loss recognized in the Statement of Income or Loss. The net gain or loss recognized in the statement of income or loss incorporates any interest paid on the financial liability. Fair value is determined in the manner described in Note 24.
Effective interest method	Effective interest method The effective interest method is a method of calculating the amortized cost of a financial asset and a financial liability. It allocates interest income and interest expense over the relevant period. The effective interest rate is the rate that discounts estimated future cash flows (including all fees or points paid or received that form an integral part of the effective interest rate, transaction costs and other premiums or discounts) over the expected life of the financial asset and financial liability, or, where appropriate, a shorter period.
Convertible debt instruments	Convertible debt instruments In June 2014, we completed an offering for $360.0 million in aggregate principal amount of convertible senior notes due 2019, or the Convertible Notes due 2019, in a private offering to qualified institutional buyers pursuant to Rule 144A under the Securities Act of 1933 (as further described in Note 13). In May 2018 and July 2018, we exchanged $188.5 million and $15.0 million (out of $348.5 million outstanding), respectively, in aggregate principal amount of our Convertible Notes due 2019 for $188.5 million and $15.0 million , respectively, in aggregate principal amount of the Company's new 3.0% Convertible Senior Notes due 2022 (the “Convertible Notes due 2022”), the terms of which are in Note 13. These exchanges were executed with certain holders of the Convertible Notes due 2019 via separate, privately negotiated agreements. Under International Accounting Standard 32, or IAS 32, we must separately account for the liability and equity components of convertible debt instruments (such as the Convertible Notes) in a manner that reflects the issuer’s economic interest cost. Under this methodology, the instrument is split between its liability and equity components upon initial recognition. The fair value of the liability is measured first, by estimating the fair value of a similar liability that does not have any associated equity conversion option. This becomes the liability’s carrying amount at initial recognition, which is recorded as part of Debt on the consolidated balance sheet. The equity component (the conversion feature) is assigned the residual amount after deducting the amount separately determined for the liability component from the fair value of the instrument as a whole and is recorded as part of Additional paid-in capital within stockholders’ equity on the consolidated balance sheet. Issuance costs are allocated proportionately between the liability and equity components. The value of the equity component is treated as an original issue discount for purposes of accounting for the liability component of the Convertible Notes due 2019 and Convertible Notes due 2022. Accordingly, we are required to record non-cash interest expense as a result of the amortization of the discounted carrying value of the Convertible Notes to their face amount over the term of the Convertible Notes due 2019 and Convertible Notes due 2022. IAS 32 therefore requires interest to include both the current period’s amortization of the debt discount and the instrument’s coupon interest.
Derivative financial instruments	Derivative financial instruments Derivatives are initially recognized at fair value at the date a derivative contract is entered into and are subsequently remeasured to their fair value at each balance sheet date. A derivative with a positive fair value is recognized as a financial asset whereas a derivative with a negative fair value is recognized as a financial liability. The resulting gain or loss is recognized in income or loss immediately unless the derivative is designated and effective as a hedging instrument, in which event the timing of the recognition in income or loss depends on the nature of the hedging relationship. A derivative is presented as a non-current asset or a non-current liability if the remaining maturity of the instrument is more than 12 months, and it is not expected to be realized or settled within 12 months. There were no derivative instruments or transactions during the year ended December 31, 2018 . Our derivative financial instruments for the years ended December 31, 2017 and 2016 consisted of a profit or loss sharing arrangement with a third party on a time chartered-in vessel.
Equity instruments	Equity instruments An equity instrument is any contract that evidences a residual interest in our assets after deducting all of its liabilities. Equity instruments issued by us are recorded at the proceeds received, net of direct issue costs. We had 51,397,562 and 32,650,755 registered shares authorized, issued and outstanding with a par value of $0.01 per share at December 31, 2018 and December 31, 2017 , respectively. These shares provide the holders with the same rights to dividends and voting rights.
Provisions	Provisions Provisions are recognized when we have a present obligation as a result of a past event, and it is probable that we will be required to settle that obligation. Provisions are measured at our best estimate of the expenditure required to settle the obligation at the balance sheet date and are discounted to present value where the effect is material.
Dividends	Dividends A provision for dividends payable is recognized when the dividend has been declared in accordance with the terms of the shareholder agreement. Dividends per share presented in these consolidated financial statements are calculated by dividing the aggregate dividends declared by the number of our shares at the record date of such dividend.
Restricted stock	Restricted stock The restricted stock awards granted under our equity incentive plans as described in Note 16 contain only service conditions and are classified as equity settled. Accordingly, the fair value of our restricted stock awards was calculated by multiplying the average of the high and low share price on the grant date and the number of restricted stock shares granted that are expected to vest. In accordance with IFRS 2 “Share Based Payment,” the share price at the grant date serves as a proxy for the fair value of services to be provided by the individual under the plan. Compensation expense related to the awards is recognized ratably over the vesting period, based on our estimate of the number of awards that will eventually vest. The vesting period is the period during which an individual is required to provide service in exchange for an award and is updated at each balance sheet date to reflect any revisions in estimates of the number of awards expected to vest as a result of the effect of service vesting conditions. The impact of the revision of the original estimate, if any, is recognized in the consolidated statement of income or loss such that the cumulative expense reflects the revised estimate, with a corresponding adjustment to equity reserves.
Critical accounting judgments and key sources of estimation uncertainty	Critical accounting judgments and key sources of estimation uncertainty In the application of the accounting policies, we are required to make judgments, estimates and assumptions about the carrying amounts of assets and liabilities that are not readily apparent from other sources. The estimates and associated assumptions are based on historical experience and other factors that are considered to be relevant. Actual results may differ from these estimates. The estimates and underlying assumptions are reviewed on an on-going basis. Revisions to accounting estimates are recognized in the period in which the estimate is revised if the revision affects only that period, or in the period of the revision and future periods if the revision affects both current and future periods. The significant judgments and estimates are as follows: Revenue recognition Our revenue is primarily generated from time charters, spot voyages, or pools (see Note 18 for the components of our revenue generated during the years ended December 31, 2018 , 2017 and 2016 ). Revenue recognition for time charters and pools is generally not as complex or as subjective as voyage charters (spot voyages). Time charters are for a specific period of time at a specific rate per day. For long-term time charters, revenue is recognized on a straight-line basis over the term of the charter. Pool revenues are determined by the pool managers from the total revenues and expenses of the pool and allocated to pool participants using a mechanism set out in the pool agreement. We generated revenue from spot voyages during the years ended December 31, 2018 and December 31, 2017 . Within the shipping industry, prior to January 1, 2018 (as discussed below under Standards and Interpretations issued and adopted in 2018 ), there were two methods used to account for spot voyage revenue: (1) ratably over the estimated length of each voyage or (2) completed voyage. The recognition of voyage revenues ratably over the estimated length of each voyage was the most prevalent method of accounting for voyage revenues and the method used by us. Under each method, voyages were calculated on either a load-to-load or discharge-to-discharge basis. In applying our revenue recognition method, we believed that the discharge-to-discharge basis of calculating voyages more accurately estimated voyage results than the load-to-load basis. In the application of this policy, we did not begin recognizing revenue until (i) the amount of revenue could be measured reliably, (ii) it was probable that the economic benefits associated with the transaction would flow to the entity, (iii) the transactions stage of completion at the balance sheet date could be measured reliably and (iv) the costs incurred and the costs to complete the transaction could be measured reliably. Subsequent to January 1, 2018, we recognize spot market revenue ‘over time’ as the customer (i.e. the charterer) is simultaneously receiving and consuming the benefits of the vessel. Under IFRS 15, the performance obligation has been identified as the transportation of cargo from one point to another. Therefore, in a spot market voyage under IFRS 15, revenue is now recognized on a pro-rata basis commencing on the date that the cargo is loaded and concluding on the date of discharge. Moreover, we changed the methodology for recognizing voyage expenses to comply with IFRS 15. Under IFRS 15, voyage costs incurred in the fulfillment of a voyage charter are deferred and amortized over the course of the charter commencing on the date that the cargo is loaded and concluding on the date of discharge. Voyage costs are only deferred if they (i) relate directly to such charter, (ii) generate or enhance resources to be used in meeting obligations under the charter and (iii) are expected to be recovered. Vessel impairment We evaluate the carrying amounts of our vessels and vessels under construction to determine whether there is any indication that those vessels have suffered an impairment loss. If any such indication exists, the recoverable amount of vessels is estimated in order to determine the extent of the impairment loss (if any). Recoverable amount is the higher of fair value less costs to sell (determined by taking into consideration two independent broker valuations) and value in use. In assessing value in use, the estimated future cash flows are discounted to their present value using a pre-tax discount rate that reflects current market assessments of the time value of money and the risks specific to the asset for which the estimates of future cash flows have not been adjusted. The projection of cash flows related to vessels is complex and requires us to make various estimates including future freight rates, earnings from the vessels and discount rates. All of these items have been historically volatile. As part of our process of assessing fair value less costs to sell of the vessel, we obtain vessel valuations for our operating vessels from leading, independent and internationally recognized ship brokers on an annual basis or when there is an indication that an asset or assets may be impaired. We generally do not obtain vessel valuations for vessels under construction. If an indication of impairment is identified, the need for recognizing an impairment loss is assessed by comparing the carrying amount of the vessels to the higher of the fair value less costs to sell and the value in use. Likewise, if there is an indication that an impairment loss recognized in prior periods no longer exists or may have decreased, the need for recognizing an impairment reversal is assessed by comparing the carrying amount of the vessels to the latest estimate of recoverable amount. At December 31, 2018 , we reviewed the carrying amount of our vessels to determine whether there was an indication that these assets had suffered an impairment. First, we compared the carrying amount of our vessels to their fair values less costs to sell (determined by taking into consideration two independent broker valuations). We then compare that estimate of market values (less an estimate of selling costs) to each vessel’s carrying value and, if the carrying value exceeds the vessel’s market value, an indicator of impairment exists. We also consider sustained weakness in the product tanker market as an impairment indicator. If we determined that impairment indicators exist, then we prepared a value in use calculation where we estimated each vessel’s future cash flows. These estimates are primarily based on a combination of the latest, published, forecast time charter rates for the next three years, a growth rate of 2.47% in freight rates in each period thereafter (which is based off of historical and forecast inflation rates) and our best estimates of vessel operating expenses and drydock costs. These cash flows were then discounted to their present value, using a pre-tax discount rate of 8.29% . At December 31, 2018 , we owned or financed leased 109 vessels in our fleet. The results of our impairment test were as follows: • 34 of our owned or financed leased vessels in our fleet had fair values less costs to sell greater than their carrying amount. As such, there were no indicators of impairment for these vessels. • 75 of our owned or finance leased vessels in our fleet had fair values less costs to sell less than their carrying amount. We prepared a value in use calculation for each of these vessels which resulted in no impairment being recognized Vessel lives and residual value The carrying value of each of our vessels represents its original cost at the time it was delivered or purchased less depreciation and impairment. We depreciate our vessels to their residual value on a straight-line basis over their estimated useful lives of 25 years. The estimated useful life of 25 years is management’s best estimate and is also consistent with industry practice for similar vessels. The residual value is estimated as the lightweight tonnage of each vessel multiplied by a forecast scrap value per ton. The scrap value per ton is estimated by taking into consideration the historical four -year scrap market rate average at the balance sheet date, which we update annually. An increase in the estimated useful life of a vessel or in its scrap value would have the effect of decreasing the annual depreciation charge and extending it into later periods. A decrease in the useful life of a vessel or scrap value would have the effect of increasing the annual depreciation charge. When regulations place significant limitations over the ability of a vessel to trade on a worldwide basis, the vessel’s useful life is adjusted to end at the date such regulations become effective. No such regulations have been identified that would have impacted the estimated useful life of our vessels. The estimated salvage value of the vessels may not represent the fair market value at any one time since market prices of scrap values tend to fluctuate. Deferred drydock cost We recognize drydock costs as a separate component of each vessel’s carrying amount and amortize the drydock cost on a straight-line basis over the estimated period until the next drydock. We use judgment when estimating the period between when drydocks are performed, which can result in adjustments to the estimated amortization of the drydock expense. If the vessel is disposed of before the next drydock, the remaining balance of the deferred drydock is written-off and forms part of the gain or loss recognized upon disposal of vessels in the period when contracted. We expect that our vessels will be required to be drydocked approximately every 30 to 60 months for major repairs and maintenance that cannot be performed while the vessels are operating. Costs capitalized as part of the drydock include actual costs incurred at the drydock yard and parts and supplies used in making such repairs.

General information and signi_3

General information and significant accounting policies (Tables)	12 Months Ended
	Dec. 31, 2018
Corporate Information And Statement Of IFRS Compliance [Abstract]
Adoption of new and amended IFRS and IFRIC interpretations from January 1, 2018	The following table summarizes the impact of adopting IFRS 15 on the Company's statement of income or loss and statement of comprehensive income or loss for the year ended December 31, 2018 for each of the line items affected. There was no impact on the Company's balance sheet at December 31, 2018 as the Company did not have any vessels operating in the spot market on that date. Additionally, there was no material impact on the statement of cash flows for the year ended December 31, 2018. In thousands of U.S. dollars Amounts after adoption of IFRS 15 Adjustments Amounts without adoption of IFRS 15 Revenue Vessel revenue $ 585,047 $ (173 ) $ 584,874 Operating expenses Voyage expenses (5,146 ) 177 (4,969 ) Total operating expenses (574,505 ) 177 (574,328 ) Net loss $ (190,071 ) $ 4 $ (190,067 ) Total comprehensive loss $ (190,071 ) $ 4 $ (190,067 )

Merger with Navig8 Product Ta_2

Merger with Navig8 Product Tankers Inc (Tables)	12 Months Ended
	Dec. 31, 2018
Business Combinations1 [Abstract]
Purchase price allocation	The following represents the purchase price allocation for both the NPTI Vessel Acquisition and the September Closing. The consideration transferred for the September Closing has been measured at fair value, with the fair value of the common shares issued in September 2017 based on the average of the high and low price of such shares on the date of acquisition. In thousands of U.S. Dollars NPTI Vessel Acquisition September Closing - Preliminary Purchase Price Allocation - December 31, 2017 Measurement Period Adjustments September Closing - Final Purchase Price Allocation - December 31, 2018 Cash and cash equivalents $ 6,180 $ 15,149 $ — $ 15,149 Restricted cash — 13,641 — 13,641 Accounts receivables 3,330 16,323 132 16,455 (1) Prepaid expenses and other assets 2,932 19,940 — 19,940 Inventories 299 1,415 — 1,415 Restricted cash - non-current 4,000 6,380 — 6,380 Vessels, net 158,500 972,750 — 972,750 Accounts payable and accrued expenses (13,720 ) (2,966 ) (189 ) (3,155 ) (2) Debt (current and non-current) (113,856 ) (793,519 ) — (793,519 ) Redeemable Preferred Shares — (39,495 ) — (39,495 ) Net assets acquired and liabilities assumed 47,665 209,618 (57 ) 209,561 Total purchase price consideration 42,248 221,100 — 221,100 Provisional (bargain purchase) / goodwill $ (5,417 ) $ 11,482 $ 57 $ 11,539

Cash and Cash Equivalents (Tabl

Cash and Cash Equivalents (Tables)	12 Months Ended
	Dec. 31, 2018
Subclassifications of assets, liabilities and equities [abstract]
Disclosure of components of cash	The following table depicts the components of our cash as of December 31, 2018 and 2017 : At December 31, In thousands of U.S. dollars 2018 2017 Cash at banks $ 592,498 $ 185,377 Cash on vessels 1,154 1,085 $ 593,652 $ 186,462

Prepaid expenses and other as_2

Prepaid expenses and other assets (Tables)	12 Months Ended
	Dec. 31, 2018
Subclassifications of assets, liabilities and equities [abstract]
Summary of prepaid expenses and other assets	The following is a table summarizing our prepaid expenses and other current assets as of December 31, 2018 and 2017 : At December 31, In thousands of U.S. dollars 2018 2017 SSM - prepaid vessel operating expenses 2,461 6,391 Prepaid insurance - related party — 2,428 Prepaid expenses from related parties 2,461 8,819 Prepaid interest 6,870 1,153 Prepaid insurance 4,449 1,001 Third party - prepaid vessel operating expenses 712 1,255 Other prepaid expenses 1,179 5,492 $ 15,671 $ 17,720

Accounts receivable (Tables)

Accounts receivable (Tables)	12 Months Ended
	Dec. 31, 2018
Subclassifications of assets, liabilities and equities [abstract]
Summary of the components of accounts receivable	The following is a table summarizing our accounts receivable as of December 31, 2018 and 2017 : At December 31, In thousands of U.S. dollars 2018 2017 Scorpio MR Pool Limited $ 33,288 $ 27,720 Scorpio LR2 Pool Limited 24,563 7,026 Scorpio Handymax Tanker Pool Limited 4,559 6,037 Scorpio LR1 Pool Limited 3,705 3,002 Scorpio Aframax Pool Limited 63 1,095 Scorpio Commercial Management S.A.M. 2,511 — Receivables from the related parties 68,689 44,880 Insurance receivables 204 870 Freight and time charter receivables 22 2,399 Receivables from Navig8 Group Pools 17 14,625 Other receivables 786 2,684 $ 69,718 $ 65,458

Vessels (Tables)

Vessels (Tables)	12 Months Ended
	Dec. 31, 2018
Property, plant and equipment [abstract]
Operating vessels and drydock rollforward	Operating vessels and drydock In thousands of U.S. dollars Vessels Drydock Total Cost As of January 1, 2018 4,389,648 82,888 4,472,536 Additions (1) 79,454 4,964 84,418 Write-offs (2) — (1,500 ) (1,500 ) As of December 31, 2018 4,469,102 86,352 4,555,454 Accumulated depreciation and impairment As of January 1, 2018 (347,703 ) (34,739 ) (382,442 ) Charge for the period (158,740 ) (17,983 ) (176,723 ) Write-offs (2) — 1,500 1,500 As of December 31, 2018 (506,443 ) (51,222 ) (557,665 ) Net book value As of December 31, 2018 $ 3,962,659 $ 35,130 $ 3,997,789 Cost As of January 1, 2017 $ 3,126,790 $ 60,089 $ 3,186,879 Additions (3) 333,338 12,667 346,005 Vessels acquired in merger with NPTI (4) 1,113,618 17,632 1,131,250 Disposal of vessels (5) (184,098 ) (3,750 ) (187,848 ) Write-offs (6) — (3,750 ) (3,750 ) As of December 31, 2017 4,389,648 82,888 4,472,536 Accumulated depreciation and impairment As of January 1, 2017 (246,210 ) (27,415 ) (273,625 ) Charge for the period (127,369 ) (14,049 ) (141,418 ) Disposal of vessels (5) 25,876 2,975 28,851 Write-offs (6) — 3,750 3,750 As of December 31, 2017 (347,703 ) (34,739 ) (382,442 ) Net book value As of December 31, 2017 $ 4,041,945 $ 48,149 $ 4,090,094 (1) Additions in 2018 primarily relate to (i) the deliveries of STI Esles II and STI Jardins and corresponding calculations of notional drydock on these vessels and (ii) drydock costs incurred on certain of our vessels. (2) Represents the write-off of the notional drydock costs of STI Fontvieille and STI Ville which were drydocked in 2018. (3) Additions in 2017 primarily relate to (i) the deliveries of eight newbuilding vessels and corresponding calculations of notional drydock on these vessels and (ii) drydock costs incurred on certain of our vessels. (4) Represents the fair value of the vessels acquired in the Merger with NPTI as described in Note 2. (5) Represents the net book value of (i) STI Sapphire and STI Emerald, which were sold during the year ended December 31, 2017 and (ii) STI Beryl , STI Le Rocher and STI Larvotto, which were sold and leased back during the year ended December 31, 2017 . These transactions are further described below. (6) Represents the write-off of the notional drydock costs of STI Amber, STI Topaz, STI Ruby, STI Garnet and STI Onyx which were drydocked in 2017. A rollforward of activity within vessels under construction is as follows: In thousands of U.S. dollars Balance as of January 1, 2017 $ 137,917 Installment payments and other capitalized expenses 252,977 Capitalized interest 4,194 Transferred to operating vessels and drydock (339,712 ) Balance as of December 31, 2017 $ 55,376 Installment payments and other capitalized expenses 25,452 Capitalized interest 157 Transferred to operating vessels and drydock (80,985 ) Balance as of December 31, 2018 $ —
Schedule of vessel deliveries	We took delivery of the following newbuilding vessels during the year ended December 31, 2018 resulting in an increase of $81.0 million in Vessels from December 31, 2017 : Month Vessel Name Delivered Type 1 STI Esles II January 2018 MR 2 STI Jardins January 2018 MR We took delivery of the following newbuilding vessels during the year ended December 31, 2017 resulting in an increase of $346.0 million in Vessels from December 31, 2016 : Month Vessel Name Delivered Type 1 STI Selatar February 2017 LR2 2 STI Rambla March 2017 LR2 3 STI Galata March 2017 MR 4 STI Bosphorus April 2017 MR 5 STI Leblon July 2017 MR 6 STI La Boca July 2017 MR 7 STI San Telmo September 2017 MR 8 STI Donald C Trauscht October 2017 MR
Schedule of future expected payments for purchase commitments	The following table is a timeline of future expected payments and dates for our commitments to purchase scrubbers and ballast water treatment systems as of December 31, 2018 (1) : As of December 31, Amounts in thousands of US dollars 2018 Less than 1 month $ 926 1-3 months 19,481 3 months to 1 year 93,188 1-5 years 18,279 5+ years — Total $ 131,874 (1) These amounts are subject to change as installation times are finalized. The amounts presented exclude installation costs.
Schedule of collateral agreements	The below table is a summary of these vessels, along with the respective borrowing or lease financing facility (which are described in Note 13) as of December 31, 2018 : Credit Facility Vessel Name $116.0 Million Lease Financing STI Oxford $116.0 Million Lease Financing STI Selatar $116.0 Million Lease Financing STI Gramercy $116.0 Million Lease Financing STI Queens $157.5 Million Lease Financing STI Alexis $157.5 Million Lease Financing STI Benicia $157.5 Million Lease Financing STI Duchessa $157.5 Million Lease Financing STI Mayfair $157.5 Million Lease Financing STI San Antonio $157.5 Million Lease Financing STI St. Charles $157.5 Million Lease Financing STI Yorkville 2017 Credit Facility STI Galata 2017 Credit Facility STI Bosphorus 2017 Credit Facility STI Leblon 2017 Credit Facility STI La Boca 2017 Credit Facility STI San Telmo 2017 Credit Facility STI Donald C Trauscht 2017 Credit Facility STI Esles II 2017 Credit Facility STI Jardins 2018 CMB Lease Financing STI Milwaukee 2018 CMB Lease Financing STI Battery 2018 CMB Lease Financing STI Tribeca 2018 CMB Lease Financing STI Bronx 2018 CMB Lease Financing STI Manhattan 2018 CMB Lease Financing STI Seneca 2018 NIBC Credit Facility STI Memphis 2018 NIBC Credit Facility STI Soho ABN AMRO / K-Sure Credit Facility STI Precision ABN AMRO / K-Sure Credit Facility STI Prestige ABN AMRO / SEB Credit Facility STI Hammersmith ABN AMRO / SEB Credit Facility STI Westminster ABN AMRO / SEB Credit Facility STI Winnie ABN AMRO / SEB Credit Facility STI Lauren ABN AMRO / SEB Credit Facility STI Connaught ABN AMRO Credit Facility STI Spiga ABN AMRO Credit Facility STI Savile Row ABN AMRO Credit Facility STI Kingsway ABN AMRO Credit Facility STI Carnaby AVIC Lease Financing STI Fontvieille AVIC Lease Financing STI Ville AVIC Lease Financing STI Brooklyn AVIC Lease Financing STI Rose AVIC Lease Financing STI Rambla BCFL Lease Financing (LR2s) STI Solace BCFL Lease Financing (LR2s) STI Solidarity BCFL Lease Financing (LR2s) STI Stability BCFL Lease Financing (MRs) STI Amber BCFL Lease Financing (MRs) STI Topaz BCFL Lease Financing (MRs) STI Ruby BCFL Lease Financing (MRs) STI Garnet BCFL Lease Financing (MRs) STI Onyx China Huarong Lease Financing STI Opera China Huarong Lease Financing STI Venere China Huarong Lease Financing STI Virtus China Huarong Lease Financing STI Aqua China Huarong Lease Financing STI Dama China Huarong Lease Financing STI Regina Citibank / K-Sure Credit Facility STI Excellence Citibank / K-Sure Credit Facility STI Executive Citibank / K-Sure Credit Facility STI Experience Citibank / K-Sure Credit Facility STI Express CMB Lease Financing STI Pride CMB Lease Financing STI Providence COSCO Shipping Lease Financing STI Battersea COSCO Shipping Lease Financing STI Wembley COSCO Shipping Lease Financing STI Texas City COSCO Shipping Lease Financing STI Meraux Credit Agricole Credit Facility STI Exceed Credit Agricole Credit Facility STI Excel Credit Agricole Credit Facility STI Excelsior Credit Agricole Credit Facility STI Expedite CSSC Lease Financing STI Nautilus CSSC Lease Financing STI Gallantry CSSC Lease Financing STI Goal CSSC Lease Financing STI Guard CSSC Lease Financing STI Guide CSSC Lease Financing STI Gauntlet CSSC Lease Financing STI Gladiator CSSC Lease Financing STI Gratitude ING Credit Facility STI Black Hawk ING Credit Facility STI Rotherhithe ING Credit Facility STI Pontiac ING Credit Facility STI Osceola ING Credit Facility STI Notting Hill ING Credit Facility STI Jermyn ING Credit Facility STI Lombard ING Credit Facility STI Grace KEXIM Credit Facility STI Acton KEXIM Credit Facility STI Brixton KEXIM Credit Facility STI Broadway KEXIM Credit Facility STI Camden KEXIM Credit Facility STI Clapham KEXIM Credit Facility STI Comandante KEXIM Credit Facility STI Condotti KEXIM Credit Facility STI Elysees KEXIM Credit Facility STI Finchley KEXIM Credit Facility STI Fulham KEXIM Credit Facility STI Hackney KEXIM Credit Facility STI Madison KEXIM Credit Facility STI Orchard KEXIM Credit Facility STI Park KEXIM Credit Facility STI Pimlico KEXIM Credit Facility STI Poplar KEXIM Credit Facility STI Sloane KEXIM Credit Facility STI Veneto Ocean Yield Lease Financing STI Sanctity Ocean Yield Lease Financing STI Steadfast Ocean Yield Lease Financing STI Supreme Ocean Yield Lease Financing STI Symphony

Vessels under construction (Tab

Vessels under construction (Tables)	12 Months Ended
	Dec. 31, 2018
Property, plant and equipment [abstract]
Rollforward of activity within vessels under construction	Operating vessels and drydock In thousands of U.S. dollars Vessels Drydock Total Cost As of January 1, 2018 4,389,648 82,888 4,472,536 Additions (1) 79,454 4,964 84,418 Write-offs (2) — (1,500 ) (1,500 ) As of December 31, 2018 4,469,102 86,352 4,555,454 Accumulated depreciation and impairment As of January 1, 2018 (347,703 ) (34,739 ) (382,442 ) Charge for the period (158,740 ) (17,983 ) (176,723 ) Write-offs (2) — 1,500 1,500 As of December 31, 2018 (506,443 ) (51,222 ) (557,665 ) Net book value As of December 31, 2018 $ 3,962,659 $ 35,130 $ 3,997,789 Cost As of January 1, 2017 $ 3,126,790 $ 60,089 $ 3,186,879 Additions (3) 333,338 12,667 346,005 Vessels acquired in merger with NPTI (4) 1,113,618 17,632 1,131,250 Disposal of vessels (5) (184,098 ) (3,750 ) (187,848 ) Write-offs (6) — (3,750 ) (3,750 ) As of December 31, 2017 4,389,648 82,888 4,472,536 Accumulated depreciation and impairment As of January 1, 2017 (246,210 ) (27,415 ) (273,625 ) Charge for the period (127,369 ) (14,049 ) (141,418 ) Disposal of vessels (5) 25,876 2,975 28,851 Write-offs (6) — 3,750 3,750 As of December 31, 2017 (347,703 ) (34,739 ) (382,442 ) Net book value As of December 31, 2017 $ 4,041,945 $ 48,149 $ 4,090,094 (1) Additions in 2018 primarily relate to (i) the deliveries of STI Esles II and STI Jardins and corresponding calculations of notional drydock on these vessels and (ii) drydock costs incurred on certain of our vessels. (2) Represents the write-off of the notional drydock costs of STI Fontvieille and STI Ville which were drydocked in 2018. (3) Additions in 2017 primarily relate to (i) the deliveries of eight newbuilding vessels and corresponding calculations of notional drydock on these vessels and (ii) drydock costs incurred on certain of our vessels. (4) Represents the fair value of the vessels acquired in the Merger with NPTI as described in Note 2. (5) Represents the net book value of (i) STI Sapphire and STI Emerald, which were sold during the year ended December 31, 2017 and (ii) STI Beryl , STI Le Rocher and STI Larvotto, which were sold and leased back during the year ended December 31, 2017 . These transactions are further described below. (6) Represents the write-off of the notional drydock costs of STI Amber, STI Topaz, STI Ruby, STI Garnet and STI Onyx which were drydocked in 2017. A rollforward of activity within vessels under construction is as follows: In thousands of U.S. dollars Balance as of January 1, 2017 $ 137,917 Installment payments and other capitalized expenses 252,977 Capitalized interest 4,194 Transferred to operating vessels and drydock (339,712 ) Balance as of December 31, 2017 $ 55,376 Installment payments and other capitalized expenses 25,452 Capitalized interest 157 Transferred to operating vessels and drydock (80,985 ) Balance as of December 31, 2018 $ —

Other non-current assets (Table

Other non-current assets (Tables)	12 Months Ended
	Dec. 31, 2018
Subclassifications of assets, liabilities and equities [abstract]
Schedule of other non-current assets	At December 31, In thousands of U.S. dollars 2018 2017 Scorpio LR2 Pool Ltd. pool working capital contributions (1) $ 31,450 $ 28,050 Scorpio Handymax Tanker Pool Ltd. pool working capital contributions (2) 4,923 6,751 Scorpio LR1 Pool Ltd. pool working capital contributions (1) 6,600 6,600 Working capital contributions to Scorpio Pools 42,973 41,401 Deposits for exhaust gas cleaning system ('scrubbers') (3) 12,221 — Seller's credit on lease financed vessels (4) 9,087 8,581 Deposits for ballast water treatment systems (5) 6,365 — Investment in ballast water treatment system supplier (5) 1,751 — Capitalized loan fees — 582 Deferred drydock costs on bareboat chartered-in vessels (6) 2,813 120 $ 75,210 $ 50,684 (1) Upon entrance into the Scorpio LR2 and LR1 Pools, all vessels are required to make initial working capital contributions of both cash and bunkers. Initial working capital contributions are repaid, without interest, upon a vessel’s exit from the pool. Bunkers on board a vessel exiting the pool are credited against such repayment at the actual invoice price of the bunkers. For all owned vessels, we assume that these contributions will not be repaid within 12 months and are thus classified as non-current within Other Assets on the consolidated balance sheets. For time chartered-in vessels we classify the amounts as current (within accounts receivable) or non-current (within Other Assets) according to the expiration of the contract. (2) Upon entrance into the Scorpio Handymax Tanker Pool, all vessels are required to make initial working capital contributions of both cash and bunkers. Initial working capital contributions are repaid, without interest, upon a vessel's exit from each pool no later than six months after the exit date. Bunkers on board a vessel exiting the pool are credited against such repayment at the actual invoice price of the bunkers. For all owned vessels, we assume that these contributions will not be repaid within 12 months and are thus classified as non-current within other assets on the consolidated balance sheets. For time chartered-in vessels we classify the amounts as current (within Accounts Receivable) or non-current (within Other Assets) according to the expiration of the contract. (3) From August 2018 through November 2018, we entered into agreements with two separate suppliers to retrofit a total of 77 of our tankers with scrubbers for total consideration of $116.1 million (which excludes installation costs). These scrubbers are expected to be installed throughout 2019 and 2020. Deposits of $12.2 million were made as part of these agreements during the year ended December 31, 2018 . (4) The seller's credit on lease financed vessels represents the present value of the deposits of $4.35 million per vessel ( $13.1 million in aggregate) that was retained by the buyer as part of the sale and operating leasebacks of STI Beryl , STI Le Rocher and STI Larvotto , which is described in Note 13. This deposit will either be applied to the purchase price of the vessel if a purchase option is exercised, or refunded to us at the expiration of the agreement. The present value of this deposit has been calculated based on the interest rate that is implied in the lease, and the carrying value will accrete over the life of the lease, through interest income, until expiration. $0.5 million and $0.3 million was recorded as interest income as part of these agreements during years ended December 31, 2018 and 2017, respectively. (5) In July 2018, we executed an agreement to purchase 55 ballast water treatment systems from an unaffiliated third party supplier for total consideration of $36.2 million . These systems are expected to be installed over the next five years , as each respective vessel under the agreement is due for its International Oil Pollution Prevention, or IOPP, renewal survey. Upon entry into this agreement, we also obtained a minority equity interest in this supplier for no additional consideration. We have determined that of the total consideration of $36.2 million , $1.8 million is attributable to the minority equity interest. During the year ended December 31, 2018 , an aggregate deposit of $8.1 million was made as part of the entry into this agreement, and we have recorded $1.8 million of this amount as the aforementioned minority equity interest, which is being accounted for as a financial asset under IFRS 9. Under the terms of the agreement, we were granted a put option, exercisable after one year following the date of the agreement, whereby we can put the shares back to the supplier at a predetermined price. The supplier was also granted a call option, exercisable two years following the date of the agreement, whereby it can buy the shares back from us at a predetermined price, which is greater than the strike price of the put option. Given that the value of this investment is contractually limited to the strike prices set forth in these options, we have recorded the value of the investment at the put option strike price, or $1.8 million in aggregate. The difference in the aggregate value of the investment, based on the spread between the exercise prices of the put and call options, is $0.6 million . We consider this value to be a Level 3 fair value measurement, as this supplier is a private company, and the value has been determined based on unobservable market data (i.e. the proceeds that we would receive if we exercised our put option in full). (6) Represents deferred drydock costs that have been incurred on certain of our bareboat chartered-in vessels that are being accounted for as operating leases. These costs are being amortized over the shorter of the lease term, or the time period until the next scheduled drydock.

Accounts payable (Tables)

Accounts payable (Tables)	12 Months Ended
	Dec. 31, 2018
Subclassifications of assets, liabilities and equities [abstract]
Summary of the components of accounts payable	The following table depicts the components of our accounts payable as of December 31, 2018 and 2017 : At December 31, In thousands of U.S. dollars 2018 2017 Scorpio Ship Management S.A.M. (SSM) $ 545 $ 766 Scorpio Services Holding Limited (SSH) 409 190 Scorpio Commercial Management S.A.M. (SCM) 389 186 Amounts due to a port agent - related party 62 60 Scorpio LR1 Pool Limited 51 22 Scorpio Handymax Tanker Pool Limited 12 — Scorpio LR2 Pool Limited 2 365 Insurance liabilities - related party — 2,163 Scorpio Aframax Pool Limited — 74 Accounts payable to related parties 1,470 3,826 Suppliers 10,395 9,218 $ 11,865 $ 13,044

Accrued expenses (Tables)

Accrued expenses (Tables)	12 Months Ended
	Dec. 31, 2018
Subclassifications of assets, liabilities and equities [abstract]
Summary of the components of accrued expenses	The following table depicts the components of our accrued expenses as of December 31, 2018 and 2017 : At December 31, In thousands of U.S. dollars 2018 2017 Accrued expenses to a related party port agent $ 398 $ 35 Accrued expenses to SSM 287 — Accrued expenses to a related party insurance broker — 26 Accrued expenses to SCM — 5 Accrued expenses to related parties 685 66 Suppliers 9,147 16,533 Accrued interest 9,202 13,078 Accrued short-term employee benefits 2,430 2,325 Accrued transaction costs relating to the Merger — 34 Other accrued expenses 1,508 802 $ 22,972 $ 32,838

Current and long-term debt (Tab

Current and long-term debt (Tables)	12 Months Ended
	Dec. 31, 2018
Financial Instruments [Abstract]
Schedule of Detailed Information about Current and Long-term Debt	The following is a breakdown of the current and non-current portion of our debt outstanding as of December 31, 2018 and December 31, 2017 : At December 31, In thousands of U.S. dollars 2018 2017 Current portion (1) $ 297,934 $ 113,036 Finance lease (2) 114,429 50,146 Current portion of long-term debt 412,363 163,182 Non-current portion (3) 1,192,000 1,937,018 Finance lease (4) 1,305,952 666,993 $ 2,910,315 $ 2,767,193 (1) The current portion at December 31, 2018 was net of unamortized deferred financing fees of $2.1 million . The current portion at December 31, 2017 was net of unamortized deferred financing fees of $1.7 million . (2) The current portion at December 31, 2018 was net of unamortized deferred financing fees of $0.8 million . The current portion at December 31, 2017 was net of unamortized deferred financing fees of $0.1 million . (3) The non-current portion at December 31, 2018 was net of unamortized deferred financing fees of $12.0 million . The non-current portion at December 31, 2017 was net of unamortized deferred financing fees of $33.4 million . (4) The non-current portion at December 31, 2018 was net of unamortized deferred financing fees of $8.7 million . The non-current portion at December 31, 2017 was net of unamortized deferred financing fees of $1.1 million . The table below details the dividends issued during the year ended December 31, 2018 and the corresponding effect on the conversion rate of the Convertible Notes due 2022: Record Date Dividends per share Share Adjusted Conversion Rate (1) June 6, 2018 $ 0.10 25.08 September 20, 2018 $ 0.10 25.21 December 5, 2018 $ 0.10 25.34 (1) Per $1,000 principal amount of the Convertible Notes. we made the following drawdown to partially finance the purchase of one newbuilding MR during the year ended December 31, 2018 : Drawdown amount (in millions of U.S. dollars) Drawdown date Collateral $ 21.5 January 2018 STI Jardins The table below details the dividends declared from the issuance of the Convertible Notes due 2019 through December 31, 2018 and their corresponding effect to the conversion rate of the Convertible Notes due 2019 (as adjusted for the reverse stock split that was effective in January 2019). The conversion rate as of December 31, 2018 was 10.05396 . Record Date Dividends per share Share Adjusted Conversion Rate (1) August 22, 2014 $ 1.000 8.28556 November 25, 2014 $ 1.200 8.40184 March 13, 2015 $ 1.200 8.52216 May 21, 2015 $ 1.250 8.63738 August 14, 2015 $ 1.250 8.74349 November 24, 2015 $ 1.250 8.86790 March 10, 2016 $ 1.250 9.05311 May 11, 2016 $ 1.250 9.25323 September 15, 2016 $ 1.250 9.49345 November 25, 2016 $ 1.250 9.77039 February 23, 2017 $ 0.100 9.79316 May 11, 2017 $ 0.100 9.81588 September 25, 2017 $ 0.100 9.84450 December 13, 2017 $ 0.100 9.87742 March 12, 2018 $ 0.100 9.92056 June 6, 2018 $ 0.100 9.95277 September 20, 2018 $ 0.100 10.00515 December 5, 2018 $ 0.100 10.05396 (1) Per $1,000 principal amount. December 31, 2018 : Activity Balance as of December 31, 2018 consists of: In thousands of U.S. dollars Carrying Value as of December 31, 2017 Drawdowns Repayments Other Activity (1) Carrying Value as of December 31, 2018 Current Non-Current K-Sure Credit Facility $ 239,919 $ — $ (239,919 ) $ — $ — $ — $ — KEXIM Credit Facility 332,950 — (33,650 ) — 299,300 33,650 265,650 Credit Suisse Credit Facility 53,488 — (53,488 ) — — — — ABN AMRO Credit Facility 113,312 — (12,804 ) — 100,508 8,554 91,954 ING Credit Facility 109,844 38,675 (4,343 ) — 144,176 12,737 131,439 BNP Paribas Credit Facility 42,550 — (42,550 ) — — — — Scotiabank Credit Facility 28,860 — (28,860 ) — — — — NIBC Credit Facility 34,712 — (34,712 ) — — — — 2018 NIBC Credit Facility — 35,658 (807 ) — 34,851 3,230 31,621 2016 Credit Facility 195,979 — (195,979 ) — — — — 2017 Credit Facility 141,814 21,450 (18,499 ) — 144,765 13,265 131,500 HSH Credit Facility 15,416 — (15,416 ) — — — — DVB 2017 Credit Facility 78,440 — (78,440 ) — — — — Credit Agricole Credit Facility 103,914 — (8,568 ) 865 96,211 7,745 88,466 ABN / K-Sure Credit Facility 49,908 — (3,851 ) 775 46,832 3,106 43,726 Citibank / K-Sure Credit Facility 104,052 — (8,416 ) 1,973 97,609 6,524 91,085 ABN / SEB Credit Facility — 120,575 (5,750 ) — 114,825 11,500 103,325 Ocean Yield Lease Financing 169,016 — (10,458 ) 199 158,757 10,515 148,242 CMBFL Lease Financing 65,915 — (4,908 ) 191 61,198 4,725 56,473 BCFL Lease Financing (LR2s) 104,187 — (7,332 ) 599 97,454 7,005 90,449 CSSC Lease Financing 269,965 — (17,309 ) (824 ) 251,832 18,104 233,728 BCFL Lease Financing (MRs) 109,232 — (10,401 ) — 98,831 11,021 87,810 2018 CMBFL Lease Financing — 141,600 (5,057 ) — 136,543 10,114 126,429 $116.0 Million Lease Financing — 114,840 (2,166 ) — 112,674 6,633 106,041 AVIC Lease Financing — 145,000 (5,897 ) — 139,103 11,794 127,309 China Huarong Lease Financing — 144,000 (6,750 ) — 137,250 13,500 123,750 $157.5 Million Lease Financing — 157,500 (5,414 ) — 152,086 14,143 137,943 COSCO Lease Financing — 88,000 (3,850 ) — 84,150 7,700 76,450 Unsecured Senior Notes Due 2020 53,750 — — — 53,750 — 53,750 Unsecured Senior Notes Due 2019 57,500 — — — 57,500 57,500 — Convertible Notes due 2019 (2) 328,717 — — (186,537 ) 142,180 142,180 — Convertible Notes due 2022 (2) — — — 171,469 171,469 — 171,469 $ 2,803,440 $ 1,007,298 $ (865,594 ) $ (11,290 ) $ 2,933,854 $ 415,245 $ 2,518,609 Less: deferred financing fees (36,247 ) (13,871 ) — 26,579 (23,539 ) (2,882 ) (20,657 ) Total $ 2,767,193 $ 993,427 $ (865,594 ) $ 15,289 $ 2,910,315 $ 412,363 $ 2,497,952 (1) Relates to non-cash accretion or amortization of (i) obligations assumed as part of the Merger with NPTI, which were recorded at fair value on the closing date (described below) and (ii) accretion of our Convertible Notes due 2019 and Convertible Notes due 2022. (2) In May 2018 and July 2018, we exchanged $188.5 million and $15.0 million (out of $348.5 million outstanding), respectively, in aggregate principal amount of our Convertible Notes due 2019 for $188.5 million and $15.0 million , respectively, in aggregate principal amount of the Company's new 3.0% Convertible Senior Notes due 2022. As part of these agreements, and for certain of the facilities, the minimum threshold for the aggregate fair market value of the vessels as a percentage of the then aggregate principal amount of each facility was revised to be no less than the following: Facility Minimum ratio KEXIM Credit Facility 155% 2017 Credit Facility 155% ABN Credit Facility 145% through June 30, 2019, 150% thereafter Financial expenses consist of: For the year ended December 31, In thousands of U.S. dollars 2018 2017 2016 Interest expense on debt (1) $ 145,871 $ 86,703 $ 63,858 Amortization of deferred financing fees 10,541 13,381 14,149 Write-off of deferred financing fees (2) 13,212 2,467 14,479 Accretion of convertible notes (as described in Note 13) 13,225 12,211 11,562 Accretion of premiums and discounts on assumed debt (3) 3,779 1,478 — Total financial expenses $ 186,628 $ 116,240 $ 104,048 (1) The increase in interest expense is primarily attributable to increases in the Company’s average carrying value of debt balance in addition to increases in LIBOR rates throughout 2018. Average carrying value of our debt outstanding during the years ended December 31, 2018 , 2017 and 2016 was $2,806.9 million , $2,265.7 million and $1,986.6 million , respectively. The increase in average carrying value of our debt balance during the year ended December 31, 2018 was primarily the result of the Merger and the assumption of NPTI's indebtedness of $907.4 million in aggregate in addition to a series of initiatives to refinance the existing indebtedness on certain of the vessels in our fleet (as described in Note 13). Interest payable during those periods was offset by interest capitalized from vessels under construction (as described in Note 7) of $0.2 million , $4.2 million and $6.3 million , during the years ended December 31, 2018 , 2017 and 2016 respectively. (2) The write-off of deferred financing fees in the year ended December 31, 2018 include (i) $1.2 million related to the exchange of our Convertible Notes due 2019 in May and July 2018 (as described in Note 11), and (ii) $12.0 million related to the initiatives to refinance the existing indebtedness on certain of the vessels in our fleet (as described in Note 13). The write-off of deferred financing fees in the year ended December 31, 2017 includes (i) $0.5 million related to the repayment of debt as a result of the sales of two vessels (as described in Note 6), (ii) $0.1 million related to the repayment of debt as a result of the sale and operating leasebacks of three vessels (as described in Note 19), (iii) $ 1.1 million related to the repayment of debt as a result of the finance lease arrangements for five vessels (as described in Note 13), and (iv) $0.8 million related to the refinancing and repayment of various secured and unsecured borrowings during the year ended December 31, 2017 . The write-off of deferred financing fees in the year ended December 31, 2016 includes (i) $3.2 million related to the repayment of debt as a result of the sales of five vessels, and (ii) $11.2 million related to the refinancing of outstanding borrowings under various credit facilities and the repurchase of our Convertible Notes due 2019 as described in Note 13. (3) The accretion of premiums and discounts represent the accretion or amortization of the fair value adjustments relating to the indebtedness assumed from NPTI that have been recorded since the closing dates of the NPTI Vessel Acquisition and the September Closing.

Derivative financial instrume_2

Derivative financial instruments (Tables)	12 Months Ended
	Dec. 31, 2018
Financial Instruments [Abstract]
Schedule of Realized and Unrealized Gains or Losses on Financial Instruments	The following has been recorded as realized and unrealized gains or losses on our derivative financial instruments during the years ended December 31, 2017 and 2016 : Fair value adjustments Statement of income Amounts in thousands of U.S. dollars Realized (loss) / gain Unrealized gain / (loss) Recognized in equity Profit and loss agreement $ (116 ) $ — $ — Total year ended December 31, 2017 $ (116 ) $ — $ — Profit and loss agreement $ — $ 1,371 $ — Total year ended December 31, 2016 $ — $ 1,371 $ —

Segment reporting (Tables)

Segment reporting (Tables)	12 Months Ended
	Dec. 31, 2018
Operating Segments [Abstract]
Disclosure of operating segments	Information about our reportable segments for the years ended December 31, 2018 , 2017 and 2016 is as follows: For the year ended December 31, 2018 In thousands of U.S. dollars LR1/Panamax Handymax LR2 MR Reportable segments subtotal Corporate and eliminations Total Vessel revenue $ 47,722 $ 95,188 $ 203,414 $ 238,723 $ 585,047 $ — $ 585,047 Vessel operating costs (28,942 ) (48,249 ) (91,975 ) (111,294 ) (280,460 ) — (280,460 ) Voyage expenses (591 ) (440 ) (3,225 ) (890 ) (5,146 ) — (5,146 ) Charterhire — (19,223 ) (7,883 ) (32,526 ) (59,632 ) — (59,632 ) Depreciation (19,290 ) (18,190 ) (72,610 ) (66,633 ) (176,723 ) — (176,723 ) General and administrative expenses (1,173 ) (2,195 ) (3,790 ) (4,771 ) (11,929 ) (40,343 ) (52,272 ) Merger transaction related costs — — — — — (272 ) (272 ) Financial expenses — — — — — (186,628 ) (186,628 ) Loss on exchange of convertible notes — — — — — (17,838 ) (17,838 ) Financial income 111 16 22 515 664 3,794 4,458 Other expenses, net — — — — — (605 ) (605 ) Segment income or loss $ (2,163 ) $ 6,907 $ 23,953 $ 23,124 $ 51,821 $ (241,892 ) $ (190,071 ) For the year ended December 31, 2017 In thousands of U.S. dollars LR1/Panamax Handymax LR2 MR Reportable segments subtotal Corporate and eliminations Total Vessel revenue $ 22,573 $ 95,098 $ 157,123 $ 237,938 $ 512,732 $ — $ 512,732 Vessel operating costs (12,561 ) (50,145 ) (67,254 ) (101,267 ) (231,227 ) — (231,227 ) Voyage expenses (1,018 ) (3,087 ) (2,642 ) (986 ) (7,733 ) — (7,733 ) Charterhire (2,230 ) (24,560 ) (6,258 ) (42,702 ) (75,750 ) — (75,750 ) Depreciation (7,828 ) (18,159 ) (54,922 ) (60,509 ) (141,418 ) — (141,418 ) General and administrative expenses (479 ) (2,170 ) (2,805 ) (4,569 ) (10,023 ) (37,488 ) (47,511 ) Loss on sales of vessels — — — (23,345 ) (23,345 ) — (23,345 ) Merger transaction related costs — — — — — (36,114 ) (36,114 ) Bargain purchase gain — — — — — 5,417 5,417 Financial expenses — — — — — (116,240 ) (116,240 ) Realized loss on derivative financial instruments — — (116 ) — (116 ) — (116 ) Financial income 26 214 15 338 593 945 1,538 Other expenses, net — 1,876 — — 1,876 (349 ) 1,527 Segment income or loss $ (1,517 ) $ (933 ) $ 23,141 $ 4,898 $ 25,589 $ (183,829 ) $ (158,240 ) For the year ended December 31, 2016 In thousands of U.S. dollars LR1/Panamax Handymax LR2 MR Reportable segments subtotal Corporate and eliminations Total Vessel revenue $ 5,843 $ 85,578 $ 165,256 $ 265,020 $ 521,697 $ 1,050 $ 522,747 Vessel operating costs (33 ) (32,817 ) (50,028 ) (104,242 ) (187,120 ) — (187,120 ) Voyage expenses (19 ) (479 ) (375 ) (705 ) (1,578 ) — (1,578 ) Charterhire (5,657 ) (26,292 ) (16,025 ) (30,888 ) (78,862 ) — (78,862 ) Depreciation — (18,014 ) (41,900 ) (61,547 ) (121,461 ) — (121,461 ) General and administrative expenses (7 ) (1,410 ) (1,983 ) (4,485 ) (7,885 ) (47,014 ) (54,899 ) Loss on sales of vessels — — — (2,078 ) (2,078 ) — (2,078 ) Financial expenses — — — — — (104,048 ) (104,048 ) Unrealized gain on derivative financial instruments — — 1,371 — 1,371 — 1,371 Financial income — 6 37 47 90 1,123 1,213 Other expenses, net — — — (9 ) (9 ) (179 ) (188 ) Segment income or loss $ 127 $ 6,572 $ 56,353 $ 61,113 $ 124,165 $ (149,068 ) $ (24,903 )
Disclosure of revenue from major customers	Revenue from customers representing greater than 10% of total revenue during the years ended December 31, 2018 , 2017 and 2016 , within their respective segments was as follows: In thousands of U.S. dollars For the year ended December 31, Segment Customer 2018 2017 2016 MR Scorpio MR Pool Limited (1) $ 225,181 $ 217,141 $ 248,974 LR2 Scorpio LR2 Pool Limited (1) 188,890 136,514 156,503 Handymax Scorpio Handymax Tanker Pool Limited (1) 82,782 78,510 73,683 Panamax Scorpio Panamax Tanker Pool Limited (1) — 1,515 5,843 $ 496,853 $ 433,680 $ 485,003 (1) These customers are related parties as described in Note 17.

Common shares (Tables)

Common shares (Tables)	12 Months Ended
	Dec. 31, 2018
Share-Based Payment Arrangements [Abstract]
Summary of vesting schedule of restricted stock	The vesting schedule of the restricted stock issued to our employees is as follows: Number of restricted shares Vesting date 36,043 September 5, 2019 67,026 March 2, 2020 125,857 June 1, 2020 139,576 September 4, 2020 67,026 March 1, 2021 125,858 June 1, 2021 139,577 September 3, 2021 67,026 March 1, 2022 125,858 June 1, 2022 103,533 September 2, 2022 997,380 The share price on the issuance date was $22.15 per share. The vesting schedule of the restricted stock issued to our employees is as follows: Number of restricted shares Vesting date 123,518 September 4, 2020 21,750 November 4, 2020 21,479 March 1, 2021 123,518 September 3, 2021 21,750 November 5, 2021 21,480 March 1, 2022 123,519 September 2, 2022 21,751 November 4, 2022 21,480 March 1, 2023 500,245
Summary of activity for awards of restricted stock	The following is a summary of activity for awards of restricted stock during the years ended December 31, 2018 and 2017 : Number of Shares Weighted Average Grant Date Fair Value Outstanding and non-vested, December 31, 2016 1,261,358 $ 85.21 Granted 1,092,280 30.90 Vested (423,697 ) 89.92 Forfeited (4,500 ) 75.87 Outstanding and non-vested, December 31, 2017 1,925,441 53.39 Granted 1,885,633 20.28 Vested (447,380 ) 89.13 Forfeited (3,807 ) 52.59 Outstanding and non-vested, December 31, 2018 3,359,887 $ 30.05
Summary of future stock compensation expense	Assuming that all the restricted stock will vest, the stock compensation expense in future periods, including that related to restricted stock issued in prior periods will be: In thousands of U.S. dollars Employees Directors Total For the year ending December 31, 2019 24,440 1,393 25,833 For the year ending December 31, 2020 18,554 539 19,093 For the year ending December 31, 2021 11,465 119 11,584 For the year ending December 31, 2022 4,858 — 4,858 For the year ending December 31, 2023 1,235 — 1,235 $ 60,552 $ 2,051 $ 62,603
Summary of dividend payments	The following dividends were paid during the years ended December 31, 2018 , 2017 and 2016 . Dividends Date per share Paid $1.250 March 30, 2016 $1.250 June 24, 2016 $1.250 September 29, 2016 $1.250 December 22, 2016 $0.100 March 30, 2017 $0.100 June 14, 2017 $0.100 September 29, 2017 $0.100 December 28, 2017 $0.100 March 27, 2018 $0.100 June 28, 2018 $0.100 September 27, 2018 $0.100 December 13, 2018

Related party transactions (Tab

Related party transactions (Tables)	12 Months Ended
	Dec. 31, 2018
Related Party [Abstract]
Disclosure of transactions between related parties	Transactions with entities controlled by the Lolli-Ghetti family (herein referred to as related party affiliates) in the consolidated statements of income or loss and balance sheets are as follows: For the year ended December 31, In thousands of U.S. dollars 2018 2017 2016 Pool revenue (1) Scorpio MR Pool Limited $ 225,181 $ 217,141 $ 248,974 Scorpio LR2 Pool Limited 188,890 136,514 156,503 Scorpio Handymax Tanker Pool Limited 82,782 78,510 73,683 Scorpio LR1 Pool Limited 46,823 13,895 — Scorpio Panamax Tanker Pool Limited — 1,515 5,843 Scorpio Aframax Pool Limited — 1,170 — Voyage expenses (2) (1,290 ) (1,786 ) (1,128 ) Vessel operating costs (3) (34,272 ) (27,601 ) (22,526 ) Administrative expenses (4) (12,475 ) (10,744 ) (9,462 ) (1) These transactions relate to revenue earned in the Scorpio Pools. The Scorpio Pools are related party affiliates. When our vessels are in the Scorpio Pools, SCM, the pool manager, charges fees of $300 per vessel per day with respect to our LR1/Panamax and Aframax vessels, $250 per vessel per day with respect to our LR2 vessels, and $325 per vessel per day with respect to each of our Handymax and MR vessels, plus a commission of 1.50% on gross revenue per charter fixture. These are the same fees that SCM charges other vessels in these pools, including third party owned vessels. In September 2018, we entered into an agreement with SCM whereby SCM will reimburse a portion of the commissions that SCM charges the Company’s vessels to effectively reduce such to 0.85% of gross revenue per charter fixture, effective from September 1, 2018 and ending on June 1, 2019. (2) Related party expenditures included within voyage expenses in the consolidated statements of income or loss consist of the following: ◦ Expenses due to SCM, a related party affiliate, for commissions related to the commercial management services provided by SCM under the commercial management agreement for vessels that are not in one of the Scorpio Pools. SCM’s services include securing employment, in the spot market and on time charters, for our vessels. When not in one of the Scorpio Pools, each vessel pays (i) flat fees of $250 per day for LR1/Panamax and LR2/Aframax vessels and $300 per day for Handymax and MR vessels and (ii) commissions of 1.25% of their gross revenue per charter fixture. These expenses are included in voyage expenses in the consolidated statements of income or loss. In September 2018, we entered into an agreement with SCM whereby SCM will reimburse a portion of the commissions that SCM charges the Company’s vessels to effectively reduce such to 0.85% of gross revenue per charter fixture, effective from September 1, 2018 and ending on June 1, 2019. • Voyage expenses of $25,747 charged by a related party port agent during the year ended December 31, 2018 . SSH has a majority equity interest in a port agent that provides supply and logistical services for vessels operating in its regions. No voyage expenses were charged by this port agent during the years ended December 31, 2017 and 2016. The fees and rates charged by this port agent are based on the prevailing market rates for such services in each respective region. (3) Related party expenditures included within vessel operating costs in the consolidated statements of income or loss consist of the following: • Technical management fees of $30.1 million , $22.9 million , and $19.5 million charged by SSM, a related party affiliate, during the years ended December 31, 2018, 2017 and 2016 respectively. SSM’s services include day-to-day vessel operations, performing general maintenance, monitoring regulatory and classification society compliance, customer vetting procedures, supervising the maintenance and general efficiency of vessels, arranging the hiring of qualified officers and crew, arranging and supervising drydocking and repairs, purchasing supplies, spare parts and new equipment for vessels, appointing supervisors and technical consultants, and providing technical support. • Insurance related expenses of $2.6 million , $4.3 million and $3.0 million incurred through a related party insurance broker during the years ended December 31, 2018, 2017 and 2016, respectively. In 2016, an Executive Officer of the Company acquired a minority interest, which in 2018 increased to a majority interest, in an insurance broker which arranges hull and machinery and war risk insurance for certain of our owned and finance leased vessels. This broker has arranged such policies for the Company since 2010 and the extent of the coverage and the manner in which the policies are priced did not change as a result of this transaction. In September 2018, the Executive Officer disposed of his interest in the insurance broker in its entirety to a third party not affiliated with the Company. The amounts recorded reflect the amortization of the policy premiums through September 2018, which are paid directly to the broker, who then remits the premiums to the underwriters. • Vessel operating expenses of $1.6 million and $0.4 million charged by a related party port agent during the years ended December 31, 2018 and 2017, respectively. SSH has a majority equity interest in a port agent that provides supply and logistical services for vessels operating in its regions. The fees and rates charged by this port agent are based on the prevailing market rates for such services in each respective region. (4) We have an Amended Administrative Services Agreement with SSH for the provision of administrative staff and office space, and administrative services, including accounting, legal compliance, financial and information technology services. SSH is a related party to us. We reimburse SSH for the reasonable direct or indirect expenses that are incurred on our behalf. SSH also arranges vessel sales and purchases for us. The services provided to us by SSH may be sub-contracted to other entities within Scorpio. The expenses incurred under this agreement were as follows, and were recorded in general and administrative expenses in the consolidated statement of income or loss. • The expense for the year ended December 31, 2018 of $12.5 million included (i) administrative fees of $11.1 million charged by SSH, (ii) restricted stock amortization of $1.3 million , which relates to the issuance of an aggregate of 114,400 shares of restricted stock to SSH employees for no cash consideration in May 2014, September 2014, July 2015, July 2016 and December 2017, and (iii) the reimbursement of expenses of $46,535 . • The expense for the year ended December 31, 2017 of $10.7 million included (i) administrative fees of $9.0 million charged by SSH, (ii) restricted stock amortization of $1.2 million , which relates to the issuance of an aggregate of 114,400 shares of restricted stock to SSH employees for no cash consideration in May 2014, September 2014, July 2015, July 2016 and December 2017 and (iii) the reimbursement of expenses of $0.5 million . • The expense for the year ended December 31, 2016 of $9.5 million included (i) administrative fees of $7.3 million charged by SSH, (ii) restricted stock amortization of $1.6 million , which relates to the issuance of an aggregate of 79,500 shares of restricted stock to SSH employees for no cash consideration in May and September 2014, July 2015 and July 2016 and (iii) the reimbursement of expenses of $0.6 million . We had the following balances with related party affiliates, which have been included in the consolidated balance sheets: As of December 31, In thousands of U.S. dollars 2018 2017 Assets: Accounts receivable (due from the Scorpio Pools) (1) $ 66,178 $ 44,880 Accounts receivable and prepaid expenses (SSM) (2) 2,461 6,391 Accounts receivable and prepaid expenses (SCM) (3) 2,511 — Accounts receivable and prepaid expenses (related party insurance broker) (4) — 2,428 Other assets (pool working capital contributions) (5) 42,973 41,401 Liabilities: Accounts payable and accrued expenses (SSM) 832 766 Accounts payable and accrued expenses (related party port agent) 459 95 Accounts payable and accrued expenses (SSH) 409 190 Accounts payable and accrued expenses (SCM) 389 191 Accounts payable and accrued expenses (owed to the Scorpio Pools) 66 462 Accounts payable and accrued expenses (related party insurance broker) — 2,190 (1) Accounts receivable due from the Scorpio Pools relate to hire receivables for revenues earned and receivables from working capital contributions. The amounts as of December 31, 2018 and 2017 include $22.9 million and $25.7 million , respectively, of working capital contributions made on behalf of our vessels to the Scorpio Pools. Upon entrance into such pools, all vessels are required to make working capital contributions of both cash and bunkers. Additional working capital contributions can be made from time to time based on the operating needs of the pools. These amounts are accounted for and repaid as follows: • For vessels in the Scorpio Handymax Tanker Pool, the initial contribution amount is repaid, without interest, upon a vessel’s exit from the pool no later than six months after the exit date. Bunkers on board a vessel exiting the pool are credited against such repayment at the actual invoice price of the bunkers. For all owned or finance leased vessels we assume that these contributions will not be repaid within 12 months and are thus classified as non-current within other assets on the consolidated balance sheets. For time or bareboat chartered-in vessels we classify the initial contributions as current (within accounts receivable) or non-current (within other assets) according to the expiration of the contract. Any additional working capital contributions are repaid when sufficient net revenues become available to cover such amounts. • For vessels in the Scorpio MR Pool and Scorpio Panamax Tanker Pool, any contributions are repaid, without interest, when such vessel has earned sufficient net revenues to cover the value of such working capital contributed. Accordingly, we classify such amounts as current (within accounts receivable). • For vessels in the Scorpio LR2 Pool, Scorpio Aframax Pool and Scorpio LR1 Pool, the initial contribution amount is repaid, without interest, upon a vessel’s exit from each pool. Bunkers on board a vessel exiting the pool are credited against such repayment at the actual invoice price of the bunkers. For all owned or finance leased vessels we assume that these contributions will not be repaid within 12 months and are thus classified as non-current within other assets on the consolidated balance sheets. For time or bareboat chartered-in vessels we classify the initial contributions as current (within accounts receivable) or non-current (within other assets) according to the expiration of the contract. Any additional working capital contributions are repaid when sufficient net revenues become available to cover such amounts and are therefore classified as current. (2) Accounts receivable and prepaid expenses from SSM relate to advances made for vessel operating expenses (such as crew wages) that will either be reimbursed or applied against future costs. (3) Accounts receivable and prepaid expenses from SCM primarily relate to the reduction of commission rebate to 0.85% of gross revenue per charter fixture as described above. (4) Accounts receivable and prepaid expenses from related-party insurance brokerage firm (as discussed above) relate to premiums which have been prepaid and are being amortized over the term of the respective policy. In September 2018, the Executive Officer who had an ownership interest in this firm disposed of their interest in its entirety to a third party not affiliated with the Company. (5) Represents the non-current portion of working capital receivables as described above. The table below shows key management remuneration for the years ended December 31, 2018 , 2017 and 2016 : For the year ended December 31, In thousands of U.S. dollars 2018 2017 2016 Short-term employee benefits (salaries) $ 5,436 $ 6,614 $ 8,786 Share-based compensation (1) 20,316 19,113 25,575 Total $ 25,752 $ 25,727 $ 34,361 (1) Represents the amortization of restricted stock issued under our equity incentive plans as described in Note 16.

Vessel revenue (Tables)

Vessel revenue (Tables)	12 Months Ended
	Dec. 31, 2018
Analysis of income and expense [abstract]
Revenue Sources	Revenue Sources For the year ended December 31, In thousands of U.S. dollars 2018 2017 2016 Pool revenue $ 543,784 $ 458,730 $ 485,003 Time charter revenue 34,015 37,411 36,694 Voyage revenue (spot market) 7,248 16,591 — Other revenue — — 1,050 $ 585,047 $ 512,732 $ 522,747

Operating Leases (Tables)

Operating Leases (Tables)	12 Months Ended
	Dec. 31, 2018
Leases 1 [Abstract]
Schedule of operating leases and future minimum lease payments	The following table depicts our time or bareboat chartered-in vessel commitments during the year ended December 31, 2018 : Name Year built Vessel class Charter type Delivery (1) Charter Expiration Rate ($/ day) Active as of December 31, 2018 1 Silent 2007 Handymax Bareboat January-17 March-19 7,500 2 Single 2007 Handymax Bareboat January-17 March-19 7,500 3 Star I 2007 Handymax Bareboat January-17 March-19 7,500 4 Steel 2008 Handymax Bareboat January-17 March-19 6,000 5 Sky 2008 Handymax Bareboat January-17 March-19 6,000 6 Stone I 2008 Handymax Bareboat January-17 March-19 6,000 7 Style 2008 Handymax Bareboat January-17 March-19 6,000 8 Miss Benedetta 2012 MR Time Charter March-18 January-19 14,000 9 STI Beryl 2013 MR Bareboat April-17 April-25 8,800 (2) 10 STI Le Rocher 2013 MR Bareboat April-17 April-25 8,800 (2) 11 STI Larvotto 2013 MR Bareboat April-17 April-25 8,800 (2) Time or bareboat charters that expired in 2018 1 Krisjanis Valdemars 2007 Handymax Time Charter February-11 March-18 11,250 2 Vukovar 2015 MR Time Charter May-15 April-18 17,034 3 Kraslava 2007 Handymax Time Charter January-11 May-18 11,250 4 Zefyros 2013 MR Time Charter July-16 May-18 13,250 5 CPO New Zealand 2011 MR Time Charter September-16 August-18 15,250 6 CPO Australia 2011 MR Time Charter September-16 August-18 15,250 7 Densa Alligator 2013 LR2 Time Charter February-18 August-18 14,300 8 Ance 2006 MR Time Charter October-16 September-18 13,500 9 Gan-Trust 2013 MR Time Charter January-13 December-18 13,950 10 Densa Crocodile 2015 LR2 Time Charter June-18 December-18 14,800 (1) Represents delivery date or estimated delivery date. (2) In April 2017, we sold and leased back this vessel, on a bareboat basis, for a period of up to eight years for $8,800 per day. The sales price was $29.0 million, and we have the option to purchase this vessel beginning at the end of the fifth year of the agreement through the end of the eighth year of the agreement, at market-based prices. Additionally, a deposit of $4.35 million was retained by the buyer and will either be applied to the purchase price of the vessel if a purchase option is exercised, or refunded to us at the expiration of the agreement. The obligations under these agreements will be repaid as follows: As of December 31, In thousands of U.S. dollars 2018 2017 Less than 1 year $ 14,241 $ 52,532 1 - 5 years 38,570 42,839 5+ years 12,628 22,264 Total $ 65,439 $ 117,635
Schedule of operating leases by lessor	The following table summarizes the terms of our time chartered-out vessels that were in place during the years ended December 31, 2018 and 2017 . Name Year built Type Delivery Date to the Charterer Charter Expiration Rate ($/ day) 1 STI Pimlico 2014 Handymax February-16 March-19 $ 18,000 2 STI Poplar 2014 Handymax January-16 February-19 $ 18,000 3 STI Notting Hill 2015 MR November-15 October-18 $ 20,500 4 STI Westminster 2015 MR December-15 October-18 $ 20,500 5 STI Rose 2015 LR2 February-16 February-19 $ 28,000 The future minimum payments due to us under these non-cancellable leases are set forth below. These minimum payments are shown net of address commissions, which are deducted upon payment. As of December 31, In thousands of U.S. dollars 2018 2017 Less than 1 year $ 2,581 $ 35,992 1 - 5 years — 2,176 5+ years — — Total $ 2,581 $ 38,168

General and administrative ex_2

General and administrative expenses (Tables)	12 Months Ended
	Dec. 31, 2018
Analysis of income and expense [abstract]
Disclosure of general and administrative expenses	Employee benefit expenses consist of: For the year ended December 31, In thousands of U.S. dollars 2018 2017 2016 Short term employee benefits (salaries) $ 9,605 $ 9,196 $ 12,330 Share based compensation (see Note 16) 25,547 22,385 30,207 $ 35,152 $ 31,581 $ 42,537

Financial expenses (Tables)

Financial expenses (Tables)	12 Months Ended
	Dec. 31, 2018
Analysis of income and expense [abstract]
Schedule of Financial Expenses	The following is a breakdown of the current and non-current portion of our debt outstanding as of December 31, 2018 and December 31, 2017 : At December 31, In thousands of U.S. dollars 2018 2017 Current portion (1) $ 297,934 $ 113,036 Finance lease (2) 114,429 50,146 Current portion of long-term debt 412,363 163,182 Non-current portion (3) 1,192,000 1,937,018 Finance lease (4) 1,305,952 666,993 $ 2,910,315 $ 2,767,193 (1) The current portion at December 31, 2018 was net of unamortized deferred financing fees of $2.1 million . The current portion at December 31, 2017 was net of unamortized deferred financing fees of $1.7 million . (2) The current portion at December 31, 2018 was net of unamortized deferred financing fees of $0.8 million . The current portion at December 31, 2017 was net of unamortized deferred financing fees of $0.1 million . (3) The non-current portion at December 31, 2018 was net of unamortized deferred financing fees of $12.0 million . The non-current portion at December 31, 2017 was net of unamortized deferred financing fees of $33.4 million . (4) The non-current portion at December 31, 2018 was net of unamortized deferred financing fees of $8.7 million . The non-current portion at December 31, 2017 was net of unamortized deferred financing fees of $1.1 million . The table below details the dividends issued during the year ended December 31, 2018 and the corresponding effect on the conversion rate of the Convertible Notes due 2022: Record Date Dividends per share Share Adjusted Conversion Rate (1) June 6, 2018 $ 0.10 25.08 September 20, 2018 $ 0.10 25.21 December 5, 2018 $ 0.10 25.34 (1) Per $1,000 principal amount of the Convertible Notes. we made the following drawdown to partially finance the purchase of one newbuilding MR during the year ended December 31, 2018 : Drawdown amount (in millions of U.S. dollars) Drawdown date Collateral $ 21.5 January 2018 STI Jardins The table below details the dividends declared from the issuance of the Convertible Notes due 2019 through December 31, 2018 and their corresponding effect to the conversion rate of the Convertible Notes due 2019 (as adjusted for the reverse stock split that was effective in January 2019). The conversion rate as of December 31, 2018 was 10.05396 . Record Date Dividends per share Share Adjusted Conversion Rate (1) August 22, 2014 $ 1.000 8.28556 November 25, 2014 $ 1.200 8.40184 March 13, 2015 $ 1.200 8.52216 May 21, 2015 $ 1.250 8.63738 August 14, 2015 $ 1.250 8.74349 November 24, 2015 $ 1.250 8.86790 March 10, 2016 $ 1.250 9.05311 May 11, 2016 $ 1.250 9.25323 September 15, 2016 $ 1.250 9.49345 November 25, 2016 $ 1.250 9.77039 February 23, 2017 $ 0.100 9.79316 May 11, 2017 $ 0.100 9.81588 September 25, 2017 $ 0.100 9.84450 December 13, 2017 $ 0.100 9.87742 March 12, 2018 $ 0.100 9.92056 June 6, 2018 $ 0.100 9.95277 September 20, 2018 $ 0.100 10.00515 December 5, 2018 $ 0.100 10.05396 (1) Per $1,000 principal amount. December 31, 2018 : Activity Balance as of December 31, 2018 consists of: In thousands of U.S. dollars Carrying Value as of December 31, 2017 Drawdowns Repayments Other Activity (1) Carrying Value as of December 31, 2018 Current Non-Current K-Sure Credit Facility $ 239,919 $ — $ (239,919 ) $ — $ — $ — $ — KEXIM Credit Facility 332,950 — (33,650 ) — 299,300 33,650 265,650 Credit Suisse Credit Facility 53,488 — (53,488 ) — — — — ABN AMRO Credit Facility 113,312 — (12,804 ) — 100,508 8,554 91,954 ING Credit Facility 109,844 38,675 (4,343 ) — 144,176 12,737 131,439 BNP Paribas Credit Facility 42,550 — (42,550 ) — — — — Scotiabank Credit Facility 28,860 — (28,860 ) — — — — NIBC Credit Facility 34,712 — (34,712 ) — — — — 2018 NIBC Credit Facility — 35,658 (807 ) — 34,851 3,230 31,621 2016 Credit Facility 195,979 — (195,979 ) — — — — 2017 Credit Facility 141,814 21,450 (18,499 ) — 144,765 13,265 131,500 HSH Credit Facility 15,416 — (15,416 ) — — — — DVB 2017 Credit Facility 78,440 — (78,440 ) — — — — Credit Agricole Credit Facility 103,914 — (8,568 ) 865 96,211 7,745 88,466 ABN / K-Sure Credit Facility 49,908 — (3,851 ) 775 46,832 3,106 43,726 Citibank / K-Sure Credit Facility 104,052 — (8,416 ) 1,973 97,609 6,524 91,085 ABN / SEB Credit Facility — 120,575 (5,750 ) — 114,825 11,500 103,325 Ocean Yield Lease Financing 169,016 — (10,458 ) 199 158,757 10,515 148,242 CMBFL Lease Financing 65,915 — (4,908 ) 191 61,198 4,725 56,473 BCFL Lease Financing (LR2s) 104,187 — (7,332 ) 599 97,454 7,005 90,449 CSSC Lease Financing 269,965 — (17,309 ) (824 ) 251,832 18,104 233,728 BCFL Lease Financing (MRs) 109,232 — (10,401 ) — 98,831 11,021 87,810 2018 CMBFL Lease Financing — 141,600 (5,057 ) — 136,543 10,114 126,429 $116.0 Million Lease Financing — 114,840 (2,166 ) — 112,674 6,633 106,041 AVIC Lease Financing — 145,000 (5,897 ) — 139,103 11,794 127,309 China Huarong Lease Financing — 144,000 (6,750 ) — 137,250 13,500 123,750 $157.5 Million Lease Financing — 157,500 (5,414 ) — 152,086 14,143 137,943 COSCO Lease Financing — 88,000 (3,850 ) — 84,150 7,700 76,450 Unsecured Senior Notes Due 2020 53,750 — — — 53,750 — 53,750 Unsecured Senior Notes Due 2019 57,500 — — — 57,500 57,500 — Convertible Notes due 2019 (2) 328,717 — — (186,537 ) 142,180 142,180 — Convertible Notes due 2022 (2) — — — 171,469 171,469 — 171,469 $ 2,803,440 $ 1,007,298 $ (865,594 ) $ (11,290 ) $ 2,933,854 $ 415,245 $ 2,518,609 Less: deferred financing fees (36,247 ) (13,871 ) — 26,579 (23,539 ) (2,882 ) (20,657 ) Total $ 2,767,193 $ 993,427 $ (865,594 ) $ 15,289 $ 2,910,315 $ 412,363 $ 2,497,952 (1) Relates to non-cash accretion or amortization of (i) obligations assumed as part of the Merger with NPTI, which were recorded at fair value on the closing date (described below) and (ii) accretion of our Convertible Notes due 2019 and Convertible Notes due 2022. (2) In May 2018 and July 2018, we exchanged $188.5 million and $15.0 million (out of $348.5 million outstanding), respectively, in aggregate principal amount of our Convertible Notes due 2019 for $188.5 million and $15.0 million , respectively, in aggregate principal amount of the Company's new 3.0% Convertible Senior Notes due 2022. As part of these agreements, and for certain of the facilities, the minimum threshold for the aggregate fair market value of the vessels as a percentage of the then aggregate principal amount of each facility was revised to be no less than the following: Facility Minimum ratio KEXIM Credit Facility 155% 2017 Credit Facility 155% ABN Credit Facility 145% through June 30, 2019, 150% thereafter Financial expenses consist of: For the year ended December 31, In thousands of U.S. dollars 2018 2017 2016 Interest expense on debt (1) $ 145,871 $ 86,703 $ 63,858 Amortization of deferred financing fees 10,541 13,381 14,149 Write-off of deferred financing fees (2) 13,212 2,467 14,479 Accretion of convertible notes (as described in Note 13) 13,225 12,211 11,562 Accretion of premiums and discounts on assumed debt (3) 3,779 1,478 — Total financial expenses $ 186,628 $ 116,240 $ 104,048 (1) The increase in interest expense is primarily attributable to increases in the Company’s average carrying value of debt balance in addition to increases in LIBOR rates throughout 2018. Average carrying value of our debt outstanding during the years ended December 31, 2018 , 2017 and 2016 was $2,806.9 million , $2,265.7 million and $1,986.6 million , respectively. The increase in average carrying value of our debt balance during the year ended December 31, 2018 was primarily the result of the Merger and the assumption of NPTI's indebtedness of $907.4 million in aggregate in addition to a series of initiatives to refinance the existing indebtedness on certain of the vessels in our fleet (as described in Note 13). Interest payable during those periods was offset by interest capitalized from vessels under construction (as described in Note 7) of $0.2 million , $4.2 million and $6.3 million , during the years ended December 31, 2018 , 2017 and 2016 respectively. (2) The write-off of deferred financing fees in the year ended December 31, 2018 include (i) $1.2 million related to the exchange of our Convertible Notes due 2019 in May and July 2018 (as described in Note 11), and (ii) $12.0 million related to the initiatives to refinance the existing indebtedness on certain of the vessels in our fleet (as described in Note 13). The write-off of deferred financing fees in the year ended December 31, 2017 includes (i) $0.5 million related to the repayment of debt as a result of the sales of two vessels (as described in Note 6), (ii) $0.1 million related to the repayment of debt as a result of the sale and operating leasebacks of three vessels (as described in Note 19), (iii) $ 1.1 million related to the repayment of debt as a result of the finance lease arrangements for five vessels (as described in Note 13), and (iv) $0.8 million related to the refinancing and repayment of various secured and unsecured borrowings during the year ended December 31, 2017 . The write-off of deferred financing fees in the year ended December 31, 2016 includes (i) $3.2 million related to the repayment of debt as a result of the sales of five vessels, and (ii) $11.2 million related to the refinancing of outstanding borrowings under various credit facilities and the repurchase of our Convertible Notes due 2019 as described in Note 13. (3) The accretion of premiums and discounts represent the accretion or amortization of the fair value adjustments relating to the indebtedness assumed from NPTI that have been recorded since the closing dates of the NPTI Vessel Acquisition and the September Closing.

(Loss) _ earnings per share (Ta

(Loss) / earnings per share (Tables)	12 Months Ended
	Dec. 31, 2018
Earnings per share [abstract]
Schedule of basic and diluted (loss) / earnings per share	The calculation of both basic and diluted (loss) / earnings per share is based on net income or loss attributable to equity holders of the parent and weighted average outstanding shares of: For the year ended December 31, In thousands of U.S. dollars except for share data 2018 2017 2016 Net loss attributable to equity holders of the parent - basic $ (190,071 ) $ (158,240 ) $ (24,903 ) Convertible notes interest expense — — — Convertible notes deferred financing amortization — — — Net loss attributable to equity holders of the parent - diluted $ (190,071 ) $ (158,240 ) $ (24,903 ) Basic weighted average number of shares 34,824,311 21,533,340 16,111,865 Effect of dilutive potential basic shares: Restricted stock — — — Convertible notes — — — — — — Diluted weighted average number of shares 34,824,311 21,533,340 16,111,865 Loss Per Share: Basic $ (5.46 ) $ (7.35 ) $ (1.55 ) Diluted $ (5.46 ) $ (7.35 ) $ (1.55 )

Financial instruments - finan_2

Financial instruments - financial and other risks (Tables)	12 Months Ended
	Dec. 31, 2018
Financial Instruments [Abstract]
Fair Values and Carrying Values of Financial Assets	The fair values and carrying values of our financial instruments at December 31, 2018 and 2017 , respectively, are shown in the table below. Categories of Financial Instruments As of December 31, 2018 As of December 31, 2017 Amounts in thousands of U.S. dollars Fair value Carrying Value Fair value Carrying Value Financial assets Cash and cash equivalents (1) $ 593,652 $ 593,652 $ 186,462 $ 186,462 Restricted cash (2) 12,285 12,285 11,387 11,387 Accounts receivable (3) 69,718 69,718 65,458 65,458 Investment in ballast water treatment supplier (4) 1,751 1,751 — — Working capital contributions to Scorpio Pools (5) 42,973 42,973 41,401 41,401 Seller's credit on sale leaseback vessels (6) 9,087 9,087 8,581 8,581 Financial liabilities Accounts payable (7) $ 11,865 $ 11,865 $ 13,044 $ 13,044 Accrued expenses (7) 22,972 22,972 32,838 32,838 Secured bank loans (8) 1,066,452 1,066,452 1,615,248 1,615,248 Finance lease liability (9) 1,420,381 1,420,381 717,139 717,139 Unsecured Senior Notes Due 2020 (10) 52,584 53,750 53,449 53,750 Unsecured Senior Notes Due 2019 (10) 58,029 57,500 58,466 57,500 Convertible Notes due 2019 (11) 140,267 145,000 316,184 348,500 Convertible Notes due 2022 (11) 163,842 203,500 — — (1) Cash and cash equivalents are considered Level 1 items as they represent liquid assets with short-term maturities. (2) Restricted cash are considered Level 1 items due to the liquid nature of these assets. (3) We consider that the carrying amount of accounts receivable approximate their fair value due to the relative short maturity of these instruments. (4) We consider the value of our minority interest in our ballast water treatment system supplier (as described in Note 9) to be a Level 3 fair value measurement, as this supplier is a private company and the value has been determined based on unobservable market data (i.e. the proceeds that we would receive if we exercised the put option set forth in the agreement in full). Moreover, we consider that its carrying value approximates fair value given that the value of this investment is contractually limited to the strike prices set forth in the put and call options prescribed in the agreement and the difference between the two prices is not significant. The difference in the aggregate value of the investment, based on the spread between the exercise prices of the put and call options is $0.6 million . (5) Non-current working capital contributions to the Scorpio Pools are repaid, without interest, upon a vessel’s exit from the pool. For all owned vessels, we assume that these contributions will not be repaid within 12 months and are thus classified as non-current within Other Assets on the consolidated balance sheets. We consider that their carrying values approximate fair value given that the amounts due are contractually fixed based on the terms of each pool agreement. (6) The seller's credit on lease financed vessels represents the present value of the deposits of $4.35 million per vessel ( $13.1 million in aggregate) that was retained by the buyer as part of the sale and operating leasebacks of STI Beryl , STI Le Rocher and STI Larvotto , which is described in Note 13. This deposit will either be applied to the purchase price of the vessel if a purchase option is exercised, or refunded to us at the expiration of the agreement. This deposit has been recorded as a financial asset measured at amortized cost. The present value of this deposit has been calculated based on the interest rate that is implied in the lease, and the carrying value will accrete over the life of the lease using the effective interest method, through interest income, until expiration. We consider that its carrying value approximates fair value given that its value is contractually fixed based on the terms of each lease. (7) We consider that the carrying amounts of accounts payable and accrued expenses approximate the fair value due to the relative short maturity of these instruments. (8) The carrying value of our secured bank loans are measured at amortized cost using the effective interest method. We consider that their carrying value approximates fair value because the interest rates on these instruments change with, or approximate, market interest rates. Accordingly, we consider their fair value to be a Level 2 measurement. These amounts are shown net of $12.6 million and $29.9 million of unamortized deferred financing fees as of December 31, 2018 and 2017 , respectively. (9) The carrying value of our obligations due under finance lease arrangements are measured at amortized cost using the effective interest method. We consider that their carrying value approximates fair value because the interest rates on these instruments change with, or approximate, market interest rates. These amounts are shown net of $9.5 million and $1.2 million of unamortized deferred financing fees as of December 31, 2018 and 2017 , respectively. (10) The carrying value of our Unsecured Senior Notes Due 2020 and 2019 are measured at amortized cost using the effective interest method. The carrying values shown in the table are the face value of the notes. These notes are shown net of $0.5 million and $0.5 million of unamortized deferred financing fees, respectively, on our consolidated balance sheet as of December 31, 2018 . These notes are shown net of $0.8 million and $1.5 million of unamortized deferred financing fees, respectively, on our consolidated balance sheet as of December 31, 2017. Our Senior Notes Due 2020 and 2019 are quoted on the New York Stock Exchange under the symbols 'SBNA' and 'SBBC', respectively. We consider their fair values to be Level 1 measurements due to their quotation on an active exchange. (11) The carrying value of our Convertible Notes due 2019 and Convertible Notes 2022 shown in the table above are their face value. The liability component of the Convertible Notes due 2019 has been recorded within Long-term debt on the consolidated balance sheet as of December 31, 2018 and 2017, net of $0.4 million and $2.8 million , respectively, of unamortized deferred financing fees. The equity component of the Convertible Notes due 2019 has been recorded within Additional paid-in capital on the consolidated balance sheet, net of $1.9 million , of unamortized deferred financing fees. These instruments are traded in inactive markets and are valued based on quoted prices on the recent trading activity. Accordingly, we consider its fair value to be a Level 2 measurement.
Fair Values and Carrying Values of Financial Liabilities	The fair values and carrying values of our financial instruments at December 31, 2018 and 2017 , respectively, are shown in the table below. Categories of Financial Instruments As of December 31, 2018 As of December 31, 2017 Amounts in thousands of U.S. dollars Fair value Carrying Value Fair value Carrying Value Financial assets Cash and cash equivalents (1) $ 593,652 $ 593,652 $ 186,462 $ 186,462 Restricted cash (2) 12,285 12,285 11,387 11,387 Accounts receivable (3) 69,718 69,718 65,458 65,458 Investment in ballast water treatment supplier (4) 1,751 1,751 — — Working capital contributions to Scorpio Pools (5) 42,973 42,973 41,401 41,401 Seller's credit on sale leaseback vessels (6) 9,087 9,087 8,581 8,581 Financial liabilities Accounts payable (7) $ 11,865 $ 11,865 $ 13,044 $ 13,044 Accrued expenses (7) 22,972 22,972 32,838 32,838 Secured bank loans (8) 1,066,452 1,066,452 1,615,248 1,615,248 Finance lease liability (9) 1,420,381 1,420,381 717,139 717,139 Unsecured Senior Notes Due 2020 (10) 52,584 53,750 53,449 53,750 Unsecured Senior Notes Due 2019 (10) 58,029 57,500 58,466 57,500 Convertible Notes due 2019 (11) 140,267 145,000 316,184 348,500 Convertible Notes due 2022 (11) 163,842 203,500 — — (1) Cash and cash equivalents are considered Level 1 items as they represent liquid assets with short-term maturities. (2) Restricted cash are considered Level 1 items due to the liquid nature of these assets. (3) We consider that the carrying amount of accounts receivable approximate their fair value due to the relative short maturity of these instruments. (4) We consider the value of our minority interest in our ballast water treatment system supplier (as described in Note 9) to be a Level 3 fair value measurement, as this supplier is a private company and the value has been determined based on unobservable market data (i.e. the proceeds that we would receive if we exercised the put option set forth in the agreement in full). Moreover, we consider that its carrying value approximates fair value given that the value of this investment is contractually limited to the strike prices set forth in the put and call options prescribed in the agreement and the difference between the two prices is not significant. The difference in the aggregate value of the investment, based on the spread between the exercise prices of the put and call options is $0.6 million . (5) Non-current working capital contributions to the Scorpio Pools are repaid, without interest, upon a vessel’s exit from the pool. For all owned vessels, we assume that these contributions will not be repaid within 12 months and are thus classified as non-current within Other Assets on the consolidated balance sheets. We consider that their carrying values approximate fair value given that the amounts due are contractually fixed based on the terms of each pool agreement. (6) The seller's credit on lease financed vessels represents the present value of the deposits of $4.35 million per vessel ( $13.1 million in aggregate) that was retained by the buyer as part of the sale and operating leasebacks of STI Beryl , STI Le Rocher and STI Larvotto , which is described in Note 13. This deposit will either be applied to the purchase price of the vessel if a purchase option is exercised, or refunded to us at the expiration of the agreement. This deposit has been recorded as a financial asset measured at amortized cost. The present value of this deposit has been calculated based on the interest rate that is implied in the lease, and the carrying value will accrete over the life of the lease using the effective interest method, through interest income, until expiration. We consider that its carrying value approximates fair value given that its value is contractually fixed based on the terms of each lease. (7) We consider that the carrying amounts of accounts payable and accrued expenses approximate the fair value due to the relative short maturity of these instruments. (8) The carrying value of our secured bank loans are measured at amortized cost using the effective interest method. We consider that their carrying value approximates fair value because the interest rates on these instruments change with, or approximate, market interest rates. Accordingly, we consider their fair value to be a Level 2 measurement. These amounts are shown net of $12.6 million and $29.9 million of unamortized deferred financing fees as of December 31, 2018 and 2017 , respectively. (9) The carrying value of our obligations due under finance lease arrangements are measured at amortized cost using the effective interest method. We consider that their carrying value approximates fair value because the interest rates on these instruments change with, or approximate, market interest rates. These amounts are shown net of $9.5 million and $1.2 million of unamortized deferred financing fees as of December 31, 2018 and 2017 , respectively. (10) The carrying value of our Unsecured Senior Notes Due 2020 and 2019 are measured at amortized cost using the effective interest method. The carrying values shown in the table are the face value of the notes. These notes are shown net of $0.5 million and $0.5 million of unamortized deferred financing fees, respectively, on our consolidated balance sheet as of December 31, 2018 . These notes are shown net of $0.8 million and $1.5 million of unamortized deferred financing fees, respectively, on our consolidated balance sheet as of December 31, 2017. Our Senior Notes Due 2020 and 2019 are quoted on the New York Stock Exchange under the symbols 'SBNA' and 'SBBC', respectively. We consider their fair values to be Level 1 measurements due to their quotation on an active exchange. (11) The carrying value of our Convertible Notes due 2019 and Convertible Notes 2022 shown in the table above are their face value. The liability component of the Convertible Notes due 2019 has been recorded within Long-term debt on the consolidated balance sheet as of December 31, 2018 and 2017, net of $0.4 million and $2.8 million , respectively, of unamortized deferred financing fees. The equity component of the Convertible Notes due 2019 has been recorded within Additional paid-in capital on the consolidated balance sheet, net of $1.9 million , of unamortized deferred financing fees. These instruments are traded in inactive markets and are valued based on quoted prices on the recent trading activity. Accordingly, we consider its fair value to be a Level 2 measurement.
Schedule of Contractual Maturity of Secured and Unsecured Credit Facilities	The following table details our remaining contractual maturity for our secured and unsecured credit facilities and lease financing arrangements. The amounts represent the future undiscounted cash flows of the financial liability based on the earliest date on which we can be required to pay. The table includes both interest and principal cash flows. As the interest cash flows are not fixed, the interest amount included has been determined by reference to the projected interest rates as illustrated by the yield curves existing at the reporting date. As of December 31, In thousands of U.S. dollars 2018 2017 Less than 1 month $ 18,994 $ 24,868 1-3 months 140,710 65,294 3 months to 1 year 419,070 219,144 1-3 years 1,049,739 1,215,144 3-5 years 1,095,717 1,222,889 5+ years 910,050 684,330 Total $ 3,634,280 $ 3,431,669

General information and signi_4

General information and significant accounting policies - Narrative (Details)

Jan. 18, 2019shares

Dec. 31, 2018USD ($)classvessel$ / sharesshares

Dec. 31, 2017USD ($)tanker$ / shares

Mar. 15, 2019shares

Feb. 28, 2019$ / shares

Jan. 17, 2019shares

Jan. 01, 2019USD ($)

Nov. 30, 2018tanker

Jul. 31, 2018USD ($)

May 31, 2018USD ($)

Jan. 01, 2018USD ($)

Dec. 31, 2017shares

Dec. 31, 2017USD ($)

Dec. 31, 2017vessel

Dec. 31, 2017tanker

Sep. 30, 2017sharesvessel

Sep. 01, 2017sharesvessel

Jun. 30, 2017vessel

Jun. 14, 2017USD ($)vesseltanker

May 31, 2017sharesvessel

May 30, 2017shares

Jun. 30, 2014USD ($)

Disclosure of detailed information about property, plant and equipment [line items]

Number of vessels operating in the spot market | tanker

2

Accumulated deficit | $

$ (348,307,000)

$ (158,240,000)

Number of vessel classes | class

4

Common stock, par value (in dollars per share) | $ / shares

$ 0.01

Increase (decrease) due to application of IFRS 15 [member]

Disclosure of detailed information about property, plant and equipment [line items]

Accumulated deficit | $

$ (3,888)

Convertible Notes due 2019 [Member]

Disclosure of detailed information about property, plant and equipment [line items]

Aggregate principal amount notes issued | $

$ 15,000,000

$ 188,500,000

$ 360,000,000

Borrowings outstanding before debt exchange | $

348,500,000

Borrowings interest rate

2.375%

Convertible Notes due 2022 [Member]

Disclosure of detailed information about property, plant and equipment [line items]

Aggregate principal amount notes issued | $

$ 15,000,000

$ 188,500,000

Borrowings interest rate

3.00%

Vessels [member]

Disclosure of detailed information about property, plant and equipment [line items]

Number of vessels

109

77

107

Average scrap market rates period

4 years

Average time charter rate period used to establish growth rate

3 years

Growth rate in freight rates

2.47%

Discount rate used

8.29%

Number of vessels with fair value more than carrying value

34

8

Number of vessels with fair value less than carrying value

75

99

Impairment loss recognised in profit or loss | $

$ 0

$ 0

Estimated useful lives

25 years

Vessels [member] | Top of range [member]

Disclosure of detailed information about property, plant and equipment [line items]

Period for scheduled repairs and maintenance

60 months

Vessels [member] | Bottom of range [member]

Disclosure of detailed information about property, plant and equipment [line items]

Period for scheduled repairs and maintenance

30 months

Construction in progress [member]

Disclosure of detailed information about property, plant and equipment [line items]

Number of vessels

2

2

Impairment loss recognised in profit or loss | $

$ 0

Owned or financed lease product tankers [member] | Vessels [member]

Disclosure of detailed information about property, plant and equipment [line items]

Number of vessels

109

Time or bareboat chartered-in product tankers [member] | Vessels [member]

Disclosure of detailed information about property, plant and equipment [line items]

Number of vessels

11

Handymax [Member] | Owned or financed lease product tankers [member] | Vessels [member]

Disclosure of detailed information about property, plant and equipment [line items]

Number of vessels

14

Handymax [Member] | Time or bareboat chartered-in product tankers [member] | Vessels [member]

Disclosure of detailed information about property, plant and equipment [line items]

Number of vessels

7

MR [Member] | Construction in progress [member]

Disclosure of detailed information about property, plant and equipment [line items]

Number of vessels

2

MR [Member] | Owned or financed lease product tankers [member] | Vessels [member]

Disclosure of detailed information about property, plant and equipment [line items]

Number of vessels

45

MR [Member] | Time or bareboat chartered-in product tankers [member] | Vessels [member]

Disclosure of detailed information about property, plant and equipment [line items]

Number of vessels

4

LR1 [Member] | Owned or financed lease product tankers [member] | Vessels [member]

Disclosure of detailed information about property, plant and equipment [line items]

Number of vessels

12

LR2 [Member] | Owned or financed lease product tankers [member] | Vessels [member]

Disclosure of detailed information about property, plant and equipment [line items]

Number of vessels

38

Common stock [Member]

Disclosure of detailed information about property, plant and equipment [line items]

Number of shares outstanding (in shares) | shares

51,397,562

32,650,755

Common stock, shares issued (in shares) | shares

51,397,562

32,650,755

Common stock, par value (in dollars per share) | $ / shares

$ 0.01

$ 0.01

NPTI [Member]

Disclosure of detailed information about property, plant and equipment [line items]

Common stock, shares issued (in shares) | shares

5,500,000

NPTI [Member] | LR1 [Member]

Disclosure of detailed information about property, plant and equipment [line items]

Number of vessels acquired

12

12

NPTI [Member] | LR1 [Member] | Vessels [member]

Disclosure of detailed information about property, plant and equipment [line items]

Number of vessels acquired | tanker

4

NPTI [Member] | LR2 [Member]

Disclosure of detailed information about property, plant and equipment [line items]

Number of vessels acquired

15

15

NPTI [Member] | Common stock [Member]

Disclosure of detailed information about property, plant and equipment [line items]

Number of instruments or interests issued or issuable | shares

5,500,000

5,499,999

5,500,000

Common stock, shares issued (in shares) | shares

5,000,000

NPTI Vessel Acquisition [Member]

Disclosure of detailed information about property, plant and equipment [line items]

Cash transferred | $

$ 42,200,000

NPTI Vessel Acquisition [Member] | LR1 [Member] | Vessels [member]

Disclosure of detailed information about property, plant and equipment [line items]

Number of vessels acquired

4

4

NPTI September Closing [Member] | Vessels [member]

Disclosure of detailed information about property, plant and equipment [line items]

Number of vessels acquired

23

NPTI September Closing [Member] | LR1 [Member]

Disclosure of detailed information about property, plant and equipment [line items]

Number of vessels acquired

8

NPTI September Closing [Member] | LR1 [Member] | Vessels [member]

Disclosure of detailed information about property, plant and equipment [line items]

Number of vessels acquired

8

NPTI September Closing [Member] | LR2 [Member]

Disclosure of detailed information about property, plant and equipment [line items]

Number of vessels acquired

15

NPTI September Closing [Member] | LR2 [Member] | Vessels [member]

Disclosure of detailed information about property, plant and equipment [line items]

Number of vessels acquired

15

NPTI September Closing [Member] | Common stock [Member]

Disclosure of detailed information about property, plant and equipment [line items]

Number of instruments or interests issued or issuable | shares

5,499,999

Application of New Accounting Standard [Member] | Increase (decrease) due to application of IFRS 16 [Member]

Disclosure of detailed information about property, plant and equipment [line items]

Accumulated deficit | $

$ (2,200,000)

Right-of-use assets | $

48,700,000

Lease liabilities | $

$ 50,900,000

Major ordinary share transactions [Member] | Common stock [Member]

Disclosure of detailed information about property, plant and equipment [line items]

Reverse stock split of common shares

0.10

Number of shares outstanding (in shares) | shares

51,397,470

51,396,970

513,975,324

Common stock, par value (in dollars per share) | $ / shares

$ 0.01

General information and signi_5

General information and significant accounting policies - Summary of Impact of New Accounting Standard (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Disclosure of expected impact of initial application of new standards or interpretations [line items]
Revenue	$ 585,047	$ 512,732	$ 522,747
Operating expenses
Voyage expenses	(5,146)	(7,733)	(1,578)
Total operating expenses	(574,505)	(557,681)	(445,998)
Net loss	(190,071)	(158,240)	(24,903)
Total comprehensive loss	(190,071)	$ (158,240)	$ (24,903)
Increase (decrease) due to application of IFRS 15 [member]
Disclosure of expected impact of initial application of new standards or interpretations [line items]
Revenue	(173)
Operating expenses
Voyage expenses	177
Total operating expenses	177
Net loss	4
Total comprehensive loss	4
Previously stated [member]
Disclosure of expected impact of initial application of new standards or interpretations [line items]
Revenue	584,874
Operating expenses
Voyage expenses	(4,969)
Total operating expenses	(574,328)
Net loss	(190,067)
Total comprehensive loss	$ (190,067)

Merger with Navig8 Product Ta_3

Merger with Navig8 Product Tankers Inc - Additional Information (Details) $ / shares in Units, $ in Thousands	Sep. 01, 2017USD ($)warrantsharesvessel$ / shares	Jun. 14, 2017USD ($)entityvesseltankershares	May 30, 2017USD ($)$ / sharesshares	May 23, 2017shares	Sep. 30, 2017USD ($)sharesbusiness_acquisitionvessel	Jun. 30, 2017vesselshares	Dec. 31, 2018USD ($)warrant$ / sharesshares	Dec. 31, 2017USD ($)$ / sharesshares	Dec. 31, 2016USD ($)$ / shares	May 31, 2017sharesvessel
Disclosure of detailed information about business combination [line items]
Issuance of shares							$ 337,000	$ 303,500	$ 0
Transaction costs relating to Merger							$ 272	36,114	0
NPTI [Member] | Other related parties [member]
Disclosure of detailed information about business combination [line items]
Percentage of revenue due to entity from related party transactions				30.00%
Pool revenue, eliminated on a pro rata basis								$ 100
Common stock [Member]
Disclosure of detailed information about business combination [line items]
Common stock, shares issued (in shares) | shares							51,397,562	32,650,755
Number of shares outstanding (in shares) | shares							51,397,562	32,650,755
Common stock [Member] | NPTI [Member] | Other related parties [member]
Disclosure of detailed information about business combination [line items]
Shares issued in exchange for revenue from related party transactions | shares				33,696
Series A Redeemable Preferred Shares [Member] | NPTI [Member]
Disclosure of detailed information about business combination [line items]
Issuance of shares									$ 30,000
Number of shares outstanding (in shares) | shares	3,000,000
Redemption price per share (in USD per share) | $ / shares									$ 10
Redemption premium multiple									1.20
Fair value of redemption shares	$ 6,600
Redemption liability	39,500
Redemption price	30,000
Accrued and unpaid dividends redeemable shares	2,900
Redemption premium	6,600
NPTI [Member]
Disclosure of detailed information about business combination [line items]
Common stock, shares issued (in shares) | shares					5,500,000
Price per share (in USD per share) | $ / shares								$ 40.20
Liabilities incurred	$ 907,400
Number of business acquisitions | business_acquisition					2
Revenue of acquiree since acquisition date								$ 45,300
Net loss of acquiree since acquisition date								18,700
Revenue of combined entity as if combination occurred at beginning of period								594,500
Net loss of combined entity as if combination occurred at beginning of period								193,400
Transaction costs relating to Merger							$ 300	36,100
Number of warrants issued as consideration for termination | warrant	2
NPTI [Member] | Advisory and other professional fees [Member]
Disclosure of detailed information about business combination [line items]
Transaction costs relating to Merger								16,100
NPTI [Member] | Early termination of existing service age [Member]
Disclosure of detailed information about business combination [line items]
Transaction costs relating to Merger								17,700
Transaction costs relating to Merger, settled					$ 6,000
NPTI [Member] | Other costs [Member]
Disclosure of detailed information about business combination [line items]
Transaction costs relating to Merger								$ 2,600
NPTI [Member] | Common stock [Member]
Disclosure of detailed information about business combination [line items]
Common stock, shares issued (in shares) | shares			5,000,000
Price per share (in USD per share) | $ / shares			$ 40
Issuance of shares			$ 188,700
Number of instruments or interests issued or issuable | shares	5,499,999				5,500,000					5,500,000
NPTI [Member] | Warrant [Member]
Disclosure of detailed information about business combination [line items]
Number of instruments or interests issued or issuable | warrant	150,000						200,000
Exercise price (in USD per warrant) | $ / shares	$ 0.10						$ 0.10
NPTI [Member] | LR1 [Member]
Disclosure of detailed information about business combination [line items]
Number of vessels acquired | vessel					12					12
NPTI [Member] | LR2 [Member]
Disclosure of detailed information about business combination [line items]
Number of vessels acquired | vessel					15					15
NPTI [Member] | Vessels [member]
Disclosure of detailed information about business combination [line items]
Number of vessels intended to acquire | vessel										27
NPTI [Member] | Vessels [member] | LR1 [Member]
Disclosure of detailed information about business combination [line items]
Number of vessels acquired | tanker		4
NPTI Vessel Acquisition [Member]
Disclosure of detailed information about business combination [line items]
Cash transferred		$ 42,200
Number of entities acquired | entity		4
NPTI Vessel Acquisition [Member] | Common stock [Member]
Disclosure of detailed information about business combination [line items]
Shares issued upon exercise of warrants (in shares) | shares		22,222				22,222
NPTI Vessel Acquisition [Member] | Vessels [member] | LR1 [Member]
Disclosure of detailed information about business combination [line items]
Number of vessels acquired | vessel		4				4
NPTI September Closing [Member] | Common stock [Member]
Disclosure of detailed information about business combination [line items]
Number of shares per one share issued | shares	0.1176
Number of instruments or interests issued or issuable | shares	5,499,999
Shares issued upon exercise of warrants (in shares) | shares	127,778
NPTI September Closing [Member] | Warrant [Member]
Disclosure of detailed information about business combination [line items]
Exercise price (in USD per warrant) | $ / shares	$ 0.10
NPTI September Closing [Member] | LR1 [Member]
Disclosure of detailed information about business combination [line items]
Number of vessels acquired | vessel	8
NPTI September Closing [Member] | LR2 [Member]
Disclosure of detailed information about business combination [line items]
Number of vessels acquired | vessel	15
NPTI September Closing [Member] | Vessels [member]
Disclosure of detailed information about business combination [line items]
Number of vessels acquired | vessel	23
NPTI September Closing [Member] | Vessels [member] | LR1 [Member]
Disclosure of detailed information about business combination [line items]
Number of vessels acquired | vessel	8
NPTI September Closing [Member] | Vessels [member] | LR2 [Member]
Disclosure of detailed information about business combination [line items]
Number of vessels acquired | vessel	15

Merger with Navig8 Product Ta_4

Merger with Navig8 Product Tankers Inc - Preliminary Purchase Price Allocation (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Jun. 14, 2017
NPTI Vessel Acquisition [Member]
Disclosure of detailed information about business combination [line items]
Cash and cash equivalents			$ 6,180
Restricted cash			0
Accounts receivables			3,330
Prepaid expenses and other assets			2,932
Inventories			299
Restricted cash - non-current			4,000
Vessels, net			158,500
Accounts payable and accrued expenses			(13,720)
Debt (current and non-current)			(113,856)
Redeemable Preferred Shares			0
Net assets acquired and liabilities assumed			47,665
Total purchase price consideration			42,248
Provisional (bargain purchase) / goodwill			$ (5,417)
NPTI September Closing [Member]
Disclosure of detailed information about business combination [line items]
Cash and cash equivalents	$ 15,149	$ 15,149
Restricted cash	13,641	13,641
Accounts receivables	16,455	16,323
Prepaid expenses and other assets	19,940	19,940
Inventories	1,415	1,415
Restricted cash - non-current	6,380	6,380
Vessels, net	972,750	972,750
Accounts payable and accrued expenses	(3,155)	(2,966)
Debt (current and non-current)	(793,519)	(793,519)
Redeemable Preferred Shares	(39,495)	(39,495)
Net assets acquired and liabilities assumed	209,561	209,618
Total purchase price consideration	221,100	221,100
Provisional (bargain purchase) / goodwill	11,539	$ 11,482
Measurement period adjustments, accounts receivables	132
Measurement period adjustments, accounts payable and accrued expenses	(189)
Measurement period adjustments	(57)
Measurement period adjustments, provisional (bargain purchase) / goodwill	$ 57

Cash and Cash Equivalents (Deta

Cash and Cash Equivalents (Details) - USD ($) $ in Thousands	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Subclassifications of assets, liabilities and equities [abstract]
Cash at banks	$ 592,498	$ 185,377
Cash on vessels	1,154	1,085
Total cash	$ 593,652	$ 186,462	$ 99,887	$ 200,970

Prepaid expenses and other as_3

Prepaid expenses and other assets (Details) - USD ($) $ in Thousands	Dec. 31, 2018	Dec. 31, 2017
Disclosure of transactions between related parties [line items]
Prepaid insurance - related party	$ 0	$ 2,428
Prepaid expenses from related parties	2,461	8,819
Prepaid interest	6,870	1,153
Prepaid insurance	4,449	1,001
Third party - prepaid vessel operating expenses	712	1,255
Other prepaid expenses	1,179	5,492
Current prepayments and other current assets	15,671	17,720
SSM [Member] | Other related parties [member]
Disclosure of transactions between related parties [line items]
SSM - prepaid vessel operating expenses	$ 2,461	$ 6,391

Accounts receivable - Summary o

Accounts receivable - Summary of Accounts Receivable (Details) - USD ($) $ in Thousands	Sep. 01, 2018	Dec. 31, 2018	Dec. 31, 2017
Disclosure of transactions between related parties [line items]
Insurance receivables		$ 204	$ 870
Freight and time charter receivables		22	2,399
Other receivables		786	2,684
Accounts receivable		69,718	65,458
Navig8 Group Pools [Member]
Disclosure of transactions between related parties [line items]
Freight and time charter receivables		17	14,625
Other related parties [member]
Disclosure of transactions between related parties [line items]
Related party receivables		68,689	44,880
Other related parties [member] | Scorpio MR Pool Limited [Member]
Disclosure of transactions between related parties [line items]
Related party receivables		33,288	27,720
Other related parties [member] | Scorpio LR2 Pool Limited [Member]
Disclosure of transactions between related parties [line items]
Related party receivables		24,563	7,026
Other related parties [member] | Scorpio Handymax Tanker Pool Limited [Member]
Disclosure of transactions between related parties [line items]
Related party receivables		4,559	6,037
Other related parties [member] | Scorpio LR1 Pool Limited [Member]
Disclosure of transactions between related parties [line items]
Related party receivables		3,705	3,002
Other related parties [member] | Scorpio Aframax Pool Limited [Member]
Disclosure of transactions between related parties [line items]
Related party receivables		63	1,095
Other related parties [member] | Scorpio Commercial Management SAM (SCM) [Member]
Disclosure of transactions between related parties [line items]
Related party receivables		$ 2,511	$ 0
Commission on gross revenue, per charter fixture	0.85%

Vessels - Operating vessels and

Vessels - Operating vessels and drydock rollforward (Details) $ in Thousands	12 Months Ended
	Dec. 31, 2018USD ($)	Dec. 31, 2017USD ($)vessel
Reconciliation of changes in property, plant and equipment [abstract]
Property, plant and equipment	$ 4,090,094
Property, plant and equipment	3,997,789	$ 4,090,094
Additions from deliveries of vessels and corresponding drydock | vessel		8
Cost [member]
Reconciliation of changes in property, plant and equipment [abstract]
Property, plant and equipment	4,472,536	$ 3,186,879
Additions	84,418	346,005
Vessels acquired in merger with NPTI		1,131,250
Disposal of vessels		(187,848)
Write-offs	(1,500)	(3,750)
Property, plant and equipment	4,555,454	4,472,536
Accumulated depreciation and impairment [member]
Reconciliation of changes in property, plant and equipment [abstract]
Property, plant and equipment	(382,442)	(273,625)
Charge for the period	(176,723)	(141,418)
Disposal of vessels		28,851
Write-offs	1,500	3,750
Property, plant and equipment	(557,665)	(382,442)
Vessels [member]
Reconciliation of changes in property, plant and equipment [abstract]
Property, plant and equipment	4,041,945
Property, plant and equipment	3,962,659	4,041,945
Vessels [member] | Cost [member]
Reconciliation of changes in property, plant and equipment [abstract]
Property, plant and equipment	4,389,648	3,126,790
Additions	79,454	333,338
Vessels acquired in merger with NPTI		1,113,618
Disposal of vessels		(184,098)
Write-offs	0	0
Property, plant and equipment	4,469,102	4,389,648
Vessels [member] | Accumulated depreciation and impairment [member]
Reconciliation of changes in property, plant and equipment [abstract]
Property, plant and equipment	(347,703)	(246,210)
Charge for the period	(158,740)	(127,369)
Disposal of vessels		25,876
Write-offs	0	0
Property, plant and equipment	(506,443)	(347,703)
Drydock [Member]
Reconciliation of changes in property, plant and equipment [abstract]
Property, plant and equipment	48,149
Property, plant and equipment	35,130	48,149
Drydock [Member] | Cost [member]
Reconciliation of changes in property, plant and equipment [abstract]
Property, plant and equipment	82,888	60,089
Additions	4,964	12,667
Vessels acquired in merger with NPTI		17,632
Disposal of vessels		(3,750)
Write-offs	(1,500)	(3,750)
Property, plant and equipment	86,352	82,888
Drydock [Member] | Accumulated depreciation and impairment [member]
Reconciliation of changes in property, plant and equipment [abstract]
Property, plant and equipment	(34,739)	(27,415)
Charge for the period	(17,983)	(14,049)
Disposal of vessels		2,975
Write-offs	1,500	3,750
Property, plant and equipment	$ (51,222)	$ (34,739)

Vessels - Vessel deliveries (De

Vessels - Vessel deliveries (Details) $ in Millions	1 Months Ended	4 Months Ended	12 Months Ended
	Jul. 31, 2018USD ($)equipment	Nov. 30, 2018USD ($)tanker	Dec. 31, 2018USD ($)vessel	Dec. 31, 2017USD ($)vessel
Disclosure of detailed information about property, plant and equipment [line items]
Increase through delivery of vessels			$ 81	$ 346
Ballast Water Treatment Systems [Member]
Disclosure of detailed information about property, plant and equipment [line items]
Number of equipment | equipment	55
Payments to acquire property, plant, and equipment	$ 36.2
Vessels [member]
Disclosure of detailed information about property, plant and equipment [line items]
Number of vessels		77	109	107
Ships to be installed with scrubbers [Member]
Disclosure of detailed information about property, plant and equipment [line items]
Number of vessels | tanker		77
Exhaust Gas cleaning System [Member]
Disclosure of detailed information about property, plant and equipment [line items]
Payments to acquire property, plant, and equipment		$ 116.1
STI Fontvieille And STI Ville [Member] | Drydock [Member]
Disclosure of detailed information about property, plant and equipment [line items]
Drydock expenses incurred			$ 1.9
Drydocked period for special survey			46 days
STI Duchessa and STI Opera [Member] | Drydock [Member]
Disclosure of detailed information about property, plant and equipment [line items]
Drydock expenses incurred			$ 0.7
Vessels to enter into drydock in 2019 [Member] | Drydock [Member]
Disclosure of detailed information about property, plant and equipment [line items]
Drydock expenses incurred			$ 0.9
STI Amber, STI Topaz, STI Ruby, STI Garnet and STI Onyx [Member] | Drydock [Member]
Disclosure of detailed information about property, plant and equipment [line items]
Drydock expenses incurred				$ 6.4
Drydocked period for special survey				102 days
Number of vessels | vessel				5

Vessels - Vessel sales (Details

Vessels - Vessel sales (Details)	1 Months Ended		4 Months Ended	12 Months Ended
	Jun. 30, 2017USD ($)	Apr. 30, 2017USD ($)vessel	Jul. 31, 2017USD ($)	Dec. 31, 2018USD ($)	Dec. 31, 2017USD ($)vessel	Dec. 31, 2016USD ($)
Disclosure of detailed information about property, plant and equipment [line items]
Loss on sales of vessels, net				$ 0	$ 23,345,000	$ 2,078,000
Proceeds from disposal of vessels				0	127,372,000	158,175,000
Write-off of deferred financing fees				13,212,000	$ 2,467,000	$ 14,479,000
STI Beryl, STI Le Rocher, STI Larvotto [Member]
Disclosure of detailed information about property, plant and equipment [line items]
Sale leaseback transaction, number of vessels | vessel					3
Vessels [member] | STI Beryl, STI Le Rocher, STI Larvotto [Member]
Disclosure of detailed information about property, plant and equipment [line items]
Sale leaseback transaction, number of vessels | vessel		3
Sale leaseback transaction, gross proceeds per vessel		$ 29,000,000
Sale leaseback transaction, term		8 years
Sale leaseback transaction, daily rental payments per vessel		$ 8,800
Sale leaseback transaction, deposit per vessel		$ 4,350,000		4,350,000
Loss on sales of vessels, net				14,200,000
Vessels [member] | STI Emerald and STI Sapphire [Member]
Disclosure of detailed information about property, plant and equipment [line items]
Loss on sales of vessels, net			$ 9,100,000
Number of vessels in agreement to sell | vessel		2
Proceeds from disposal of vessels		$ 56,400,000
2011 Credit Facility [Member] | STI Beryl, STI Le Rocher, STI Larvotto [Member]
Disclosure of detailed information about property, plant and equipment [line items]
Repayments		$ 42,200,000
BNP Paribas Credit Facility [Member]
Disclosure of detailed information about property, plant and equipment [line items]
Repayments				$ 42,600,000
BNP Paribas Credit Facility [Member] | STI Emerald and STI Sapphire [Member]
Disclosure of detailed information about property, plant and equipment [line items]
Repayments	$ 27,600,000
Write-off of deferred financing fees	$ 500,000

Vessels - Collateral agreements

Vessels - Collateral agreements (Details) $ in Millions	Dec. 31, 2018USD ($)
Property, plant and equipment [abstract]
Vessels pledged as collateral	$ 3,997.8

Vessels - Expected future purch

Vessels - Expected future purchase commitment payments (Details) - Ballast Water Treatment Systems and Scrubbers [Member] $ in Thousands	Dec. 31, 2018USD ($)
Disclosure of detailed information about property, plant and equipment [line items]
Contractual commitments for acquisition of property, plant and equipment	$ 131,874
Less than 1 month [member]
Disclosure of detailed information about property, plant and equipment [line items]
Contractual commitments for acquisition of property, plant and equipment	926
1-3 months [member]
Disclosure of detailed information about property, plant and equipment [line items]
Contractual commitments for acquisition of property, plant and equipment	19,481
3 months to 1 year [member]
Disclosure of detailed information about property, plant and equipment [line items]
Contractual commitments for acquisition of property, plant and equipment	93,188
1 - 5 years [member]
Disclosure of detailed information about property, plant and equipment [line items]
Contractual commitments for acquisition of property, plant and equipment	18,279
Later than five years [member]
Disclosure of detailed information about property, plant and equipment [line items]
Contractual commitments for acquisition of property, plant and equipment	$ 0

Vessels - Schedule of Collatera

Vessels - Schedule of Collateral Agreements (Details) - USD ($)	Aug. 31, 2018	Jul. 31, 2018
$116.0 Million Lease Financing [Member]
Disclosure of detailed information about borrowings [line items]
Aggregate principal amount notes issued	$ 116,000,000
$157.5 Million Lease Financing [Member]
Disclosure of detailed information about borrowings [line items]
Aggregate principal amount notes issued		$ 157,500,000

Vessels under construction - Na

Vessels under construction - Narrative (Details) $ in Thousands	Dec. 31, 2017USD ($)	Jan. 31, 2018USD ($)	Dec. 31, 2018USD ($)	Dec. 31, 2017USD ($)	Dec. 31, 2016USD ($)	Dec. 31, 2017vessel	Dec. 31, 2017tanker
Disclosure of detailed information about property, plant and equipment [line items]
Payment to purchase property, plant and equipment			$ 26,057	$ 258,311	$ 126,842
Capitalized interest			$ 200	$ 4,200	$ 6,300
Capitalisation rate of borrowing costs eligible for capitalisation			5.70%	4.70%
Construction in progress [member]
Disclosure of detailed information about property, plant and equipment [line items]
Number of vessels						2	2
Aggregate purchase price	$ 75,800			$ 75,800
Payment to purchase property, plant and equipment				52,300
Capitalized interest			$ 157	$ 4,194
STI Esles II [Member] | Construction in progress [member]
Disclosure of detailed information about property, plant and equipment [line items]
Payment to purchase property, plant and equipment	$ 23,500
STI Jardins [Member] | Construction in progress [member]
Disclosure of detailed information about property, plant and equipment [line items]
Payment to purchase property, plant and equipment		$ 23,500
MR [Member] | Construction in progress [member]
Disclosure of detailed information about property, plant and equipment [line items]
Number of vessels | vessel						2

Vessels under construction - Co

Vessels under construction - Construction in Progress Rollforward (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Disclosure of detailed information about property, plant and equipment [line items]
Construction in progress balance, beginning period	$ 55,376
Capitalized interest	200	$ 4,200	$ 6,300
Construction in progress balance, period end	0	55,376
Construction in progress [member]
Disclosure of detailed information about property, plant and equipment [line items]
Construction in progress balance, beginning period	55,376	137,917
Installment payments and other capitalized expenses	25,452	252,977
Capitalized interest	157	4,194
Transferred to operating vessels and drydock	(80,985)	(339,712)
Construction in progress balance, period end	$ 0	$ 55,376	$ 137,917

Carrying values of vessels, v_2

Carrying values of vessels, vessels under construction and goodwill (Details)	12 Months Ended
	Dec. 31, 2018USD ($)vessel	Dec. 31, 2017USD ($)vessel	Nov. 30, 2018tanker	Sep. 30, 2018USD ($)	Dec. 31, 2017vessel	Dec. 31, 2017tanker
Disclosure of impairment loss and reversal of impairment loss [line items]
Goodwill | $	$ 11,539,000	$ 11,482,000
Vessels [member]
Disclosure of impairment loss and reversal of impairment loss [line items]
Average time charter rate period used to establish growth rate	3 years
Growth rate in freight rates	2.47%
Discount rate used	8.29%
Number of vessels	109		77		107
Number of vessels with fair value more than carrying value | vessel	34				8
Number of vessels with fair value less than carrying value | vessel	75				99
Impairment loss recognised in profit or loss | $	$ 0	$ 0
Percentage increase in discount rate used in sensitivity analysis	1.00%	1.00%
Impact on impairment loss with 1.0% increase in discount rate | $	$ 300,000	$ 2,300,000
Percentage decrease in forecasted time charter rates used in sensitivity analysis	5.00%	5.00%
Impact on impairment loss with 5% decrease in forecasted time charter rates | $	$ 400,000	$ 6,900,000
Construction in progress [member]
Disclosure of impairment loss and reversal of impairment loss [line items]
Number of vessels					2	2
Impairment loss recognised in profit or loss | $		$ 0
LR2 [Member] | Vessels [member]
Disclosure of impairment loss and reversal of impairment loss [line items]
Number of vessels impaired with increase in discount rate used in sensitivity analysis | vessel	1
Number of vessels impaired with decrease in discount rate used in sensitivity analysis | vessel	2
MR [Member] | Vessels [member]
Disclosure of impairment loss and reversal of impairment loss [line items]
Number of vessels impaired with increase in discount rate used in sensitivity analysis | vessel		4
MR [Member] | Construction in progress [member]
Disclosure of impairment loss and reversal of impairment loss [line items]
Number of vessels | vessel					2
Handymax and MR [Member] | Vessels [member]
Disclosure of impairment loss and reversal of impairment loss [line items]
Number of vessels impaired with decrease in discount rate used in sensitivity analysis | vessel		13
NPTI September Closing [Member] | LR2 [Member]
Disclosure of impairment loss and reversal of impairment loss [line items]
Goodwill | $				$ 8,900,000
NPTI September Closing [Member] | LR1 [Member]
Disclosure of impairment loss and reversal of impairment loss [line items]
Goodwill | $				$ 2,600,000

Other non-current assets (Detai

Other non-current assets (Details) $ in Thousands	1 Months Ended	4 Months Ended	12 Months Ended
	Jul. 31, 2018USD ($)equipment	Nov. 30, 2018USD ($)tanker	Dec. 31, 2018USD ($)vessel	Dec. 31, 2017USD ($)vessel	Apr. 30, 2017USD ($)
Disclosure Of Other Non-Current Assets [Line Items]
Sellers credit on lease financed vessels			$ 9,087	$ 8,581
Capitalized loan fees			0	582
Deferred drydock costs on bareboat chartered-in vessels (6)			2,813	120
Other non-current assets			$ 75,210	50,684
Scorpio Handymax Tanker Pool Limited [Member]
Disclosure Of Other Non-Current Assets [Line Items]
Working capital repayment period upon vessel's exit from each pool			6 months
Other related parties [member] | Scorpio LR2 Pool Limited [Member]
Disclosure Of Other Non-Current Assets [Line Items]
Non-current receivables due from related parties			$ 31,450	28,050
Other related parties [member] | Scorpio Handymax Tanker Pool Limited [Member]
Disclosure Of Other Non-Current Assets [Line Items]
Non-current receivables due from related parties			$ 4,923	6,751
Working capital repayment period upon vessel's exit from each pool			6 months
Other related parties [member] | Scorpio LR1 Pool Limited [Member]
Disclosure Of Other Non-Current Assets [Line Items]
Non-current receivables due from related parties			$ 6,600	6,600
Other related parties [member] | Scorpio Group Pools [Member]
Disclosure Of Other Non-Current Assets [Line Items]
Non-current receivables due from related parties			42,973	41,401
Exhaust Gas cleaning System [Member]
Disclosure Of Other Non-Current Assets [Line Items]
Deposits on property, plant and equipment			$ 12,221	$ 0
Payments to acquire property, plant, and equipment		$ 116,100
Vessels [member]
Disclosure Of Other Non-Current Assets [Line Items]
Number of tankers		77	109	107
Ballast Water Treatment Systems [Member]
Disclosure Of Other Non-Current Assets [Line Items]
Deposits on property, plant and equipment			$ 6,365	$ 0
Payments to acquire property, plant, and equipment	$ 36,200
Number of equipment | equipment	55
Installation period of property, plant and equipment	5 years
Deposits for purchase of property, plant, and equipment and minority interest			8,100
Aggregate difference in investment fair value between put and call option exercise prices			600
STI Beryl, STI Le Rocher, STI Larvotto [Member] | Vessels [member]
Disclosure Of Other Non-Current Assets [Line Items]
Sale leaseback transaction, deposit per vessel			4,350		$ 4,350
Sale leaseback transaction, aggregate amount			13,100
Interest income on deposits			500	300
Third Party Supplier [Member]
Disclosure Of Other Non-Current Assets [Line Items]
Cash flows used in obtaining control of subsidiaries or other businesses, classified as investing activities	$ 1,800		$ 1,800
Period after investment acquired for which put option is exercisable			1 year
Period after investment acquired for which call option is exercisable			2 years
Third Party Supplier [Member] | Ballast Water Treatment Systems [Member]
Disclosure Of Other Non-Current Assets [Line Items]
Investment in ballast water treatment system supplier			$ 1,751	$ 0

Accounts payable (Details)

Accounts payable (Details) - USD ($) $ in Thousands	Dec. 31, 2018	Dec. 31, 2017
Disclosure of transactions between related parties [line items]
Suppliers	$ 10,395	$ 9,218
Accounts payable	11,865	13,044
Other related parties [member]
Disclosure of transactions between related parties [line items]
Related party payables	1,470	3,826
Other related parties [member] | SSM [Member]
Disclosure of transactions between related parties [line items]
Related party payables	545	766
Other related parties [member] | Scorpio Services Holding Limited (SSH) [Member]
Disclosure of transactions between related parties [line items]
Related party payables	409	190
Other related parties [member] | Scorpio Commercial Management SAM (SCM) [Member]
Disclosure of transactions between related parties [line items]
Related party payables	389	186
Other related parties [member] | Port Agent [Member]
Disclosure of transactions between related parties [line items]
Related party payables	62	60
Other related parties [member] | Scorpio LR1 Pool Limited [Member]
Disclosure of transactions between related parties [line items]
Related party payables	51	22
Other related parties [member] | Scorpio Handymax Tanker Pool Limited [Member]
Disclosure of transactions between related parties [line items]
Related party payables	12	0
Other related parties [member] | Scorpio LR2 Pool Limited [Member]
Disclosure of transactions between related parties [line items]
Related party payables	2	365
Other related parties [member] | Insurance Broker [Member]
Disclosure of transactions between related parties [line items]
Related party payables	0	2,163
Other related parties [member] | Scorpio Aframax Pool Limited [Member]
Disclosure of transactions between related parties [line items]
Related party payables	$ 0	$ 74

Accrued expenses (Details)

Accrued expenses (Details) - USD ($) $ in Thousands	Dec. 31, 2018	Dec. 31, 2017
Disclosure of transactions between related parties [line items]
Suppliers	$ 9,147	$ 16,533
Accrued interest	9,202	13,078
Accrued short-term employee benefits	2,430	2,325
Accrued transaction costs relating to the Merger	0	34
Other accrued expenses	1,508	802
Accrued expenses	22,972	32,838
Other related parties [member]
Disclosure of transactions between related parties [line items]
Related party expenses	685	66
Other related parties [member] | Port Agent [Member]
Disclosure of transactions between related parties [line items]
Related party expenses	398	35
Other related parties [member] | SSM [Member]
Disclosure of transactions between related parties [line items]
Related party expenses	287	0
Other related parties [member] | Insurance Broker [Member]
Disclosure of transactions between related parties [line items]
Related party expenses	0	26
Other related parties [member] | Scorpio Commercial Management SAM (SCM) [Member]
Disclosure of transactions between related parties [line items]
Related party expenses	$ 0	$ 5

Current and long-term debt - Sc

Current and long-term debt - Schedule of current and non-current portion of debt (Details) - USD ($) $ in Thousands	Dec. 31, 2018	Dec. 31, 2017
Disclosure of detailed information about borrowings [line items]
Current portion of long-term debt	$ 297,934	$ 113,036
Finance lease	114,429	50,146
Current portion of long-term debt	412,363	163,182
Non-current portion	1,192,000	1,937,018
Finance lease liability	1,305,952	666,993
Total debt outstanding	2,910,315	2,767,193
Deferred financing fees [Member]
Disclosure of detailed information about borrowings [line items]
Current portion of long-term debt	(2,100)	(1,700)
Finance lease	(800)	(100)
Current portion of long-term debt	(2,882)
Non-current portion	(20,657)
Total debt outstanding	(23,539)	(36,247)
Borrowings Excluding Finance Leases [Member] | Deferred financing fees [Member]
Disclosure of detailed information about borrowings [line items]
Non-current portion	(12,000)	(33,400)
Finance Lease [Member] | Deferred financing fees [Member]
Disclosure of detailed information about borrowings [line items]
Finance lease liability	(8,700)	(1,100)
Total debt outstanding	$ 9,500	$ 1,200

Current and long-term debt - _2

Current and long-term debt - Schedule of debt rollforward by facility (Details) - USD ($)	Jun. 09, 2014	Oct. 31, 2018	Sep. 30, 2018	Aug. 31, 2018	Jun. 30, 2018	Sep. 30, 2017	Apr. 30, 2017	Mar. 31, 2017	Feb. 28, 2017	May 31, 2016	Mar. 31, 2016	Jun. 30, 2014	Jun. 09, 2014	Sep. 30, 2018	Jul. 31, 2018	Dec. 31, 2018	Dec. 31, 2017	May 31, 2018	May 12, 2014
Reconciliation Of Changes In Borrowings [Roll Forward]
Carrying Value as of December 31, 2017																$ 2,767,193,000
Carrying Value as of December 31, 2018																2,910,315,000	$ 2,767,193,000
Current portion of long-term debt																412,363,000	163,182,000
Long-term debt																1,192,000,000	1,937,018,000
K-Sure Credit Facility [Member]
Reconciliation Of Changes In Borrowings [Roll Forward]
Carrying Value as of December 31, 2017																239,919,000
Repayments														$ (13,000,000)		(239,900,000)
Carrying Value as of December 31, 2018																	239,919,000
KEXIM Credit Facility [Member]
Reconciliation Of Changes In Borrowings [Roll Forward]
Carrying Value as of December 31, 2017																333,000,000
Carrying Value as of December 31, 2018																299,300,000	333,000,000
Credit Suisse Credit Facility [Member]
Reconciliation Of Changes In Borrowings [Roll Forward]
Repayments				$ (26,500,000)										(26,100,000)		(53,500,000)
ABN AMRO Credit Facility [Member]
Reconciliation Of Changes In Borrowings [Roll Forward]
Carrying Value as of December 31, 2017																113,300,000
Repayments																(8,800,000)
Carrying Value as of December 31, 2018																100,500,000	113,300,000
ING Credit Facility [Member]
Reconciliation Of Changes In Borrowings [Roll Forward]
Carrying Value as of December 31, 2017																109,800,000
Carrying Value as of December 31, 2018																144,200,000	109,800,000
BNP Paribas Credit Facility [Member]
Reconciliation Of Changes In Borrowings [Roll Forward]
Repayments																(42,600,000)
Scotiabank Credit Facility [Member]
Reconciliation Of Changes In Borrowings [Roll Forward]
Repayments														(28,300,000)
NIBC Credit Facility [Member]
Reconciliation Of Changes In Borrowings [Roll Forward]
Repayments														(32,700,000)		(34,700,000)
2018 NIBC Credit Facility [Member]
Reconciliation Of Changes In Borrowings [Roll Forward]
Carrying Value as of December 31, 2018																34,900,000
2016 Credit Facility [Member]
Reconciliation Of Changes In Borrowings [Roll Forward]
Repayments		$ (59,200,000)	$ (30,000,000)	(92,700,000)												(196,000,000)
2017 Credit Facility [Member]
Reconciliation Of Changes In Borrowings [Roll Forward]
Carrying Value as of December 31, 2017																141,800,000
Repayments																(10,500,000)
Carrying Value as of December 31, 2018																144,800,000	141,800,000
HSH Credit Facility [Member]
Reconciliation Of Changes In Borrowings [Roll Forward]
Drawdowns									$ 31,100,000
Repayments			(14,200,000)
DVB 2017 Credit Facility [Member]
Reconciliation Of Changes In Borrowings [Roll Forward]
Repayments		(25,800,000)	(14,800,000)	(33,500,000)												(78,400,000)
Credit Agricole Credit Facility [Member]
Reconciliation Of Changes In Borrowings [Roll Forward]
Carrying Value as of December 31, 2017																103,900,000
Carrying Value as of December 31, 2018																96,200,000	103,900,000
ABN / K-Sure Credit Facility [Member]
Reconciliation Of Changes In Borrowings [Roll Forward]
Carrying Value as of December 31, 2017																49,900,000
Carrying Value as of December 31, 2018																46,800,000	49,900,000
Citibank / K-Sure Credit Facility [Member]
Reconciliation Of Changes In Borrowings [Roll Forward]
Carrying Value as of December 31, 2017																104,100,000
Carrying Value as of December 31, 2018																97,600,000	104,100,000
Ocean Yield Lease Financing [Member]
Reconciliation Of Changes In Borrowings [Roll Forward]
Carrying Value as of December 31, 2017																169,000,000
Carrying Value as of December 31, 2018																158,800,000	169,000,000
CMBFL Lease Financing [Member]
Reconciliation Of Changes In Borrowings [Roll Forward]
Carrying Value as of December 31, 2017																65,900,000
Carrying Value as of December 31, 2018																61,200,000	65,900,000
BCFL Lease Financing (LR2s) [Member]
Reconciliation Of Changes In Borrowings [Roll Forward]
Carrying Value as of December 31, 2017																104,200,000
Carrying Value as of December 31, 2018																97,500,000	104,200,000
CSSC Lease Financing [Member]
Reconciliation Of Changes In Borrowings [Roll Forward]
Carrying Value as of December 31, 2017																270,000,000
Repayments						$ (10,900,000)
Carrying Value as of December 31, 2018																251,800,000	270,000,000
BCFL Lease Financing (MRs) [Member]
Reconciliation Of Changes In Borrowings [Roll Forward]
Carrying Value as of December 31, 2017																109,200,000
Carrying Value as of December 31, 2018																98,800,000	109,200,000
$116.0 Million Lease Financing [Member]
Reconciliation Of Changes In Borrowings [Roll Forward]
Carrying Value as of December 31, 2017			114,800,000
Carrying Value as of December 31, 2018				114,800,000												112,700,000
Aggregate principal amount notes issued				116,000,000
AVIC Lease Financing [Member]
Reconciliation Of Changes In Borrowings [Roll Forward]
Carrying Value as of December 31, 2017				145,000,000										145,000,000
Drawdowns			36,500,000
Carrying Value as of December 31, 2018															$ 145,000,000	139,100,000
China Huarong Lease Financing [Member]
Reconciliation Of Changes In Borrowings [Roll Forward]
Carrying Value as of December 31, 2017					$ 144,000,000
Carrying Value as of December 31, 2018																137,300,000
$157.5 Million Lease Financing [Member]
Reconciliation Of Changes In Borrowings [Roll Forward]
Carrying Value as of December 31, 2017				157,500,000										157,500,000
Carrying Value as of December 31, 2018															157,500,000	152,100,000
Aggregate principal amount notes issued															157,500,000
COSCO Lease Financing [Member]
Reconciliation Of Changes In Borrowings [Roll Forward]
Carrying Value as of December 31, 2017		$ 88,000,000
Carrying Value as of December 31, 2018			$ 88,000,000											88,000,000		84,200,000
Unsecured Senior Notes Due 2020 [Member]
Reconciliation Of Changes In Borrowings [Roll Forward]
Carrying Value as of December 31, 2017																53,750,000
Drawdowns	$ 3,750,000												$ 51,800,000
Carrying Value as of December 31, 2018																53,750,000	53,750,000
Aggregate principal amount notes issued																			$ 50,000,000
Borrowings interest rate																			6.75%
Unsecured Senior Notes Due 2019 [Member]
Reconciliation Of Changes In Borrowings [Roll Forward]
Drawdowns							$ 7,500,000	$ 55,300,000
Carrying Value as of December 31, 2018																57,500,000
Aggregate principal amount notes issued								$ 50,000,000
Borrowings interest rate								8.25%
Convertible Notes due 2019 [Member]
Reconciliation Of Changes In Borrowings [Roll Forward]
Carrying Value as of December 31, 2017				14,500,000	180,400,000									14,500,000		328,700,000
Drawdowns												$ 349,000,000
Repayments										$ (4,200,000)	$ (4,200,000)				(203,500,000)
Carrying Value as of December 31, 2018												298,700,000			14,500,000	142,200,000	328,700,000
Aggregate principal amount notes issued												$ 360,000,000			15,000,000			$ 188,500,000
Borrowings outstanding before debt exchange															348,500,000
Borrowings interest rate												2.375%
Convertible Notes due 2022 [Member]
Reconciliation Of Changes In Borrowings [Roll Forward]
Carrying Value as of December 31, 2017				$ 12,200,000	$ 154,300,000									$ 12,200,000
Drawdowns															203,500,000
Carrying Value as of December 31, 2018															12,200,000	$ 171,500,000
Aggregate principal amount notes issued															$ 15,000,000			$ 188,500,000
Borrowings interest rate																3.00%
Gross carrying amount [member]
Reconciliation Of Changes In Borrowings [Roll Forward]
Carrying Value as of December 31, 2017																$ 2,803,440,000
Drawdowns																1,007,298,000
Repayments																(865,594,000)
Other Activity																(11,290,000)
Carrying Value as of December 31, 2018																2,933,854,000	2,803,440,000
Current portion of long-term debt																415,245,000
Long-term debt																2,518,609,000
Gross carrying amount [member] | K-Sure Credit Facility [Member]
Reconciliation Of Changes In Borrowings [Roll Forward]
Drawdowns																0
Repayments																(239,919,000)
Other Activity																0
Carrying Value as of December 31, 2018																0
Current portion of long-term debt																0
Long-term debt																0
Gross carrying amount [member] | KEXIM Credit Facility [Member]
Reconciliation Of Changes In Borrowings [Roll Forward]
Carrying Value as of December 31, 2017																332,950,000
Drawdowns																0
Repayments																(33,650,000)
Other Activity																0
Carrying Value as of December 31, 2018																299,300,000	332,950,000
Current portion of long-term debt																33,650,000
Long-term debt																265,650,000
Gross carrying amount [member] | Credit Suisse Credit Facility [Member]
Reconciliation Of Changes In Borrowings [Roll Forward]
Carrying Value as of December 31, 2017																53,488,000
Drawdowns																0
Repayments																(53,488,000)
Other Activity																0
Carrying Value as of December 31, 2018																0	53,488,000
Current portion of long-term debt																0
Long-term debt																0
Gross carrying amount [member] | ABN AMRO Credit Facility [Member]
Reconciliation Of Changes In Borrowings [Roll Forward]
Carrying Value as of December 31, 2017																113,312,000
Drawdowns																0
Repayments																(12,804,000)
Other Activity																0
Carrying Value as of December 31, 2018																100,508,000	113,312,000
Current portion of long-term debt																8,554,000
Long-term debt																91,954,000
Gross carrying amount [member] | ING Credit Facility [Member]
Reconciliation Of Changes In Borrowings [Roll Forward]
Carrying Value as of December 31, 2017																109,844,000
Drawdowns																38,675,000
Repayments																(4,343,000)
Other Activity																0
Carrying Value as of December 31, 2018																144,176,000	109,844,000
Current portion of long-term debt																12,737,000
Long-term debt																131,439,000
Gross carrying amount [member] | BNP Paribas Credit Facility [Member]
Reconciliation Of Changes In Borrowings [Roll Forward]
Carrying Value as of December 31, 2017																42,550,000
Drawdowns																0
Repayments																(42,550,000)
Other Activity																0
Carrying Value as of December 31, 2018																0	42,550,000
Current portion of long-term debt																0
Long-term debt																0
Gross carrying amount [member] | Scotiabank Credit Facility [Member]
Reconciliation Of Changes In Borrowings [Roll Forward]
Carrying Value as of December 31, 2017																28,860,000
Drawdowns																0
Repayments																(28,860,000)
Other Activity																0
Carrying Value as of December 31, 2018																0	28,860,000
Current portion of long-term debt																0
Long-term debt																0
Gross carrying amount [member] | NIBC Credit Facility [Member]
Reconciliation Of Changes In Borrowings [Roll Forward]
Carrying Value as of December 31, 2017																34,712,000
Drawdowns																0
Repayments																(34,712,000)
Other Activity																0
Carrying Value as of December 31, 2018																0	34,712,000
Current portion of long-term debt																0
Long-term debt																0
Gross carrying amount [member] | 2018 NIBC Credit Facility [Member]
Reconciliation Of Changes In Borrowings [Roll Forward]
Carrying Value as of December 31, 2017																0
Drawdowns																35,658,000
Repayments																(807,000)
Other Activity																0
Carrying Value as of December 31, 2018																34,851,000	0
Current portion of long-term debt																3,230,000
Long-term debt																31,621,000
Gross carrying amount [member] | 2016 Credit Facility [Member]
Reconciliation Of Changes In Borrowings [Roll Forward]
Carrying Value as of December 31, 2017																195,979,000
Drawdowns																0
Repayments																(195,979,000)
Other Activity																0
Carrying Value as of December 31, 2018																0	195,979,000
Current portion of long-term debt																0
Long-term debt																0
Gross carrying amount [member] | 2017 Credit Facility [Member]
Reconciliation Of Changes In Borrowings [Roll Forward]
Carrying Value as of December 31, 2017																141,814,000
Drawdowns																21,450,000
Repayments																(18,499,000)
Other Activity																0
Carrying Value as of December 31, 2018																144,765,000	141,814,000
Current portion of long-term debt																13,265,000
Long-term debt																131,500,000
Gross carrying amount [member] | HSH Credit Facility [Member]
Reconciliation Of Changes In Borrowings [Roll Forward]
Carrying Value as of December 31, 2017																15,416,000
Drawdowns																0
Repayments																(15,416,000)
Other Activity																0
Carrying Value as of December 31, 2018																0	15,416,000
Current portion of long-term debt																0
Long-term debt																0
Gross carrying amount [member] | DVB 2017 Credit Facility [Member]
Reconciliation Of Changes In Borrowings [Roll Forward]
Carrying Value as of December 31, 2017																78,440,000
Drawdowns																0
Repayments																(78,440,000)
Other Activity																0
Carrying Value as of December 31, 2018																0	78,440,000
Current portion of long-term debt																0
Long-term debt																0
Gross carrying amount [member] | Credit Agricole Credit Facility [Member]
Reconciliation Of Changes In Borrowings [Roll Forward]
Carrying Value as of December 31, 2017																103,914,000
Drawdowns																0
Repayments																(8,568,000)
Other Activity																865,000
Carrying Value as of December 31, 2018																96,211,000	103,914,000
Current portion of long-term debt																7,745,000
Long-term debt																88,466,000
Gross carrying amount [member] | ABN / K-Sure Credit Facility [Member]
Reconciliation Of Changes In Borrowings [Roll Forward]
Carrying Value as of December 31, 2017																49,908,000
Drawdowns																0
Repayments																(3,851,000)
Other Activity																775,000
Carrying Value as of December 31, 2018																46,832,000	49,908,000
Current portion of long-term debt																3,106,000
Long-term debt																43,726,000
Gross carrying amount [member] | Citibank / K-Sure Credit Facility [Member]
Reconciliation Of Changes In Borrowings [Roll Forward]
Carrying Value as of December 31, 2017																104,052,000
Drawdowns																0
Repayments																(8,416,000)
Other Activity																1,973,000
Carrying Value as of December 31, 2018																97,609,000	104,052,000
Current portion of long-term debt																6,524,000
Long-term debt																91,085,000
Gross carrying amount [member] | ABN / SEB Credit Facility [Member]
Reconciliation Of Changes In Borrowings [Roll Forward]
Carrying Value as of December 31, 2017																0
Drawdowns																120,575,000
Repayments																(5,750,000)
Other Activity																0
Carrying Value as of December 31, 2018																114,825,000	0
Current portion of long-term debt																11,500,000
Long-term debt																103,325,000
Gross carrying amount [member] | Ocean Yield Lease Financing [Member]
Reconciliation Of Changes In Borrowings [Roll Forward]
Carrying Value as of December 31, 2017																169,016,000
Drawdowns																0
Repayments																(10,458,000)
Other Activity																199,000
Carrying Value as of December 31, 2018																158,757,000	169,016,000
Current portion of long-term debt																10,515,000
Long-term debt																148,242,000
Gross carrying amount [member] | CMBFL Lease Financing [Member]
Reconciliation Of Changes In Borrowings [Roll Forward]
Carrying Value as of December 31, 2017																65,915,000
Drawdowns																0
Repayments																(4,908,000)
Other Activity																191,000
Carrying Value as of December 31, 2018																61,198,000	65,915,000
Current portion of long-term debt																4,725,000
Long-term debt																56,473,000
Gross carrying amount [member] | BCFL Lease Financing (LR2s) [Member]
Reconciliation Of Changes In Borrowings [Roll Forward]
Carrying Value as of December 31, 2017																104,187,000
Drawdowns																0
Repayments																(7,332,000)
Other Activity																599,000
Carrying Value as of December 31, 2018																97,454,000	104,187,000
Current portion of long-term debt																7,005,000
Long-term debt																90,449,000
Gross carrying amount [member] | CSSC Lease Financing [Member]
Reconciliation Of Changes In Borrowings [Roll Forward]
Carrying Value as of December 31, 2017																269,965,000
Drawdowns																0
Repayments																(17,309,000)
Other Activity																(824,000)
Carrying Value as of December 31, 2018																251,832,000	269,965,000
Current portion of long-term debt																18,104,000
Long-term debt																233,728,000
Gross carrying amount [member] | BCFL Lease Financing (MRs) [Member]
Reconciliation Of Changes In Borrowings [Roll Forward]
Carrying Value as of December 31, 2017																109,232,000
Drawdowns																0
Repayments																(10,401,000)
Other Activity																0
Carrying Value as of December 31, 2018																98,831,000	109,232,000
Current portion of long-term debt																11,021,000
Long-term debt																87,810,000
Gross carrying amount [member] | 2018 CMBFL Lease Financing [Member]
Reconciliation Of Changes In Borrowings [Roll Forward]
Carrying Value as of December 31, 2017																0
Drawdowns																141,600,000
Repayments																(5,057,000)
Other Activity																0
Carrying Value as of December 31, 2018																136,543,000	0
Current portion of long-term debt																10,114,000
Long-term debt																126,429,000
Gross carrying amount [member] | $116.0 Million Lease Financing [Member]
Reconciliation Of Changes In Borrowings [Roll Forward]
Carrying Value as of December 31, 2017																0
Drawdowns																114,840,000
Repayments																(2,166,000)
Other Activity																0
Carrying Value as of December 31, 2018																112,674,000	0
Current portion of long-term debt																6,633,000
Long-term debt																106,041,000
Gross carrying amount [member] | AVIC Lease Financing [Member]
Reconciliation Of Changes In Borrowings [Roll Forward]
Carrying Value as of December 31, 2017																0
Drawdowns																145,000,000
Repayments																(5,897,000)
Other Activity																0
Carrying Value as of December 31, 2018																139,103,000	0
Current portion of long-term debt																11,794,000
Long-term debt																127,309,000
Gross carrying amount [member] | China Huarong Lease Financing [Member]
Reconciliation Of Changes In Borrowings [Roll Forward]
Carrying Value as of December 31, 2017																0
Drawdowns																144,000,000
Repayments																(6,750,000)
Other Activity																0
Carrying Value as of December 31, 2018																137,250,000	0
Current portion of long-term debt																13,500,000
Long-term debt																123,750,000
Gross carrying amount [member] | $157.5 Million Lease Financing [Member]
Reconciliation Of Changes In Borrowings [Roll Forward]
Carrying Value as of December 31, 2017																0
Drawdowns																157,500,000
Repayments																(5,414,000)
Other Activity																0
Carrying Value as of December 31, 2018																152,086,000	0
Current portion of long-term debt																14,143,000
Long-term debt																137,943,000
Gross carrying amount [member] | COSCO Lease Financing [Member]
Reconciliation Of Changes In Borrowings [Roll Forward]
Carrying Value as of December 31, 2017																0
Drawdowns																88,000,000
Repayments																(3,850,000)
Other Activity																0
Carrying Value as of December 31, 2018																84,150,000	0
Current portion of long-term debt																7,700,000
Long-term debt																76,450,000
Gross carrying amount [member] | Unsecured Senior Notes Due 2020 [Member]
Reconciliation Of Changes In Borrowings [Roll Forward]
Carrying Value as of December 31, 2017																53,750,000
Drawdowns																0
Repayments																0
Other Activity																0
Carrying Value as of December 31, 2018																53,750,000	53,750,000
Current portion of long-term debt																0
Long-term debt																53,750,000
Gross carrying amount [member] | Unsecured Senior Notes Due 2019 [Member]
Reconciliation Of Changes In Borrowings [Roll Forward]
Carrying Value as of December 31, 2017																57,500,000
Drawdowns																0
Repayments																0
Other Activity																0
Carrying Value as of December 31, 2018																57,500,000	57,500,000
Current portion of long-term debt																57,500,000
Long-term debt																0
Gross carrying amount [member] | Convertible Notes due 2019 [Member]
Reconciliation Of Changes In Borrowings [Roll Forward]
Carrying Value as of December 31, 2017																328,717,000
Drawdowns																0
Repayments																0
Other Activity																(186,537,000)
Carrying Value as of December 31, 2018																142,180,000	328,717,000
Current portion of long-term debt																142,180,000
Long-term debt																0
Gross carrying amount [member] | Convertible Notes due 2022 [Member]
Reconciliation Of Changes In Borrowings [Roll Forward]
Carrying Value as of December 31, 2017																0
Drawdowns																0
Repayments																0
Other Activity																171,469,000
Carrying Value as of December 31, 2018																171,469,000	0
Current portion of long-term debt																0
Long-term debt																171,469,000
Deferred financing fees [Member]
Reconciliation Of Changes In Borrowings [Roll Forward]
Carrying Value as of December 31, 2017																(36,247,000)
Drawdowns																(13,871,000)
Repayments																0
Other Activity																26,579,000
Carrying Value as of December 31, 2018																(23,539,000)	(36,247,000)
Current portion of long-term debt																(2,882,000)
Long-term debt																(20,657,000)
Deferred financing fees [Member] | Unsecured Senior Notes Due 2020 [Member]
Reconciliation Of Changes In Borrowings [Roll Forward]
Carrying Value as of December 31, 2017																800,000
Carrying Value as of December 31, 2018																500,000	800,000
Deferred financing fees [Member] | Unsecured Senior Notes Due 2019 [Member]
Reconciliation Of Changes In Borrowings [Roll Forward]
Carrying Value as of December 31, 2017																1,500,000
Carrying Value as of December 31, 2018																500,000	1,500,000
Deferred financing fees [Member] | Convertible Notes due 2019 [Member]
Reconciliation Of Changes In Borrowings [Roll Forward]
Carrying Value as of December 31, 2017																2,800,000
Carrying Value as of December 31, 2018																400,000	2,800,000
Net carrying amount [Member]
Reconciliation Of Changes In Borrowings [Roll Forward]
Carrying Value as of December 31, 2017																2,767,193,000
Drawdowns																993,427,000
Repayments																(865,594,000)
Other Activity																15,289,000
Carrying Value as of December 31, 2018																2,910,315,000	$ 2,767,193,000
Current portion of long-term debt																412,363,000
Long-term debt																$ 2,497,952,000

Current and long-term debt - Se

Current and long-term debt - Secured debt (Details)	1 Months Ended	12 Months Ended
	Mar. 31, 2018	Dec. 31, 2018
Secured Debt [Member]
Disclosure of detailed information about borrowings [line items]
EBITDA to interest expense ratio minimum	2.50	1.50

Current and long-term debt - _3

Current and long-term debt - Schedule of minimum threshold for the aggregate fair market value of vessels as a percentage (Details)	1 Months Ended
	Dec. 31, 2018	Sep. 30, 2018	Mar. 31, 2017
KEXIM Credit Facility [Member]
Disclosure of detailed information about borrowings [line items]
Minimum ratio for fair value of vessels	155.00%	155.00%
2017 Credit Facility [Member]
Disclosure of detailed information about borrowings [line items]
Minimum ratio for fair value of vessels		155.00%	155.00%
Borrowings, Financial Covenants, Period One [Member] | ABN AMRO Credit Facility [Member]
Disclosure of detailed information about borrowings [line items]
Minimum ratio for fair value of vessels	145.00%
Borrowings, Financial Covenants, Period One [Member] | Vessels [member] | ABN AMRO Credit Facility [Member]
Disclosure of detailed information about borrowings [line items]
Minimum ratio for fair value of vessels		145.00%
Borrowings, Financial Covenants, Period Two [Member] | ABN AMRO Credit Facility [Member]
Disclosure of detailed information about borrowings [line items]
Minimum ratio for fair value of vessels	150.00%
Borrowings, Financial Covenants, Period Two [Member] | Vessels [member] | ABN AMRO Credit Facility [Member]
Disclosure of detailed information about borrowings [line items]
Minimum ratio for fair value of vessels		150.00%

Current and long-term debt - K-

Current and long-term debt - K-sure credit facility (Details) - USD ($)	2 Months Ended	12 Months Ended
	Sep. 30, 2018	Dec. 31, 2018	Dec. 31, 2017	Feb. 28, 2014
Disclosure of detailed information about borrowings [line items]
Debt outstanding		$ 2,910,315,000	$ 2,767,193,000
K-Sure Credit Facility [Member]
Disclosure of detailed information about borrowings [line items]
Loan maximum borrowing capacity				$ 458,300,000
Debt outstanding			$ 239,919,000
Repayments	$ 13,000,000	239,900,000
Write-offs of deferred financing fees related to repayment of debt		$ 5,900,000
K-Sure Credit Facility- K-Sure Tranche [Member]
Disclosure of detailed information about borrowings [line items]
Loan maximum borrowing capacity				$ 358,300,000
Percentage of borrowings covered				95.00%
K-Sure Credit Facility- Commercial Tranche [Member]
Disclosure of detailed information about borrowings [line items]
Loan maximum borrowing capacity				$ 100,000,000

Current and long-term debt - KE

Current and long-term debt - KEXIM credit facility (Details)	Jul. 18, 2014USD ($)	Dec. 31, 2018USD ($)	Sep. 30, 2018	Feb. 28, 2014USD ($)repayment_installment	Dec. 31, 2017USD ($)	Dec. 31, 2014vessel
Disclosure of detailed information about borrowings [line items]
Debt outstanding		$ 2,910,315,000			$ 2,767,193,000
KEXIM Credit Facility [Member]
Disclosure of detailed information about borrowings [line items]
Loan maximum borrowing capacity				$ 429,600,000
Number of consecutive semi-annual repayments installments | repayment_installment				10
Net debt to capitalization ratio				0.60
Consolidated tangible net worth				$ 1,000,000,000
Cumulative positive net income				25.00%
Net proceeds of equity issuance				50.00%
Minimum ratio for fair value of vessels		155.00%	155.00%
Debt outstanding		$ 299,300,000			$ 333,000,000
KEXIM Credit Facility- KEXIM Tranche [Member]
Disclosure of detailed information about borrowings [line items]
Loan maximum borrowing capacity				$ 300,600,000
Reduced funding obligation percent	1.55%
Periodic payment percent	100.00%
Maturity term after delivery date				12 years
Borrowings instrument term				12 years
KEXIM Credit Facility- Commercial Tranche [Member]
Disclosure of detailed information about borrowings [line items]
Loan maximum borrowing capacity				$ 129,000,000
Maturity term after delivery date				6 years
Borrowings instrument term				15 years
Floating Rate Guaranteed Notes Due 2019 Member - KEXIM Tranche [Member]
Disclosure of detailed information about borrowings [line items]
Loan maximum borrowing capacity	$ 125,250,000
Optional guarantee, term	5 years
Construction in progress [member] | Newbuilding Program [Member] | KEXIM Credit Facility [Member]
Disclosure of detailed information about borrowings [line items]
Number of vessels purchased and delivered | vessel						18
Consolidated Liquidity Requirement - Scenario One [Member] | KEXIM Credit Facility [Member]
Disclosure of detailed information about borrowings [line items]
Covenant liquidity requirement amount				$ 25,000,000
Consolidated Liquidity Requirement - Scenario Two [Member] | KEXIM Credit Facility [Member]
Disclosure of detailed information about borrowings [line items]
Consolidated liquidity requirement per each owned vessel				500,000
Consolidated liquidity requirement per each chartered-in vessel				$ 250,000
London Interbank Offered Rate (LIBOR) [Member] | KEXIM Credit Facility- KEXIM Tranche [Member]
Disclosure of detailed information about borrowings [line items]
Adjustment to interest rate basis				3.25%
London Interbank Offered Rate (LIBOR) [Member] | Later than one year and not later than five years [member] | KEXIM Credit Facility- Commercial Tranche [Member]
Disclosure of detailed information about borrowings [line items]
Adjustment to interest rate basis				3.25%
London Interbank Offered Rate (LIBOR) [Member] | Later than five years [member] | KEXIM Credit Facility- Commercial Tranche [Member]
Disclosure of detailed information about borrowings [line items]
Adjustment to interest rate basis				3.75%

Current and long-term debt - Cr

Current and long-term debt - Credit suisse credit facility (Details) - Credit Suisse Credit Facility [Member] - USD ($)	1 Months Ended	2 Months Ended	12 Months Ended
	Aug. 31, 2018	Sep. 30, 2018	Dec. 31, 2018	Oct. 31, 2015
Disclosure of detailed information about borrowings [line items]
Loan maximum borrowing capacity				$ 58,400,000
Repayments	$ 26,500,000	$ 26,100,000	$ 53,500,000
Write-offs of deferred financing fees related to repayment of debt			$ 1,500,000

Current and long-term debt - AB

Current and long-term debt - ABN AMRO credit facility (Details) - USD ($)	1 Months Ended		12 Months Ended
	Dec. 31, 2018	Jul. 31, 2015	Dec. 31, 2018	Dec. 31, 2017
Disclosure of detailed information about borrowings [line items]
Debt outstanding	$ 2,910,315,000		$ 2,910,315,000	$ 2,767,193,000
ABN AMRO Credit Facility [Member]
Disclosure of detailed information about borrowings [line items]
Loan maximum borrowing capacity		$ 142,200,000
Borrowings instrument term		15 years
Maturity term after delivery date		5 years
Borrowings first installment period		3 months
Net debt to capitalization ratio		0.60
Consolidated tangible net worth		$ 677,300,000
Cumulative positive net income		25.00%
Net proceeds of equity issuance		50.00%
Repayments			8,800,000
Unscheduled repayment of borrowings			4,000,000
Debt outstanding	$ 100,500,000		$ 100,500,000	$ 113,300,000
Consolidated Liquidity Requirement - Scenario One [Member] | ABN AMRO Credit Facility [Member]
Disclosure of detailed information about borrowings [line items]
Covenant liquidity requirement amount		$ 25,000,000
Consolidated Liquidity Requirement - Scenario Two [Member] | ABN AMRO Credit Facility [Member]
Disclosure of detailed information about borrowings [line items]
Consolidated liquidity requirement per each owned vessel		$ 500,000
London Interbank Offered Rate (LIBOR) [Member] | ABN AMRO Credit Facility [Member]
Disclosure of detailed information about borrowings [line items]
Adjustment to interest rate basis		2.15%
Borrowings, Financial Covenants, Period One [Member] | ABN AMRO Credit Facility [Member]
Disclosure of detailed information about borrowings [line items]
Minimum ratio for fair value of vessels	145.00%
Borrowings, Financial Covenants, Period Two [Member] | ABN AMRO Credit Facility [Member]
Disclosure of detailed information about borrowings [line items]
Minimum ratio for fair value of vessels	150.00%

Current and long-term debt - IN

Current and long-term debt - ING credit facility (Details) - USD ($)	1 Months Ended
	Jun. 30, 2015	Dec. 31, 2018	Jun. 30, 2018	Dec. 31, 2017	Mar. 31, 2016	Sep. 30, 2015
Disclosure of detailed information about borrowings [line items]
Debt outstanding		$ 2,910,315,000		$ 2,767,193,000
ING Credit Facility [Member]
Disclosure of detailed information about borrowings [line items]
Loan maximum borrowing capacity	$ 52,000,000		$ 171,200,000		$ 132,500,000	$ 87,000,000
Debt outstanding	$ 132,500,000	$ 144,200,000		$ 109,800,000
Borrowings instrument term	15 years
Net debt to capitalization ratio	0.60
Consolidated tangible net worth	$ 1,000,000,000
Cumulative positive net income	25.00%
Net proceeds of equity issuance	50.00%
Minimum ratio for fair value of vessels	160.00%
Consolidated Liquidity Requirement - Scenario One [Member] | ING Credit Facility [Member]
Disclosure of detailed information about borrowings [line items]
Covenant liquidity requirement amount	$ 25,000,000
Consolidated Liquidity Requirement - Scenario Two [Member] | ING Credit Facility [Member]
Disclosure of detailed information about borrowings [line items]
Consolidated liquidity requirement per each owned vessel	500,000
Consolidated liquidity requirement per each chartered-in vessel	$ 250,000
STI Lombard, STI Osceola, STI Grace, STI Jermyn, STI Black Hawk and STI Pontiac [Member] | London Interbank Offered Rate (LIBOR) [Member] | ING Credit Facility [Member]
Disclosure of detailed information about borrowings [line items]
Adjustment to interest rate basis	1.95%
STI Rotherhithe and STI Notting Hill [Member] | London Interbank Offered Rate (LIBOR) [Member] | ING Credit Facility [Member]
Disclosure of detailed information about borrowings [line items]
Adjustment to interest rate basis	2.40%
First Eight Installments [Member] | ING Credit Facility [Member]
Disclosure of detailed information about borrowings [line items]
Periodic borrowing payment amount	$ 1,000,000
Remainder of Payments [Member] | ING Credit Facility [Member]
Disclosure of detailed information about borrowings [line items]
Periodic borrowing payment amount	$ 800,000

Current and long-term debt - BN

Current and long-term debt - BNP paribas credit facility (Details) - BNP Paribas Credit Facility [Member] - USD ($)	1 Months Ended		12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2018	Dec. 31, 2015
Disclosure of detailed information about borrowings [line items]
Loan maximum borrowing capacity		$ 62,100,000		$ 34,500,000
Increase (decrease) in notional amount		$ 27,600,000
Repayments			$ 42,600,000
Write-offs of deferred financing fees related to repayment of debt			$ 400,000
STI Soho [Member] | Vessels [member]
Disclosure of detailed information about borrowings [line items]
Increase (decrease) in notional amount	$ 13,200,000

Current and long-term debt - _4

Current and long-term debt - Scotiabank credit facility (Details) - USD ($)	1 Months Ended	12 Months Ended
	Sep. 30, 2018	Dec. 31, 2018	Jul. 31, 2018	Dec. 31, 2017	Jun. 30, 2016
Disclosure of detailed information about borrowings [line items]
Debt outstanding		$ 2,910,315,000		$ 2,767,193,000
Scotiabank Credit Facility [Member]
Disclosure of detailed information about borrowings [line items]
Write-offs of deferred financing fees related to repayment of debt		100,000
AVIC Lease Financing [Member]
Disclosure of detailed information about borrowings [line items]
Debt outstanding		$ 139,100,000	$ 145,000,000
Drawdowns	$ 36,500,000
STI Rose [Member] | Vessels [member] | Scotiabank Credit Facility [Member]
Disclosure of detailed information about borrowings [line items]
Loan maximum borrowing capacity					$ 33,300,000

Current and long-term debt - NI

Current and long-term debt - NIBC credit facility (Details) - NIBC Credit Facility [Member] - USD ($)	2 Months Ended	12 Months Ended
	Sep. 30, 2018	Dec. 31, 2018	Jun. 30, 2016
Disclosure of detailed information about borrowings [line items]
Repayments	$ 32,700,000	$ 34,700,000
Write-offs of deferred financing fees related to repayment of debt		$ 500,000
STI Fontvieille And STI Ville [Member] | Vessels [member]
Disclosure of detailed information about borrowings [line items]
Loan maximum borrowing capacity			$ 40,800,000

Current and long-term debt - 20

Current and long-term debt - 2018 NIBC Credit Facility (Details) - USD ($)	1 Months Ended
	Jun. 30, 2018	Dec. 31, 2018	Dec. 31, 2017
Disclosure of detailed information about borrowings [line items]
Borrowings		$ 2,910,315,000	$ 2,767,193,000
2018 NIBC Credit Facility [Member]
Disclosure of detailed information about borrowings [line items]
Loan maximum borrowing capacity	$ 35,700,000
Periodic borrowing payment amount	$ 800,000
Net debt to capitalization ratio	0.60
Consolidated tangible net worth	$ 1,000,000,000
Cumulative positive net income	25.00%
Net proceeds of equity issuance	50.00%
Borrowings		$ 34,900,000
2018 NIBC Credit Facility [Member] | London Interbank Offered Rate (LIBOR) [Member]
Disclosure of detailed information about borrowings [line items]
Adjustment to interest rate basis	2.50%
Consolidated Liquidity Requirement - Scenario One [Member] | 2018 NIBC Credit Facility [Member]
Disclosure of detailed information about borrowings [line items]
Covenant liquidity requirement amount	$ 25,000,000
Consolidated Liquidity Requirement - Scenario Two [Member] | 2018 NIBC Credit Facility [Member]
Disclosure of detailed information about borrowings [line items]
Consolidated liquidity requirement per each owned vessel	500,000
Consolidated liquidity requirement per each chartered-in vessel	$ 250,000
Borrowings, Financial Covenants, Period One [Member] | Vessels [member] | 2018 NIBC Credit Facility [Member]
Disclosure of detailed information about borrowings [line items]
Minimum ratio for fair value of vessels	130.00%
Borrowings, Financial Covenants, Period Two [Member] | Vessels [member] | 2018 NIBC Credit Facility [Member]
Disclosure of detailed information about borrowings [line items]
Minimum ratio for fair value of vessels	135.00%
Borrowings, Financial Covenants, Period Three [Member] | Vessels [member] | 2018 NIBC Credit Facility [Member]
Disclosure of detailed information about borrowings [line items]
Minimum ratio for fair value of vessels	140.00%

Current and long-term debt - _5

Current and long-term debt - 2016 credit facility (Details)	1 Months Ended				12 Months Ended
	Oct. 31, 2018USD ($)	Sep. 30, 2018USD ($)	Aug. 31, 2018USD ($)	Aug. 31, 2016USD ($)vessel	Dec. 31, 2018USD ($)	Dec. 31, 2017USD ($)
Disclosure of detailed information about borrowings [line items]
Debt outstanding					$ 2,910,315,000	$ 2,767,193,000
2016 Credit Facility [Member]
Disclosure of detailed information about borrowings [line items]
Loan maximum borrowing capacity				$ 288,000,000
Repayments	$ 59,200,000	$ 30,000,000	$ 92,700,000		196,000,000
Write-offs of deferred financing fees related to repayment of debt					$ 2,200,000
2016 Term Loan [Member]
Disclosure of detailed information about borrowings [line items]
Loan maximum borrowing capacity				192,000,000
2016 Revolving Credit Facility [Member]
Disclosure of detailed information about borrowings [line items]
Loan maximum borrowing capacity				$ 96,000,000
MR [Member] | Vessels [member] | 2016 Credit Facility [Member]
Disclosure of detailed information about borrowings [line items]
Number of collateralized vessels refinanced | vessel				16

Current and long-term debt - _6

Current and long-term debt - 2017 credit facility (Details)	1 Months Ended		12 Months Ended
	Sep. 30, 2018	Mar. 31, 2017USD ($)tranche	Dec. 31, 2018USD ($)vessel	Dec. 31, 2017USD ($)vessel
Disclosure of detailed information about borrowings [line items]
Debt outstanding			$ 2,910,315,000	$ 2,767,193,000
2017 Credit Facility [Member]
Disclosure of detailed information about borrowings [line items]
Loan maximum borrowing capacity		$ 172,000,000
Number of borrowing tranches | tranche		5
Net debt to capitalization ratio		0.60
Consolidated tangible net worth		$ 1,000,000,000
Cumulative positive net income		25.00%
Net proceeds of equity issuance		50.00%
Minimum ratio for fair value of vessels	155.00%	155.00%
Deposit in debt service reserve account			5,000,000
Repayments			10,500,000
Unscheduled repayment of borrowings			8,000,000
Debt outstanding			144,800,000	141,800,000
2017 Credit Facility - Commercial Tranche [Member]
Disclosure of detailed information about borrowings [line items]
Number of borrowing tranches | tranche		2
2017 Credit Facility - Commercial Tranche One [Member]
Disclosure of detailed information about borrowings [line items]
Loan maximum borrowing capacity		$ 15,000,000
Borrowings instrument term		6 years
Repayment profile term		15 years
2017 Credit Facility - Commercial Tranche One [Member] | London Interbank Offered Rate (LIBOR) [Member]
Disclosure of detailed information about borrowings [line items]
Adjustment to interest rate basis		2.25%
2017 Credit Facility - Commercial Tranche Two [Member]
Disclosure of detailed information about borrowings [line items]
Loan maximum borrowing capacity		$ 25,000,000
Borrowings instrument term		9 years
Repayment profile term		15 years
2017 Credit Facility - Commercial Tranche Two [Member] | London Interbank Offered Rate (LIBOR) [Member]
Disclosure of detailed information about borrowings [line items]
Adjustment to interest rate basis		2.25%
2017 Credit Facility - KEXIM Funded Tranche and GIEK Guaranteed Tranche [Member]
Disclosure of detailed information about borrowings [line items]
Borrowings instrument term		12 years
Repayment profile term		12 years
2017 Credit Facility - KEXIM Funded Tranche and GIEK Guaranteed Tranche [Member] | London Interbank Offered Rate (LIBOR) [Member]
Disclosure of detailed information about borrowings [line items]
Adjustment to interest rate basis		2.15%
2017 Credit Facility - KEXIM Funded Tranche [Member]
Disclosure of detailed information about borrowings [line items]
Loan maximum borrowing capacity		$ 52,000,000
2017 Credit Facility - GIEK Guaranteed Tranche [Member]
Disclosure of detailed information about borrowings [line items]
Loan maximum borrowing capacity		32,000,000
2017 Credit Facility - KEXIM Guaranteed Tranche [Member]
Disclosure of detailed information about borrowings [line items]
Loan maximum borrowing capacity		$ 48,000,000
Borrowings instrument term		12 years
Repayment profile term		12 years
2017 Credit Facility - KEXIM Guaranteed Tranche [Member] | London Interbank Offered Rate (LIBOR) [Member]
Disclosure of detailed information about borrowings [line items]
Adjustment to interest rate basis		1.60%
Consolidated Liquidity Requirement - Scenario One [Member] | 2017 Credit Facility [Member]
Disclosure of detailed information about borrowings [line items]
Covenant liquidity requirement amount		$ 25,000,000
Consolidated Liquidity Requirement - Scenario Two [Member] | 2017 Credit Facility [Member]
Disclosure of detailed information about borrowings [line items]
Consolidated liquidity requirement per each owned vessel		500,000
Consolidated liquidity requirement per each chartered-in vessel		$ 250,000
Seven Newbuildings [Member] | Vessels [member] | 2017 Credit Facility [Member]
Disclosure of detailed information about borrowings [line items]
Drawdowns				$ 145,500,000
Number of collateralized vessels refinanced | vessel				7
STI Jardins [Member] | Vessels [member] | 2017 Credit Facility [Member]
Disclosure of detailed information about borrowings [line items]
Drawdowns			$ 21,500,000
Number of collateralized vessels refinanced | vessel			1

Current and long-term debt - _7

Current and long-term debt - Schedule of drawdowns (Details) $ in Millions	12 Months Ended
	Dec. 31, 2018USD ($)
2017 Credit Facility [Member] | Vessels [member] | STI Jardins [Member]
Disclosure of detailed information about borrowings [line items]
Drawdowns	$ 21.5

Current and long-term debt - HS

Current and long-term debt - HSH Nordbank credit facility (Details) - USD ($)	1 Months Ended			12 Months Ended
	Sep. 30, 2018	Oct. 31, 2017	Feb. 28, 2017	Dec. 31, 2018	Jan. 31, 2017
HSH Credit Facility [Member]
Disclosure of detailed information about borrowings [line items]
Loan maximum borrowing capacity					$ 31,100,000
Repayments	$ 14,200,000
Drawdowns			$ 31,100,000
Write-offs of deferred financing fees related to repayment of debt				$ 200,000
Vessels [member] | STI Duchessa and STI Onyx [Member] | 2011 Credit Facility [Member]
Disclosure of detailed information about borrowings [line items]
Repayments			$ 23,700,000
Vessels [member] | STI Onyx [Member] | HSH Credit Facility [Member]
Disclosure of detailed information about borrowings [line items]
Repayments		$ 13,800,000
Vessels [member] | STI Duchessa [Member] | HSH Credit Facility [Member]
Disclosure of detailed information about borrowings [line items]
Repayments	$ 14,200,000

Current and long-term debt - DV

Current and long-term debt - DVB 2017 credit facility (Details)	1 Months Ended				12 Months Ended
	Oct. 31, 2018USD ($)	Sep. 30, 2018USD ($)	Aug. 31, 2018USD ($)	Mar. 31, 2017USD ($)vessel	Dec. 31, 2018USD ($)	Dec. 31, 2017USD ($)
Disclosure of detailed information about borrowings [line items]
Debt outstanding					$ 2,910,315,000	$ 2,767,193,000
DVB 2017 Credit Facility [Member]
Disclosure of detailed information about borrowings [line items]
Loan maximum borrowing capacity				$ 81,400,000
Repayments	$ 25,800,000	$ 14,800,000	$ 33,500,000		78,400,000
STI Alexis, STI Milwaukee, STI Seneca and STI Wembley [Member] | Vessels [member] | DVB 2017 Credit Facility [Member]
Disclosure of detailed information about borrowings [line items]
Number of collateralized vessels refinanced | vessel				4
Write-offs of deferred financing fees related to repayment of debt					$ 1,200,000

Current and long-term debt - _8

Current and long-term debt - Credit Agricole credit facility (Details) - USD ($)	1 Months Ended
	Jun. 30, 2017	Dec. 31, 2018	Dec. 31, 2017
Disclosure of detailed information about borrowings [line items]
Debt outstanding		$ 2,910,315,000	$ 2,767,193,000
Credit Agricole Credit Facility [Member]
Disclosure of detailed information about borrowings [line items]
Periodic borrowing payment amount	$ 2,100,000
Borrowings instrument term	15 years
Net debt to capitalization ratio	0.60
Consolidated tangible net worth	$ 1,000,000,000
Cumulative positive net income	25.00%
Net proceeds of equity issuance	50.00%
Minimum ratio for fair value of vessels	135.00%
Debt outstanding		$ 96,200,000	$ 103,900,000
Credit Agricole Credit Facility [Member] | London Interbank Offered Rate (LIBOR) [Member]
Disclosure of detailed information about borrowings [line items]
Adjustment to interest rate basis	2.75%
Consolidated Liquidity Requirement - Scenario One [Member] | Credit Agricole Credit Facility [Member]
Disclosure of detailed information about borrowings [line items]
Covenant liquidity requirement amount	$ 25,000,000
Consolidated Liquidity Requirement - Scenario Two [Member] | Credit Agricole Credit Facility [Member]
Disclosure of detailed information about borrowings [line items]
Consolidated liquidity requirement per each owned vessel	500,000
Consolidated liquidity requirement per each chartered-in vessel	$ 250,000

Current and long-term debt - _9

Current and long-term debt - ABN AMRO/K-Sure credit facility (Details)	1 Months Ended
	Sep. 30, 2017USD ($)vesseltranche	Dec. 31, 2018USD ($)	Dec. 31, 2017USD ($)
Disclosure of detailed information about borrowings [line items]
Debt outstanding		$ 2,910,315,000	$ 2,767,193,000
ABN / K-Sure Credit Facility [Member]
Disclosure of detailed information about borrowings [line items]
Number of borrowing tranches | tranche	2
Net debt to capitalization ratio	0.60
Consolidated tangible net worth	$ 1,000,000,000
Cumulative positive net income	25.00%
Net proceeds of equity issuance	50.00%
Minimum ratio for fair value of vessels	135.00%
Deposit in debt service reserve account		500,000
Debt outstanding		$ 46,800,000	$ 49,900,000
ABN AMRO / K-Sure Credit Facility - Commercial Tranche [Member]
Disclosure of detailed information about borrowings [line items]
Loan maximum borrowing capacity	$ 11,500,000
ABN AMRO / K-Sure Credit Facility - Commercial Tranche [Member] | London Interbank Offered Rate (LIBOR) [Member]
Disclosure of detailed information about borrowings [line items]
Adjustment to interest rate basis	2.75%
ABN AMRO / K-Sure Credit Facility - K-Sure Tranche [Member]
Disclosure of detailed information about borrowings [line items]
Loan maximum borrowing capacity	$ 43,800,000
Periodic borrowing payment amount	$ 1,000,000
Borrowings instrument term	12 years
ABN AMRO / K-Sure Credit Facility - K-Sure Tranche [Member] | London Interbank Offered Rate (LIBOR) [Member]
Disclosure of detailed information about borrowings [line items]
Adjustment to interest rate basis	1.80%
Consolidated Liquidity Requirement - Scenario One [Member] | ABN / K-Sure Credit Facility [Member]
Disclosure of detailed information about borrowings [line items]
Covenant liquidity requirement amount	$ 25,000,000
Consolidated Liquidity Requirement - Scenario Two [Member] | ABN / K-Sure Credit Facility [Member]
Disclosure of detailed information about borrowings [line items]
Consolidated liquidity requirement per each owned vessel	500,000
Consolidated liquidity requirement per each chartered-in vessel	$ 250,000
STI Precision And STI Prestige [Member] | Vessels [member] | ABN / K-Sure Credit Facility [Member]
Disclosure of detailed information about borrowings [line items]
Number of collateralized vessels refinanced | vessel	2

Current and long-term debt - Ci

Current and long-term debt - Citibank/K-Sure credit facility (Details)	1 Months Ended
	Sep. 30, 2017USD ($)vesseltranche	Dec. 31, 2018USD ($)	Dec. 31, 2017USD ($)
Disclosure of detailed information about borrowings [line items]
Debt outstanding		$ 2,910,315,000	$ 2,767,193,000
Citibank / K-Sure Credit Facility [Member]
Disclosure of detailed information about borrowings [line items]
Number of borrowing tranches | tranche	2
Net debt to capitalization ratio	0.60
Consolidated tangible net worth	$ 1,000,000,000
Cumulative positive net income	25.00%
Net proceeds of equity issuance	50.00%
Minimum ratio for fair value of vessels	135.00%
Deposit in debt service reserve account		4,000,000
Debt outstanding		$ 97,600,000	$ 104,100,000
Citibank / K-Sure Credit Facility - Commercial Tranche [Member]
Disclosure of detailed information about borrowings [line items]
Loan maximum borrowing capacity	$ 25,100,000
Citibank / K-Sure Credit Facility - K-Sure Tranche [Member]
Disclosure of detailed information about borrowings [line items]
Loan maximum borrowing capacity	91,200,000
Periodic borrowing payment amount	$ 2,100,000
Borrowings instrument term	12 years
Consolidated Liquidity Requirement - Scenario One [Member] | Citibank / K-Sure Credit Facility [Member]
Disclosure of detailed information about borrowings [line items]
Covenant liquidity requirement amount	$ 25,000,000
Consolidated Liquidity Requirement - Scenario Two [Member] | Citibank / K-Sure Credit Facility [Member]
Disclosure of detailed information about borrowings [line items]
Consolidated liquidity requirement per each owned vessel	500,000
Consolidated liquidity requirement per each chartered-in vessel	$ 250,000
Vessels [member] | STI Excellence, STI Executive, STI Experience and STI Express [Member] | Citibank / K-Sure Credit Facility [Member]
Disclosure of detailed information about borrowings [line items]
Number of collateralized vessels refinanced | vessel	4
London Interbank Offered Rate (LIBOR) [Member] | Citibank / K-Sure Credit Facility - Commercial Tranche [Member]
Disclosure of detailed information about borrowings [line items]
Adjustment to interest rate basis	2.50%
London Interbank Offered Rate (LIBOR) [Member] | Citibank / K-Sure Credit Facility - K-Sure Tranche [Member]
Disclosure of detailed information about borrowings [line items]
Adjustment to interest rate basis	1.60%

Current and long-term debt -_10

Current and long-term debt - ABN AMRO / SEB Credit Facility (Details)	1 Months Ended	2 Months Ended	12 Months Ended
	Jun. 30, 2018USD ($)tanker	Sep. 30, 2018USD ($)	Dec. 31, 2018USD ($)	Dec. 31, 2017USD ($)	Feb. 28, 2014USD ($)
Disclosure of detailed information about borrowings [line items]
Borrowings			$ 2,910,315,000	$ 2,767,193,000
K-Sure Credit Facility [Member]
Disclosure of detailed information about borrowings [line items]
Loan maximum borrowing capacity					$ 458,300,000
Repayments		$ 13,000,000	239,900,000
Borrowings				$ 239,919,000
ABN AMRO / SEB Credit Facility [Member]
Disclosure of detailed information about borrowings [line items]
Loan maximum borrowing capacity	$ 120,600,000
Net debt to capitalization ratio	0.65
Consolidated tangible net worth	$ 1,265,728,005
Cumulative positive net income	25.00%
Net proceeds of equity issuance	50.00%
Borrowings			$ 114,800,000
ABN AMRO / SEB Credit Facility [Member] | London Interbank Offered Rate (LIBOR) [Member]
Disclosure of detailed information about borrowings [line items]
Adjustment to interest rate basis	2.60%
Consolidated Liquidity Requirement - Scenario One [Member] | ABN AMRO / SEB Credit Facility [Member]
Disclosure of detailed information about borrowings [line items]
Covenant liquidity requirement amount	$ 25,000,000
Consolidated Liquidity Requirement - Scenario Two [Member] | ABN AMRO / SEB Credit Facility [Member]
Disclosure of detailed information about borrowings [line items]
Consolidated liquidity requirement per each owned vessel	500,000
Consolidated liquidity requirement per each chartered-in vessel	250,000
STI Hammersmith, STI Westminster, STI Connaught, STI Winnie and STI Lauren [Member] | Vessels [member] | K-Sure Credit Facility [Member]
Disclosure of detailed information about borrowings [line items]
Repayments	$ 87,600,000
Number of collateralized vessels refinanced | tanker	5
STI Hammersmith [Member] | Handymax [Member] | Vessels [member] | K-Sure Credit Facility [Member]
Disclosure of detailed information about borrowings [line items]
Number of collateralized vessels refinanced | tanker	1
STI Westminster [Member] | MR [Member] | Vessels [member] | K-Sure Credit Facility [Member]
Disclosure of detailed information about borrowings [line items]
Number of collateralized vessels refinanced | tanker	1
STI Connaught, STI Winnie and STI Lauren [Member] | LR2 [Member] | Vessels [member] | K-Sure Credit Facility [Member]
Disclosure of detailed information about borrowings [line items]
Number of collateralized vessels refinanced | tanker	3
Borrowings, Financial Covenants, Period One [Member] | Consolidated Liquidity Requirement - Scenario Two [Member] | ABN AMRO / SEB Credit Facility [Member]
Disclosure of detailed information about borrowings [line items]
Minimum ratio for fair value of vessels	130.00%
Borrowings, Financial Covenants, Period Two [Member] | Consolidated Liquidity Requirement - Scenario Two [Member] | ABN AMRO / SEB Credit Facility [Member]
Disclosure of detailed information about borrowings [line items]
Minimum ratio for fair value of vessels	140.00%
First Eight Installments [Member] | ABN AMRO / SEB Credit Facility [Member]
Disclosure of detailed information about borrowings [line items]
Periodic borrowing payment amount	$ 2,900,000
Remainder of Payments [Member] | ABN AMRO / SEB Credit Facility [Member]
Disclosure of detailed information about borrowings [line items]
Periodic borrowing payment amount	$ 2,500,000

Current and long-term debt - BC

Current and long-term debt - BCFL Lease Financing (MR) (Details)	1 Months Ended
	Sep. 30, 2017USD ($)vesseloption	Dec. 31, 2018USD ($)	Dec. 31, 2017USD ($)vessel
Disclosure of detailed information about borrowings [line items]
Debt outstanding		$ 2,910,315,000	$ 2,767,193,000
BCFL Lease Financing (MRs) [Member]
Disclosure of detailed information about borrowings [line items]
Debt outstanding		$ 98,800,000	$ 109,200,000
BCFL Lease Financing (MRs) [Member] | Bottom of range [member]
Disclosure of detailed information about borrowings [line items]
Deposit minimum per vessel	$ 5,100,000
Minimum ratio for fair value of vessels	100.00%
STI Amber, STI Topaz, STI Ruby, STI Garnet and STI Onyx [Member]
Disclosure of detailed information about borrowings [line items]
Number of vessels under finance lease arrangements | vessel			5
MR [Member] | STI Amber, STI Topaz, STI Ruby, STI Garnet and STI Onyx [Member] | Vessels [member] | Bottom of range [member]
Disclosure of detailed information about borrowings [line items]
Sale leaseback, option to purchase period	5 years
MR [Member] | STI Amber, STI Topaz, STI Ruby, STI Garnet and STI Onyx [Member] | Vessels [member] | Top of range [member]
Disclosure of detailed information about borrowings [line items]
Sale leaseback, option to purchase period	10 years
MR [Member] | STI Amber, STI Topaz, STI Ruby, STI Garnet and STI Onyx [Member] | Vessels [member] | BCFL Lease Financing (MRs) [Member]
Disclosure of detailed information about borrowings [line items]
Number of vessels under finance lease arrangements | vessel	5
Sale leaseback transaction, gross proceeds per vessel	$ 27,500,000
Sale leaseback transaction, term	7 years
Finance lease daily rate per vessel	$ 9,025
Number of options in sale leaseback | option	3
Sale leaseback, option term	1 year
Sale leaseback, deposit per vessel	$ 5,100,000

Current and long-term debt -_11

Current and long-term debt - BCFL Lease Financing (LR2) (Details) $ in Thousands	Sep. 01, 2017vessel	Sep. 30, 2017	Dec. 31, 2018USD ($)	Dec. 31, 2017USD ($)
Disclosure of detailed information about borrowings [line items]
Borrowings			$ 2,910,315	$ 2,767,193
BCFL Lease Financing (LR2s) [Member]
Disclosure of detailed information about borrowings [line items]
Deposit in debt service reserve account			800
Borrowings			97,500	$ 104,200
BCFL Lease Financing (LR2s) [Member] | Bottom of range [member]
Disclosure of detailed information about borrowings [line items]
Periodic payment per vessel			200
BCFL Lease Financing (LR2s) [Member] | Top of range [member]
Disclosure of detailed information about borrowings [line items]
Periodic payment per vessel			$ 300
BCFL Lease Financing (LR2s) [Member] | London Interbank Offered Rate (LIBOR) [Member]
Disclosure of detailed information about borrowings [line items]
Adjustment to interest rate basis	3.50%
STI Solace, STI Solidarity And STI Stability [Member] | Vessels [member] | LR2 [Member] | BCFL Lease Financing (LR2s) [Member]
Disclosure of detailed information about borrowings [line items]
Sale leaseback, option to purchase period		4 years
STI Solace, STI Solidarity And STI Stability [Member] | Vessels [member] | NPTI September Closing [Member] | LR2 [Member] | BCFL Lease Financing (LR2s) [Member]
Disclosure of detailed information about borrowings [line items]
Number of vessels under finance lease arrangements | vessel	3
Borrowings, bareboat charter term	10 years

Current and long-term debt - CS

Current and long-term debt - CSSC Shipping Lease Financing (Details) $ in Thousands	Sep. 01, 2017USD ($)vessel	Sep. 30, 2017USD ($)	Dec. 31, 2018USD ($)	Dec. 31, 2017USD ($)
Disclosure of detailed information about borrowings [line items]
Borrowings			$ 2,910,315	$ 2,767,193
CSSC Lease Financing [Member]
Disclosure of detailed information about borrowings [line items]
Periodic payment per vessel	$ 200
Minimum ratio for fair value of vessels	125.00%
Repayments		$ 10,900
Sale leaseback, option to purchase period		4 years
Borrowings			$ 251,800	$ 270,000
CSSC Lease Financing [Member] | London Interbank Offered Rate (LIBOR) [Member]
Disclosure of detailed information about borrowings [line items]
Adjustment to interest rate basis	4.60%
Vessels [member] | LR2 [Member] | NPTI September Closing [Member] | STI Gallantry, STI Nautilus, STI Guard, STI Guide, STI Goal, STI Gauntlet, STI Gladiator, STI Gratitude [Member] | CSSC Lease Financing [Member]
Disclosure of detailed information about borrowings [line items]
Number of vessels under finance lease arrangements | vessel	8
Borrowings, bareboat charter term	10 years

Current and long-term debt - CM

Current and long-term debt - CMBFL Lease Financing (Details)	Sep. 01, 2017USD ($)vessel	Sep. 30, 2017	Dec. 31, 2018USD ($)	Dec. 31, 2017USD ($)
Disclosure of detailed information about borrowings [line items]
Borrowings			$ 2,910,315,000	$ 2,767,193,000
CMBFL Lease Financing [Member]
Disclosure of detailed information about borrowings [line items]
Periodic payment per vessel	$ 600,000
Sale leaseback, option to purchase period		3 years
Net debt to capitalization ratio	0.60
Consolidated tangible net worth	$ 1,000,000,000
Cumulative positive net income	25.00%
Net proceeds of equity issuance	50.00%
Minimum ratio for fair value of vessels	115.00%
Deposit in debt service reserve account			2,000,000
Borrowings			$ 61,200,000	$ 65,900,000
CMBFL Lease Financing [Member] | London Interbank Offered Rate (LIBOR) [Member]
Disclosure of detailed information about borrowings [line items]
Adjustment to interest rate basis	3.75%
LR2 [Member] | Vessels [member] | NPTI September Closing [Member] | STI Pride And STI Providence [Member] | CMBFL Lease Financing [Member]
Disclosure of detailed information about borrowings [line items]
Number of vessels under finance lease arrangements | vessel	2
Borrowings, bareboat charter term	7 years
Consolidated Liquidity Requirement - Scenario One [Member] | CMBFL Lease Financing [Member]
Disclosure of detailed information about borrowings [line items]
Covenant liquidity requirement amount	$ 25,000,000
Consolidated Liquidity Requirement - Scenario Two [Member] | CMBFL Lease Financing [Member]
Disclosure of detailed information about borrowings [line items]
Consolidated liquidity requirement per each owned vessel	500,000
Consolidated liquidity requirement per each chartered-in vessel	$ 250,000

Current and long-term debt - Oc

Current and long-term debt - Ocean Yield Lease Financing (Details)	Sep. 01, 2017USD ($)vessel	Sep. 30, 2017	Dec. 31, 2018USD ($)	Dec. 31, 2017USD ($)
Disclosure of detailed information about borrowings [line items]
Borrowings			$ 2,910,315,000	$ 2,767,193,000
Ocean Yield Lease Financing [Member]
Disclosure of detailed information about borrowings [line items]
Sale leaseback, option to purchase period		7 years
Net debt to capitalization ratio	0.60
Consolidated tangible net worth	$ 1,000,000,000
Cumulative positive net income	25.00%
Net proceeds of equity issuance	50.00%
Borrowings			$ 158,800,000	$ 169,000,000
Ocean Yield Lease Financing [Member] | Bottom of range [member]
Disclosure of detailed information about borrowings [line items]
Periodic payment per vessel	$ 200,000
Ocean Yield Lease Financing [Member] | Top of range [member]
Disclosure of detailed information about borrowings [line items]
Periodic payment per vessel	$ 300,000
Ocean Yield Lease Financing [Member] | London Interbank Offered Rate (LIBOR) [Member]
Disclosure of detailed information about borrowings [line items]
Adjustment to interest rate basis	5.40%
STI Sanctity, STI Steadfast, STI Supreme And STI Symphony [Member] | LR2 [Member] | NPTI September Closing [Member] | Vessels [member] | Ocean Yield Lease Financing [Member]
Disclosure of detailed information about borrowings [line items]
Number of vessels under finance lease arrangements | vessel	4
Borrowings, bareboat charter term	13 years
Consolidated Liquidity Requirement - Scenario One [Member] | Ocean Yield Lease Financing [Member]
Disclosure of detailed information about borrowings [line items]
Covenant liquidity requirement amount	$ 25,000,000
Consolidated Liquidity Requirement - Scenario Two [Member] | Ocean Yield Lease Financing [Member]
Disclosure of detailed information about borrowings [line items]
Consolidated liquidity requirement per each owned vessel	500,000
Consolidated liquidity requirement per each chartered-in vessel	$ 250,000

Current and long-term debt - Ch

Current and long-term debt - China Huarong Sale and Leaseback (Details) $ in Thousands	1 Months Ended				12 Months Ended
	Oct. 31, 2018USD ($)	Sep. 30, 2018USD ($)	Aug. 31, 2018USD ($)	May 31, 2018USD ($)tanker	Dec. 31, 2018USD ($)	Dec. 31, 2017USD ($)
Disclosure of detailed information about borrowings [line items]
Borrowings					$ 2,910,315	$ 2,767,193
China Huarong Lease Financing [Member]
Disclosure of detailed information about borrowings [line items]
Borrowings				$ 144,000	137,300
Sale leaseback transaction, term				8 years
Periodic payment per vessel				$ 600
Consolidated tangible net worth				$ 650,000
China Huarong Lease Financing [Member] | Bottom of range [member]
Disclosure of detailed information about borrowings [line items]
Sale leaseback, option to purchase period				3 years
China Huarong Lease Financing [Member] | Top of range [member]
Disclosure of detailed information about borrowings [line items]
Sale leaseback, option to purchase period				8 years
China Huarong Lease Financing [Member] | London Interbank Offered Rate (LIBOR) [Member]
Disclosure of detailed information about borrowings [line items]
Adjustment to interest rate basis				3.50%
2016 Credit Facility [Member]
Disclosure of detailed information about borrowings [line items]
Repayments	$ 59,200	$ 30,000	$ 92,700		$ 196,000
STI Opera, STI Virtus, STI Venere, STI Aqua, STI Dama, and STI Regina [Member] | Vessels [member] | MR [Member] | China Huarong Lease Financing [Member]
Disclosure of detailed information about borrowings [line items]
Number of vessels under finance lease arrangements | tanker				6

Current and long-term debt - $1

Current and long-term debt - $116.0 million Sale and Leaseback (Details)	1 Months Ended		2 Months Ended	12 Months Ended
	Sep. 30, 2018USD ($)	Aug. 31, 2018USD ($)tanker	Sep. 30, 2018USD ($)	Dec. 31, 2018USD ($)	Dec. 31, 2017USD ($)
Disclosure of detailed information about borrowings [line items]
Borrowings				$ 2,910,315,000	$ 2,767,193,000
$116.0 Million Lease Financing [Member]
Disclosure of detailed information about borrowings [line items]
Aggregate principal amount notes issued		$ 116,000,000
Borrowings		$ 114,800,000		112,700,000
Sale leaseback transaction, term		7 years
Sale leaseback, option to purchase period		3 years
Minimum ratio for fair value of vessels		111.00%
Credit Suisse Credit Facility [Member]
Disclosure of detailed information about borrowings [line items]
Repayments		$ 26,500,000	$ 26,100,000	$ 53,500,000
Senior Secured Term Loan Facility - K-Sure Credit Facility, Repayment One [Member]
Disclosure of detailed information about borrowings [line items]
Repayments	$ 12,600,000	$ 46,600,000
STI Gramercy and STI Queens [Member] | MR [Member] | Vessels [member] | $116.0 Million Lease Financing [Member]
Disclosure of detailed information about borrowings [line items]
Number of vessels under finance lease arrangements | tanker		2
Borrowings		$ 23,800,000
Finance lease daily rate per vessel		$ 7,935
STI Oxford and STI Selatar [Member] | LR2 [Member] | Vessels [member] | $116.0 Million Lease Financing [Member]
Disclosure of detailed information about borrowings [line items]
Number of vessels under finance lease arrangements | tanker		2
Borrowings		$ 33,700,000
Finance lease daily rate per vessel		$ 11,040

Current and long-term debt -_12

Current and long-term debt - 2018 CMB Sale and Leaseback (Details)	1 Months Ended				12 Months Ended
	Oct. 31, 2018USD ($)	Sep. 30, 2018USD ($)	Aug. 31, 2018USD ($)	Jul. 31, 2018USD ($)tanker	Dec. 31, 2018USD ($)	Dec. 31, 2017USD ($)
Disclosure of detailed information about borrowings [line items]
Borrowings					$ 2,910,315,000	$ 2,767,193,000
2018 CMB Sale and Leaseback [Member]
Disclosure of detailed information about borrowings [line items]
Borrowings				$ 141,600,000	136,500,000
Sale leaseback transaction, term				8 years
Periodic payment per vessel				$ 400,000
Net debt to capitalization ratio				0.60
Consolidated tangible net worth				$ 1,000,000,000
Cumulative positive net income				25.00%
Net proceeds of equity issuance				50.00%
Minimum ratio for fair value of vessels				115.00%
2018 CMB Sale and Leaseback [Member] | Bottom of range [member]
Disclosure of detailed information about borrowings [line items]
Sale leaseback, option to purchase period				4 years
2018 CMB Sale and Leaseback [Member] | Top of range [member]
Disclosure of detailed information about borrowings [line items]
Sale leaseback, option to purchase period				8 years
2018 CMB Sale and Leaseback [Member] | London Interbank Offered Rate (LIBOR) [Member]
Disclosure of detailed information about borrowings [line items]
Adjustment to interest rate basis				3.20%
DVB 2017 Credit Facility [Member]
Disclosure of detailed information about borrowings [line items]
Repayments	$ 25,800,000	$ 14,800,000	$ 33,500,000		$ 78,400,000
Senior Secured Term Loan Facility - K-Sure Credit Facility, Repayment Two [Member]
Disclosure of detailed information about borrowings [line items]
Repayments		$ 13,600,000	39,700,000
BNPP Credit Facility [Member]
Disclosure of detailed information about borrowings [line items]
Repayments			$ 14,400,000
STI Battery, STI Milwaukee, STI Tribeca, STI Bronx, STI Manhattan, and STI Seneca [Member] | MR [Member] | Vessels [member] | 2018 CMB Sale and Leaseback [Member]
Disclosure of detailed information about borrowings [line items]
Number of vessels under finance lease arrangements | tanker				6
Consolidated Liquidity Requirement - Scenario One [Member] | 2018 CMB Sale and Leaseback [Member]
Disclosure of detailed information about borrowings [line items]
Covenant liquidity requirement amount				$ 25,000,000
Consolidated Liquidity Requirement - Scenario Two [Member] | 2018 CMB Sale and Leaseback [Member]
Disclosure of detailed information about borrowings [line items]
Consolidated liquidity requirement per each owned vessel				500,000
Consolidated liquidity requirement per each chartered-in vessel				$ 250,000

Current and long-term debt - AV

Current and long-term debt - AVIC Sale and Leaseback (Details)	1 Months Ended		2 Months Ended	12 Months Ended
	Aug. 31, 2018USD ($)	Jul. 31, 2018USD ($)tanker	Sep. 30, 2018USD ($)	Dec. 31, 2018USD ($)	Dec. 31, 2017USD ($)
Disclosure of detailed information about borrowings [line items]
Borrowings				$ 2,910,315,000	$ 2,767,193,000
AVIC Lease Financing [Member]
Disclosure of detailed information about borrowings [line items]
Borrowings		$ 145,000,000		139,100,000
Sale leaseback transaction, term		8 years
Net debt to capitalization ratio		0.70
Consolidated tangible net worth		$ 650,000,000
Minimum ratio for fair value of vessels		110.00%
AVIC Lease Financing [Member] | Bottom of range [member]
Disclosure of detailed information about borrowings [line items]
Sale leaseback, option to purchase period		2 years
AVIC Lease Financing [Member] | Top of range [member]
Disclosure of detailed information about borrowings [line items]
Sale leaseback, option to purchase period		8 years
AVIC Lease Financing [Member] | London Interbank Offered Rate (LIBOR) [Member]
Disclosure of detailed information about borrowings [line items]
Adjustment to interest rate basis		3.70%
NIBC Credit Facility [Member]
Disclosure of detailed information about borrowings [line items]
Repayments			$ 32,700,000	34,700,000
K-Sure Credit Facility [Member]
Disclosure of detailed information about borrowings [line items]
Borrowings					$ 239,919,000
Repayments			13,000,000	239,900,000
Scotiabank Credit Facility [Member]
Disclosure of detailed information about borrowings [line items]
Repayments			28,300,000
Credit Suisse Credit Facility [Member]
Disclosure of detailed information about borrowings [line items]
Repayments	$ 26,500,000		$ 26,100,000	$ 53,500,000
STI Ville, STI Fontvieille and STI Brooklyn [Member] | Vessels [member] | MR [Member] | AVIC Lease Financing [Member]
Disclosure of detailed information about borrowings [line items]
Number of vessels under finance lease arrangements | tanker		3
Borrowings		$ 24,000,000
Periodic payment per vessel		$ 500,000
STI Rose and STI Rambla [Member] | Vessels [member] | LR2 [Member] | AVIC Lease Financing [Member]
Disclosure of detailed information about borrowings [line items]
Number of vessels under finance lease arrangements | tanker		2
Borrowings		$ 36,500,000
Periodic payment per vessel		$ 800,000

Current and long-term debt - CO

Current and long-term debt - COSCO Shipping Sale and Leaseback (Details)	1 Months Ended			12 Months Ended
	Oct. 31, 2018USD ($)	Sep. 30, 2018USD ($)tanker	Aug. 31, 2018USD ($)	Dec. 31, 2018USD ($)	Dec. 31, 2017USD ($)
Disclosure of detailed information about borrowings [line items]
Borrowings				$ 2,910,315,000	$ 2,767,193,000
COSCO Lease Financing [Member]
Disclosure of detailed information about borrowings [line items]
Borrowings		$ 88,000,000		84,200,000
Sale leaseback transaction, term		8 years
Periodic payment per vessel		$ 500,000
Net debt to capitalization ratio		0.65
Consolidated tangible net worth		$ 1,000,000,000
Cumulative positive net income		25.00%
Net proceeds of equity issuance		50.00%
Minimum ratio for fair value of vessels		110.00%
COSCO Lease Financing [Member] | Bottom of range [member]
Disclosure of detailed information about borrowings [line items]
Sale leaseback, option to purchase period		2 years
COSCO Lease Financing [Member] | Top of range [member]
Disclosure of detailed information about borrowings [line items]
Sale leaseback, option to purchase period		8 years
COSCO Lease Financing [Member] | London Interbank Offered Rate (LIBOR) [Member]
Disclosure of detailed information about borrowings [line items]
Adjustment to interest rate basis		3.60%
DVB 2017 Credit Facility [Member]
Disclosure of detailed information about borrowings [line items]
Repayments	$ 25,800,000	$ 14,800,000	$ 33,500,000	78,400,000
Senior Secured Term Loan Facility - K-Sure Credit Facility, Repayment One [Member]
Disclosure of detailed information about borrowings [line items]
Repayments		12,600,000	46,600,000
2016 Credit Facility [Member]
Disclosure of detailed information about borrowings [line items]
Repayments	$ 59,200,000	$ 30,000,000	$ 92,700,000	$ 196,000,000
STI Battersea and STI Wembley [Member] | Handymax [Member] | Vessels [member] | COSCO Lease Financing [Member]
Disclosure of detailed information about borrowings [line items]
Number of vessels under finance lease arrangements | tanker		2
Borrowings		$ 21,200,000
STI Texas City and STI Meraux [Member] | MR [Member] | Vessels [member] | COSCO Lease Financing [Member]
Disclosure of detailed information about borrowings [line items]
Number of vessels under finance lease arrangements | tanker		2
Borrowings		$ 22,800,000

Current and long-term debt -_13

Current and long-term debt - $157.5 million Sale and Leaseback (Details)	1 Months Ended				12 Months Ended
	Oct. 31, 2018USD ($)	Sep. 30, 2018USD ($)tanker	Aug. 31, 2018USD ($)	Jul. 31, 2018USD ($)tanker	Dec. 31, 2018USD ($)	Dec. 31, 2017USD ($)
Disclosure of detailed information about borrowings [line items]
Borrowings					$ 2,910,315,000	$ 2,767,193,000
Number of vessels repaid | tanker		2
$157.5 Million Lease Financing [Member]
Disclosure of detailed information about borrowings [line items]
Aggregate principal amount notes issued				$ 157,500,000
Borrowings				$ 157,500,000	152,100,000
Sale leaseback transaction, term				7 years
Net debt to capitalization ratio				0.60
Consolidated tangible net worth				$ 1,000,000,000
Cumulative positive net income				25.00%
Net proceeds of equity issuance				50.00%
Minimum ratio for fair value of vessels				115.00%
$157.5 Million Lease Financing [Member] | Bottom of range [member]
Disclosure of detailed information about borrowings [line items]
Sale leaseback, option to purchase period				3 years
$157.5 Million Lease Financing [Member] | Top of range [member]
Disclosure of detailed information about borrowings [line items]
Sale leaseback, option to purchase period				7 years
$157.5 Million Lease Financing [Member] | London Interbank Offered Rate (LIBOR) [Member]
Disclosure of detailed information about borrowings [line items]
Adjustment to interest rate basis				3.00%
HSH Credit Facility [Member]
Disclosure of detailed information about borrowings [line items]
Repayments		$ 14,200,000
Senior Secured Term Loan Facility - K-Sure Credit Facility, Repayment Two [Member]
Disclosure of detailed information about borrowings [line items]
Repayments		13,600,000	$ 39,700,000
2016 Credit Facility [Member]
Disclosure of detailed information about borrowings [line items]
Repayments	$ 59,200,000	30,000,000	92,700,000		196,000,000
DVB 2017 Credit Facility [Member]
Disclosure of detailed information about borrowings [line items]
Repayments	$ 25,800,000	$ 14,800,000	$ 33,500,000		$ 78,400,000
STI San Antonio, STI Benicia, STI St. Charles, STI Yorkville, STI Mayfair, and STI Duchessa [Member] | MR [Member] | Vessels [member] | $157.5 Million Lease Financing [Member]
Disclosure of detailed information about borrowings [line items]
Number of vessels under finance lease arrangements | tanker				6
Periodic payment per vessel				$ 500,000
STI Alexis [Member] | LR2 [Member] | Vessels [member] | $157.5 Million Lease Financing [Member]
Disclosure of detailed information about borrowings [line items]
Number of vessels under finance lease arrangements | tanker				1
Periodic payment per vessel				$ 600,000
Consolidated Liquidity Requirement - Scenario One [Member] | $157.5 Million Lease Financing [Member]
Disclosure of detailed information about borrowings [line items]
Covenant liquidity requirement amount				25,000,000
Consolidated Liquidity Requirement - Scenario Two [Member] | $157.5 Million Lease Financing [Member]
Disclosure of detailed information about borrowings [line items]
Consolidated liquidity requirement per each owned vessel				500,000
Consolidated liquidity requirement per each chartered-in vessel				$ 250,000

Current and long-term debt - Un

Current and long-term debt - Unsecured senior notes due 2020 (Details) - USD ($)	Jun. 09, 2014	May 12, 2014	Jun. 09, 2014	Dec. 31, 2018	Dec. 31, 2017
Disclosure of detailed information about borrowings [line items]
Debt outstanding				$ 2,910,315,000	$ 2,767,193,000
Unsecured Senior Notes Due 2020 [Member]
Disclosure of detailed information about borrowings [line items]
Aggregate principal amount notes issued		$ 50,000,000
Borrowings interest rate		6.75%
Drawdowns	$ 3,750,000		$ 51,800,000
Minimum denominations		$ 25
Integral multiples		$ 25
Net borrowings limit		70.00%
Consolidated tangible net worth		$ 650,000,000
Debt outstanding				$ 53,750,000	$ 53,750,000
Borrowings, Redemption, Period One [Member] | Unsecured Senior Notes Due 2020 [Member]
Disclosure of detailed information about borrowings [line items]
Repurchased face amount percentage		100.00%
Borrowings, Redemption, Period Two [Member] | Unsecured Senior Notes Due 2020 [Member]
Disclosure of detailed information about borrowings [line items]
Repurchased face amount percentage		101.00%

Current and long-term debt -_14

Current and long-term debt - Convertible senior notes due 2019 (Details)	Dec. 05, 2018	Sep. 20, 2018	Jun. 06, 2018	Mar. 12, 2018	Dec. 13, 2017	Sep. 25, 2017	May 11, 2017	Feb. 23, 2017	Nov. 25, 2016	Sep. 15, 2016	May 11, 2016	Mar. 10, 2016	Nov. 24, 2015	Aug. 14, 2015	May 21, 2015	Mar. 13, 2015	Nov. 25, 2014	Aug. 22, 2014	Jul. 31, 2018USD ($)	May 31, 2018USD ($)$ / shares	Mar. 31, 2018business_day	May 31, 2016USD ($)	Mar. 31, 2016USD ($)	Jul. 31, 2015USD ($)	Jun. 30, 2014USD ($)business_day$ / sharesshares	Jul. 31, 2018USD ($)	Dec. 31, 2018USD ($)	Dec. 31, 2017USD ($)	Dec. 31, 2016USD ($)
Disclosure of detailed information about borrowings [line items]
Common stock repurchase amount																											$ 23,240,000	$ 0	$ 16,505,000
Debt outstanding																											2,910,315,000	2,767,193,000
Write-off of deferred financing fees																											13,212,000	2,467,000	14,479,000
Interest expense on borrowings																											145,871,000	86,703,000	63,858,000
Non-cash accretion																											$ 13,225,000	12,211,000	$ 11,562,000
Convertible Notes due 2019 [Member]
Disclosure of detailed information about borrowings [line items]
Aggregate principal amount notes issued																			$ 15,000,000	$ 188,500,000					$ 360,000,000	$ 15,000,000
Borrowings outstanding before debt exchange																			348,500,000							348,500,000
Purchasing option																									60,000,000
Drawdowns																									349,000,000
Payments for debt issue costs																									$ 11,000,000
Borrowings interest rate																									2.375%
Convertible conversion rate	0.01005396	0.01000515	0.00995277	0.00992056	0.00987742	0.00984450	0.00981588	0.00979316	0.00977039	0.00949345	0.00925323	0.00905311	0.00886790	0.00874349	0.00863738	0.00852216	0.00840184	0.00828556				0.8475	0.83105	1.08810	0.0082008		0.0100540
Initial conversion price (in USD per share) | $ / shares																									$ 121.94
Debt outstanding																			14,500,000	180,400,000					$ 298,700,000	14,500,000	$ 142,200,000	328,700,000
Carrying amount of equity component																									$ 61,300,000
Notes repurchased amount																						$ 5,000,000	$ 5,000,000	$ 1,500,000
Carrying amount of liability component reduction																						4,400,000	4,400,000	1,300,000
Carrying amount of equity component reduction																						200,000	300,000	400,000
Gain (loss) on extinguishment of borrowings before write off of debt issue costs																			(800,000)	(17,000,000)		400,000	600,000	46,273		(17,800,000)
Write-off of deferred financing fees																						100,000	100,000	$ 30,880
Repayments																						$ 4,200,000	$ 4,200,000			203,500,000
Interest expense on borrowings																											5,300,000	8,300,000
Non-cash accretion																											$ 8,300,000	$ 12,200,000
Convertible Notes due 2022 [Member]
Disclosure of detailed information about borrowings [line items]
Aggregate principal amount notes issued																			15,000,000	$ 188,500,000						15,000,000
Drawdowns																										203,500,000
Borrowings interest rate																											3.00%
Convertible conversion rate	0.02534	0.02521	0.02508																	0.025
Initial conversion price (in USD per share) | $ / shares																				$ 40
Debt outstanding																			12,200,000	$ 154,300,000						12,200,000	$ 171,500,000
Carrying amount of equity component																			$ 2,800,000	$ 34,200,000						$ 2,800,000
Interest expense on borrowings																											3,800,000
Non-cash accretion																											$ 4,900,000
Borrowings, Redemption, Period One [Member] | Convertible Notes due 2019 [Member]
Disclosure of detailed information about borrowings [line items]
Threshold consecutive or non-consecutive trading days																									15 days
Threshold consecutive trading days																									25 days
Common stock closing price as percentage of conversion price minimum																									130.00%
Repurchased face amount percentage																									100.00%
Borrowings, Redemption, Period One [Member] | Convertible Notes due 2022 [Member]
Disclosure of detailed information about borrowings [line items]
Threshold consecutive or non-consecutive trading days																					15 days
Threshold consecutive trading days																					25 days
Common stock closing price as percentage of conversion price minimum																					130.00%
Repurchased face amount percentage																					100.00%
Borrowings, Redemption, Period Two [Member] | Convertible Notes due 2019 [Member]
Disclosure of detailed information about borrowings [line items]
Threshold consecutive trading days																									5 days
Common stock closing price as percentage of conversion price minimum																									98.00%
Threshold trading days | business_day																									5
Repurchased face amount percentage																									100.00%
Borrowings, Redemption, Period Two [Member] | Convertible Notes due 2022 [Member]
Disclosure of detailed information about borrowings [line items]
Threshold consecutive trading days																					5 days
Common stock closing price as percentage of conversion price minimum																					98.00%
Threshold trading days | business_day																					5
2014 Stock Buyback Program - Purchase Through Proceeds From Issuance Of Convertible Borrowings [Member] | Common stock [Member] | Convertible Notes due 2019 [Member]
Disclosure of detailed information about borrowings [line items]
Common stock repurchase amount																									$ 95,000,000
Purchase of treasury shares (in shares) | shares																									1,012,760
Common stock, par value (in dollars per share) | $ / shares																									$ 93.80

Current and long-term debt -_15

Current and long-term debt - Schedule of dividends declared from issuance of the Convertible Notes (Details)	Dec. 05, 2018$ / shares	Sep. 20, 2018$ / shares	Jun. 06, 2018$ / shares	Mar. 12, 2018$ / shares	Dec. 13, 2017$ / shares	Sep. 25, 2017$ / shares	May 11, 2017$ / shares	Feb. 23, 2017$ / shares	Nov. 25, 2016$ / shares	Sep. 15, 2016$ / shares	May 11, 2016$ / shares	Mar. 10, 2016$ / shares	Nov. 24, 2015$ / shares	Aug. 14, 2015$ / shares	May 21, 2015$ / shares	Mar. 13, 2015$ / shares	Nov. 25, 2014$ / shares	Aug. 22, 2014$ / shares	May 31, 2018	May 31, 2016	Mar. 31, 2016	Jul. 31, 2015	Jun. 30, 2014	Dec. 31, 2018
Convertible Notes due 2019 [Member]
Disclosure of detailed information about borrowings [line items]
Dividends per share (in USD per share)	$ 0.1	$ 0.1	$ 0.1	$ 0.1	$ 0.1	$ 0.1	$ 0.1	$ 0.1	$ 1.25	$ 1.25	$ 1.25	$ 1.25	$ 1.25	$ 1.25	$ 1.25	$ 1.2	$ 1.2	$ 1
Convertible conversion rate	0.01005396	0.01000515	0.00995277	0.00992056	0.00987742	0.00984450	0.00981588	0.00979316	0.00977039	0.00949345	0.00925323	0.00905311	0.00886790	0.00874349	0.00863738	0.00852216	0.00840184	0.00828556		0.8475	0.83105	1.08810	0.0082008	0.0100540
Convertible Notes due 2022 [Member]
Disclosure of detailed information about borrowings [line items]
Dividends per share (in USD per share)	$ 0.1	$ 0.1	$ 0.1
Convertible conversion rate	0.02534	0.02521	0.02508																0.025

Current and long-term debt -_16

Current and long-term debt - Convertible senior notes due 2022 (Details)	Dec. 05, 2018	Sep. 20, 2018	Jun. 06, 2018	Mar. 12, 2018	Dec. 13, 2017	Sep. 25, 2017	May 11, 2017	Feb. 23, 2017	Nov. 25, 2016	Sep. 15, 2016	May 11, 2016	Mar. 10, 2016	Nov. 24, 2015	Aug. 14, 2015	May 21, 2015	Mar. 13, 2015	Nov. 25, 2014	Aug. 22, 2014	May 31, 2018USD ($)$ / shares	Mar. 31, 2018business_day	May 31, 2016	Mar. 31, 2016	Jul. 31, 2015	Jun. 30, 2014USD ($)business_day$ / shares	Dec. 31, 2018USD ($)	Dec. 31, 2017USD ($)	Dec. 31, 2016USD ($)	Jul. 31, 2018USD ($)
Disclosure of detailed information about borrowings [line items]
Borrowings																									$ 2,910,315,000	$ 2,767,193,000
Interest expense on borrowings																									145,871,000	86,703,000	$ 63,858,000
Non-cash accretion																									$ 13,225,000	12,211,000	$ 11,562,000
Convertible Notes due 2019 [Member]
Disclosure of detailed information about borrowings [line items]
Aggregate principal amount notes issued																			$ 188,500,000					$ 360,000,000				$ 15,000,000
Convertible conversion rate	0.01005396	0.01000515	0.00995277	0.00992056	0.00987742	0.00984450	0.00981588	0.00979316	0.00977039	0.00949345	0.00925323	0.00905311	0.00886790	0.00874349	0.00863738	0.00852216	0.00840184	0.00828556			0.8475	0.83105	1.08810	0.0082008	0.0100540
Initial conversion price (in USD per share) | $ / shares																								$ 121.94
Borrowings																			180,400,000					$ 298,700,000	$ 142,200,000	328,700,000		14,500,000
Carrying amount of equity component																								$ 61,300,000
Interest expense on borrowings																									5,300,000	8,300,000
Non-cash accretion																									8,300,000	$ 12,200,000
Convertible Notes due 2022 [Member]
Disclosure of detailed information about borrowings [line items]
Aggregate principal amount notes issued																			$ 188,500,000									15,000,000
Convertible conversion rate	0.02534	0.02521	0.02508																0.025
Initial conversion price (in USD per share) | $ / shares																			$ 40
Borrowings																			$ 154,300,000						171,500,000			12,200,000
Carrying amount of equity component																			$ 34,200,000									$ 2,800,000
Interest expense on borrowings																									3,800,000
Non-cash accretion																									$ 4,900,000
Borrowings, Redemption, Period One [Member] | Convertible Notes due 2019 [Member]
Disclosure of detailed information about borrowings [line items]
Threshold consecutive or non-consecutive trading days																								15 days
Threshold consecutive trading days																								25 days
Common stock closing price as percentage of conversion price minimum																								130.00%
Repurchased face amount percentage																								100.00%
Borrowings, Redemption, Period One [Member] | Convertible Notes due 2022 [Member]
Disclosure of detailed information about borrowings [line items]
Threshold consecutive or non-consecutive trading days																				15 days
Threshold consecutive trading days																				25 days
Common stock closing price as percentage of conversion price minimum																				130.00%
Repurchased face amount percentage																				100.00%
Borrowings, Redemption, Period Two [Member] | Convertible Notes due 2019 [Member]
Disclosure of detailed information about borrowings [line items]
Threshold consecutive trading days																								5 days
Common stock closing price as percentage of conversion price minimum																								98.00%
Threshold trading days | business_day																								5
Repurchased face amount percentage																								100.00%
Borrowings, Redemption, Period Two [Member] | Convertible Notes due 2022 [Member]
Disclosure of detailed information about borrowings [line items]
Threshold consecutive trading days																				5 days
Common stock closing price as percentage of conversion price minimum																				98.00%
Threshold trading days | business_day																				5

Current and long-term debt -_17

Current and long-term debt - Unsecured senior notes due 2019 (Details) - USD ($)	Mar. 18, 2019	Apr. 30, 2017	Mar. 31, 2017	Dec. 31, 2018	Dec. 31, 2017
Disclosure of detailed information about borrowings [line items]
Debt outstanding				$ 2,910,315,000	$ 2,767,193,000
Unsecured Senior Notes Due 2019 [Member]
Disclosure of detailed information about borrowings [line items]
Aggregate principal amount notes issued			$ 50,000,000
Borrowings interest rate			8.25%
Drawdowns		$ 7,500,000	$ 55,300,000
Minimum denominations			25
Integral multiples			$ 25
Net borrowings limit			70.00%
Consolidated tangible net worth			$ 650,000,000
Debt outstanding				$ 57,500,000
Borrowings, Redemption, Period One [Member] | Unsecured Senior Notes Due 2019 [Member]
Disclosure of detailed information about borrowings [line items]
Repurchased face amount percentage			100.00%
Borrowings, Redemption, Period Two [Member] | Unsecured Senior Notes Due 2019 [Member]
Disclosure of detailed information about borrowings [line items]
Repurchased face amount percentage			101.00%
Debt transactions [Member] | Unsecured Senior Notes Due 2019 [Member]
Disclosure of detailed information about borrowings [line items]
Repurchased face amount percentage	100.00%

Derivative financial instrume_3

Derivative financial instruments - Narrative (Details) - Vessels [member] - Densa Crocodile [Member] - LR2 [Member]	1 Months Ended
	Feb. 28, 2015USD ($)
Disclosure of detailed information about financial instruments [line items]
Term of lease	1 year
Lease payments, daily rate	$ 21,050
Lease payments, extension, daily rate	$ 22,600
Profit and loss agreement [member]
Disclosure of detailed information about financial instruments [line items]
Percentage of profit and loss sharing in a derivative arrangement	50.00%

Derivative financial instrume_4

Derivative financial instruments - Schedule of Fair Value Adjustments (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Disclosure of detailed information about financial instruments [line items]
Realized gain recognised in profit and loss	$ 0	$ (116)	$ 0
Unrealized gain (loss) recognised in profit and loss	$ 0	0	1,371
Unrealized gain on derivative financial instruments		0	0
Profit and loss agreement [member] | Profit and loss agreement [member]
Disclosure of detailed information about financial instruments [line items]
Realized gain recognised in profit and loss		(116)	0
Unrealized gain (loss) recognised in profit and loss		0	1,371
Unrealized gain on derivative financial instruments		$ 0	$ 0

Segment reporting - Information

Segment reporting - Information About Reportable Segments (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Disclosure of operating segments [line items]
Vessel revenue	$ 585,047	$ 512,732	$ 522,747
Vessel operating costs	(280,460)	(231,227)	(187,120)
Voyage expenses	(5,146)	(7,733)	(1,578)
Charterhire	(59,632)	(75,750)	(78,862)
Depreciation	(176,723)	(141,418)	(121,461)
General and administrative expenses	(52,272)	(47,511)	(54,899)
Loss on sales of vessels	0	(23,345)	(2,078)
Merger transaction related costs	(272)	(36,114)	0
Bargain purchase gain	0	5,417	0
Financial expenses	(186,628)	(116,240)	(104,048)
Loss on exchange of convertible notes	(17,838)	0	0
Realized loss on derivative financial instruments	0	(116)	0
Unrealized gain on derivative financial instruments	0	0	1,371
Financial income	4,458	1,538	1,213
Other expenses, net	(605)	1,527	(188)
Net loss	(190,071)	(158,240)	(24,903)
Reportable segments [member]
Disclosure of operating segments [line items]
Vessel revenue	585,047	512,732	521,697
Vessel operating costs	(280,460)	(231,227)	(187,120)
Voyage expenses	(5,146)	(7,733)	(1,578)
Charterhire	(59,632)	(75,750)	(78,862)
Depreciation	(176,723)	(141,418)	(121,461)
General and administrative expenses	(11,929)	(10,023)	(7,885)
Loss on sales of vessels		(23,345)	(2,078)
Merger transaction related costs	0	0
Bargain purchase gain		0
Financial expenses	0	0	0
Loss on exchange of convertible notes	0
Realized loss on derivative financial instruments		(116)
Unrealized gain on derivative financial instruments			1,371
Financial income	664	593	90
Other expenses, net	0	1,876	(9)
Net loss	51,821	25,589	124,165
Reportable segments [member] | LR1/Panamax [Member]
Disclosure of operating segments [line items]
Vessel revenue	47,722	22,573	5,843
Vessel operating costs	(28,942)	(12,561)	(33)
Voyage expenses	(591)	(1,018)	(19)
Charterhire	0	(2,230)	(5,657)
Depreciation	(19,290)	(7,828)	0
General and administrative expenses	(1,173)	(479)	(7)
Loss on sales of vessels		0	0
Merger transaction related costs	0	0
Bargain purchase gain		0
Financial expenses	0	0	0
Loss on exchange of convertible notes	0
Realized loss on derivative financial instruments		0
Unrealized gain on derivative financial instruments			0
Financial income	111	26	0
Other expenses, net	0	0	0
Net loss	(2,163)	(1,517)	127
Reportable segments [member] | Handymax [Member]
Disclosure of operating segments [line items]
Vessel revenue	95,188	95,098	85,578
Vessel operating costs	(48,249)	(50,145)	(32,817)
Voyage expenses	(440)	(3,087)	(479)
Charterhire	(19,223)	(24,560)	(26,292)
Depreciation	(18,190)	(18,159)	(18,014)
General and administrative expenses	(2,195)	(2,170)	(1,410)
Loss on sales of vessels		0	0
Merger transaction related costs	0	0
Bargain purchase gain		0
Financial expenses	0	0	0
Loss on exchange of convertible notes	0
Realized loss on derivative financial instruments		0
Unrealized gain on derivative financial instruments			0
Financial income	16	214	6
Other expenses, net	0	1,876	0
Net loss	6,907	(933)	6,572
Reportable segments [member] | LR2 [Member]
Disclosure of operating segments [line items]
Vessel revenue	203,414	157,123	165,256
Vessel operating costs	(91,975)	(67,254)	(50,028)
Voyage expenses	(3,225)	(2,642)	(375)
Charterhire	(7,883)	(6,258)	(16,025)
Depreciation	(72,610)	(54,922)	(41,900)
General and administrative expenses	(3,790)	(2,805)	(1,983)
Loss on sales of vessels		0	0
Merger transaction related costs	0	0
Bargain purchase gain		0
Financial expenses	0	0	0
Loss on exchange of convertible notes	0
Realized loss on derivative financial instruments		(116)
Unrealized gain on derivative financial instruments			1,371
Financial income	22	15	37
Other expenses, net	0	0	0
Net loss	23,953	23,141	56,353
Reportable segments [member] | MR [Member]
Disclosure of operating segments [line items]
Vessel revenue	238,723	237,938	265,020
Vessel operating costs	(111,294)	(101,267)	(104,242)
Voyage expenses	(890)	(986)	(705)
Charterhire	(32,526)	(42,702)	(30,888)
Depreciation	(66,633)	(60,509)	(61,547)
General and administrative expenses	(4,771)	(4,569)	(4,485)
Loss on sales of vessels		(23,345)	(2,078)
Merger transaction related costs	0	0
Bargain purchase gain		0
Financial expenses	0	0	0
Loss on exchange of convertible notes	0
Realized loss on derivative financial instruments		0
Unrealized gain on derivative financial instruments			0
Financial income	515	338	47
Other expenses, net	0	0	(9)
Net loss	23,124	4,898	61,113
Corporate and eliminations [member]
Disclosure of operating segments [line items]
Vessel revenue	0	0	1,050
Vessel operating costs	0	0	0
Voyage expenses	0	0	0
Charterhire	0	0	0
Depreciation	0	0	0
General and administrative expenses	(40,343)	(37,488)	(47,014)
Loss on sales of vessels		0	0
Merger transaction related costs	(272)	(36,114)
Bargain purchase gain		5,417
Financial expenses	(186,628)	(116,240)	(104,048)
Loss on exchange of convertible notes	(17,838)
Realized loss on derivative financial instruments		0
Unrealized gain on derivative financial instruments			0
Financial income	3,794	945	1,123
Other expenses, net	(605)	(349)	(179)
Net loss	$ (241,892)	$ (183,829)	$ (149,068)

Segment reporting - Revenue fro

Segment reporting - Revenue from Major Customers (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
MR [Member] | Other related parties [member] | Scorpio MR Pool Limited [Member]
Disclosure of major customers [line items]
Pool revenue	$ 225,181	$ 217,141	$ 248,974
LR2 [Member] | Other related parties [member] | Scorpio LR2 Pool Limited [Member]
Disclosure of major customers [line items]
Pool revenue	188,890	136,514	156,503
Handymax [Member] | Other related parties [member] | Scorpio Handymax Tanker Pool Limited [Member]
Disclosure of major customers [line items]
Pool revenue	82,782	78,510	73,683
Panamax [Member] | Other related parties [member] | Scorpio Panamax Tanker Pool Limited [Member]
Disclosure of major customers [line items]
Pool revenue	0	1,515	5,843
MR, LR2, Handymax and Panamax
Disclosure of major customers [line items]
Pool revenue	$ 496,853	$ 433,680	$ 485,003

Common shares - Narrative (Deta

Common shares - Narrative (Details)	Sep. 01, 2017warrantsharesvessel$ / shares	Jun. 14, 2017shares	May 30, 2017USD ($)$ / sharesshares	Dec. 31, 2018USD ($)warrantshares$ / shares	Oct. 31, 2018USD ($)$ / sharesshares	Sep. 30, 2018USD ($)shares	Mar. 31, 2018USD ($)shares	Dec. 31, 2017USD ($)shares$ / shares	Jun. 30, 2017shares	May 31, 2017USD ($)shares$ / shares	Dec. 31, 2018USD ($)warrantshares$ / shares	Dec. 31, 2017USD ($)shares$ / shares	Dec. 31, 2016USD ($)shares	Jun. 30, 2018$ / sharesshares	Feb. 28, 2018$ / sharesshares	Oct. 31, 2017$ / sharesshares	Sep. 30, 2017shares	Apr. 30, 2013shares
Disclosure of classes of share capital [line items]
Issuance of shares | $											$ 337,000,000	$ 303,500,000	$ 0
Common stock, par value (in dollars per share) | $ / shares				$ 0.01							$ 0.01
2013 Equity Incentive Plan [Member]
Disclosure of classes of share capital [line items]
Shares reserved for issuance (in shares)																		500,000
Maximum years grants are exercisable											10 years
Restricted Stock [Member]
Disclosure of classes of share capital [line items]
Number of shares, granted (in shares)											1,885,633	1,092,280
Weighted average grant date fair value, granted (in USD per share) | $											$ 20.28	$ 30.90
Restricted Stock [Member] | 2013 Equity Incentive Plan [Member]
Disclosure of classes of share capital [line items]
Remaining shares available for issuance (in shares)				226,107							226,107
Restricted Stock [Member] | 2013 Equity Incentive Plan [Member] | Employees [Member]
Disclosure of classes of share capital [line items]
Number of shares, granted (in shares)				1,103,248		198,141	500,245	997,380
Restricted Stock [Member] | 2013 Equity Incentive Plan [Member] | Directors [Member]
Disclosure of classes of share capital [line items]
Number of shares, granted (in shares)				60,000		12,000	12,000	60,000
Restricted Stock [Member] | 2013 Equity Incentive Plan [Member] | Directors [Member] | First vesting percentage [Member]
Disclosure of classes of share capital [line items]
Vested shares percentage				33.00%		33.00%	33.00%	33.00%
Restricted Stock [Member] | 2013 Equity Incentive Plan [Member] | Directors [Member] | Second vesting percentage [Member]
Disclosure of classes of share capital [line items]
Vested shares percentage				33.00%		33.00%	33.00%	33.00%
Restricted Stock [Member] | 2013 Equity Incentive Plan [Member] | Directors [Member] | Third vesting percentage [Member]
Disclosure of classes of share capital [line items]
Vested shares percentage				33.00%		33.00%	33.00%	33.00%
Restricted Stock [Member] | 2013 Equity Incentive Plan [Member] | Employees and Directors [Member]
Disclosure of classes of share capital [line items]
Weighted average grant date fair value, granted (in USD per share) | $				$ 19.55		$ 19.75	$ 22.15
Restricted Stock [Member] | 2013 Equity Incentive Plan [Member] | SSH Employees [Member]
Disclosure of classes of share capital [line items]
Number of shares, granted (in shares)								34,900
Restricted Stock [Member] | 2013 Equity Incentive Plan [Member] | SSH Employees [Member] | First vesting percentage [Member]
Disclosure of classes of share capital [line items]
Vested shares percentage				33.00%		33.00%		33.00%
Restricted Stock [Member] | 2013 Equity Incentive Plan [Member] | SSH Employees [Member] | Second vesting percentage [Member]
Disclosure of classes of share capital [line items]
Vested shares percentage				33.00%		33.00%		33.00%
Restricted Stock [Member] | 2013 Equity Incentive Plan [Member] | SSH Employees [Member] | Third vesting percentage [Member]
Disclosure of classes of share capital [line items]
Vested shares percentage				33.00%		33.00%		33.00%
Restricted Stock [Member] | 2013 Equity Incentive Plan [Member] | Employees, Directors and SSH Employees [Member]
Disclosure of classes of share capital [line items]
Weighted average grant date fair value, granted (in USD per share) | $								$ 30.90
Common stock [Member]
Disclosure of classes of share capital [line items]
Common stock, shares issued (in shares)				51,397,562				32,650,755			51,397,562	32,650,755
Common stock, par value (in dollars per share) | $ / shares				$ 0.01				$ 0.01			$ 0.01	$ 0.01
Common stock [Member] | 2013 Equity Incentive Plan [Member]
Disclosure of classes of share capital [line items]
Shares reserved for issuance (in shares)				1,383,248							1,383,248		1,286,971	210,140	512,244	950,180
Common stock, par value (in dollars per share) | $ / shares				$ 0.01							$ 0.01			$ 0.01	$ 0.01	$ 0.01
Other related parties [member] | Scorpio Services Holding Limited (SSH) [Member] | Restricted Stock [Member]
Disclosure of classes of share capital [line items]
Number of shares, granted (in shares)											114,400	114,400	79,500
NPTI [Member]
Disclosure of classes of share capital [line items]
Common stock, shares issued (in shares)																	5,500,000
Price per share (in USD per share) | $ / shares								$ 40.20				$ 40.20
NPTI [Member] | Common stock [Member]
Disclosure of classes of share capital [line items]
Common stock, shares issued (in shares)			5,000,000
Price per share (in USD per share) | $ / shares			$ 40
Issuance of shares | $			$ 188,700,000
Number of instruments or interests issued or issuable	5,499,999									5,500,000							5,500,000
NPTI [Member] | Warrant [Member]
Disclosure of classes of share capital [line items]
Number of instruments or interests issued or issuable | warrant	150,000			200,000							200,000
Exercise price (in USD per warrant) | $ / shares	$ 0.10			$ 0.10							$ 0.10
NPTI Vessel Acquisition [Member] | Common stock [Member]
Disclosure of classes of share capital [line items]
Shares issued upon exercise of warrants (in shares)		22,222							22,222
NPTI September Closing [Member] | Common stock [Member]
Disclosure of classes of share capital [line items]
Number of instruments or interests issued or issuable	5,499,999
Shares issued upon exercise of warrants (in shares)	127,778
NPTI September Closing [Member] | Warrant [Member]
Disclosure of classes of share capital [line items]
Exercise price (in USD per warrant) | $ / shares	$ 0.10
Vessels [member] | NPTI September Closing [Member]
Disclosure of classes of share capital [line items]
Number of vessels acquired | vessel	23
Public Offering [Member] | Common stock [Member]
Disclosure of classes of share capital [line items]
Common stock, shares issued (in shares)					18,200,000			3,450,000				3,450,000
Price per share (in USD per share) | $ / shares					$ 18.50			$ 30				$ 30
Issuance of shares | $					$ 319,600,000			$ 99,600,000
Public Offering [Member] | Other related parties [member] | Scorpio Bulkers Inc. [Member] | Common stock [Member]
Disclosure of classes of share capital [line items]
Common stock, shares issued (in shares)					5,400,000
Public Offering [Member] | Other related parties [member] | Scorpio Services Holding Limited (SSH) [Member] | Common stock [Member]
Disclosure of classes of share capital [line items]
Common stock, shares issued (in shares)					540,000			670,000				670,000
Public Offering [Member] | NPTI [Member] | Common stock [Member]
Disclosure of classes of share capital [line items]
Common stock, shares issued (in shares)										5,000,000
Price per share (in USD per share) | $ / shares										$ 40
Issuance of shares | $										$ 188,700,000

Common shares - Vesting schedul

Common shares - Vesting schedule of restricted stock (Details) - Employees [Member] - 2013 Equity Incentive Plan [Member] - Restricted Stock [Member] - shares	1 Months Ended
	Mar. 31, 2018	Dec. 31, 2017
Disclosure of terms and conditions of share-based payment arrangement [line items]
Vesting shares (in shares)	500,245	997,380
First vesting period [Member]
Disclosure of terms and conditions of share-based payment arrangement [line items]
Vesting shares (in shares)	123,518	36,043
Second vesting period [Member]
Disclosure of terms and conditions of share-based payment arrangement [line items]
Vesting shares (in shares)	21,750	67,026
Third vesting period [Member]
Disclosure of terms and conditions of share-based payment arrangement [line items]
Vesting shares (in shares)	21,479	125,857
Fourth vesting period [Member]
Disclosure of terms and conditions of share-based payment arrangement [line items]
Vesting shares (in shares)	123,518	139,576
Fifth vesting period [Member]
Disclosure of terms and conditions of share-based payment arrangement [line items]
Vesting shares (in shares)	21,750	67,026
Sixth vesting period [Member]
Disclosure of terms and conditions of share-based payment arrangement [line items]
Vesting shares (in shares)	21,480	125,858
Seventh vesting period [Member]
Disclosure of terms and conditions of share-based payment arrangement [line items]
Vesting shares (in shares)	123,519	139,577
Eighth vesting period [Member]
Disclosure of terms and conditions of share-based payment arrangement [line items]
Vesting shares (in shares)	21,751	67,026
Ninth vesting period [Member]
Disclosure of terms and conditions of share-based payment arrangement [line items]
Vesting shares (in shares)	21,480	125,858
Tenth vesting period [Member]
Disclosure of terms and conditions of share-based payment arrangement [line items]
Vesting shares (in shares)		103,533

Common shares - Summary of rest

Common shares - Summary of restricted stock awards (Details) - Restricted Stock [Member]	12 Months Ended
	Dec. 31, 2018USD ($)shares	Dec. 31, 2017USD ($)shares
Reconciliation of Share-based Payment Awards in Period [Roll Forward]
Number of shares, outstanding and non-vested (in shares) | shares	1,925,441	1,261,358
Number of shares, granted (in shares) | shares	1,885,633	1,092,280
Number of shares, vested (in shares) | shares	(447,380)	(423,697)
Number of shares, forfeited (in shares) | shares	(3,807)	(4,500)
Number of shares, outstanding and non-vested (in shares) | shares	3,359,887	1,925,441
Weighted average grant date fair value, outstanding and non-vested (in USD per share) | $	$ 53.39	$ 85.21
Weighted average grant date fair value, granted (in USD per share) | $	20.28	30.90
Weighted average grant date fair value, vested (in USD per share) | $	89.13	89.92
Weighted average grant date fair value, forfeited (in USD per share) | $	52.59	75.87
Weighted average grant date fair value, outstanding and non-vested (in USD per share) | $	$ 30.05	$ 53.39

Common shares - Stock compensat

Common shares - Stock compensation expense (Details) - Restricted Stock [Member] $ in Thousands	Dec. 31, 2018USD ($)
Disclosure of terms and conditions of share-based payment arrangement [line items]
Expected stock compensation expense, 2019	$ 25,833
Expected stock compensation expense, 2020	19,093
Expected stock compensation expense, 2021	11,584
Expected stock compensation expense, 2022	4,858
Expected stock compensation expense, 2023	1,235
Total expected stock compensation expense	62,603
Employees [Member]
Disclosure of terms and conditions of share-based payment arrangement [line items]
Expected stock compensation expense, 2019	24,440
Expected stock compensation expense, 2020	18,554
Expected stock compensation expense, 2021	11,465
Expected stock compensation expense, 2022	4,858
Expected stock compensation expense, 2023	1,235
Total expected stock compensation expense	60,552
Directors [Member]
Disclosure of terms and conditions of share-based payment arrangement [line items]
Expected stock compensation expense, 2019	1,393
Expected stock compensation expense, 2020	539
Expected stock compensation expense, 2021	119
Expected stock compensation expense, 2022	0
Expected stock compensation expense, 2023	0
Total expected stock compensation expense	$ 2,051

Common shares - Dividend paymen

Common shares - Dividend payments (Details) - $ / shares	Dec. 13, 2018	Sep. 27, 2018	Jun. 28, 2018	Mar. 27, 2018	Dec. 28, 2017	Sep. 29, 2017	Jun. 14, 2017	Mar. 30, 2017	Dec. 22, 2016	Sep. 29, 2016	Jun. 24, 2016	Mar. 30, 2016	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Share-Based Payment Arrangements [Abstract]
Dividends paid per share (in USD per share)	$ 0.1	$ 0.1	$ 0.1	$ 0.1	$ 0.1	$ 0.1	$ 0.1	$ 0.1	$ 1.25	$ 1.25	$ 1.25	$ 1.25	$ 0.40	$ 0.40	$ 5

Common shares - Stock and secur

Common shares - Stock and securities repurchase program (Details) - USD ($) $ / shares in Units, $ in Millions	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	May 31, 2015
Disclosure of classes of share capital [line items]
Common stock, par value (in dollars per share)	$ 0.01
Common stock and Preference shares [member]
Disclosure of classes of share capital [line items]
Number of shares authorized (in shares)	175,000,000
Common stock [Member]
Disclosure of classes of share capital [line items]
Common shares held in treasury	6,349,294	4,998,059
Number of shares authorized (in shares)	150,000,000	40,000,000
Common stock, par value (in dollars per share)	$ 0.01	$ 0.01
Common stock, shares outstanding (in shares)	51,397,562	32,650,755
Preference shares [member]
Disclosure of classes of share capital [line items]
Number of shares authorized (in shares)	25,000,000
Common stock, par value (in dollars per share)	$ 0.01
2015 Securities Repurchase Program [Member] | Common stock [Member]
Disclosure of classes of share capital [line items]
Authorized amount of share repurchase			$ 250
Entity's shares acquired (in shares)	1,351,235
Common stock, par value (in dollars per share)	$ 17.20
Stock buyback program, remaining authorized amount	$ 123.8

Related party transactions - Na

Related party transactions - Narrative (Details)	Jan. 01, 2018USD ($)	Sep. 28, 2016	Dec. 31, 2018USD ($)vessel	Dec. 31, 2017USD ($)vessel	Dec. 31, 2016USD ($)	Dec. 31, 2017tanker
Scorpio Services Holding Limited (SSH) [Member] | Other related parties [member]
Disclosure of transactions between related parties [line items]
Prior fee payable upon any future vessel sale or purchase		1.00%
Reimbursement of expenses			$ 46,535	$ 500,000	$ 600,000
Scorpio Commercial Management SAM (SCM) [Member] | Other related parties [member]
Disclosure of transactions between related parties [line items]
Termination fee				200,000	2,700,000
SSM [Member] | Other related parties [member]
Disclosure of transactions between related parties [line items]
Fixed annual technical management fee	$ 175,000			250,000
Termination fee				200,000	2,500,000
Reimbursement of expenses			0	0	0
Agreement supervision expense				$ 700,000
Construction in progress [member]
Disclosure of transactions between related parties [line items]
Number of vessels				2		2
STI Esles II and STI Jardins [Member] | Scorpio Services Holding Limited (SSH) [Member] | Other related parties [member]
Disclosure of transactions between related parties [line items]
Aggregate management fee			$ 700,000
STI Galata, STI Bosphorus, STI Leblon, STI La Boca, STI San Telmo And STI Donald C. Trauscht [Member] | Scorpio Services Holding Limited (SSH) [Member] | Other related parties [member]
Disclosure of transactions between related parties [line items]
Aggregate management fee				$ 2,200,000
STI Lexington, STI Mythos, STI Chelsea, STI Olivia, and STI Powai [Member] | Scorpio Services Holding Limited (SSH) [Member] | Other related parties [member]
Disclosure of transactions between related parties [line items]
Aggregate management fee					1,700,000
STI Lombard [Member] | Scorpio Services Holding Limited (SSH) [Member] | Other related parties [member]
Disclosure of transactions between related parties [line items]
Aggregate management fee					$ 600,000
MR [Member] | Construction in progress [member]
Disclosure of transactions between related parties [line items]
Number of vessels | vessel				2
MR [Member] | Construction in progress [member] | SSM [Member] | Other related parties [member]
Disclosure of transactions between related parties [line items]
Number of vessels | vessel			8

Related party transactions - Re

Related party transactions - Related Party Statement of Income or Loss (Details)	Sep. 01, 2018	Dec. 31, 2018USD ($)shares	Dec. 31, 2017USD ($)shares	Dec. 31, 2016USD ($)shares
Disclosure of transactions between related parties [line items]
Voyage expenses		$ (1,290,000)	$ (1,786,000)	$ (1,128,000)
Vessel operating costs		(34,272,000)	(27,601,000)	(22,526,000)
Administrative expenses		(12,475,000)	(10,744,000)	(9,462,000)
Restricted stock amortization		$ 25,547,000	$ 22,385,000	30,207,000
Restricted Stock [Member]
Disclosure of transactions between related parties [line items]
Issuance of restricted stock, net of forfeitures (in shares) | shares		1,885,633	1,092,280
MR [Member]
Disclosure of transactions between related parties [line items]
Fees charged by pool manager, per vessel, per day when out of pools		$ 300
LR2/Aframax [Member]
Disclosure of transactions between related parties [line items]
Fees charged by pool manager, per vessel, per day when out of pools		250
Handymax [Member]
Disclosure of transactions between related parties [line items]
Fees charged by pool manager, per vessel, per day when out of pools		300
LR1/Panamax [Member]
Disclosure of transactions between related parties [line items]
Fees charged by pool manager, per vessel, per day when out of pools		250
Other related parties [member] | Scorpio MR Pool Limited [Member] | MR [Member]
Disclosure of transactions between related parties [line items]
Pool revenue		225,181,000	$ 217,141,000	248,974,000
Other related parties [member] | Scorpio LR2 Pool Limited [Member] | LR2 [Member]
Disclosure of transactions between related parties [line items]
Pool revenue		188,890,000	136,514,000	156,503,000
Other related parties [member] | Scorpio Handymax Tanker Pool Limited [Member] | Handymax [Member]
Disclosure of transactions between related parties [line items]
Pool revenue		82,782,000	78,510,000	73,683,000
Other related parties [member] | Scorpio LR1 Pool Limited [Member] | LR1 [Member]
Disclosure of transactions between related parties [line items]
Pool revenue		46,823,000	13,895,000	0
Other related parties [member] | Scorpio Panamax Tanker Pool Limited [Member] | Panamax [Member]
Disclosure of transactions between related parties [line items]
Pool revenue		0	1,515,000	5,843,000
Other related parties [member] | Scorpio Aframax Pool Limited [Member] | Aframax [Member]
Disclosure of transactions between related parties [line items]
Pool revenue		$ 0	1,170,000	0
Other related parties [member] | Scorpio Commercial Management SAM (SCM) [Member]
Disclosure of transactions between related parties [line items]
Commission on gross revenue per charter fixture when included in pools, rercent		1.50%
Commission on gross revenue, per charter fixture	0.85%
Commission on gross revenue per charter fixture when excluded in pools, rercent		1.25%
Other related parties [member] | Scorpio Commercial Management SAM (SCM) [Member] | MR [Member]
Disclosure of transactions between related parties [line items]
Fees charged by pool manager, per vessel, per day when in pools		$ 325
Other related parties [member] | Scorpio Commercial Management SAM (SCM) [Member] | LR2 [Member]
Disclosure of transactions between related parties [line items]
Fees charged by pool manager, per vessel, per day when in pools		250
Other related parties [member] | Scorpio Commercial Management SAM (SCM) [Member] | Handymax [Member]
Disclosure of transactions between related parties [line items]
Fees charged by pool manager, per vessel, per day when in pools		325
Other related parties [member] | Scorpio Commercial Management SAM (SCM) [Member] | Aframax [Member]
Disclosure of transactions between related parties [line items]
Fees charged by pool manager, per vessel, per day when in pools		300
Other related parties [member] | Scorpio Commercial Management SAM (SCM) [Member] | LR1/Panamax [Member]
Disclosure of transactions between related parties [line items]
Fees charged by pool manager, per vessel, per day when in pools		300
Other related parties [member] | SSM [Member]
Disclosure of transactions between related parties [line items]
Technical management fee		30,100,000	22,900,000	19,500,000
Reimbursement of expenses		0	0	0
Other related parties [member] | Insurance Broker [Member]
Disclosure of transactions between related parties [line items]
Insurance related expenses		2,600,000	4,300,000	3,000,000
Other related parties [member] | Port Agent [Member]
Disclosure of transactions between related parties [line items]
Voyage expenses		(25,747)	0	0
Vessel operating costs		(1,600,000)	(400,000)
Other related parties [member] | Scorpio Services Holding Limited (SSH) [Member]
Disclosure of transactions between related parties [line items]
Administrative fees charged by SSH		11,100,000	9,000,000	7,300,000
Reimbursement of expenses		46,535	500,000	600,000
Other related parties [member] | Scorpio Services Holding Limited (SSH) [Member] | Restricted Stock [Member]
Disclosure of transactions between related parties [line items]
Restricted stock amortization		$ 1,300,000	$ 1,200,000	$ 1,600,000
Issuance of restricted stock, net of forfeitures (in shares) | shares		114,400	114,400	79,500

Related party transactions - _2

Related party transactions - Related Party Balance Sheet (Details) - USD ($) $ in Thousands	Sep. 01, 2018	Dec. 31, 2018	Dec. 31, 2017
Other related parties [member]
Disclosure of transactions between related parties [line items]
Accounts receivable and prepaid expenses		$ 68,689	$ 44,880
Scorpio Group Pools [Member] | Other related parties [member]
Disclosure of transactions between related parties [line items]
Accounts receivable and prepaid expenses		66,178	44,880
Working capital contributions to Scorpio Group Pools		42,973	41,401
Accounts payable and accrued expenses		66	462
Working capital contributions, related parties		22,900	25,700
SSM [Member] | Other related parties [member]
Disclosure of transactions between related parties [line items]
Accounts receivable and prepaid expenses		2,461	6,391
Accounts payable and accrued expenses		832	766
Scorpio Commercial Management SAM (SCM) [Member] | Other related parties [member]
Disclosure of transactions between related parties [line items]
Accounts receivable and prepaid expenses		2,511	0
Accounts payable and accrued expenses		389	191
Commission on gross revenue, per charter fixture	0.85%
Port Agent [Member] | Other related parties [member]
Disclosure of transactions between related parties [line items]
Accounts payable and accrued expenses		459	95
Scorpio Services Holding Limited (SSH) [Member] | Other related parties [member]
Disclosure of transactions between related parties [line items]
Accounts payable and accrued expenses		409	190
Insurance Broker [Member] | Other related parties [member]
Disclosure of transactions between related parties [line items]
Accounts receivable and prepaid expenses		0	2,428
Accounts payable and accrued expenses		$ 0	2,190
Scorpio Handymax Tanker Pool Limited [Member]
Disclosure of transactions between related parties [line items]
Working capital repayment period upon vessel's exit from each pool		6 months
Scorpio Handymax Tanker Pool Limited [Member] | Other related parties [member]
Disclosure of transactions between related parties [line items]
Accounts receivable and prepaid expenses		$ 4,559	6,037
Working capital contributions to Scorpio Group Pools		$ 4,923	$ 6,751
Working capital repayment period upon vessel's exit from each pool		6 months

Related party transactions - Ke

Related party transactions - Key Management Renumeration (Details) $ in Thousands	12 Months Ended
	Dec. 31, 2018USD ($)payment	Dec. 31, 2017USD ($)	Dec. 31, 2016USD ($)
Related Party [Abstract]
Short-term employee benefits (salaries)	$ 5,436	$ 6,614	$ 8,786
Share-based compensation	20,316	19,113	25,575
Total	$ 25,752	$ 25,727	$ 34,361
Post-employment benefits, number of payments | payment	1
Post-employment benefits, number of months of salary paid	2 months

Vessel revenue (Details)

Vessel revenue (Details) $ in Thousands	12 Months Ended
	Dec. 31, 2018USD ($)vessel	Dec. 31, 2017USD ($)vessel	Dec. 31, 2016USD ($)vessel
Analysis of income and expense [abstract]
Vessels that earned revenue in long-term time-charter contracts | vessel	5	5	6
Pool revenue	$ 543,784	$ 458,730	$ 485,003
Time charter revenue	34,015	37,411	36,694
Voyage revenue (spot market)	7,248	16,591	0
Other revenue	0	0	1,050
Revenue	$ 585,047	$ 512,732	$ 522,747

Operating Leases - Time and bar

Operating Leases - Time and bareboat chartered-in vessels (Details) - Vessels [member] - USD ($)	1 Months Ended
	Apr. 30, 2017	Dec. 31, 2018	Feb. 28, 2015
STI Beryl, STI Le Rocher, STI Larvotto [Member]
Disclosure of finance lease and operating lease by lessee [line items]
Sale leaseback transaction, gross proceeds per vessel	$ 29,000,000
Sale leaseback transaction, deposit per vessel	$ 4,350,000	$ 4,350,000
Handymax [Member] | Silent [Member]
Disclosure of finance lease and operating lease by lessee [line items]
Lease payments, daily rate		7,500
Handymax [Member] | Single [Member]
Disclosure of finance lease and operating lease by lessee [line items]
Lease payments, daily rate		7,500
Handymax [Member] | Star I [Member]
Disclosure of finance lease and operating lease by lessee [line items]
Lease payments, daily rate		7,500
Handymax [Member] | Steel [Member]
Disclosure of finance lease and operating lease by lessee [line items]
Lease payments, daily rate		6,000
Handymax [Member] | Sky [Member]
Disclosure of finance lease and operating lease by lessee [line items]
Lease payments, daily rate		6,000
Handymax [Member] | Stone I [Member]
Disclosure of finance lease and operating lease by lessee [line items]
Lease payments, daily rate		6,000
Handymax [Member] | Style [Member]
Disclosure of finance lease and operating lease by lessee [line items]
Lease payments, daily rate		6,000
Handymax [Member] | Krisjanis Valdemars [Member]
Disclosure of finance lease and operating lease by lessee [line items]
Lease payments, expired in current year, daily rate		11,250
Handymax [Member] | Kraslava [Member]
Disclosure of finance lease and operating lease by lessee [line items]
Lease payments, expired in current year, daily rate		11,250
MR [Member] | Miss Benedetta [Member]
Disclosure of finance lease and operating lease by lessee [line items]
Lease payments, daily rate		14,000
MR [Member] | STI Beryl [Member]
Disclosure of finance lease and operating lease by lessee [line items]
Lease payments, daily rate		8,800
MR [Member] | STI Le Rocher [Member]
Disclosure of finance lease and operating lease by lessee [line items]
Lease payments, daily rate		8,800
MR [Member] | STI Larvotto [Member]
Disclosure of finance lease and operating lease by lessee [line items]
Lease payments, daily rate		8,800
MR [Member] | Vukovar [Member]
Disclosure of finance lease and operating lease by lessee [line items]
Lease payments, expired in current year, daily rate		17,034
MR [Member] | Zefyros [Member]
Disclosure of finance lease and operating lease by lessee [line items]
Lease payments, expired in current year, daily rate		13,250
MR [Member] | CPO New Zealand [Member]
Disclosure of finance lease and operating lease by lessee [line items]
Lease payments, expired in current year, daily rate		15,250
MR [Member] | CPO Australia [Member]
Disclosure of finance lease and operating lease by lessee [line items]
Lease payments, expired in current year, daily rate		15,250
MR [Member] | Ance [Member]
Disclosure of finance lease and operating lease by lessee [line items]
Lease payments, expired in current year, daily rate		13,500
MR [Member] | Gan-Trust [Member]
Disclosure of finance lease and operating lease by lessee [line items]
Lease payments, expired in current year, daily rate		13,950
MR [Member] | STI Beryl, STI Le Rocher, STI Larvotto [Member]
Disclosure of finance lease and operating lease by lessee [line items]
Sale and leaseback, term of lease	8 years
Leaseback, daily rate	$ 8,800
Sale leaseback transaction, gross proceeds per vessel	29,000,000
Sale leaseback transaction, deposit per vessel	$ 4,350,000
LR2 [Member] | Densa Alligator [Member]
Disclosure of finance lease and operating lease by lessee [line items]
Lease payments, expired in current year, daily rate		14,300
LR2 [Member] | Densa Crocodile [Member]
Disclosure of finance lease and operating lease by lessee [line items]
Lease payments, daily rate			$ 21,050
Lease payments, expired in current year, daily rate		$ 14,800

Operating Leases - Future minim

Operating Leases - Future minimum lease payments (Details) - USD ($) $ in Thousands	Dec. 31, 2018	Dec. 31, 2017
Disclosure of maturity analysis of operating lease payments [abstract]
Minimum lease payments	$ 65,439	$ 117,635
Less than 1 year [member]
Disclosure of maturity analysis of operating lease payments [abstract]
Minimum lease payments	14,241	52,532
1 - 5 years [member]
Disclosure of maturity analysis of operating lease payments [abstract]
Minimum lease payments	38,570	42,839
Later than five years [member]
Disclosure of maturity analysis of operating lease payments [abstract]
Minimum lease payments	$ 12,628	$ 22,264

Operating Leases - Narrative (D

Operating Leases - Narrative (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Leases 1 [Abstract]
Minimum lease payments	$ 65,439	$ 117,635
Charterhire expense	$ 59,632	$ 75,750	$ 78,862

Operating Leases - Chartered-ou

Operating Leases - Chartered-out vessels summary (Details) - Vessels [member]	Dec. 31, 2018USD ($)
STI Pimlico [Member] | Handymax [Member]
Disclosure of finance lease and operating lease by lessor [line items]
Operating leases daily rate receivable	$ 18,000
STI Poplar [Member] | Handymax [Member]
Disclosure of finance lease and operating lease by lessor [line items]
Operating leases daily rate receivable	18,000
STI Notting Hill [Member] | MR [Member]
Disclosure of finance lease and operating lease by lessor [line items]
Operating leases daily rate receivable	20,500
STI Westminster [Member] | MR [Member]
Disclosure of finance lease and operating lease by lessor [line items]
Operating leases daily rate receivable	20,500
STI Rose [Member] | LR2 [Member]
Disclosure of finance lease and operating lease by lessor [line items]
Operating leases daily rate receivable	$ 28,000

Operating Leases - Future min_2

Operating Leases - Future minimum lease payments due to Company (Details) - USD ($) $ in Thousands	Dec. 31, 2018	Dec. 31, 2017
Disclosure of finance lease and operating lease by lessor [line items]
Minimum lease payments receivable	$ 2,581	$ 38,168
Less than 1 year [member]
Disclosure of finance lease and operating lease by lessor [line items]
Minimum lease payments receivable	2,581	35,992
1 - 5 years [member]
Disclosure of finance lease and operating lease by lessor [line items]
Minimum lease payments receivable	0	2,176
Later than five years [member]
Disclosure of finance lease and operating lease by lessor [line items]
Minimum lease payments receivable	$ 0	$ 0

General and administrative ex_3

General and administrative expenses (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Analysis of income and expense [abstract]
Short term employee benefits (salaries)	$ 9,605	$ 9,196	$ 12,330
Share based compensation	25,547	22,385	30,207
Total employee benefits expenses	$ 35,152	$ 31,581	$ 42,537

Financial expenses - Schedule o

Financial expenses - Schedule of Financial Expenses (Details)	1 Months Ended			12 Months Ended
	May 31, 2016USD ($)	Mar. 31, 2016USD ($)	Jul. 31, 2015USD ($)	Dec. 31, 2018USD ($)	Dec. 31, 2017USD ($)vessel	Dec. 31, 2016USD ($)vessel	Sep. 01, 2017USD ($)
Disclosure of detailed information about property, plant and equipment [line items]
Interest expense on debt				$ 145,871,000	$ 86,703,000	$ 63,858,000
Amortization of deferred financing fees				10,541,000	13,381,000	14,149,000
Write-offs of deferred financing fees				13,212,000	2,467,000	14,479,000
Accretion of Convertible Notes				13,225,000	12,211,000	11,562,000
Accretion of premiums and discounts on assumed debt				3,779,000	1,478,000	0
Total financial expenses				186,628,000	116,240,000	104,048,000
Average borrowings				2,806,900,000	2,265,700,000	1,986,600,000
Capitalized interest				200,000	4,200,000	6,300,000
Write-offs of deferred financing fees related to the refinancing of borrowings				12,000,000	800,000	11,200,000
STI Emerald and STI Sapphire [Member]
Disclosure of detailed information about property, plant and equipment [line items]
Write-offs of deferred financing fees related to repayment of debt					$ 500,000
Number of vessels sold | vessel					2
STI Beryl, STI Le Rocher, STI Larvotto [Member]
Disclosure of detailed information about property, plant and equipment [line items]
Write-offs of deferred financing fees related to repayment of debt					$ 100,000
Sale leaseback transaction, number of vessels | vessel					3
STI Amber, STI Topaz, STI Ruby, STI Garnet and STI Onyx [Member]
Disclosure of detailed information about property, plant and equipment [line items]
Write-offs of deferred financing fees related to repayment of debt					$ 1,100,000
Number of vessels under finance lease arrangements | vessel					5
STI Lexington, STI Mythos, STI Chelsea, STI Olivia, and STI Powai [Member]
Disclosure of detailed information about property, plant and equipment [line items]
Write-offs of deferred financing fees related to repayment of debt						$ 3,200,000
Number of vessels sold | vessel						5
NPTI [Member]
Disclosure of detailed information about property, plant and equipment [line items]
Liabilities incurred							$ 907,400,000
Convertible Notes due 2019 [Member]
Disclosure of detailed information about property, plant and equipment [line items]
Interest expense on debt				5,300,000	$ 8,300,000
Write-offs of deferred financing fees	$ 100,000	$ 100,000	$ 30,880
Accretion of Convertible Notes				8,300,000	$ 12,200,000
Write-offs of deferred financing fees related to the refinancing of borrowings				$ 1,200,000

(Loss) _ earnings per share - S

(Loss) / earnings per share - Schedule of Basic and Diluted (Loss) / Earnings per Share (Details) - USD ($) $ / shares in Units, $ in Thousands	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Earnings per share [abstract]
Net loss attributable to equity holders of the parent - basic	$ (190,071)	$ (158,240)	$ (24,903)
Convertible notes interest expense	0	0	0
Convertible notes deferred financing amortization	0	0	0
Net loss attributable to equity holders of the parent - diluted	$ (190,071)	$ (158,240)	$ (24,903)
Basic weighted average number of shares (in shares)	34,824,311	21,533,340	16,111,865
Effect of dilutive potential basic shares:
Restricted stock (in shares)	0	0	0
Convertible notes (in shares)	0	0	0
Dilutive shares (in shares)	0	0	0
Diluted weighted average number of shares (in shares)	34,824,311	21,533,340	16,111,865
Loss Per Share:
Basic (in USD per share)	$ (5.46)	$ (7.35)	$ (1.55)
Diluted (in USD per share)	$ (5.46)	$ (7.35)	$ (1.55)

(Loss) _ earnings per share - N

(Loss) / earnings per share - Narrative (Details) - shares	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Convertible Debt Securities [Member]
Earnings per share [line items]
Antidilutive securities (in shares)	6,613,733	3,442,282	3,404,979
Restricted Stock [Member]
Earnings per share [line items]
Antidilutive securities (in shares)	3,359,887	1,925,441	1,261,358

Financial instruments - finan_3

Financial instruments - financial and other risks - Categories of Financial Instruments (Details) - USD ($) $ in Thousands	Dec. 31, 2018	Jul. 31, 2018	May 31, 2018	Dec. 31, 2017	Apr. 30, 2017	Jun. 30, 2014
Disclosure of detailed information about financial instruments [line items]
Debt outstanding	$ 2,910,315			$ 2,767,193
Additional paid-in capital	2,648,599			2,283,591
Deferred financing fees [Member]
Disclosure of detailed information about financial instruments [line items]
Debt outstanding	(23,539)			(36,247)
Secured bank loans [member] | Deferred financing fees [Member]
Disclosure of detailed information about financial instruments [line items]
Debt outstanding	12,600			29,900
Finance Lease [Member] | Deferred financing fees [Member]
Disclosure of detailed information about financial instruments [line items]
Debt outstanding	9,500			1,200
Unsecured Senior Notes due 2020 [Member]
Disclosure of detailed information about financial instruments [line items]
Debt outstanding	53,750			53,750
Unsecured Senior Notes due 2020 [Member] | Deferred financing fees [Member]
Disclosure of detailed information about financial instruments [line items]
Debt outstanding	500			800
Unsecured Senior Notes Due 2019 [Member]
Disclosure of detailed information about financial instruments [line items]
Debt outstanding	57,500
Unsecured Senior Notes Due 2019 [Member] | Deferred financing fees [Member]
Disclosure of detailed information about financial instruments [line items]
Debt outstanding	500			1,500
Convertible Notes due 2019 [Member]
Disclosure of detailed information about financial instruments [line items]
Debt outstanding	142,200	$ 14,500	$ 180,400	328,700		$ 298,700
Convertible Notes due 2019 [Member] | Deferred financing fees [Member]
Disclosure of detailed information about financial instruments [line items]
Debt outstanding	400			2,800
Accounts payable [member] | Financial liabilities at amortised cost, category [member]
Disclosure of detailed information about financial instruments [line items]
Financial liabilities, carrying value	11,865			13,044
Accrued expenses [member] | Financial liabilities at amortised cost, category [member]
Disclosure of detailed information about financial instruments [line items]
Financial liabilities, carrying value	22,972			32,838
Secured bank loans [member] | Financial liabilities at amortised cost, category [member]
Disclosure of detailed information about financial instruments [line items]
Financial liabilities, carrying value	1,066,452			1,615,248
Finance Lease [Member] | Financial liabilities at amortised cost, category [member]
Disclosure of detailed information about financial instruments [line items]
Financial liabilities, carrying value	1,420,381			717,139
Unsecured Senior Notes due 2020 [Member] | Financial liabilities at amortised cost, category [member]
Disclosure of detailed information about financial instruments [line items]
Financial liabilities, carrying value	53,750			53,750
Unsecured Senior Notes Due 2019 [Member] | Financial liabilities at amortised cost, category [member]
Disclosure of detailed information about financial instruments [line items]
Financial liabilities, carrying value	57,500			57,500
Convertible Notes due 2019 [Member] | Financial liabilities at amortised cost, category [member]
Disclosure of detailed information about financial instruments [line items]
Financial liabilities, carrying value	145,000			348,500
Convertible Notes due 2022 [Member] | Financial liabilities at amortised cost, category [member]
Disclosure of detailed information about financial instruments [line items]
Financial liabilities, carrying value	203,500			0
Cash and cash equivalents [member] | Loans and receivables, category [member]
Disclosure of detailed information about financial instruments [line items]
Financial assets, carrying value	593,652			186,462
Restricted cash [member] | Loans and receivables, category [member]
Disclosure of detailed information about financial instruments [line items]
Financial assets, carrying value	12,285			11,387
Loans and receivables, category [member] | Loans and receivables, category [member]
Disclosure of detailed information about financial instruments [line items]
Financial assets, carrying value	69,718			65,458
Investment in Associates | Loans and receivables, category [member]
Disclosure of detailed information about financial instruments [line items]
Financial assets, carrying value	1,751			0
Sale Leaseback Transaction, Deposits [Member] | Loans and receivables, category [member]
Disclosure of detailed information about financial instruments [line items]
Financial assets, carrying value	9,087			8,581
Reserve of equity component of convertible instruments [member] | Convertible Notes due 2019 [Member] | Deferred financing fees [Member]
Disclosure of detailed information about financial instruments [line items]
Additional paid-in capital	1,900
Level 1 of fair value hierarchy [member] | Accounts payable [member] | Financial liabilities at amortised cost, category [member]
Disclosure of detailed information about financial instruments [line items]
Financial liabilities, at fair value	11,865			13,044
Level 1 of fair value hierarchy [member] | Accrued expenses [member] | Financial liabilities at amortised cost, category [member]
Disclosure of detailed information about financial instruments [line items]
Financial liabilities, at fair value	22,972			32,838
Level 1 of fair value hierarchy [member] | Finance Lease [Member] | Financial liabilities at amortised cost, category [member]
Disclosure of detailed information about financial instruments [line items]
Financial liabilities, at fair value	1,420,381			717,139
Level 1 of fair value hierarchy [member] | Unsecured Senior Notes due 2020 [Member] | Financial liabilities at amortised cost, category [member]
Disclosure of detailed information about financial instruments [line items]
Financial liabilities, at fair value	52,584			53,449
Level 1 of fair value hierarchy [member] | Unsecured Senior Notes Due 2019 [Member] | Financial liabilities at amortised cost, category [member]
Disclosure of detailed information about financial instruments [line items]
Financial liabilities, at fair value	58,029			58,466
Level 1 of fair value hierarchy [member] | Cash and cash equivalents [member] | Loans and receivables, category [member]
Disclosure of detailed information about financial instruments [line items]
Financial assets, at fair value	593,652			186,462
Level 1 of fair value hierarchy [member] | Restricted cash [member] | Loans and receivables, category [member]
Disclosure of detailed information about financial instruments [line items]
Financial assets, at fair value	12,285			11,387
Level 1 of fair value hierarchy [member] | Loans and receivables, category [member] | Loans and receivables, category [member]
Disclosure of detailed information about financial instruments [line items]
Financial assets, at fair value	69,718			65,458
Level 1 of fair value hierarchy [member] | Sale Leaseback Transaction, Deposits [Member] | Loans and receivables, category [member]
Disclosure of detailed information about financial instruments [line items]
Financial assets, at fair value	9,087			8,581
Level 2 of fair value hierarchy [member] | Secured bank loans [member] | Financial liabilities at amortised cost, category [member]
Disclosure of detailed information about financial instruments [line items]
Financial liabilities, at fair value	1,066,452			1,615,248
Level 2 of fair value hierarchy [member] | Convertible Notes due 2019 [Member] | Financial liabilities at amortised cost, category [member]
Disclosure of detailed information about financial instruments [line items]
Financial liabilities, at fair value	140,267			316,184
Level 2 of fair value hierarchy [member] | Convertible Notes due 2022 [Member] | Financial liabilities at amortised cost, category [member]
Disclosure of detailed information about financial instruments [line items]
Financial liabilities, at fair value	163,842			0
Level 3 of fair value hierarchy [member] | Investment in Associates | Loans and receivables, category [member]
Disclosure of detailed information about financial instruments [line items]
Financial assets, at fair value	1,751			0
Ballast Water Treatment Systems [Member]
Disclosure of detailed information about financial instruments [line items]
Aggregate difference in investment fair value between put and call option exercise prices	600
STI Beryl, STI Le Rocher, STI Larvotto [Member] | Vessels [member]
Disclosure of detailed information about financial instruments [line items]
Sale leaseback transaction, deposit per vessel	4,350				$ 4,350
Sale leaseback transaction, aggregate amount	13,100
Scorpio Group Pools [Member] | Receivables Due From Related Party [Member] | Loans and receivables, category [member]
Disclosure of detailed information about financial instruments [line items]
Financial assets, carrying value	42,973			41,401
Scorpio Group Pools [Member] | Level 1 of fair value hierarchy [member] | Receivables Due From Related Party [Member] | Loans and receivables, category [member]
Disclosure of detailed information about financial instruments [line items]
Financial assets, at fair value	$ 42,973			$ 41,401

Financial instruments - finan_4

Financial instruments - financial and other risks - Narrative (Details) - USD ($)	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Disclosure of detailed information about financial instruments [line items]
Proceeds from issuing shares	$ 337,000,000	$ 303,500,000	$ 0
Spot market rate risk [Member]
Disclosure of detailed information about financial instruments [line items]
Amount of changes in spot rate used for sensitivity analysis	1,000
Impact on operating income (loss) due to increase (decrease) in spot rate in sensitivity analysis	$ 43,700,000	$ 36,600,000	$ 31,100,000
Interest rate risk [member]
Disclosure of detailed information about financial instruments [line items]
Percentage of change in interest rates used for sensitivity analysis	1.00%	1.00%	1.00%
Impact on profit (loss) due to changes in interest rate in sensitivity analysis	$ 22,800,000	$ 17,900,000	$ 14,800,000
Over-Allotment Option1 [Member]
Disclosure of detailed information about financial instruments [line items]
Proceeds from issuing shares	$ 319,600,000

Financial instruments - finan_5

Financial instruments - financial and other risks - Schedule of Contractual Maturity for Secured and Unsecred Facilities (Details) - USD ($) $ in Thousands	Dec. 31, 2018	Dec. 31, 2017
Disclosure of maturity analysis for non-derivative financial liabilities [line items]
Future undiscounted cash flows of financial liability	$ 3,634,280	$ 3,431,669
Less than 1 month [member]
Disclosure of maturity analysis for non-derivative financial liabilities [line items]
Future undiscounted cash flows of financial liability	18,994	24,868
1-3 months [member]
Disclosure of maturity analysis for non-derivative financial liabilities [line items]
Future undiscounted cash flows of financial liability	140,710	65,294
3 months to 1 year [member]
Disclosure of maturity analysis for non-derivative financial liabilities [line items]
Future undiscounted cash flows of financial liability	419,070	219,144
1-3 years [member]
Disclosure of maturity analysis for non-derivative financial liabilities [line items]
Future undiscounted cash flows of financial liability	1,049,739	1,215,144
3 - 5 years [member]
Disclosure of maturity analysis for non-derivative financial liabilities [line items]
Future undiscounted cash flows of financial liability	1,095,717	1,222,889
5 plus years [member]
Disclosure of maturity analysis for non-derivative financial liabilities [line items]
Future undiscounted cash flows of financial liability	$ 910,050	$ 684,330

Subsequent events (Details)

Subsequent events (Details)	Mar. 18, 2019	Mar. 13, 2019	Feb. 13, 2019$ / shares	Jan. 18, 2019shares	Dec. 05, 2018$ / shares	Sep. 20, 2018$ / shares	Jun. 06, 2018$ / shares	Mar. 12, 2018$ / shares	Dec. 13, 2017$ / shares	Sep. 25, 2017$ / shares	May 11, 2017$ / shares	Feb. 23, 2017$ / shares	Nov. 25, 2016$ / shares	Sep. 15, 2016$ / shares	May 11, 2016$ / shares	Mar. 10, 2016$ / shares	Nov. 24, 2015$ / shares	Aug. 14, 2015$ / shares	May 21, 2015$ / shares	Mar. 13, 2015$ / shares	Nov. 25, 2014$ / shares	Aug. 22, 2014$ / shares	Mar. 18, 2019USD ($)	May 31, 2018	May 31, 2016USD ($)	Mar. 31, 2016USD ($)	Jul. 31, 2015USD ($)	Jun. 30, 2014	Jul. 31, 2018USD ($)	Dec. 31, 2018USD ($)$ / sharesshares	Mar. 15, 2019USD ($)shares	Feb. 28, 2019$ / sharesshares	Jan. 17, 2019shares	Jun. 30, 2018$ / sharesshares	Feb. 28, 2018$ / sharesshares	Dec. 31, 2017$ / sharesshares	Oct. 31, 2017$ / sharesshares	Dec. 31, 2016shares	Apr. 30, 2013shares
Disclosure of non-adjusting events after reporting period [line items]
Common stock, par value (in dollars per share) | $ / shares																														$ 0.01
Debt transactions [Member]
Disclosure of non-adjusting events after reporting period [line items]
Notes repurchased amount | $																							$ 2,300,000
Common stock [Member]
Disclosure of non-adjusting events after reporting period [line items]
Number of shares authorized (in shares) | shares																														150,000,000						40,000,000
Number of shares outstanding (in shares) | shares																														51,397,562						32,650,755
Common stock, par value (in dollars per share) | $ / shares																														$ 0.01						$ 0.01
Common stock [Member] | Major ordinary share transactions [Member]
Disclosure of non-adjusting events after reporting period [line items]
Number of shares authorized (in shares) | shares				150,000,000
Reverse stock split of common shares				0.10
Number of shares outstanding (in shares) | shares				51,397,470																											51,396,970		513,975,324
Dividends per share (in USD per share) | $ / shares			$ 0.10
Common stock, par value (in dollars per share) | $ / shares																																$ 0.01
2013 Equity Incentive Plan [Member]
Disclosure of non-adjusting events after reporting period [line items]
Shares reserved for issuance (in shares) | shares																																							500,000
2013 Equity Incentive Plan [Member] | Common stock [Member]
Disclosure of non-adjusting events after reporting period [line items]
Shares reserved for issuance (in shares) | shares																														1,383,248				210,140	512,244		950,180	1,286,971
Common stock, par value (in dollars per share) | $ / shares																														$ 0.01				$ 0.01	$ 0.01		$ 0.01
2013 Equity Incentive Plan [Member] | Common stock [Member] | Major ordinary share transactions [Member]
Disclosure of non-adjusting events after reporting period [line items]
Shares reserved for issuance (in shares) | shares																																86,977
Convertible Notes due 2019 [Member]
Disclosure of non-adjusting events after reporting period [line items]
Dividends per share (in USD per share) | $ / shares					$ 0.1	$ 0.1	$ 0.1	$ 0.1	$ 0.1	$ 0.1	$ 0.1	$ 0.1	$ 1.25	$ 1.25	$ 1.25	$ 1.25	$ 1.25	$ 1.25	$ 1.25	$ 1.2	$ 1.2	$ 1
Convertible conversion rate					0.01005396	0.01000515	0.00995277	0.00992056	0.00987742	0.00984450	0.00981588	0.00979316	0.00977039	0.00949345	0.00925323	0.00905311	0.00886790	0.00874349	0.00863738	0.00852216	0.00840184	0.00828556			0.8475	0.83105	1.08810	0.0082008		0.0100540
Notes repurchased amount | $																									$ 5,000,000	$ 5,000,000	$ 1,500,000
Repayments | $																									$ 4,200,000	$ 4,200,000			$ 203,500,000
Convertible Notes due 2019 [Member] | Debt transactions [Member]
Disclosure of non-adjusting events after reporting period [line items]
Convertible conversion rate		0.010111																					0.99
Increase (decrease) in convertible conversion ratio		0.000057
Repayments | $																							$ 2,300,000
Convertible Notes due 2022 [Member]
Disclosure of non-adjusting events after reporting period [line items]
Dividends per share (in USD per share) | $ / shares					$ 0.1	$ 0.1	$ 0.1
Convertible conversion rate					0.02534	0.02521	0.02508																	0.025
Convertible Notes due 2022 [Member] | Debt transactions [Member]
Disclosure of non-adjusting events after reporting period [line items]
Convertible conversion rate		0.0254799
Increase (decrease) in convertible conversion ratio		0.0001437
Unsecured Senior Notes Due 2019 [Member] | Debt transactions [Member]
Disclosure of non-adjusting events after reporting period [line items]
Repurchased face amount percentage	100.00%
2015 Securities Repurchase Program [Member] | Common stock [Member]
Disclosure of non-adjusting events after reporting period [line items]
Stock buyback program, remaining authorized amount | $																														$ 123,800,000
2015 Securities Repurchase Program [Member] | Common stock [Member] | Debt transactions [Member]
Disclosure of non-adjusting events after reporting period [line items]
Stock buyback program, remaining authorized amount | $																															$ 121,600,000

Uncategorized Items - stng-2018

Label	Element	Value
Equity Adjusted For Cumulative Effect Of New Accounting Principle In Period Of Adoption	stng_EquityAdjustedForCumulativeEffectOfNewAccountingPrincipleInPeriodOfAdoption	$ 4,000
Retained earnings [member]
Equity Adjusted For Cumulative Effect Of New Accounting Principle In Period Of Adoption	stng_EquityAdjustedForCumulativeEffectOfNewAccountingPrincipleInPeriodOfAdoption	$ 4,000