Aircastle (AYR) 10-Q 7 Aug 18 2018 Q2 Quarterly report Financial data

Document and Entity Information

Document and Entity Information - shares	6 Months Ended
	Jun. 30, 2018	Aug. 03, 2018
Document And Entity Information [Abstract]
Entity Registrant Name	Aircastle LTD
Entity Central Index Key	1,362,988
Document Type	10-Q
Document Period End Date	Jun. 30, 2018
Amendment Flag	false
Document Fiscal Year Focus	2,018
Document Fiscal Period Focus	Q2
Current Fiscal Year End Date	--12-31
Entity Filer Category	Large Accelerated Filer
Entity Common Stock, Shares Outstanding		78,186,008

Consolidated Balance Sheets

Consolidated Balance Sheets - USD ($) $ in Thousands	Jun. 30, 2018	Dec. 31, 2017
ASSETS
Cash and cash equivalents	$ 142,360	$ 211,922
Restricted Cash and Cash Equivalents	20,880	21,935
Accounts receivable	19,357	12,815
Flight equipment held for lease, net of accumulated depreciation of $1,177,448 and $1,125,594, respectively	6,249,406	6,188,469
Net investment in finance and sales-type leases	526,738	545,750
Unconsolidated equity method investments	80,100	76,982
Other assets	174,307	141,210
Total assets	7,213,148	7,199,083
LIABILITIES
Borrowings from secured financings, net of debt issuance costs	798,522	849,874
Borrowings from unsecured financings, net of debt issuance costs	3,392,169	3,463,732
Accounts payable, accrued expenses and other liabilities	131,364	140,221
Lease rentals received in advance	76,780	57,630
Security deposits	131,101	130,628
Maintenance payments	719,806	649,434
Total liabilities	5,249,742	5,291,519
Commitments and Contingencies
SHAREHOLDERS’ EQUITY
Common shares, $0.01 par value, 250,000,000 shares authorized, 78,244,038 shares issued and outstanding at June 30, 2018; and 78,707,963 shares issued and outstanding at December 31, 2017	782	787
Additional paid-in capital	1,519,479	1,527,796
Retained earnings	443,900	380,331
Accumulated other comprehensive loss	(755)	(1,350)
Total shareholders’ equity	1,963,406	1,907,564
Total liabilities and shareholders’ equity	$ 7,213,148	$ 7,199,083

Consolidated Balance Sheets (Pa

Consolidated Balance Sheets (Parenthetical) - USD ($) $ in Thousands	Jun. 30, 2018	Dec. 31, 2017
Accumulated depreciation on flight equipment held for lease	$ 1,177,448	$ 1,125,594
Common shares, par value	$ 0.01	$ 0.01
Common shares, shares authorized	250,000,000	250,000,000
Common shares, shares issued	78,244,038	78,707,963
Common shares, shares outstanding	78,244,038	78,707,963
Preference shares, par value	$ 0.01	$ 0.01
Preference shares, shares authorized	50,000,000	50,000,000
Preferred Stock, Shares Issued	0	0
Preferred Stock, Shares Outstanding	0	0

Consolidated Statements of Inco

Consolidated Statements of Income (Unaudited) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Revenues:
Lease rental revenue	$ 178,486	$ 189,098	$ 355,969	$ 379,684
Finance and sales-type lease revenue	8,868	5,878	18,310	9,951
Amortization of lease premiums, discounts and incentives	(3,534)	(3,280)	(6,662)	(6,392)
Maintenance revenue	0	28,944	11,991	41,231
Total lease revenue	183,820	220,640	379,608	424,474
Gain (Loss) on Disposition of Property Plant Equipment	19,864	13,525	25,632	14,284
Other revenue	592	2,894	1,716	3,333
Total revenues	204,276	237,059	406,956	442,091
Operating expenses:
Depreciation	76,181	78,254	151,183	157,428
Interest, net	57,398	61,672	114,506	124,740
Selling, general and administrative (including non-cash share-based payment expense of $3,076 and $6,028 for the three months ended and $5,454 and $8,130 for the six months ended June 30, 2018 and 2017, respectively)	18,583	22,187	36,418	38,354
Asset Impairment Charges	0	79,930	0	80,430
Maintenance and other costs	1,561	2,343	2,549	5,274
Total expenses	153,723	244,386	304,656	406,226
Other income (expense):
Total other income (expense)	901	(1,560)	4,075	(2,709)
Income (loss) from continuing operations before income taxes and earnings of unconsolidated equity method investments	51,454	(8,887)	106,375	33,156
Income tax provision	3,132	495	2,288	2,341
Earnings of unconsolidated equity method investments, net of tax	1,881	2,266	3,663	4,508
Net income (loss)	$ 50,203	$ (7,116)	$ 107,750	$ 35,323
Earnings (loss) per common share — Basic:
Net income (loss) per share (in dollars per share)	$ 0.64	$ (0.09)	$ 1.37	$ 0.45
Earnings (loss) per common share — Diluted:
Net income (loss) per share	0.64	(0.09)	1.37	0.45
Dividends declared per share	$ 0.28	$ 0.26	$ 0.56	$ 0.52

Consolidated Statements of Inc5

Consolidated Statements of Income (Unaudited) (Parenthetical) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Income Statement [Abstract]
Non-cash share based payment expense	$ 3,076	$ 6,028	$ 5,454	$ 8,130

Consolidated Statements of Comp

Consolidated Statements of Comprehensive Income (Unaudited) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Statement of Comprehensive Income [Abstract]
Net income (loss)	$ 50,203	$ (7,116)	$ 107,750	$ 35,323
Other comprehensive income, net of tax:
Net derivative loss reclassified into earnings	294	575	595	1,156
Other comprehensive income	294	575	595	1,156
Total comprehensive income (loss)	$ 50,497	$ (6,541)	$ 108,345	$ 36,479

Consolidated Statements of Com7

Consolidated Statements of Comprehensive Income (Unaudited) (Parenthetical) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Statement of Comprehensive Income [Abstract]
Net of tax expense	$ 0	$ 0	$ 0	$ 0

Consolidated Statements of Cash

Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017
Statement of Cash Flows [Abstract]
Net income (loss)	$ 107,750	$ 35,323
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation	151,183	157,428
Amortization of Debt Issuance Costs and Discounts	7,042	9,125
Amortization of lease premiums, discounts and incentives	6,662	6,392
Deferred income taxes	3,126	(833)
Non-cash share-based payment expense	5,454	8,130
Cash flow hedges reclassified into earnings	595	1,156
Security deposits and maintenance payments included in earnings	(554)	(23,063)
Gain on sale of flight equipment	(25,632)	(14,284)
Asset Impairment Charges	0	80,430
Other	(7,491)	1,211
Changes in certain assets and liabilities:
Accounts receivable	(7,315)	2,090
Other assets	(3,086)	(11,407)
Accounts payable, accrued expenses and other liabilities	(14,799)	(2,194)
Lease rentals received in advance	16,908	(2,115)
Net Cash and Restricted Cash Provided by (Used in) Operating Activities	239,843	247,389
Cash flows from investing activities:
Acquisition and improvement of flight equipment	(365,505)	(148,364)
Proceeds from sale of flight equipment	178,185	238,277
Payments to Acquire Finance Receivables	(16,256)	(119,971)
Collections on finance and sales-type leases	13,127	17,185
Payments for (Proceeds from) Previous Acquisition	(3,965)	(2,892)
Other	2,956	88
Net Cash and Restricted Cash Provided By (Used In) Investing Activities	(191,458)	(15,677)
Cash flows from financing activities:
Repurchase of shares	(14,987)	(2,513)
Proceeds from secured and unsecured debt financings	0	500,000
Repayments of secured and unsecured debt financings	(128,342)	(667,472)
Deferred financing costs	(1,615)	(8,540)
Security deposits and maintenance payments received	108,653	87,185
Security deposits and maintenance payments returned	(38,718)	(77,593)
Dividends paid	(43,993)	(40,948)
Net Cash and Restricted Cash Provided by (Used In) Financing Activities	(119,002)	(209,881)
Cash and Restricted Cash, Period Increase (Decrease)	(70,617)	21,831
Cash and Restricted Cash at Beginning of Period	233,857	508,817
Cash and Restricted Cash at End of Period	163,240	530,648
Supplemental disclosures of cash flow information:
Cash paid for interest, net of capitalized interest	108,078	117,420
Cash paid for income taxes	5,533	2,200
Supplemental disclosures of non-cash investing activities:
Advance lease rentals, security deposits and maintenance payments assumed in asset acquisitions	28,348	3,653
Advance Lease Rentals, Security Deposits, Maintenance Payments, Other Liabilities and Other Assets Settled In Sale Of Flight Equipment	40,116	44,603
Property, Plant and Equipment, Transfers and Changes	$ 40,198	$ 99,162

Summary of Significant Accounti

Summary of Significant Accounting Policies	6 Months Ended
	Jun. 30, 2018
Accounting Policies [Abstract]
Organization, Consolidation and Presentation of Financial Statements Disclosure and Significant Accounting Policies [Text Block]	Summary of Significant Accounting Policies Organization and Basis of Presentation Aircastle Limited (“Aircastle,” the “Company,” “we,” “us” or “our”) is a Bermuda exempted company that was incorporated on October 29, 2004 under the provisions of Section 14 of the Companies Act of 1981 of Bermuda. Aircastle’s business is acquiring, leasing, managing and selling commercial jet aircraft. Aircastle is a holding company that conducts its business through subsidiaries. Aircastle directly or indirectly owns all of the outstanding common shares of its subsidiaries. The consolidated financial statements presented are prepared in accordance with U.S. generally accepted accounting principles (“U.S. GAAP”). The Company manages, analyzes and reports on its business and results of operations on the basis of one operating segment: leasing, financing, selling and managing commercial flight equipment. Our Chief Executive Officer is the chief operating decision maker. The accompanying consolidated financial statements are unaudited and have been prepared pursuant to the rules and regulations of the Securities and Exchange Commission (the “SEC”) for interim financial reporting and, in our opinion, reflect all adjustments, including normal recurring items, which are necessary to present fairly the results for interim periods. Operating results for the periods presented are not necessarily indicative of the results that may be expected for the entire year. Certain information and footnote disclosures normally included in consolidated financial statements prepared in accordance with U.S. GAAP have been omitted in accordance with the rules and regulations of the SEC; however, we believe that the disclosures are adequate to make information presented not misleading. These financial statements should be read in conjunction with the consolidated financial statements and notes thereto included in the Company’s Annual Report on Form 10-K for the year ended December 31, 2017 . As part of the Company’s adoption of Financial Accounting Standards Board (“FASB”) Accounting Standards Update (“ASU”) No. 2014-09, Revenue from Contracts with Customers (Topic 606) , we have reclassified Gain on sale of flight equipment from Other income (expense) to Revenues on our Consolidated Statements of Income for the three and six months ended June 30, 2018 . We believe this better reflects the sale of flight equipment as part of our ordinary activities and conforms our presentation to those of our publicly traded peers. The presentation for the three and six months ended June 30, 2017 , has also been reclassified to conform to the current period presentation: Three Months Ended June 30, 2017 Six Months Ended June 30, 2017 Total revenues as previously reported $ 223,534 $ 427,807 Gain on sale of flight equipment 13,525 14,284 Total revenues $ 237,059 $ 442,091 The Company’s management has reviewed and evaluated all events or transactions for potential recognition and/or disclosure since the balance sheet date of June 30, 2018 , through the date on which the consolidated financial statements included in this Form 10-Q were issued. Effective January 1, 2018, the Company adopted FASB ASU No. 2016-15, Statement of Cash Flows (Topic 230), Classification of Certain Cash Receipts and Cash Payments . The standard clarifies how entities should classify certain cash receipts and cash payments on the statement of cash flows. The guidance also clarifies how the predominance principle should be applied when cash receipts and cash payments have aspects of more than one class of cash flows. The update is applied using a retrospective transition method to each period presented. The standard did not have a material impact on our consolidated financial statements and related disclosures. Effective January 1, 2018, the Company adopted FASB ASU No. 2014-09, Revenue from Contracts with Customers (Topic 606) and related updates, as noted above. Lease contracts within the scope of Accounting Standards Codification (“ASC”) 840, Leases , are specifically excluded from ASU No. 2014-09. The standard’s core principle is that a company will recognize revenue when it transfers promised goods or services to customers in an amount that reflects the consideration to which a company expects to be entitled in exchange for those goods or services. The update is applied using the modified retrospective approach. The standard did not have a material impact on our consolidated financial statements and related disclosures. Effective January 1, 2018, the Company adopted FASB ASU No. 2017-09, Compensation-Stock Compensation (Topic 718), Scope of Modification Accounting . The standard clarifies when changes to the terms or conditions of a share-based payment award must be accounted for as modifications. Entities will apply the modification accounting guidance if the value, vesting conditions or classification of the award changes. In addition, when applicable, disclosure is required to indicate that compensation expense has not changed. The update is applied using a prospective transition method to each period presented. The standard did not have a material impact on our consolidated financial statements and related disclosures. Principles of Consolidation The consolidated financial statements include the accounts of Aircastle and all of its subsidiaries. Aircastle consolidates four Variable Interest Entities (“VIEs”) of which Aircastle is the primary beneficiary. All intercompany transactions and balances have been eliminated in consolidation. We consolidate VIEs in which we have determined that we are the primary beneficiary. We use judgment when deciding: (a) whether an entity is subject to consolidation as a VIE; (b) who the variable interest holders are; (c) the potential expected losses and residual returns of the variable interest holders; and (d) which variable interest holder is the primary beneficiary. When determining which enterprise is the primary beneficiary, we consider: (1) the entity’s purpose and design; (2) which variable interest holder has the power to direct the activities that most significantly impact the entity’s economic performance; and (3) the obligation to absorb losses of the entity or the right to receive benefits from the entity that could potentially be significant to the VIE. When certain events occur, we reconsider whether we are the primary beneficiary of VIEs. We do not reconsider whether we are a primary beneficiary solely because of operating losses incurred by an entity. Use of Estimates The preparation of financial statements in conformity with U.S. GAAP requires management to make estimates and assumptions that affect the amounts reported in the consolidated financial statements and accompanying notes. While Aircastle believes that the estimates and related assumptions used in the preparation of the consolidated financial statements are appropriate, actual results could differ from those estimates. Recent Accounting Pronouncements On February 25, 2016, the FASB issued ASC 842, Leases (“ASC 842”) which, together with all subsequent amendments, replaced the existing guidance in ASC 840, Leases (“ASC 840”). The accounting for leases by lessors basically remained unchanged from the concepts that existed in ASC 840 accounting. The FASB decided that lessors would be precluded from recognizing selling profit and revenue at lease commencement for any sales-type or direct finance lease that does not transfer control of the underlying asset to the lessee. This requirement aligns the notion of what constitutes a sale in the lessor accounting guidance with that in the forthcoming revenue recognition standard, which evaluates whether a sale has occurred from the customer’s perspective. The standard will be effective for reporting periods beginning after December 15, 2018. We plan to adopt the standard on its required effective date of January 1, 2019, using the “modified retrospective” approach and are reviewing which, if any, practical expedients to use. We are also evaluating the impact that ASC 842 will have on our consolidated financial statements and related disclosures. We do not believe that the adoption of the standard will significantly impact our existing or potential lessees' economic decisions to lease aircraft. In June 2016, the FASB issued ASU No. 2016-13, Financial Instruments - Credit Losses (Topic 326), Measurement of Credit Losses on Financial Instruments . The standard affects entities holding financial assets and net investment in leases that are not accounted for at fair value through net income. The amendments affect loans, debt securities, trade receivables, net investments in leases, off-balance-sheet credit exposures, reinsurance receivables, and any other financial assets not excluded from the scope that have the contractual right to receive cash. The standard is applied on a modified retrospective approach. The standard is effective for annual periods beginning after December 15, 2019, including interim periods within those fiscal years. Early adoption is permitted as early as the fiscal years beginning after December 15, 2018, including interim periods within those fiscal years. We are in the process of determining the impact the standard will have on our consolidated financial statements and related disclosures.

Fair Value Measurements

Fair Value Measurements	6 Months Ended
	Jun. 30, 2018
Fair Value Disclosures [Abstract]
Fair Value Measurements	Fair Value Measurements Fair value measurements and disclosures require the use of valuation techniques to measure fair value that maximize the use of observable inputs and minimize use of unobservable inputs. These inputs are prioritized as follows: • Level 1: Observable inputs such as quoted prices in active markets for identical assets or liabilities. • Level 2: Inputs other than quoted prices included within Level 1 that are observable, either directly or indirectly, such as quoted prices for similar assets or liabilities or market corroborated inputs. • Level 3: Unobservable inputs for which there is little or no market data and which require us to develop our own assumptions about how market participants price the asset or liability. The valuation techniques that may be used to measure fair value are as follows: • The market approach uses prices and other relevant information generated by market transactions involving identical or comparable assets or liabilities. • The income approach uses valuation techniques to convert future amounts to a single present amount based on current market expectation about those future amounts. • The cost approach is based on the amount that currently would be required to replace the service capacity of an asset (replacement cost). The following tables set forth our financial assets as of June 30, 2018 and December 31, 2017 that we measured at fair value on a recurring basis by level within the fair value hierarchy. Assets measured at fair value are classified in their entirety based on the lowest level of input that is significant to their fair value measurement. Fair Value Measurements at June 30, 2018 Using Fair Value Hierarchy Fair Value as of June 30, 2018 Quoted Prices in Active Markets for Identical Assets (Level 1) Significant Other Observable Inputs (Level 2) Significant Unobservable Inputs (Level 3) Valuation Technique Assets: Cash and cash equivalents $ 142,360 $ 142,360 $ — $ — Market Restricted cash and cash equivalents 20,880 20,880 — — Market Derivative assets 7,329 — 7,329 — Market Total $ 170,569 $ 163,240 $ 7,329 $ — Fair Value Measurements at December 31, 2017 Using Fair Value Hierarchy Fair Value as of December 31, 2017 Quoted Prices in Active Markets for Identical Assets (Level 1) Significant Other Observable Inputs (Level 2) Significant Unobservable Inputs (Level 3) Valuation Technique Assets: Cash and cash equivalents $ 211,922 $ 211,922 $ — $ — Market Restricted cash and cash equivalents 21,935 21,935 — — Market Derivative assets 3,254 — 3,254 — Market Total $ 237,111 $ 233,857 $ 3,254 $ — Our cash and cash equivalents, along with our restricted cash and cash equivalents balances, consist largely of money market securities that are considered to be highly liquid and easily tradable. These securities are valued using inputs observable in active markets for identical securities and are therefore classified as Level 1 within our fair value hierarchy. Our interest rate derivative included in Level 2 consists of United States dollar-denominated interest rate cap, and the fair value is based on market comparisons for similar instruments. We also considered the credit rating and risk of the counterparty providing the interest rate cap based on quantitative and qualitative factors. For the three and six months ended June 30, 2018 and the year ended December 31, 2017 , we had no transfers into or out of Level 3. We measure the fair value of certain assets and liabilities on a non-recurring basis, when U.S. GAAP requires the application of fair value, including events or changes in circumstances that indicate that the carrying amounts of assets may not be recoverable. Assets subject to these measurements include our investments in unconsolidated joint ventures and aircraft. We account for our investments in unconsolidated joint ventures under the equity method of accounting and record impairment when its fair value is less than its carrying value. We record aircraft at fair value when we determine the carrying value may not be recoverable. Fair value measurements for aircraft in impairment tests are based on an income approach which uses Level 3 inputs, which include the Company’s assumptions and appraisal data as to future cash proceeds from leasing and selling aircraft. Aircraft Valuation Annual Recoverability Assessment We completed our annual recoverability assessment of our aircraft in the second quarter this year. We also performed aircraft-specific analyses where there were changes in circumstances, such as approaching lease expirations. No impairments were recorded as a result of our annual recoverability assessment. The recoverability assessment is a comparison of the carrying value of each aircraft to its undiscounted expected future cash flows. We develop the assumptions used in the recoverability assessment, including those relating to current and future demand for each aircraft type, based on management’s experience in the aircraft leasing industry, as well as information received from third-party sources. Estimates of the undiscounted cash flows for each aircraft type are impacted by changes in contracted and future expected lease rates, residual values, expected scrap values, economic conditions and other factors. Management believes that the net book value of each aircraft is currently supported by the estimated future undiscounted cash flows expected to be generated by that aircraft, and accordingly, no aircraft were impaired as a consequence of our annual recoverability assessment. However, if our estimates or assumptions change, we may revise our cash flow assumptions and record future impairment charges. While we believe that the estimates and related assumptions used in the annual recoverability assessment are appropriate, actual results could differ from those estimates. Financial Instruments Our financial instruments, other than cash, consist principally of cash equivalents, restricted cash and cash equivalents, accounts receivable, accounts payable, amounts borrowed under financings and interest rate derivatives. The fair value of cash, cash equivalents, restricted cash and cash equivalents, accounts receivable and accounts payable approximates the carrying value of these financial instruments because of their short-term nature. The fair value of our senior notes is estimated using quoted market prices. The fair values of all our other financings are estimated using a discounted cash flow analysis, based on our current incremental borrowing rates for similar types of borrowing arrangements. The carrying amounts and fair values of our financial instruments at June 30, 2018 and December 31, 2017 were as follows: June 30, 2018 December 31, 2017 Carrying Amount of Liability Fair Value of Liability Carrying Amount of Liability Fair Value of Liability Credit Facilities $ 100,000 $ 100,000 $ 175,000 $ 175,000 Unsecured Term Loan 120,000 120,000 120,000 120,000 ECA Financings 208,448 208,823 227,491 232,030 Bank Financings 600,883 602,468 634,898 634,132 Senior Notes 3,200,000 3,246,700 3,200,000 3,367,245 All of our financial instruments are classified as Level 2 with the exception of our Senior Notes, which are classified as Level 1.

Lease Rental Revenues and Fligh

Lease Rental Revenues and Flight Equipment Held for Lease	6 Months Ended
	Jun. 30, 2018
Leases [Abstract]
Lessor, Operating Leases [Text Block]	Lease Rental Revenues and Flight Equipment Held for Lease Minimum future annual lease rentals contracted to be received under our existing operating leases of flight equipment at June 30, 2018 were as follows: Year Ending December 31, Amount Remainder of 2018 $ 373,563 2019 679,349 2020 576,304 2021 459,712 2022 367,244 Thereafter 725,712 Total $ 3,181,884 Geographic concentration of lease rental revenue earned from flight equipment held for lease was as follows: Three Months Ended June 30, Six Months Ended June 30, Region 2018 2017 2018 2017 Asia and Pacific 35 % 37 % 35 % 39 % Europe 29 % 24 % 29 % 23 % Middle East and Africa 11 % 12 % 11 % 12 % North America 8 % 8 % 8 % 7 % South America 17 % 19 % 17 % 19 % Total 100 % 100 % 100 % 100 % The classification of regions in the tables above and in the table and discussion below is determined based on the principal location of the lessee of each aircraft. The following table shows the number of lessees with lease rental revenue of at least 5% and their combined total percentage of lease rental revenue for the years indicated: Three Months Ended June 30, Six Months Ended June 30, 2018 2017 2018 2017 Number of Lessees Combined % of Lease Rental Revenue Number of Lessees Combined % of Lease Rental Revenue Number of Lessees Combined % of Lease Rental Revenue Number of Lessees Combined % of Lease Largest lessees by lease rental revenue 3 19% 3 19% 3 19% 3 19% At June 30, 2018 and December 31, 2017 , no country represented at least 10% of total revenue based on each counterparty’s principal place of business. Geographic concentration of net book value of flight equipment (including flight equipment held for lease and net investment in finance and sales-type leases, or “net book value”) was as follows: June 30, 2018 December 31, 2017 Region Number of Aircraft Net Book Value % Number of Aircraft Net Book Value % Asia and Pacific 62 30 % 59 30 % Europe 87 30 % 92 32 % Middle East and Africa 17 9 % 15 9 % North America 36 12 % 32 10 % South America 26 19 % 25 19 % Off-lease — — % 1 (1) — % Total 228 100 % 224 100 % _______________ (1) Consisted of one Airbus A321-200 aircraft, which was delivered on lease to a customer in the second quarter of 2018. At June 30, 2018 and December 31, 2017 , no country represented at least 10% of net book value of flight equipment based on each lessee’s principal place of business. At June 30, 2018 and December 31, 2017 , the amounts of lease incentive liabilities recorded in maintenance payments on our Consolidated Balance Sheets were $15,709 and $11,496 , respectively.

Net Investment in Finance Lease

Net Investment in Finance Leases	6 Months Ended
	Jun. 30, 2018
Leases [Abstract]
Net Investment in Finance Leases	Net Investment in Finance and Sales-Type Leases At June 30, 2018 , our net investment in finance and sales-type leases consisted of 30 aircraft. The following table lists the components of our net investment in finance and sales-type leases at June 30, 2018 : Amount Total lease payments to be received $ 298,808 Less: Unearned income (148,283 ) Estimated residual values of leased flight equipment (unguaranteed) 376,213 Net investment in finance and sales-type leases $ 526,738 At June 30, 2018 , minimum future lease payments on finance and sales-type leases are as follows: Year Ending December 31, Amount Remainder of 2018 $ 35,080 2019 66,285 2020 63,840 2021 53,057 2022 42,460 Thereafter 38,086 Total lease payments to be received $ 298,808

Unconsolidated Equity Method In

Unconsolidated Equity Method Investment (Notes)	6 Months Ended
	Jun. 30, 2018
Equity Method Investments and Joint Ventures [Abstract]
Unconsolidated Equity Method Investment	Unconsolidated Equity Method Investments We have joint ventures with an affiliate of Ontario Teachers’ Pension Plan (“Teachers’”) and with the leasing arm of the Industrial Bank of Japan, Limited (“IBJL”). At June 30, 2018 , the net book value of both joint ventures’ twelve aircraft was approximately $628,000 . Amount Investment in joint ventures at December 31, 2017 $ 76,982 Investment in joint ventures 355 Earnings from joint ventures, net of tax 3,663 Distributions (900 ) Investment in joint ventures at June 30, 2018 $ 80,100 The Company has recorded in its Consolidated Balance Sheet a $13,200 guarantee liability in Maintenance payments and a $5,100 guarantee liability in Security deposits representing its share of the respective exposures.

Variable Interest Entities

Variable Interest Entities	6 Months Ended
	Jun. 30, 2018
Variable Interest Entities [Abstract]
Variable Interest Entities	Variable Interest Entities Aircastle consolidates four VIEs of which it is the primary beneficiary. The operating activities of these VIEs are limited to acquiring, owning, leasing, maintaining, operating and, under certain circumstances, selling the six aircraft discussed below. ECA Financings Aircastle, through various subsidiaries, each of which is owned by a charitable trust (such entities, collectively the “Air Knight VIEs”), has entered into six different twelve -year term loans, which are supported by guarantees from Compagnie Française d'Assurance pour le Commerce Extérieur, (“COFACE”), the French government sponsored export credit agency (“ECA”). We refer to these COFACE-supported financings as “ECA Financings.” Aircastle is the primary beneficiary of the Air Knight VIEs, as we have the power to direct the activities of the VIEs that most significantly impact the economic performance of such VIEs and we bear the significant risk of loss and participate in gains through a finance lease. The activity that most significantly impacts the economic performance is the leasing of aircraft of which our wholly owned subsidiary is the servicer and is responsible for managing the relevant aircraft. There is a cross collateralization guarantee between the Air Knight VIEs. In addition, Aircastle guarantees the debt of the Air Knight VIEs. The only assets that the Air Knight VIEs have on their books are financing leases that are eliminated in the consolidated financial statements. The related aircraft, with a net book value as of June 30, 2018 of $403,835 , were included in our flight equipment held for lease. The consolidated debt outstanding, net of debt issuance costs, of the Air Knight VIEs as of June 30, 2018 is $203,882 .

Secured and Unsecured Debt Fina

Secured and Unsecured Debt Financings	6 Months Ended
	Jun. 30, 2018
Debt Disclosure [Abstract]
Secured and Unsecured Debt Financings	Secured and Unsecured Debt Financings The outstanding amounts of our secured and unsecured term debt financings are as follows: At June 30, 2018 At December 31, 2017 Debt Obligation Outstanding Borrowings Number of Aircraft Interest Rate Final Stated Maturity Outstanding Secured Debt Financings: ECA Financings (1) $ 208,448 6 3.02% to 3.96% 12/03/21 to 11/30/24 $ 227,491 Bank Financings (2) 600,883 23 2.22% to 4.49% 09/11/18 to 01/19/26 634,898 Less: Debt Issuance Costs (10,809 ) — (12,515 ) Total secured debt financings, net of debt issuance costs 798,522 29 849,874 Unsecured Debt Financings: Senior Notes due 2018 400,000 4.625% 12/15/18 400,000 Senior Notes due 2019 500,000 6.25% 12/01/19 500,000 Senior Notes due 2020 300,000 7.625% 04/15/20 300,000 Senior Notes due 2021 500,000 5.125% 03/15/21 500,000 Senior Notes due 2022 500,000 5.50% 02/15/22 500,000 Senior Notes due 2023 500,000 5.00% 04/01/23 500,000 Senior Notes due 2024 500,000 4.125% 05/01/24 500,000 Unsecured Term Loan 120,000 4.335% 04/28/19 120,000 Revolving Credit Facilities 100,000 4.19% 11/21/19 to 06/27/22 175,000 Less: Debt Issuance Costs (27,831 ) (31,268 ) Total unsecured debt financings, net of debt issuance costs 3,392,169 3,463,732 Total secured and unsecured debt financings, net of debt issuance costs $ 4,190,691 $ 4,313,606 (1) The borrowings under these financings at June 30, 2018 have a weighted-average rate of interest of 3.58% . (2) The borrowings under these financings at June 30, 2018 have a weighted-average fixed rate of interest of 4.24% . Unsecured Debt Financings: Revolving Credit Facility On June 27, 2018, we increased the size of one of our unsecured revolving credit facilities from $675,000 to $800,000 and extended its maturity by more than two years to June 2022 and the interest rate decreased from LIBOR plus 2.25% to LIBOR plus 1.50% . At June 30, 2018 , we had $100,000 outstanding under our revolving credit facilities. As of June 30, 2018 , we were in compliance with all applicable covenants in our financings.

Shareholders' Equity and Share

Shareholders' Equity and Share Based Payment	6 Months Ended
	Jun. 30, 2018
Shareholders’ Equity and Share Based Payment [Abstract]
Shareholders’ Equity and Share Based Payment	Shareholders' Equity and Share-Based Payment During the six months ended June 30, 2018 , the Company issued 291,876 restricted common shares and issued 306,359 performance share units (“PSUs”). These awards were made under the Aircastle Limited Amended and Restated 2014 Omnibus Incentive Plan. During the six months ended June 30, 2018 , the Company incurred share-based compensation expense of $2,813 related to restricted common shares and $2,641 related to PSUs. As of June 30, 2018 , there was $7,249 of unrecognized compensation cost related to unvested restricted common share-based payments and $9,276 of unrecognized compensation cost related to unvested PSU share-based payments that are expected to be recognized over a weighted-average remaining period of 1.95 years . During the six months ended June 30, 2018 , we repurchased 638,636 common shares at an aggregate cost of $12,492 , including commissions. At June 30, 2018 , the remaining dollar value of shares that may be repurchased under the repurchase program approved by our Board of Directors on February 9, 2016 is $83,396 .

Dividends

Dividends	6 Months Ended
	Jun. 30, 2018
Dividends [Abstract]
Dividends	Dividends The following table sets forth the quarterly dividends declared by our Board of Directors for the periods covered in this report: Declaration Date Dividend per Common Share Aggregate Dividend Amount Record Date Payment Date May 1, 2018 $ 0.28 $ 21,908 May 31, 2018 June 15, 2018 February 9, 2018 $ 0.28 $ 22,085 February 28, 2018 March 15, 2018 October 31, 2017 $ 0.28 $ 22,039 November 30, 2017 December 15, 2017 August 4, 2017 $ 0.26 $ 20,464 August 31, 2017 September 15, 2017 May 2, 2017 $ 0.26 $ 20,482 May 31, 2017 June 15, 2017

Earnings Per Share

Earnings Per Share	6 Months Ended
	Jun. 30, 2018
Earnings Per Share [Abstract]
Earnings Per Share	Earnings (Loss) Per Share We include all common shares granted under our incentive compensation plan which remain unvested (“restricted common shares”) and contain non-forfeitable rights to dividends or dividend equivalents, whether paid or unpaid (“participating securities”), in the number of shares outstanding in our basic earnings per share calculations using the two-class method. All of our restricted common shares are currently participating securities. Our PSUs are contingently issuable shares which are included in our diluted earnings per share calculations which do not include voting or dividend rights. Under the two-class method, earnings per common share is computed by dividing the sum of distributed earnings allocated to common shareholders and undistributed earnings allocated to common shareholders by the weighted-average number of common shares outstanding for the period. In applying the two-class method, distributed and undistributed earnings are allocated to both common shares and restricted common shares based on the total weighted-average shares outstanding during the period. As the holders of the participating restricted common shares are not contractually required to share in the Company’s losses, in applying the two-class method to compute the basic and diluted net loss per common share no allocation to restricted common shares was made for the three months ended June 30, 2017 . Three Months Ended June 30, Six Months Ended June 30, 2018 2017 2018 2017 Weighted-average shares: Common shares outstanding 77,910,513 78,176,705 78,137,290 78,176,705 Restricted common shares 498,433 634,217 464,983 569,370 Total weighted-average shares 78,408,946 78,810,922 78,602,273 78,746,075 Percentage of weighted-average shares: Common shares outstanding 99.36 % 99.20 % 99.41 % 99.28 % Restricted common shares 0.64 % 0.80 % 0.59 % 0.72 % Total percentage of weighted-average shares 100.00 % 100.00 % 100.00 % 100.00 % The calculations of both basic and diluted earnings per share are as follows: Three Months Ended June 30, Six Months Ended June 30, 2018 2017 2018 2017 Earnings (loss) per share – Basic: Net income (loss) $ 50,203 $ (7,116 ) $ 107,750 $ 35,323 Less: Distributed and undistributed earnings allocated to restricted common shares (1) (319 ) — (637 ) (255 ) Earnings (loss) available to common shareholders – Basic $ 49,884 $ (7,116 ) $ 107,113 $ 35,068 Weighted-average common shares outstanding – Basic 77,910,513 78,176,705 78,137,290 78,176,705 Earnings (loss) per common share – Basic $ 0.64 $ (0.09 ) $ 1.37 $ 0.45 Earnings (loss) per share – Diluted: Net income (loss) $ 50,203 $ (7,116 ) $ 107,750 $ 35,323 Less: Distributed and undistributed earnings allocated to restricted common shares (1) (319 ) — (637 ) (255 ) Earnings (loss) available to common shareholders – Diluted $ 49,884 $ (7,116 ) $ 107,113 $ 35,068 Weighted-average common shares outstanding – Basic 77,910,513 78,176,705 78,137,290 78,176,705 Effect of dilutive shares (2) 337,716 — 282,868 227,350 Weighted-average common shares outstanding – Diluted 78,248,229 78,176,705 78,420,158 78,404,055 Earnings (loss) per common share – Diluted $ 0.64 $ (0.09 ) $ 1.37 $ 0.45 (1) For the three months ended June 30, 2018 , distributed and undistributed earnings to restricted shares was 0.64% of net income. For the three months ended June 30, 2017 , the effect of any diluted shares on distributed and undistributed earnings to restricted shares would have been anti-dilutive and was excluded from the calculation. For the six months ended June 30, 2018 and 2017 , distributed and undistributed earnings to restricted shares were 0.59% and 0.72% , respectively, of net income. The amount of restricted share forfeitures for all periods presented is immaterial to the allocation of distributed and undistributed earnings. (2) For the three months ended June 30, 2018 and for the six months ended June 30, 2018 and 2017 , dilutive shares represented contingently issuable shares. For the three months ended June 30, 2017 , the effect of 170,116 contingently issuable shares related to the Company’s PSUs would have been anti-dilutive and were excluded from the calculation.

Income Taxes

Income Taxes	6 Months Ended
	Jun. 30, 2018
Income Tax Disclosure [Abstract]
Income Taxes	Income Taxes Income taxes have been provided based on the tax laws and rates in countries in which our operations are conducted and income is earned. The Company received an assurance from the Bermuda Minister of Finance that it would be exempted from local income, withholding and capital gains taxes until March 2035. Consequently, the provision for income taxes relates to income earned by certain subsidiaries of the Company which are located in, or earn income in, jurisdictions that impose income taxes, primarily Ireland and the United States. The sources of income (loss) from continuing operations before income taxes and earnings of our unconsolidated equity method investments for the three and six months ended June 30, 2018 and 2017 were as follows: Three Months Ended June 30, Six Months Ended June 30, 2018 2017 2018 2017 U.S. operations $ 788 $ 902 $ 1,471 $ 1,498 Non-U.S. operations 50,666 (9,789 ) 104,904 31,658 Income (loss) from continuing operations before income taxes and earnings of unconsolidated equity method investments $ 51,454 $ (8,887 ) $ 106,375 $ 33,156 Our aircraft-owning subsidiaries that are recognized as corporations for U.S. tax purposes are primarily non-U.S. corporations. These subsidiaries generally earn income from sources outside the United States and typically are not subject to U.S. federal, state or local income taxes. The aircraft owning subsidiaries resident in Ireland, Mauritius and the U.S. are subject to tax in those respective jurisdictions. We have a U.S. based subsidiary which provides management services to our subsidiaries and is subject to U.S. federal, state and local income taxes. We also have Ireland and Singapore based subsidiaries which provide management services to our non-U.S. subsidiaries and are subject to tax in those respective jurisdictions. The consolidated income tax expense for the three and six months ended June 30, 2018 and 2017 was determined based on estimates of the Company’s consolidated effective income tax rates for the years ending December 31, 2018 and 2017, respectively. The Company’s effective tax rate (“ETR”) for the three and six months ended June 30, 2018 was 6.1% and 2.2% , respectively, compared to (5.6)% and 7.1% , respectively, for the three and six months ended June 30, 2017 . The first quarter 2018 included a $2,779 tax benefit related to the Singapore rate reduction from 10% to 8% , which was treated as a discrete item. Excluding this tax benefit, the ETR would have been 4.8% for the six months ended June 30, 2018 . The pre-tax earnings (loss) for the three and six months ended June 30, 2017 included impairment charges of approximately $79,930 and $80,430 , respectively, in a non-taxable jurisdiction. Movements in the ETR are generally caused by changes in the proportion of the Company’s pre-tax earnings in taxable and non-tax jurisdictions. Differences between statutory income tax rates and our effective income tax rates applied to pre-tax income (loss) from continuing operations consisted of the following: Three Months Ended June 30, Six Months Ended June 30, 2018 2017 2018 2017 Notional U.S. federal income tax expense at the statutory rate $ 10,806 $ (3,110 ) $ 22,339 $ 11,605 U.S. state and local income tax, net 55 48 103 89 Non-U.S. operations: Bermuda (6,112 ) 10,456 (14,395 ) 1,628 Ireland (811 ) (796 ) (1,128 ) (254 ) Singapore — (4,662 ) (2,824 ) (7,589 ) Other low tax jurisdictions (835 ) (1,487 ) (1,643 ) (2,927 ) Non-deductible expenses in the U.S. 29 55 (164 ) (194 ) Other — (9 ) — (17 ) Income tax provision $ 3,132 $ 495 $ 2,288 $ 2,341

Interest, Net

Interest, Net	6 Months Ended
	Jun. 30, 2018
Interest Income (Expense), Net [Abstract]
Interest Net	Interest, Net The following table shows the components of interest, net: Three Months Ended June 30, Six Months Ended June 30, 2018 2017 2018 2017 Interest on borrowings and other liabilities (1) $ 53,979 $ 56,859 $ 107,957 $ 115,698 Amortization of deferred losses related to interest rate derivatives 294 575 595 1,156 Amortization of deferred financing fees and debt discount (2) 3,510 4,970 7,042 9,125 Interest expense 57,783 62,404 115,594 125,979 Less: Interest income (287 ) (614 ) (990 ) (1,028 ) Less: Capitalized interest (98 ) (118 ) (98 ) (211 ) Interest, net $ 57,398 $ 61,672 $ 114,506 $ 124,740 (1) Includes $988 in loan termination fees related to the prepayment of debt on three aircraft during the three and six months ended June 30, 2017 . (2) Includes $986 in deferred financing fees written off related to the prepayment of debt on three aircraft during the three and six months ended June 30, 2017 .

Commitments and Contingencies

Commitments and Contingencies	6 Months Ended
	Jun. 30, 2018
Commitments and Contingencies Disclosure [Abstract]
Commitments and Contingencies	Commitments and Contingencies At June 30, 2018 , we had commitments to acquire 48 aircraft for $1,876,908 , including 25 Embraer E-Jet E2 aircraft. Commitments, including $125,866 of remaining progress payments, contractual price escalations and other adjustments for these aircraft, at June 30, 2018 , net of amounts already paid, are as follows: Year Ending December 31, Amount Remainder of 2018 $ 830,882 2019 382,620 2020 390,416 2021 272,990 2022 — Thereafter — Total $ 1,876,908 As of August 3, 2018 , we had commitments to acquire 46 aircraft for $1,838,708 .

Other Assets

Other Assets	6 Months Ended
	Jun. 30, 2018
Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Abstract]
Other Assets	Other Assets The following table describes the principal components of other assets on our Consolidated Balance Sheets as of: June 30, December 31, Deferred income tax asset $ 491 $ 497 Lease incentives and lease premiums, net of amortization of $40,460 and $41,246, respectively 84,032 74,515 Flight equipment held for sale 2,238 707 Aircraft purchase deposits and progress payments 29,569 23,704 Fair value of interest rate cap 7,329 3,254 Note receivable (1) 6,678 10,000 Other assets 43,970 28,533 Total other assets $ 174,307 $ 141,210 ______________ (1) Related to the sale of aircraft during the year ended December 31, 2017 .

Accounts Payable, Accrued Expen

Accounts Payable, Accrued Expenses and Other Liabilities	6 Months Ended
	Jun. 30, 2018
Payables and Accruals [Abstract]
Accounts Payable, Accrued Expenses and Other Liabilities	Accounts Payable, Accrued Expenses and Other Liabilities The following table describes the principal components of accounts payable, accrued expenses and other liabilities recorded on our Consolidated Balance Sheets as of: June 30, December 31, Accounts payable and accrued expenses $ 42,886 $ 50,948 Deferred income tax liability 39,597 36,547 Accrued interest payable 37,927 38,129 Lease discounts, net of amortization of $40,106 and $36,111, respectively 10,954 14,597 Total accounts payable, accrued expenses and other liabilities $ 131,364 $ 140,221

Summary of Significant Accoun24

Summary of Significant Accounting Policies (Policies)	6 Months Ended
	Jun. 30, 2018
Accounting Policies [Abstract]
Organization and Basis of Presentation	Aircastle is a holding company that conducts its business through subsidiaries. Aircastle directly or indirectly owns all of the outstanding common shares of its subsidiaries. The consolidated financial statements presented are prepared in accordance with U.S. generally accepted accounting principles (“U.S. GAAP”). The Company manages, analyzes and reports on its business and results of operations on the basis of one operating segment: leasing, financing, selling and managing commercial flight equipment. Our Chief Executive Officer is the chief operating decision maker. The accompanying consolidated financial statements are unaudited and have been prepared pursuant to the rules and regulations of the Securities and Exchange Commission (the “SEC”) for interim financial reporting and, in our opinion, reflect all adjustments, including normal recurring items, which are necessary to present fairly the results for interim periods. Operating results for the periods presented are not necessarily indicative of the results that may be expected for the entire year. Certain information and footnote disclosures normally included in consolidated financial statements prepared in accordance with U.S. GAAP have been omitted in accordance with the rules and regulations of the SEC; however, we believe that the disclosures are adequate to make information presented not misleading. These financial statements should be read in conjunction with the consolidated financial statements and notes thereto included in the Company’s Annual Report on Form 10-K for the year ended December 31, 2017 .
Principles of Consolidation	Principles of Consolidation The consolidated financial statements include the accounts of Aircastle and all of its subsidiaries. Aircastle consolidates four Variable Interest Entities (“VIEs”) of which Aircastle is the primary beneficiary. All intercompany transactions and balances have been eliminated in consolidation. We consolidate VIEs in which we have determined that we are the primary beneficiary. We use judgment when deciding: (a) whether an entity is subject to consolidation as a VIE; (b) who the variable interest holders are; (c) the potential expected losses and residual returns of the variable interest holders; and (d) which variable interest holder is the primary beneficiary. When determining which enterprise is the primary beneficiary, we consider: (1) the entity’s purpose and design; (2) which variable interest holder has the power to direct the activities that most significantly impact the entity’s economic performance; and (3) the obligation to absorb losses of the entity or the right to receive benefits from the entity that could potentially be significant to the VIE. When certain events occur, we reconsider whether we are the primary beneficiary of VIEs. We do not reconsider whether we are a primary beneficiary solely because of operating losses incurred by an entity.
Use of Estimates	Use of Estimates The preparation of financial statements in conformity with U.S. GAAP requires management to make estimates and assumptions that affect the amounts reported in the consolidated financial statements and accompanying notes. While Aircastle believes that the estimates and related assumptions used in the preparation of the consolidated financial statements are appropriate, actual results could differ from those estimates.
New Accounting Pronouncements, Policy [Policy Text Block]	Recent Accounting Pronouncements On February 25, 2016, the FASB issued ASC 842, Leases (“ASC 842”) which, together with all subsequent amendments, replaced the existing guidance in ASC 840, Leases (“ASC 840”). The accounting for leases by lessors basically remained unchanged from the concepts that existed in ASC 840 accounting. The FASB decided that lessors would be precluded from recognizing selling profit and revenue at lease commencement for any sales-type or direct finance lease that does not transfer control of the underlying asset to the lessee. This requirement aligns the notion of what constitutes a sale in the lessor accounting guidance with that in the forthcoming revenue recognition standard, which evaluates whether a sale has occurred from the customer’s perspective. The standard will be effective for reporting periods beginning after December 15, 2018. We plan to adopt the standard on its required effective date of January 1, 2019, using the “modified retrospective” approach and are reviewing which, if any, practical expedients to use. We are also evaluating the impact that ASC 842 will have on our consolidated financial statements and related disclosures. We do not believe that the adoption of the standard will significantly impact our existing or potential lessees' economic decisions to lease aircraft. In June 2016, the FASB issued ASU No. 2016-13, Financial Instruments - Credit Losses (Topic 326), Measurement of Credit Losses on Financial Instruments . The standard affects entities holding financial assets and net investment in leases that are not accounted for at fair value through net income. The amendments affect loans, debt securities, trade receivables, net investments in leases, off-balance-sheet credit exposures, reinsurance receivables, and any other financial assets not excluded from the scope that have the contractual right to receive cash. The standard is applied on a modified retrospective approach. The standard is effective for annual periods beginning after December 15, 2019, including interim periods within those fiscal years. Early adoption is permitted as early as the fiscal years beginning after December 15, 2018, including interim periods within those fiscal years. We are in the process of determining the impact the standard will have on our consolidated financial statements and related disclosures.

Fair Value Measurements (Tables

Fair Value Measurements (Tables)	6 Months Ended
	Jun. 30, 2018
Fair Value Disclosures [Abstract]
Fair value assets and liabilities measured on recurring basis	The following tables set forth our financial assets as of June 30, 2018 and December 31, 2017 that we measured at fair value on a recurring basis by level within the fair value hierarchy. Assets measured at fair value are classified in their entirety based on the lowest level of input that is significant to their fair value measurement. Fair Value Measurements at June 30, 2018 Using Fair Value Hierarchy Fair Value as of June 30, 2018 Quoted Prices in Active Markets for Identical Assets (Level 1) Significant Other Observable Inputs (Level 2) Significant Unobservable Inputs (Level 3) Valuation Technique Assets: Cash and cash equivalents $ 142,360 $ 142,360 $ — $ — Market Restricted cash and cash equivalents 20,880 20,880 — — Market Derivative assets 7,329 — 7,329 — Market Total $ 170,569 $ 163,240 $ 7,329 $ — Fair Value Measurements at December 31, 2017 Using Fair Value Hierarchy Fair Value as of December 31, 2017 Quoted Prices in Active Markets for Identical Assets (Level 1) Significant Other Observable Inputs (Level 2) Significant Unobservable Inputs (Level 3) Valuation Technique Assets: Cash and cash equivalents $ 211,922 $ 211,922 $ — $ — Market Restricted cash and cash equivalents 21,935 21,935 — — Market Derivative assets 3,254 — 3,254 — Market Total $ 237,111 $ 233,857 $ 3,254 $ —
Carrying amounts and fair values of financial instruments	The carrying amounts and fair values of our financial instruments at June 30, 2018 and December 31, 2017 were as follows: June 30, 2018 December 31, 2017 Carrying Amount of Liability Fair Value of Liability Carrying Amount of Liability Fair Value of Liability Credit Facilities $ 100,000 $ 100,000 $ 175,000 $ 175,000 Unsecured Term Loan 120,000 120,000 120,000 120,000 ECA Financings 208,448 208,823 227,491 232,030 Bank Financings 600,883 602,468 634,898 634,132 Senior Notes 3,200,000 3,246,700 3,200,000 3,367,245

Lease Rental Revenues and Fli26

Lease Rental Revenues and Flight Equipment Held for Lease (Tables)	6 Months Ended
	Jun. 30, 2018
Leases [Abstract]
Annual future minimum lease rentals receivable	Minimum future annual lease rentals contracted to be received under our existing operating leases of flight equipment at June 30, 2018 were as follows: Year Ending December 31, Amount Remainder of 2018 $ 373,563 2019 679,349 2020 576,304 2021 459,712 2022 367,244 Thereafter 725,712 Total $ 3,181,884
Geographic concentration of lease rental revenue earnings	Geographic concentration of lease rental revenue earned from flight equipment held for lease was as follows: Three Months Ended June 30, Six Months Ended June 30, Region 2018 2017 2018 2017 Asia and Pacific 35 % 37 % 35 % 39 % Europe 29 % 24 % 29 % 23 % Middle East and Africa 11 % 12 % 11 % 12 % North America 8 % 8 % 8 % 7 % South America 17 % 19 % 17 % 19 % Total 100 % 100 % 100 % 100 %
Schedule of Revenue by Major Customers by Reporting Segments [Table Text Block]	The following table shows the number of lessees with lease rental revenue of at least 5% and their combined total percentage of lease rental revenue for the years indicated: Three Months Ended June 30, Six Months Ended June 30, 2018 2017 2018 2017 Number of Lessees Combined % of Lease Rental Revenue Number of Lessees Combined % of Lease Rental Revenue Number of Lessees Combined % of Lease Rental Revenue Number of Lessees Combined % of Lease Largest lessees by lease rental revenue 3 19% 3 19% 3 19% 3 19%
Schedule of Revenue from External Customers and Long-Lived Assets, by Geographical Areas [Table Text Block]
Geographic concentration of net book value of flight equipment held for lease	Geographic concentration of net book value of flight equipment (including flight equipment held for lease and net investment in finance and sales-type leases, or “net book value”) was as follows: June 30, 2018 December 31, 2017 Region Number of Aircraft Net Book Value % Number of Aircraft Net Book Value % Asia and Pacific 62 30 % 59 30 % Europe 87 30 % 92 32 % Middle East and Africa 17 9 % 15 9 % North America 36 12 % 32 10 % South America 26 19 % 25 19 % Off-lease — — % 1 (1) — % Total 228 100 % 224 100 % _______________ (1)
Schedule of Disclosure on Geographic Areas, Long-Lived Assets in Individual Foreign Countries by Country [Table Text Block]	At June 30, 2018 and December 31, 2017 , no country represented at least 10% of net book value of flight equipment based on each lessee’s principal place of business.

Net Investment in Finance Lea27

Net Investment in Finance Leases (Tables)	6 Months Ended
	Jun. 30, 2018
Leases [Abstract]
Schedule Of Components Of Investment In Finance Leases	The following table lists the components of our net investment in finance and sales-type leases at June 30, 2018 : Amount Total lease payments to be received $ 298,808 Less: Unearned income (148,283 ) Estimated residual values of leased flight equipment (unguaranteed) 376,213 Net investment in finance and sales-type leases $ 526,738
Schedule of Future Minimum Lease Payments for Capital Leases	At June 30, 2018 , minimum future lease payments on finance and sales-type leases are as follows: Year Ending December 31, Amount Remainder of 2018 $ 35,080 2019 66,285 2020 63,840 2021 53,057 2022 42,460 Thereafter 38,086 Total lease payments to be received $ 298,808

Unconsolidated Equity Method 28

Unconsolidated Equity Method Investment (Tables)	6 Months Ended
	Jun. 30, 2018
Equity Method Investments and Joint Ventures [Abstract]
Equity Method Investments	At June 30, 2018 , the net book value of both joint ventures’ twelve aircraft was approximately $628,000 . Amount Investment in joint ventures at December 31, 2017 $ 76,982 Investment in joint ventures 355 Earnings from joint ventures, net of tax 3,663 Distributions (900 ) Investment in joint ventures at June 30, 2018 $ 80,100 The Company has recorded in its Consolidated Balance Sheet a $13,200 guarantee liability in Maintenance payments and a $5,100 guarantee liability in Security deposits representing its share of the respective exposures.

Secured and Unsecured Debt Fi29

Secured and Unsecured Debt Financings (Tables)	6 Months Ended
	Jun. 30, 2018
Debt Disclosure [Abstract]
Outstanding amounts of secured and unsecured term debt financings	The outstanding amounts of our secured and unsecured term debt financings are as follows: At June 30, 2018 At December 31, 2017 Debt Obligation Outstanding Borrowings Number of Aircraft Interest Rate Final Stated Maturity Outstanding Secured Debt Financings: ECA Financings (1) $ 208,448 6 3.02% to 3.96% 12/03/21 to 11/30/24 $ 227,491 Bank Financings (2) 600,883 23 2.22% to 4.49% 09/11/18 to 01/19/26 634,898 Less: Debt Issuance Costs (10,809 ) — (12,515 ) Total secured debt financings, net of debt issuance costs 798,522 29 849,874 Unsecured Debt Financings: Senior Notes due 2018 400,000 4.625% 12/15/18 400,000 Senior Notes due 2019 500,000 6.25% 12/01/19 500,000 Senior Notes due 2020 300,000 7.625% 04/15/20 300,000 Senior Notes due 2021 500,000 5.125% 03/15/21 500,000 Senior Notes due 2022 500,000 5.50% 02/15/22 500,000 Senior Notes due 2023 500,000 5.00% 04/01/23 500,000 Senior Notes due 2024 500,000 4.125% 05/01/24 500,000 Unsecured Term Loan 120,000 4.335% 04/28/19 120,000 Revolving Credit Facilities 100,000 4.19% 11/21/19 to 06/27/22 175,000 Less: Debt Issuance Costs (27,831 ) (31,268 ) Total unsecured debt financings, net of debt issuance costs 3,392,169 3,463,732 Total secured and unsecured debt financings, net of debt issuance costs $ 4,190,691 $ 4,313,606 (1) The borrowings under these financings at June 30, 2018 have a weighted-average rate of interest of 3.58% . (2) The borrowings under these financings at June 30, 2018 have a weighted-average fixed rate of interest of 4.24% .

Dividends (Tables)

Dividends (Tables)	6 Months Ended
	Jun. 30, 2018
Dividends [Abstract]
Quarterly dividends declared by board of directors	The following table sets forth the quarterly dividends declared by our Board of Directors for the periods covered in this report: Declaration Date Dividend per Common Share Aggregate Dividend Amount Record Date Payment Date May 1, 2018 $ 0.28 $ 21,908 May 31, 2018 June 15, 2018 February 9, 2018 $ 0.28 $ 22,085 February 28, 2018 March 15, 2018 October 31, 2017 $ 0.28 $ 22,039 November 30, 2017 December 15, 2017 August 4, 2017 $ 0.26 $ 20,464 August 31, 2017 September 15, 2017 May 2, 2017 $ 0.26 $ 20,482 May 31, 2017 June 15, 2017

Earnings Per Share (Tables)

Earnings Per Share (Tables)	6 Months Ended
	Jun. 30, 2018
Earnings Per Share [Abstract]
Allocation of distributed and undistributed earnings to both common shares and restricted common shares	Under the two-class method, earnings per common share is computed by dividing the sum of distributed earnings allocated to common shareholders and undistributed earnings allocated to common shareholders by the weighted-average number of common shares outstanding for the period. In applying the two-class method, distributed and undistributed earnings are allocated to both common shares and restricted common shares based on the total weighted-average shares outstanding during the period. As the holders of the participating restricted common shares are not contractually required to share in the Company’s losses, in applying the two-class method to compute the basic and diluted net loss per common share no allocation to restricted common shares was made for the three months ended June 30, 2017 . Three Months Ended June 30, Six Months Ended June 30, 2018 2017 2018 2017 Weighted-average shares: Common shares outstanding 77,910,513 78,176,705 78,137,290 78,176,705 Restricted common shares 498,433 634,217 464,983 569,370 Total weighted-average shares 78,408,946 78,810,922 78,602,273 78,746,075 Percentage of weighted-average shares: Common shares outstanding 99.36 % 99.20 % 99.41 % 99.28 % Restricted common shares 0.64 % 0.80 % 0.59 % 0.72 % Total percentage of weighted-average shares 100.00 % 100.00 % 100.00 % 100.00 %
Basic and Diluted earnings per share	The calculations of both basic and diluted earnings per share are as follows: Three Months Ended June 30, Six Months Ended June 30, 2018 2017 2018 2017 Earnings (loss) per share – Basic: Net income (loss) $ 50,203 $ (7,116 ) $ 107,750 $ 35,323 Less: Distributed and undistributed earnings allocated to restricted common shares (1) (319 ) — (637 ) (255 ) Earnings (loss) available to common shareholders – Basic $ 49,884 $ (7,116 ) $ 107,113 $ 35,068 Weighted-average common shares outstanding – Basic 77,910,513 78,176,705 78,137,290 78,176,705 Earnings (loss) per common share – Basic $ 0.64 $ (0.09 ) $ 1.37 $ 0.45 Earnings (loss) per share – Diluted: Net income (loss) $ 50,203 $ (7,116 ) $ 107,750 $ 35,323 Less: Distributed and undistributed earnings allocated to restricted common shares (1) (319 ) — (637 ) (255 ) Earnings (loss) available to common shareholders – Diluted $ 49,884 $ (7,116 ) $ 107,113 $ 35,068 Weighted-average common shares outstanding – Basic 77,910,513 78,176,705 78,137,290 78,176,705 Effect of dilutive shares (2) 337,716 — 282,868 227,350 Weighted-average common shares outstanding – Diluted 78,248,229 78,176,705 78,420,158 78,404,055 Earnings (loss) per common share – Diluted $ 0.64 $ (0.09 ) $ 1.37 $ 0.45 (1) For the three months ended June 30, 2018 , distributed and undistributed earnings to restricted shares was 0.64% of net income. For the three months ended June 30, 2017 , the effect of any diluted shares on distributed and undistributed earnings to restricted shares would have been anti-dilutive and was excluded from the calculation. For the six months ended June 30, 2018 and 2017 , distributed and undistributed earnings to restricted shares were 0.59% and 0.72% , respectively, of net income. The amount of restricted share forfeitures for all periods presented is immaterial to the allocation of distributed and undistributed earnings. (2) For the three months ended June 30, 2018 and for the six months ended June 30, 2018 and 2017 , dilutive shares represented contingently issuable shares. For the three months ended June 30, 2017 , the effect of 170,116 contingently issuable shares related to the Company’s PSUs would have been anti-dilutive and were excluded from the calculation.

Income Taxes (Tables)

Income Taxes (Tables)	6 Months Ended
	Jun. 30, 2018
Income Tax Disclosure [Abstract]
Sources of income from continuing operations before income taxes	The sources of income (loss) from continuing operations before income taxes and earnings of our unconsolidated equity method investments for the three and six months ended June 30, 2018 and 2017 were as follows: Three Months Ended June 30, Six Months Ended June 30, 2018 2017 2018 2017 U.S. operations $ 788 $ 902 $ 1,471 $ 1,498 Non-U.S. operations 50,666 (9,789 ) 104,904 31,658 Income (loss) from continuing operations before income taxes and earnings of unconsolidated equity method investments $ 51,454 $ (8,887 ) $ 106,375 $ 33,156
Analysis of effective income tax rate for continuing operations	Differences between statutory income tax rates and our effective income tax rates applied to pre-tax income (loss) from continuing operations consisted of the following: Three Months Ended June 30, Six Months Ended June 30, 2018 2017 2018 2017 Notional U.S. federal income tax expense at the statutory rate $ 10,806 $ (3,110 ) $ 22,339 $ 11,605 U.S. state and local income tax, net 55 48 103 89 Non-U.S. operations: Bermuda (6,112 ) 10,456 (14,395 ) 1,628 Ireland (811 ) (796 ) (1,128 ) (254 ) Singapore — (4,662 ) (2,824 ) (7,589 ) Other low tax jurisdictions (835 ) (1,487 ) (1,643 ) (2,927 ) Non-deductible expenses in the U.S. 29 55 (164 ) (194 ) Other — (9 ) — (17 ) Income tax provision $ 3,132 $ 495 $ 2,288 $ 2,341

Interest, Net (Tables)

Interest, Net (Tables)	6 Months Ended
	Jun. 30, 2018
Interest Income (Expense), Net [Abstract]
Components of Interest	The following table shows the components of interest, net: Three Months Ended June 30, Six Months Ended June 30, 2018 2017 2018 2017 Interest on borrowings and other liabilities (1) $ 53,979 $ 56,859 $ 107,957 $ 115,698 Amortization of deferred losses related to interest rate derivatives 294 575 595 1,156 Amortization of deferred financing fees and debt discount (2) 3,510 4,970 7,042 9,125 Interest expense 57,783 62,404 115,594 125,979 Less: Interest income (287 ) (614 ) (990 ) (1,028 ) Less: Capitalized interest (98 ) (118 ) (98 ) (211 ) Interest, net $ 57,398 $ 61,672 $ 114,506 $ 124,740 (1) Includes $988 in loan termination fees related to the prepayment of debt on three aircraft during the three and six months ended June 30, 2017 . (2) Includes $986 in deferred financing fees written off related to the prepayment of debt on three aircraft during the three and six months ended June 30, 2017 .

Commitments and Contingencies C

Commitments and Contingencies Commitments and Contingencies (Tables)	6 Months Ended
	Jun. 30, 2018
Commitments and Contingencies Disclosure [Abstract]
Long-term Purchase Commitment [Table Text Block]	Commitments, including $125,866 of remaining progress payments, contractual price escalations and other adjustments for these aircraft, at June 30, 2018 , net of amounts already paid, are as follows: Year Ending December 31, Amount Remainder of 2018 $ 830,882 2019 382,620 2020 390,416 2021 272,990 2022 — Thereafter — Total $ 1,876,908

Other Assets (Tables)

Other Assets (Tables)	6 Months Ended
	Jun. 30, 2018
Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Abstract]
Principal components of other assets	The following table describes the principal components of other assets on our Consolidated Balance Sheets as of: June 30, December 31, Deferred income tax asset $ 491 $ 497 Lease incentives and lease premiums, net of amortization of $40,460 and $41,246, respectively 84,032 74,515 Flight equipment held for sale 2,238 707 Aircraft purchase deposits and progress payments 29,569 23,704 Fair value of interest rate cap 7,329 3,254 Note receivable (1) 6,678 10,000 Other assets 43,970 28,533 Total other assets $ 174,307 $ 141,210 ______________ (1) Related to the sale of aircraft during the year ended December 31, 2017 .

Accounts Payable, Accrued Exp36

Accounts Payable, Accrued Expenses and Other Liabilities (Tables)	6 Months Ended
	Jun. 30, 2018
Payables and Accruals [Abstract]
Principal components of accounts payable, accrued expenses and other liabilities recorded on our consolidated balance sheet	The following table describes the principal components of accounts payable, accrued expenses and other liabilities recorded on our Consolidated Balance Sheets as of: June 30, December 31, Accounts payable and accrued expenses $ 42,886 $ 50,948 Deferred income tax liability 39,597 36,547 Accrued interest payable 37,927 38,129 Lease discounts, net of amortization of $40,106 and $36,111, respectively 10,954 14,597 Total accounts payable, accrued expenses and other liabilities $ 131,364 $ 140,221

Summary of Significant Accoun37

Summary of Significant Accounting Policies Summary of Significant Accounting Policies (Details) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2018USD ($)	Jun. 30, 2017USD ($)	Jun. 30, 2018USD ($)Entitysegment	Jun. 30, 2017USD ($)
Variable Interest Entity [Line Items]
Revenues, As Previously Reported		$ 223,534		$ 427,807
Number of Operating Segments | segment			1
Gain (Loss) on Disposition of Property Plant Equipment	$ 19,864	13,525	$ 25,632	14,284
Revenues	$ 204,276	$ 237,059	$ 406,956	$ 442,091
Variable Interest Entity, Primary Beneficiary
Variable Interest Entity [Line Items]
Number of Consolidated Variable Interest Entities | Entity			4

Fair Value Measurements (Detail

Fair Value Measurements (Details) - Recurring - USD ($) $ in Thousands	Jun. 30, 2018	Dec. 31, 2017
Quoted Prices in Active Markets for Identical Assets (Level 1)
Assets:
Cash and cash equivalents	$ 142,360	$ 211,922
Restricted cash and cash equivalents	20,880	21,935
Derivative Asset	0	0
Total	163,240	233,857
Significant Other Observable Inputs (Level 2)
Assets:
Cash and cash equivalents	0	0
Restricted cash and cash equivalents	0	0
Derivative Asset	7,329	3,254
Total	7,329	3,254
Significant Unobservable Inputs (Level 3)
Assets:
Cash and cash equivalents	0	0
Restricted cash and cash equivalents	0	0
Derivative Asset	0	0
Total	0	0
Estimate of Fair Value Measurement [Member]
Assets:
Cash and cash equivalents	142,360	211,922
Restricted cash and cash equivalents	20,880	21,935
Derivative Asset	7,329	3,254
Total	$ 170,569	$ 237,111

Fair Value Measurements (Deta39

Fair Value Measurements (Details 2) - Unsecured Debt - Reported Value Measurement - USD ($) $ in Thousands	Jun. 30, 2018	Dec. 31, 2017
Fair Value, Inputs, Level 2 [Member] | Revolving Credit Facility [Member]
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Debt Instrument, Fair Value Disclosure	$ 100,000	$ 175,000
Fair Value, Inputs, Level 1 [Member] | DBJ Term Loan
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Debt Instrument, Fair Value Disclosure	$ 120,000	$ 120,000

Fair Value Measurements (Deta40

Fair Value Measurements (Details 3) - USD ($) $ in Thousands	Jun. 30, 2018	Dec. 31, 2017
Secured Debt | Significant Other Observable Inputs (Level 2) | Estimate of Fair Value Measurement [Member] | ECA Term Financings {Member]
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]
Debt Instrument, Fair Value Disclosure	$ 208,823	$ 232,030
Secured Debt | Significant Other Observable Inputs (Level 2) | Estimate of Fair Value Measurement [Member] | Bank Financings
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]
Debt Instrument, Fair Value Disclosure	602,468	634,132
Secured Debt | Significant Other Observable Inputs (Level 2) | Reported Value Measurement | ECA Term Financings {Member]
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]
Debt Instrument, Fair Value Disclosure	208,448	227,491
Secured Debt | Significant Other Observable Inputs (Level 2) | Reported Value Measurement | Bank Financings
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]
Debt Instrument, Fair Value Disclosure	600,883	634,898
Unsecured Debt | Significant Other Observable Inputs (Level 2) | Estimate of Fair Value Measurement [Member] | Revolving Credit Facility [Member]
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]
Debt Instrument, Fair Value Disclosure	100,000	175,000
Unsecured Debt | Significant Other Observable Inputs (Level 2) | Reported Value Measurement | Revolving Credit Facility [Member]
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]
Debt Instrument, Fair Value Disclosure	100,000	175,000
Unsecured Debt | Quoted Prices in Active Markets for Identical Assets (Level 1) | Estimate of Fair Value Measurement [Member] | DBJ Term Loan
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]
Debt Instrument, Fair Value Disclosure	120,000	120,000
Unsecured Debt | Quoted Prices in Active Markets for Identical Assets (Level 1) | Estimate of Fair Value Measurement [Member] | Senior Notes
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]
Debt Instrument, Fair Value Disclosure	3,246,700	3,367,245
Unsecured Debt | Quoted Prices in Active Markets for Identical Assets (Level 1) | Reported Value Measurement | DBJ Term Loan
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]
Debt Instrument, Fair Value Disclosure	120,000	120,000
Unsecured Debt | Quoted Prices in Active Markets for Identical Assets (Level 1) | Reported Value Measurement | Senior Notes
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]
Debt Instrument, Fair Value Disclosure	$ 3,200,000	$ 3,200,000

Fair Value Measurements (Deta41

Fair Value Measurements (Details Textual) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability, Transfers, Net			$ 0
Asset Impairment Charges	$ 0	$ 79,930	0	$ 80,430
Maintenance Revenue	$ 0	$ 28,944	$ 11,991	$ 41,231

Lease Rental Revenues and Fli42

Lease Rental Revenues and Flight Equipment Held for Lease (Details) $ in Thousands	Jun. 30, 2018USD ($)
Leases [Abstract]
Operating Leases, Future Minimum Payments Receivable, Remainder of Fiscal Year	$ 373,563
Annual future minimum lease rentals receivable
Receivable in Year Two	679,349
Receivable in Year Three	576,304
Receivable in Year Four	459,712
Receivable in Year Five	367,244
Thereafter	725,712
Total	$ 3,181,884

Lease Rental Revenues and Fli43

Lease Rental Revenues and Flight Equipment Held for Lease (Details 1) - Lease Rental Revenue - Geographic Concentration Risk	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Revenues from External Customers and Long-Lived Assets [Line Items]
Percentage of geographic concentration	100.00%	100.00%	100.00%	100.00%
Asia and Pacific
Revenues from External Customers and Long-Lived Assets [Line Items]
Percentage of geographic concentration	29.00%	24.00%	29.00%	23.00%
Europe
Revenues from External Customers and Long-Lived Assets [Line Items]
Percentage of geographic concentration	35.00%	37.00%	35.00%	39.00%
Middle East and Africa
Revenues from External Customers and Long-Lived Assets [Line Items]
Percentage of geographic concentration	8.00%	8.00%	8.00%	7.00%
North America
Revenues from External Customers and Long-Lived Assets [Line Items]
Percentage of geographic concentration	17.00%	19.00%	17.00%	19.00%
Middle East and Africa
Revenues from External Customers and Long-Lived Assets [Line Items]
Percentage of geographic concentration	11.00%	12.00%	11.00%	12.00%

Lease Rental Revenues and Fli44

Lease Rental Revenues and Flight Equipment Held for Lease (Details 2) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2018USD ($)Lessee	Jun. 30, 2017USD ($)Lessee	Jun. 30, 2018USD ($)Lessee	Jun. 30, 2017USD ($)Lessee
Revenue attributable to individual countries
Revenue | $	$ 178,486	$ 189,098	$ 355,969	$ 379,684
Major Customer Group One [Member]
Revenue from External Customer [Line Items]
Concentration Risk, Number of Customers in Major Customer Group | Lessee	3	3	3	3
Major Customer Group One [Member] | Geographic Concentration Risk | Total Revenue [Member]
Revenue attributable to individual countries
Percentage of geographic concentration	19.00%	19.00%	19.00%	19.00%

Lease Rental Revenues and Fli45

Lease Rental Revenues and Flight Equipment Held for Lease (Details 3) $ in Thousands	3 Months Ended		6 Months Ended		12 Months Ended
	Jun. 30, 2018USD ($)Aircraft	Jun. 30, 2017USD ($)	Jun. 30, 2018USD ($)Aircraft	Jun. 30, 2017USD ($)	Dec. 31, 2017Aircraft
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenue | $	$ 178,486	$ 189,098	$ 355,969	$ 379,684
Number of Aircraft	228		228		224
Number of Offlease Aircraft Marketed for Lease or Sale					1
Number of Offlease Aircraft Marketed for Lease	0		0
Asia and Pacific
Revenues from External Customers and Long-Lived Assets [Line Items]
Number of Aircraft	87		87		92
Europe
Revenues from External Customers and Long-Lived Assets [Line Items]
Number of Aircraft	62		62		59
Middle East and Africa
Revenues from External Customers and Long-Lived Assets [Line Items]
Number of Aircraft	36		36		32
North America
Revenues from External Customers and Long-Lived Assets [Line Items]
Number of Aircraft	26		26		25
Middle East and Africa
Revenues from External Customers and Long-Lived Assets [Line Items]
Number of Aircraft	17		17		15
Geographic Concentration Risk | Net Book Value
Revenues from External Customers and Long-Lived Assets [Line Items]
Percentage of geographic concentration			100.00%		100.00%
Geographic Concentration Risk | Net Book Value | Asia and Pacific
Revenues from External Customers and Long-Lived Assets [Line Items]
Percentage of geographic concentration			30.00%		32.00%
Geographic Concentration Risk | Net Book Value | Europe
Revenues from External Customers and Long-Lived Assets [Line Items]
Percentage of geographic concentration			30.00%		30.00%
Geographic Concentration Risk | Net Book Value | Middle East and Africa
Revenues from External Customers and Long-Lived Assets [Line Items]
Percentage of geographic concentration			12.00%		10.00%
Geographic Concentration Risk | Net Book Value | North America
Revenues from External Customers and Long-Lived Assets [Line Items]
Percentage of geographic concentration			19.00%		19.00%
Geographic Concentration Risk | Net Book Value | Middle East and Africa
Revenues from External Customers and Long-Lived Assets [Line Items]
Percentage of geographic concentration			9.00%		9.00%
Geographic Concentration Risk | Net Book Value | Off Lease
Revenues from External Customers and Long-Lived Assets [Line Items]
Percentage of geographic concentration			0.00%		0.00%

Lease Rental Revenues and Fli46

Lease Rental Revenues and Flight Equipment Held for Lease (Details 4) - Aircraft	6 Months Ended	12 Months Ended
	Jun. 30, 2018	Dec. 31, 2017
Revenues from External Customers and Long-Lived Assets [Line Items]
Number of Offlease Aircraft Marketed for Lease	0
Geographic Concentration Risk | Net Book Value
Revenues from External Customers and Long-Lived Assets [Line Items]
Percentage of geographic concentration	100.00%	100.00%
A321-200 [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Number of Offlease Aircraft Marketed for Lease		1

Lease Rental Revenues and Fli47

Lease Rental Revenues and Flight Equipment Held for Lease (Details Textual) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2018USD ($)Lessee	Jun. 30, 2017Lessee	Jun. 30, 2018USD ($)Lessee	Jun. 30, 2017Lessee	Dec. 31, 2017USD ($)
Customer Group One
Revenue, Major Customer [Line Items]
Entity-Wide Revenue, Major Customer, Number | Lessee	3	3	3	3
Lease Rental Revenue | Customer Concentration Risk | Customer Group One
Revenue, Major Customer [Line Items]
Percentage of geographic concentration	19.00%	19.00%	19.00%	19.00%
Maintenance Payments {Member]
Revenue, Major Customer [Line Items]
Amounts of lease incentive liabilities recorded in the consolidated balance sheets | $	$ 15,709		$ 15,709		$ 11,496

Net Investment in Finance Lea48

Net Investment in Finance Leases Narrative (Details)	Jun. 30, 2018Aircraft
Capital Leased Assets [Line Items]
Capital Leased Assets, Number of Units	30

Net Investment in Finance Lea49

Net Investment in Finance Leases Net Investment in Finance Leases (Details) $ in Thousands	Jun. 30, 2018USD ($)Aircraft	Dec. 31, 2017USD ($)
Capital Leased Assets, Number of Units | Aircraft	30
Capital Leases, Net Investment in Direct Financing Leases [Abstract]
Total lease payments to be received	$ 298,808
Less: Unearned income	(148,283)
Estimated residual values of leased flight equipment (unguaranteed)	376,213
Net investment in finance and sales-type leases	526,738	$ 545,750
Receivable in Remainder of Fiscal Year	35,080
Receivable in Year Two	66,285
Receivable in Year Three	63,840
Receivable in Year Four	53,057
Receivable in Year Five	42,460
Thereafter	38,086
Total	$ 298,808

Unconsolidated Equity Method 50

Unconsolidated Equity Method Investment (Details) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2018USD ($)Aircraft	Jun. 30, 2017USD ($)	Jun. 30, 2018USD ($)Aircraft	Jun. 30, 2017USD ($)	Dec. 31, 2017USD ($)
Unconsolidated equity method investments	$ 80,100		$ 80,100		$ 76,982
Equity Method Investments Before Earnings			355
Earnings of unconsolidated equity method investments, net of tax	$ 1,881	$ 2,266	3,663	$ 4,508
Distributions from unconsolidated equity method investment in excess of earnings			$ (900)
Total number of aircraft owned by joint ventures | Aircraft	12		12
Property Subject to or Available for Operating Lease, Net	$ 6,249,406		$ 6,249,406		6,188,469
Customer Advances and Deposits	719,806		719,806		$ 649,434
Equity Method Investee
Property Subject to or Available for Operating Lease, Net	628,000		628,000
Maintenance Payments {Member] | Equity Method Investee
Customer Advances and Deposits	13,200		13,200
security deposit [Member] | Equity Method Investee
Customer Advances and Deposits	$ 5,100		$ 5,100

Variable Interest Entities (Det

Variable Interest Entities (Details) - Variable Interest Entity, Primary Beneficiary $ in Thousands	6 Months Ended
	Jun. 30, 2018USD ($)AircraftTerm_LoanEntity
Variable Interest Entity [Line Items]
Number of Consolidated Variable Interest Entities | Entity	4
Number of Aircrafts | Aircraft	6
Air Knight VIEs | ECA Term Financings {Member]
Variable Interest Entity [Line Items]
Type of term loans | Term_Loan	6
Debt instrument, term	12 years
Net book value of flight equipment held for lease	$ 403,835
Consolidated debt outstanding	$ 203,882

Secured and Unsecured Debt Fi52

Secured and Unsecured Debt Financings (Details) $ in Thousands	Jun. 30, 2018USD ($)Aircraft	Jun. 27, 2018USD ($)	Mar. 31, 2018USD ($)	Dec. 31, 2017USD ($)
Outstanding amounts of secured and unsecured term debt financings
Borrowings from secured financings	$ 798,522			$ 849,874
Number of Aircraft Financed | Aircraft	29
Borrowings from unsecured financings, net of debt issuance costs	$ 3,392,169			3,463,732
Total secured and unsecured debt financings	4,190,691			4,313,606
Line of Credit | Revolving Credit Facility [Member]
Outstanding amounts of secured and unsecured term debt financings
Borrowings from unsecured financings, net of debt issuance costs				175,000
2013 Revolving Credit Facility | Line of Credit | Revolving Credit Facility [Member]
Debt Instrument [Line Items]
Line of Credit Facility, Current Borrowing Capacity		$ 800,000	$ 675,000
Outstanding amounts of secured and unsecured term debt financings
Line of Credit Facility, Fair Value of Amount Outstanding	$ 100,000
Revolving Credit Facility [Member] | Line of Credit
Outstanding amounts of secured and unsecured term debt financings
Interest rate	4.1851%
ECA Term Financings {Member] | Secured Debt
Outstanding amounts of secured and unsecured term debt financings
Number of Aircraft Financed | Aircraft	6
ECA Term Financings {Member] | Notes Payable, Other Payables
Outstanding amounts of secured and unsecured term debt financings
Borrowings from secured financings	$ 208,448			227,491
Bank Financings | Secured Debt
Outstanding amounts of secured and unsecured term debt financings
Number of Aircraft Financed | Aircraft	23
Bank Financings | Notes Payable to Banks
Outstanding amounts of secured and unsecured term debt financings
Borrowings from secured financings	$ 600,883			634,898
Secured Debt
Outstanding amounts of secured and unsecured term debt financings
Debt Issuance Cost	(10,809)			(12,515)
Senior Notes Due 2018 with 4.625 Interest Rate | Senior Notes
Outstanding amounts of secured and unsecured term debt financings
Borrowings from unsecured financings, net of debt issuance costs	$ 400,000			400,000
Interest rate	4.625%
Senior Notes Due 2019 | Senior Notes
Outstanding amounts of secured and unsecured term debt financings
Borrowings from unsecured financings, net of debt issuance costs	$ 500,000			500,000
Interest rate	6.25%
Senior Notes Due 2020 | Senior Notes
Outstanding amounts of secured and unsecured term debt financings
Borrowings from unsecured financings, net of debt issuance costs	$ 300,000			300,000
Interest rate	7.625%
Senior Notes due 2021 | Senior Notes
Outstanding amounts of secured and unsecured term debt financings
Borrowings from unsecured financings, net of debt issuance costs	$ 500,000			500,000
Interest rate	5.125%
Senior Notes Due 2022 [Member] | Senior Notes
Outstanding amounts of secured and unsecured term debt financings
Borrowings from unsecured financings, net of debt issuance costs	$ 500,000			500,000
Interest rate	5.50%
Senior Notes Due 2023 [Member] | Senior Notes
Outstanding amounts of secured and unsecured term debt financings
Borrowings from unsecured financings, net of debt issuance costs	$ 500,000			500,000
Interest rate	5.00%
Senior Notes Due 2024 [Member] | Senior Notes
Outstanding amounts of secured and unsecured term debt financings
Borrowings from unsecured financings, net of debt issuance costs	$ 500,000			500,000
Interest rate	4.125%
Floating Rate Term Loan [Member] | Floating Rate Term Loan [Member]
Outstanding amounts of secured and unsecured term debt financings
Borrowings from unsecured financings, net of debt issuance costs	$ 120,000			120,000
Interest rate	4.3347%
Unsecured Debt
Outstanding amounts of secured and unsecured term debt financings
Debt Issuance Cost	$ (27,831)			$ (31,268)
Minimum [Member] | ECA Term Financings {Member] | Notes Payable, Other Payables
Outstanding amounts of secured and unsecured term debt financings
Interest rate	3.02%
Minimum [Member] | Bank Financings | Notes Payable to Banks
Outstanding amounts of secured and unsecured term debt financings
Interest rate	2.22%
Maximum | ECA Term Financings {Member] | Notes Payable, Other Payables
Outstanding amounts of secured and unsecured term debt financings
Interest rate	3.96%
Maximum | Bank Financings | Notes Payable to Banks
Outstanding amounts of secured and unsecured term debt financings
Interest rate	4.49%

Secured and Unsecured Debt Fi53

Secured and Unsecured Debt Financings (Details 1) $ in Thousands	3 Months Ended
	Jun. 30, 2018USD ($)Bankfinancings	Jun. 27, 2018	Jun. 26, 2018	Dec. 31, 2017USD ($)
Debt Instrument [Line Items]
Borrowings from unsecured financings, net of debt issuance costs	$ 3,392,169			$ 3,463,732
Notes Payable, Other Payables | ECA Term Financings {Member]
Debt Instrument [Line Items]
Debt, Weighted Average Interest Rate	3.5832%
Notes Payable, Other Payables | Bank Financings
Debt Instrument [Line Items]
Debt, Weighted Average Interest Rate	4.2434%
Senior Notes | Senior Notes Due 2024 [Member]
Debt Instrument [Line Items]
Interest rate	4.125%
Borrowings from unsecured financings, net of debt issuance costs	$ 500,000			500,000
Senior Notes | Senior Notes Due 2020
Debt Instrument [Line Items]
Interest rate	7.625%
Borrowings from unsecured financings, net of debt issuance costs	$ 300,000			300,000
Senior Notes | Senior Notes due 2021
Debt Instrument [Line Items]
Interest rate	5.125%
Borrowings from unsecured financings, net of debt issuance costs	$ 500,000			500,000
Senior Notes | Senior Notes Due 2022 [Member]
Debt Instrument [Line Items]
Interest rate	5.50%
Borrowings from unsecured financings, net of debt issuance costs	$ 500,000			500,000
Line of Credit | Revolving Credit Facility [Member]
Debt Instrument [Line Items]
Borrowings from unsecured financings, net of debt issuance costs				$ 175,000
Line of Credit | 2013 Revolving Credit Facility | Revolving Credit Facility [Member]
Debt Instrument [Line Items]
Line of Credit Facility, Fair Value of Amount Outstanding	$ 100,000
Revolving Credit Facility | Bankfinancings	1
Line of Credit | 2013 Revolving Credit Facility | London Interbank Offered Rate (LIBOR) [Member] | Revolving Credit Facility [Member]
Debt Instrument [Line Items]
Interest rate		1.50%	2.25%
Line of Credit | Revolving Credit Facility [Member]
Debt Instrument [Line Items]
Interest rate	4.1851%
Maximum | Notes Payable, Other Payables | ECA Term Financings {Member]
Debt Instrument [Line Items]
Interest rate	3.96%
Maximum | Notes Payable to Banks | Bank Financings
Debt Instrument [Line Items]
Interest rate	4.49%

Shareholders' Equity and Shar54

Shareholders' Equity and Share Based Payment Shareholders' Equity and Share Based Payment (Details Textual) (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Non-cash share-based payment expense	$ 3,076	$ 6,028	$ 5,454	$ 8,130
Stock Repurchase Program, Remaining Authorized Repurchase Amount	83,396		$ 83,396
Total Performance-Based Shares Granted [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Granted			306,359
AROEPerformanceBasedShares [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Granted			291,876
Performance Shares [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Non-cash share-based payment expense			$ 2,641
Employee service share-based compensation, nonvested awards, compensation cost not yet recognized	9,276		$ 9,276
Employee service share-based compensation, nonvested awards, compensation cost not yet recognized, period for recognition			1 year 11 months 13 days
Restricted Stock Units (RSUs) [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Non-cash share-based payment expense			$ 2,813
Employee service share-based compensation, nonvested awards, compensation cost not yet recognized	$ 7,249		$ 7,249
Common Stock [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock Repurchased During Period, Shares			638,636
Stock Repurchased During Period, Value			$ 12,492

Dividends (Details)

Dividends (Details) - USD ($) $ / shares in Units, $ in Thousands	May 01, 2018	Feb. 09, 2018	Oct. 31, 2017	Aug. 04, 2017	May 02, 2017	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Dividends [Abstract]
Dividend per Common Share	$ 0.28	$ 0.28	$ 0.28	$ 0.26	$ 0.26	$ 0.28	$ 0.26	$ 0.56	$ 0.52
Aggregate Dividend Amount	$ 21,908	$ 22,085	$ 22,039	$ 20,464	$ 20,482

Earnings Per Share (Details)

Earnings Per Share (Details) - shares	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Weighted-average shares:
Common shares outstanding	77,910,513	78,176,705	78,137,290	78,176,705
Restricted common shares	498,433	634,217	464,983	569,370
Total Weighted Average Shares	78,408,946	78,810,922	78,602,273	78,746,075
Percentage of weighted-average shares:
Common shares outstanding	99.36%	99.20%	99.41%	99.28%
Restricted common shares	0.64%	0.80%	0.59%	0.72%
Total	100.00%	100.00%	100.00%	100.00%

Earnings Per Share (Details 1)

Earnings Per Share (Details 1) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Earnings Per Share [Abstract]
Participating Securities, Distributed and Undistributed Earnings (Loss), Basic	$ 319	$ 0	$ 637	$ 255
Participating Securities, Distributed and Undistributed Earnings of Net Income, Percent	0.64%	0.80%	0.59%	0.72%
Earnings (loss) per share – Basic:
Net income (loss)	$ 50,203	$ (7,116)	$ 107,750	$ 35,323
Earnings (loss) available to common shareholders – Basic	$ 49,884	$ (7,116)	$ 107,113	$ 35,068
Weighted-average common shares outstanding – Basic	77,910,513	78,176,705	78,137,290	78,176,705
Earnings (loss) per common share – Basic	$ 0.64	$ (0.09)	$ 1.37	$ 0.45
Earnings (loss) per share – Diluted:
Net income (loss)	$ 50,203	$ (7,116)	$ 107,750	$ 35,323
Earnings (loss) available to common shareholders – Diluted	$ 49,884	$ (7,116)	$ 107,113	$ 35,068
Weighted-average common shares outstanding – Basic	77,910,513	78,176,705	78,137,290	78,176,705
Effect of dilutive shares(2)	337,716	0	282,868	227,350
Weighted-average common shares outstanding – Diluted	78,248,229	78,176,705	78,420,158	78,404,055
Earnings (loss) per common share – Diluted	$ 0.64	$ (0.09)	$ 1.37	$ 0.45
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount		170,116

Income Taxes (Details)

Income Taxes (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Income Tax Disclosure [Abstract]
Asset Impairment Charges	$ 0	$ 79,930	$ 0	$ 80,430
Effective Income Tax Rate, Continuing Operations	6.10%	(5.60%)	2.20%	7.10%
Sources of income from continuing operations before income taxes
U.S. operations	$ 788	$ 902	$ 1,471	$ 1,498
Non-U.S. operations	50,666	(9,789)	104,904	31,658
Income (loss) from continuing operations before income taxes and earnings of unconsolidated equity method investments	$ 51,454	$ (8,887)	$ 106,375	$ 33,156

Income Taxes (Details 1)

Income Taxes (Details 1) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Analysis of effective income tax rate for continuing operations
Notional U.S. federal income tax expense at the statutory rate	$ 10,806	$ (3,110)	$ 22,339	$ 11,605
U.S. state and local income tax, net	55	48	103	89
Non-deductible expenses in the U.S.	29	55	(164)	(194)
Other	0	(9)	0	(17)
Income tax provision	3,132	495	2,288	2,341
Bermuda
Analysis of effective income tax rate for continuing operations
Non-U.S. operations:			(14,395)	1,628
Ireland
Analysis of effective income tax rate for continuing operations
Non-U.S. operations:			(1,128)	(254)
Other
Analysis of effective income tax rate for continuing operations
Non-U.S. operations:			(1,643)	(2,927)
Singapore | Foreign Tax Authority
Analysis of effective income tax rate for continuing operations
Non-U.S. operations:	0	(4,662)	$ (2,824)	$ (7,589)
Other | Foreign Tax Authority
Analysis of effective income tax rate for continuing operations
Non-U.S. operations:	(835)	(1,487)
Ireland | Foreign Tax Authority
Analysis of effective income tax rate for continuing operations
Non-U.S. operations:	(811)	(796)
Bermuda | Foreign Tax Authority
Analysis of effective income tax rate for continuing operations
Non-U.S. operations:	$ (6,112)	$ 10,456

Income Taxes Income Taxes (Text

Income Taxes Income Taxes (Textual) (Details) - USD ($) $ in Thousands	3 Months Ended			6 Months Ended
	Jun. 30, 2018	Mar. 31, 2018	Jun. 30, 2017	Jun. 30, 2018	Dec. 31, 2017	Jun. 30, 2017
Effective Income Tax Rate Reconciliation, Change in Enacted Tax Rate, Percent				4.80%
Effective Income Tax Rate, Continuing Operations	6.10%		(5.60%)	2.20%		7.10%
Singapore
Deferred Income Tax Expense (Benefit)		$ 2,779
Singapore Tax Holiday Income Tax Rate					8.00%	10.00%

Interest, Net (Details)

Interest, Net (Details) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2018USD ($)	Jun. 30, 2017USD ($)Aircraft	Jun. 30, 2018USD ($)	Jun. 30, 2017USD ($)
Interest Income (Expense), Net [Abstract]
Loss on Contract Termination		$ 988
Number of Aircraft with Loan Termination Fees | Aircraft		3
Write off of Deferred Debt Issuance Cost		$ 986
Number of Aircraft with Deferred Financing Costs Written Off | Aircraft		3
Interest on borrowings and other liabilities(1)	$ 53,979	$ 56,859	$ 107,957	$ 115,698
Cash flow hedges reclassified into earnings	294	575	595	1,156
Amortization of deferred financing costs	3,510	4,970	7,042	9,125
Interest expense	57,783	62,404	115,594	125,979
Less: Interest income	(287)	(614)	(990)	(1,028)
Interest Costs Capitalized	(98)	(118)	(98)	(211)
Interest, net	$ 57,398	$ 61,672	$ 114,506	$ 124,740

Commitments and Contingencies (

Commitments and Contingencies (Details) $ in Thousands	6 Months Ended
	Jun. 30, 2018USD ($)Aircraft	Aug. 03, 2018USD ($)Aircraft
Types of Commercial Aircraft [Line Items]
Long-term Purchase Commitment, Minimum Quantity Required | Aircraft	25
Purchase Obligation, Future Minimum Payments, Remainder of Fiscal Year	$ 830,882
Unrecorded Unconditional Purchase Obligation, Minimum Quantity Required | Aircraft	48
Purchase Obligation, Due in Second Year	$ 382,620
Purchase Obligation, Due in Third Year	390,416
Purchase Obligation, Due in Fourth Year	272,990
Purchase Obligation, Due in Fifth Year	0
Purchase Obligation, Due after Fifth Year	0
Purchase Obligation	1,876,908
Subsequent Event [Member]
Types of Commercial Aircraft [Line Items]
Unrecorded Unconditional Purchase Obligation, Minimum Quantity Required | Aircraft		46
Unrecorded Unconditional Purchase Obligation		$ 1,838,708
Pre-Delivery Payments [Member]
Types of Commercial Aircraft [Line Items]
Purchase Obligation	$ 125,866

Other Assets (Details)

Other Assets (Details) - USD ($) $ in Thousands	Jun. 30, 2018	Dec. 31, 2017
Principal components of other assets
Deferred income tax asset	$ 491	$ 497
Lease incentives and lease premiums, net of amortization of $40,460 and $41,246, respectively	84,032	74,515
Disposal Group, Including Discontinued Operation, Property, Plant and Equipment	2,238	707
Deposit Assets	29,569	23,704
Interest Rate Derivative Assets, at Fair Value	7,329	3,254
Notes, Loans and Financing Receivable, Net, Noncurrent	6,678	10,000
Other assets	43,970	28,533
Total other assets	174,307	141,210
Amortization of lease incentives and lease premiums	$ 40,460	$ 41,246

Accounts Payable, Accrued Exp64

Accounts Payable, Accrued Expenses and Other Liabilities (Details) - USD ($) $ in Thousands	Jun. 30, 2018	Dec. 31, 2017
Payables and Accruals [Abstract]
Accounts payable and accrued expenses	$ 42,886	$ 50,948
Deferred income tax liability	39,597	36,547
Accrued interest payable	37,927	38,129
Lease discounts, net of amortization of $40,106 and $36,111, respectively	10,954	14,597
Total accounts payable, accrued expenses and other liabilities	131,364	140,221
Deferred Revenue, Leases, Accumulated Amortization	$ 40,106	$ 36,111