Overseas Shipholding Group, Inc. - Ordinary Shares (OSG) 10-K 13 Mar 14 2013 FY Annual report Financial data

Document_And_Entity_Informatio

Document And Entity Information (USD $)	12 Months Ended
	Dec. 31, 2013	Mar. 03, 2014	Jun. 28, 2013
Document Information [Line Items]	'	'	'
Entity Registrant Name	'OVERSEAS SHIPHOLDING GROUP INC	'	'
Entity Central Index Key	'0000075208	'	'
Current Fiscal Year End Date	'--12-31	'	'
Entity Filer Category	'Accelerated Filer	'	'
Trading Symbol	'OSGIQ	'	'
Entity Common Stock, Shares Outstanding	'	30,677,595	'
Document Type	'10-K	'	'
Amendment Flag	'false	'	'
Document Period End Date	31-Dec-13	'	'
Document Fiscal Period Focus	'FY	'	'
Document Fiscal Year Focus	'2013	'	'
Entity Well-known Seasoned Issuer	'No	'	'
Entity Voluntary Filers	'No	'	'
Entity Current Reporting Status	'Yes	'	'
Entity Public Float	'	'	$103,129,000

CONSOLIDATED_BALANCE_SHEETS

CONSOLIDATED BALANCE SHEETS (USD $)	Dec. 31, 2013	Dec. 31, 2012
In Thousands, unless otherwise specified
Current Assets:	'	'
Cash and cash equivalents	$601,927	$507,342
Voyage receivables, including unbilled of $113,336 and $131,333	147,964	179,259
Income taxes recoverable	3,952	0
Other receivables	16,838	28,900
Inventories	16,884	15,532
Prepaid expenses and other current assets	24,284	40,394
Deferred income taxes	5,464	0
Total Current Assets	817,313	771,427
Vessels and other property, less accumulated depreciation	2,359,352	2,837,288
Deferred drydock expenditures, net	57,248	74,418
Total Vessels, Deferred Drydock and Other Property	2,416,600	2,911,706
Investments in affiliated companies	323,327	252,398
Intangible assets, less accumulated amortization	60,167	71,975
Goodwill	0	9,589
Other assets	27,087	26,440
Total Assets	3,644,494	4,043,535
Current Liabilities:	'	'
Accounts payable, accrued expenses and other current liabilities	121,582	99,273
Deferred income taxes	0	25,900
Income taxes payable, including reserve for uncertain tax positions of $234,623 and $326,121	256,258	329,799
Total Current Liabilities	377,840	454,972
Reserve for uncertain tax positions	26,585	17,067
Deferred gain on sale and leaseback of vessels	0	3,839
Deferred income taxes	369,954	343,162
Other liabilities	42,189	37,712
Liabilities subject to compromise	2,888,173	2,652,537
Total Liabilities	3,704,741	3,509,289
Commitments and contingencies	'	'
(Deficit)/Equity:	'	'
Common stock ($1 par value; 120,000,000 shares authorized; 44,290,759 shares issued)	44,291	44,291
Paid-in additional capital	413,753	414,411
Retained earnings	386,250	1,024,480
Stockholders Equity before Treasury Stock	844,294	1,483,182
Cost of treasury stock (13,575,339 and 13,396,320 shares)	835,197	835,155
Stockholders Equity Subtotal	9,097	648,027
Accumulated other comprehensive loss	-69,344	-113,781
Total (Deficit)/Equity	-60,247	534,246
Total Liabilities and (Deficit)/Equity	$3,644,494	$4,043,535

CONSOLIDATED_BALANCE_SHEETS_Pa

CONSOLIDATED BALANCE SHEETS (Parenthetical) (USD $)	Dec. 31, 2013	Dec. 31, 2012
In Thousands, except Share data, unless otherwise specified
Unbilled Contracts Receivable (in dollars)	$113,336	$131,333
Income taxes payable ,reserve for uncertain tax positions (in dollars)	$234,623	$326,121
Common Stock, par value (in dollars per share)	$1	$1
Common Stock, Shares Authorized	120,000,000	120,000,000
Common Stock, Shares, Issued	44,290,759	44,290,759
Treasury Stock, Shares	13,575,339	13,396,320

CONDENSED_CONSOLIDATED_STATEME

CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS (USD $)	12 Months Ended
In Thousands, except Share data, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Shipping Revenues:	'	'	'
Pool revenues, including $90,668 in 2013, $78,523 in 2012 and $83,955 in 2011 received from companies accounted for by the equity method	$177,068	$241,314	$245,028
Time and bareboat charter revenues	370,689	299,267	267,159
Voyage charter revenues	468,239	583,253	537,344
Sunoco termination fee	0	13,300	0
Shipping revenues	1,015,996	1,137,134	1,049,531
Operating Expenses:	'	'	'
Voyage expenses	252,668	296,288	259,330
Vessel expenses	265,146	285,023	287,610
Charter hire expenses	206,873	370,405	383,940
Depreciation and amortization	176,276	201,284	179,721
General and administrative	97,663	88,845	83,178
Severance and relocation costs	3,097	3,163	0
Goodwill and other intangibles impairment charge	16,214	0	0
(Gain)/loss on disposal of vessels, including impairments	365,257	271,359	-2,060
Total Operating Expenses	1,383,194	1,516,367	1,191,719
Loss from Vessel Operations	-367,198	-379,233	-142,188
Equity in Income of Affiliated Companies	40,894	33,486	20,555
Operating Loss	-326,304	-345,747	-121,633
Other Income/(Expense)	849	-1,314	2,154
Loss before Interest Expense, Reorganization Items and Taxes	-325,455	-347,061	-119,479
Interest Expense	-350	-93,421	-79,898
Loss before Reorganization Items and Income Taxes	-325,805	-440,482	-199,377
Reorganization Items, net	-327,170	-41,113	0
Loss before Income Taxes	-652,975	-481,595	-199,377
Income Tax (Provision)/Benefit	14,745	1,481	-1,986
Net Loss	($638,230)	($480,114)	($201,363)
Weighted Average Number of Common Shares Outstanding:	'	'	'
Basic (in shares)	30,482,818	30,339,258	30,228,441
Diluted (in shares)	30,482,818	30,339,258	30,228,441
Per Share Amounts:	'	'	'
Basic net loss (in dollars per share)	($20.94)	($15.82)	($6.67)
Diluted net loss (in dollars per share)	($20.94)	($15.82)	($6.67)
Cash dividends declared (in dollars per share)	$0	$0	$1.53

CONSOLIDATED_STATEMENTS_OF_COM

CONSOLIDATED STATEMENTS OF COMPREHENSIVE LOSS (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Net Loss	($638,230)	($480,114)	($201,363)
Other Comprehensive (Loss)/Income, net of tax:	'	'	'
Net change in unrealized holding losses on available-for-sale securities	-49	15	-231
Net change in unrealized losses on cash flow hedges	39,674	5,617	-34,668
Defined benefit pension and other postretirement benefit plans:	'	'	'
Net change in unrecognized transition obligation	5	6	-29
Net change in unrecognized prior service costs	-237	1,731	-968
Net change in unrecognized actuarial losses	5,044	-1,843	-6,523
Other Comprehensive Income/(Loss)	44,437	5,526	-42,419
Comprehensive Loss	($593,793)	($474,588)	($243,782)

CONSOLIDATED_STATEMENTS_OF_CAS

CONSOLIDATED STATEMENTS OF CASH FLOWS (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Cash Flows from Operating Activities:	'	'	'
Net Loss	($638,230)	($480,114)	($201,363)
Items included in net loss not affecting cash flows:	'	'	'
Depreciation and amortization	176,276	201,284	179,721
Loss on write-down of vessels and other fixed assets	366,439	279,382	0
Goodwill and other intangibles write-down	16,214	0	0
Amortization of deferred gain on sale and leasebacks	42	-5,905	-29,825
Amortization of debt discount and other deferred financing costs	0	3,198	3,576
Deferred financing costs write-off	0	12,540	0
Compensation relating to restricted stock and stock option grants	-131	7,910	10,069
Dedesignation of interest rate swap agreements	0	1,866	0
Deferred income tax benefit	-7,398	-29,751	-29,636
Unrealized gain/(loss) on forward freight agreements and bunker swaps	0	-156	427
Undistributed earnings of affiliated companies	-35,826	-22,771	-7,628
Deferred payment obligations on charters-in	5,446	5,600	5,399
Reorganization items, non-cash	261,221	34,676	0
(Gain)/loss on sublease contracts	-896	895	0
Other - net	2,243	7,133	4,060
Items included in net loss related to investing and financing activities:	'	'	'
Loss/(gain) on sale or write-down of securities and investments - net	198	3,166	-313
Gain on disposal of vessels - net	-1,182	-8,023	-2,060
Loss on repurchase of bonds	0	0	375
Payments for drydocking	-22,024	-45,990	-47,360
Changes in operating assets and liabilities	'	'	'
Decrease/(increase) in receivables	33,453	-30,324	-7,468
Security deposits with vendors and lenders	0	-10,344	0
Decrease in Sunoco deferred revenue	0	-27,104	0
Net change in prepaid items and accounts payable, accrued expenses and other current and long-term liabilities	-13,949	69,933	60,965
Net cash provided by/(used in) operating activities	141,896	-32,899	-61,061
Cash Flows from Investing Activities:	'	'	'
Long-term investments	0	0	-13,708
Disposal of short-term investments	0	0	20,047
Proceeds from sale of marketable securities and investments	459	13,000	3,491
Expenditures for vessels	-36,377	-52,604	-187,510
Proceeds from disposal of vessels	485	12,886	19,628
Expenditures for vessels and other property	-2,181	-2,862	-6,736
Investments in and advances to affiliated companies	0	0	-1,650
Distributions from affiliated companies, net	2,097	6,608	8,733
Other - net	979	563	3,532
Net cash used in investing activities	-34,538	-22,409	-154,173
Cash Flows from Financing Activities:	'	'	'
Purchases of treasury stock	-42	-307	-920
Issuance of debt, net of issuance costs and deferred financing costs	0	572,000	168,393
Payments on debt, including adequate protection payments	-12,731	-63,990	-104,774
Cash dividends paid	0	0	-46,875
Issuance of common stock upon exercise of stock options	0	70	638
Net cash (used in)/provided by financing activities	-12,773	507,773	16,462
Net increase/(decrease) in cash and cash equivalents	94,585	452,465	-198,772
Cash and cash equivalents at beginning of year	507,342	54,877	253,649
Cash and cash equivalents at end of year	$601,927	$507,342	$54,877

CONSOLIDATED_STATEMENTS_OF_CHA

CONSOLIDATED STATEMENTS OF CHANGES IN EQUITY/(DEFICIT) (USD $)	Total	Common Stock [Member]	Paid-in Additional Capital [Member]	Retained Earnings [Member]	Treasury Stock [Member]	Accumulated Other Comprehensive Loss [Member]
In Thousands, except Share data
Balance at Dec. 31, 2010	$1,283,153	$44,291	$403,601	$1,752,832	($840,683)	($76,888)
Balance (in shares) at Dec. 31, 2010	'	'	'	'	13,880,753	'
Net Loss	-201,363	'	'	-201,363	'	0
Other Comprehensive Income (Loss), net of taxes	-42,419	'	'	'	'	-42,419
Cash Dividends Declared	-46,875	'	'	-46,875	'	'
Issuance of Restricted Stock Awards	9	'	-990	'	999	'
Issuance of Restricted Stock Awards (in shares)	'	'	'	'	-62,501	'
Compensation Related to Options Granted	2,821	'	2,821	'	'	'
Amortization of Restricted Stock Awards	7,248	'	7,248	'	'	'
Options Exercised and Employee Stock Purchase Plan	638	'	336	'	302	'
Options Exercised and Employee Stock Purchase Plan (in shares)	'	'	'	'	-24,139	'
Purchases of Treasury Stock	-920	'	'	'	-920	'
Purchases of Treasury Stock (in shares)	'	'	'	'	32,769	'
Balance at Dec. 31, 2011	1,002,292	44,291	413,016	1,504,594	-840,302	-119,307
Balance (in shares) at Dec. 31, 2011	'	'	'	'	13,826,882	'
Net Loss	-480,114	'	'	-480,114	'	'
Other Comprehensive Income (Loss), net of taxes	5,526	'	'	'	'	5,526
Issuance of Restricted Stock Awards	232	'	-5,084	'	5,316	'
Issuance of Restricted Stock Awards (in shares)	'	'	'	'	-458,029	'
Compensation Related to Options Granted	1,795	'	1,795	'	'	'
Amortization of Restricted Stock Awards	6,115	'	6,115	'	'	'
Options Exercised and Employee Stock Purchase Plan	70	'	-68	'	138	'
Options Exercised and Employee Stock Purchase Plan (in shares)	'	'	'	'	-11,041	'
Tax Impact of Vesting of Stock Awards	-1,363	'	-1,363	'	'	'
Purchases of Treasury Stock	-307	'	'	'	-307	'
Purchases of Treasury Stock (in shares)	'	'	'	'	38,508	'
Balance at Dec. 31, 2012	534,246	44,291	414,411	1,024,480	-835,155	-113,781
Balance (in shares) at Dec. 31, 2012	13,396,320	'	'	'	13,396,320	'
Net Loss	-638,230	'	'	-638,230	'	'
Other Comprehensive Income (Loss), net of taxes	44,437	'	'	'	'	44,437
Forfeitures of Restricted Stock Awards	0	'	'	'	'	'
Forfeitures of Restricted Stock Awards (in shares)	'	'	'	'	138,649	'
Compensation Related to Options Granted	-192	'	-192	'	'	'
Amortization of Restricted Stock Awards	61	'	61	'	'	'
Tax Impact of Vesting of Stock Awards	-527	'	-527	'	'	'
Purchases of Treasury Stock	-42	'	'	'	-42	'
Purchases of Treasury Stock (in shares)	'	'	'	'	40,370	'
Balance at Dec. 31, 2013	($60,247)	$44,291	$413,753	$386,250	($835,197)	($69,344)
Balance (in shares) at Dec. 31, 2013	13,575,339	'	'	'	13,575,339	'

BASIS_OF_PRESENTATION_AND_DESC

BASIS OF PRESENTATION AND DESCRIPTION OF BUSINESS	12 Months Ended
	Dec. 31, 2013
Organization, Consolidation and Presentation of Financial Statements [Abstract]	'
Business Description and Basis of Presentation [Text Block]	'
	NOTE 1 — BASIS OF PRESENTATION AND DESCRIPTION OF BUSINESS
	The consolidated financial statements include the accounts of Overseas Shipholding Group, Inc., a Delaware corporation, and its wholly owned subsidiaries (the “Company” or “OSG”). All significant intercompany balances and transactions have been eliminated in consolidation. Investments in 50% or less owned affiliated companies, in which the Company exercises significant influence, are accounted for by the equity method. Dollar amounts except per share amounts are in thousands.
	The Company owns and operates a fleet of oceangoing vessels engaged in the transportation of liquid cargoes in the international market and the U.S. Flag trades.

BANKRUPTCY_FILING_AND_GOING_CO

BANKRUPTCY FILING AND GOING CONCERN	12 Months Ended
	Dec. 31, 2013
Bankruptcy Filing And Going Concern [Abstract]	'
Bankruptcy Filing And Going Concern [Text Block]	'
	NOTE 2 — BANKRUPTCY FILING AND GOING CONCERN
	Chapter 11 Filing
	On November 14, 2012 (the “Petition Date”), the Company and 180 of its subsidiaries (collectively, the “Debtors”) filed voluntary petitions for relief under Chapter 11 of Title 11 of the United States Code (the “Bankruptcy Code”) in the United States Bankruptcy Court for the District of Delaware (the “Bankruptcy Court”). These cases are being jointly administered under the caption In re Overseas Shipholding Group, Inc. et al., Case No. 12 – 20000 (PJW) (the “Chapter 11 Cases”). Certain subsidiaries and affiliates of the Company (collectively, the “Non-Filing Entities”) were not part of the Chapter 11 Cases. The Debtors will continue to operate their businesses as “debtors-in-possession” in the ordinary course under the jurisdiction of the Bankruptcy Court and in accordance with the applicable provisions of the Bankruptcy Code and orders of the Bankruptcy Court. The Non-Filing Entities will continue to operate their businesses in the ordinary course of business.
	Reorganization Plan
	In order for the Debtors to emerge successfully from Chapter 11, the Debtors must obtain the required votes of creditors accepting a plan of reorganization as well as the Bankruptcy Court’s confirmation of such plan, which will enable the Debtors to transition from Chapter 11 into ordinary course operations outside of bankruptcy. In connection with a reorganization plan, the Debtors also may require a new credit facility, or “exit financing.” The Debtors’ ability to obtain such approval and financing will depend on, among other things, the timing and outcome of various ongoing matters related to the Chapter 11 Cases. A reorganization plan determines the rights and satisfaction of claims of various creditors and security holders, and is subject to the ultimate outcome of negotiations and Bankruptcy Court decisions ongoing through the date on which the reorganization plan is confirmed.
	On December 19, 2013, the Bankruptcy Court entered an order to extend the period of time that the Debtors have the exclusive right to file a plan of reorganization and disclosure statement with the Bankruptcy Court through and including February 28, 2014. On February 21, 2014, the Debtors filed a motion requesting that the Bankruptcy Court extend the exclusive period to file a plan of reorganization through and including March 31, 2014 and the exclusive period to solicit acceptances thereof through and including June 30, 2014. That motion was granted without a hearing by order dated March 6, 2014. The reorganization plan is subject to revision in response to creditor claims and objections and the requirements of the Bankruptcy Code or the Bankruptcy Court. There can be no assurance that the Debtors will be able to secure requisite accepting votes for any proposed reorganization plan or confirmation of such plan by the Bankruptcy Court.
	Going Concern and Financial Reporting
	The commencement of the Chapter 11 Cases and weak industry conditions have negatively impacted the Company’s results of operations and cash flows and may continue to do so in the future. These factors raise substantial doubt about the Company’s ability to continue as a going concern. The accompanying consolidated financial statements have been prepared assuming that the Company will continue as a going concern, which contemplates the realization of assets and the liquidation of liabilities in the normal course of business.
	The Company’s ability to continue as a going concern is contingent upon, among other things, its ability to (i) develop a plan of reorganization and obtain required creditor acceptance and confirmation under the Bankruptcy Code, (ii) successfully implement such plan of reorganization, (iii) reduce debt and other liabilities through the bankruptcy process, (iv) return to profitability, (v) generate sufficient cash flow from operations, and (vi) obtain financing sources sufficient to meet the Company’s future obligations. As a result of the Chapter 11 Cases, the realization of assets and the satisfaction of liabilities are subject to uncertainty. While operating as debtors-in-possession pursuant to the Bankruptcy Code, the Company may sell or otherwise dispose of or liquidate assets or settle liabilities, subject to the approval of the Bankruptcy Court or as otherwise permitted in the ordinary course of business, for amounts other than those reflected in the consolidated financial statements. In particular, such financial statements do not purport to show (i) as to assets, the realization value on a liquidation basis or availability to satisfy liabilities, (ii) as to liabilities arising prior to the Petition Date, the amounts that may be allowed for claims or contingencies, or the status and priority thereof, (iii) as to shareholders’ equity accounts, the effect of any changes that may be made in the Company’s capitalization, or (iv) as to operations, the effects of any changes that may be made in the underlying business. A confirmed plan of reorganization (the “Plan”) would likely cause material changes to the amounts currently disclosed in the consolidated financial statements. Further, the Plan could materially change the amounts and classifications reported in the consolidated historical financial statements, which do not give effect to any adjustments to the carrying value of assets or amounts of liabilities that might be necessary as a consequence of confirmation of a plan of reorganization. The accompanying consolidated financial statements do not include any direct adjustments related to the recoverability and classification of assets or the amounts and classification of liabilities or any other adjustments that might be necessary should the Company be unable to continue as a going concern or as a consequence of the Chapter 11 Cases.
	The Company was required to apply Financial Accounting Standards Board (“FASB”) Accounting Standards Codification (“ASC”) 852, Reorganizations, effective on November 14, 2012, which is applicable to companies under bankruptcy protection, and requires amendments to the presentation of key financial statement line items. It requires that the financial statements for periods subsequent to the filing of the Chapter 11 Cases distinguish transactions and events that are directly associated with the reorganization from the ongoing operations of the business. Revenues, expenses, realized gains and losses, and provisions for losses that can be directly associated with the reorganization and restructuring of the business must be reported separately as reorganization items in the consolidated statements of operations beginning in the year ended December 31, 2012. The balance sheet must distinguish pre-petition liabilities subject to compromise from both those pre-petition liabilities that are not subject to compromise and from post-petition liabilities. As discussed in Note 11, “Debt,” the revolving loan facilities and the Senior Notes are unsecured and the Secured Loan Facilities have priority over the unsecured creditors of the Company. Based upon the uncertainty surrounding the ultimate treatment of the Unsecured Revolving Credit Facility, the Unsecured Senior Notes and the Secured Loan Facilities, which were under collateralized as of the Petition Date, the instruments are classified as Liabilities Subject to Compromise in the Company’s consolidated balance sheet. The Company will evaluate creditors’ claims relative to priority over other unsecured creditors. Liabilities that may be affected by a plan of reorganization must be reported at the amounts expected to be allowed by the Bankruptcy Court, even if they may be settled for lesser amounts as a result of the plan of reorganization or negotiations with creditors. In addition, cash used by reorganization items are disclosed separately in the consolidated statements of cash flow.
	As further described in Note 14, “Taxes,” the Internal Revenue Service (“IRS”) has filed amended proofs of claim against the Company in its Chapter 11 proceedings in the aggregate liquidated amount of $255,760.

LIABILITIES_SUBJECT_TO_COMPROM

LIABILITIES SUBJECT TO COMPROMISE AND REORGANIZATION ITEMS	12 Months Ended
	Dec. 31, 2013
Liabilities Subject To Compromise and Reorganization Items [Abstract]	'
Liabilities Subject To Compromise Consist [Text Block]	'
	NOTE 3 — LIABILITIES SUBJECT TO COMPROMISE AND REORGANIZATION ITEMS
	Liabilities Subject to Compromise:
	As a result of the filing of the Chapter 11 Cases on November 14, 2012, the payment of pre-petition indebtedness is generally subject to compromise pursuant to a plan of reorganization. Generally, actions to enforce or otherwise effect payment of pre-bankruptcy filing liabilities are stayed. Although payment of pre-petition claims generally is not permitted, the Bankruptcy Court granted the Debtors authority to pay certain pre-petition claims in designated categories and subject to certain terms and conditions. This relief generally was designed to preserve the value of the Debtors’ businesses and assets. Among other things, the Bankruptcy Court authorized the Debtors to pay certain pre-petition claims relating to employee wages and benefits, taxes and critical and foreign vendors.
	The Debtors have been paying and intend to continue to pay undisputed post-petition liabilities in the ordinary course of business. In addition, the Debtors have rejected certain pre-petition executory contracts and unexpired leases with respect to their operations with the approval of the Bankruptcy Court. Any damages resulting from the rejection of executory contracts and unexpired leases are treated as general unsecured claims and have been classified as Liabilities Subject to Compromise on the Company’s consolidated balance sheets as of December 31, 2013 and 2012. The Debtors have notified all known claimants subject to the bar date of their need to file a proof of claim with the Bankruptcy Court. A bar date is the date by which certain claims against the Debtors must be filed if the claimants disagree with the amounts, treatment or classification reflected in the Debtors’ schedule of assets and liabilities or that are not so scheduled and wish to receive any distribution in the bankruptcy filing. A bar date of May 31, 2013 was set by the Bankruptcy Court.
	Pre-petition liabilities that are subject to compromise are required to be reported at the amounts expected to be allowed, even if they may be settled for lesser amounts. The amounts currently classified as Liabilities Subject to Compromise may be subject to future adjustments depending on Bankruptcy Court actions, further developments with respect to disputed claims, determinations of the secured status of certain claims, the values of any collateral securing such claims, or other events. The accrued liabilities relating to rejected executory contracts, a component of liabilities subject to compromise reflects estimates based upon negotiations with creditors that have resulted in amended claims and/or stipulations that have received Bankruptcy Court approval.  The Company cannot provide assurance relating to the value of the claims that will ultimately be allowed by the Bankruptcy Court. Any changes in classification resulting from the Company’s evaluation, investigation and reconciliation of the filed claims will be reflected in subsequent financial statements.
	Liabilities Subject to Compromise consist of the following:
	As of December 31,	2013		2012
	Prepetition accounts payable and other accrued liabilities	$	4,565	$	2,717
	Secured long-term debt and accrued interest		569,408		577,957
	Unsecured senior notes		500,780		500,780
	Unsecured revolving credit facility		1,489,000		1,488,579
	Accrued interest and fees on unsecured revolving credit facility and senior notes		10,878		10,878
	Derivative liabilities		3,566		3,566
	Accrued liabilities relating to rejected executory contracts		282,599		30,539
	Pension and other postretirement benefit plan liabilities		27,377		37,521
	Total Liabilities Subject to Compromise	$	2,888,173	$	2,652,537
	See Note 18, “Pension and Other Postretirement Benefit Plans,” for information relating to changes in the amounts included in Liabilities Subject to Compromise.
	The following table summarizes activity related to the reserve for rejected executory contracts component of liabilities subject to compromise for the years ended December 31, 2013 and 2012.
		Reserve for estimated claims on rejected
		executory contracts
		2013		2012
	Balance at January 1,	$	30,539	$	-
	Original provision		180,505		30,187
	Change in estimate - prior year's provision		8,068		-
	Change in estimate - current year's provision		60,266		-
	Other liabilities relating to rejected executory contracts		3,221		352
	Balance at December 31,	$	282,599	$	30,539
	Reorganization Items, net
	Reorganization items, net represent amounts incurred subsequent to the bankruptcy filing as a direct result of the filing of the Chapter 11 Cases and are comprised of the following:
	For the year ended December 31,	2013		2012
	Trustee fees	$	3,006	$	672
	Professional fees		62,823		7,889
	Provision for estimated claims on rejected executory contracts		248,839		30,187
	Expenses incurred on rejected executory contracts		7,683		2,365
	Write-off of deferred financing costs		4,603		-
	Other claims adjustments		216		-
		$	327,170	$	41,113
	Mr. John J. Ray III was appointed by the board of directors of the Company as Chief Reorganization Officer of the Company effective as of November 14, 2012. In connection with the appointment of Mr. Ray, the Company entered into an engagement letter agreement dated November 1, 2012 with Greylock Partners,  LLC for Greylock Partners to provide the Company with financial and reorganization consulting services. Mr. Ray is a Senior Managing Director and founder of Greylock Partners. The Company incurred fees due to Greylock Partners of $14,950 and $2,632 for services rendered to the Company for the years ended December 31, 2013 and 2012, respectively. Such related party expenses are included in professional fees in the table above.
	Cash paid for reorganization items was $65,949 and $6,437 for the years ended December 31, 2013 and 2012.

SUMMARY_OF_SIGNIFICANT_ACCOUNT

SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES	12 Months Ended
	Dec. 31, 2013
Accounting Policies [Abstract]	'
Significant Accounting Policies [Text Block]	'
	NOTE 4 — SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES:
	1	Cash and cash equivalents—Interest-bearing deposits that are highly liquid investments and have a maturity of three months or less when purchased are included in cash and cash equivalents. Approximately $20,500 and $3,100 of cash and cash equivalents in the consolidated balance sheets as of December 31, 2013 and 2012, respectively, is restricted for the general operations of 15 vessels pledged as collateral under secured term loans. See Note 11, “Debt,” for a further discussion of Secured Term Loans.
	2	Marketable securities—The Company’s investments in marketable securities are classified as trading and available-for-sale and are carried at fair value. The Company utilizes the first-in, first-out method to determine the cost of marketable securities sold or the amount reclassified out of accumulated other comprehensive loss into earnings. Net unrealized gains or losses on available-for-sale securities are reported as a component of accumulated other comprehensive loss within equity. If a material decline in the fair value below the Company’s cost basis is determined to be other than temporary on available-for-sale securities, a noncash impairment loss is recorded in the statement of operations in the period in which that determination is made. As a matter of policy, the Company evaluates all material declines in fair value for impairment whenever the fair value of a security classified as available-for-sale has been below its cost basis for more than six consecutive months. In the period in which a decline in fair value is determined to be other than temporary, the carrying value of that security is written down to its fair value at the end of such period, thereby establishing a new cost basis. Unrealized holding gains and losses on investments in marketable securities that are classified as trading securities are included in other income on the consolidated statement of operations.
	3	Inventories—Inventories, which consists principally of fuel, are stated at cost determined on a first-in, first-out basis.
	4	Vessels, deferred drydocking expenditures and other property—Vessels are recorded at cost and are depreciated to their estimated salvage value on the straight-line basis over the lives of the vessels, which are generally 25 years. Each vessel’s salvage value is equal to the product of its lightweight tonnage and an estimated scrap rate of $300 per ton.
		Other property, including buildings and leasehold improvements, are recorded at cost and amortized on a straight-line basis over the shorter of the terms of the leases or the estimated useful lives of the assets, which range from three to 35 years.
		Interest costs are capitalized to vessels during the period that vessels are under construction. Interest capitalized aggregated $0 in 2013, $1,060 in 2012 and $6,767 in 2011.
		Expenditures incurred during a drydocking are deferred and amortized on the straight-line basis over the period until the next scheduled drydocking, generally two and a half to five years. The Company only includes in deferred drydocking costs those direct costs that are incurred as part of the drydocking to meet regulatory requirements, or are expenditures that add economic life to the vessel, increase the vessel’s earnings capacity or improve the vessel’s efficiency. Direct costs include shipyard costs as well as the costs of placing the vessel in the shipyard. Expenditures for normal maintenance and repairs, whether incurred as part of the drydocking or not, are expensed as incurred.
	5	Impairment of long-lived assets—The carrying amounts of long-lived assets held and used by the Company are reviewed for potential impairment whenever events or changes in circumstances indicate that the carrying amount of a particular asset may not be fully recoverable. In such instances, an impairment charge would be recognized if the estimate of the undiscounted future cash flows expected to result from the use of the asset and its eventual disposition is less than the asset’s carrying amount. This assessment is made at the individual vessel level since separately identifiable cash flow information for each vessel is available. The impairment charge, if any, would be measured as the amount by which the carrying amount of a vessel exceeded its fair value. If using an income approach in determining the fair value of a vessel, the Company will consider the discounted cash flows resulting from highest and best use of the vessel asset from a market-participant’s perspective. Alternatively, if using a market approach, the Company will obtain third party appraisals of the estimated fair value of the vessel. A long-lived asset impairment charge results in a new cost basis being established for the relevant long-lived asset. See Note 7, “Vessels, Deferred Drydock and Other Property,” for further discussion on the impairment charges recognized during the three years ended December 31, 2013.
	6	Goodwill and intangible assets—Goodwill and indefinite lived intangible assets acquired in a business combination are not amortized but are reviewed for impairment annually or more frequently if impairment indicators arise. Intangible assets with estimable useful lives are amortized over their estimated useful lives and are reviewed for potential impairment whenever events or changes in circumstances indicate that the carrying amount of the intangible may be impaired.
		The Company’s intangible assets consist primarily of long-term customer relationships acquired as part of the 2006 purchase of Maritrans, Inc. and the 2007 purchase of the Heidmar Lightering business. The long-term customer relationships are being amortized on a straight-line basis over 20 years. The Company recorded an impairment charge on the goodwill and intangible assets relating to the Heidmar Lightering business. See Note 10, “Goodwill and Intangible Assets,” for further discussion on impairment charges recognized during the year ended December 31, 2013.
	7	Deferred finance charges—Finance charges incurred in the arrangement of debt are deferred and amortized to interest expense on the straight-line basis over the life of the related debt. Prior to November 14, 2012, deferred finance charges were included in Other Assets in the consolidated balance sheet. On November 14, 2012, amortization ceased on $10,517 of deferred financing costs relating to the Unsecured Senior Notes, the $1,500,000 Unsecured Revolving Credit facility and the secured term loans, when such indebtedness and the related deferred financing costs were reclassified to Liabilities Subject to Compromise in the consolidated balance sheets (See Note 11, “Debt”). For the year ended December 31, 2013 and for the period from November 14, 2012 to December 31, 2012, the Company did not record $2,247 and $445 of interest expense relating to the amortization of deferred financing costs relating to the Unsecured Senior Notes, the $1,500,000 Unsecured Revolving Credit facility and the Secured Term Loans, which would have been incurred had the indebtedness not been reclassified. Interest expense relating to the amortization of deferred financing costs amounted to $0 in 2013, $15,260 in 2012 and $3,023 in 2011. The 2012 interest expense includes the write-off of $12,540 in deferred financing costs relating to the $900,000 Unsecured Forward Start credit facility as the Company’s Chapter 11 filing effectively terminated this credit facility agreement.
		See Note 11, “Debt,” for information relating to the December 2013 write-off of $4,603 of deferred amortization costs classified as liabilities subject to compromise.
	8	Revenue and expense recognition—Revenues from time charters and bareboat charters are accounted for as operating leases and are thus recognized ratably over the rental periods of such charters, as service is performed. Voyage revenues and expenses are recognized ratably over the estimated length of each voyage, calculated on a discharge-to-discharge basis and, therefore, are allocated between reporting periods based on the relative transit time in each period. The impact of recognizing voyage expenses ratably over the length of each voyage is not materially different on a quarterly and annual basis from a method of recognizing such costs as incurred. OSG does not begin recognizing voyage revenue until a Charter has been agreed to by both the Company and the customer, even if the vessel has discharged its cargo and is sailing to the anticipated load port on its next voyage.
		Under voyage charters, expenses such as fuel, port charges, canal tolls, cargo handling operations and brokerage commissions are paid by the Company whereas, under time and bareboat charters, such voyage costs are paid by the Company’s customers.
		For the Company’s vessels operating in pools, revenues and voyage expenses are pooled and allocated to each pool’s participants on a time charter equivalent (“TCE”) basis in accordance with an agreed-upon formula. Such TCE revenues are reported as pool revenues in the accompanying consolidated statement of operations. For the pools in which the Company participates, management monitors, among other things, the relative proportion of the Company’s vessels operating in each of the pools to the total number of vessels in each of the respective pools, and assesses whether or not OSG’s participation interest in each of the pools is sufficiently significant so as to determine that OSG has effective control of the pool. Management determined that as of June 30, 2013, it had effective control of one of the pools in which the Company participates. Such pool is not a legal entity but operates under a contractual arrangement. Therefore effective, July 1, 2013, the Company’s consolidated statement of operations reports allocated TCE revenues for such pool on a gross basis as voyage charter revenues and voyage expenses. The impact of this method of presenting earnings from this pool was an increase in voyage charter revenues and voyage expenses of $70,817 for the year ended December 31, 2013.
	9	Concentration of Credit Risk—Financial instruments that potentially subject the Company to concentrations of credit risk are voyage receivables due from charterers and pools in which the Company participates. With respect to voyage receivables, the Company limits its credit risk by performing ongoing credit evaluations. Voyage receivables reflected in the consolidated balance sheets as of December 31, 2013 and 2012 are net of an allowance for doubtful accounts of $2,024 and $2,846, respectively. The provisions for doubtful accounts for the years ended December 31, 2013, 2012 and 2011 were not material.
		During the three years ended December 31, 2013, the Company did not have any individual customers who accounted for 10% or more of its revenues apart from the pools in which it participates. The pools in which the Company participates accounted for 58% and 59% of consolidated voyage receivables at December 31, 2013 and 2012, respectively.
	10	Derivatives—ASC 815, Derivatives and Hedging, requires the Company to recognize all derivatives on the balance sheet at fair value. Derivatives that are not effective hedges must be adjusted to fair value through earnings. If the derivative is an effective hedge, depending on the nature of the hedge, a change in the fair value of the derivative is either offset against the change in fair value of the hedged item (fair value hedge), or recognized in other comprehensive income/(loss) and reclassified into earnings in the same period or periods during which the hedge transaction affects earnings (cash flow hedge). The ineffective portion (that is, the change in fair value of the derivative that does not offset the change in fair value of the hedged item) of an effective hedge and the full amount of the change in fair value of derivative instruments that do not qualify for hedge accounting are immediately recognized in earnings.
		During the year ended December 31, 2013, no ineffectiveness gains or losses were recorded in earnings relative to interest rate swaps entered into by the Company or its subsidiaries that qualified for hedge accounting. Any gain or loss realized upon the early termination of an interest rate swap is recognized as an adjustment of interest expense over the shorter of the remaining term of the swap or the hedged debt. See Note 12, “Fair Value of Financial Instruments, Derivatives and Fair Value Disclosures,” for additional disclosures on the Company’s interest rate swaps and other financial instruments.
	11	Income taxes—The Company accounts for income taxes under the asset and liability method, which requires the recognition of deferred tax assets and liabilities for the expected future tax consequences of events that have been included in the financial statements. Under this method, deferred tax assets and liabilities are determined based on the differences between the financial statements and tax basis of assets and liabilities using enacted tax rates in effect for the year in which the differences are expected to reverse. The effect of a change in tax rates on deferred tax assets and liabilities is recognized in income in the period that includes the enactment date.
		Net deferred tax assets are recorded to the extent the Company believes these assets will more likely than not be realized. In making such a determination, all available positive and negative evidence is considered, including future reversals of existing taxable temporary differences, projected future taxable income, tax-planning strategies, and results of recent operations. In the event OSG were to determine that it would be able to realize its deferred income tax assets in the future in excess of their net recorded amount, an adjustment would be made to the deferred tax asset valuation allowance, which would reduce the provision for income taxes in the period such determination is made.
		Uncertain tax positions are recorded in accordance with ASC 740, Income Taxes, on the basis of a two-step process whereby (1) the Company first determines whether it is more likely than not that the tax positions will be sustained based on the technical merits of the position and (2) those tax positions that meet the more-likely-than-not recognition threshold, the Company recognizes the largest amount of tax benefit that is greater than 50% likely to be realized upon ultimate settlement with the related tax authority.
	12	Use of estimates—The preparation of financial statements in conformity with accounting principles generally accepted in the U.S. requires management to make estimates and assumptions that affect the amounts of assets, liabilities, equity, revenues and expenses reported in the financial statements and accompanying notes. The most significant estimates relate to the depreciation of vessels and other property, amortization of drydocking costs, estimates used in assessing the recoverability of goodwill, intangible and other long-lived assets, liabilities incurred relating to pension benefits, liabilities subject to compromise and income taxes. Actual results could differ from those estimates.
	13	Issuance of shares or units by subsidiaries—The Company accounts for gains or losses from the issuance of shares or units by its subsidiaries as an adjustment to equity.
	14	Recently adopted accounting standards—In February 2013, the FASB issued ASU 2013-02, Reporting of Amounts Reclassified Out of Accumulated Other Comprehensive Income, which adds new disclosure requirements, intended to improve the transparency of changes in other comprehensive income and items reclassified out of accumulated other comprehensive income/(loss). This guidance, which is to be applied prospectively, was effective for the Company’s annual and interim periods beginning January 1, 2013. The adoption of this accounting standard resulted in a change in the presentation of disclosures relating to accumulated other comprehensive income/(loss).
	15	Newly issued accounting standards— In February 2013, the FASB also issued ASU No. 2013-04, Obligations Resulting from Joint and Several Liability Arrangements for Which the Total Amount of the Obligation is Fixed at the Reporting Date, to address the diversity in practice in accounting for joint and several liabilities. The standard addresses the recognition, measurement, and disclosure of obligations resulting from joint and several liability arrangements for which the total amount under the arrangement is fixed at the reporting date. An entity would measure its obligation from a joint and several liability arrangement as the sum of the amount the entity agreed with its co-obligors that it will pay, and any additional amount the entity expects to pay on behalf of its co-obligors. The standard is effective for public companies for fiscal years, and interim periods within those fiscal years, beginning after December 15, 2013. Early application is permitted. OSG does not believe the adoption of the new accounting guidance will have a significant impact on its consolidated financial statements.
		In July 2013, the FASB issued ASU No. 2013-11, Presentation of an Unrecognized Tax Benefit When a Net Operating Loss Carryforward, a Similar Tax Loss, or a Tax Credit Carryforward Exists, to address the diversity in practice in presenting unrecognized tax benefits on the balance sheet. The standard provides explicit guidance requiring that an unrecognized tax benefit, or a portion of an unrecognized tax benefit, be presented in the financial statements as a reduction to a deferred tax asset for a net operating loss carryforward, a similar tax loss, or a tax credit carryforward, except when certain circumstances enumerated in the standard exist. The required presentation should better reflect the manner in which an entity would settle at the reporting date any additional income taxes that would result from the disallowance of a tax position when net operating loss carryforwards, similar tax losses or tax carryforwards exist. The amendments in this update are effective for public companies for fiscal years, and interim periods within those fiscal years, beginning after December 15, 2013. Early adoption is permitted. OSG does not believe the adoption of the new accounting guidance will have a significant impact on its consolidated financial statements.

EARNINGS_PER_COMMON_SHARE

EARNINGS PER COMMON SHARE	12 Months Ended
	Dec. 31, 2013
Earnings Per Share [Abstract]	'
Earnings Per Share [Text Block]	'
	NOTE 5 — EARNINGS PER COMMON SHARE:
	Basic earnings per share is computed by dividing earnings, after the deduction of dividends and undistributed earnings allocated to participating securities, by the weighted average number of common shares outstanding during the period. The computation of diluted earnings per share assumes the issuance of common stock for all potentially dilutive stock options and restricted stock units not classified as participating securities. Participating securities are defined as unvested share-based payment awards that contain nonforfeitable rights to dividends or dividend equivalents and are included in the computation of earnings per share pursuant to the two-class method. At December 31, 2013, 2012 and 2011, there were  221,052,  740,594 and  173,006 such participating securities outstanding, respectively.
	The components of the calculation of basic earnings per share and diluted earnings per share are as follows:
	For the year ended December 31,	2013		2012		2011
	Net loss	$	-638,230	$	-480,114	$	-201,363
	Common shares outstanding, basic and diluted:
	Weighted average shares outstanding, basic and diluted		30,482,818		30,339,258		30,228,441
	There were no dilutive equity awards outstanding as of December 31, 2013, 2012 or 2011. Awards of  1,041,723,  2,383,896 and  1,857,233 shares of common stock for 2013, 2012 and 2011, respectively, were not included in the computation of diluted earnings per share because inclusion of these awards would be anti-dilutive.

BUSINESS_AND_SEGMENT_REPORTING

BUSINESS AND SEGMENT REPORTING	12 Months Ended
	Dec. 31, 2013
Segment Reporting [Abstract]	'
Segment Reporting Disclosure [Text Block]	'
	NOTE 6 — BUSINESS AND SEGMENT REPORTING:
	The Company is engaged primarily in the ocean transportation of crude oil and petroleum products in both the international market and the U.S. Flag trades through the ownership and operation of a diversified fleet of vessels. The shipping industry has many distinct market segments based, in large part, on the size and design configuration of vessels required and, in some cases, on the flag of registry. Rates in each market segment are determined by a variety of factors affecting the supply and demand for vessels to move cargoes in the trades for which they are suited. Tankers are not bound to specific ports or schedules and therefore can respond to market opportunities by moving between trades and geographical areas. The Company charters its vessels to commercial shippers and U.S. and foreign governments and governmental agencies primarily on voyage charters and on time charters.
	The Company has three reportable segments: International Crude Tankers, International Product Carriers and U.S. Flag vessels. Income/(loss) from vessel operations for segment reporting is defined as income/(loss) from vessel operations before general and administrative expenses, severance and relocation costs, shipyard contract termination costs, gain/(loss) on disposal of vessels and impairment charges. The accounting policies followed by the reportable segments are the same as those followed in the preparation of the Company’s consolidated financial statements.
	Information about the Company’s reportable segments as of and for each of the years in the three year period ended December 31, 2013 follows:
		International
		Crude		Product
		Tankers		Carriers		Other		U.S.		Totals
	2013
	Shipping revenues	$	352,871	$	223,789	$	3,286	$	436,050	$	1,015,996
	Time charter equivalent revenues		209,876		146,711		3,225		403,516		763,328
	Depreciation and amortization		76,086		29,465		2,818		67,907		176,276
	Gain/(loss) on disposal of vessels, including		-328,146		-38,395		117		1,167		-365,257
	impairments
	Goodwill and other intangibles impairment charge		-16,214		-		-		-		-16,214
	Income/(loss) from vessel operations		-17,806		22,077		-3,104		113,866		115,033
	Equity in income of affiliated companies		29,746		-		7,542		3,606		40,894
	Investments in affiliated companies at		271,009		4,505		44,278		3,535		323,327
	December 31, 2013
	Total assets at December 31, 2013		1,356,796		544,062		44,591		1,061,866		3,007,315
	Expenditures for vessels		26,106		7,607		-3		2,667		36,377
	Payments for drydockings		8,003		2,270		-		11,751		22,024
	2012
	Shipping revenues		343,541		331,634		10,156		451,803		1,137,134
	Time charter equivalent revenues		256,843		171,881		10,071		402,051		840,846
	Depreciation and amortization		83,558		43,239		5,392		69,095		201,284
	Gain/(loss) on disposal of vessels,		-102,242		-160,706		8,085		-16,496		-271,359
	including impairments
	Income/(loss) from vessel operations		-70,909		-59,111		-4,243		118,397		-15,866
	Equity in income of affiliated companies		18,658		-		11,378		3,450		33,486
	Investments in affiliated companies at		241,198		6,000		1,700		3,500		252,398
	December 31, 2012
	Total assets at December 31, 2012		1,739,740		620,731		2,333		1,123,368		3,486,172
	Expenditures for vessels		33,488		18,563		6		547		52,604
	Payments for drydockings		20,063		7,166		-		18,761		45,990
	2011
	Shipping revenues		337,137		321,322		13,285		377,787		1,049,531
	Time charter equivalent revenues		266,429		178,823		13,228		331,721		790,201
	Depreciation and amortization		74,392		35,385		5,809		64,135		179,721
	Gain/(loss) on disposal of vessels		673		-71		-29		1,487		2,060
	Income/(loss) from vessel operations		-71,033		-42,021		-828		52,812		-61,070
	Equity in income/(loss) of affiliated companies		8,985		-		7,157		4,413		20,555
	Investments in affiliated companies at		211,406		3,855		12,669		4,440		232,370
	December 31, 2011
	Total assets at December 31, 2011		1,848,531		878,884		22,395		1,125,634		3,875,444
	Expenditures for vessels		45,654		79,492		-		62,364		187,510
	Payments for drydockings		16,600		14,166		-		16,594		47,360
	The U.S. Flag segment includes an International Flag Product Carrier that exited the U.S. Maritime Security Program in the fourth quarter of 2012 but is still owned by a U.S. domiciled corporation. The joint venture with four LNG Carriers is included in Other along with one chartered–in LPG Carrier, which was  redelivered to its owners in July 2011, a chartered-in Chemical Carrier, which was  redelivered to its owners in October 2013, and one owned Pure Car Carrier, which was disposed of in October 2012.
	Reconciliations of time charter equivalent revenues of the segments to shipping revenues as reported in the consolidated statements of operations follow:
	For the year ended December 31,	2013		2012		2011
	Time charter equivalent revenues	$	763,328	$	840,846	$	790,201
	Add: Voyage expenses		252,668		296,288		259,330
	Shipping revenues	$	1,015,996	$	1,137,134	$	1,049,531
	Consistent with general practice in the shipping industry, the Company uses time charter equivalent revenues, which represents shipping revenues less voyage expenses, as a measure to compare revenue generated from a voyage charter to revenue generated from a time charter. Time charter equivalent revenues, a non-GAAP measure, provides additional meaningful information in conjunction with shipping revenues, the most directly comparable GAAP measure, because it assists Company management in making decisions regarding the deployment and use of its vessels and in evaluating their financial performance.
	Reconciliations of income/(loss) from vessel operations of the segments to loss before reorganization items and income taxes, as reported in the consolidated statements of operations follow:
	For the year ended December 31,	2013		2012		2011
	Total income/(loss) from vessel operations of all segments	$	115,033	$	-15,866	$	-61,070
	General and administrative expenses		-97,663		-88,845		-83,178
	Severance and relocation costs		-3,097		-3,163		-
	Goodwill and other intangibles impairment charge		-16,214		-		-
	(Loss)/gain on disposal of vessels, including impairments		-365,257		-271,359		2,060
	Consolidated loss from vessel operations		-367,198		-379,233		-142,188
	Equity in income of affiliated companies		40,894		33,486		20,555
	Other income/(expense)		849		-1,314		2,154
Interest expense		-350		-93,421		-79,898
Loss before reorganization items and income taxes	$	-325,805	$	-440,482	$	-199,377
Reconciliations of total assets of the segments to amounts included in the consolidated balance sheets follow:
At December 31,	2013		2012
Total assets of all segments	$	3,007,315	$	3,486,172
Corporate cash and securities		601,927		507,342
Other unallocated amounts		35,252		50,021
Consolidated total assets	$	3,644,494	$	4,043,535
Certain additional information about the Company’s operations for each of the years in the three year period ended December 31, 2013 follows:
	Consolidated		International		U.S.
2013
Shipping revenues	$	1,015,996	$	579,946	$	436,050
Total vessels, deferred drydock and other property at December 31, 2013		2,416,600		1,459,220		957,380
2012
Shipping revenues		1,137,134		685,331		451,803
Total vessels, deferred drydock and other property at December 31, 2012		2,911,706		1,902,728		1,008,978
2011
Shipping revenues		1,049,531		671,744		377,787
Total vessels, deferred drydock and other property at December 31, 2011		3,292,946		2,293,011		999,935

VESSELS_DEFERRED_DRYDOCK_AND_O

VESSELS, DEFERRED DRYDOCK AND OTHER PROPERTY	12 Months Ended
	Dec. 31, 2013
Property, Plant and Equipment [Abstract]	'
Property, Plant and Equipment Disclosure [Text Block]	'
	NOTE 7 — VESSELS, DEFERRED DRYDOCK AND OTHER PROPERTY:
	Vessels and other property consist of the following:
	As of December 31,		2013			2012
	Vessels, at cost	$	2,784,023		$	3,307,813
	Accumulated depreciation		-495,391			-591,256
	Vessels, net		2,288,632			2,716,557
	Construction in progress		54,644			95,283
	Other property, at cost		45,633			71,306
	Accumulated depreciation and amortization		-29,557			-45,858
	Other property, net		16,076			25,448
	Total Vessels and other property	$	2,359,352		$	2,837,288
	A breakdown of the carrying value of the Company’s vessels, excluding construction in progress, by reportable segment and fleet as of December 31, 2013 and 2012 follows:
	As of December 31, 2013
									Net				Average	Number of
					Accumulated				Carrying				Vessel Age	Owned
		Cost			Depreciation				Value				(by dwt)	Vessels
	International Flag Crude Tankers
	VLCCs (includes ULCC)	$	722,863		$	-164,911			$	557,952	-1		10.5	11
	Aframaxes (includes OSG Lightering fleet)		279,506			-57,403				222,103	-2		10.7	9
	Panamaxes		145,168			-				145,168			11.1	9
	Total International Flag Crude Tankers		1,147,537			-222,314				925,223			10.6	29
	International Flag Product Carriers
	Panamax		196,470			-31,856				164,614			5.1	4
	Handysize		289,276			-26,063				263,213			8.2	13
	Total International Flag Product Carriers		485,746			-57,919				427,827	-3		7.2	17
	Total U.S. Flag Vessels (4)		1,150,740			-215,158				935,582			7.2	15
	Fleet Total	$	2,784,023		$	-495,391			$	2,288,632			9.8	61
	(1)Includes five VLCCs that are pledged as collateral under secured term loans due through 2020 and 2023, as discussed in Note 11, "Debt," with an aggregate carrying value of $343,590.
	(2)Includes three Aframaxes that are pledged as collateral under secured term loans due through 2020 and 2023, as discussed in Note 11, "Debt," with an aggregate carrying value of $78,462.
	(3)Includes five Handysize Product Carriers and two Panamax Product Carriers that are pledged as collateral under secured term loans due through 2020, as discussed in Note 11, "Debt," with an aggregate carrying value of $143,880.
	(4)Includes one International Flag Handysize Product Carrier that is owned by a U.S. domiciled corporation.
	As of December 31, 2012
							Net			Average		Number of
				Accumulated			Carrying			Vessel Age		Owned
		Cost		Depreciation			Value			(by dwt)		Vessels
	International Flag Crude Tankers
	VLCCs (includes ULCC)	$	869,186	$	-157,359		$	711,827		9.5		11
	Suezmaxes		734		-450		$	284		N/A		-
	Aframaxes (includes OSG Lightering fleet)		279,947		-69,321		$	210,626		11		8
	Panamaxes		467,984		-149,874		$	318,110		10.1		9
	Total International Flag Crude Tankers		1,617,851		-377,004			1,240,847		9.8		28
	International Flag Product Carriers
	Panamax		249,028		-33,078			215,950		4.1		4
	Handysize		290,055		-13,672			276,383		7.2		13
	Total International Flag Product Carriers		539,083		-46,750			492,333		6.2		17
	Total U.S. Flag Vessels		1,150,879		-167,502			983,377		6.2		15
	Fleet Total	$	3,307,813	$	-591,256		$	2,716,557		9		60
	Vessel activity, excluding construction in progress, for the three years ended December 31, 2013 is summarized as follows:
					Accumulated				Net Book
		Vessel Cost			Depreciation				Value
	Balance at December 31, 2010	$	3,045,023		$	-686,055			$	2,358,968
	Purchases and vessel additions		38,203			-
	Transfers from construction in progress		710,793			-
	Disposals and transfers to held for sale		-17,675			7,523
	Depreciation		-			-140,023
	Balance at December 31, 2011		3,776,344			-818,555				2,957,789
	Purchases and vessel additions		7,983			-
	Transfers from construction in progress		189,105			-
	Disposals		-29,653			25,104
	Depreciation		-			-154,997
	Impairment		-635,966			357,192
	Balance at December 31, 2012		3,307,813			-591,256				2,716,557
	Purchases and vessel additions		2,809			-
Transfers from construction in progress		71,553			-
Disposals		-4,951			1,837
Depreciation		-			-133,197
Impairment		-593,201			227,225
Balance at December 31, 2013	$	2,784,023		$	-495,391			$	2,288,632
The total of purchases and vessel additions and transfers from construction in progress will differ from expenditures for vessels as shown in the consolidated statements of cash flows because of expenditures for vessels remaining under construction at the beginning and end of each respective period.
Purchase and Construction Commitments
As of December 31, 2013, the Company had remaining commitments of $34,885 under a non-cancelable contract for the construction of an LR2, which is a coated Aframax and for the conversion of a chartered-in U.S. Flag Product Carrier into a shuttle tanker. The LR2, which will be wholly owned by the Company, is scheduled for delivery in the second quarter of 2014. The shuttle tanker conversion project is expected to be completed during the third quarter of 2014.
Vessel Impairments
International Fleet
Management determined that certain events had occurred during the fourth quarter of 2013 with respect to the certain vessels within the Company’s International Flag fleet that Management viewed as impairment indicators, triggering the need for an impairment assessment as of December 31, 2013. Such events included (i) the Company’s  intentions relative to two older, non-core Aframaxes employed in Lightering through 2013, specifically, management’s assessment of whether or not the Company would drydock and continue to trade such vessels, given the current and expected rate environment, (ii) a significant year-over-year decline in third party valuation appraisals of the three Aframaxes that are not pledged as collateral under the secured facilities referred to below and all nine older Panamaxes in the Company’s International Flag fleet and (iii) the inability to  reach mutually agreeable terms with the Export- Import Bank of China (“CEXIM”) and Danish Ship Finance (“DSF”) (collectively, the “Secured Banks”) on how the Debtors might refinance the term loan facilities the Company has with these Banks in order to retain the five VLCCs, three Aframaxes, five MRs and two LR1s securing these loans after emergence from bankruptcy protection.
Subsequent to year end, the Debtors and certain of the lenders holding an aggregate of approximately 72% of amounts outstanding under the Company’s Unsecured Revolving Credit Facility, entered into a plan support agreement (the “Plan Support Agreement”), which among other things provides for the use of proceeds that will be generated from exit financing and an equity rights offering in full satisfaction of amounts under the CEXIM and DSF term loans (See Note 24, “Subsequent Events”).
Accordingly, the Company performed impairment tests on 29 of its owned operating International Crude and Products vessels as of December 31, 2013, including five Product Carriers for which impairment charges were taken in 2012. In developing estimates of future cash flows, the Company made assumptions about future performance, with significant assumptions being related to charter rates, ship operating expenses, utilization, drydocking requirements, residual value and the estimated remaining useful lives of the vessels. These assumptions are based on historical trends as well as future expectations. Management prepared undiscounted cash flows weighted based on probabilities assigned to possible outcomes for the vessels, including a  probability that all the vessels will continue to be held for use for the remainder of their useful lives and a probability that such vessels will be sold or transferred to the respective lenders at fair value during 2014. Specifically, in estimating future charter rates, management took into consideration rates currently in effect for existing time charters and estimated daily time charter equivalent rates for each vessel class for the unfixed days over the estimated remaining lives of each of the vessels. The estimated daily time charter equivalent rates used for unfixed days were based on a combination of (i) internally forecasted rates that are consistent with forecasts provided to the Company’s senior management and Board of Directors, and (ii) the trailing 10-year historical average rates, based on quarterly average rates published by a third party maritime research service. The internally forecasted rates are based on management’s evaluation of current economic data and trends in the shipping and oil and gas industries. In addition, the Company took into consideration the potentially favorable impact of the Plan Support Agreement which increases the probability that the fifteen vessels securing the CEXIM and DSF term loans will continue to be held for use as part of the International Flag fleet. In estimating the fair value of the vessels for the purposes of step 2 of the impairment tests, the Company utilized a market approach consisting of using an average of three third party appraisals net of a customary 2% broker commissions.  Based on the tests performed, impairment charges totaling $365,976 were recorded on two VLCCs, two Aframaxes and  two LR1s that are pledged as collateral under the secured facilities, and nine Panamaxes to write-down their carrying values to their estimated fair values at December 31, 2013. Such impairment charges include $173,190 and $38,301 applicable to vessels that are pledged as collateral under the CEXIM and DSF term loans, respectively.
Management also gave consideration as to whether other events or changes in circumstances had occurred since December 31, 2012 that could indicate that the carrying amounts of the remaining vessels in its International Flag fleet may not be recoverable as of December 31, 2013. Management concluded that no such events had occurred.
In connection with the goodwill and intangible assets impairment tests performed as of December 31, 2013 (see Note 10, “Goodwill and Intangible Assets”), the Company also recorded a write down aggregating $462 on transportation equipment utilized in the full-service operations of the Company’s International Crude Lightering business.
At December 31, 2012, the Company gave consideration to events or changes in circumstances that could indicate that the carrying amounts of the vessels in the Company’s International Flag fleet may not be recoverable, including factors such as the impact of the Chapter 11 Cases discussed in Note 2, “Bankruptcy Filing and Going Concern” above, as well as the fact that average spot rates achieved in the Company’s International Flag segments continued to face downward pressure since the industry’s cyclical downturn that began in the fourth quarter of 2008. These factors combined with the likelihood that the current markets would continue in the near term, putting continued pressure on second hand tanker values, were indicators warranting impairment tests of the Company’s International Flag fleet as of December 31, 2012. Accordingly, the Company performed impairment tests on all of its owned operating and newbuild International Crude and Products vessels as of December 31, 2012. The forecasted rates used in the impairment test performed at December 31, 2012 were lower than those used during the prior quarters of 2012 as there was increasing evidence (as noted in forecasts published by analysts at the time) that the recovery in the Crude and Products markets would be both delayed and not as pronounced, thus delaying recovery to historical averages. The Company also took into consideration the Company’s long-term intentions relative to certain of its older or non-core vessels, including management’s assessment of whether the Company would drydock and continue to trade them given the then existing and expected weak rate environment. In developing estimates of future cash flows, the Company made assumptions about future performance, with significant assumptions being related to charter rates, ship operating expenses, utilization, drydocking requirements, residual value and the estimated remaining useful lives of the vessels. These assumptions were based on historical trends as well as future expectations. The basis for estimating daily time charter equivalent rates for fixed and unfixed days were consistent with those described above. In estimating the fair value of the vessels for the purposes of step 2 of the impairment tests, the Company utilized a market approach by using third party appraisals. Based on the tests performed, impairment charges totaling $278,345, including $608 recorded as a reduction in deferred drydock costs, were recorded on one ULCC, two VLCCs, two International Flag Aframaxes engaged in Lightering in the U.S. Gulf and ten Handysize Product Carriers (including $94,288 applicable to five Handysize Product Carriers that are pledged as collateral under the term loans maturing in 2020) to write-down their carrying values to their estimated fair values at December 31, 2012.
U.S. Flag fleet
The Company also considered the need to test its U.S. Flag fleet for impairment as of December 31, 2013 and 2012, but did not identify events or changes in circumstances that warranted impairment testing. Factors considered included the positive impact of the resolution of uncertainties concerning two ATB assets employed in the Delaware Bay Lightering business in the third quarter of 2012, the overall turnaround in the Company’s U.S. Flag business over the past three years and the lack of similar downward rate pressure as that seen in the international markets. Specifically, in 2013 and 2012, spot rates continued to increase due to increasing demand for Jones Act tankers and barges resulting from the emerging trade in U.S. Shale Oil. As a result, the Company’s U.S. Flag fleet ATB’s are increasingly able to secure term charter business at rates that are sufficient to recover their carrying values. U.S. Flag market fundamentals are expected to remain strong during 2014 as there are currently no idle vessels in the marketplace.
In December 2012, the Company recognized an impairment charge of $1,037 to write-down the carrying value of a spare tug boat that had been idle since mid-2011 to its estimated sales price less costs to dispose. This tug boat was subsequently delivered to buyers in April 2013.
Shipyard Contract Termination
On March 13, 2009, the Company entered into a termination agreement with Bender Shipbuilding & Repair Co., Inc. (“Bender”) to terminate construction agreements covering six ATBs and two tug boats. Under the terms of the agreement, Bender agreed to transfer ownership of the unfinished vessels (and all related components and equipment) to OSG in their current state of completion in consideration for which OSG would, among other things render a payment of $14,000 to a third party for the release of priority liens on the vessels being transferred to the Company. The Company completed construction at alternative shipyards of the two ATBs, which were delivered in March 2010 and April 2011, and the two tug boats, which were delivered in June and September 2011.
Unsecured creditors filed an involuntary petition for bankruptcy against Bender in June 2009 that was subsequently converted to a voluntary petition. In December 2010, a settlement agreement was reached by the creditors of Bender, leading to the approval by the bankruptcy court of a liquidation plan that resulted in OSG making further recoveries against the $14,000 described above, which was documented as a secured loan. During 2012 and 2011, approximately $588 and $3,400 were recovered from property sales in accordance with the liquidation plan. Such recoveries are included in (gain)/loss on disposal of vessels in the consolidated statements of operations.
Vessel Deliveries
During the year ended December 31, 2013 the Company completed construction of an International Flag Aframax. During 2012, the Company completed construction of a VLCC and an International Flag Handysize Product Carrier. During 2011, the Company completed construction of a U.S. Flag ATB, two International Flag Panamax Product Carriers, one VLCC, an International Flag Handysize Product Carrier and two tug boats.
Vessel Sales
The Company recognized a gain on disposal of vessels of $1,167 for the year ended December 31, 2013 relating to the sale of vessel engine parts and the spare U.S. Flag tug boat referred to above.
In the fourth quarter of 2012, the Company delivered its Car Carrier, the Overseas Joyce, to buyers and recognized a gain of approximately $8,078 on this sale.
During 2011, the Company delivered its two remaining single-hulled U.S. Flag Tankers (one of which was classified as held for sale on the December 31, 2010 consolidated balance sheet) and the remaining chartered-in single-hulled International Flag Aframax in which it had a residual interest to buyers. The Company recognized a gain of $2,117 on these transactions. Also, in October 2011, the Company delivered a U.S. Flag Lightering ATB to buyers, recognizing a gain of $1,464. The gain on disposal of vessels during 2011 also includes approximately $3,400 in proceeds received in connection with property sales in accordance with the Bender bankruptcy liquidation plan, as discussed above, and a loss of approximately $4,583 related to the cancellation of an order with an equipment supplier and the retirement of vessel support equipment.
Drydocking activity for the three years ended December 31, 2013 is summarized as follows:
For the year ended December 31,		2013			2012				2011
Balance at January 1	$	74,418		$	66,023			$	46,827
Payments for drydocking		22,024			45,990				47,360
Sub-total		96,442			112,013				94,187
Drydock amortization		-32,648			-34,382				-27,680
Amounts recognized upon sale/redelivery of vessels and non-cash adjustments		-6,546			-2,605				-484
Impairments		-			-608				-
Balance at December 31	$	57,248		$	74,418			$	66,023

EQUITY_METHOD_INVESTMENTS

EQUITY METHOD INVESTMENTS	12 Months Ended
	Dec. 31, 2013
Equity Method Investments and Joint Ventures [Abstract]	'
Equity Method Investments and Joint Ventures Disclosure [Text Block]	'
	NOTE 8 — EQUITY METHOD INVESTMENTS:
	Investments in affiliated companies include joint ventures accounted for using the equity method. As of December 31, 2013, the Company had an approximate  50% interest in two joint ventures. One joint venture operates four LNG Carriers. The other joint venture converted two ULCCs to Floating, Storage and Offloading Service Vessels, one of which commenced service on January 5, 2010 and the other which commenced service on August 30, 2010. In addition, the Company has a 37.5% interest in Alaska Tanker Company, LLC, which manages vessels carrying Alaskan crude for BP.
	Floating Storage and Offloading Service (“FSO”) Vessels
	Maersk Oil Qatar AS (“MOQ”) awarded two service contracts to a joint venture between OSG and Euronav NV to provide to MOQ two vessels, the FSO Asia and the FSO Africa, to perform FSO services in the Al Shaheen field off shore Qatar after each vessel had been converted to an FSO. The Company has a 50% interest in this joint venture, held indirectly by OSG International, Inc. The joint venture financed the purchase of the vessels from each of Euronav NV and OSG and their conversion costs through partner loans and long-term bank financing, which was secured by, among other things, the service contracts and the FSOs themselves. Approximately $196,500 and $246,326 was outstanding under this secured facility as of December 31, 2013 and 2012, respectively, with the outstanding amount of this facility being subject to acceleration, in whole or in part, on termination of one or both of such service contracts.  On August 29, 2013 the long-term bank financing agreement was amended and restated to, among other things, reschedule a $45,000 balloon payment due on August 30, 2013 to be paid in seven quarterly installments of $6,250, with the first installment due November 30, 2013, with a final payment of $1,250 due on August 31, 2015 and increase the margin on such debt by 50 basis points. In connection with the secured bank financing, the partners severally issued 50% guarantees. As of December 31, 2013 and 2012, the carrying value of the Company’s guaranty, which is included in other liabilities in the accompanying balance sheet, was $0 and $29, respectively.
	On October 1, 2012, the FSO Africa commenced a new five-year FSO services contract with MOQ, replacing the existing service contract that was originally scheduled to expire in August 2013. The new service contract provides for an increase in the daily hire rate to the same daily hire rate schedule as for the existing service contract for the FSO Asia and grants MOQ the option to extend the contract for one or two additional years.
	The joint venture entered into floating-to-fixed interest rate swaps with major financial institutions all of which were being accounted for as cash flow hedges as of December 31, 2009. The interest rate swaps, covering notional amounts aggregating $304,472 and $351,987 at December 31, 2013 and 2012, respectively, pay fixed rates of 3.9% and receive floating rates based on LIBOR. These agreements have maturity dates ranging from July to September 2017. As a result of the delays in the completion of conversion and commencement of the service contract for the FSO Africa the Company concluded in the first quarter of 2010, that it was no longer probable that the forecasted transaction applicable to the FSO Africa swaps would occur. Accordingly, as a result of the de-designation of the FSO Africa swaps, amounts previously included in accumulated comprehensive loss and all subsequent changes in the market value of the swaps have been recognized in the joint venture’s statement of operations. The Company’s share of such (gains)/losses recognized in equity in income from affiliated companies for the years ended December 31, 2013, 2012 and 2011 were $(280), $2,216, and $6,574 respectively, As of December 31, 2013 and 2012, the joint venture had a liability of $22,083 and $34,872, respectively, for the fair value of the swaps associated with the FSO Africa and FSO Asia. The Company’s share of the effective portion of such amounts, aggregating $5,064 and $8,206 at December 31, 2013 and 2012, respectively, is included in accumulated other comprehensive loss in the accompanying consolidated balance sheet and is associated with the FSO Asia swaps only since the swaps associated with the FSO Africa were de-designated and deemed to be ineffective.
	The Company’s Chapter 11 filing has no impact on the continued operations of the FSO joint venture, including the ability of the joint venture to continue to perform its obligations under the existing charters as well as its ability to continue to service its outstanding debt obligations and maintain continued compliance with the covenants under such debt agreements. On November 12, 2012, MOQ issued a waiver to the FSO joint venture agreeing not to exercise its rights to terminate the service contracts. The initial waiver period expired on February 15, 2013 and was subsequently extended to July 15, 2014, with MOQ having the right to terminate such waiver at an earlier date upon occurrence of certain events or after giving a 90-day notice of its intent to do so. In November 2012, the joint venture also obtained waivers of any events of default arising as a result of the commencement of the Chapter 11 Cases from (i) the bank syndicate for the secured loan facility, (ii) the counterparties to the interest rate swaps agreements described above, and (iii) the bank that has issued performance guarantees of the joint venture’s performance of certain of its obligations under the FSO Africa and FSO Asia service contracts. The initial waiver periods on all such waivers expired on February 15, 2013 and were subsequently extended to July 15, 2014, subject to the occurrence of certain events.
	LNG Joint Venture
	In November 2004, the Company formed a joint venture with Qatar Gas Transport Company Limited (Nakilat) (“QGTC”) whereby companies in which OSG holds a 49.9% interest ordered four 216,200 cbm LNG Carriers. Upon delivery in late 2007 and early 2008, these vessels commenced 25-year time charters to Qatar Liquefied Gas Company Limited (II) (“QG II”). QTGC subsequently contributed its ownership interests in the joint venture to its wholly owned subsidiary, Nakilat Marine Services Ltd. (“NMS”). The aggregate construction cost for such newbuildings was financed by the joint venture through long-term bank financing that is nonrecourse to the partners and partner contributions. Approximately $750,576 and $783,839 was outstanding under this secured facility as of December 31, 2013 and 2012. The joint venture has entered into floating-to-fixed interest rate swaps with a group of major financial institutions pursuant to which it pays fixed rates of approximately 4.9% and receives a floating rate based on LIBOR. The interest rate swaps agreements have maturity dates ranging from July to November 2022 and cover notional amounts aggregating $727,663 and $760,293 at December 31, 2013 and 2012, respectively. These swaps are being accounted for as cash flow hedges. As of December 31, 2013 and 2012, the joint venture recorded a liability of $108,725 and $181,958, respectively, for the fair value of these swaps. The Company’s share of the effective portion of the fair value of these swaps, $54,199 and $90,731 at December 31, 2013 and 2012, respectively, is included in accumulated other comprehensive loss in the accompanying consolidated balance sheet.
	In September 2012, the LNG joint venture entered into charter addendums to, among other things; increase the operating expense portion of the charter hire rates on the LNG Carriers retroactively from June 1, 2010. The Company’s share of the retroactive increases recognized in equity in income from affiliates for the year ended December 31, 2012 was $4,103.
	The Company’s Chapter 11 filing has no impact on the continued operations of the LNG joint venture, including the ability of the joint venture to continue to perform its obligations under the existing charters as well as its ability to continue to service its outstanding debt obligations and maintain continued compliance with the covenants under such debt agreements. While the Company’s view was that the Company’s Chapter 11 filing did not constitute an event of default under the joint venture shareholders’ agreement, in an abundance of caution, in November 2012 NMS granted the Company a 30-day waiver of the events of default under this agreement. The waiver was extended in December 2012 and automatically renews every 30 days unless NMS gives a notice of its intent to terminate such waiver.
	On November 14, 2012, QG II agreed not to terminate the charter agreements nor exercise its options to purchase or bareboat charter any of the LNG Carriers, pursuant to the terms of the charter agreements, as a result of or in connection with the Company’s Chapter 11 filing. This undertaking lapsed after 30 days and was not deemed necessary to extend since on November 21, 2012, QGTC executed deeds of guarantee to QG II, guaranteeing that the joint venture will duly perform and comply with its obligations under all four charter agreements. These guarantees serve as replacements of the guarantees previously issued by OSG in November 2004. QGTC’s guarantees, as subsequently amended and extended, are effective through the earlier of (i) June 8, 2014, or (ii) OSG’s consummation of a Chapter 11 reorganization plan, attainment of a corporate credit rating acceptable to QG II, and issuance by OSG of a replacement guarantee in a form acceptable to QG II this is binding on OSG following the consummation of a Chapter 11 reorganization plan.
	See Note 12, "Fair Value of Financial Instruments, Derivatives and Fair Value Disclosures" and Note 16, “Accumulated Other Comprehensive Loss,” for additional disclosures relating to the FSO and LNG joint venture interest rate swap agreements.
	Alaska Tanker Company
	In the first quarter of 1999, OSG, BP, and Keystone Shipping Company formed Alaska Tanker Company, LLC (“ATC”) to manage the vessels carrying Alaskan crude oil for BP. ATC provides marine transportation services in the environmentally sensitive Alaskan crude oil trade. Each member in ATC is entitled to receive its respective share of any incentive charter hire payable by BP to ATC.
	A condensed summary of the combined assets and liabilities of the equity method investments follows:
	As of December 31,	2013		2012
	Current assets	$	197,625	$	155,142
	Vessels, net		1,576,692		1,640,910
	Other assets		53,274		60,362
	Total assets	$	1,827,591	$	1,856,414
	Current liabilities	$	179,913	$	225,551
	Long-term debt and other non-current liabilities		1,548,484		1,680,178
	Equity/(accumulated deficit)		99,194		-49,315
	Total liabilities and equity/(accumulated deficit)	$	1,827,591	$	1,856,414
	As of December 31, 2013 and 2012, the affiliated companies in which OSG held an equity interest had total bank debt outstanding of $947,076 and $1,030,165, respectively, of which $750,576 and $783,839, respectively, was nonrecourse to the Company. The Company’s percentage interest in the equity method investments with bank debt approximates 50%.
	A condensed summary of the results of operations of the equity method investments follows:
	For the year ended December 31,	2013		2012		2011
	Shipping revenues	$	384,040	$	368,802	$	354,559
	Ship operating expenses		-248,924		-240,950		-239,885
	Income from vessel operations		135,116		127,852		114,674
	Other expense		-1,588		-1,419		-1,364
	Interest expense		-54,007		-65,936		-74,828
	Net income	$	79,521	$	60,497	$	38,482

VARIABLE_INTEREST_ENTITIES_VIE

VARIABLE INTEREST ENTITIES ("VIEs")	12 Months Ended
	Dec. 31, 2013
Disclosure Of Variable Interest Entities [Abstract]	'
Disclosure of Variable Interest Entities [Text Block]	'
	NOTE 9 —VARIABLE INTEREST ENTITIES (“VIEs”):
	At December 31, 2013, the Company participates in four commercial pools and three joint ventures. Commercial pools operate a large number of vessels as an integrated transportation system, which offers customers greater flexibility and a higher level of service while achieving scheduling efficiencies. Participants in the commercial pools contribute one or more vessels and generally provide an initial contribution towards the working capital of the pool at the time they enter their vessels. The pools finance their operations primarily through the earnings that they generate.
	The Company enters into joint ventures to take advantage of commercial opportunities. The Company has entered into three joint ventures with different partners (see Note 8, “Equity Method Investments”). In each joint venture, the Company has the same relative rights and obligations and financial risks and rewards as its partners. The Company evaluated all seven arrangements to determine if they were variable interest entities (“VIEs”). The Company determined that two of the pools and one of the joint ventures met the criteria of a VIE and, therefore, the Company reviewed its participation in these VIEs to determine if it was the primary beneficiary of any of them.
	The Company reviewed the legal documents that govern the creation and management of the VIEs described above and also analyzed its involvement to determine if the Company was a primary beneficiary in any of these VIEs. A VIE for which the Company is determined to be the primary beneficiary is required to be consolidated in its financial statements.
	The formation agreements for each of the two commercial pools are similar and state that the board of each pool has decision making power over their significant decisions. In addition, all such decisions must be approved unanimously by the respective boards. Since the Company shares power to make all significant economic decisions that affect these pools and does not control a majority of either of the boards, the Company is not considered a primary beneficiary of either of the pools.
	The FSO joint venture described in Note 8, “Equity Method Investments,” was determined to be a VIE. The formation agreements of the joint venture state that all significant decisions must be approved by the majority of the board. As a result, the Company shares power to make all significant economic decisions that affect this joint venture and does not control a majority of the board and is not considered a primary beneficiary. Accordingly, the Company accounts for this investment under the equity method of accounting.
	The joint venture’s formation agreements require the Company and its joint venture partner to provide financial support as needed. The Company has provided and will continue to provide such support as described in Note 8, “Equity Method Investments.”
	The following table presents the carrying amounts of assets and liabilities in the balance sheet related to the VIEs described above as of December 31, 2013 and 2012:
	Consolidated Balance Sheet	December 31, 2013		December 31, 2012
	Investments in Affiliated Companies	$	275,261	$	244,258
	Other Liabilities(1)		-	$	29
	(1)Represents the Company’s valuation of its several guarantee of the FSO joint venture’s debt at December 31, 2013 and 2012.
	In accordance with accounting guidance, the Company evaluated its maximum exposure to loss related to these VIEs by assuming a complete loss of the Company’s investment in and advances to these VIEs and that it would incur an obligation to repay the full amount of the VIE’s outstanding secured debt (FSO joint venture). The table below compares the Company’s liability in the consolidated balance sheet to the maximum exposure to loss at December 31, 2013.
		Consolidated Balance Sheet		Maximum Exposure to Loss
	Other Liabilities	$	-	$	373,500
	In addition, as of December 31, 2013, the Company had approximately $28,746 of trade receivables from pools that were determined to be VIEs. These trade receivables, which are included in voyage receivables in the accompanying consolidated balance sheet, have been excluded from the above tables and the calculation of OSG’s maximum exposure to loss. The Company does not record the maximum exposure to loss as a liability because it does not believe that such a loss is probable of occurring as of December 31, 2013. Further, the joint venture debt is secured by the joint venture’s FSOs. Therefore, the Company’s exposure to loss under its several guarantee would first be reduced by the fair value of such FSOs.

GOODWILL_AND_INTANGIBLE_ASSETS

GOODWILL AND INTANGIBLE ASSETS	12 Months Ended
	Dec. 31, 2013
Goodwill and Intangible Assets Disclosure [Abstract]	'
Goodwill and Intangible Assets Disclosure [Text Block]	'
	NOTE 10 — GOODWILL AND INTANGIBLE ASSETS
	Goodwill
	Goodwill activity for the years ended December 31, 2013 and 2012 is summarized as follows:
		International
		Crude Tankers
		Segment and
		Total Goodwill
	Balance at January 1 and December 31, 2012	$	9,589
	Accumulated impairment losses		-9,589
	Balance at December 31, 2013	$	-
	As discussed in Note 4, “Summary of Significant Accounting Matters,” the Company tests the goodwill in its reporting units for impairment at least annually, or more frequently if impairment indicators arise, by comparing the estimated fair value of each operating segment with its net book value. The Company performed its annual goodwill impairment testing as of April 1, 2013 and concluded that the goodwill was not impaired.
	On January 13, 2014, OSG announced that certain subsidiaries of OSG that own or charter-in 33 vessels in OSG’s International Flag fleet (the “Core International Flag Fleet”) intend to outsource certain management services, including, but not limited to, the technical management, certain aspects of commercial management and crew management of the Core International Flag Fleet to V.Ships UK Limited (“V.Ships”).  As part of this decision, the Company also declared its intent to (i) use participation in independently managed pools as the principal commercial strategy for all its International Flag vessels, and (ii) exit from the full service International Crude Tankers Lightering business once its current Lightering contracts expire in September 2014. The Company’s management determined in December 2013, that these were the necessary steps the Company had to take in order to position the international business to emerge successfully from Chapter 11 with a smaller, more-concentrated fleet without the need for costly systems, multiple offices and the associated expense.   A combination of the factors above was considered to be a triggering event for an interim impairment testing of long-lived assets and goodwill associated with the International Crude Tankers Lightering business acquired in 2007 as of December 31, 2013.  The Company reduced its estimates of future cash flows from this business to measure fair value to reflect the considerations noted above. The Company recorded a goodwill impairment charge of $9,589 in the quarter ended December 31, 2013.
	Intangible Assets
	Intangible assets activity for the three years ended December 31, 2013 is summarized as follows:
		International
		Crude
		Tankers		U.S.
		Segment		Segment		Other		Total
	Balance at January 1, 2011	$	8,921	$	73,944	$	272	$	83,137
	Amortization		-500		-4,667		-16		-5,183
	Disposal		-796		-		-		-796
	Balance at December 31, 2011		7,625		69,277		256		77,158
	Amortization		-500		-4,667		-16		-5,183
	Balance at December 31, 2012		7,125		64,610		240		71,975
	Amortization		-500		-4,667		-16		-5,183
	Impairment loss		-6,625		-		-		-6,625
	Balance at December 31, 2013	$	-	$	59,943	$	224	$	60,167
	The gross intangible assets were $93,331 and $103,331 at December 31, 2013 and 2012, respectively. Accumulated amortization was $33,164 and $31,356 at December 31, 2013 and 2012, respectively. Amortization of intangible assets for the five years subsequent to December 31, 2013 is expected to approximate $4,683 per year.
	As discussed in Note 4, “Summary of Significant Accounting Policies,” the Company’s intangible assets consist primarily of long-term customer relationships acquired as part of the 2006 purchase of Maritrans, Inc. and the 2007 purchase of the Heidmar Lightering business. The Company’s re-organization planning discussed above was determined to be an impairment triggering event under the ASC 360, Property, Plant, and Equipment, held-for-use model for the long-lived asset group relating to the Company’s full service International Crude Tankers Lightering business.  The full service International Crude Tankers Lightering business assets were tested as a group because the cash flows relating to this business are largely independent of the cash flows of other groups of assets and liabilities.  The assets of the full service International Crude Tankers Lightering business include the customer relationship intangible assets, an Aframax vessel (the Overseas Eliane) and transportation equipment used to service the customers in the full service Lightering business. As such, the carrying values and cash flows that were included in the impairment test are solely the assets and cash flows related to the full service Lightering business. Based on the estimated cash flows used to measure the fair value of the asset group, the Company recorded an impairment charge of $6,625 representing the full value of the customer relationships intangible assets related to the full service International Crude Tankers Lightering business in the fourth quarter ended December 31, 2013. Refer to Note 7, “Vessels, Deferred Drydock and Other Property,” for a discussion on the impairment charges allocated to the transportation equipment used in this business.

DEBT

DEBT	12 Months Ended
	Dec. 31, 2013
Debt Disclosure [Abstract]	'
Debt Disclosure [Text Block]	'
	NOTE 11—DEBT:
	Debt, which is a component of Liabilities Subject to Compromise” on the consolidated balance sheets, consists of the following:
		As of  December 31,
	Debt Classified as Liabilities Subject to Compromise	2013		2012
	Unsecured revolving credit facility	$	1,489,000	$	1,489,000
	8.125% notes due 2018, net of unamortized discount of $2,898 and $2,898		297,102		297,102
	7.50% notes due 2024		146,000		146,000
	8.75% debentures due 2013, net of unamortized discount of $11 and $11		63,592		63,592
	Floating rate secured term loans, due through 2023		565,956		578,687
		$	2,561,650	$	2,574,381
	The withdrawal of reliance on the audited financial statements for the three years ended December 31, 2011 and for the quarters ended March 31, 2012 and June 30, 2012 coupled with the Company’s failure to file the quarterly report on Form 10-Q for the quarter ended September 30, 2012 and the filing of the Chapter 11 Cases, resulted in an event of default or otherwise triggered repayment obligations under the Company’s Unsecured Revolving Credit Facility, Unsecured Senior Notes due in 2013, 2018 and 2024, Unsecured Forward Start Revolving Credit Agreement and Secured Loan Facilities maturing in 2020 and 2023 (each term as defined below). Also, as a result of the commencement of the Chapter 11 Cases, the outstanding balances under the Unsecured Revolving Credit Facility, the Unsecured Senior Notes and Secured Loan Facilities and related accrued interest and unamortized deferred financing costs have been classified as Liabilities Subject to Compromise in the consolidated balance sheets as of December 31, 2013 and 2012, in accordance with ASC 852, Debt included in Liabilities Subject to Compromise will be paid in accordance with the ultimate claims resolution in the Bankruptcy Cases.
	Unsecured Revolving Credit Facilityand Unsecured Senior Notes
	In 2006, the Company entered into a $1,800,000 seven-year unsecured revolving credit agreement with a group of banks, which was scheduled to mature on February 8, 2013 (the “Unsecured Revolving Credit Facility”). In accordance with the terms of the credit agreement, the maximum amount the Company could borrow under the Unsecured Revolving Credit Facility decreased to $1,500,000 in February 2012. Borrowings under this facility bore interest at a rate based on LIBOR.
	The Company had the following separate series of unsecured notes or debentures issued and outstanding at December 31, 2013 (collectively, the “Unsecured Senior Notes”):
	8.75% Debentures (the “2013 Debentures”) – These notes were issued on December 1, 1993 and consist of $63,603 in face value debenture notes which matured on December 1, 2013.
	8.125% Senior Notes (the “8.125% Notes”) – These notes were issued on March 29, 2010 and consist of $300,000 in face value notes, which are due on March 30, 2018.
	7.5% Senior Notes (the “7.5% Notes”) – These notes were issued on March 7, 2003 and consist of $146,000 in face value notes, which are due on February 15, 2024.
	Pursuant to the applicable bankruptcy law, the Company does not expect to make any principal payments on the Unsecured Revolving Credit Facility and the Unsecured Senior Notes due in 2013, 2018 and 2024, during the pendency of the Chapter 11 Cases. Also, as interest on the Company’s unsecured debt subsequent to the Petition Date was not expected to be an allowed claim, the Company ceased accruing interest on the Unsecured Credit Facility and the Unsecured Senior Notes on November 14, 2012.
	For the year ended December 31, 2013 and for the period from November 14, 2012 to December 31, 2012, interest expense of $14,433 and $2,091, including $237 and $185, respectively, relating to the amortization of deferred financing costs, which would have been incurred had the Unsecured Revolving Credit Facility not been reclassified as a Liability subject to compromise, was not recorded.
	As of December 31, 2013, the Company has determined that it is more likely than not that the Unsecured Revolving Credit Facility will not exist in the post emergence period as a result of extinguishment, satisfaction or an exchange of debt for equity during the re-organization process. The Company has therefore recorded a charge to Reorganization items, net in the accompanying consolidated statement of operations for the year ended December 31, 2013, relating to the write off of the Unsecured Revolving Credit Facility unamortized deferred finance charges of  $422.
	For the year ended  December 31, 2013 and for the period from November 14, 2012 to December 31, 2012, interest expense of $42,355 and $5,529, including $1,463 and $190, respectively, relating to the amortization of debt discount and deferred financing costs, which would have been incurred had the Unsecured Senior Notes not been reclassified as Liabilities Subject to Compromise, was not recorded.
	Unsecured Forward Start Revolving Credit Agreement
	The Company had taken steps to replace the borrowing capacity under the Unsecured Revolving Credit Facility by entering into a $900,000 unsecured forward start revolving credit agreement on May 26, 2011, with a bank lending group that was due to mature on December 31, 2016. Under the terms of the agreement, OSG would have been able to draw on the forward start facility beginning on February 8, 2013, the date on which OSG’s Unsecured Revolving Credit Facility would have expired. Financial covenants under the unsecured forward start revolving credit agreement, which were more restrictive than those contained in the $1,800,000 unsecured credit facility (due principally to differences in definitions between the two agreements), would have first become applicable on December 31, 2012. The commitments under the unsecured forward start revolving credit agreement were terminated during the fourth quarter of 2012. In connection with this termination, approximately $12,540 of deferred financing costs associated with this facility was written off at the Petition Date.
	Secured Loan Facilities
	Term loans maturing in 2016 – On January 18, 2012, the Company prepaid the outstanding principal balance of $49,000 associated with term loans maturing in 2016 with borrowings from its Unsecured Revolving Credit Facility. The two vessels that were pledged as collateral under these term loans are no longer encumbered.
	As of December 31, 2013, 15 vessels, representing approximately 24% of the net book value of the Company’s vessels, are pledged as collateral under the following debt agreements:
	Term loans maturing in 2020 – This facility with  DSF, with an outstanding balance of  $263,371 and $266,936 at December 31, 2013 and 2012,  respectively, provides secured term loans originally covering seven MR Product Carriers, one Aframax and one VLCC. The facility provides that the market values of the vessels pledged as collateral be compared with the outstanding loan balance semi-annually. In December 2011, the facility was amended to, among other things, reduce the minimum required loan-to-value ratio from 110% to 100% through January 2013. In connection with the exchange of the MR Product Carriers previously servicing the U.S. Maritime Security Program, the Company reflagged two of the seven MR Product Carriers originally pledged as collateral under the above term loans. Accordingly, in June 2012, the lenders under this facility agreed to accept replacing the two MR Product Carriers with two Panamax Product Carriers. The Company believes that the value of the collateral securing these loans as of the Petition Date was less than the outstanding balance of such loans and has therefore classified these secured term loans and related accrued interest and unamortized deferred financing costs as Liabilities Subject to Compromise in the consolidated balance sheets at December 31, 2013 and 2012. As of December 31, 2013 and 2012, the loan-to-value ratio was estimated to approximate 97% and 84%, respectively. For the year ended December 31, 2013 and for the period from November 14, 2012 to December 31, 2012, interest expense of $3,482 and $480, including $263 and $34, respectively, relating to the amortization of deferred financing costs, which would have been incurred had the indebtedness not been reclassified as a Liability Subject to Compromise, was not recorded.
	Term loans maturing in 2023 – This facility with CEXIM, with an outstanding balance of $302,585 and $311,751 as of December 31, 2013 and 2012,  respectively, financed the construction of three VLCCs and two Aframaxes in China, the last of which delivered in January 2012. In December 2011, the Company entered into an amendment of the loan agreement which, among other things, reduced the total borrowing capacity of the facility by approximately $28,000 and reduced the minimum required loan-to-value ratio from 125% to 105% through January 2013. The Company believes that the value of the collateral securing these loans as of the Petition Date was less than the outstanding balance of such loans and has therefore classified these secured term loans and related accrued interest and unamortized deferred financing costs as Liabilities Subject to Compromise in the consolidated balance sheets at December 31, 2013 and 2012. As of December 31, 2013 and 2012, the loan-to-value ratio was estimated to approximate 91% and 86%, respectively. For the year ended December 31, 2013 and for the period from November 14, 2012 to December 31, 2012, interest expense of $9,011 and $1,295, including $284 and $36, respectively, relating to the amortization of deferred financing costs which would have been incurred had the indebtedness not been reclassified as a Liability Subject to Compromise, was not recorded.
	The Company has determined that it is more likely than not that the Secured Term Loan facilities will not exist in the post emergence period because it has been unable to reach agreements with either CEXIM or DSF, despite extensive negotiations, on mutually agreeable terms.. The Company has therefore recorded charges to Reorganization items, net in the accompanying consolidated statement of operations for the year ended December 31, 2013 relating to the write-off of the CEXIM and DSF unamortized deferred finance costs of $2,955 and $1,226, respectively.
	On February 5, 2013, the Bankruptcy Court issued orders [D.I. 0459 and 0460] granting adequate protection to the secured lenders in consideration for (i) the granting of pari passu liens in the secured lenders’ collateral in connection with the Debtor in Possession loan facilities (the “OIN DIP loans”) issued by OSG International, Inc. (“OIN”), a wholly owned subsidiary of the Company, (ii) the imposition of the automatic stay, (iii) the Company’s use, sale or lease of vessels and other collateral encumbered by the security interest of the secured lenders, and (iv) with respect to CEXIM, the Company’s continued use of cash collateral for the ongoing operation and maintenance of the vessels securing the CEXIM term loan agreement. Pursuant to these orders, the Company and certain of its subsidiaries are authorized to make use of the funds generated from the ongoing operation of the encumbered vessels in the following order of priority (i) to reimburse its ship management subsidiaries and other affiliates for voyage expenses, vessel operating expenses, capital expenditures and drydocking expenses incurred on behalf of the encumbered vessels (ii) to fund a reserve for future drydocking expenses, (iii) to reimburse the secured lenders for certain legal costs, (iv) to pay the secured lenders amounts equal to current interest payments due on the outstanding pre-petition loan balances at the non-default contract rate of interest set forth in the term loan agreements (the “Adequate Protection Interest Payments” and together with amounts described in (iii), the “Adequate Protection Payments”) and (v) to pay any interest outstanding under the OIN DIP Loans. The Debtors and certain other parties in interest preserve the right to challenge the amount, extent, type or characterization of any Adequate Protection Payments or any other costs, fees or expenses, including the right to seek recharacterization of any such payments as payments on the prepetition principal amounts outstanding under the term loan agreements.
	In accordance with ASC 852, no interest is accrued and/or paid on secured debt when the fair value of the underlying collateral is below the outstanding principal of the secured debt. Accordingly, the Adequate Protection Interest Payments have been classified as reductions of outstanding principal.
	For the year ended December 31, 2013, the Company paid Adequate Protection Interest Payments, which were classified as reductions of the outstanding principal of the DSF and CEXIM term loans, of  $3,565 and $9,166, respectively.
	OIN Debtor in Possession Loan Facilities
	Pursuant to the order issued by the Bankruptcy Court on February 5, 2013, OIN was given approval to enter into Debtor in Possession Loan Agreements with the Company’s subsidiaries that own and operate the vessels securing the term loans described above. Under the terms of the order, OIN is allowed to lend up to $10,000 to the Company’s subsidiaries operating the vessels securing the term loans maturing in 2020 and $15,000 to the Company’s subsidiaries operating the vessels securing the term loans maturing in 2023. The sole purpose of the OIN DIP Loans is to fund any shortfall in the funds available to cover ongoing operations, capital expenditures, drydock repairs and drydock reserves of the secured vessels and the Adequate Protection Payments due to the lenders as described above. The balances of the DIP Loans as of December 31, 2013 were: $3,217 (CEXIM loan) and $760 (DSF loan).
	Outstanding Letters of Credit
	The Company has a $9,146 of letter of credit outstanding as of December 31, 2013. This letter of credit, which was issued in connection with certain arbitration proceedings the Company is involved in, is fully cash collateralized. Such cash collateral is considered restricted cash and is included in other assets in the consolidated balance sheets.
	Interest paid, excluding capitalized interest, amounted to $0 in 2013, $88,849 in 2012 and $84,054 in 2011.

FAIR_VALUE_OF_FINANCIAL_INSTRU

FAIR VALUE OF FINANCIAL INSTRUMENTS, DERIVATIVES AND FAIR VALUE DISCLOSURES	12 Months Ended
	Dec. 31, 2013
Fair Value Disclosures [Abstract]	'
Fair Value Disclosures [Text Block]	'
	NOTE 12 — FAIR VALUE OF FINANCIAL INSTRUMENTS, DERIVATIVES AND FAIR VALUE DISCLOSURES:
	The following methods and assumptions were used to estimate the fair value of each class of financial instrument.
	Cash and cash equivalents—The carrying amounts reported in the consolidated balance sheet for interest-bearing deposits approximate their fair value.
	Debt—At December 31, 2013 and 2012, all of the Company’s debt is subject to compromise (see Note 11, “Debt”) as a result of the Company’s filing of the Chapter 11 Cases. For publicly-traded debt, estimates of fair value are based on quoted market prices.
	Forward freight agreements and bunker swaps—The fair values of forward freight agreements and bunker swaps are the estimated amounts that the Company would receive or pay to terminate the agreements at the reporting date, which include an adjustment for the counterparty or the Company’s credit risk, as appropriate, after taking into consideration any underlying collateral securing the agreements.
	Interest rate swaps—The fair values of interest rate swaps are the estimated amounts that the Company would receive or pay to terminate the swaps at the reporting date, which include adjustments for the counterparty or the Company’s credit risk, as appropriate, after taking into consideration any underlying collateral securing the swap agreements.
	Foreign Currency Contracts—The fair values of foreign currency contracts are the estimated amounts that the Company would receive or pay to terminate the contracts at the reporting date, which include adjustments for the counterparty or the Company’s credit risk, as appropriate, after taking into consideration any underlying collateral securing the swap agreements.
	The estimated fair values of the Company’s financial instruments, other than derivatives and marketable securities that are not measured at fair value on a recurring basis, categorized based upon the fair value hierarchy, at December 31, 2013 and 2012, are as follows:
						Level 1:
						Quoted prices in
						active markets for			Level 2:
						identical assets			Significant other
			Fair Value			or liabilities			observable inputs
	December 31, 2013:
	Cash and cash equivalents		$	601,927		$	601,927		$	-
	Unsecured Senior Notes		$	-559,441		$	-		$	-559,441
	December 31, 2012:
	Cash and cash equivalents		$	507,342		$	507,342		$	-
	Unsecured Senior Notes		$	-181,504		$	-		$	-181,504
	The Company’s debt is included in Liabilities Subject to Compromise as of December 31, 2013 and 2012. Having filed the Chapter 11 Cases, the Company would not have been able to enter into credit facilities similar to its Unsecured Revolving Credit Facility and the floating rate Secured Term Loans. It is impractical to therefore obtain fair value estimates for such floating rate debt as of December 31, 2013 and 2012 and such debt is excluded from the above table. The fair values of the Unsecured Senior Notes were derived from quoted market prices, but because the Unsecured Senior Notes are thinly traded the fair value estimates are considered to be Level 2 of the fair value hierarchy.
	Derivatives
	The Company is exposed to certain risks relating to its ongoing business operations. The risks, managed by using derivative instruments, are volatility with respect to spot (voyage) charter rates, fuel prices, interest rates and foreign currency exchange rates.
	Spot Market Rate Volatility Risk
	The Company enters into Forward Freight Agreements (“FFAs”) and bunker swaps with an objective to utilize them as (i) economic hedging instruments some of which qualify as cash flow hedges for accounting purposes that reduce its exposure to changes in TCE revenue earned by some of its vessels operating in the spot market; and (ii) from time to time for trading purposes to take advantage of short term fluctuations in the market. The FFAs and bunker swaps involve contracts to provide affixed number of theoretical voyages at fixed rates, which generally range from one month to one year and settle monthly based on a published index. There were no contracts outstanding as of December 31, 2013 and 2012.
	Fuel Price Volatility Risk
	The Company entered into standalone bunker swaps to protect the Company against future increases in fuel prices in the normal course of its International Crude Tankers Lightering business, which includes a number of fixed rate Contracts of Affreightment. These swap contracts, which do not qualify as cash flow hedges for accounting purposes, settle on a net basis at the end of each calendar month, based on the average daily closing prices, as quoted by the Baltic Exchange, of the commodity during each month. The Company closed its trading account and settled all open positions prior to the Petition Date. Accordingly, there were no bunker swap agreements outstanding as of December 31, 2013 and 2012.
	Interest Rate Risk
	The Company uses interest rate swaps for the management of interest rate risk exposure. The interest rate swaps effectively converted a portion of the Company’s debt from a floating to a fixed rate and were designated and qualified as cash flow hedges. At the Petition Date, the Company was a party to seven floating-to-fixed interest rate swaps with various major financial institutions covering notional amounts aggregating approximately $219,940, pursuant to which it paid fixed rates ranging from 3.3% to 4.7% and received floating rates based on LIBOR. These agreements contained no leverage features and had various final maturity dates ranging from December 2012 to August 2014. Two of the floating-to-fixed interest rate swap agreements with an aggregate notional value of $30,000 that were scheduled to mature in December 2012 were de-designated in September 2012. The related balances in accumulated other comprehensive loss aggregating $331 were reclassified into earnings during the quarter ended September 30, 2012.
	The filing of the Chapter 11 Cases (see Note 2, “Bankruptcy Filing and Going Concern”) constituted an event of default or termination under the seven interest rate swap agreements to which the Company was a party as of the Petition Date. Accordingly, on November 14, 2012, outstanding interest rate swap obligations (including accrued interest) totaling $ 3,566 were reclassified to Liabilities Subject to Compromise on the consolidated balance sheet and the Company de-designated all of its interest rate swaps, other than those entered into by the joint ventures in which it participates, from hedge accounting. The related balances in accumulated other comprehensive loss aggregating $1,866 were reclassified into earnings as of the Petition Date. The outstanding interest rate swap obligations as of the Petition Date represent general unsecured claims against the Company.
	Foreign Exchange Risk
	The Company seeks to reduce its exposure to fluctuations in foreign exchange rates related to recurring monthly foreign currency denominated general and administrative expenses through the use of foreign currency forward contracts and through the purchase of bulk quantities of currencies at rates which management considers favorable. At December 31, 2013 and 2012, there were no foreign currency forward contracts outstanding.
	Tabular disclosure of derivatives location
	As noted above, as a result of the Chapter 11 Cases, all derivative obligations outstanding as of the Petition Date were reclassified to Liabilities Subject to Compromise as they represent general unsecured claims against the Company. The following tables present information with respect to gains and losses on derivative positions reflected in the statement of operations or in the statement of other comprehensive loss.
	The effect of cash flow hedging relationships recognized in other comprehensive income/(loss) (effective portion), including hedges of equity method investees, for the years ended December 31, 2013, 2012 and 2011 follows:
	For the year ended December 31,		2013			2012			2011
	Interest rate swaps		$	19,114		$	-20,709		$	-65,317
	Total		$	19,114		$	-20,709		$	-65,317
	The effect of cash flow hedging relationships on the statement of operations, excluding hedges of equity method investees, for the years ended December 31, 2012 and 2011 is shown below:
			Statement of Operations
			Effective Portion of Gain/(Loss)
			Reclassified from
			Accumulated Other Comprehensive
			Loss					Ineffective Portion
	For the year ended				Amount of					Amount of
	31-Dec-12		Location		Gain/(Loss)			Location		Gain/(Loss)
	Interest rate swaps		Interest expense		$	-7,697		Interest expense		$	-
	Total				$	-7,697				$	-
			Statement of Operations
			Effective Portion of Gain/(Loss)
			Reclassified from
			Accumulated Other Comprehensive
			Loss					Ineffective Portion
	For the year ended				Amount of					Amount of
	31-Dec-11		Location		Gain/(Loss)			Location		Gain/(Loss)
	Interest rate swaps		Interest expense		$	-10,676		Interest expense		$	-
	Foreign currency contracts		General and administrative expenses			602		General and administrative expenses			-
	Total				$	-10,074				$	-
	The effect of the gain/(loss) recognized on derivatives not designated as hedging instruments on the statements of operations, excluding hedges of equity method investees, for the years ended December 31, 2013, 2012 and  2011 are as follows:
	For the year ended		Location		December 31,			December 31,			December 31,
					2013			2012			2011
	FFAs and bunker swaps		Other income/(expense)		$	-		$	1,376		$	840
	Foreign currency contracts		General and administrative expenses			-			-			-57
					$	-		$	1,376		$	783
See Note 8, “Equity Method Investments,” for additional information relating to derivatives held by the Company’s equity method investees and Note 16, “Accumulated Other Comprehensive Loss,” for disclosures relating to the impact of derivative instruments on accumulated other comprehensive loss.
Fair Value Hierarchy
The following tables present the fair values, which are pre-tax, for assets and liabilities measured on a recurring basis (excluding investments in affiliated companies):
					Level 1:
					Quoted prices in active
					markets for identical
In thousands		Fair Value			assets or liabilities
Assets/(Liabilities) at December 31, 2012:
Available-for-sale marketable securities		$	181		$	181	-1
(1)Included in prepaid expenses and other current assets in the accompanying balance sheet
The following table summarizes the fair values of items measured at fair value on a nonrecurring basis for the years ended December 31, 2013 and 2012:
						Level 2:
						Significant			Level 3:
						Other			Significant			Total
						Observable			Unobservable			Impairment
Description			Fair Value			Inputs			Inputs			Charges
Assets for the year ended December 31, 2013:
International Crude Tankers impairment
Vessels held for use(1)		$	359,252		$	359,252		$	-		$	-327,675
Other fixed assets held for use(2)		$	750			-		$	750			-462
Intangible assets (2)		$	-		$	-		$	-		$	-6,625
Goodwill(3)		$	-		$	-		$	-		$	-9,589
International Product Carriers impairment
Vessels held for use(1)		$	67,947		$	67,947		$	-		$	-38,301
Assets for the year ended December 31, 2012:
International Crude Tankers impairment
Vessels held for use(4)		$	106,400		$	106,400			-		$	-101,589
International Product Carriers impairment
Vessels held for use(4)		$	139,000		$	139,000			-		$	-176,756
	-1	Aggregate pre-tax impairment charges of $365,976 were recorded in the fourth quarter of 2013, related to 15 vessels held for use in the International Crude Tanker and International Product Carriers segments. The fair value measurement used to determine the impairment for the vessels held for use was based upon a market approach, which utilized the expected sales prices of the vessels obtained from third party appraisals. Because sales of vessels occur somewhat infrequently, the expected sales prices are considered to be Level 2.
	-2	Aggregate pre-tax impairment charges of $7,087 were recorded in the fourth quarter of 2013, including $6,625 related to customer relationship intangible assets and $462 related to transportation equipment held for use in the International Crude Tanker’s Lightering business. The fair value measurement used to determine the impairment for the intangible assets and equipment held for use was based upon the income approach, which utilized cash flow projections consistent with the most recent projections of the Company, and a discount rate equivalent to a market participant's weighted average cost of capital. Because the Company uses its own cash flow projections, the cash flow projections are considered to be Level 3.
	-3	Aggregate pre-tax impairment charges of $9,589 were recorded in the fourth quarter of 2013, related to goodwill of the International Crude Tanker’s Lightering business. The fair value measurement used to determine the impairment for goodwill was based upon the income approach, which utilized cash flow projections consistent with the most recent projections of the Company, and a discount rate equivalent to a market participant's weighted average cost of capital. Because the Company uses its own cash flow projections, the cash flow projections are considered to be Level 3.
	-4	Aggregate pre-tax impairment charges of $278,345 were recorded in the fourth quarter of 2012 related to 15 vessels held for use in the International Crude Tanker and International Product Carriers segments. The fair value measurement used to determine the impairment for the vessels held for use was based upon a market approach, which utilized the expected sales prices of the vessels obtained from third party appraisals. Because sales of vessels occur somewhat infrequently, the expected sales prices are considered to be Level 2.

ACCOUNTS_PAYABLE_ACCRUED_EXPEN

ACCOUNTS PAYABLE, ACCRUED EXPENSES AND OTHER CURRENT LIABILITIES	12 Months Ended
	Dec. 31, 2013
Accounts Payable and Accrued Liabilities, Current [Abstract]	'
Accounts Payable, Accrued Liabilities, and Other Liabilities Disclosure, Current [Text Block]	'
	NOTE 13 — ACCOUNTS PAYABLE, ACCRUED EXPENSES AND OTHER CURRENT LIABILITIES:
	Accounts payable, accrued expenses and other current liabilities follows:
	At December 31,	2013		2012
	Accounts payable	$	22,002	$	16,545
	Payroll and benefits		30,589		12,704
	Due to owners on chartered in vessels		3,452		4,753
	Accrued drydock and repair costs		4,335		3,823
	Bunkers and lubricants		7,907		14,201
	Charter revenues received in advance		18,682		10,778
	Insurance		573		1,009
	Accrued vessel expenses		7,529		11,268
	Other		26,513		24,192
		$	121,582	$	99,273

TAXES

TAXES	12 Months Ended
	Dec. 31, 2013
Income Tax Disclosure [Abstract]	'
Income Tax Disclosure [Text Block]	'
	NOTE 14 —TAXES:
	Income of foreign shipping companies earned from January 1, 1976 through December 31, 1986 was excluded from U.S. income taxation to the extent that such income was reinvested in foreign shipping operations. Foreign shipping income earned before 1976 is not subject to tax unless distributed to the U.S. A determination of the amount of qualified investments in foreign shipping operations, as defined, is made at the end of each year and such amount is compared with the corresponding amount at December 31, 1986. If, during any determination period, there is a reduction of qualified investments in foreign shipping operations, earnings of the foreign shipping companies, limited to the amount of such reduction and to the amount of earnings not previously subject to U.S. income taxation, would become subject to tax. From January 1, 1987 through December 31, 2004, earnings of foreign shipping companies (exclusive of foreign joint ventures in which the Company has a less than 50% interest) were subject to U.S. income taxation in the year earned and could therefore be distributed to the U.S. without further tax. For years beginning after December 31, 2004, the earnings from shipping operations of the Company’s foreign subsidiaries are not subject to U.S. income taxation as long as such earnings are not deemed repatriated to the U.S.
	For the years ended December 31, 2013 and 2012, the cumulative amount borrowed under credit agreements for which OIN was a co-obligor with the Company on a joint and several basis was $1,489,000.  The Company could be deemed to have received in the aggregate deemed dividends and other foreign income from its foreign subsidiaries or less than 50% owned foreign shipping joint ventures for the years ended December 31, 2013 and 2012 of (1) $1,330,000 and $1,194,150  in connection with the Credit Facilities and (2) $107,000 and $77,000, respectively, related to intercompany balances.  The year in which such deemed dividends are included in taxable income is subject to an IRS examination.
	For the quarter ended September 30, 2012 and periods prior thereto the Company had asserted that it is permanently reinvested on all foreign earnings except for the amount equal to the debt on which OIN is a co-obligor on a joint and several basis for which it cannot, by definition, be permanently reinvested. The Company has determined that because it is in bankruptcy as of December 31, 2013, and its actions are subject to Bankruptcy Court approval, it can no longer make the assertion that it has both the ability and intent to permanently reinvest the remaining undistributed, previously untaxed, earnings of its foreign subsidiaries indefinitely outside the U.S. The Company has analyzed the book and tax basis differences for its foreign assets and analyzed how foreign earnings would likely be repatriated. Such repatriation would be dependent on the sale of foreign assets, which based on current fair values would significantly erode accumulated earnings by an amount that would exceed previously untaxed earnings.  As a result, no incremental tax expense was recorded in the years ended December 31, 2013 and 2012.
	The significant components of the Company’s deferred tax liabilities and assets follow:
	As of December 31,	2013			2012
	Deferred tax liabilities:
	Excess of book over tax basis of depreciable or amortizable assets—net	$	290,620		$	301,378
	Unremitted earnings of foreign subsidiaries		55,602			103,388
	Costs capitalized and amortized for book, expensed for tax		12,010			13,058
	Interest expense		35,368			4,329
	Other—net		9,966			7,327
	Total deferred tax liabilities		403,566			429,480
	Deferred tax assets:
	Net operating loss carryforward		12,580			10,659
	Employee compensation and benefit plans		32,403			31,902
	Other—net		7,570			26,121
	Total deferred tax assets		52,553			68,682
	Valuation allowance		13,477			8,264
	Net deferred tax assets		39,076			60,418
	Net deferred tax liabilities	$	364,490		$	369,062
	These amounts are classified in the balance sheet as follows:
	Current deferred tax (assets)	$	-5,464		$	-
	Current deferred tax liabilities		-			25,900
	Noncurrent deferred tax liabilities		369,954			343,162
	Net deferred tax liabilities	$	364,490		$	369,062
	As of December 31, 2013 and December 31, 2012, the Company had gross U.S. state net operating loss carryforwards of $130,021 and $96,358, respectively, which are available to reduce future taxes, if any. These state net operating loss carryforwards expire between 2014 and 2032. As of December 31, 2013 and December 31, 2012, the Company had gross net operating loss carryforwards related to the international operations of $26,089 and $26,129, respectively, which are available to reduce future taxes, if any. These net operating loss carryforwards have an indefinite life. The Company also has gross net operating loss carryforwards related to its Barbados operations of $16,013 and $13,118, respectively, which are available to reduce future taxes, if any, and expire between 2018 and 2022.
	The Company believes that it is more likely than not that the benefit from certain state and foreign NOL carryforwards will not be realized and have provided a valuation allowance of $13,477 and $8,264 as of December 31, 2013 and 2012, respectively, on the deferred tax assets relating to these state and foreign NOL carryforwards. If or when recognized, the tax benefits related to any reversal of the valuation allowance on deferred tax assets as of December 31, 2013, will be accounted for as a reduction of income tax expense in the period such reversal occurs.  The Company has established a valuation allowance for a portion of its deferred tax assets because it believes, based on the weight of all available evidence, that it is more likely than not that a portion of its net operating loss carryforwards may expire prior to utilization. The valuation allowance at December 31, 2011 was $6,629. The valuation allowance increased/(decreased) by $5,213, $1,635 and $(313) in 2013, 2012 and 2011, respectively.
	The components of loss before income taxes follow:
	For the year ended December 31,	2013			2012			2011
	Foreign	$	-662,480		$	-484,306		$	-129,051
	Domestic	$	9,505		$	2,711		$	-70,326
		$	-652,975		$	-481,595		$	-199,377
	Substantially all of the above foreign losses resulted from the operations of companies that were not subject to income taxes in their countries of incorporation.
	The components of the income tax (provisions)/benefits follow:
	For the year ended December 31,	2013			2012			2011
	Current	$	7,347		$	-28,270		$	-31,622
	Deferred		7,398			29,751			29,636
		$	14,745		$	1,481		$	-1,986
	For the years ended December 31, 2013, 2012 and 2011, the Company paid $60,687, $293 and $264, respectively, of income taxes of which $58,747, related to U.S. Federal income taxes in 2013.
	Reconciliations of the actual income tax rate attributable to pretax results and the U.S. statutory income tax rate follow:
	For the year ended December 31,	2013			2012				2011
	Actual income tax rate		2.3	%		0.3	%		-1	%
	Adjustments due to:
	Income not subject to U.S. income taxes		36.2	%		31.3	%		25.2	%
	State taxes, net of federal benefit		-0.5	%		1.8	%		0	%
	Interest on unrecognized tax benefits		-4.9	%		1.1	%		9.1	%
	Nondeductible reorganization costs		1.4	%		0.4	%		0	%
	Foreign income and repatriations taxed in the U.S.		1.6	%		-1.7	%		-0.7	%
	Change in tax status of subsidiary		-0.9	%		0.1	%		0	%
	Other		-0.2	%		1.7	%		2.4	%
	U.S. statutory income tax rate		35	%		35	%		35	%
	Effective January 1, 2013, the Overseas Maremar, an International Flag Product Carrier that is still owned by a U.S. domiciled corporation, exited the tonnage tax regime. As a result, the Company recorded the deferred taxes associated with the change in tax status during 2013.
	The following is a roll-forward of the Company’s unrecognized tax benefits (excluding interest and penalties) for 2013 and 2012:
		2013			2012
	Balance of unrecognized tax benefits as of January 1,	$	374,826		$	361,829
	Increases for positions taken in prior years		59			482
	Decreases for positions taken in prior years		-14,240			-
	Increases for positions related to the current year		31,838			13,514
	Amounts of decreases related to settlements		-			-384
	Reductions due to lapse of statutes of limitations		-653			-615
	Balance of unrecognized tax benefits as of December 31,	$	391,830		$	374,826
	Included in the balances of unrecognized tax benefits as of December 31, 2013 and 2012 are $28,527 and $13,361, respectively, of tax benefits that, if recognized, would affect the effective tax rate.  Also included in the balance of unrecognized tax benefits as of December 31, 2013 and 2012 are $363,303 and $361,465, respectively, of tax benefits that, if recognized, would result in adjustments to other tax accounts, primarily deferred taxes.
The Company records interest and penalties on unrecognized tax benefits in its provision for income taxes.  Accrued interest and penalties are included within the related liability for unrecognized tax benefit line in the consolidated balance sheet.  Related to the unrecognized tax benefits noted above, the Company reduced the amount recorded for  interest by a net of $49,101 during 2013 as a result of the years in which the IRS’ claim included the potential deemed dividends and other foreign income in taxable income, and in total as of December 31, 2013, had recognized a liability for interest of $14,923. During 2012, the Company recorded interest of $8,306 and in total as of December 31, 2012, had recognized a liability for interest of $64,024.
The Company believes that it is reasonably possible that a decrease of up to $359,459 in unrecognized tax benefits related to issues currently under examination by the taxing authorities will be settled during 2014. After taking into consideration tax attributes, such as net operating loss carryforwards, and interest, these unrecognized tax benefits represent a liability for uncertain tax positions of $234,623 which is included in income taxes payable as of December 31, 2013. In addition, a noncurrent reserve of approximately $26,585 has been recorded for uncertain tax positions as of December 31, 2013, which is substantially related to the tax effects of the cumulative potential deemed dividends.
The Company is subject to taxation in the U.S. and various states and foreign jurisdictions. With few exceptions, as of December 31, 2013, the Company is not subject to U.S. federal, state or local, or foreign examinations by tax authorities for years before 2004. The Company is currently under examination by the IRS for the periods 2004 through 2012.
On February 11, 2013, the IRS filed its original claim with the Bankruptcy Court seeking $463,013 in taxes and interest.  Subsequent to this original claim, the Company provided the IRS with additional information which resulted in the December 19, 2013 amended and reduced claim totaling $264,278 in taxes and interest for the periods 2004 through 2012. On January 21, 2014, the IRS amended the December 19, 2013 claim to adjust for a computational error in calculating the interest thereby reducing the claim to $255,760.  As of December 31, 2013, the claim submitted by the IRS has not been approved by the Bankruptcy Court and, therefore, the Company does not consider the IRS claim to have been effectively settled. This IRS claim has been reflected in income taxes payable on the consolidated balance sheet as of December 31, 2013.

CAPITAL_STOCK_AND_STOCK_COMPEN

CAPITAL STOCK AND STOCK COMPENSATION	12 Months Ended
	Dec. 31, 2013
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]	'
Shareholders' Equity and Share-based Payments [Text Block]	'
	NOTE 15 — CAPITAL STOCK AND STOCK COMPENSATION:
	The Company accounts for stock compensation expense in accordance with the fair value based method required by ASC 718, Compensation – Stock Compensation. Such fair value based method requires share based payment transactions to be measured based on the fair value of the equity instruments issued.  Accounting guidance requires a true-up of forfeiture estimates for all awards with service conditions through the vesting dates so that compensation expense is recognized only for awards that actually vest.
	The 2004 Stock Incentive Plan
	The Company’s 2004 Stock Incentive Plan, as amended and restated as of June 2010 (the “2004 Plan”), enables the Company to grant stock- based awards, including stock options, stock appreciation rights, restricted stock and performance awards to employees, consultants and non-employee directors.    A total of 3,308,707 shares of the Company’s stock may be issued or used as the basis for awards under the 2004 Plan as of December 31, 2013. There were no restricted common stock, restricted stock units or performance related grants or options during the year ended December 31, 2013.
	Restricted Stock Units
	The Company granted a total of  45,000 and 45,192 restricted stock units during the years ended December 31, 2012 and 2011, respectively, to certain of its non-employee directors. At the date of the awards the fair market value of the Company’s stock was $10.00 (2012) and $26.55 (2011) per share. Each restricted stock unit represents a contingent right to receive one share of common stock upon the non-executive director’s termination of service as a board member. Such restricted stock units vest ratably over a four-year period, which period may be accelerated provided that the director has served until the earlier of (a) the first anniversary of the grant date or (b) the next annual meeting of the Company’s stockholders. The restricted stock units have no voting rights and may not be transferred or otherwise disposed of while the non-employee director is a director. The non-employee director is entitled to dividends in the form of additional restricted stock units at the same time dividends are paid on the Company’s common stock in an amount equal to the result obtained by dividing (i) the product of (x) the amount of units owned by the non-employee director on the record date for the dividend times (y) the dividend per share by (ii) the closing price of a share of the Company’s common stock on the payment date, which restricted units vest immediately on the payment date for the dividend.
	Restricted Common Stock, Performance Related Grants and Options
	During the two years ended December 31, 2012, the Company awarded a total of  401,409 (2012) and 82,544 (2011) shares of restricted common stock at no cost to certain of its employees, including senior officers. Restrictions limit the sale or transfer of these shares until they vest, which occurs over a four or five-year period. During the restriction period, the shares will have voting rights and cash dividends will be paid if declared. The weighted average fair values of the restricted stock issued during the two years ended December 31, 2012 were $10.09 (2012) and $34.90 (2011) per share (the market prices at dates of grant).
	During the year ended December 31, 2012, the Company granted certain of its senior officers performance awards valued at an aggregate of approximately $1,307 on the grant date. Each performance award represents a contingent right to receive cash or, at the Company’s option, shares of common stock of the Company, based upon certain market related performance goals being met and the covered employees being continuously employed through the end of the three-year period over which the performance goals are measured. The performance related grants were valued using a Monte Carlo pricing model that takes into account the market related performance goals described in the grants. It is the Company’s intention (but not an obligation) to settle the awards in shares of the Company’s common stock to the extent such shares are available for issuance under the 2004 Plan on the settlement date. To the extent sufficient shares are not available for issuance under the 2004 Plan or the Compensation Committee of the Board of Directors determines not to settle the awards in shares, the awards shall be paid in cash. As a result of the current and expected availability of shares under the 2004 Plan and the Company’s intent to settle these awards in shares of the Company’s common stock if such shares are available, these cash based performance awards are being accounted for as equity awards. The Company will evaluate at each reporting date, the sufficiency of shares available under the 2004 Plan to settle the awards in shares. If at any reporting date in the future the shares available under the 2004 Plan are not sufficient, these awards would be bifurcated into the portion that can be settled in shares and the portion that would have to be settled in cash, with the latter portion being classified as a liability award.
	During the year ended December 31, 2011, the Company granted a total of  232,107 performance related restricted stock units to certain of its employees, including senior officers.  Each performance stock unit represents a contingent right to receive  shares of common stock of the Company based upon certain market related performance goals being met and the covered employees being continuously employed through the end of the period over which the performance goals are measured.  The performance stock units have no voting rights and may not be transferred or otherwise disposed of until they vest.  Dividends will be paid  when the performance period expires and are conditioned upon the attainment of the performance goals. The estimated weighted average grant-date fair value of performance stock units awarded during 2011 was $17.43. The performance related grants in 2011 were valued using a Monte Carlo pricing model that takes into account the market related performance goals described in the grants.
	No performance related restricted stock units or performance related options vested during the three years ended December 31, 2013, since the market related performance goals were not met.
	Compensation expense is recognized over the vesting period, contingent or otherwise, applicable to each grant, using the straight-line method. Compensation expense as a result of all of these grants of restricted stock, restricted stock units and performance related awards was $61, $6,115 and $6,959 during each of the years ended December 31, 2013, 2012 and 2011, respectively. Such compensation expense for 2013 is net of a reduction of $3,935 relating to the true-up of estimated forfeiture estimates to reflect actual experience for restricted stock grants.
	Activity with respect to restricted common stock and restricted stock units is summarized as follows:
	Nonvested Shares Outstanding at December 31, 2010	351,695
	Granted	359,843
	Vested ($35.46 to $64.92 per share)	-127,391
	Forfeited	-75,087
	Nonvested Shares Outstanding at December 31, 2011	509,060
	Granted	446,409
	Vested ($39.41 to $64.92 per share)	-159,530
	Forfeited	-15,345
	Nonvested Shares Outstanding at December 31, 2012	780,594
	Vested ($10.00 to $43.40 per share)	-155,932
	Forfeited	-379,163
	Nonvested Shares Outstanding at December 31, 2013	245,499
	Stock Options
	Options covering 672,956 shares are outstanding under the 2004 Plan with exercise prices ranging from $12.50 to $64.92 per share (equal to or greater than the market prices at dates of grant).
	Options covering 8,000 shares are outstanding under the 1999 non-employee director stock option plan with an exercise price of $44.47 per share (the market price at date of grant). The plan provided for the grant of an initial option for 7,500 shares and an annual option for 1,000 shares thereafter to each non-employee director at an exercise price equal to market value at the date of the grant. Initial options vested and became exercisable over a three-year period; annual options vested and became exercisable one year from the date of the grant. All options expire ten years from the date of grant. No further options may be granted under this plan.
	Stock option activity under all plans is summarized as follows:
	Options Outstanding at December 31, 2010	1,543,206
	Granted	626,312
	Forfeited	-300,831
	Exercised	-
	Options Outstanding at December 31, 2011	1,868,687
	Granted	377,653
	Forfeited	-41,559
	Exercised	-
	Options Outstanding at December 31, 2012	2,204,781
	Granted	-
	Forfeited	-1,523,825
	Exercised	-
	Options Outstanding at December 31, 2013	680,956
	Options Exercisable at December 31, 2013	550,010
	The weighted average remaining contractual life of the outstanding stock options at December 31, 2013 was 5.3 years. The range of exercise prices of the stock options outstanding at December 31, 2013 was $12.50 to $64.92 per share. The weighted average exercise prices of the stock options outstanding at December 31, 2013 and 2012 were $39.48 and $36.54 per share, respectively. None of the stock options which vested during the years ended December 31, 2013, 2012 and 2011 and none of stock options outstanding and exercisable at December 31, 2013 were “in-the-money.”
	The fair values of the options granted were estimated on the dates of grant using the Black-Scholes option pricing model with the following weighted average assumptions for 2012 and 2011: risk free interest rates of 1.2% and 2.2%, dividend yields of 1.9% and 4.1%, expected stock price volatility factors of .54 and .45, and expected lives of 6.0 and 8.1 years. The weighted average grant-date fair values of options  granted in 2012 and 2011 were $3.83 and $5.72, respectively.
	The Black-Scholes option valuation model was developed for use in estimating the fair value of traded options that have no vesting restrictions and are fully transferable. In addition, option valuation models require the input of highly subjective assumptions, including the expected stock price volatility. Since the Company’s stock options have characteristics significantly different from those of traded options, and because changes in the subjective input assumptions can materially affect the fair value estimate, in management’s opinion, the existing models do not necessarily provide a reliable single measure of the fair value of its stock options.
	Net compensation expense/(income) as a result of the grants of stock options described above was $(192), $1,764 and $2,748 during each of the years ended December 31, 2013, 2012, and 2011, respectively. Such compensation income for 2013 includes income of $1,667 relating to the true-up of estimated forfeiture estimates to reflect actual experience for option grants.
	As of December 31, 2013, there was $2,384 of unrecognized compensation cost related to nonvested share-based compensation arrangements. That cost is expected to be recognized over a weighted average period of 1.70 years.

ACCUMULATED_OTHER_COMPREHENSIV

ACCUMULATED OTHER COMPREHENSIVE LOSS	12 Months Ended
	Dec. 31, 2013
Accumulated Other Comprehensive Income (Loss) Note [Abstract]	'
Accumulated Other Comprehensive Income (Loss) Note [Text Block]	'
	NOTE 16 —ACCUMULATED OTHER COMPREHENSIVE LOSS
	The components of accumulated other comprehensive loss, net of related taxes, in the consolidated balance sheets follow:
	At December 31,		2013		2012
	Unrealized gains on available-for-sale securities		$	-	$	49
	Unrealized losses on derivative instruments			-59,263		-98,937
	Items not yet recognized as a component of net periodic benefit cost (pension and other			-10,081		-14,893
	postretirement benefit plans)
			$	-69,344	$	-113,781
	The following tables present the change in the balances of each component of accumulated other comprehensive loss, net of related taxes, for the three years ended December 31, 2013.
			Unrealized		Unrealized		Items not yet		Total
			gains/(losses)		gains/(losses)		recognized as a
			on available-		on cash flow		component of
			for-sale		hedges		net periodic
			securities				benefit cost
							(pension and
							other
							postretirement
							plans)
	Balance as of December 31, 2012		$	49	$	-98,937	$	-14,893	$	-113,781
	Current period other comprehensive income,			-181		19,114		4,336		23,269
	excluding amounts reclassified from accumulated
	other comprehensive income
	Amounts reclassified from accumulated other			132		20,560		476		21,168
	comprehensive loss
	Total change in accumulated other comprehensive loss			-49		39,674		4,812		44,437
	Balance as of December 31, 2013		$	-	$	-59,263	$	-10,081	$	-69,344
	Balance as of December 31, 2011		$	34	$	-104,554	$	-14,787	$	-119,307
	Current period other comprehensive loss, excluding			-836		-20,709		-409		-21,954
	amounts reclassified from accumulated other
	comprehensive loss
	Amounts reclassified from accumulated other			851		26,326		303		27,480
	comprehensive loss
	Total change in accumulated other comprehensive loss			15		5,617		-106		5,526
	Balance as of December 31, 2012		$	49	$	-98,937	$	-14,893	$	-113,781
	Balance as of December 31, 2010		$	265	$	-69,886	$	-7,267	$	-76,888
	Current period other comprehensive loss, excluding			-557		-65,317		-7,669		-73,543
	amounts reclassified from accumulated other
	comprehensive loss
	Amounts reclassified from accumulated other			326		30,649		149		31,124
	comprehensive loss
	Total change in accumulated other comprehensive loss			-231		-34,668		-7,520		-42,419
	Balance as of December 31, 2011		$	34	$	-104,554	$	-14,787	$	-119,307
	The following table presents information with respect to amounts reclassified out of accumulated other comprehensive loss for the three years ended December 31, 2013.
			Years Ended December 31,
	Accumulated Other Comprehensive Income Component		2013		2012		2011		Statement of Operations Line Item
	Unrealized losses on available-for-sale securities:
	Impairment recorded relating to securities held by		$	-132	$	-851	$	-326	Other income/(expense)
	the Company's foreign subsidiaries
	Unrealized losses on cash flow hedges:
	Interest rate swaps entered into by the Company's			-20,560		-20,864		-22,980	Equity in income of affiliated companies
	equity method joint venture investees
	Interest rate swaps entered into by the Company's			-		-7,697		-10,676	Interest expense
	subsidiaries
	Foreign currency contracts entered into by the			-		-		602	General and administrative expenses
	Company's foreign subsidiaries
	Items not yet recognized as a component of net periodic benefit cost (pension and other postretirement plans):
	Net periodic benefit costs associated with			-678		-526		-100	General and administrative expenses
	pension and postretirement benefit plans
	for shore-based employees
	Net periodic benefit costs associated with			65		-24		-90	Vessel expenses
	pension and postretirement benefit plans
	for seagoing employees
				-21,305		-29,962		-33,570	Total before tax
			137		2,482		2,446	Tax (expense) or benefit (1)
		$	-21,168	$	-27,480		-31,124	Total net of tax
	-1	The tax benefit relates to the net periodic benefit costs of the Company's pension and postretirement benefit plans as well as interest rate swaps entered into by the Company's domestic subsidiaries
The following amounts are included in accumulated other comprehensive loss at December 31, 2013, which have not yet been recognized in net periodic cost: unrecognized transition obligation of $ 7 ($ 4 net of tax), unrecognized prior service credits of $ 1,229 ($ 496 net of tax) and unrecognized actuarial losses $ 14,535 ($ 10,573 net of tax). The transition obligation, prior service credit and actuarial loss included in accumulated other comprehensive loss and expected to be recognized in net periodic cost during 2014 are a loss of $ 7 ($ 5 net of tax), a gain of $ 246 ($ 148 net of tax) and a loss of $ 389 ($ 283 net of tax), respectively.
At December 31, 2013, the Company expects that it will reclassify $ 18,992 of net losses on derivative instruments from accumulated other comprehensive loss to earnings during the next twelve months due to the payment of variable rate interest associated with floating rate debt of the Company’s FSO and LNG equity method investees.
See Note 8, “Equity Method Investments,” for additional information relating to derivatives held by the Company’s equity method investees and Note 12, “Fair Value of Financial Instruments, Derivatives and Fair Value,” for additional disclosures relating to derivative instruments.
The income tax expense/(benefit) allocated to each component of other comprehensive loss follows:
		Tax (expense)/		Tax (expense)/
		benefit on		benefit on items
		unrealized		not yet recognized
		gains/(losses) on		as a component of
		cash flow hedges		net periodic benefit
				cost
For the year ended December 31, 2013
Current period change excluding amounts reclassified from		$	-	$	-2,899
accumulated other comprehensive income
Amounts reclassified from accumulated other comprehensive income			-		-137
Total change in accumulated other comprehensive income		$	-	$	-3,036
For the year ended December 31, 2012
Current period change excluding amounts reclassified from		$	131	$	118
accumulated other comprehensive income
Amounts reclassified from accumulated other comprehensive income			-2,235		-247
Total change in accumulated other comprehensive income		$	-2,104	$	-129
For the year ended December 31, 2011
Current period change excluding amounts reclassified from		$	504	$	3,392
accumulated other comprehensive income
Amounts reclassified from accumulated other comprehensive income			-2,405		-41
Total change in accumulated other comprehensive income		$	-1,901	$	3,351

LEASES

LEASES	12 Months Ended
	Dec. 31, 2013
Leases [Abstract]	'
Leases of Lessee and Lessor Disclosure [Text Block]	'
	NOTE 17 — LEASES:
		1	Charters-in:
	As of December 31, 2013, the Company had commitments to charter-in 22 vessels. All of the charter-ins are accounted for as operating leases, of which 13 are bareboat charters and nine are time charters. Lease expense relating to charters-in is included in “charter hire expenses” on the consolidated statements of operations.
	Bareboat Charters-in:
	At December 31, 2013		Amount		Operating Days
	2014		$	93,423		4,745
	2015			97,817		4,745
	2016			99,038		4,758
	2017			98,219		4,713
	2018			93,200		3,929
	Thereafter			111,318		3,450
	Net minimum lease payments		$	593,015		26,340
	Time Charters-in:
	At December 31, 2013		Amount		Operating Days
	2014		$	38,942		3,419
	2015			22,606		1,847
	2016			1,004		73
	Net minimum lease payments		$	62,552		5,339
	The future minimum commitments for time charters-in excludes amounts with respect to vessels chartered-in where the duration of the charter was one year or less at the inception but includes amounts with respect to workboats employed in the International Crude Tankers Lightering business.  Time charter-in commitments have been reduced to reflect estimated days that the vessels will not be available for employment due to drydock because the Company does not pay time charter hire when time chartered-in vessels are not available for its use. Certain of the bareboat charters-in provide for the payment of profit share to the owners of the vessels calculated in accordance with the respective charter agreements. Because such amounts and the periods impacted are not reasonably estimable they are not currently reflected in the table above. Certain of the charters in the above tables also provide the Company with renewal and purchase options.
	Between December 2012 and April 2013, the Bankruptcy Court issued orders approving the Company’s rejection of leases on 25 chartered-in International Flag vessels. The Company entered into new charter agreements with the owners of eight of these vessels (seven Handysize Product Carriers and one Aframax), which lease agreements were assumed as amended pursuant to orders of the Bankruptcy Court, at lower rates. One Suezmax and one International Flag Handysize Product Carrier were redelivered to owners in December 2012. An additional fifteen vessels (one Suezmax, one Aframax, two Panamax Product Carriers and eleven Handysize Product Carriers) were redelivered to their owners during the four months ended April 30, 2013.
	The Company’s policy is to calculate estimates for lease termination costs related to the rejected charters using a market participant’s discount rate. For the years ended December 31, 2013 and 2012, the Company has recorded estimated charges for lease termination costs totaling $ 248,839 and $ 30,187, respectively, related to the rejected charters for vessels that had been redelivered to their owners. These charges, which are included in Reorganization items, net in the consolidated statements of operations, reflect revisions made to the charges originally recorded as a result of the Bankruptcy Court’s approval of agreements entered into with the counterparties for the 25 chartered-in International Flag vessels that have resulted in agreed amended claims. The related reserves of $ 282,599 and $ 30,539 are included in Liabilities Subject to Compromise in the consolidated balance sheets as of December 31, 2013 and 2012, respectively.
	On December 11, 2009, the Company entered into an agreement with American Shipping Company ASA (“AMSC”) and Aker Philadelphia Shipyard ASA (“APSI”) and certain of their affiliates and other related parties (collectively “Aker”). In connection with such agreement, OSG agreed to purchase two U.S. Flag Handysize Product Carriers (Overseas Cascade and Overseas Chinook), which vessels were previously subject to bareboat charters-in. In addition, the agreement provided that if certain conditions were satisfied by Aker, the charter-in terms of the other ten Product Carriers constructed by APSI would be extended for a period of ten years from December 11, 2009. These conditions were met during 2012 and on July 30, 2012, the Company entered into agreements with AMSC and its affiliates to extend or reduce, as applicable, the fixed term of the ten bareboat charter-in agreements to December 11, 2019.
	2. Charters-out:
	The future minimum revenues, before reduction for brokerage commissions, expected to be received on noncancelable time charters and certain COAs for which minimum annual revenues can be reasonably estimated and the related revenue days (revenue days represent calendar days, less days that vessels are not available for employment due to repairs, drydock or lay-up) are as follows:
					Revenue
	At December 31, 2013		Amount		Days
	2014		$	364,905		9,246
	2015			232,190		4,598
	2016			148,524		2,846
	2017			91,201		1,640
	2018			55,337		881
	Thereafter			29,387		343
	Net minimum lease payments		$	921,544		19,554
	Future minimum revenues do not include (1) the Company’s share of time charters entered into by the pools in which it participates, (2) the Company’s share of time charters entered into by the joint ventures, which the Company accounts for under the equity method and (3) COAs for which minimum annual revenues cannot be reasonably estimated. Revenues from those COAs that are included in the table above, $ 28,665 (2014), $ 26,559 (2015), $ 22,023 (2016), $ 22,347 (2017), $ 22,698 (2018) and  $ 29,387 (thereafter), are based on minimum annual volumes of cargo to be loaded during the contract periods at a fixed price, and do not contemplate early termination of the COAs as provided in the agreements. Amounts that would be due to the Company in the event of the cancellation of the COA contracts have not been reflected in the above table. Revenues from a time charter are not generally received when a vessel is off-hire, including time required for normal periodic maintenance of the vessel. In arriving at the minimum future charter revenues, an estimated time off-hire to perform periodic maintenance on each vessel has been deducted, although there is no assurance that such estimate will be reflective of the actual off-hire in the future.
	Amounts that would be due to the Company under a ten-year charter-out agreement scheduled to commence in early 2015 upon the Company’s fulfillment of its obligation to convert a Jones Act Product Carrier into a shuttle tanker, which is a condition precedent under the terms of the charter, have not been reflected in the table above.
	Effective September 1, 2012, the Company entered into a termination, settlement and replacement agreement with Sunoco, a core customer of the Company’s Delaware Bay Lightering business. The agreement, among other things, provided for (i) a 50% reduction of the required minimum barrel volumes under the long-term Lightering contract; (ii) Sunoco’s relinquishment of any right to approximately $ 27,100 previously paid to the Company and accounted for as deferred revenues, which otherwise would have been carried forward and applied toward the cost of Lightering barrels for Sunoco in excess of the minimum barrel volumes stated in the original Lightering contract; and (iii) the payment by Sunoco of $ 13,300 as additional compensation for the reduction in the minimum barrels under the replacement agreement. A total of $ 40,400 was recognized in shipping revenues during the third quarter of 2012 related to this termination, settlement and replacement agreement. The new agreement runs through April 2020.
		3	Office space:
	The future minimum commitments under lease obligations for office space are as follows:
	At December 31, 2013
	2014		$	3,001
	2015			1,990
	2016			1,106
	2017			523
	2018			314
	Net minimum lease payments		$	6,934
	In April 2013, the Bankruptcy Court approved the Company’s rejection of the lease agreement for its corporate headquarters office space. The Company vacated the office space on June 30, 2013 and recorded a provision of $ 3,646 for the estimated damages it expects the Bankruptcy Court will allow the building owner to claim, which is included in its provision for estimated claims on rejected executory contracts, a component of Reorganization items, net in the consolidated statement of operations. The Company also recorded a $ 1,638 non-cash write-off of the unamortized cost of leasehold improvements and other property for the year ended December 31, 2013.
	The rental expense for office space, which is included in general and administrative expenses in the consolidated statements of operations, amounted to $ 3,959 in 2013, $ 4,550 in 2012 and $ 4,614 in 2011.

PENSION_AND_OTHER_POSTRETIREME

PENSION AND OTHER POSTRETIREMENT BENEFIT PLANS	12 Months Ended
	Dec. 31, 2013
Compensation and Retirement Disclosure [Abstract]	'
Pension and Other Postretirement Benefits Disclosure [Text Block]	'
	NOTE 18 —PENSION AND OTHER POSTRETIREMENT BENEFIT PLANS:
	In accordance with ASC 852, the pension and other postretirement benefit liabilities relating to plans associated with Debtor entities were classified as liabilities subject to compromise as of December 31, 2013 and 2012.
	Pension Plans
	In connection with the November 2006 acquisition of Maritrans, the Company assumed the obligations under the defined benefit retirement plan of Maritrans Inc. (“the Maritrans Plan”). As of December 31, 2006, the Company froze the benefits under the Maritrans Plan. At December 31, 2013, the Maritrans Plan is the only domestic defined benefit pension plan in existence. The Maritrans Plan was noncontributory and covered substantially all shore-based employees and substantially all of the seagoing supervisors who were supervisors in 1984, or who were hired in, or promoted into, supervisory roles between 1984 and 1998 for that period of time. Beginning in 1999, the seagoing supervisors’ retirement benefits are provided through contributions to an industry-wide, multi-employer union sponsored pension plan. Upon retirement, those seagoing supervisors are entitled to retirement benefits from the Maritrans Plan for service periods between 1984 and 1998 and from the multiemployer union sponsored plan for other covered periods. Retirement benefits are based primarily on years of service and average compensation for the five consecutive plan years that produce the highest results.
	The Company also has obligations outstanding under an unfunded, nonqualified supplemental defined benefit pension plan, which was terminated in December 2005, to five former employees entitled to deferred benefits. The Company’s obligations to pay benefits under the unfunded, nonqualified supplemental defined benefit pension plan were terminated in connection with the Company’s filing for bankruptcy. Accordingly, the obligation has been classified as Liabilities Subject to Compromise in the consolidated balance sheets as of December 31, 2013 and 2012.
	Certain of the Company’s foreign subsidiaries have pension plans that, in the aggregate, are not significant to the Company’s consolidated financial position. The liabilities for such pension plans are included in other liabilities in the consolidated balance sheets as of December 31, 2013 and 2012. On November 3, 2010, OSG provided a guarantee to the Trustees of the OSG Ship Management (UK) Ltd. Retirement Benefits Plan (the “Scheme”) in respect to the obligations of OSG Ship Management (UK) Ltd., the principal employer of the Scheme, in the amount not to exceed GBP 4,896 ($8,073  at December 31, 2013).
	Multiemployer Pension and Postretirement Benefit plans
	Certain of the Company’s domestic subsidiaries are parties to collective-bargaining agreements that require them to make contributions to three jointly managed (Company and union) multiemployer pension plans covering seagoing personnel of U.S. Flag vessels. All three plans, the American Maritime Officers (“AMO”) Pension Plan, the Seafarers Pension Plan (“SIU”) and the Marine Engineers’ Beneficial Association (“MEBA”) Defined Benefit Pension Plan, are individually significant (as such term is defined in the accounting standards). This is because of the potential withdrawal liabilities under the AMO Pension Plan and the MEBA Defined Benefit Pension Plan and because the Company’s contributions to the SIU plan constitute more than 5% of total employer contributions to the plan during the pension plan year ending in 2012.
	Plan level information is available in the public domain for each of the multiemployer pension plans the Company participates in. The table below provides additional information about the Company’s participation in the above multi-employer pension plans:
			Pension Protection								Contributions made
			Act
			Zone Status								by the Company
			EIN / Pension						Rehabilitation
	Pension Plan		Plan Number		2013		2012		Plan Status		2013				2012		2011
	AMO Pension Plan		13-1936709		Yellow (1)		Red (1)		Implemented		$	975			$	890	$	805
	MEBA Pension Plan		51-6029896		Green (1)		Green (1)		None			-				-		-
	Seafarers Pension Plan		13-6100329		Green (1)		Green (1)		None			407				416		425
									Total contributions		$	1,382			$	1,306	$	1,230
	(1) A "Red" Zone Status plan is a plan that is funded less than  65% and currently has a funding deficiency or a funding deficiency that is projected in the near term.  A "Yellow" Zone Status plan is a plan that has a funding ratio between 65% and 80%. A "Green" Zone Status plan is a plan that is 80% funded or more.
	The plan years for the three union plans end as follows: MEBA and SIU on December 31 and AMO on September 30. The Company has no future minimum contribution requirements under the three multiemployer pension plans shown above as of December 31, 2013 and any such contributions are subject to negotiations between the employers and the unions. In January 2012, MEBA and the employers agreed to reduce pension benefit accrual rates for future service. Additionally, MEBA and OSG agreed to contractual changes transferring pension contribution obligations to the union members through reallocation of amounts paid by OSG for wages and certain other compensation. In October 2009, the AMO plan filed with the Department of Labor as being in critical status as defined by the Pension Relief Act of 2010. The related rehabilitation plan, which was implemented in 2010, eliminated or reduced certain adjustable benefits, including cost of living adjustments, early retirement and disability pensions. In addition, AMO froze their plan effective January 1, 2010 for the future accrual of benefits and imposed a 5% surcharge during 2011 on the contribution rate per man day. The AMO plan shifted from critical to endangered status as of the end of the 2012 plan year. The MEBA and SIU plans utilized the special 29-year amortization rules under Pension Protection Act to amortize their investment losses from 2008, instead of 15 years. In order to take advantage of this extended amortization period, the plans were not permitted to increase benefits through the 2012 plan years unless the increases were funded by additional contributions and other conditions were met. The Employee Retirement Income Security Act of 1974 requires employers who are contributors to U.S. multiemployer plans to continue funding their allocable share of each plan’s unfunded vested benefits in the event of withdrawal from or termination of such plans. Based on information received from the trustees of the SIU Pension Plan, the Company is not subject to withdrawal liabilities under that plan. Based on the actuarial report received from the trustees of the MEBA Pension Plan, as of December 31, 2012, the Company’s estimated withdrawal liability was approximately $7,462. Based on the actuarial report received from the trustees of the AMO Pension Plan, as of September 30, 2012, the Company’s estimated withdrawal liability was approximately $30,842. The Company has no intentions of terminating its participation in any of the three multiemployer pension plans. Accordingly, no provisions have been made for the estimated withdrawal liability as of December 31, 2013.
	The AMO, SIU and MEBA collective bargaining agreements expire in March 2015, June 2017 and June 2020, respectively. The collective bargaining agreements also require the Company to make contributions to certain other postretirement employee benefit plans the unions offer to their members. Such contributions were not material during the three years ended December 31, 2013.
	Certain other seagoing personnel of U.S. Flag vessels are covered under a defined contribution plan, the cost of which is funded as accrued. The costs of all these plans were not material during the three years ended December 31, 2013.
	Postretirement Benefit plans
	The Company also provides certain postretirement health care and life insurance benefits to qualifying domestic retirees and their eligible dependents. The health care plan for shore-based employees and their dependents and seagoing licensed deck officers (“Deck Officers”) and their dependents is contributory at retirement, while the life insurance plan for all employees is noncontributory. In general, postretirement medical coverage is provided to shore-based employees hired prior to January 1, 2005 and all Deck Officers who retire and have met minimum age and service requirements under a formula related to total years of service. The Company no longer provides prescription drug coverage to its retirees or their beneficiaries once they reach age 65. The Company does not currently fund these benefit arrangements and has the right to amend or terminate the health care and life insurance benefits at any time.
	Information with respect to the domestic pension and postretirement benefit plans for which the Company uses a December 31 measurement date, follow:
			Pension Benefits								Other Benefits
	At December 31,		2013				2012				2013				2012
	Change in benefit obligation:
	Benefit obligation at beginning of year		$	51,022			$	46,854			$	4,466			$	6,395
	Cost of benefits earned (service cost)			-				-				118				195
	Interest cost on benefit obligation			1,775				2,032				178				237
	Amendments			-				-				-				-3,012
	Actuarial (gains)/losses			-4,500				4,374				-621				804
	Benefits paid			-2,261				-2,238				-222				-153
	Benefit obligation at year end			46,036				51,022				3,919				4,466
	Change in plan assets:
	Fair value of plan assets at beginning of year			31,392				28,897				-				-
	Actual return on plan assets			5,574				3,161				-				-
	Employer contributions			1,318				1,545				-				-
	Benefits paid			-2,261				-2,211				-				-
	Fair value of plan assets at year end			36,023				31,392				-				-
	Unfunded status at December 31		$	-10,013			$	-19,630			$	-3,919			$	-4,466
	The unfunded benefit obligations for the Domestic Debtor entities’ pension and postretirement benefit plans are included in Liabilities Subject to Compromise in the consolidated balance sheet as of December 31, 2013 and 2012.
	Information for domestic defined benefit pension plans with accumulated benefit obligations in excess of plan assets follows:
	At December 31,			2013				2012
	Projected benefit obligation		$	46,036			$	51,022
	Accumulated benefit obligation			46,036				51,022
	Fair value of plan assets			36,023				31,392
			Pension benefits												Other benefits
	For the year ended December 31,			2013				2012				2011				2013		2012		2011
	Components of expense:
	Cost of benefits earned		$	-			$	-			$	-			$	118	$	195	$	226
	Interest cost on benefit obligation			1,775				2,032				2,171				178		237		292
	Expected return on plan assets			-2,092				-1,873				-2,030				-		-		-
	Amortization of prior-service costs			-				-				-				-333		-233		-157
	Amortization of transition obligation			-				-				-				7		10		20
	Recognized net actuarial loss			504				316				30				171		160		122
	Net periodic benefit cost		$	187			$	475			$	171			$	141	$	369	$	503
	The weighted-average assumptions used to determine benefit obligations follow:
			Pension benefits						Other benefits
	At December 31,		2013			2012			2013			2012
	Discount rate			4.5	%		3.75	%		5	%		4	%
	Rate of future compensation increases			-			-			-			-
The selection of a discount rate for the Maritrans Plan was derived from  bond yield curves, which the Company believed as of such dates to be appropriate for ongoing plans with a long duration, such as the Maritrans Plan, and that generally mirror the type of high yield bond portfolio the Company could acquire to offset its obligations under the Maritrans Plan.
The weighted-average assumptions used to determine net periodic benefit cost follow:
		Pension benefits						Other benefits
For the year ended December 31,		2013		2012		2011		2013		2012		2011
Discount rate		3.75	%	4.5	%	5.25	%	4	%	4.5	%	5.25	%
Expected (long-term) return on plan assets		6.75	%	6.5	%	6.75	%	-		-		-
Rate of future compensation increases		-		-		-		-		-		-
The assumed health care cost trend rate for measuring the benefit obligation included in Other Benefits above is an increase of 10% for 2014 over the actual 2013 rates, with the rate of increase declining steadily thereafter by 1% per annum to an ultimate trend rate of 5% per annum in 2019. Assumed health care cost trend rates have a significant effect on the amounts reported for the health care plans. A 1% change in assumed health care cost trend rates would have the following effects:
		1% increase				1% decrease
Effect on total of service and interest cost components in 2013		$	41			$	-33
Effect on postretirement benefit obligation as of December 31, 2013		$	376			$	-316
Expected benefit payments are as follows:
		Pension benefits				Other benefits
2014		$	2,287			$	169
2015			2,384				174
2016			2,536				180
2017			2,560				191
2018			2,668				205
Years 2019-2023			14,763				1,189
		$	27,198			$	2,108
The expected long-term rate of return on plan assets is based on the current and expected asset allocations. Additionally, the long-term rate of return is based on historical returns, investment strategy, inflation expectations and other economic factors. The expected long-term rate of return is then applied to the market value of plan assets.
The fair values of the Company’s pension plan assets at December 31, 2013, by asset category are as follows:
						Level 1:
						Quoted prices in active
						markets for identical
Description		Fair Value				assets or liabilities
Cash and cash equivalents		$	1,097			$	1,097
Equity securities:
U.S. companies			16,949				16,949
International companies			7,336				7,336
Corporate debt securities			1,407				1,407
Mutual funds(1)			3,449				3,449
U.S. Treasury securities			4,765				4,765
Mortgage-backed securities			1,020				1,020
Total		$	36,023			$	36,023
-1	The mutual fund investments are invested in intermediate term bonds and fixed income instruments including (but not limited to) mortgage and other asset-backed securities and corporate debt securities of U.S. and non-U.S. issuers.
The Maritrans Plan has historically utilized a strategic asset allocation investment strategy that maintains a targeted allocation of 65% equity and 35% fixed income. The allocation is rebalanced periodically after considering anticipated benefit payments.
The Company contributed $1,318, $1,545 and $1,348 to the Maritrans Plan in 2013, 2012, and 2011, respectively. The Company expects that its contribution in 2014 to the Maritrans Plan will be approximately $1,320, which includes its required contribution and any amounts necessary to prevent the plan from being subject to certain benefit restrictions.
Employee Savings Plans
The Company also has defined contribution plans covering all eligible U.S. employees. Contributions are limited to amounts allowable for income tax purposes. Commencing in 2006, employer contributions include both employer contributions made regardless of employee contributions and matching contributions to the plans. The Company’s contributions to the plan during each of the three years ended December 31, 2013 were not material. All contributions to the plans are at the discretion of the Company.
The Company also has an unfunded, nonqualified supplemental savings plan covering highly compensated U.S. shore-based employees of the Company. This plan provides for levels of hypothetical employer contributions that would otherwise have been made under the Company’s defined contribution plans in the absence of limitations imposed by income tax regulations. The Company’s unfunded obligations under this plan at both December 31, 2013 and 2012 was $13,275 and are included in Liabilities Subject to Compromise in the consolidated balance sheets as of December 31, 2013 and 2012.

OTHER_INCOMEEXPENSE

OTHER INCOME/(EXPENSE)	12 Months Ended
	Dec. 31, 2013
Other Income and Expenses [Abstract]	'
Other Income and Other Expense Disclosure [Text Block]	'
	NOTE 19 —OTHER INCOME/(EXPENSE):
	Other income/(expense) consists of:
	For the year ended December 31,	2013		2012		2011
	Investment income:
	Interest	$	856	$	431	$	918
	Dividends		-		36		220
	Gain/(loss) on sale or write-down of securities and investments		-197		-3,166		313
			659		-2,699		1,451
	Loss on repurchase of debt		-		-		-375
	Gain on derivative transactions		-		1,376		840
	Miscellaneous—net		190		9		238
		$	849	$	-1,314	$	2,154
	Proceeds from sales of available-for-sale securities and gross realized losses on such sales that were included in income before taxes during the years ended December 31, 2013 and 2012 were not material. There were no sales transactions relating to available-for-sale securities during 2011.
	During 2013, 2012 and 2011, in accordance with the Company’s accounting policy on other-than-temporary declines in fair value of available-for-sale securities (see Note 4, “Summary of Significant Accounting Policies”), the Company recorded impairment losses aggregating $132, $816 and $326, respectively. The Company also recorded a $2,600 loss on a cost method investment in a joint venture the Company exited during 2012.

SEVERANCE_AND_RELOCATION_COSTS

SEVERANCE AND RELOCATION COSTS AND AGREEMENTS WITH EXECUTIVE OFFICERS	12 Months Ended
	Dec. 31, 2013
Restructuring and Related Activities [Abstract]	'
Restructuring and Related Activities Disclosure [Text Block]	'
	NOTE 20 —SEVERANCE AND RELOCATION COSTS AND AGREEMENTS WITH EXECUTIVE OFFICERS:
	Severance and Relocation
	Severance related costs are recognized over the period commencing on the date on which the affected employees are notified and ending on the date when required services are completed.
	In April 2013, thirty-seven employees, including three senior executive officers of the Company were terminated as part of a reduction in force (“April RIF”). The Company recorded $3,427 in severance related costs during 2013 related to the April RIF.
	In February 2013, the Company’s then-current Chief Executive Officer resigned. In conjunction with this resignation, the Company reversed previously recognized compensation expense of $3,209 relating to unvested restricted stock and stock option awards.
	In the first quarter of 2012, the Company announced the relocation of the technical management (“TMC”) of its conventional International Flag crude oil tanker fleet from its Newcastle, U.K. office to its Athens, Greece office. In connection therewith, approximately 50 employees were terminated in Newcastle. The Company released excess reserves (net of additional provisions) of $422 and recorded charges totaling $3,163 for the years ended December 31, 2013 and 2012, respectively, related to the severance and relocation of technical management.
	Activity relating to the reserves for the April RIF and TMC for the two years ended December 31, 2013 is summarized as follows:
				Apr-13
		TMC		RIF
	Activity for the year ended December 31, 2012:
	Original estimate	$	2,100
	Change in estimate		1,063
	Utilized		-2,705
	Balance at December 31, 2012		458
	Activity for the year ended December 31, 2013:
	Original estimate			$	3,824
	Change in estimate		33		25
	Utilized		-36		-2,059
	Release of excess reserves		-455		-422
	Balance at December 31, 2013	$	-	$	1,368
	See Note 24, “Subsequent Events,” for additional information on severance plans subsequent to December 31, 2013.
	Agreements with Executive Officers
	On March 22, 2013, the Company entered into an agreement with its current President and Chief Executive Officer who assumed that role in February 2013, confirming the terms of his employment with the Company (the “Letter Agreement’). The terms of the Letter Agreement were subsequently approved by the Bankruptcy Court and provide for the waiver of any and all rights, claims or causes of action that the Company may have, including, without limitation, claims pursuant to Sections 547 and 548 of the Bankruptcy Code, with respect to payments such executive officer received in connection with his June 15, 2012 letter agreement with the Company described below, conditioned upon such waiver remaining effective only in the event that either (1) he remains continuously employed with the Company through the date on which the Company emerges from the proceedings under Chapter 11 or (2) his employment is terminated in connection with a divestiture of one or more of the Company’s assets or businesses. Furthermore, the agreement provides for an allowed administrative claim against OSG Ship Management, Inc., a wholly owned subsidiary of the Company, pursuant to Section 503(b)(1)(A) of the Bankruptcy Code, for amounts totaling $6,399 owed to the President and Chief Executive Officer under the Company’s Supplemental Executive Savings Plan. This provision is subject to his continued employment with the Company through December 1, 2014.
	On June 15, 2012, the Company entered into agreements with the Company’s then-current Chief Financial Officer and the Head of U.S. Strategic Business unit (its current President and Chief Executive Officer), to pay each executive officer a lump sum retention bonus of $1,500 in order to encourage their continued employment through to June 30, 2014. Each executive officer was responsible to repay the full gross amount of the retention bonus to the Company within thirty days if they are terminated by the Company for cause or resign without good reason, as defined within the agreements.
	On October 12, 2011, OSG and its former Chief Executive Officer entered into two agreements. One agreement replaced the employment letter agreement dated as of January 19, 2004, as amended, and extended the time period from January 19, 2012 to October 12, 2016 for certain protection in the event of termination of employment without cause or for good reason. The other agreement amended the change of control agreement dated as of December 31, 2008, to extend its term to end on the earliest to occur of three events, one of which is a fixed date, which the letter agreement extended from January 19, 2012, to October 12, 2016. In connection with entering into the above agreements, on October 12, 2011, OSG granted to its former Chief Executive Officer premium priced stock options for 450,000 shares of common stock at an exercise price of $22.50 per share and 177,778 performance based restricted stock units that contain vesting conditions.

2013_AND_2012_QUARTERLY_RESULT

2013 AND 2012 QUARTERLY RESULTS OF OPERATIONS (UNAUDITED)	12 Months Ended
	Dec. 31, 2013
Quarterly Financial Information Disclosure [Abstract]	'
Quarterly Financial Information [Text Block]	'
	NOTE 21 — 2013 AND 2012 QUARTERLY RESULTS OF OPERATIONS (UNAUDITED):
	Selected Financial Data for the Quarter Ended		March 31,		June 30,		Sept. 30,		Dec. 31,
	2013
	Shipping revenues		$	247,438	$	228,114	$	267,342	$	273,102
	Gain/(loss) on disposal of vessels, including impairments (a)			-22		1,228		-63		-382,614
	Income/(loss) from vessel operations			1,221		432		7,768		-376,619
	Interest expense			288		31		3		28
	Reorganization items, net (b)			184,621		37,503		14,705		90,341
	Income tax benefit/(provision)			5,835		1,899		-1,947		8,958
	Net income/(loss)			-167,762		-24,147		960		-447,281
	Basic net income/(loss) per share		$	-5.51	$	-0.79	$	0.03	$	-14.67
	Diluted net income/(loss) per share		$	-5.51	$	-0.79	$	0.03	$	-14.67
		(a)	As discussed in Note 7, "Vessels, Deferred Drydock and Other Property," vessel impairment charges aggregating $365,976 were recorded in the fourth quarter. Further, as discussed in Note 10, "Goodwill and Intangible Assets," impairment charges aggregating $16,214 for goodwill and intangible assets related to the International Crude Tankers Lightering business were recorded in the fourth quarter.
		(b)	As discussed in Note 3, "Liabilities Subject to Compromise and Reorganization Items," the Company adjusts its accrued liabilities relating to rejected executory contracts when new information becomes available. In the fourth quarter, the Company increased its accruals by $69,154 based upon such new information.
		(c)	As discussed in Note 2, "Bankruptcy Filing and Going Concern," and Note 11, "Debt," the Debtors filed a petition for relief under Chapter 11 and its debt agreements are classified as Liabilities Subject to Compromise. For the quarter ended December 31, 2013, interest expense of $17,168 was accordingly not recorded.
	2012
	Shipping revenues		$	292,378	$	291,354	$	297,505	$	255,897
	Gain/(loss) on disposal of vessels, including impairments (a)			106		285		-332		-271,418
	Loss from vessel operations			-23,642		-30,439		-13,928		-311,224
	Interest expense (b)			23,010		22,084		23,314		25,013
	Reorganization items, net			-		-		-		41,113
	Income tax benefit/(provision)			-528		911		-105		1,203
	Net loss			-36,860		-52,695		-25,786		-364,773
	Basic net loss per share		$	-1.22	$	-1.74	$	-0.85	$	-12.01
	Diluted net loss per share		$	-1.22	$	-1.74	$	-0.85	$	-12.01
		(a)	As discussed in Note 7, "Vessels, Deferred Drydock and Other Property," impairment charges aggregating $279,382 were recorded in the fourth quarter.
		(b)	As discussed in Note 2, "Bankruptcy Filing and Going Concern," and Note 11, "Debt," the Debtors filed a petition for relief under Chapter 11 and its debt agreements are classified as Liabilities Subject to Compromise. From November 14, 2012 to December 31, 2012, interest expense of $9,395 was accordingly not recorded.

CONDENSED_COMBINED_FINANCIAL_S

CONDENSED COMBINED FINANCIAL STATEMENTS OF DEBTOR SUBSIDIARIES	12 Months Ended
	Dec. 31, 2013
Condensed Combined Financial Statements Of Debtor Subsidiaries [Abstract]	'
Condensed Combined Financial Statements Of Debtor Subsidiaries [Text Block]	'
	NOTE 22 — CONDENSED COMBINED FINANCIAL STATEMENTS OF DEBTOR SUBSIDIARIES:
	In accordance with ASC 852, aggregate financial information of the Debtors is presented below as of December 31, 2013 and 2012 and for the two years ended December 31, 2013. Intercompany transactions among the Debtors have been eliminated in the financial statements contained herein. Intercompany transactions among the Debtors and the Non-Filing Entities have not been eliminated in the Debtors’ combined financial statements.
		Total Combined Debtor Entities
	Combined Balance Sheet information at	December 31,		December 31,
		2013		2012
	ASSETS
	Current Assets:
	Cash and cash equivalents	$	585,907	$	471,726
	Voyage receivables		147,107		178,635
	Income taxes recoverable		3,941		-
	Other receivables		16,040		38,153
	Inventories		16,884		15,532
	Prepaid expenses and other current assets		27,808		40,070
	Deferred income taxes		5,464		-
	Total Current Assets		803,151		744,116
	Vessels and other property less accumulated depreciation		2,370,880		2,849,331
	Deferred drydock expenditures, net		57,248		74,418
	Total Vessels, Deferred Drydock and Other Property		2,428,128		2,923,749
	Investments in affiliated companies		323,327		252,098
	Intangible assets, less accumulated amortization		59,943		71,736
	Goodwill		-		9,668
	Investments in subsidiaries		147,921		147,921
	Pre and post-petition intercompany loans receivable and accrued interest		31,588		76,611
	Pre-petition intercompany receivables		2,244,406		2,233,404
	Post-petition intercompany receivables		15,819		927
	Other assets		26,896		26,767
	Total Assets	$	6,081,179	$	6,486,997
	LIABILITIES AND EQUITY
	Current Liabilities:
	Accounts payable, accrued expenses and other current liabilities	$	96,007	$	84,477
	Deferred income taxes		-		25,900
	Income taxes payable, including reserve for uncertain tax positions of		255,987		329,922
	$234,623 and $326,121
	Total Current Liabilities		351,994		440,299
	Reserve for uncertain tax positions		26,585		17,067
	Deferred gain on sale and leaseback of vessels		-		3,839
	Deferred income taxes		369,942		346,620
	Other liabilities		30,977		29,326
	Post-petition intercompany payables		48,677		47,075
	Liabilities subject to compromise, including pre-petition		5,041,334		4,811,562
	intercompany payables
	Total Liabilities		5,869,509		5,695,788
	Equity:
	Total Equity		211,670		791,209
	Total Liabilities and Equity	$	6,081,179	$	6,486,997
		Total Combined Debtor Entities
	Combined Statement of Operations for the years ended December 31,	2013		2012
	Shipping Revenues:
	Pool revenues	$	176,863	$	240,487
	Time and bareboat charter revenues		370,619		299,220
	Voyage charter revenues		468,406		583,253
	Sunoco termination fee		-		13,300
			1,015,888		1,136,260
	Operating Expenses:
	Voyage expenses		252,862		297,652
	Vessel expenses		266,016		283,858
	Charter hire expenses		206,780		368,298
	Depreciation and amortization		176,886		201,670
	General and administrative		69,106		66,544
	Severance and relocation		3,238		-
	Goodwill and other intangibles impairment charge		16,293		-
	Loss on disposal of vessels, including impairments		365,168		271,295
	Total Operating Expenses		1,356,349		1,489,317
Loss from Vessel Operations		-340,461		-353,057
Equity in Income of Affiliated Companies		40,894		33,486
Operating Loss		-299,567		-319,571
Other Expense		-16,130		-21,684
Loss before Interest Expense, Reorganization Items and		-315,697		-341,255
Income Taxes
Interest Expense		-350		-93,421
Loss before Reorganization Items and Income Taxes		-316,047		-434,676
Reorganization Items, net		-327,170		-41,113
Loss before Income Taxes		-643,217		-475,789
Income Tax Benefit		18,883		1,485
Net Loss	$	-624,334	$	-474,304
	Total Combined Debtors
Combined Statement of Cash Flows for the years ended December 31,	2013		2012
Cash Flows from Operating Activities:
Net loss	$	-624,334	$	-474,304
Items included in net loss not affecting cash flows:
Depreciation and amortization		176,886		201,670
Loss on write-down of vessels and other fixed assets		366,438		279,382
Goodwill and other intangibles write-down		16,293		-
Amortization of deferred gain on sale and leasebacks		42		-5,905
Amortization of debt discount and other deferred financing costs		-		3,198
Deferred financing costs write-off		-		12,540
Compensation relating to restricted stock and stock option grants		-131		7,076
Dedesignation of interest rate swap agreements		-		1,866
Deferred income tax benefit		-10,896		-30,065
Undistributed earnings of affiliated companies		-35,826		-22,771
Deferred payment obligations on charters-in		5,446		5,600
Reorganization items, non-cash		261,221		34,676
(Gain)/loss on sublease contracts		-896		895
Other – net		2,242		7,190
Items included in net loss related to investing and financing activities:
Loss on sale of securities and other investments – net		198		3,132
Gain on disposal of vessels – net		-1,270		-8,087
Payments for drydocking		-22,024		-45,990
Changes in operating assets and liabilities		-16,439		33,683
Net cash provided by operating activities		116,950		3,786
Cash Flows from Investing Activities:
Proceeds from sale of marketable securities and investments		459		12,979
Proceeds from the disposal of vessels		485		12,886
Expenditures for vessels and other property		-38,325		-54,625
Distributions from affiliated companies		2,097		6,608
Net change in intercompany loans due from non-debtors		44,564		-62,928
Other – net		724		564
Net cash provided by/(used in) investing activities		10,004		-84,516
Cash Flows from Financing Activities:
Purchases of treasury stock		-42		-307
Issuance of debt, net of issuance costs and deferred financing costs		-		572,000
Payments on debt, including adequate protection payments		-12,731		-63,990
Issuance of common stock upon exercise of stock options		-		68
Net cash provided by/(used in) financing activities		-12,773		507,771
Net increase in cash and cash equivalents		114,181		427,041
Cash and cash equivalents at beginning of year		471,726		44,685
Cash and cash equivalents at end of year	$	585,907	$	471,726

CONTINGENCIES

CONTINGENCIES	12 Months Ended
	Dec. 31, 2013
Commitments and Contingencies Disclosure [Abstract]	'
Commitments and Contingencies Disclosure [Text Block]	'
	NOTE 23 — CONTINGENCIES:
	The Company’s policy for recording legal costs related to contingencies is to expense such legal costs as incurred.
	Impact of the Chapter 11 Cases
	On November 14, 2012, the Company and 180 of its subsidiaries commenced the Chapter 11 Cases in the Bankruptcy Court.  Certain of the Company’s subsidiaries and affiliates (collectively, the “Non-Filing Entities”) did not file for relief under Chapter 11. The Debtors will continue to operate their businesses as “debtors-in-possession” under the jurisdiction of the Bankruptcy Court and in accordance with the applicable provisions of the Bankruptcy Code and the orders of the Bankruptcy Court.  The Non-Filing Entities will continue to operate in the ordinary course of business. As a result of the filing for relief under Chapter 11, litigation against the Debtors to recover pre-petition claims or to exercise control over the property of the Debtors’ bankruptcy estates is automatically stayed pursuant to the Bankruptcy Code. See Note 2, “Bankruptcy Filing and Going Concern,” to the accompanying consolidated financial statements for additional information.
	Class Action Lawsuits and Derivative Actions
	Shortly after the Company filed a Current Report on Form 8-K on October 22, 2012 disclosing that on October 19, 2012 the Audit Committee of the Board of Directors of the Company, on the recommendation of management, concluded that the Company’s previously issued financial statements for at least the three years ended December 31, 2011 and associated interim periods, and for the fiscal quarters ended March 31, 2012 and June 30, 2012, should no longer be relied upon, several putative class action suits were filed in federal court in the Southern District of New York against the Company, its then President and Chief Executive Officer, its then Chief Financial Officer, its then current and certain former members of its Board of Directors, its current independent registered public accounting firm, and underwriters of the Company’s public offering of notes in March 2010 (the “Offering”).  The Company’s former independent registered public accounting firm was later added as a defendant. Subsequent to the Company’s filing for relief under Chapter 11, these suits were consolidated and the plaintiffs filed an amended complaint that does not name the Company as a defendant. The consolidated suit is on behalf of purchasers of Company securities between March 1, 2010 and October 19, 2012 and purchasers of notes in the Offering.  The plaintiffs allege that documents that the Company filed with the SEC were defective, inaccurate and misleading, that the plaintiffs relied on such documents in purchasing the Company’s securities, and that, as a result, the plaintiffs suffered losses. The plaintiffs assert claims under the Securities Act of 1933 (the “Securities Act”) against all defendants and claims under the Securities Exchange Act of 1934 (the “Exchange Act”) against the former President and former Chief Financial Officer of the Company. The Bankruptcy Court stayed the consolidated suit against the individual defendants (the former President and former Chief Financial Officer of the Company and certain current and certain former directors of the Company), except with respect to certain motions to dismiss, through September 17, 2013, subject to the Company’s right to request further extensions. The Company has not sought such extension. On September 10, 2013, the district court in the Southern District of New York dismissed the claims against the former President and former Chief Financial Officer of the Company arising under the Exchange Act in the consolidated suit for failure to adequately allege scienter but granted plaintiffs leave to replead their Exchange Act claims within 30 days. The district court denied the motions to dismiss the claims against all defendants arising under the Securities Act. On October 10, 2013, the plaintiffs re-pleaded their Exchange Act claims against the former President and former Chief Financial Officer in a second amended complaint.
	On January 28, 2014, plaintiffs sought leave to further amend the Exchange Act claims in its complaint based on factual assertions contained in the motion to dismiss filed by the Company’s former primary outside counsel, Proskauer Rose LLP (“Proskauer”) on January 17, 2014 of the malpractice claims brought against it and four of its partners by the Company on November 18, 2013. On February 7, 2014, the district court granted the plaintiffs’ request and on February 18, 2014, the plaintiffs re-pleaded their Exchange Act claims in a third amended complaint.  On February 25, 2014, the former President and former Chief Financial Officer filed their response to the third amended complaint and on March 4, 2014 the plaintiffs filed their reply to the defendants’ response.
	Proskauer Action
	On February 23, 2014, Proskauer and four of its partners filed an action in the Supreme Court of the State of New York, County of New York, against the Senior Vice President, General Counsel and Secretary of the Company and the former Chief Financial Officer alleging that the defendants engaged in tortious and fraudulent conduct that caused significant harm to the plaintiffs and the Company.  The plaintiffs allege that the defendants made false representations and thereby deceived and misled Proskauer into providing legal advice to the Company, which was the subject of the Company’s malpractice suit against Proskauer and four of its partners filed on November 18, 2013 in the Bankruptcy Court. On February 21, 2014, the Bankruptcy Court declined to hear the Company’s malpractice claims under the doctrine of permissive abstention, and on March 11, 2014, the Company re-filed its malpractice claims against Proskauer and four of its partners in the Supreme Court of the State of New York.
	SEC Investigation
	On November 13, 2012, the Company received from the staff of the SEC a request for documents relating to the statements in the Company’s October 22, 2012 Form 8-K, to which the Company has responded. On January 29, 2013, the SEC issued a formal order of private investigation of the Company. The Company has produced documents in response to the SEC’s requests and intends to continue to cooperate fully with the SEC’s investigation.
	Legal Proceedings Arising in the Ordinary Course of Business
	The Company is a party, as plaintiff or defendant, to various suits in the ordinary course of business for monetary relief arising principally from personal injuries, collision or other casualty and to claims arising under charter parties. All such personal injury, collision or other casualty claims against the Company are covered by insurance (subject to deductibles not material in amount).  Each of the claims involves an amount which, in the opinion of management, is not material to the Company’s financial position, results of operations and cash flows.
	Excise Tax Case
	The IRS imposed penalties totaling approximately $3,500 against certain U.S. Flag vessel owning subsidiaries of the Company due to alleged delinquent excise tax registration applications and delinquent filing of information returns. The Company denied the applicability of the penalties in question and vigorously contested the matter with the IRS. As a result of certain administrative protocols, the Company had to pay the assessed penalties in order to formally file suit for a refund. The Company paid $3,500 in penalties during the year-ended December 31, 2011 and such amounts were included in other receivables in the accompanying consolidated balance sheets as of December 31, 2012. The Office of the Assistant Attorney General at the U.S. Department of Justice conceded in favor of the Company’s claims and determined that the Company was entitled to a full refund of amounts previously remitted as described above with accrued interest. Such refund, aggregating approximately $3,800 was received in October 2013.
	Environmental Incident
	On July 16, 2013, the Company received notification through its compliance reporting system that possible pollution violations from one of its Marshall Islands-flagged vessels had occurred. The report alleged that there had been improper discharges of bilge holding tank contents directly overboard and not, as required by Company policies and law, through the installed Oily Water Separator or to shore side reception facilities.
	On July 26, 2013, after conducting a preliminary investigation, the Company informed the Marshall Islands Maritime Administration (the “Flag State”) of potential violations of law and the Flag State commenced an investigation. The Company has cooperated with the Flag State preliminary investigation. On July 31, 2013, the Company voluntarily disclosed to the U.S. Coast Guard and the U.S. Department of Justice the results of the Company’s and the Flag State’s preliminary investigations, including possible improper discharges from the vessel’s bilge holding tank and apparent false entries in, or apparent omission of required entries from, the vessel’s Oil Record Book Part I while the vessel was in U.S. waters.  The Company is cooperating with the U.S. Coast Guard and Department of Justice in their investigations resulting from the voluntary disclosures. Any liabilities for potential fines or penalties that may be imposed in connection with this matter cannot be estimated as of December 31, 2013.

SUBSEQUENT_EVENTS

SUBSEQUENT EVENTS	12 Months Ended
	Dec. 31, 2013
Subsequent Events [Abstract]	'
Subsequent Events [Text Block]	'
	NOTE 24 — SUBSEQUENT EVENTS:
	Costs Associated with Exit or Disposal Activities
	On January 13, 2014, the Company announced that certain subsidiaries of OSG that own or charter-in 33 vessels in OSG’s International Flag fleet (“Core International Flat Fleet”) intend to outsource certain management services, including, but not limited to, the technical management, certain aspects of commercial management and crew management of the Core International Flag Fleet to V. Ships UK Limited (“V. Ships”). OSG expects to incur approximately $34,000 in total expenses related to the transition to the outsourcing arrangement. Of this estimated $34,000 amount, approximately $21,000 is expected to be related to employee transition and termination benefits and similar transition and termination costs, and approximately $13,000 is expected to be related to set-up, wind-down and transitions costs. The estimates contained herein are subject to uncertainty.
	In conjunction with the aforementioned, on January 7, 2014, the Board of Directors of OSG (the “Board”) and the Compensation Committee of the Board approved a transitional incentive program for certain non-executive employees (the “Transition NEIP”). In order to achieve the restructuring described above, the Company requires the commitment of the employees whose responsibilities will ultimately be outsourced or rendered unnecessary by virtue of the outsourcing (the “Transitional Employees”). The Transition NEIP is a broad based plan intend to offer compensation incentives to substantially all of the non-executive Transitional Employees (the “Eligible Employees”) upon the achievement of specific objectives (“Objectives”) related to the operations and restructuring of OSG’s international operations. For Eligible Employees, the annualized target awards range from 25% to  75% of base salary. The total estimated cost of the incentive payments to be offered under the Transition NEIP, assuming all Eligible Employees participate and all of the Objectives are timely achieved, is $5,000. The Transition NEIP also includes approximately $ 1,000 to be allocated among Transition NEIP participants as needed based on personnel attrition, assumption of additional responsibilities, or other relevant events as determined by the Company. On this basis the total estimated cost of the Transition NEIP is $6,000, which is a component of the $21,000 of the employee transition and termination benefits and similar transition and termination costs described above. The Transition NEIP was subject to the approval of the Bankruptcy Court, which was received on February 3, 2014.
	Plan Support Agreement
	On February 12, 2014, the Debtors entered into a plan support agreement (as amended, the “Plan Support Agreement”) among the Debtors and certain of the lenders (the “Consenting Lenders”) holding an aggregate of approximately 60% of amounts outstanding under the Company’s Unsecured Revolving Credit Facility. The Plan Support Agreement requires the Consenting Lenders to support and vote in favor of a proposed plan of reorganization of the Debtors (the “Plan”) consistent with the terms and conditions set forth in the term sheet attached as an exhibit to and incorporated into the Plan Support Agreement (as amended, the “Term Sheet”).
	As a result of additional lenders acceding to the Plan Support Agreement, as of February 27, 2014, lenders holding approximately 72% of amounts outstanding under the Unsecured Revolving Credit Facility are now Consenting Lenders. On February 27, 2014, the Debtors and the Consenting Lenders entered into an amendment to the Plan Support Agreement (the “Amendment”). The Amendment increases the amount to be raised by the Company through the rights offering and exit financing contemplated by the Plan Support Agreement as further described below.
	The Term Sheet, provides, among other things, that pursuant to the Plan, creditors’ allowed non-subordinated claims against the Debtors other than claims under the Unsecured Revolving Credit Facility, will be paid in full, in cash, including post-petition interest, and holders of equity interests and claims subordinated pursuant to section 510(b) of the Bankruptcy Code would receive a combination of shares of one class of common stock, par value $0.001 per share issued by reorganized OSG (the “Reorganized OSG Stock”) and warrants with an exercise price of $0.01 issued by reorganized OSG to holders of claims that do not comply with the Jones Act citizenship requirements but are otherwise entitled to receive Reorganized OSG Stock under the plan (the “Reorganized OSG Jones Act Warrants”) valued at $61,400, subject to dilution on account of a management and director incentive program and the Rights Offering (as defined below). Under the Plan reflected in the Term Sheet, holders of claims arising out of the Unsecured Revolving Credit Facility will receive their pro rata share of stock and warrants of the reorganized OSG. In addition, the Term Sheet provides that under the Plan, the 7.50% Unsecured Senior Notes due in 2024 issued by OSG and the 8.125% Unsecured Senior Notes due in 2018 issued by OSG will be reinstated, following payment of outstanding interest.
	The Term Sheet further provides that pursuant to the Plan, the Company will raise $300,000 through a rights offering (the “Rights Offering”) of  Reorganized OSG Stock and Reorganized OSG Jones Act Warrants to the holders of claims arising out of the Unsecured Revolving Credit Facility, which Rights Offering will be back-stopped by the Consenting Lenders or their designees. The Plan further contemplates that the Company will raise $735,000 in secured exit financing. The proceeds of the Rights Offering and such exit financing will enable the Debtors to satisfy the secured claims of DSF and CEXIM in full, in cash. As a result, the Debtors will withdraw their previously-announced motion for authorization to sell the vessels over which CEXIM has security interests. The Plan Support Agreement, as amended, remains subject to the approval of the Bankruptcy Court.
	On February 28, 2014, the Debtors and the Consenting Lenders (each Consenting Lender, a “Commitment Party”) entered into an equity commitment agreement dated February 28, 2014 (the “Equity Commitment Agreement”) setting forth, among other things, the terms of the Rights Offering. Under the Rights Offering, each lender who is the beneficial owner of claims arising out of the Unsecured Revolving Credit Facility as of the date specified in the procedures with respect to the Rights Offering (the “Rights Offering Procedures”, the form of which are set forth in the Equity Commitment Agreement) that are approved by the Bankruptcy Court (each such lender, an “Eligible Participant”) will be offered the right to purchase up to its  pro rata  share of Reorganized OSG Stock and Reorganized OSG Jones Act Warrants for $19.51 per share or warrant. Each Eligible Participant will also be offered the right to purchase Reorganized OSG Stock and Reorganized OSG Jones Act Warrants in an oversubscription rights offering, subject to certain limitations and caps, in the event that other Eligible Participants do not elect to purchase their  pro rata  share of Reorganized OSG Stock and Reorganized OSG Jones Act Warrants in connection with the Rights Offering (such rights, the “Unsubscribed Rights”). To ensure that OSG raises $300 million in connection with the Rights Offering, the Equity Commitment Agreement further provides that each Commitment Party has committed to subscribe for any Unsubscribed Rights in proportion to its Subscription Commitment Percentage (as defined in the Equity Commitment Agreement). Subject to Bankruptcy Court’s approval, in consideration for entering into this commitment, the Commitment Parties will receive (i) a fee paid promptly following the effective date of the Plan allocated among the Commitment Parties, at each Commitment Party’s option, either in the form of (x) shares or warrants of reorganized OSG, equal to 5% of the aggregate amount raised in the Rights Offering or (y) the cash equivalent thereof and (ii) reimbursement of all reasonably documented out-of-pocket costs and expenses. If the transactions contemplated by the Equity Commitment Agreement are consummated, OSG will use the proceeds of the sale of the Reorganized OSG Stock and Reorganized OSG Jones Act Warrants to fund payments under the Plan. Among other things, these proceeds will enable the Debtors to retain the vessels pledged to secure the claims of CEXIM and DSF, which claims will be repaid in full in cash.  The Equity Commitment Agreement remains subject to the approval of the Bankruptcy Court.
	The Consenting Lenders may terminate the Plan Support Agreement under certain circumstances, including, but not limited to, if the Debtors fail to achieve certain milestones for seeking confirmation and effectiveness of the Plan within certain time periods specified in the Plan Support Agreement including, inter alia, filing a Plan and disclosure statement with the Bankruptcy Court by March 7, 2014, the entry of an order by the Bankruptcy Court approving the disclosure statement by May 16, 2014 and the entry of an order by the Bankruptcy Court confirming the Plan by June 20, 2014.
	The Debtors may terminate the Plan Support Agreement under certain circumstances, including, but not limited to, if the Debtors, in the exercise of their fiduciary duty, (i) reasonably determine that the Plan is not in the best interests of the Debtors’ estates or (ii) receive an unsolicited proposal for an alternative plan that the Debtors reasonably determine to be more favorable to the Debtors’ estates than the Plan.

SUMMARY_OF_SIGNIFICANT_ACCOUNT1

SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Policies)	12 Months Ended
	Dec. 31, 2013
Accounting Policies [Abstract]	'
Cash and Cash Equivalents, Policy [Policy Text Block]	'
	1	Cash and cash equivalents—Interest-bearing deposits that are highly liquid investments and have a maturity of three months or less when purchased are included in cash and cash equivalents. Approximately $20,500 and $3,100 of cash and cash equivalents in the consolidated balance sheets as of December 31, 2013 and 2012, respectively, is restricted for the general operations of 15 vessels pledged as collateral under secured term loans. See Note 11, “Debt,” for a further discussion of Secured Term Loans.
Marketable Securities, Policy [Policy Text Block]	'
	2	Marketable securities—The Company’s investments in marketable securities are classified as trading and available-for-sale and are carried at fair value. The Company utilizes the first-in, first-out method to determine the cost of marketable securities sold or the amount reclassified out of accumulated other comprehensive loss into earnings. Net unrealized gains or losses on available-for-sale securities are reported as a component of accumulated other comprehensive loss within equity. If a material decline in the fair value below the Company’s cost basis is determined to be other than temporary on available-for-sale securities, a noncash impairment loss is recorded in the statement of operations in the period in which that determination is made. As a matter of policy, the Company evaluates all material declines in fair value for impairment whenever the fair value of a security classified as available-for-sale has been below its cost basis for more than six consecutive months. In the period in which a decline in fair value is determined to be other than temporary, the carrying value of that security is written down to its fair value at the end of such period, thereby establishing a new cost basis. Unrealized holding gains and losses on investments in marketable securities that are classified as trading securities are included in other income on the consolidated statement of operations.
Inventory, Policy [Policy Text Block]	'
	3	Inventories—Inventories, which consists principally of fuel, are stated at cost determined on a first-in, first-out basis.
Property, Plant and Equipment, Policy [Policy Text Block]	'
	4	Vessels, deferred drydocking expenditures and other property—Vessels are recorded at cost and are depreciated to their estimated salvage value on the straight-line basis over the lives of the vessels, which are generally 25 years. Each vessel’s salvage value is equal to the product of its lightweight tonnage and an estimated scrap rate of $300 per ton.
		Other property, including buildings and leasehold improvements, are recorded at cost and amortized on a straight-line basis over the shorter of the terms of the leases or the estimated useful lives of the assets, which range from three to 35 years.
		Interest costs are capitalized to vessels during the period that vessels are under construction. Interest capitalized aggregated $0 in 2013, $1,060 in 2012 and $6,767 in 2011.
		Expenditures incurred during a drydocking are deferred and amortized on the straight-line basis over the period until the next scheduled drydocking, generally two and a half to five years. The Company only includes in deferred drydocking costs those direct costs that are incurred as part of the drydocking to meet regulatory requirements, or are expenditures that add economic life to the vessel, increase the vessel’s earnings capacity or improve the vessel’s efficiency. Direct costs include shipyard costs as well as the costs of placing the vessel in the shipyard. Expenditures for normal maintenance and repairs, whether incurred as part of the drydocking or not, are expensed as incurred.
Impairment or Disposal of Long-Lived Assets, Policy [Policy Text Block]	'
	5	Impairment of long-lived assets—The carrying amounts of long-lived assets held and used by the Company are reviewed for potential impairment whenever events or changes in circumstances indicate that the carrying amount of a particular asset may not be fully recoverable. In such instances, an impairment charge would be recognized if the estimate of the undiscounted future cash flows expected to result from the use of the asset and its eventual disposition is less than the asset’s carrying amount. This assessment is made at the individual vessel level since separately identifiable cash flow information for each vessel is available. The impairment charge, if any, would be measured as the amount by which the carrying amount of a vessel exceeded its fair value. If using an income approach in determining the fair value of a vessel, the Company will consider the discounted cash flows resulting from highest and best use of the vessel asset from a market-participant’s perspective. Alternatively, if using a market approach, the Company will obtain third party appraisals of the estimated fair value of the vessel. A long-lived asset impairment charge results in a new cost basis being established for the relevant long-lived asset. See Note 7, “Vessels, Deferred Drydock and Other Property,” for further discussion on the impairment charges recognized during the three years ended December 31, 2013.
Goodwill and Intangible Assets, Policy [Policy Text Block]	'
	6	Goodwill and intangible assets—Goodwill and indefinite lived intangible assets acquired in a business combination are not amortized but are reviewed for impairment annually or more frequently if impairment indicators arise. Intangible assets with estimable useful lives are amortized over their estimated useful lives and are reviewed for potential impairment whenever events or changes in circumstances indicate that the carrying amount of the intangible may be impaired.
		The Company’s intangible assets consist primarily of long-term customer relationships acquired as part of the 2006 purchase of Maritrans, Inc. and the 2007 purchase of the Heidmar Lightering business. The long-term customer relationships are being amortized on a straight-line basis over 20 years. The Company recorded an impairment charge on the goodwill and intangible assets relating to the Heidmar Lightering business. See Note 10, “Goodwill and Intangible Assets,” for further discussion on impairment charges recognized during the year ended December 31, 2013.
Accounting For Debt Financing Costs [Policy Text Block]	'
	7	Deferred finance charges—Finance charges incurred in the arrangement of debt are deferred and amortized to interest expense on the straight-line basis over the life of the related debt. Prior to November 14, 2012, deferred finance charges were included in Other Assets in the consolidated balance sheet. On November 14, 2012, amortization ceased on $10,517 of deferred financing costs relating to the Unsecured Senior Notes, the $1,500,000 Unsecured Revolving Credit facility and the secured term loans, when such indebtedness and the related deferred financing costs were reclassified to Liabilities Subject to Compromise in the consolidated balance sheets (See Note 11, “Debt”). For the year ended December 31, 2013 and for the period from November 14, 2012 to December 31, 2012, the Company did not record $2,247 and $445 of interest expense relating to the amortization of deferred financing costs relating to the Unsecured Senior Notes, the $1,500,000 Unsecured Revolving Credit facility and the Secured Term Loans, which would have been incurred had the indebtedness not been reclassified. Interest expense relating to the amortization of deferred financing costs amounted to $0 in 2013, $15,260 in 2012 and $3,023 in 2011. The 2012 interest expense includes the write-off of $12,540 in deferred financing costs relating to the $900,000 Unsecured Forward Start credit facility as the Company’s Chapter 11 filing effectively terminated this credit facility agreement.
		See Note 11, “Debt,” for information relating to the December 2013 write-off of $4,603 of deferred amortization costs classified as liabilities subject to compromise.
Revenue And Expense Recognition [Policy Text Block]	'
	8	Revenue and expense recognition—Revenues from time charters and bareboat charters are accounted for as operating leases and are thus recognized ratably over the rental periods of such charters, as service is performed. Voyage revenues and expenses are recognized ratably over the estimated length of each voyage, calculated on a discharge-to-discharge basis and, therefore, are allocated between reporting periods based on the relative transit time in each period. The impact of recognizing voyage expenses ratably over the length of each voyage is not materially different on a quarterly and annual basis from a method of recognizing such costs as incurred. OSG does not begin recognizing voyage revenue until a Charter has been agreed to by both the Company and the customer, even if the vessel has discharged its cargo and is sailing to the anticipated load port on its next voyage.
		Under voyage charters, expenses such as fuel, port charges, canal tolls, cargo handling operations and brokerage commissions are paid by the Company whereas, under time and bareboat charters, such voyage costs are paid by the Company’s customers.
		For the Company’s vessels operating in pools, revenues and voyage expenses are pooled and allocated to each pool’s participants on a time charter equivalent (“TCE”) basis in accordance with an agreed-upon formula. Such TCE revenues are reported as pool revenues in the accompanying consolidated statement of operations. For the pools in which the Company participates, management monitors, among other things, the relative proportion of the Company’s vessels operating in each of the pools to the total number of vessels in each of the respective pools, and assesses whether or not OSG’s participation interest in each of the pools is sufficiently significant so as to determine that OSG has effective control of the pool. Management determined that as of June 30, 2013, it had effective control of one of the pools in which the Company participates. Such pool is not a legal entity but operates under a contractual arrangement. Therefore effective, July 1, 2013, the Company’s consolidated statement of operations reports allocated TCE revenues for such pool on a gross basis as voyage charter revenues and voyage expenses. The impact of this method of presenting earnings from this pool was an increase in voyage charter revenues and voyage expenses of $70,817 for the year ended December 31, 2013.
Concentration Risk, Credit Risk, Policy [Policy Text Block]	'
	9	Concentration of Credit Risk—Financial instruments that potentially subject the Company to concentrations of credit risk are voyage receivables due from charterers and pools in which the Company participates. With respect to voyage receivables, the Company limits its credit risk by performing ongoing credit evaluations. Voyage receivables reflected in the consolidated balance sheets as of December 31, 2013 and 2012 are net of an allowance for doubtful accounts of $2,024 and $2,846, respectively. The provisions for doubtful accounts for the years ended December 31, 2013, 2012 and 2011 were not material.
		During the three years ended December 31, 2013, the Company did not have any individual customers who accounted for 10% or more of its revenues apart from the pools in which it participates. The pools in which the Company participates accounted for 58% and 59% of consolidated voyage receivables at December 31, 2013 and 2012, respectively.
Derivatives, Policy [Policy Text Block]	'
	10	Derivatives—ASC 815, Derivatives and Hedging, requires the Company to recognize all derivatives on the balance sheet at fair value. Derivatives that are not effective hedges must be adjusted to fair value through earnings. If the derivative is an effective hedge, depending on the nature of the hedge, a change in the fair value of the derivative is either offset against the change in fair value of the hedged item (fair value hedge), or recognized in other comprehensive income/(loss) and reclassified into earnings in the same period or periods during which the hedge transaction affects earnings (cash flow hedge). The ineffective portion (that is, the change in fair value of the derivative that does not offset the change in fair value of the hedged item) of an effective hedge and the full amount of the change in fair value of derivative instruments that do not qualify for hedge accounting are immediately recognized in earnings.
		During the year ended December 31, 2013, no ineffectiveness gains or losses were recorded in earnings relative to interest rate swaps entered into by the Company or its subsidiaries that qualified for hedge accounting. Any gain or loss realized upon the early termination of an interest rate swap is recognized as an adjustment of interest expense over the shorter of the remaining term of the swap or the hedged debt. See Note 12, “Fair Value of Financial Instruments, Derivatives and Fair Value Disclosures,” for additional disclosures on the Company’s interest rate swaps and other financial instruments.
Income Tax, Policy [Policy Text Block]	'
	11	Income taxes—The Company accounts for income taxes under the asset and liability method, which requires the recognition of deferred tax assets and liabilities for the expected future tax consequences of events that have been included in the financial statements. Under this method, deferred tax assets and liabilities are determined based on the differences between the financial statements and tax basis of assets and liabilities using enacted tax rates in effect for the year in which the differences are expected to reverse. The effect of a change in tax rates on deferred tax assets and liabilities is recognized in income in the period that includes the enactment date.
		Net deferred tax assets are recorded to the extent the Company believes these assets will more likely than not be realized. In making such a determination, all available positive and negative evidence is considered, including future reversals of existing taxable temporary differences, projected future taxable income, tax-planning strategies, and results of recent operations. In the event OSG were to determine that it would be able to realize its deferred income tax assets in the future in excess of their net recorded amount, an adjustment would be made to the deferred tax asset valuation allowance, which would reduce the provision for income taxes in the period such determination is made.
		Uncertain tax positions are recorded in accordance with ASC 740, Income Taxes, on the basis of a two-step process whereby (1) the Company first determines whether it is more likely than not that the tax positions will be sustained based on the technical merits of the position and (2) those tax positions that meet the more-likely-than-not recognition threshold, the Company recognizes the largest amount of tax benefit that is greater than 50% likely to be realized upon ultimate settlement with the related tax authority.
Use of Estimates, Policy [Policy Text Block]	'
	12	Use of estimates—The preparation of financial statements in conformity with accounting principles generally accepted in the U.S. requires management to make estimates and assumptions that affect the amounts of assets, liabilities, equity, revenues and expenses reported in the financial statements and accompanying notes. The most significant estimates relate to the depreciation of vessels and other property, amortization of drydocking costs, estimates used in assessing the recoverability of goodwill, intangible and other long-lived assets, liabilities incurred relating to pension benefits, liabilities subject to compromise and income taxes. Actual results could differ from those estimates.
Consolidation, Subsidiary Stock Issuances, Policy [Policy Text Block]	'
	13	Issuance of shares or units by subsidiaries—The Company accounts for gains or losses from the issuance of shares or units by its subsidiaries as an adjustment to equity.
New Accounting Pronouncements, Policy [Policy Text Block]	'
	14	Recently adopted accounting standards—In February 2013, the FASB issued ASU 2013-02, Reporting of Amounts Reclassified Out of Accumulated Other Comprehensive Income, which adds new disclosure requirements, intended to improve the transparency of changes in other comprehensive income and items reclassified out of accumulated other comprehensive income/(loss). This guidance, which is to be applied prospectively, was effective for the Company’s annual and interim periods beginning January 1, 2013. The adoption of this accounting standard resulted in a change in the presentation of disclosures relating to accumulated other comprehensive income/(loss).
New Accounting Standards [Policy Text Block]	'
	15	Newly issued accounting standards— In February 2013, the FASB also issued ASU No. 2013-04, Obligations Resulting from Joint and Several Liability Arrangements for Which the Total Amount of the Obligation is Fixed at the Reporting Date, to address the diversity in practice in accounting for joint and several liabilities. The standard addresses the recognition, measurement, and disclosure of obligations resulting from joint and several liability arrangements for which the total amount under the arrangement is fixed at the reporting date. An entity would measure its obligation from a joint and several liability arrangement as the sum of the amount the entity agreed with its co-obligors that it will pay, and any additional amount the entity expects to pay on behalf of its co-obligors. The standard is effective for public companies for fiscal years, and interim periods within those fiscal years, beginning after December 15, 2013. Early application is permitted. OSG does not believe the adoption of the new accounting guidance will have a significant impact on its consolidated financial statements.
		In July 2013, the FASB issued ASU No. 2013-11, Presentation of an Unrecognized Tax Benefit When a Net Operating Loss Carryforward, a Similar Tax Loss, or a Tax Credit Carryforward Exists, to address the diversity in practice in presenting unrecognized tax benefits on the balance sheet. The standard provides explicit guidance requiring that an unrecognized tax benefit, or a portion of an unrecognized tax benefit, be presented in the financial statements as a reduction to a deferred tax asset for a net operating loss carryforward, a similar tax loss, or a tax credit carryforward, except when certain circumstances enumerated in the standard exist. The required presentation should better reflect the manner in which an entity would settle at the reporting date any additional income taxes that would result from the disallowance of a tax position when net operating loss carryforwards, similar tax losses or tax carryforwards exist. The amendments in this update are effective for public companies for fiscal years, and interim periods within those fiscal years, beginning after December 15, 2013. Early adoption is permitted. OSG does not believe the adoption of the new accounting guidance will have a significant impact on its consolidated financial statements.

LIABILITIES_SUBJECT_TO_COMPROM1

LIABILITIES SUBJECT TO COMPROMISE AND REORGANIZATION ITEMS (Tables)	12 Months Ended
	Dec. 31, 2013
Liabilities Subject To Compromise and Reorganization Items [Abstract]	'
Liabilities Subject To Compromise Consist [Table Text Block]	'
	Liabilities Subject to Compromise consist of the following:
	As of December 31,	2013		2012
	Prepetition accounts payable and other accrued liabilities	$	4,565	$	2,717
	Secured long-term debt and accrued interest		569,408		577,957
	Unsecured senior notes		500,780		500,780
	Unsecured revolving credit facility		1,489,000		1,488,579
	Accrued interest and fees on unsecured revolving credit facility and senior notes		10,878		10,878
	Derivative liabilities		3,566		3,566
	Accrued liabilities relating to rejected executory contracts		282,599		30,539
	Pension and other postretirement benefit plan liabilities		27,377		37,521
	Total Liabilities Subject to Compromise	$	2,888,173	$	2,652,537
Estimated Claims on Rejected Executory Contracts [Table Text Block]	'
	The following table summarizes activity related to the reserve for rejected executory contracts component of liabilities subject to compromise for the years ended December 31, 2013 and 2012.
		Reserve for estimated claims on rejected
		executory contracts
		2013		2012
	Balance at January 1,	$	30,539	$	-
	Original provision		180,505		30,187
	Change in estimate - prior year's provision		8,068		-
	Change in estimate - current year's provision		60,266		-
	Other liabilities relating to rejected executory contracts		3,221		352
	Balance at December 31,	$	282,599	$	30,539
Reorganization Items Net [Table Text Block]	'
	Reorganization items, net represent amounts incurred subsequent to the bankruptcy filing as a direct result of the filing of the Chapter 11 Cases and are comprised of the following:
	For the year ended December 31,	2013		2012
	Trustee fees	$	3,006	$	672
	Professional fees		62,823		7,889
	Provision for estimated claims on rejected executory contracts		248,839		30,187
	Expenses incurred on rejected executory contracts		7,683		2,365
	Write-off of deferred financing costs		4,603		-
	Other claims adjustments		216		-
		$	327,170	$	41,113

EARNINGS_PER_COMMON_SHARE_Tabl

EARNINGS PER COMMON SHARE (Tables)	12 Months Ended
	Dec. 31, 2013
Earnings Per Share [Abstract]	'
Schedule of Calculation of Numerator and Denominator in Earnings Per Share [Table Text Block]	'
	The components of the calculation of basic earnings per share and diluted earnings per share are as follows:
	For the year ended December 31,	2013		2012		2011
	Net loss	$	-638,230	$	-480,114	$	-201,363
	Common shares outstanding, basic and diluted:
	Weighted average shares outstanding, basic and diluted		30,482,818		30,339,258		30,228,441

BUSINESS_AND_SEGMENT_REPORTING1

BUSINESS AND SEGMENT REPORTING (Tables)	12 Months Ended
	Dec. 31, 2013
Segment Reporting [Abstract]	'
Schedule of Segment Reporting Information, by Segment [Table Text Block]	'
	Information about the Company’s reportable segments as of and for each of the years in the three year period ended December 31, 2013 follows:
		International
		Crude		Product
		Tankers		Carriers		Other		U.S.		Totals
	2013
	Shipping revenues	$	352,871	$	223,789	$	3,286	$	436,050	$	1,015,996
	Time charter equivalent revenues		209,876		146,711		3,225		403,516		763,328
	Depreciation and amortization		76,086		29,465		2,818		67,907		176,276
	Gain/(loss) on disposal of vessels, including		-328,146		-38,395		117		1,167		-365,257
	impairments
	Goodwill and other intangibles impairment charge		-16,214		-		-		-		-16,214
	Income/(loss) from vessel operations		-17,806		22,077		-3,104		113,866		115,033
	Equity in income of affiliated companies		29,746		-		7,542		3,606		40,894
	Investments in affiliated companies at		271,009		4,505		44,278		3,535		323,327
	December 31, 2013
	Total assets at December 31, 2013		1,356,796		544,062		44,591		1,061,866		3,007,315
	Expenditures for vessels		26,106		7,607		-3		2,667		36,377
	Payments for drydockings		8,003		2,270		-		11,751		22,024
	2012
	Shipping revenues		343,541		331,634		10,156		451,803		1,137,134
	Time charter equivalent revenues		256,843		171,881		10,071		402,051		840,846
	Depreciation and amortization		83,558		43,239		5,392		69,095		201,284
	Gain/(loss) on disposal of vessels,		-102,242		-160,706		8,085		-16,496		-271,359
	including impairments
	Income/(loss) from vessel operations		-70,909		-59,111		-4,243		118,397		-15,866
	Equity in income of affiliated companies		18,658		-		11,378		3,450		33,486
	Investments in affiliated companies at		241,198		6,000		1,700		3,500		252,398
	December 31, 2012
	Total assets at December 31, 2012		1,739,740		620,731		2,333		1,123,368		3,486,172
	Expenditures for vessels		33,488		18,563		6		547		52,604
	Payments for drydockings		20,063		7,166		-		18,761		45,990
	2011
	Shipping revenues		337,137		321,322		13,285		377,787		1,049,531
	Time charter equivalent revenues		266,429		178,823		13,228		331,721		790,201
	Depreciation and amortization		74,392		35,385		5,809		64,135		179,721
	Gain/(loss) on disposal of vessels		673		-71		-29		1,487		2,060
	Income/(loss) from vessel operations		-71,033		-42,021		-828		52,812		-61,070
	Equity in income/(loss) of affiliated companies		8,985		-		7,157		4,413		20,555
	Investments in affiliated companies at		211,406		3,855		12,669		4,440		232,370
	December 31, 2011
	Total assets at December 31, 2011		1,848,531		878,884		22,395		1,125,634		3,875,444
	Expenditures for vessels		45,654		79,492		-		62,364		187,510
	Payments for drydockings		16,600		14,166		-		16,594		47,360
Reconciliation of Revenue from Segments to Consolidated [Table Text Block]	'
	Reconciliations of time charter equivalent revenues of the segments to shipping revenues as reported in the consolidated statements of operations follow:
	For the year ended December 31,	2013		2012		2011
	Time charter equivalent revenues	$	763,328	$	840,846	$	790,201
	Add: Voyage expenses		252,668		296,288		259,330
	Shipping revenues	$	1,015,996	$	1,137,134	$	1,049,531
Reconciliation of Operating Profit (Loss) from Segments to Consolidated [Table Text Block]	'
	Reconciliations of income/(loss) from vessel operations of the segments to loss before reorganization items and income taxes, as reported in the consolidated statements of operations follow:
	For the year ended December 31,	2013		2012		2011
	Total income/(loss) from vessel operations of all segments	$	115,033	$	-15,866	$	-61,070
	General and administrative expenses		-97,663		-88,845		-83,178
	Severance and relocation costs		-3,097		-3,163		-
	Goodwill and other intangibles impairment charge		-16,214		-		-
	(Loss)/gain on disposal of vessels, including impairments		-365,257		-271,359		2,060
	Consolidated loss from vessel operations		-367,198		-379,233		-142,188
	Equity in income of affiliated companies		40,894		33,486		20,555
	Other income/(expense)		849		-1,314		2,154
	Interest expense		-350		-93,421		-79,898
	Loss before reorganization items and income taxes	$	-325,805	$	-440,482	$	-199,377
Reconciliation of Assets from Segment to Consolidated [Table Text Block]	'
	Reconciliations of total assets of the segments to amounts included in the consolidated balance sheets follow:
	At December 31,	2013		2012
	Total assets of all segments	$	3,007,315	$	3,486,172
	Corporate cash and securities		601,927		507,342
	Other unallocated amounts		35,252		50,021
	Consolidated total assets	$	3,644,494	$	4,043,535
Revenue Source and Long Lived Assets Deployment by Segment [Table Text Block]	'
	Certain additional information about the Company’s operations for each of the years in the three year period ended December 31, 2013 follows:
		Consolidated		International		U.S.
	2013
	Shipping revenues	$	1,015,996	$	579,946	$	436,050
	Total vessels, deferred drydock and other property at December 31, 2013		2,416,600		1,459,220		957,380
	2012
	Shipping revenues		1,137,134		685,331		451,803
	Total vessels, deferred drydock and other property at December 31, 2012		2,911,706		1,902,728		1,008,978
	2011
	Shipping revenues		1,049,531		671,744		377,787
	Total vessels, deferred drydock and other property at December 31, 2011		3,292,946		2,293,011		999,935

VESSELS_DEFERRED_DRYDOCK_AND_O1

VESSELS, DEFERRED DRYDOCK AND OTHER PROPERTY (Tables)	12 Months Ended
	Dec. 31, 2013
Property, Plant and Equipment [Abstract]	'
Property, Plant and Equipment [Table Text Block]	'
	Vessels and other property consist of the following:
	As of December 31,		2013			2012
	Vessels, at cost	$	2,784,023		$	3,307,813
	Accumulated depreciation		-495,391			-591,256
	Vessels, net		2,288,632			2,716,557
	Construction in progress		54,644			95,283
	Other property, at cost		45,633			71,306
	Accumulated depreciation and amortization		-29,557			-45,858
	Other property, net		16,076			25,448
	Total Vessels and other property	$	2,359,352		$	2,837,288
Schedule Of Property Plant And Equipment By Segment [Table Text Block]	'
	A breakdown of the carrying value of the Company’s vessels, excluding construction in progress, by reportable segment and fleet as of December 31, 2013 and 2012 follows:
	As of December 31, 2013
									Net				Average	Number of
					Accumulated				Carrying				Vessel Age	Owned
		Cost			Depreciation				Value				(by dwt)	Vessels
	International Flag Crude Tankers
	VLCCs (includes ULCC)	$	722,863		$	-164,911			$	557,952	-1		10.5	11
	Aframaxes (includes OSG Lightering fleet)		279,506			-57,403				222,103	-2		10.7	9
	Panamaxes		145,168			-				145,168			11.1	9
	Total International Flag Crude Tankers		1,147,537			-222,314				925,223			10.6	29
	International Flag Product Carriers
	Panamax		196,470			-31,856				164,614			5.1	4
	Handysize		289,276			-26,063				263,213			8.2	13
	Total International Flag Product Carriers		485,746			-57,919				427,827	-3		7.2	17
	Total U.S. Flag Vessels (4)		1,150,740			-215,158				935,582			7.2	15
	Fleet Total	$	2,784,023		$	-495,391			$	2,288,632			9.8	61
	(1)Includes five VLCCs that are pledged as collateral under secured term loans due through 2020 and 2023, as discussed in Note 11, "Debt," with an aggregate carrying value of $343,590.
	(2)Includes three Aframaxes that are pledged as collateral under secured term loans due through 2020 and 2023, as discussed in Note 11, "Debt," with an aggregate carrying value of $78,462.
	(3)Includes five Handysize Product Carriers and two Panamax Product Carriers that are pledged as collateral under secured term loans due through 2020, as discussed in Note 11, "Debt," with an aggregate carrying value of $143,880.
	(4)Includes one International Flag Handysize Product Carrier that is owned by a U.S. domiciled corporation.
	As of December 31, 2012
							Net			Average		Number of
				Accumulated			Carrying			Vessel Age		Owned
		Cost		Depreciation			Value			(by dwt)		Vessels
	International Flag Crude Tankers
	VLCCs (includes ULCC)	$	869,186	$	-157,359		$	711,827		9.5		11
	Suezmaxes		734		-450		$	284		N/A		-
	Aframaxes (includes OSG Lightering fleet)		279,947		-69,321		$	210,626		11		8
	Panamaxes		467,984		-149,874		$	318,110		10.1		9
	Total International Flag Crude Tankers		1,617,851		-377,004			1,240,847		9.8		28
	International Flag Product Carriers
	Panamax		249,028		-33,078			215,950		4.1		4
	Handysize		290,055		-13,672			276,383		7.2		13
	Total International Flag Product Carriers		539,083		-46,750			492,333		6.2		17
	Total U.S. Flag Vessels		1,150,879		-167,502			983,377		6.2		15
	Fleet Total	$	3,307,813	$	-591,256		$	2,716,557		9		60
Vessels [Member]	'
Property, Plant and Equipment [Abstract]	'
Schedule Of Property Plant And Equipments [Table Text Block]	'
	Vessel activity, excluding construction in progress, for the three years ended December 31, 2013 is summarized as follows:
					Accumulated				Net Book
		Vessel Cost			Depreciation				Value
	Balance at December 31, 2010	$	3,045,023		$	-686,055			$	2,358,968
	Purchases and vessel additions		38,203			-
	Transfers from construction in progress		710,793			-
	Disposals and transfers to held for sale		-17,675			7,523
	Depreciation		-			-140,023
	Balance at December 31, 2011		3,776,344			-818,555				2,957,789
	Purchases and vessel additions		7,983			-
	Transfers from construction in progress		189,105			-
	Disposals		-29,653			25,104
	Depreciation		-			-154,997
	Impairment		-635,966			357,192
	Balance at December 31, 2012		3,307,813			-591,256				2,716,557
	Purchases and vessel additions		2,809			-
	Transfers from construction in progress		71,553			-
	Disposals		-4,951			1,837
	Depreciation		-			-133,197
	Impairment		-593,201			227,225
	Balance at December 31, 2013	$	2,784,023		$	-495,391			$	2,288,632
Drydock [Member]	'
Property, Plant and Equipment [Abstract]	'
Schedule Of Property Plant And Equipments [Table Text Block]	'
	Drydocking activity for the three years ended December 31, 2013 is summarized as follows:
	For the year ended December 31,		2013			2012				2011
	Balance at January 1	$	74,418		$	66,023			$	46,827
	Payments for drydocking		22,024			45,990				47,360
	Sub-total		96,442			112,013				94,187
	Drydock amortization		-32,648			-34,382				-27,680
	Amounts recognized upon sale/redelivery of vessels and non-cash adjustments		-6,546			-2,605				-484
	Impairments		-			-608				-
	Balance at December 31	$	57,248		$	74,418			$	66,023

EQUITY_METHOD_INVESTMENTS_Tabl

EQUITY METHOD INVESTMENTS (Tables)	12 Months Ended
	Dec. 31, 2013
Equity Method Investments and Joint Ventures [Abstract]	'
Equity Method Investments Summarized Balance Sheet Information [Table Text Block]	'
	A condensed summary of the combined assets and liabilities of the equity method investments follows:
	As of December 31,	2013		2012
	Current assets	$	197,625	$	155,142
	Vessels, net		1,576,692		1,640,910
	Other assets		53,274		60,362
	Total assets	$	1,827,591	$	1,856,414
	Current liabilities	$	179,913	$	225,551
	Long-term debt and other non-current liabilities		1,548,484		1,680,178
	Equity/(accumulated deficit)		99,194		-49,315
	Total liabilities and equity/(accumulated deficit)	$	1,827,591	$	1,856,414
Results of Operations of Equity Method Investments [Table Text Block]	'
	A condensed summary of the results of operations of the equity method investments follows:
	For the year ended December 31,	2013		2012		2011
	Shipping revenues	$	384,040	$	368,802	$	354,559
	Ship operating expenses		-248,924		-240,950		-239,885
	Income from vessel operations		135,116		127,852		114,674
	Other expense		-1,588		-1,419		-1,364
	Interest expense		-54,007		-65,936		-74,828
	Net income	$	79,521	$	60,497	$	38,482

VARIABLE_INTEREST_ENTITIES_VIE1

VARIABLE INTEREST ENTITIES ("VIEs") (Tables)	12 Months Ended
	Dec. 31, 2013
Disclosure Of Variable Interest Entities [Abstract]	'
Schedule of Variable Interest Entities [Table Text Block]	'
	The following table presents the carrying amounts of assets and liabilities in the balance sheet related to the VIEs described above as of December 31, 2013 and 2012:
	Consolidated Balance Sheet	December 31, 2013		December 31, 2012
	Investments in Affiliated Companies	$	275,261	$	244,258
	Other Liabilities(1)		-	$	29
	(1)Represents the Company’s valuation of its several guarantee of the FSO joint venture’s debt at December 31, 2013 and 2012.
Schedule of Variable Interest Entities [Table Text Block]	'
	The table below compares the Company’s liability in the consolidated balance sheet to the maximum exposure to loss at December 31, 2013.
		Consolidated Balance Sheet		Maximum Exposure to Loss
	Other Liabilities	$	-	$	373,500

GOODWILL_AND_INTANGIBLE_ASSETS1

GOODWILL AND INTANGIBLE ASSETS (Tables)	12 Months Ended
	Dec. 31, 2013
Goodwill and Intangible Assets Disclosure [Abstract]	'
Schedule of Goodwill [Table Text Block]	'
	Goodwill activity for the years ended December 31, 2013 and 2012 is summarized as follows:
		International
		Crude Tankers
		Segment and
		Total Goodwill
	Balance at January 1 and December 31, 2012	$	9,589
	Accumulated impairment losses		-9,589
	Balance at December 31, 2013	$	-
Schedule of Indefinite-Lived Intangible Assets [Table Text Block]	'
	Intangible assets activity for the three years ended December 31, 2013 is summarized as follows:
		International
		Crude
		Tankers		U.S.
		Segment		Segment		Other		Total
	Balance at January 1, 2011	$	8,921	$	73,944	$	272	$	83,137
	Amortization		-500		-4,667		-16		-5,183
	Disposal		-796		-		-		-796
	Balance at December 31, 2011		7,625		69,277		256		77,158
	Amortization		-500		-4,667		-16		-5,183
	Balance at December 31, 2012		7,125		64,610		240		71,975
	Amortization		-500		-4,667		-16		-5,183
	Impairment loss		-6,625		-		-		-6,625
	Balance at December 31, 2013	$	-	$	59,943	$	224	$	60,167

Debt_Tables

Debt (Tables)	12 Months Ended
	Dec. 31, 2013
Debt Disclosure [Abstract]	'
Schedule of Long-term Debt Instruments [Table Text Block]	'
	Debt, which is a component of Liabilities Subject to Compromise” on the consolidated balance sheets, consists of the following:
		As of  December 31,
	Debt Classified as Liabilities Subject to Compromise	2013		2012
	Unsecured revolving credit facility	$	1,489,000	$	1,489,000
	8.125% notes due 2018, net of unamortized discount of $2,898 and $2,898		297,102		297,102
	7.50% notes due 2024		146,000		146,000
	8.75% debentures due 2013, net of unamortized discount of $11 and $11		63,592		63,592
	Floating rate secured term loans, due through 2023		565,956		578,687
		$	2,561,650	$	2,574,381

FAIR_VALUE_OF_FINANCIAL_INSTRU1

FAIR VALUE OF FINANCIAL INSTRUMENTS, DERIVATIVES AND FAIR VALUE DISCLOSURES (Tables)	12 Months Ended
	Dec. 31, 2013
Fair Value Disclosures [Abstract]	'
Fair Value, by Balance Sheet Grouping [Table Text Block]	'
	The estimated fair values of the Company’s financial instruments, other than derivatives and marketable securities that are not measured at fair value on a recurring basis, categorized based upon the fair value hierarchy, at December 31, 2013 and 2012, are as follows:
						Level 1:
						Quoted prices in
						active markets for			Level 2:
						identical assets			Significant other
			Fair Value			or liabilities			observable inputs
	December 31, 2013:
	Cash and cash equivalents		$	601,927		$	601,927		$	-
	Unsecured Senior Notes		$	-559,441		$	-		$	-559,441
	December 31, 2012:
	Cash and cash equivalents		$	507,342		$	507,342		$	-
	Unsecured Senior Notes		$	-181,504		$	-		$	-181,504
Schedule Of Cash Flow Hedges Included In Accumulated Other Comprehensive Income (Loss) [Table Text Block]	'
	The effect of cash flow hedging relationships recognized in other comprehensive income/(loss) (effective portion), including hedges of equity method investees, for the years ended December 31, 2013, 2012 and 2011 follows:
	For the year ended December 31,		2013			2012			2011
	Interest rate swaps		$	19,114		$	-20,709		$	-65,317
	Total		$	19,114		$	-20,709		$	-65,317
	The effect of cash flow hedging relationships on the statement of operations, excluding hedges of equity method investees, for the years ended December 31, 2012 and 2011 is shown below:
			Statement of Operations
			Effective Portion of Gain/(Loss)
			Reclassified from
			Accumulated Other Comprehensive
			Loss					Ineffective Portion
	For the year ended				Amount of					Amount of
	31-Dec-12		Location		Gain/(Loss)			Location		Gain/(Loss)
	Interest rate swaps		Interest expense		$	-7,697		Interest expense		$	-
	Total				$	-7,697				$	-
			Statement of Operations
			Effective Portion of Gain/(Loss)
			Reclassified from
			Accumulated Other Comprehensive
			Loss					Ineffective Portion
	For the year ended				Amount of					Amount of
	31-Dec-11		Location		Gain/(Loss)			Location		Gain/(Loss)
	Interest rate swaps		Interest expense		$	-10,676		Interest expense		$	-
	Foreign currency contracts		General and administrative expenses			602		General and administrative expenses			-
	Total				$	-10,074				$	-
Schedule Of Derivative Instruments In Statement Of Financial Position, Fair Value [Table Text Block]	'
	The effect of the gain/(loss) recognized on derivatives not designated as hedging instruments on the statements of operations, excluding hedges of equity method investees, for the years ended December 31, 2013, 2012 and  2011 are as follows:
	For the year ended		Location		December 31,			December 31,			December 31,
					2013			2012			2011
	FFAs and bunker swaps		Other income/(expense)		$	-		$	1,376		$	840
	Foreign currency contracts		General and administrative expenses			-			-			-57
					$	-		$	1,376		$	783
Schedule Of Fair Value, Assets and Liabilities Measured On Recurring Basis [Table Text Block]	'
	The following tables present the fair values, which are pre-tax, for assets and liabilities measured on a recurring basis (excluding investments in affiliated companies):
						Level 1:
						Quoted prices in active
						markets for identical
	In thousands		Fair Value			assets or liabilities
	Assets/(Liabilities) at December 31, 2012:
	Available-for-sale marketable securities		$	181		$	181	-1
	(1)Included in prepaid expenses and other current assets in the accompanying balance sheet
Fair Value Measurements, Nonrecurring [Table Text Block]	'
	The following table summarizes the fair values of items measured at fair value on a nonrecurring basis for the years ended December 31, 2013 and 2012:
							Level 2:
							Significant			Level 3:
							Other			Significant			Total
							Observable			Unobservable			Impairment
	Description			Fair Value			Inputs			Inputs			Charges
	Assets for the year ended December 31, 2013:
	International Crude Tankers impairment
	Vessels held for use(1)		$	359,252		$	359,252		$	-		$	-327,675
	Other fixed assets held for use(2)		$	750			-		$	750			-462
	Intangible assets (2)		$	-		$	-		$	-		$	-6,625
	Goodwill(3)		$	-		$	-		$	-		$	-9,589
	International Product Carriers impairment
	Vessels held for use(1)		$	67,947		$	67,947		$	-		$	-38,301
	Assets for the year ended December 31, 2012:
	International Crude Tankers impairment
	Vessels held for use(4)		$	106,400		$	106,400			-		$	-101,589
	International Product Carriers impairment
	Vessels held for use(4)		$	139,000		$	139,000			-		$	-176,756
		-1	Aggregate pre-tax impairment charges of $365,976 were recorded in the fourth quarter of 2013, related to 15 vessels held for use in the International Crude Tanker and International Product Carriers segments. The fair value measurement used to determine the impairment for the vessels held for use was based upon a market approach, which utilized the expected sales prices of the vessels obtained from third party appraisals. Because sales of vessels occur somewhat infrequently, the expected sales prices are considered to be Level 2.
		-2	Aggregate pre-tax impairment charges of $7,087 were recorded in the fourth quarter of 2013, including $6,625 related to customer relationship intangible assets and $462 related to transportation equipment held for use in the International Crude Tanker’s Lightering business. The fair value measurement used to determine the impairment for the intangible assets and equipment held for use was based upon the income approach, which utilized cash flow projections consistent with the most recent projections of the Company, and a discount rate equivalent to a market participant's weighted average cost of capital. Because the Company uses its own cash flow projections, the cash flow projections are considered to be Level 3.
		-3	Aggregate pre-tax impairment charges of $9,589 were recorded in the fourth quarter of 2013, related to goodwill of the International Crude Tanker’s Lightering business. The fair value measurement used to determine the impairment for goodwill was based upon the income approach, which utilized cash flow projections consistent with the most recent projections of the Company, and a discount rate equivalent to a market participant's weighted average cost of capital. Because the Company uses its own cash flow projections, the cash flow projections are considered to be Level 3.
		-4	Aggregate pre-tax impairment charges of $278,345 were recorded in the fourth quarter of 2012 related to 15 vessels held for use in the International Crude Tanker and International Product Carriers segments. The fair value measurement used to determine the impairment for the vessels held for use was based upon a market approach, which utilized the expected sales prices of the vessels obtained from third party appraisals. Because sales of vessels occur somewhat infrequently, the expected sales prices are considered to be Level 2.

ACCOUNTS_PAYABLE_ACCRUED_EXPEN1

ACCOUNTS PAYABLE, ACCRUED EXPENSES AND OTHER CURRENT LIABILITIES (Tables)	12 Months Ended
	Dec. 31, 2013
Accounts Payable and Accrued Liabilities, Current [Abstract]	'
Accounts Payable Accrued Liabilities And Other Liabilities Disclosure [Table Text Block]	'
	Accounts payable, accrued expenses and other current liabilities follows:
	At December 31,	2013		2012
	Accounts payable	$	22,002	$	16,545
	Payroll and benefits		30,589		12,704
	Due to owners on chartered in vessels		3,452		4,753
	Accrued drydock and repair costs		4,335		3,823
	Bunkers and lubricants		7,907		14,201
	Charter revenues received in advance		18,682		10,778
	Insurance		573		1,009
	Accrued vessel expenses		7,529		11,268
	Other		26,513		24,192
		$	121,582	$	99,273

TAXES_Tables

TAXES (Tables)	12 Months Ended
	Dec. 31, 2013
Income Tax Disclosure [Abstract]	'
Schedule of Deferred Tax Assets and Liabilities [Table Text Block]	'
	The significant components of the Company’s deferred tax liabilities and assets follow:
	As of December 31,	2013			2012
	Deferred tax liabilities:
	Excess of book over tax basis of depreciable or amortizable assets—net	$	290,620		$	301,378
	Unremitted earnings of foreign subsidiaries		55,602			103,388
	Costs capitalized and amortized for book, expensed for tax		12,010			13,058
	Interest expense		35,368			4,329
	Other—net		9,966			7,327
	Total deferred tax liabilities		403,566			429,480
	Deferred tax assets:
	Net operating loss carryforward		12,580			10,659
	Employee compensation and benefit plans		32,403			31,902
	Other—net		7,570			26,121
	Total deferred tax assets		52,553			68,682
	Valuation allowance		13,477			8,264
	Net deferred tax assets		39,076			60,418
	Net deferred tax liabilities	$	364,490		$	369,062
	These amounts are classified in the balance sheet as follows:
	Current deferred tax (assets)	$	-5,464		$	-
	Current deferred tax liabilities		-			25,900
	Noncurrent deferred tax liabilities		369,954			343,162
	Net deferred tax liabilities	$	364,490		$	369,062
Schedule of Income before Income Tax, Domestic and Foreign [Table Text Block]	'
	The components of loss before income taxes follow:
	For the year ended December 31,	2013			2012			2011
	Foreign	$	-662,480		$	-484,306		$	-129,051
	Domestic	$	9,505		$	2,711		$	-70,326
		$	-652,975		$	-481,595		$	-199,377
Schedule of Components of Income Tax Expense (Benefit) [Table Text Block]	'
	The components of the income tax (provisions)/benefits follow:
	For the year ended December 31,	2013			2012			2011
	Current	$	7,347		$	-28,270		$	-31,622
	Deferred		7,398			29,751			29,636
		$	14,745		$	1,481		$	-1,986
Schedule of Effective Income Tax Rate Reconciliation [Table Text Block]	'
	Reconciliations of the actual income tax rate attributable to pretax results and the U.S. statutory income tax rate follow:
	For the year ended December 31,	2013			2012				2011
	Actual income tax rate		2.3	%		0.3	%		-1	%
	Adjustments due to:
	Income not subject to U.S. income taxes		36.2	%		31.3	%		25.2	%
	State taxes, net of federal benefit		-0.5	%		1.8	%		0	%
	Interest on unrecognized tax benefits		-4.9	%		1.1	%		9.1	%
	Nondeductible reorganization costs		1.4	%		0.4	%		0	%
	Foreign income and repatriations taxed in the U.S.		1.6	%		-1.7	%		-0.7	%
	Change in tax status of subsidiary		-0.9	%		0.1	%		0	%
	Other		-0.2	%		1.7	%		2.4	%
	U.S. statutory income tax rate		35	%		35	%		35	%
Summary of Income Tax Contingencies [Table Text Block]	'
	The following is a roll-forward of the Company’s unrecognized tax benefits (excluding interest and penalties) for 2013 and 2012:
		2013			2012
	Balance of unrecognized tax benefits as of January 1,	$	374,826		$	361,829
	Increases for positions taken in prior years		59			482
	Decreases for positions taken in prior years		-14,240			-
	Increases for positions related to the current year		31,838			13,514
	Amounts of decreases related to settlements		-			-384
	Reductions due to lapse of statutes of limitations		-653			-615
	Balance of unrecognized tax benefits as of December 31,	$	391,830		$	374,826

CAPITAL_STOCK_AND_STOCK_COMPEN1

CAPITAL STOCK AND STOCK COMPENSATION (Tables)	12 Months Ended
	Dec. 31, 2013
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]	'
Schedule of Share-based Compensation, Restricted Stock Units Award Activity [Table Text Block]	'
	Activity with respect to restricted common stock and restricted stock units is summarized as follows:
	Nonvested Shares Outstanding at December 31, 2010	351,695
	Granted	359,843
	Vested ($35.46 to $64.92 per share)	-127,391
	Forfeited	-75,087
	Nonvested Shares Outstanding at December 31, 2011	509,060
	Granted	446,409
	Vested ($39.41 to $64.92 per share)	-159,530
	Forfeited	-15,345
	Nonvested Shares Outstanding at December 31, 2012	780,594
	Vested ($10.00 to $43.40 per share)	-155,932
	Forfeited	-379,163
	Nonvested Shares Outstanding at December 31, 2013	245,499
Schedule of Share-based Compensation, Stock Options, Activity [Table Text Block]	'
	Stock option activity under all plans is summarized as follows:
	Options Outstanding at December 31, 2010	1,543,206
	Granted	626,312
	Forfeited	-300,831
	Exercised	-
	Options Outstanding at December 31, 2011	1,868,687
	Granted	377,653
	Forfeited	-41,559
	Exercised	-
	Options Outstanding at December 31, 2012	2,204,781
	Granted	-
	Forfeited	-1,523,825
	Exercised	-
	Options Outstanding at December 31, 2013	680,956
	Options Exercisable at December 31, 2013	550,010

ACCUMULATED_OTHER_COMPREHENSIV1

ACCUMULATED OTHER COMPREHENSIVE LOSS (Tables)	12 Months Ended
	Dec. 31, 2013
Accumulated Other Comprehensive Income (Loss) Note [Abstract]	'
Schedule of Accumulated Other Comprehensive Income (Loss) [Table Text Block]	'
	The components of accumulated other comprehensive loss, net of related taxes, in the consolidated balance sheets follow:
	At December 31,		2013		2012
	Unrealized gains on available-for-sale securities		$	-	$	49
	Unrealized losses on derivative instruments			-59,263		-98,937
	Items not yet recognized as a component of net periodic benefit cost (pension and other			-10,081		-14,893
	postretirement benefit plans)
			$	-69,344	$	-113,781
Schedule of Comprehensive Income (Loss) [Table Text Block]	'
	The following tables present the change in the balances of each component of accumulated other comprehensive loss, net of related taxes, for the three years ended December 31, 2013.
			Unrealized		Unrealized		Items not yet		Total
			gains/(losses)		gains/(losses)		recognized as a
			on available-		on cash flow		component of
			for-sale		hedges		net periodic
			securities				benefit cost
							(pension and
							other
							postretirement
							plans)
	Balance as of December 31, 2012		$	49	$	-98,937	$	-14,893	$	-113,781
	Current period other comprehensive income,			-181		19,114		4,336		23,269
	excluding amounts reclassified from accumulated
	other comprehensive income
	Amounts reclassified from accumulated other			132		20,560		476		21,168
	comprehensive loss
	Total change in accumulated other comprehensive loss			-49		39,674		4,812		44,437
	Balance as of December 31, 2013		$	-	$	-59,263	$	-10,081	$	-69,344
	Balance as of December 31, 2011		$	34	$	-104,554	$	-14,787	$	-119,307
	Current period other comprehensive loss, excluding			-836		-20,709		-409		-21,954
	amounts reclassified from accumulated other
	comprehensive loss
	Amounts reclassified from accumulated other			851		26,326		303		27,480
	comprehensive loss
	Total change in accumulated other comprehensive loss			15		5,617		-106		5,526
	Balance as of December 31, 2012		$	49	$	-98,937	$	-14,893	$	-113,781
	Balance as of December 31, 2010		$	265	$	-69,886	$	-7,267	$	-76,888
	Current period other comprehensive loss, excluding			-557		-65,317		-7,669		-73,543
	amounts reclassified from accumulated other
	comprehensive loss
	Amounts reclassified from accumulated other			326		30,649		149		31,124
	comprehensive loss
	Total change in accumulated other comprehensive loss			-231		-34,668		-7,520		-42,419
	Balance as of December 31, 2011		$	34	$	-104,554	$	-14,787	$	-119,307
Reclassification Out of Accumulated Other Comprehensive Income (Loss) [Table Text Block]	'
	The following table presents information with respect to amounts reclassified out of accumulated other comprehensive loss for the three years ended December 31, 2013.
			Years Ended December 31,
	Accumulated Other Comprehensive Income Component		2013		2012		2011		Statement of Operations Line Item
	Unrealized losses on available-for-sale securities:
	Impairment recorded relating to securities held by		$	-132	$	-851	$	-326	Other income/(expense)
	the Company's foreign subsidiaries
	Unrealized losses on cash flow hedges:
	Interest rate swaps entered into by the Company's			-20,560		-20,864		-22,980	Equity in income of affiliated companies
	equity method joint venture investees
	Interest rate swaps entered into by the Company's			-		-7,697		-10,676	Interest expense
	subsidiaries
	Foreign currency contracts entered into by the			-		-		602	General and administrative expenses
	Company's foreign subsidiaries
	Items not yet recognized as a component of net periodic benefit cost (pension and other postretirement plans):
	Net periodic benefit costs associated with			-678		-526		-100	General and administrative expenses
	pension and postretirement benefit plans
	for shore-based employees
	Net periodic benefit costs associated with			65		-24		-90	Vessel expenses
	pension and postretirement benefit plans
	for seagoing employees
				-21,305		-29,962		-33,570	Total before tax
				137		2,482		2,446	Tax (expense) or benefit (1)
			$	-21,168	$	-27,480		-31,124	Total net of tax
		-1	The tax benefit relates to the net periodic benefit costs of the Company's pension and postretirement benefit plans as well as interest rate swaps entered into by the Company's domestic subsidiaries
Comprehensive Income Tax Expenses Benefits [Table Text Block]	'
	The income tax expense/(benefit) allocated to each component of other comprehensive loss follows:
			Tax (expense)/		Tax (expense)/
			benefit on		benefit on items
			unrealized		not yet recognized
			gains/(losses) on		as a component of
			cash flow hedges		net periodic benefit
					cost
	For the year ended December 31, 2013
	Current period change excluding amounts reclassified from		$	-	$	-2,899
	accumulated other comprehensive income
	Amounts reclassified from accumulated other comprehensive income			-		-137
	Total change in accumulated other comprehensive income		$	-	$	-3,036
	For the year ended December 31, 2012
	Current period change excluding amounts reclassified from		$	131	$	118
	accumulated other comprehensive income
	Amounts reclassified from accumulated other comprehensive income			-2,235		-247
	Total change in accumulated other comprehensive income		$	-2,104	$	-129
	For the year ended December 31, 2011
	Current period change excluding amounts reclassified from		$	504	$	3,392
	accumulated other comprehensive income
	Amounts reclassified from accumulated other comprehensive income			-2,405		-41
	Total change in accumulated other comprehensive income		$	-1,901	$	3,351

LEASES_Tables

LEASES (Tables)	12 Months Ended
	Dec. 31, 2013
Leases [Abstract]	'
Operating Leases of Lessee Disclosure [Table Text Block]	'
	As of December 31, 2013, the Company had commitments to charter-in 22 vessels. All of the charter-ins are accounted for as operating leases, of which 13 are bareboat charters and nine are time charters. Lease expense relating to charters-in is included in “charter hire expenses” on the consolidated statements of operations.
	Bareboat Charters-in:
	At December 31, 2013	Amount		Operating Days
	2014	$	93,423		4,745
	2015		97,817		4,745
	2016		99,038		4,758
	2017		98,219		4,713
	2018		93,200		3,929
	Thereafter		111,318		3,450
	Net minimum lease payments	$	593,015		26,340
	Time Charters-in:
	At December 31, 2013	Amount		Operating Days
	2014	$	38,942		3,419
	2015		22,606		1,847
	2016		1,004		73
	Net minimum lease payments	$	62,552		5,339
Operating Leases of Lessor [Table Text Block]	'
	The future minimum revenues, before reduction for brokerage commissions, expected to be received on noncancelable time charters and certain COAs for which minimum annual revenues can be reasonably estimated and the related revenue days (revenue days represent calendar days, less days that vessels are not available for employment due to repairs, drydock or lay-up) are as follows:
				Revenue
	At December 31, 2013	Amount		Days
	2014	$	364,905		9,246
	2015		232,190		4,598
	2016		148,524		2,846
	2017		91,201		1,640
	2018		55,337		881
	Thereafter		29,387		343
	Net minimum lease payments	$	921,544		19,554
Office Space [Member]	'
Leases [Abstract]	'
Operating Leases of Lessee Disclosure [Table Text Block]	'
	The future minimum commitments under lease obligations for office space are as follows:
	At December 31, 2013
	2014	$	3,001
	2015		1,990
	2016		1,106
	2017		523
	2018		314
	Net minimum lease payments	$	6,934

PENSION_AND_OTHER_POSTRETIREME1

PENSION AND OTHER POSTRETIREMENT BENEFIT PLANS (Tables)	12 Months Ended
	Dec. 31, 2013
Compensation and Retirement Disclosure [Abstract]	'
Schedule of Multiemployer Plans [Table Text Block]	'
	Plan level information is available in the public domain for each of the multiemployer pension plans the Company participates in. The table below provides additional information about the Company’s participation in the above multi-employer pension plans:
			Pension Protection								Contributions made
			Act
			Zone Status								by the Company
			EIN / Pension						Rehabilitation
	Pension Plan		Plan Number		2013		2012		Plan Status		2013				2012		2011
	AMO Pension Plan		13-1936709		Yellow (1)		Red (1)		Implemented		$	975			$	890	$	805
	MEBA Pension Plan		51-6029896		Green (1)		Green (1)		None			-				-		-
	Seafarers Pension Plan		13-6100329		Green (1)		Green (1)		None			407				416		425
									Total contributions		$	1,382			$	1,306	$	1,230
	(1) A "Red" Zone Status plan is a plan that is funded less than  65% and currently has a funding deficiency or a funding deficiency that is projected in the near term.  A "Yellow" Zone Status plan is a plan that has a funding ratio between 65% and 80%. A "Green" Zone Status plan is a plan that is 80% funded or more.
Schedule of Benefit Obligations in Excess of Fair Value of Plan Assets [Table Text Block]	'
	Information with respect to the domestic pension and postretirement benefit plans for which the Company uses a December 31 measurement date, follow:
			Pension Benefits								Other Benefits
	At December 31,		2013				2012				2013				2012
	Change in benefit obligation:
	Benefit obligation at beginning of year		$	51,022			$	46,854			$	4,466			$	6,395
	Cost of benefits earned (service cost)			-				-				118				195
	Interest cost on benefit obligation			1,775				2,032				178				237
	Amendments			-				-				-				-3,012
	Actuarial (gains)/losses			-4,500				4,374				-621				804
	Benefits paid			-2,261				-2,238				-222				-153
	Benefit obligation at year end			46,036				51,022				3,919				4,466
	Change in plan assets:
	Fair value of plan assets at beginning of year			31,392				28,897				-				-
	Actual return on plan assets			5,574				3,161				-				-
	Employer contributions			1,318				1,545				-				-
	Benefits paid			-2,261				-2,211				-				-
	Fair value of plan assets at year end			36,023				31,392				-				-
	Unfunded status at December 31		$	-10,013			$	-19,630			$	-3,919			$	-4,466
Schedule of Accumulated Benefit Obligations in Excess of Fair Value of Plan Assets [Table Text Block]	'
	Information for domestic defined benefit pension plans with accumulated benefit obligations in excess of plan assets follows:
	At December 31,			2013				2012
	Projected benefit obligation		$	46,036			$	51,022
	Accumulated benefit obligation			46,036				51,022
	Fair value of plan assets			36,023				31,392
Schedule of Net Benefit Costs [Table Text Block]	'
			Pension benefits												Other benefits
	For the year ended December 31,			2013				2012				2011				2013		2012		2011
	Components of expense:
	Cost of benefits earned		$	-			$	-			$	-			$	118	$	195	$	226
	Interest cost on benefit obligation			1,775				2,032				2,171				178		237		292
	Expected return on plan assets			-2,092				-1,873				-2,030				-		-		-
	Amortization of prior-service costs			-				-				-				-333		-233		-157
	Amortization of transition obligation			-				-				-				7		10		20
	Recognized net actuarial loss			504				316				30				171		160		122
	Net periodic benefit cost		$	187			$	475			$	171			$	141	$	369	$	503
Schedule of Effect of One-Percentage-Point Change in Assumed Health Care Cost Trend Rates [Table Text Block]	'
	A 1% change in assumed health care cost trend rates would have the following effects:
			1% increase				1% decrease
	Effect on total of service and interest cost components in 2013		$	41			$	-33
	Effect on postretirement benefit obligation as of December 31, 2013		$	376			$	-316
Schedule of Expected Benefit Payments [Table Text Block]	'
	Expected benefit payments are as follows:
			Pension benefits				Other benefits
	2014		$	2,287			$	169
	2015			2,384				174
	2016			2,536				180
	2017			2,560				191
	2018			2,668				205
	Years 2019-2023			14,763				1,189
			$	27,198			$	2,108
Schedule of Changes in Fair Value of Plan Assets [Table Text Block]	'
	The fair values of the Company’s pension plan assets at December 31, 2013, by asset category are as follows:
							Level 1:
							Quoted prices in active
							markets for identical
	Description		Fair Value				assets or liabilities
	Cash and cash equivalents		$	1,097			$	1,097
	Equity securities:
	U.S. companies			16,949				16,949
	International companies			7,336				7,336
	Corporate debt securities			1,407				1,407
	Mutual funds(1)			3,449				3,449
	U.S. Treasury securities			4,765				4,765
	Mortgage-backed securities			1,020				1,020
	Total		$	36,023			$	36,023
	-1	The mutual fund investments are invested in intermediate term bonds and fixed income instruments including (but not limited to) mortgage and other asset-backed securities and corporate debt securities of U.S. and non-U.S. issuers.
Benefit Obligations [Member]	'
Compensation and Retirement Disclosure [Abstract]	'
Schedule of Assumptions Used [Table Text Block]	'
	The weighted-average assumptions used to determine benefit obligations follow:
			Pension benefits						Other benefits
	At December 31,		2013			2012			2013			2012
	Discount rate			4.5	%		3.75	%		5	%		4	%
	Rate of future compensation increases			-			-			-			-
Net Periodic Benefit Cost [Member]	'
Compensation and Retirement Disclosure [Abstract]	'
Schedule of Assumptions Used [Table Text Block]	'
	The weighted-average assumptions used to determine net periodic benefit cost follow:
			Pension benefits						Other benefits
	For the year ended December 31,		2013		2012		2011		2013		2012		2011
	Discount rate		3.75	%	4.5	%	5.25	%	4	%	4.5	%	5.25	%
	Expected (long-term) return on plan assets		6.75	%	6.5	%	6.75	%	-		-		-
	Rate of future compensation increases		-		-		-		-		-		-

OTHER_INCOMEEXPENSE_Tables

OTHER INCOME/(EXPENSE) (Tables)	12 Months Ended
	Dec. 31, 2013
Other Income and Expenses [Abstract]	'
Schedule of Other Nonoperating Income (Expense) [Table Text Block]	'
	Other income/(expense) consists of:
	For the year ended December 31,	2013		2012		2011
	Investment income:
	Interest	$	856	$	431	$	918
	Dividends		-		36		220
	Gain/(loss) on sale or write-down of securities and investments		-197		-3,166		313
			659		-2,699		1,451
	Loss on repurchase of debt		-		-		-375
	Gain on derivative transactions		-		1,376		840
	Miscellaneous—net		190		9		238
		$	849	$	-1,314	$	2,154

SEVERANCE_AND_RELOCATION_COSTS1

SEVERANCE AND RELOCATION COSTS AND AGREEMENTS WITH EXECUTIVE OFFICERS (Tables)	12 Months Ended
	Dec. 31, 2013
Restructuring and Related Activities [Abstract]	'
Restructuring and Related Costs [Table Text Block]	'
	Activity relating to the reserves for the April RIF and TMC for the two years ended December 31, 2013 is summarized as follows:
				Apr-13
		TMC		RIF
	Activity for the year ended December 31, 2012:
	Original estimate	$	2,100
	Change in estimate		1,063
	Utilized		-2,705
	Balance at December 31, 2012		458
	Activity for the year ended December 31, 2013:
	Original estimate			$	3,824
	Change in estimate		33		25
	Utilized		-36		-2,059
	Release of excess reserves		-455		-422
	Balance at December 31, 2013	$	-	$	1,368

2013_AND_2012_QUARTERLY_RESULT1

2013 AND 2012 QUARTERLY RESULTS OF OPERATIONS (UNAUDITED) (Tables)	12 Months Ended
	Dec. 31, 2013
Quarterly Financial Information Disclosure [Abstract]	'
Schedule of Quarterly Financial Information [Table Text Block]	'
	Selected Financial Data for the Quarter Ended		March 31,		June 30,		Sept. 30,		Dec. 31,
	2013
	Shipping revenues		$	247,438	$	228,114	$	267,342	$	273,102
	Gain/(loss) on disposal of vessels, including impairments (a)			-22		1,228		-63		-382,614
	Income/(loss) from vessel operations			1,221		432		7,768		-376,619
	Interest expense			288		31		3		28
	Reorganization items, net (b)			184,621		37,503		14,705		90,341
	Income tax benefit/(provision)			5,835		1,899		-1,947		8,958
	Net income/(loss)			-167,762		-24,147		960		-447,281
	Basic net income/(loss) per share		$	-5.51	$	-0.79	$	0.03	$	-14.67
	Diluted net income/(loss) per share		$	-5.51	$	-0.79	$	0.03	$	-14.67
		(a)	As discussed in Note 7, "Vessels, Deferred Drydock and Other Property," vessel impairment charges aggregating $365,976 were recorded in the fourth quarter. Further, as discussed in Note 10, "Goodwill and Intangible Assets," impairment charges aggregating $16,214 for goodwill and intangible assets related to the International Crude Tankers Lightering business were recorded in the fourth quarter.
		(b)	As discussed in Note 3, "Liabilities Subject to Compromise and Reorganization Items," the Company adjusts its accrued liabilities relating to rejected executory contracts when new information becomes available. In the fourth quarter, the Company increased its accruals by $69,154 based upon such new information.
		(c)	As discussed in Note 2, "Bankruptcy Filing and Going Concern," and Note 11, "Debt," the Debtors filed a petition for relief under Chapter 11 and its debt agreements are classified as Liabilities Subject to Compromise. For the quarter ended December 31, 2013, interest expense of $17,168 was accordingly not recorded.
	2012
	Shipping revenues		$	292,378	$	291,354	$	297,505	$	255,897
	Gain/(loss) on disposal of vessels, including impairments (a)			106		285		-332		-271,418
	Loss from vessel operations			-23,642		-30,439		-13,928		-311,224
	Interest expense (b)			23,010		22,084		23,314		25,013
	Reorganization items, net			-		-		-		41,113
	Income tax benefit/(provision)			-528		911		-105		1,203
	Net loss			-36,860		-52,695		-25,786		-364,773
	Basic net loss per share		$	-1.22	$	-1.74	$	-0.85	$	-12.01
	Diluted net loss per share		$	-1.22	$	-1.74	$	-0.85	$	-12.01
		(a)	As discussed in Note 7, "Vessels, Deferred Drydock and Other Property," impairment charges aggregating $279,382 were recorded in the fourth quarter.
		(b)	As discussed in Note 2, "Bankruptcy Filing and Going Concern," and Note 11, "Debt," the Debtors filed a petition for relief under Chapter 11 and its debt agreements are classified as Liabilities Subject to Compromise. From November 14, 2012 to December 31, 2012, interest expense of $9,395 was accordingly not recorded.

CONDENSED_COMBINED_FINANCIAL_S1

CONDENSED COMBINED FINANCIAL STATEMENTS OF DEBTOR SUBSIDIARIES (Tables)	12 Months Ended
	Dec. 31, 2013
Condensed Combined Financial Statements Of Debtor Subsidiaries [Abstract]	'
Schedule of Combined Condensed Balance Sheet Information [Table Text Block]	'
		Total Combined Debtor Entities
	Combined Balance Sheet information at	December 31,		December 31,
		2013		2012
	ASSETS
	Current Assets:
	Cash and cash equivalents	$	585,907	$	471,726
	Voyage receivables		147,107		178,635
	Income taxes recoverable		3,941		-
	Other receivables		16,040		38,153
	Inventories		16,884		15,532
	Prepaid expenses and other current assets		27,808		40,070
	Deferred income taxes		5,464		-
	Total Current Assets		803,151		744,116
	Vessels and other property less accumulated depreciation		2,370,880		2,849,331
	Deferred drydock expenditures, net		57,248		74,418
	Total Vessels, Deferred Drydock and Other Property		2,428,128		2,923,749
	Investments in affiliated companies		323,327		252,098
	Intangible assets, less accumulated amortization		59,943		71,736
	Goodwill		-		9,668
	Investments in subsidiaries		147,921		147,921
	Pre and post-petition intercompany loans receivable and accrued interest		31,588		76,611
	Pre-petition intercompany receivables		2,244,406		2,233,404
	Post-petition intercompany receivables		15,819		927
	Other assets		26,896		26,767
	Total Assets	$	6,081,179	$	6,486,997
	LIABILITIES AND EQUITY
	Current Liabilities:
	Accounts payable, accrued expenses and other current liabilities	$	96,007	$	84,477
	Deferred income taxes		-		25,900
	Income taxes payable, including reserve for uncertain tax positions of		255,987		329,922
	$234,623 and $326,121
	Total Current Liabilities		351,994		440,299
	Reserve for uncertain tax positions		26,585		17,067
	Deferred gain on sale and leaseback of vessels		-		3,839
	Deferred income taxes		369,942		346,620
	Other liabilities		30,977		29,326
	Post-petition intercompany payables		48,677		47,075
	Liabilities subject to compromise, including pre-petition		5,041,334		4,811,562
	intercompany payables
	Total Liabilities		5,869,509		5,695,788
	Equity:
	Total Equity		211,670		791,209
	Total Liabilities and Equity	$	6,081,179	$	6,486,997
Schedule of Combined Condensed Income Statement [Table Text Block]	'
		Total Combined Debtor Entities
	Combined Statement of Operations for the years ended December 31,	2013		2012
	Shipping Revenues:
	Pool revenues	$	176,863	$	240,487
	Time and bareboat charter revenues		370,619		299,220
	Voyage charter revenues		468,406		583,253
	Sunoco termination fee		-		13,300
			1,015,888		1,136,260
	Operating Expenses:
	Voyage expenses		252,862		297,652
	Vessel expenses		266,016		283,858
	Charter hire expenses		206,780		368,298
	Depreciation and amortization		176,886		201,670
	General and administrative		69,106		66,544
	Severance and relocation		3,238		-
	Goodwill and other intangibles impairment charge		16,293		-
	Loss on disposal of vessels, including impairments		365,168		271,295
	Total Operating Expenses		1,356,349		1,489,317
	Loss from Vessel Operations		-340,461		-353,057
	Equity in Income of Affiliated Companies		40,894		33,486
	Operating Loss		-299,567		-319,571
	Other Expense		-16,130		-21,684
	Loss before Interest Expense, Reorganization Items and		-315,697		-341,255
	Income Taxes
	Interest Expense		-350		-93,421
	Loss before Reorganization Items and Income Taxes		-316,047		-434,676
	Reorganization Items, net		-327,170		-41,113
	Loss before Income Taxes		-643,217		-475,789
	Income Tax Benefit		18,883		1,485
	Net Loss	$	-624,334	$	-474,304
Schedule of Combined Condensed Cash Flow Statement [Table Text Block]	'
		Total Combined Debtors
	Combined Statement of Cash Flows for the years ended December 31,	2013		2012
	Cash Flows from Operating Activities:
	Net loss	$	-624,334	$	-474,304
	Items included in net loss not affecting cash flows:
	Depreciation and amortization		176,886		201,670
	Loss on write-down of vessels and other fixed assets		366,438		279,382
	Goodwill and other intangibles write-down		16,293		-
	Amortization of deferred gain on sale and leasebacks		42		-5,905
	Amortization of debt discount and other deferred financing costs		-		3,198
	Deferred financing costs write-off		-		12,540
	Compensation relating to restricted stock and stock option grants		-131		7,076
	Dedesignation of interest rate swap agreements		-		1,866
	Deferred income tax benefit		-10,896		-30,065
	Undistributed earnings of affiliated companies		-35,826		-22,771
	Deferred payment obligations on charters-in		5,446		5,600
	Reorganization items, non-cash		261,221		34,676
	(Gain)/loss on sublease contracts		-896		895
	Other – net		2,242		7,190
	Items included in net loss related to investing and financing activities:
	Loss on sale of securities and other investments – net		198		3,132
	Gain on disposal of vessels – net		-1,270		-8,087
	Payments for drydocking		-22,024		-45,990
	Changes in operating assets and liabilities		-16,439		33,683
	Net cash provided by operating activities		116,950		3,786
	Cash Flows from Investing Activities:
	Proceeds from sale of marketable securities and investments		459		12,979
	Proceeds from the disposal of vessels		485		12,886
	Expenditures for vessels and other property		-38,325		-54,625
	Distributions from affiliated companies		2,097		6,608
	Net change in intercompany loans due from non-debtors		44,564		-62,928
	Other – net		724		564
	Net cash provided by/(used in) investing activities		10,004		-84,516
	Cash Flows from Financing Activities:
	Purchases of treasury stock		-42		-307
	Issuance of debt, net of issuance costs and deferred financing costs		-		572,000
	Payments on debt, including adequate protection payments		-12,731		-63,990
	Issuance of common stock upon exercise of stock options		-		68
	Net cash provided by/(used in) financing activities		-12,773		507,771
	Net increase in cash and cash equivalents		114,181		427,041
	Cash and cash equivalents at beginning of year		471,726		44,685
	Cash and cash equivalents at end of year	$	585,907	$	471,726

BASIS_OF_PRESENTATION_AND_DESC1

BASIS OF PRESENTATION AND DESCRIPTION OF BUSINESS (Details Textual)	Dec. 31, 2013
Organization, Consolidation and Presentation of Financial Statements [Line Items]	'
Equity Method Investment, Ownership Percentage	50.00%

BANKRUPTCY_FILING_AND_GOING_CO1

BANKRUPTCY FILING AND GOING CONCERN (Details Textual) (USD $)	0 Months Ended	12 Months Ended
In Thousands, unless otherwise specified	Feb. 11, 2013	Dec. 31, 2013
Chapter 11 Filing Going Concern and Other Related Matters [Line Items]	'	'
Bankruptcy Claims, Amount of Claims Filed	$463,013	$255,760

LIABILITIES_SUBJECT_TO_COMPROM2

LIABILITIES SUBJECT TO COMPROMISE AND REORGANIZATION ITEMS (Details) (USD $)	Dec. 31, 2013	Dec. 31, 2012
In Thousands, unless otherwise specified
Liabilities Subject To Compromise And Reorganization Items [Line Items]	'	'
Pre-petition accounts payable and other accrued liabilities	$4,565	$2,717
Long-term debt and accrued interest	69,154	'
Derivative liabilities	3,566	3,566
Accrued liabilities relating to rejected executory contracts	282,599	30,539
Pension and other postretirement benefit plan liabilities	27,377	37,521
Total Liabilities Subject to Compromise	2,888,173	2,652,537
Revolving Credit Facility [Member]	'	'
Liabilities Subject To Compromise And Reorganization Items [Line Items]	'	'
Long-term debt and accrued interest	1,489,000	1,488,579
Long-term Debt [Member]	'	'
Liabilities Subject To Compromise And Reorganization Items [Line Items]	'	'
Long-term debt and accrued interest	569,408	577,957
Unsecured Debt [Member]	'	'
Liabilities Subject To Compromise And Reorganization Items [Line Items]	'	'
Long-term debt and accrued interest	10,878	10,878
Senior Notes [Member]	'	'
Liabilities Subject To Compromise And Reorganization Items [Line Items]	'	'
Long-term debt and accrued interest	$500,780	$500,780

LIABILITIES_SUBJECT_TO_COMPROM3

LIABILITIES SUBJECT TO COMPROMISE AND REORGANIZATION ITEMS (Details 1) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012
Liabilities Subject To Compromise And Reorganization Items [Line Items]	'	'
Balance at January 1,	$30,539	$0
Original provision	180,505	30,187
Change in estimate - prior year's provision	8,068	0
Change in estimate - current year's provision	60,266	0
Other liabilities relating to rejected executory contracts	3,221	352
Balance at December 31,	$282,599	$30,539

LIABILITIES_SUBJECT_TO_COMPROM4

LIABILITIES SUBJECT TO COMPROMISE AND REORGANIZATION ITEMS (Details 2) (USD $)

3 Months Ended

12 Months Ended

In Thousands, unless otherwise specified

Dec. 31, 2013

Sep. 30, 2013

Jun. 30, 2013

Mar. 31, 2013

Dec. 31, 2012

Sep. 30, 2012

Jun. 30, 2012

Mar. 31, 2012

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2011

Liabilities Subject To Compromise And Reorganization Items [Line Items]

'

'

'

'

'

'

'

'

'

'

'

Trustee fees

'

'

'

'

'

'

'

'

$3,006

$672

'

Professional fees

'

'

'

'

'

'

'

'

62,823

7,889

'

Provision for estimated claims on rejected executory contracts

'

'

'

'

'

'

'

'

248,839

30,187

'

Expenses incurred on rejected executory contracts

'

'

'

'

'

'

'

'

7,683

2,365

'

Write-off of deferred financing costs

'

'

'

'

'

'

'

'

4,603

0

'

Other claims adjustments

'

'

'

'

'

'

'

'

216

0

'

Reorganization Items, net

$90,341

[1]

$14,705

[1]

$37,503

[1]

$184,621

[1]

$41,113

$0

$0

$0

$327,170

$41,113

$0

[1]

As discussed in Note 3, "Liabilities Subject to Compromise and Reorganization Items," the Company adjusts its accrued liabilities relating to rejected executory contracts when new information becomes available. In the fourth quarter, the Company increased its accruals by $69,154 based upon such new information.

LIABILITIES_SUBJECT_TO_COMPROM5

LIABILITIES SUBJECT TO COMPROMISE AND REORGANIZATION ITEMS (Details Textual) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012
Liabilities Subject To Compromise And Reorganization Items [Line Items]	'	'
Bankruptcy Claims, Last Date to File Claims with Bankruptcy Courts	31-May-13	'
Cash Paid for Reorganization Items	$65,949	$6,437
Service Fee Amount Paid	$14,950	$2,632

SUMMARY_OF_SIGNIFICANT_ACCOUNT2

SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Details Textual) (USD $)

12 Months Ended

36 Months Ended

12 Months Ended

12 Months Ended

In Thousands, unless otherwise specified

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2011

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2013

Accounts Receivable [Member]

Accounts Receivable [Member]

Sales Revenue, Net [Member]

Revolving Credit Facility [Member]

Revolving Credit Facility [Member]

Unsecured Forward Start Credit Facility [Member]

Unsecured Debt [Member]

Unsecured Debt [Member]

Vessals [Member]

International Flag Tankers [Member]

Property, Plant and Equipment, Other Types [Member]

Property, Plant and Equipment, Other Types [Member]

Minimum [Member]

Maximum [Member]

Summary Of Significant Accounting Policies [Line Items]

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Property, Plant and Equipment, Useful Life

'

'

'

'

'

'

'

'

'

'

'

'25 years

'20 years

'0 years

'35 years

Property, Plant, and Equipment, Salvage Value

'

'

'

'

'

'

'

'

'

'

'

$300

'

'

'

Interest Costs Capitalized

0

1,060

6,767

'

'

'

'

'

'

'

'

'

'

'

'

Amortization of Financing Costs

0

15,260

3,023

'

'

'

'

'

'

2,247

445

'

'

'

'

Long-term Debt

2,561,650

2,574,381

'

'

'

'

'

1,500,000

900,000

1,489,000

1,489,000

'

'

'

'

Amortization Of Deferred Financing Costs

0

15,260

3,023

'

'

'

4,603

'

'

'

'

'

'

'

'

Deferred Financing Costs WriteOff

0

12,540

0

'

'

'

'

'

'

'

10,517

'

'

'

'

Income Tax Benefit Rate

50.00%

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Restricted Cash and Cash Equivalents

20,500

3,100

'

'

'

'

'

'

'

'

'

'

'

'

'

Increase In Voyage Charter Revenues And Voyage Expenses

70,817

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Accounts Receivable, Net

$2,024

$2,846

'

'

'

'

'

'

'

'

'

'

'

'

'

Concentration Risk, Percentage

'

'

'

58.00%

59.00%

10.00%

'

'

'

'

'

'

'

'

'

EARNINGS_PER_COMMON_SHARE_Deta

EARNINGS PER COMMON SHARE (Details) (USD $)	3 Months Ended								12 Months Ended
In Thousands, except Share data, unless otherwise specified	Dec. 31, 2013	Sep. 30, 2013	Jun. 30, 2013	Mar. 31, 2013	Dec. 31, 2012	Sep. 30, 2012	Jun. 30, 2012	Mar. 31, 2012	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Earning Per Share [Line Items]	'	'	'	'	'	'	'	'	'	'	'
Net loss	($447,281)	$960	($24,147)	($167,762)	($364,773)	($25,786)	($52,695)	($36,860)	($638,230)	($480,114)	($201,363)
Common shares outstanding, basic and diluted:	'	'	'	'	'	'	'	'	'	'	'
Weighted average shares outstanding, basic and diluted (in shares)	'	'	'	'	'	'	'	'	30,482,818	30,339,258	30,228,441

EARNINGS_PER_COMMON_SHARE_Deta1

EARNINGS PER COMMON SHARE (Details Textual)	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]	'	'	'
Participating Securities Outstanding	221,052	740,594	173,006
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount	1,041,723	2,383,896	1,857,233

BUSINESS_AND_SEGMENT_REPORTING2

BUSINESS AND SEGMENT REPORTING (Details) (USD $)

3 Months Ended

12 Months Ended

In Thousands, unless otherwise specified

Dec. 31, 2013

Sep. 30, 2013

Jun. 30, 2013

Mar. 31, 2013

Dec. 31, 2012

Sep. 30, 2012

Jun. 30, 2012

Mar. 31, 2012

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2011

Segment Reporting Information [Line Items]

'

'

'

'

'

'

'

'

'

'

'

Shipping revenues

$273,102

$267,342

$228,114

$247,438

$255,897

$297,505

$291,354

$292,378

$1,015,996

$1,137,134

$1,049,531

Time charter equivalent revenues

'

'

'

'

'

'

'

'

763,328

840,846

790,201

Depreciation and amortization

'

'

'

'

'

'

'

'

176,276

201,284

179,721

Gain/(loss) on disposal of vessels

-382,614

[1]

-63

[1]

1,228

[1]

-22

[1]

-271,418

[2]

-332

[2]

285

[2]

106

[2]

-365,257

-271,359

2,060

Goodwill and other intangibles impairment charge

'

'

'

'

'

'

'

'

-16,214

0

0

Income/(loss) from vessel operations

'

'

'

'

'

'

'

'

115,033

-15,866

-61,070

Equity in income of affiliated companies

'

'

'

'

'

'

'

'

40,894

33,486

20,555

Total assets

3,644,494

'

'

'

4,043,535

'

'

'

3,644,494

4,043,535

'

Expenditures for vessels

'

'

'

'

'

'

'

'

36,377

52,604

187,510

Payments for drydocking

'

'

'

'

'

'

'

'

22,024

45,990

47,360

U.S. [Member]

'

'

'

'

'

'

'

'

'

'

'

Segment Reporting Information [Line Items]

'

'

'

'

'

'

'

'

'

'

'

Shipping revenues

'

'

'

'

'

'

'

'

436,050

451,803

377,787

Reportable Segment [Member]

'

'

'

'

'

'

'

'

'

'

'

Segment Reporting Information [Line Items]

'

'

'

'

'

'

'

'

'

'

'

Shipping revenues

'

'

'

'

'

'

'

'

1,015,996

1,137,134

1,049,531

Time charter equivalent revenues

'

'

'

'

'

'

'

'

763,328

840,846

790,201

Depreciation and amortization

'

'

'

'

'

'

'

'

176,276

201,284

179,721

Gain/(loss) on disposal of vessels

'

'

'

'

'

'

'

'

-365,257

-271,359

2,060

Goodwill and other intangibles impairment charge

'

'

'

'

'

'

'

'

-16,214

'

'

Income/(loss) from vessel operations

'

'

'

'

'

'

'

'

115,033

-15,866

-61,070

Equity in income of affiliated companies

'

'

'

'

'

'

'

'

40,894

33,486

20,555

Investments in affiliated companies

323,327

'

'

'

252,398

'

'

'

323,327

252,398

232,370

Total assets

3,007,315

'

'

'

3,486,172

'

'

'

3,007,315

3,486,172

3,875,444

Expenditures for vessels

'

'

'

'

'

'

'

'

36,377

52,604

187,510

Payments for drydocking

'

'

'

'

'

'

'

'

22,024

45,990

47,360

Reportable Segment [Member] | International Crude Tankers Segment [Member]

'

'

'

'

'

'

'

'

'

'

'

Segment Reporting Information [Line Items]

'

'

'

'

'

'

'

'

'

'

'

Shipping revenues

'

'

'

'

'

'

'

'

352,871

343,541

337,137

Time charter equivalent revenues

'

'

'

'

'

'

'

'

209,876

256,843

266,429

Depreciation and amortization

'

'

'

'

'

'

'

'

76,086

83,558

74,392

Gain/(loss) on disposal of vessels

'

'

'

'

'

'

'

'

-328,146

-102,242

673

Goodwill and other intangibles impairment charge

'

'

'

'

'

'

'

'

-16,214

'

'

Income/(loss) from vessel operations

'

'

'

'

'

'

'

'

-17,806

-70,909

-71,033

Equity in income of affiliated companies

'

'

'

'

'

'

'

'

29,746

18,658

8,985

Investments in affiliated companies

271,009

'

'

'

241,198

'

'

'

271,009

241,198

211,406

Total assets

1,356,796

'

'

'

1,739,740

'

'

'

1,356,796

1,739,740

1,848,531

Expenditures for vessels

'

'

'

'

'

'

'

'

26,106

33,488

45,654

Payments for drydocking

'

'

'

'

'

'

'

'

8,003

20,063

16,600

Reportable Segment [Member] | International Product Carriers Segment [Member]

'

'

'

'

'

'

'

'

'

'

'

Segment Reporting Information [Line Items]

'

'

'

'

'

'

'

'

'

'

'

Shipping revenues

'

'

'

'

'

'

'

'

223,789

331,634

321,322

Time charter equivalent revenues

'

'

'

'

'

'

'

'

146,711

171,881

178,823

Depreciation and amortization

'

'

'

'

'

'

'

'

29,465

43,239

35,385

Gain/(loss) on disposal of vessels

'

'

'

'

'

'

'

'

-38,395

-160,706

-71

Goodwill and other intangibles impairment charge

'

'

'

'

'

'

'

'

0

'

'

Income/(loss) from vessel operations

'

'

'

'

'

'

'

'

22,077

-59,111

-42,021

Equity in income of affiliated companies

'

'

'

'

'

'

'

'

0

0

0

Investments in affiliated companies

4,505

'

'

'

6,000

'

'

'

4,505

6,000

3,855

Total assets

544,062

'

'

'

620,731

'

'

'

544,062

620,731

878,884

Expenditures for vessels

'

'

'

'

'

'

'

'

7,607

18,563

79,492

Payments for drydocking

'

'

'

'

'

'

'

'

2,270

7,166

14,166

Reportable Segment [Member] | International Other Segment [Member]

'

'

'

'

'

'

'

'

'

'

'

Segment Reporting Information [Line Items]

'

'

'

'

'

'

'

'

'

'

'

Shipping revenues

'

'

'

'

'

'

'

'

3,286

10,156

13,285

Time charter equivalent revenues

'

'

'

'

'

'

'

'

3,225

10,071

13,228

Depreciation and amortization

'

'

'

'

'

'

'

'

2,818

5,392

5,809

Gain/(loss) on disposal of vessels

'

'

'

'

'

'

'

'

117

8,085

-29

Goodwill and other intangibles impairment charge

'

'

'

'

'

'

'

'

0

'

'

Income/(loss) from vessel operations

'

'

'

'

'

'

'

'

-3,104

-4,243

-828

Equity in income of affiliated companies

'

'

'

'

'

'

'

'

7,542

11,378

7,157

Investments in affiliated companies

44,278

'

'

'

1,700

'

'

'

44,278

1,700

12,669

Total assets

44,591

'

'

'

2,333

'

'

'

44,591

2,333

22,395

Expenditures for vessels

'

'

'

'

'

'

'

'

-3

6

0

Payments for drydocking

'

'

'

'

'

'

'

'

0

0

0

Reportable Segment [Member] | U.S. [Member]

'

'

'

'

'

'

'

'

'

'

'

Segment Reporting Information [Line Items]

'

'

'

'

'

'

'

'

'

'

'

Shipping revenues

'

'

'

'

'

'

'

'

436,050

451,803

377,787

Time charter equivalent revenues

'

'

'

'

'

'

'

'

403,516

402,051

331,721

Depreciation and amortization

'

'

'

'

'

'

'

'

67,907

69,095

64,135

Gain/(loss) on disposal of vessels

'

'

'

'

'

'

'

'

1,167

-16,496

1,487

Goodwill and other intangibles impairment charge

'

'

'

'

'

'

'

'

0

'

'

Income/(loss) from vessel operations

'

'

'

'

'

'

'

'

113,866

118,397

52,812

Equity in income of affiliated companies

'

'

'

'

'

'

'

'

3,606

3,450

4,413

Investments in affiliated companies

3,535

'

'

'

3,500

'

'

'

3,535

3,500

4,440

Total assets

1,061,866

'

'

'

1,123,368

'

'

'

1,061,866

1,123,368

1,125,634

Expenditures for vessels

'

'

'

'

'

'

'

'

2,667

547

62,364

Payments for drydocking

'

'

'

'

'

'

'

'

$11,751

$18,761

$16,594

[1]

As discussed in Note 7, "Vessels, Deferred Drydock and Other Property," vessel impairment charges aggregating $365,976 were recorded in the fourth quarter. Further, as discussed in Note 10, "Goodwill and Intangible Assets," impairment charges aggregating $16,214 for goodwill and intangible assets related to the International Crude Tankers Lightering business were recorded in the fourth quarter.

[2]

As discussed in Note 7, "Vessels, Deferred Drydock and Other Property," impairment charges aggregating $279,382 were recorded in the fourth quarter.

BUSINESS_AND_SEGMENT_REPORTING3

BUSINESS AND SEGMENT REPORTING (Details 1) (USD $)	3 Months Ended								12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2013	Sep. 30, 2013	Jun. 30, 2013	Mar. 31, 2013	Dec. 31, 2012	Sep. 30, 2012	Jun. 30, 2012	Mar. 31, 2012	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Segment Reporting Information [Line Items]	'	'	'	'	'	'	'	'	'	'	'
Time charter equivalent revenues	'	'	'	'	'	'	'	'	$763,328	$840,846	$790,201
Add: Voyage expenses	'	'	'	'	'	'	'	'	252,668	296,288	259,330
Shipping revenues	$273,102	$267,342	$228,114	$247,438	$255,897	$297,505	$291,354	$292,378	$1,015,996	$1,137,134	$1,049,531

BUSINESS_AND_SEGMENT_REPORTING4

BUSINESS AND SEGMENT REPORTING (Details 2) (USD $)

3 Months Ended

12 Months Ended

In Thousands, unless otherwise specified

Dec. 31, 2013

Sep. 30, 2013

Jun. 30, 2013

Mar. 31, 2013

Dec. 31, 2012

Sep. 30, 2012

Jun. 30, 2012

Mar. 31, 2012

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2011

Segment Reporting Information [Line Items]

'

'

'

'

'

'

'

'

'

'

'

Total income/(loss) from vessel operations of all segments

'

'

'

'

'

'

'

'

$115,033

($15,866)

($61,070)

General and administrative expenses

'

'

'

'

'

'

'

'

-97,663

-88,845

-83,178

Severance and relocation costs

'

'

'

'

'

'

'

'

-3,097

-3,163

0

Goodwill and other intangibles impairment charge

'

'

'

'

'

'

'

'

-16,214

0

0

(Loss)/gain on disposal of vessels, including impairments

-382,614

[1]

-63

[1]

1,228

[1]

-22

[1]

-271,418

[2]

-332

[2]

285

[2]

106

[2]

-365,257

-271,359

2,060

Consolidated loss from vessel operations

-376,619

7,768

432

1,221

-311,224

-13,928

-30,439

-23,642

-367,198

-379,233

-142,188

Equity in income of affiliated companies

'

'

'

'

'

'

'

'

40,894

33,486

20,555

Other income/(expense)

'

'

'

'

'

'

'

'

849

-1,314

2,154

Interest Expense

-28

-3

-31

-288

-25,013

[3]

-23,314

[3]

-22,084

[3]

-23,010

[3]

-350

-93,421

-79,898

Loss before reorganization items and income taxes

'

'

'

'

'

'

'

'

($325,805)

($440,482)

($199,377)

[1]

As discussed in Note 7, "Vessels, Deferred Drydock and Other Property," vessel impairment charges aggregating $365,976 were recorded in the fourth quarter. Further, as discussed in Note 10, "Goodwill and Intangible Assets," impairment charges aggregating $16,214 for goodwill and intangible assets related to the International Crude Tankers Lightering business were recorded in the fourth quarter.

[2]

As discussed in Note 7, "Vessels, Deferred Drydock and Other Property," impairment charges aggregating $279,382 were recorded in the fourth quarter.

[3]

As discussed in Note 2, "Bankruptcy Filing and Going Concern," and Note 11, "Debt," the Debtors filed a petition for relief under Chapter 11 and its debt agreements are classified as Liabilities Subject to Compromise. From November 14, 2012 to December 31, 2012, interest expense of $9,395 was accordingly not recorded.

BUSINESS_AND_SEGMENT_REPORTING5

BUSINESS AND SEGMENT REPORTING (Details 3) (USD $)	Dec. 31, 2013	Dec. 31, 2012
In Thousands, unless otherwise specified
Segment Reporting Information [Line Items]	'	'
Total assets	$3,644,494	$4,043,535
Operating Segments [Member]	'	'
Segment Reporting Information [Line Items]	'	'
Total assets	3,007,315	3,486,172
Corporate Assets [Member]	'	'
Segment Reporting Information [Line Items]	'	'
Total assets	601,927	507,342
Unallocated Amount To Segment [Member]	'	'
Segment Reporting Information [Line Items]	'	'
Total assets	$35,252	$50,021

BUSINESS_AND_SEGMENT_REPORTING6

BUSINESS AND SEGMENT REPORTING (Details 4) (USD $)	3 Months Ended								12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2013	Sep. 30, 2013	Jun. 30, 2013	Mar. 31, 2013	Dec. 31, 2012	Sep. 30, 2012	Jun. 30, 2012	Mar. 31, 2012	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Segment Reporting Information [Line Items]	'	'	'	'	'	'	'	'	'	'	'
Shipping revenues	$273,102	$267,342	$228,114	$247,438	$255,897	$297,505	$291,354	$292,378	$1,015,996	$1,137,134	$1,049,531
Total vessels, deferred drydock and other property at December 31	2,416,600	'	'	'	2,911,706	'	'	'	2,416,600	2,911,706	'
Consolidated [Member]	'	'	'	'	'	'	'	'	'	'	'
Segment Reporting Information [Line Items]	'	'	'	'	'	'	'	'	'	'	'
Shipping revenues	'	'	'	'	'	'	'	'	1,015,996	1,137,134	1,049,531
Total vessels, deferred drydock and other property at December 31	2,416,600	'	'	'	2,911,706	'	'	'	2,416,600	2,911,706	3,292,946
International [Member]	'	'	'	'	'	'	'	'	'	'	'
Segment Reporting Information [Line Items]	'	'	'	'	'	'	'	'	'	'	'
Shipping revenues	'	'	'	'	'	'	'	'	579,946	685,331	671,744
Total vessels, deferred drydock and other property at December 31	1,459,220	'	'	'	1,902,728	'	'	'	1,459,220	1,902,728	2,293,011
U.S. [Member]	'	'	'	'	'	'	'	'	'	'	'
Segment Reporting Information [Line Items]	'	'	'	'	'	'	'	'	'	'	'
Shipping revenues	'	'	'	'	'	'	'	'	436,050	451,803	377,787
Total vessels, deferred drydock and other property at December 31	$957,380	'	'	'	$1,008,978	'	'	'	$957,380	$1,008,978	$999,935

VESSELS_DEFERRED_DRYDOCK_AND_O2

VESSELS, DEFERRED DRYDOCK AND OTHER PROPERTY (Details) (USD $)	Dec. 31, 2013	Dec. 31, 2012
In Thousands, unless otherwise specified
Property, Plant and Equipment [Line Items]	'	'
Construction in progress	$54,644	$95,283
Net Carrying Value	2,359,352	2,837,288
Vessels [Member]	'	'
Property, Plant and Equipment [Line Items]	'	'
Cost	2,784,023	3,307,813
Accumulated depreciation and amortization	-495,391	-591,256
Net Carrying Value	2,288,632	2,716,557
Other property [Member]	'	'
Property, Plant and Equipment [Line Items]	'	'
Cost	45,633	71,306
Accumulated depreciation and amortization	-29,557	-45,858
Net Carrying Value	$16,076	$25,448

VESSELS_DEFERRED_DRYDOCK_AND_O3

VESSELS, DEFERRED DRYDOCK AND OTHER PROPERTY (Details 1) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2013		Dec. 31, 2012
	Vessels		Vessels
Property, Plant and Equipment [Line Items]	'		'
Net Carrying Value	$2,359,352		$2,837,288
Vessels [Member]	'		'
Property, Plant and Equipment [Line Items]	'		'
Cost	2,784,023		3,307,813
Accumulated Depreciation	-495,391		-591,256
Net Carrying Value	2,288,632		2,716,557
Average Vessel Age	9.8		9
Number Of Owned Vessels	61		60
Vessels [Member] | U S [Member]	'		'
Property, Plant and Equipment [Line Items]	'		'
Cost	1,150,740	[1]	1,150,879
Accumulated Depreciation	-215,158	[1]	-167,502
Net Carrying Value	935,582	[1]	983,377
Average Vessel Age	7.2	[1]	6.2
Number Of Owned Vessels	15	[1]	15
Vessels [Member] | International Crude Tankers Segment [Member]	'		'
Property, Plant and Equipment [Line Items]	'		'
Cost	1,147,537		1,617,851
Accumulated Depreciation	-222,314		-377,004
Net Carrying Value	925,223		1,240,847
Average Vessel Age	10.6		9.8
Number Of Owned Vessels	29		28
Vessels [Member] | International Crude Tankers Segment [Member] | Very Large Crude Carrier Vessel [Member]	'		'
Property, Plant and Equipment [Line Items]	'		'
Cost	722,863		869,186
Accumulated Depreciation	-164,911		-157,359
Net Carrying Value	557,952	[2]	711,827
Average Vessel Age	10.5		9.5
Number Of Owned Vessels	11		11
Vessels [Member] | International Crude Tankers Segment [Member] | Suezmaxes [Member]	'		'
Property, Plant and Equipment [Line Items]	'		'
Cost	'		734
Accumulated Depreciation	'		-450
Net Carrying Value	'		284
Average Vessel Age	'		'
Number Of Owned Vessels	'		0
Vessels [Member] | International Crude Tankers Segment [Member] | Aframaxes Vessel [Member]	'		'
Property, Plant and Equipment [Line Items]	'		'
Cost	279,506		279,947
Accumulated Depreciation	-57,403		-69,321
Net Carrying Value	222,103	[3]	210,626
Average Vessel Age	10.7		11
Number Of Owned Vessels	9		8
Vessels [Member] | International Crude Tankers Segment [Member] | Panamaxes [Member]	'		'
Property, Plant and Equipment [Line Items]	'		'
Cost	145,168		467,984
Accumulated Depreciation	0		-149,874
Net Carrying Value	145,168		318,110
Average Vessel Age	11.1		10.1
Number Of Owned Vessels	9		9
Vessels [Member] | International Product Carriers Segment [Member]	'		'
Property, Plant and Equipment [Line Items]	'		'
Cost	485,746		539,083
Accumulated Depreciation	-57,919		-46,750
Net Carrying Value	427,827	[4]	492,333
Average Vessel Age	7.2		6.2
Number Of Owned Vessels	17		17
Vessels [Member] | International Product Carriers Segment [Member] | Panamax [Member]	'		'
Property, Plant and Equipment [Line Items]	'		'
Cost	196,470		249,028
Accumulated Depreciation	-31,856		-33,078
Net Carrying Value	164,614		215,950
Average Vessel Age	5.1		4.1
Number Of Owned Vessels	4		4
Vessels [Member] | International Product Carriers Segment [Member] | Handysize Product Carrier Vessel [Member]	'		'
Property, Plant and Equipment [Line Items]	'		'
Cost	289,276		290,055
Accumulated Depreciation	-26,063		-13,672
Net Carrying Value	$263,213		$276,383
Average Vessel Age	8.2		7.2
Number Of Owned Vessels	13		13
[1]	Includes one International Flag Handysize Product Carrier that is owned by a U.S. domiciled corporation.
[2]	Includes five VLCCs that are pledged as collateral under secured term loans due through 2023, as discussed in Note 11, 'Debt,' with an aggregate carrying value of $269,127.
[3]	Includes three Aframaxes that are pledged as collateral under secured term loans due through 2023, as discussed in Note 11, 'Debt,' with an aggregate carrying value of $69,180.
[4]	Includes five Handysize Product Carriers and two Panamax Product Carriers that are pledged as collateral under secured term loans due through 2020, as discussed in Note 11, 'Debt,' with an aggregate carrying value of $143,880.

VESSELS_DEFERRED_DRYDOCK_AND_O4

VESSELS, DEFERRED DRYDOCK AND OTHER PROPERTY (Details 2) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Net Book Value	'	'	'
Ending Balance	$2,359,352	$2,837,288	'
Vessel [Member]	'	'	'
Vessel Cost	'	'	'
Beginning Balance	3,307,813	3,776,344	3,045,023
Purchases and vessel additions	2,809	7,983	38,203
Transfers from construction in progress	71,553	189,105	710,793
Disposals and transfers to held for sale	-4,951	-29,653	-17,675
Impairment	-593,201	-635,966	'
Ending Balance	2,784,023	3,307,813	3,776,344
Accumulated Depreciation	'	'	'
Beginning Balance	-591,256	-818,555	-686,055
Disposals	1,837	25,104	7,523
Depreciation	-133,197	-154,997	-140,023
Impairment	227,225	357,192	'
Ending Balance	-495,391	-591,256	-818,555
Net Book Value	'	'	'
Beginning Balance	2,716,557	2,957,789	2,358,968
Ending Balance	$2,288,632	$2,716,557	$2,957,789

VESSELS_DEFERRED_DRYDOCK_AND_O5

VESSELS, DEFERRED DRYDOCK AND OTHER PROPERTY (Details 3) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Property, Plant and Equipment [Line Items]	'	'	'
Beginning Balance	$74,418	$66,023	$46,827
Payments for drydocking	22,024	45,990	47,360
Sub-total	96,442	112,013	94,187
Drydock amortization	-32,648	-34,382	-27,680
Amounts recognized upon sale/redelivery of vessels and non-cash adjustments	-6,546	-2,605	-484
Impairments	0	-608	0
Ending Balance	$57,248	$74,418	$66,023

VESSELS_DEFERRED_DRYDOCK_AND_O6

VESSELS, DEFERRED DRYDOCK AND OTHER PROPERTY (Details Textual) (USD $)

0 Months Ended

1 Months Ended

12 Months Ended

12 Months Ended

12 Months Ended

In Thousands, unless otherwise specified

Mar. 13, 2009

Oct. 31, 2011

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2011

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2011

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2009

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2013

Very Large Crude Carrier Vessel [Member]

Handysize Product Carrier Vessel [Member]

Us Flag [Member]

Us Flag [Member]

Us Flag [Member]

CEXIM Term Loan [Member]

DSF Term Loan [Member]

Bender Shipbuilding and Repair Company Incorporated [Member]

Vessels [Member]

Vessels [Member]

Vessels [Member]

Vessels [Member]

Vessels [Member]

Vessels [Member]

Vessels [Member]

Vessels [Member]

Vessels [Member]

Vessels [Member]

Vessels [Member]

Vessels [Member]

Tug Boat Vessel [Member]

Capital Addition Purchase Commitments [Member]

Capital Addition Purchase Commitments [Member]

International Crude Tankers Segment [Member]

International Crude Tankers Segment [Member]

International Crude Tankers Segment [Member]

International Crude Tankers Segment [Member]

International Crude Tankers Segment [Member]

International Crude Tankers Segment [Member]

International Crude Tankers Segment [Member]

International Crude Tankers Segment [Member]

International Crude Tankers Segment [Member]

International Crude Tankers Segment [Member]

Aframaxes Vessel [Member]

Very Large Crude Carrier Vessel [Member]

Very Large Crude Carrier Vessel [Member]

Aframaxes Vessel [Member]

Aframaxes Vessel [Member]

Securities Pledged as Collateral [Member]

Securities Pledged as Collateral [Member]

Securities Pledged as Collateral [Member]

Securities Pledged as Collateral [Member]

Very Large Crude Carrier Vessel [Member]

Aframaxes Vessel [Member]

Handysize Product Carrier Vessel [Member]

Panamax Product Carrier Vessel [Member]

Vessels

Vessels

Vessels

Vessels

Property, Plant and Equipment [Line Items]

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Commitments for vessels to be wholly owned

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

$34,885

'

Gain (Loss) on disposition of property

'

'

1,182

8,023

2,060

'

'

1,167

8,078

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Gain (Loss) on Sale of Other Assets

'

1,464

'

'

4,583

'

'

'

'

2,117

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Long Lived Assets Held-for-sale, Impairment Charge

'

'

'

'

'

462

94,288

'

1,037

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Asset Impairment Charges, Total

'

'

365,976

278,345

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Vessels and other property, less accumulated depreciation

'

'

2,359,352

2,837,288

'

'

'

'

'

'

'

'

'

2,288,632

2,716,557

925,223

1,240,847

557,952

[1]

711,827

222,103

[2]

210,626

343,590

78,462

143,880

143,880

'

'

'

Number Of Vessels

'

'

'

'

'

'

'

'

'

'

'

'

'

11

'

'

'

'

'

'

'

5

3

5

2

'

'

'

Scheduled delivery of vessels under contract

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'June and September 2011.

'

'second quarter of 2014.

Reduction In Deferred Drydock Costs

'

'

608

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Payment Of Cash Up On Contract Termination

14,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Gain Loss On Disposal And Impairment Of Property And Equipment

'

'

'

588

3,400

'

'

'

'

3,400

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Property, Plant, and Equipment, Additional Disclosures

'

'

'

'the Company completed construction of a VLCC and an International Flag Handysize Product Carrier.

'the Company completed construction of a U.S. Flag ATB, two International Flag Panamax Product Carriers, one VLCC, an International Flag Handysize Product Carrier and two tug boats.

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Significant Acquisitions and Disposals, Terms

'

'

'

'

'

'

'

'

'

'

'

'

'Under the terms of the agreement, Bender agreed to transfer ownership of the unfinished vessels (and all related components and equipment) to OSG in their current state of completion in consideration for which OSG would, among other things render a payment of $14,000 to a third party for the release of priority liens on the vessels being transferred to the Company.

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Property, Plant and Equipment Income Statement Disclosures

'

'

'

'

'two remaining single-hulled U.S. Flag Tankers (one of which was classified as held for sale on the December 31, 2010 consolidated balance sheet) and the remaining chartered-in single-hulled International Flag Aframax in which it had a residual interest to buyers.

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Broker Commission Percentage

'

'

2.00%

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Unsecured Revolving Credit Facility Holding Percentage

'

'

72.00%

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Impairment of Long-Lived Assets Held-for-use

'

'

$366,439

$279,382

$0

'

'

'

'

'

$173,190

$38,301

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

[1]

Includes five VLCCs that are pledged as collateral under secured term loans due through 2023, as discussed in Note 11, 'Debt,' with an aggregate carrying value of $269,127.

[2]

Includes three Aframaxes that are pledged as collateral under secured term loans due through 2023, as discussed in Note 11, 'Debt,' with an aggregate carrying value of $69,180.

EQUITY_METHOD_INVESTMENTS_Deta

EQUITY METHOD INVESTMENTS (Details) (USD $)	Dec. 31, 2013	Dec. 31, 2012
In Thousands, unless otherwise specified
Schedule of Equity Method Investments [Line Items]	'	'
Current assets	$197,625	$155,142
Vessels, net	1,576,692	1,640,910
Other assets	53,274	60,362
Total assets	1,827,591	1,856,414
Current liabilities	179,913	225,551
Long-term debt and other non-current liabilities	1,548,484	1,680,178
Equity/(accumulated deficit)	99,194	-49,315
Total liabilities and equity/(accumulated deficit)	$1,827,591	$1,856,414

EQUITY_METHOD_INVESTMENTS_Deta1

EQUITY METHOD INVESTMENTS (Details 1) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Schedule of Equity Method Investments [Line Items]	'	'	'
Shipping revenues	$384,040	$368,802	$354,559
Ship operating expenses	-248,924	-240,950	-239,885
Income from vessel operations	135,116	127,852	114,674
Other expense	-1,588	-1,419	-1,364
Interest expense	-54,007	-65,936	-74,828
Net income	$79,521	$60,497	$38,482

EQUITY_METHOD_INVESTMENTS_Deta2

EQUITY METHOD INVESTMENTS (Details Textual) (USD $)

12 Months Ended

1 Months Ended

12 Months Ended

12 Months Ended

12 Months Ended

In Thousands, unless otherwise specified

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2011

Aug. 29, 2013

Nov. 30, 2004

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2011

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2012

Liquid Natural Gas Carrier Vessel [Member]

Ti Africa Vessel [Member]

Ti Africa Vessel [Member]

Ti Africa Vessel [Member]

Ti Asia Vessel [Member]

Ti Asia Vessel [Member]

Qatar Gas Transport Company Limited Nakilat Joint Venture [Member]

Qatar Gas Transport Company Limited Nakilat Joint Venture [Member]

Qatar Gas Transport Company Limited Nakilat Joint Venture [Member]

Qatar Gas Transport Company Limited Nakilat Joint Venture and Euronav Nv Joint Venture [Member]

Euronav Nv Joint Venture [Member]

Euronav Nv Joint Venture [Member]

Euronav Nv Joint Venture [Member]

Euronav Nv Joint Venture [Member]

Euronav Nv Joint Venture [Member]

Euronav Nv Joint Venture [Member]

Alaska Tanker Company LLC [Member]

Qatar Liquefied Gas Company Limited [Member]

Qatar Liquefied Gas Company Limited [Member]

Liquid Natural Gas Carrier Vessel [Member]

Liquid Natural Gas Carrier Vessel [Member]

Minimum [Member]

Maximum [Member]

Ti Africa Vessel [Member]

Ti Asia Vessel [Member]

Liquid Natural Gas Carrier Vessel [Member]

Liquid Natural Gas Carrier Vessel [Member]

Minimum [Member]

Maximum [Member]

Schedule of Equity Method Investments [Line Items]

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Equity Method Investment, Ownership Percentage

50.00%

'

'

'

49.90%

'

'

'

'

'

'

'

'

'

50.00%

'

'

'

'

'

37.50%

'

'

Equity Method Investment, Description Of Principal Activities

'

'

'

'

'

'

'

'

'

'

'

'

'

'operates four LNG Carriers

'Maersk Oil Qatar AS (MOQ) awarded two service contracts to a joint venture between OSG and Euronav NV

'

'

'

'

'

'

'

'

Line of Credit Facility, Amount Outstanding

$750,576

$783,839

'

'

'

'

'

'

'

'

'

'

'

'

$196,500

$246,326

'

'

'

'

'

'

'

Debt Instrument, Periodic Payment

6,250

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Debt Instrument, Date of First Required Payment

30-Nov-13

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Debt Instrument, Interest Rate, Basis for Effective Rate

'50 basis points

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Guarantee Obligations Noncurrent Carrying Value

'

'

'

'

'

'

'

'

'

'

'

'

'

'

0

29

'

'

'

'

'

'

'

Notional Amount of Interest Rate Cash Flow Hedge Derivatives

'

'

'

'

'

'

'

'

'

'

'

'

'

'

304,472

351,987

'

'

'

'

'

'

'

Derivative, Fixed Interest Rate

'

'

'

'

'

'

'

'

'

'

'

'

'

4.90%

3.90%

'

'

'

'

'

'

'

'

Gain (Loss) on Discontinuation of Interest Rate Cash Flow Hedge Due to Forecasted Transaction Probable of Not Occurring, Net

'

'

'

'

'

-280

2,216

6,574

'

'

'

'

'

'

'

'

'

'

'

'

'

108,725

181,958

Interest Rate Cash Flow Hedge Liability at Fair Value

'

'

'

'

'

'

'

'

'

'

'

'

'

'

22,083

34,872

'

'

'

'

'

'

'

Storage Volume

'

'

'

'

'

'

'

'

'

'

'four 216,200 cbm

'

'

'

'

'

'

'

'

'

'

'

'

Initial Term Of Contract

'

'

'

'

'25 years

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Derivative, Maturity Date

'

'

'

'

'

'

'

'

'

'

'

31-Jul-22

30-Nov-22

'

'

'

31-Jul-17

30-Sep-17

'

'

'

'

'

Debt Instrument Amount Outstanding

947,076

1,030,165

'

45,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Effective Portion of Gain/(Loss) Reclassified from Accumulated Other Comprehensive Loss

'

7,697

10,074

'

'

'

'

'

5,064

8,206

'

'

'

'

'

'

'

'

'

'

'

54,199

90,731

Debt Instrument Final Payment

1,250

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Guarantor Obligations, Liquidation Proceeds, Percentage

'

'

'

'

'

'

'

'

'

'

'

'

'

50.00%

'

'

'

'

'

'

'

'

'

Derivative Instruments, Gain (Loss) Recognized in Income, Ineffective Portion and Amount Excluded from Effectiveness Testing, Net, Total

'

0

0

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

727,663

760,293

Increase (Decrease) Due from Affiliates

'

4,103

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Non-Recourse Debt

$750,576

$783,839

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Reconditioned Asset Service Start Date

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

5-Jan-10

30-Aug-10

'

'

'

VARIABLE_INTEREST_ENTITIES_VIE2

VARIABLE INTEREST ENTITIES ("VIEs") (Details) (USD $)	Dec. 31, 2013		Dec. 31, 2012
In Thousands, unless otherwise specified
Variable Interest Entity [Line Items]	'		'
Other liabilities	$42,189		$37,712
Variable Interest Entity, Not Primary Beneficiary [Member]	'		'
Variable Interest Entity [Line Items]	'		'
Investments in Affiliated Companies	275,261		244,258
Other liabilities	$0	[1]	$29	[1]
[1]	Represents the Companybs valuation of its several guarantee of the FSO joint venturebs debt at December 31, 2013 and 2012.

VARIABLE_INTEREST_ENTITIES_VIE3

VARIABLE INTEREST ENTITIES ("VIEs") (Details 1) (USD $)	Dec. 31, 2013		Dec. 31, 2012
In Thousands, unless otherwise specified
Variable Interest Entity [Line Items]	'		'
Other Liabilities	$42,189		$37,712
Variable Interest Entity, Not Primary Beneficiary [Member]	'		'
Variable Interest Entity [Line Items]	'		'
Other Liabilities	0	[1]	29	[1]
Maximum Exposure to Loss	$373,500		'
[1]	Represents the Companybs valuation of its several guarantee of the FSO joint venturebs debt at December 31, 2013 and 2012.

VARIABLE_INTEREST_ENTITIES_VIE4

VARIABLE INTEREST ENTITIES ("VIEs") (Details Textual) (USD $)	Dec. 31, 2013	Dec. 31, 2012
In Thousands, unless otherwise specified	JointVentures
	CommercialPools
Variable Interest Entity [Line Items]	'	'
Number Of Commercial Pools	4	'
Number Of Joint Ventures	3	'
Accounts Receivable, Net, Current	$147,964	$179,259
Variable Interest Entity, Not Primary Beneficiary [Member]	'	'
Variable Interest Entity [Line Items]	'	'
Accounts Receivable, Net, Current	$28,746	'

GOODWILL_AND_INTANGIBLE_ASSETS2

GOODWILL AND INTANGIBLE ASSETS (Details) (USD $)	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2013
In Thousands, unless otherwise specified			International Crude Tankers Segment [Member]
Goodwill [Line Items]	'	'	'
Goodwill Beginning Balance	$0	$9,589	$9,589
Goodwill and other intangibles impairment charge	'	'	-9,589
Goodwill Ending Balance	$0	$9,589	$0

GOODWILL_AND_INTANGIBLE_ASSETS3

GOODWILL AND INTANGIBLE ASSETS (Details 1) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Goodwill And Intangible Assets [Line Items]	'	'	'
Beginning Balance	$71,975	$77,158	$83,137
Amortization	-5,183	-5,183	-5,183
Disposal	'	'	-796
Impairment loss	-6,625	'	'
Ending Balance	60,167	71,975	77,158
International Crude Tankers Segment [Member]	'	'	'
Goodwill And Intangible Assets [Line Items]	'	'	'
Beginning Balance	7,125	7,625	8,921
Amortization	-500	-500	-500
Disposal	'	'	-796
Impairment loss	-6,625	'	'
Ending Balance	0	7,125	7,625
U S Segment [Member]	'	'	'
Goodwill And Intangible Assets [Line Items]	'	'	'
Beginning Balance	64,610	69,277	73,944
Amortization	-4,667	-4,667	-4,667
Disposal	'	'	0
Impairment loss	0	'	'
Ending Balance	59,943	64,610	69,277
Other Segment [Member]	'	'	'
Goodwill And Intangible Assets [Line Items]	'	'	'
Beginning Balance	240	256	272
Amortization	-16	-16	-16
Disposal	'	'	0
Impairment loss	0	'	'
Ending Balance	$224	$240	$256

GOODWILL_AND_INTANGIBLE_ASSETS4

GOODWILL AND INTANGIBLE ASSETS (Details Textual) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012
Goodwill And Intangible Assets [Line Items]	'	'
Finite-Lived Intangible Assets, Gross	$93,331	$103,331
Impairment of Intangible Assets, Finite-lived	6,625	'
Finite-Lived Intangible Assets, Accumulated Amortization	33,164	31,356
Finite-Lived Intangible Assets, Amortization Expense, Next Twelve Months	4,683	'
Finite-Lived Intangible Assets, Amortization Expense, Year Two	4,683	'
Finite-Lived Intangible Assets, Amortization Expense, Year Three	4,683	'
Finite-Lived Intangible Assets, Amortization Expense, Year Four	4,683	'
Finite-Lived Intangible Assets, Amortization Expense, Year Five	4,683	'
International Crude Tankers Segment [Member]	'	'
Goodwill And Intangible Assets [Line Items]	'	'
Goodwill, Impairment Loss	9,589	'
Impairment of Intangible Assets, Finite-lived	$6,625	'

DEBT_Details

DEBT (Details) (USD $)	Dec. 31, 2013	Dec. 31, 2012
In Thousands, unless otherwise specified
Long-term Debt	$2,561,650	$2,574,381
Unsecured Debt [Member]	'	'
Long-term Debt	1,489,000	1,489,000
Notes 8.125 Percent Due 2018 [Member]	'	'
Long-term Debt	297,102	297,102
Notes 7.50 Percent Due 2024 [Member]	'	'
Long-term Debt	146,000	146,000
Debentures 8.75 Percent Due 2013 [Member]	'	'
Long-term Debt	63,592	63,592
Floating Rate Secured Term Loan Due Through 2023 [Member]	'	'
Long-term Debt	$565,956	$578,687

DEBT_Details_Textual

DEBT (Details Textual) (USD $)

3 Months Ended

12 Months Ended

2 Months Ended

12 Months Ended

12 Months Ended

2 Months Ended

12 Months Ended

12 Months Ended

2 Months Ended

12 Months Ended

2 Months Ended

12 Months Ended

1 Months Ended

In Thousands, unless otherwise specified

Dec. 31, 2013

Sep. 30, 2013

Jun. 30, 2013

Mar. 31, 2013

Dec. 31, 2012

Sep. 30, 2012

Jun. 30, 2012

Mar. 31, 2012

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2011

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2012

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2011

Dec. 31, 2011

Dec. 31, 2011

Dec. 31, 2012

Dec. 31, 2013

Dec. 31, 2006

Feb. 29, 2012

Dec. 31, 2012

Dec. 31, 2011

26-May-11

Dec. 31, 2012

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2011

Dec. 31, 2011

Jan. 18, 2012

Dec. 31, 2013

Dec. 31, 2013

Vessels

Vessels

CEXIM Loan [Member]

DSF Loan [Member]

Notes 8.125 Percent Due 2018 [Member]

Notes 8.125 Percent Due 2018 [Member]

Notes 7.50 Percent Due 2024 [Member]

Notes 7.50 Percent Due 2024 [Member]

Debentures 8.75 Percent Due 2013 [Member]

Debentures 8.75 Percent Due 2013 [Member]

Term loans maturing in 2023 [Member]

Term loans maturing in 2023 [Member]

Term loans maturing in 2023 [Member]

Term loans maturing in 2023 [Member]

Term loans maturing in 2023 [Member]

Term loans maturing in 2023 [Member]

Unsecured Revolving Credit Facility [Member]

Unsecured Revolving Credit Facility [Member]

Unsecured Revolving Credit Facility [Member]

Unsecured Revolving Credit Facility [Member]

Unsecured Forward Start Revolving Credit Agreement [Member]

Unsecured Forward Start Revolving Credit Agreement [Member]

Unsecured Forward Start Revolving Credit Agreement [Member]

Unsecured Senior Notes [Member]

Unsecured Senior Notes [Member]

Term loans maturing in 2020 [Member]

Term loans maturing in 2020 [Member]

Term loans maturing in 2020 [Member]

Term loans maturing in 2020 [Member]

Term loans maturing in 2020 [Member]

Term loans maturing in 2016 [Member]

Export- Import Bank of China (CEXIM) [Member]

Danish Ship Finance (DSP) [Member]

After Amendment through January 2013 [Member]

Before Amendment [Member]

Line Of Credit [Member]

Line Of Credit [Member]

After Amendment through January 2013 [Member]

Before Amendment [Member]

Debt Instrument [Line Items]

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Debt Instrument, Interest Rate, Stated Percentage

'

'

'

'

'

'

'

'

'

'

'

'

'

8.13%

8.13%

7.50%

7.50%

8.75%

8.75%

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Debt Instrument Maturity Year

'

'

'

'

'

'

'

'

'

'

'

'

'

'2018

'2018

'2024

'2024

'

'2013

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Debt Instrument, Unamortized Discount

'

'

'

'

'

'

'

'

'

'

'

'

'

$2,898

$2,898

'

'

$11

$11

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Line Of Credit Maturity Period

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'7 years

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Debt Instrument, Maturity Date

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

8-Feb-13

'

'

31-Dec-16

'

'

'

'

'

'

'

'

'

'

'

Debt Instrument, Face Amount

'

'

'

'

'

'

'

'

'

'

'

'

'

300,000

'

146,000

'

63,603

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Interest Expense

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

1,295

9,011

'

'

'

'

2,091

14,433

'

'

'

'

'

5,529

42,355

'

'

'

'

'

'

'

'

Amortization of Financing Costs

'

'

'

'

'

'

'

'

0

15,260

3,023

'

'

'

'

'

'

'

'

36

284

'

'

'

'

185

237

'

'

'

'

'

190

1,463

34

263

'

'

'

'

'

'

Debt Instrument Collateral Number Of Vessels

15

'

'

'

'

'

'

'

15

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Net Book Value Of Vessels Percent Pledged As Collateral For Debt Instruments

24.00%

'

'

'

'

'

'

'

24.00%

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Minimum Required Loan To Value Ratio

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

91.00%

86.00%

'

125.00%

105.00%

'

'

'

'

'

'

'

'

'

'

97.00%

84.00%

110.00%

100.00%

'

'

'

Interest Paid, Net

'

'

'

'

'

'

'

'

0

88,849

84,054

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Letters of Credit Outstanding, Amount

9,146

'

'

'

'

'

'

'

9,146

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Debtor-in-Possession Financing, Date Arrangement Approved by Bankruptcy Court

'

'

'

'

'

'

'

'

5-Feb-13

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Debtor-in-Possession Financing, Amount Arranged

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

15,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

10,000

'

'

'

'

'

'

Prepayment Of Long Term Debt

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

49,000

'

'

Line of Credit Facility, Maximum Borrowing Capacity

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

1,800,000

'

1,800,000

1,500,000

'

'

900,000

'

'

'

'

'

'

'

'

'

'

Line of Credit Facility, Amount Outstanding

750,576

'

'

'

783,839

'

'

'

750,576

783,839

'

'

'

'

'

'

'

'

'

311,751

302,585

311,751

'

'

'

'

'

'

'

'

'

'

'

'

266,936

263,371

266,936

'

'

'

'

'

Interest Expense, Total

28

3

31

288

25,013

[1]

23,314

[1]

22,084

[1]

23,010

[1]

350

93,421

79,898

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

480

3,482

'

'

'

'

'

'

Amortization Of Financing Costs

'

'

'

'

'

'

'

'

0

15,260

3,023

'

'

'

'

'

'

'

'

36

284

'

'

'

'

185

237

'

'

'

'

'

190

1,463

34

263

'

'

'

'

'

'

Line Of Credit Facility Reduction Amount

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

28,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Unamortization Deferred Finance Costs

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

422

'

'

'

'

'

'

'

'

'

'

'

'

'

2,955

1,266

Long-term Debt, Gross

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

9,166

3,565

Deferred Financing Costs WriteOff

'

'

'

'

'

'

'

'

0

12,540

0

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

12,540

'

'

'

'

'

'

'

'

'

'

'

'

DIP Loan Receivable

'

'

'

'

'

'

'

'

'

'

'

$3,217

$760

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

[1]

As discussed in Note 2, "Bankruptcy Filing and Going Concern," and Note 11, "Debt," the Debtors filed a petition for relief under Chapter 11 and its debt agreements are classified as Liabilities Subject to Compromise. From November 14, 2012 to December 31, 2012, interest expense of $9,395 was accordingly not recorded.

FAIR_VALUE_OF_FINANCIAL_INSTRU2

FAIR VALUE OF FINANCIAL INSTRUMENTS, DERIVATIVES AND FAIR VALUE DISCLOSURES (Details) (USD $)	Dec. 31, 2013	Dec. 31, 2012
In Thousands, unless otherwise specified
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]	'	'
Cash and cash equivalents	$601,927	$507,342
Unsecured Senior Notes	-559,441	-181,504
Fair Value, Inputs, Level 1 [Member]	'	'
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]	'	'
Cash and cash equivalents	601,927	507,342
Unsecured Senior Notes	0	0
Fair Value, Inputs, Level 2 [Member]	'	'
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]	'	'
Cash and cash equivalents	0	0
Unsecured Senior Notes	($559,441)	($181,504)

FAIR_VALUE_OF_FINANCIAL_INSTRU3

FAIR VALUE OF FINANCIAL INSTRUMENTS, DERIVATIVES AND FAIR VALUE DISCLOSURES (Details 1) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]	'	'	'
Unrealized losses on derivative instruments	$19,114	($20,709)	($65,317)
Interest Rate Swap [Member]	'	'	'
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]	'	'	'
Unrealized losses on derivative instruments	$19,114	($20,709)	($65,317)

FAIR_VALUE_OF_FINANCIAL_INSTRU4

FAIR VALUE OF FINANCIAL INSTRUMENTS, DERIVATIVES AND FAIR VALUE DISCLOSURES (Details 2) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2012	Dec. 31, 2011
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]	'	'
Effective Portion of Gain/(Loss) Reclassified from Accumulated Other Comprehensive Loss	($7,697)	($10,074)
Ineffective Portion	0	0
Interest Rate Swap [Member] | Interest Expense [Member]	'	'
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]	'	'
Effective Portion of Gain/(Loss) Reclassified from Accumulated Other Comprehensive Loss	-7,697	-10,676
Ineffective Portion	0	0
Foreign Exchange Contract [Member] | General and Administrative Expense [Member]	'	'
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]	'	'
Effective Portion of Gain/(Loss) Reclassified from Accumulated Other Comprehensive Loss	'	602
Ineffective Portion	'	$0

FAIR_VALUE_OF_FINANCIAL_INSTRU5

FAIR VALUE OF FINANCIAL INSTRUMENTS, DERIVATIVES AND FAIR VALUE DISCLOSURES (Details 3) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]	'	'	'
Gain/(loss) recognized on derivatives not designated as hedging instruments	$0	$1,376	$783
Forward Freight Agreements and Bunker Swaps [Member] | Other Income [Member]	'	'	'
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]	'	'	'
Gain/(loss) recognized on derivatives not designated as hedging instruments	0	1,376	840
Foreign Exchange Contract [Member] | General and Administrative Expense [Member]	'	'	'
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]	'	'	'
Gain/(loss) recognized on derivatives not designated as hedging instruments	$0	$0	($57)

FAIR_VALUE_OF_FINANCIAL_INSTRU6

FAIR VALUE OF FINANCIAL INSTRUMENTS, DERIVATIVES AND FAIR VALUE DISCLOSURES (Details 4) (Fair Value, Measurements, Recurring [Member], USD $)	Dec. 31, 2012
In Thousands, unless otherwise specified
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'
Available-for-sale marketable securities	$181
Fair Value, Inputs, Level 1 [Member]	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'
Available-for-sale marketable securities	$181	[1]
[1]	Included in prepaid expenses and other current assets in the accompanying balance sheet

FAIR_VALUE_OF_FINANCIAL_INSTRU7

FAIR VALUE OF FINANCIAL INSTRUMENTS, DERIVATIVES AND FAIR VALUE DISCLOSURES (Details 5) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2013		Dec. 31, 2012		Dec. 31, 2011
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'		'		'
Vessels held for use, Impairment Charges	$365,976		$278,345		'
Other fixed assets held for use, Impairment Charges	366,439		279,382		0
Intangible assets, Impairment Charges	6,625		'		'
Goodwill and other intangibles impairment charge	16,214		0		0
International Crude Tankers Impairment [Member]	'		'		'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'		'		'
Vessels held for use, Fair Value	359,252	[1]	106,400	[2]	'
Other fixed assets held for use, Fair Value	750	[3]	'		'
Intangible assets, Fair Value	0	[3]	'		'
Goodwill, Fair Value	0	[4]	'		'
Vessels held for use, Impairment Charges	-327,675	[1]	-101,589	[2]	'
Other fixed assets held for use, Impairment Charges	-462	[3]	'		'
Intangible assets, Impairment Charges	-6,625	[3]	'		'
Goodwill and other intangibles impairment charge	-9,589	[4]	'		'
International Product Carriers Impairment [Member]	'		'		'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'		'		'
Vessels held for use, Fair Value	67,947	[1]	139,000	[2]	'
Vessels held for use, Impairment Charges	-38,301	[1]	-176,756	[2]	'
Fair Value, Inputs, Level 2 [Member] | International Crude Tankers Impairment [Member]	'		'		'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'		'		'
Vessels held for use, Fair Value	359,252	[1]	106,400	[2]	'
Other fixed assets held for use, Fair Value	0	[3]	'		'
Intangible assets, Fair Value	0	[3]	'		'
Goodwill, Fair Value	0	[4]	'		'
Fair Value, Inputs, Level 2 [Member] | International Product Carriers Impairment [Member]	'		'		'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'		'		'
Vessels held for use, Fair Value	67,947	[1]	139,000	[2]	'
Fair Value, Inputs, Level 3 [Member] | International Crude Tankers Impairment [Member]	'		'		'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'		'		'
Vessels held for use, Fair Value	0	[1]	'		'
Other fixed assets held for use, Fair Value	750	[3]	'		'
Intangible assets, Fair Value	0	[3]	'		'
Goodwill, Fair Value	0	[4]	'		'
Fair Value, Inputs, Level 3 [Member] | International Product Carriers Impairment [Member]	'		'		'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'		'		'
Vessels held for use, Fair Value	$0	[1]	'		'
[1]	Aggregate pre-tax impairment charges of $295,504 were recorded in the fourth quarter of 2013, related to 11 vessels held for use in the International Crude Tanker and International Product Carriers segments. The fair value measurement used to determine the impairment for the vessels held for use was based upon a market approach, which utilized the expected sales prices of the vessels obtained from an average of three third party appraisals. Because sales of vessels occur somewhat infrequently, the expected sales prices are considered to be Level 2.
[2]	Aggregate pre-tax impairment charges of $278,345 were recorded in the fourth quarter of 2012, related to 15 vessels held for use in the International Crude Tanker and International Product Carriers segments. The fair value measurement used to determine the impairment for the vessels held for use was based upon a market approach, which utilized the expected sales prices of the vessels obtained from third party appraisals. Because sales of vessels occur somewhat infrequently, the expected sales prices are considered to be Level 2.
[3]	Aggregate pre-tax impairment charges of $7,087 were recorded in the fourth quarter of 2013, including $6,625 related to customer relationship intangible assets and $462 related to transportation equipment held for use in the International Crude Lightering business. The fair value measurement used to determine the impairment for the intangible assets and equipment held for use was based upon the income approach, which utilized cash flow projections consistent with the most recent projections of the Company, and a discount rate equivalent to a market participant's weighted average cost of capital. Because the Company uses its own cash flow projections, the cash flow projections are considered to be Level 3.
[4]	Aggregate pre-tax impairment charges of $9,589 were recorded in the fourth quarter of 2013, related to goodwill of the International Crude Tankerbs Lightering business. The fair value measurement used to determine the impairment for goodwill was based upon the income approach, which utilized cash flow projections consistent with the most recent projections of the Company, and a discount rate equivalent to a market participant's weighted average cost of capital. Because the Company uses its own cash flow projections, the cash flow projections are considered to be Level 3.

FAIR_VALUE_OF_FINANCIAL_INSTRU8

FAIR VALUE OF FINANCIAL INSTRUMENTS, DERIVATIVES AND FAIR VALUE DISCLOSURES (Details Textual) (USD $)

12 Months Ended

12 Months Ended

3 Months Ended

In Thousands, unless otherwise specified

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2011

Dec. 31, 2010

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2012

Sep. 30, 2012

Dec. 31, 2012

Transportation Equipment [Member]

Customer-Related Intangible Assets [Member]

Vessels Held For Use [Member]

Vessels Held For Use [Member]

Other Fixed Assets Held For Sale [Member]

Goodwill [Member]

Interest Rate Swap [Member]

Interest Rate Swap [Member]

Floating To Fixed Interest Rate Swap Agreements [Member]

Vessels

Vessels

Fair Value Of Financial Instruments Derivatives And Fair Value Disclousres [Line Items]

'

'

'

'

'

'

'

'

'

'

'

'

'

Notional Amount of Interest Rate Cash Flow Hedge Derivatives

'

'

'

'

'

'

'

'

'

'

$219,940

'

$30,000

Derivative, Lower Fixed Interest Rate Range

'

3.30%

'

'

'

'

'

'

'

'

'

'

'

Derivative, Higher Fixed Interest Rate Range

'

'

'

'

'

'

'

'

'

'

4.70%

'

'

Accumulated other comprehensive loss

-69,344

-113,781

-119,307

-76,888

'

'

'

'

'

'

'

331

'

Outstanding Interest Rate Swap

'

3,566

'

'

'

'

'

'

'

'

'

'

'

Dedesignation of interest rate swap agreements

0

1,866

0

'

'

'

'

'

'

'

'

'

'

Pre Tax Impairment Charges

'

'

'

'

$462

$6,625

$365,976

$278,345

$7,087

$9,589

'

'

'

Number Of Vessels

'

'

'

'

'

'

15

15

'

'

'

'

'

ACCOUNTS_PAYABLE_ACCRUED_EXPEN2

ACCOUNTS PAYABLE, ACCRUED EXPENSES AND OTHER CURRENT LIABILITIES (Details) (USD $)	Dec. 31, 2013	Dec. 31, 2012
In Thousands, unless otherwise specified
Accounts Payable Accrued Expenses And Other Current Liabilities [Line Items]	'	'
Accounts payable	$22,002	$16,545
Payroll and benefits	30,589	12,704
Due to owners on chartered in vessels	3,452	4,753
Accrued drydock and repair costs	4,335	3,823
Bunkers and lubricants	7,907	14,201
Charter revenues received in advance	18,682	10,778
Insurance	573	1,009
Accrued vessel expenses	7,529	11,268
Other	26,513	24,192
Accounts Payable and Other Accrued Liabilities, Current	$121,582	$99,273

TAXES_Details

TAXES (Details) (USD $)	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
In Thousands, unless otherwise specified
Deferred tax liabilities:	'	'	'
Excess of book over tax basis of depreciable or amortizable assets-net	$290,620	$301,378	'
Unremitted earnings of foreign subsidiaries	55,602	103,388	'
Costs capitalized and amortized for book, expensed for tax	12,010	13,058	'
Interest expense	35,368	4,329	'
Other-net	9,966	7,327	'
Total deferred tax liabilities	403,566	429,480	'
Deferred tax assets:	'	'	'
Net operating loss carryforward	12,580	10,659	'
Employee compensation and benefit plans	32,403	31,902	'
Other-net	7,570	26,121	'
Total deferred tax assets	52,553	68,682	'
Valuation allowance	13,477	8,264	6,629
Net deferred tax assets	39,076	60,418	'
Net deferred tax liabilities	364,490	369,062	'
Current deferred tax assets	-5,464	0	'
Current deferred tax liabilities	0	25,900	'
Noncurrent deferred tax liabilities	369,954	343,162	'
Net deferred tax liabilities	$364,490	$369,062	'

TAXES_Details_1

TAXES (Details 1) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Income Tax Contingency [Line Items]	'	'	'
Foreign	($662,480)	($484,306)	($129,051)
Domestic	9,505	2,711	-70,326
Loss before Income Taxes	($652,975)	($481,595)	($199,377)

TAXES_Details_2

TAXES (Details 2) (USD $)	3 Months Ended								12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2013	Sep. 30, 2013	Jun. 30, 2013	Mar. 31, 2013	Dec. 31, 2012	Sep. 30, 2012	Jun. 30, 2012	Mar. 31, 2012	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Income Tax Contingency [Line Items]	'	'	'	'	'	'	'	'	'	'	'
Current	'	'	'	'	'	'	'	'	$7,347	($28,270)	($31,622)
Deferred	'	'	'	'	'	'	'	'	7,398	29,751	29,636
Income Tax (Provision)/Benefit	$8,958	($1,947)	$1,899	$5,835	$1,203	($105)	$911	($528)	$14,745	$1,481	($1,986)

TAXES_Details_3

TAXES (Details 3)	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Income Tax Contingency [Line Items]	'	'	'
Actual income tax rate	2.30%	0.30%	-1.00%
Adjustments due to:	'	'	'
Income not subject to U.S. income taxes	36.20%	31.30%	25.20%
State taxes, net of federal benefit	-0.50%	1.80%	0.00%
Interest on unrecognized tax benefits	-4.90%	1.10%	9.10%
Nondeductible reorganization costs	1.40%	0.40%	0.00%
Foreign income and repatriations taxed in the U.S.	1.60%	-1.70%	-0.70%
Change in tax status of subsidiary	-0.90%	0.10%	0.00%
Other	-0.20%	1.70%	2.40%
U.S. statutory income tax rate	35.00%	35.00%	35.00%

TAXES_Details_4

TAXES (Details 4) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012
Income Tax Contingency [Line Items]	'	'
Balance of unrecognized tax benefits as of January 1,	$374,826	$361,829
Increases for positions taken in prior years	59	482
Decreases for positions taken in prior years	-14,240	0
Increases for positions related to the current year	31,838	13,514
Amounts of decreases related to settlements	0	-384
Reductions due to lapse of statutes of limitations	-653	-615
Balance of unrecognized tax benefits as of December 31,	$391,830	$374,826

TAXES_Details_Textual

TAXES (Details Textual) (USD $)

0 Months Ended

12 Months Ended

12 Months Ended

12 Months Ended

In Thousands, unless otherwise specified

Feb. 11, 2013

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2011

Dec. 19, 2013

Jan. 21, 2014

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2013

Subsequent Event [Member]

U.S. Federal [Member]

International operations [Member]

International operations [Member]

Barbados operations [Member]

Barbados operations [Member]

Foreign Subsidiaries [Member]

Foreign Subsidiaries [Member]

From January 1, 1987 Through December 31, 2004 [Member]

Maximum [Member]

Income Tax Contingency [Line Items]

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Percentage Of Ownership Interests

'

'

'

'

'

'

'

'

'

'

'

'

'

50.00%

Equity Method Investment, Ownership Percentage

'

50.00%

'

'

'

'

'

'

'

'

'

'

'

'

Proceeds from Dividends Received

'

'

'

'

'

'

'

'

'

'

'

$1,330,000

$1,194,150

'

Taxable Income From Foreign Earnings

'

107,000

77,000

'

'

'

'

'

'

'

'

'

'

'

Unrecognized Tax Benefits, Decrease Resulting from Current Period Tax Positions

'

359,459

'

'

'

'

'

'

'

'

'

'

'

'

Unrecognized Tax Benefits that Would Impact Effective Tax Rate

'

28,527

13,361

'

'

'

'

'

'

'

'

'

'

'

Unrecognized Tax Benefits, Income Tax Penalties Accrued

'

363,303

361,465

'

'

'

'

'

'

'

'

'

'

'

Deferred Tax Assets, Operating Loss Carryforwards, State and Local

'

130,021

96,358

'

'

'

'

'

'

'

'

'

'

'

Reserve Non current For Uncertain Tax Positions

'

26,585

'

'

'

'

'

'

'

'

'

'

'

'

Unrecognized Tax Benefits, Interest on Income Taxes Expense

'

14,923

64,024

'

'

'

'

'

'

'

'

'

'

'

Effective Income Tax Rate Reconciliation, Tax Credit, Amount, Total

'

1,489,000

'

'

'

'

'

'

'

'

'

'

'

'

Deferred Tax Assets, Operating Loss Carryforwards, Total

'

12,580

10,659

'

'

'

'

26,089

26,129

16,013

13,118

'

'

'

Reserve For Uncertain Tax Positions

'

234,623

326,121

'

'

'

'

'

'

'

'

'

'

'

Unrecognized Tax Benefits, Interest on Income Taxes Accrued

'

49,101

8,306

'

'

'

'

'

'

'

'

'

'

'

Operating Loss Carryforwards Expiration Period

'

'These state net operating loss carryforwards expire between 2014 and 2032

'

'

'

'

'

'

'

'

'

'

'

'

Increased Decreased In Valuation Allowance

'

5,213

1,635

-313

'

'

'

'

'

'

'

'

'

'

Income Taxes Paid

'

60,687

293

264

'

'

58,747

'

'

'

'

'

'

'

Bankruptcy Claims, Amount of Claims Filed

463,013

255,760

'

'

'

'

'

'

'

'

'

'

'

'

Bankruptcy Claims, Amount of Claims under Review by Management

'

'

'

'

264,278

255,760

'

'

'

'

'

'

'

'

Deferred Tax Assets, Valuation Allowance

'

$13,477

$8,264

$6,629

'

'

'

'

'

'

'

'

'

'

CAPITAL_STOCK_AND_STOCK_COMPEN2

CAPITAL STOCK AND STOCK COMPENSATION (Details)	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Stockholders Equity Note [Line Items]	'	'	'
Nonvested Shares Outstanding Beginning Balance	780,594	509,060	351,695
Granted	'	446,409	359,843
Vested	-155,932	-159,530	-127,391
Forfeited	-379,163	-15,345	-75,087
Nonvested Shares Outstanding Ending Balance	245,499	780,594	509,060

CAPITAL_STOCK_AND_STOCK_COMPEN3

CAPITAL STOCK AND STOCK COMPENSATION (Details 1)	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Stockholders Equity Note [Line Items]	'	'	'
Options Outstanding Beginning Balance	2,204,781	1,868,687	1,543,206
Granted	0	377,653	626,312
Forfeited	-1,523,825	-41,559	-300,831
Exercised	0	0	0
Options Outstanding Ending Balance	680,956	2,204,781	1,868,687
Options Exercisable	550,010	'	'

CAPITAL_STOCK_AND_STOCK_COMPEN4

CAPITAL STOCK AND STOCK COMPENSATION (Details Textual) (USD $)	12 Months Ended
In Thousands, except Share data, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Stockholders Equity Note [Line Items]	'	'	'
Share based awards granted	'	446,409	359,843
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range, Lower Range Limit	$12.50	'	'
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Remaining Contractual Term	'5 years 3 months 18 days	'	'
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range, Upper Range Limit	$64.92	'	'
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price, Beginning Balance	$39.48	$36.54	'
Employee Service Share-based Compensation, Allocation of Recognized Period Costs, Capitalized Amount	($192)	$1,764	$2,748
Employee Service Share-based Compensation, Nonvested Awards, Compensation Cost Not yet Recognized, Total	2,384	'	'
Employee Service Share-based Compensation, Nonvested Awards, Compensation Cost Not yet Recognized, Period for Recognition	'1 year 8 months 12 days	'	'
Compensation Expense Net Of Reduction Estimated Forfeiture	3,935	'	'
Compensation Income Net Of Included Estimated Forfeiture	1,667	'	'
Stock Incentive Plan 2004 [Member]	'	'	'
Stockholders Equity Note [Line Items]	'	'	'
Options granted in period	672,956	'	'
Share Based Compensation Arrangement By Share Based Payment Award Shares That May Be Issued Or Transferred In Period	3,308,707	'	'
Stock Incentive Plan 1998 [Member]	'	'	'
Stockholders Equity Note [Line Items]	'	'	'
Share Based Compensation Arrangement By Share Based Payment Award Options Expiration Term	'10 years	'	'
Non Employee Director Stock Option Plan 1999 [Member]	'	'	'
Stockholders Equity Note [Line Items]	'	'	'
Options granted in period	8,000	'	'
Share Based Compensation Arrangement By Share Based Payment Award Number Of Shares Granted To Director On Date Of Initial Options	7,500	'	'
Share Based Compensation Arrangement By Share Based Payment Award Number Of Shares Authorized Per Non Employee Director	1,000	'	'
Share Based Compensation Arrangement By Share Based Payment Award Options Expiration Term	'10 years	'	'
Non Employee Director Stock Option Plan 1999 [Member] | Initial Options [Member]	'	'	'
Stockholders Equity Note [Line Items]	'	'	'
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period	'3 years	'	'
Non Employee Director Stock Option Plan 1999 [Member] | Annual Options [Member]	'	'	'
Stockholders Equity Note [Line Items]	'	'	'
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period	'1 year	'	'
Maximum [Member] | Stock Incentive Plan 2004 [Member]	'	'	'
Stockholders Equity Note [Line Items]	'	'	'
Share-based Compensation Arrangements by Share-based Payment Award, Options, Grants in Period, Weighted Average Exercise Price	$64.92	'	'
Maximum [Member] | Non Employee Director Stock Option Plan 1999 [Member]	'	'	'
Stockholders Equity Note [Line Items]	'	'	'
Share-based Compensation Arrangements by Share-based Payment Award, Options, Grants in Period, Weighted Average Exercise Price	$44.47	'	'
Minimum [Member] | Stock Incentive Plan 2004 [Member]	'	'	'
Stockholders Equity Note [Line Items]	'	'	'
Share-based Compensation Arrangements by Share-based Payment Award, Options, Grants in Period, Weighted Average Exercise Price	$12.50	'	'
Minimum [Member] | Non Employee Director Stock Option Plan 1999 [Member]	'	'	'
Stockholders Equity Note [Line Items]	'	'	'
Share-based Compensation Arrangements by Share-based Payment Award, Options, Grants in Period, Weighted Average Exercise Price	$44.47	'	'
Restricted Stock Units (Rsus) [Member]	'	'	'
Stockholders Equity Note [Line Items]	'	'	'
Share based awards granted	0	45,000	45,192
Market Price Per Common Share	$0	$10	$26.55
Restricted Stock [Member]	'	'	'
Stockholders Equity Note [Line Items]	'	'	'
Share based awards granted	'	401,409	82,544
Share-based Payment Award, Description	'During the restriction period, the shares will have voting rights and cash dividends will be paid if declared	'During the restriction period, the shares will have voting rights and cash dividends will be paid if declared	'During the restriction period, the shares will have voting rights and cash dividends will be paid if declared
Weighted average grant-date fair value per share	'	$10.09	$34.90
Restricted Stock [Member] | Maximum [Member]	'	'	'
Stockholders Equity Note [Line Items]	'	'	'
Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Vested In Period Weighted Average Exercise Price	$43.40	$64.92	$64.92
Restricted Stock [Member] | Minimum [Member]	'	'	'
Stockholders Equity Note [Line Items]	'	'	'
Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Vested In Period Weighted Average Exercise Price	$10	$39.41	$35.46
Performance Based Restricted Units [Member]	'	'	'
Stockholders Equity Note [Line Items]	'	'	'
Share based awards granted	'	'	232,107
Weighted average grant-date fair value per share	'	'	$17.43
Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Cancelled In Period	'	'	47,289
Adjustments To Additional Paid In Capital Share Based Compensation Expense Gants Of Restricted Stock	61	6,115	6,959
Employee Stock Option [Member]	'	'	'
Stockholders Equity Note [Line Items]	'	'	'
Options granted, grant date fair value	'	$3.83	$5.72
Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Cancelled In Period	'	'	146,270
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Risk Free Interest Rate	'	1.20%	2.20%
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Dividend Rate	'	1.90%	4.10%
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Term	'	'6 years	'8 years 1 month 6 days
Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Volatility Factors	'	0.54	0.45
Senior Officers [Member]	'	'	'
Stockholders Equity Note [Line Items]	'	'	'
Payments for Restructuring	'	$1,307	'

ACCUMULATED_OTHER_COMPREHENSIV2

ACCUMULATED OTHER COMPREHENSIVE LOSS (Details) (USD $)	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
In Thousands, unless otherwise specified
Accumulated Other Comprehensive Income (Loss) [Line Items]	'	'	'	'
Unrealized gains on available-for-sale securities	$0	$49	$34	$265
Unrealized losses on derivative instruments	-59,263	-98,937	-104,554	-69,886
Items not yet recognized as a component of net periodic benefit cost (pension and other postretirement plans)	-10,081	-14,893	-14,787	-7,267
Accumulated other comprehensive loss	($69,344)	($113,781)	($119,307)	($76,888)

ACCUMULATED_OTHER_COMPREHENSIV3

ACCUMULATED OTHER COMPREHENSIVE LOSS (Details 1) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Accumulated Other Comprehensive Income (Loss) [Line Items]	'	'	'
Unrealized gains/(losses) on available - for-sale securities , Beginning Balance	$49	$34	$265
Unrealized gains/(losses) on available - for-sale securities, Current period other comprehensive loss, excluding amounts reclassified from accumulated other comprehensive income (loss)	-181	-836	-557
Unrealized gains/(losses) on available - for-sale securities, Amounts reclassified from accumulated other comprehensive loss	132	851	326
Unrealized gains/(losses) on available - for-sale securities, Total change in accumulated other comprehensive loss	-49	15	-231
Unrealized gains/(losses) on available - for-sale securities, Ending Balance	0	49	34
Unrealized gains/(losses) on cash flow hedges, Beginning Balance	-98,937	-104,554	-69,886
Unrealized gains/(losses) on cash flow hedges, Current period other comprehensive loss, excluding amounts reclassified from accumulated other comprehensive income (loss)	19,114	-20,709	-65,317
Unrealized gains/(losses) on cash flow hedges, Amounts reclassified from accumulated other comprehensive loss	20,560	26,326	30,649
Unrealized gains/(losses) on cash flow hedges, Total change in accumulated other comprehensive loss	39,674	5,617	-34,668
Unrealized gains/(losses) on cash flow hedges, Ending Balance	-59,263	-98,937	-104,554
Items not yet recognized as a component of net periodic benefit cost (pension and other postretirement plans), Beginning Balance	-14,893	-14,787	-7,267
Items not yet recognized as a component of net periodic benefit cost (pension and other postretirement plans), Current period other comprehensive loss, excluding amounts reclassified from accumulated other comprehensive income (loss)	4,336	-409	-7,669
Items not yet recognized as a component of net periodic benefit cost (pension and other postretirement plans), Amounts reclassified from accumulated other comprehensive loss	476	303	149
Items not yet recognized as a component of net periodic benefit cost (pension and other postretirement plans), Total change in accumulated other comprehensive loss	4,812	-106	-7,520
Items not yet recognized as a component of net periodic benefit cost (pension and other postretirement plans), Ending Balance	-10,081	-14,893	-14,787
Beginning Balance	-113,781	-119,307	-76,888
Current period other comprehensive income (loss), excluding amounts reclassified from accumulated other comprehensive income (loss)	23,269	-21,954	-73,543
Amounts reclassified from accumulated other comprehensive loss	21,168	27,480	31,124
Total change in accumulated other comprehensive loss	44,437	5,526	-42,419
Ending Balance	($69,344)	($113,781)	($119,307)

ACCUMULATED_OTHER_COMPREHENSIV4

ACCUMULATED OTHER COMPREHENSIVE LOSS (Details 2) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2013		Dec. 31, 2012		Dec. 31, 2011
Items not yet recognized as a component of net periodic benefit cost (pension and other postretirement plans):	'		'		'
Other Comprehensive Income (Loss), before Tax	($21,305)		($29,962)		($33,570)
Other Comprehensive Income (Loss), Tax	137	[1]	2,482	[1]	2,446	[1]
Other Comprehensive Income Loss Reclassification Adjustment From AOCI Net Of Tax	-21,168		-27,480		-31,124
Other Income/(expense) [Member]	'		'		'
Unrealized losses on available-for-sale securities:	'		'		'
Impairment recorded relating to securities held by the Companys foreign subsidiaries	-132		-851		-326
General and Administrative Expense [Member]	'		'		'
Items not yet recognized as a component of net periodic benefit cost (pension and other postretirement plans):	'		'		'
Net periodic benefit costs associated with pension and postretirement benefit plans for shore-based employees or seagoing employees	-678		-526		-100
Vessel expenses [Member]	'		'		'
Items not yet recognized as a component of net periodic benefit cost (pension and other postretirement plans):	'		'		'
Net periodic benefit costs associated with pension and postretirement benefit plans for shore-based employees or seagoing employees	65		-24		-90
Foreign Currency Contract [Member] | General and Administrative Expense [Member]	'		'		'
Unrealized losses on cash flow hedges:	'		'		'
Foreign currency contracts entered into by the Company's foreign subsidiaries	0		0		602
Interest Rate Swap [Member] | Equity in Income of Affiliated Companies [Member]	'		'		'
Unrealized losses on cash flow hedges:	'		'		'
Interest rate swaps entered into by the Company's equity method joint venture investees or subsidiaries	-20,560		-20,864		-22,980
Interest Rate Swap [Member] | Interest Expense [Member]	'		'		'
Unrealized losses on cash flow hedges:	'		'		'
Interest rate swaps entered into by the Company's equity method joint venture investees or subsidiaries	$0		($7,697)		($10,676)
[1]	The tax benefit relates to the net periodic benefit costs of the Company's pension and postretirement benefit plans as well as interest rate swaps entered into by the Company's domestic subsidiaries

ACCUMULATED_OTHER_COMPREHENSIV5

ACCUMULATED OTHER COMPREHENSIVE LOSS (Details 3) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Accumulated Other Comprehensive Income (Loss) [Line Items]	'	'	'
unrealized gains/(losses) on cash flow hedges, Current period change excluding amounts reclassified from accumulated other comprehensive income	$19,114	($20,709)	($65,317)
unrealized gains/(losses) on cash flow hedges, Amounts reclassified from accumulated other comprehensive income	-20,560	-26,326	-30,649
unrealized gains/(losses) on cash flow hedges, Total change in accumulated other comprehensive income	39,674	5,617	-34,668
Items not yet recognized as a component of net periodic benefit cost, Current period change excluding amounts reclassified from accumulated other comprehensive income	4,336	-409	-7,669
Items not yet recognized as a component of net periodic benefit cost, Amounts reclassified from accumulated other comprehensive income	-476	-303	-149
Items not yet recognized as a component of net periodic benefit cost, Total change in accumulated other comprehensive income	4,812	-106	-7,520
Tax (expense)/ benefit [Member]	'	'	'
Accumulated Other Comprehensive Income (Loss) [Line Items]	'	'	'
unrealized gains/(losses) on cash flow hedges, Current period change excluding amounts reclassified from accumulated other comprehensive income	0	131	504
unrealized gains/(losses) on cash flow hedges, Amounts reclassified from accumulated other comprehensive income	0	-2,235	-2,405
unrealized gains/(losses) on cash flow hedges, Total change in accumulated other comprehensive income	0	-2,104	-1,901
Items not yet recognized as a component of net periodic benefit cost, Current period change excluding amounts reclassified from accumulated other comprehensive income	-2,899	118	3,392
Items not yet recognized as a component of net periodic benefit cost, Amounts reclassified from accumulated other comprehensive income	-137	-247	-41
Items not yet recognized as a component of net periodic benefit cost, Total change in accumulated other comprehensive income	($3,036)	($129)	$3,351

ACCUMULATED_OTHER_COMPREHENSIV6

ACCUMULATED OTHER COMPREHENSIVE LOSS (Details Textual) (USD $)	Dec. 31, 2013
In Thousands, unless otherwise specified
Accumulated Other Comprehensive Income (Loss) [Line Items]	'
Pension and Other Postretirement Benefit Plans, Accumulated Other Comprehensive Income (Loss), Net Transition Assets (Obligations), before Tax	$7
Defined Benefit Plan Accumulated Other Comprehensive Income Net Transition Assets Obligations Net Of Tax	4
Pension and Other Postretirement Benefit Plans, Accumulated Other Comprehensive Income (Loss), Net Prior Service Cost (Credit), before Tax	1,229
Defined Benefit Plan Accumulated Other Comprehensive Income Net Prior Service Cost Credit Net Of Tax	496
Pension and Other Postretirement Benefit Plans, Accumulated Other Comprehensive Income (Loss), Net Gains (Losses), before Tax	14,535
Defined Benefit Plan Accumulated Other Comprehensive Income Net Gains Losses Net Of Tax	10,573
Accumulated Other Comprehensive Income Loss Effective Portion Under Net Investment Hedge Reclassified To Earnings During Period	18,992
December 31 2014 [Member]	'
Accumulated Other Comprehensive Income (Loss) [Line Items]	'
Pension and Other Postretirement Benefit Plans, Accumulated Other Comprehensive Income (Loss), Net Transition Assets (Obligations), before Tax	7
Defined Benefit Plan Accumulated Other Comprehensive Income Net Transition Assets Obligations Net Of Tax	5
Pension and Other Postretirement Benefit Plans, Accumulated Other Comprehensive Income (Loss), Net Prior Service Cost (Credit), before Tax	246
Defined Benefit Plan Accumulated Other Comprehensive Income Net Prior Service Cost Credit Net Of Tax	148
Pension and Other Postretirement Benefit Plans, Accumulated Other Comprehensive Income (Loss), Net Gains (Losses), before Tax	389
Defined Benefit Plan Accumulated Other Comprehensive Income Net Gains Losses Net Of Tax	$283

LEASES_Details

LEASES (Details) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2013
Bareboat Charters In [Member]	'
Leases [Line Items]	'
2014	$93,423
2015	97,817
2016	99,038
2017	98,219
2018	93,200
Thereafter	111,318
Net minimum lease payments	593,015
Operating Days	'26340 days
Bareboat Charters In [Member] | One Year From Balance Sheet [Member]	'
Leases [Line Items]	'
Operating Days	'4745 days
Bareboat Charters In [Member] | More Than One and Within Two Years From Balance Sheet [Member]	'
Leases [Line Items]	'
Operating Days	'4745 days
Bareboat Charters In [Member] | More Than Two and Within Three Years From Balance Sheet [Member]	'
Leases [Line Items]	'
Operating Days	'4758 days
Bareboat Charters In [Member] | More Than Three and Within Four Years From Balance Sheet [Member]	'
Leases [Line Items]	'
Operating Days	'4713 days
Bareboat Charters In [Member] | More Than Four and Within Five Years From Balance Sheet [Member]	'
Leases [Line Items]	'
Operating Days	'3929 days
Bareboat Charters In [Member] | More Than Five Years From Balance Sheet and Thereafter [Member]	'
Leases [Line Items]	'
Operating Days	'3450 days
Time Charters In [Member]	'
Leases [Line Items]	'
2014	38,942
2015	22,606
2016	1,004
Net minimum lease payments	$62,552
Operating Days	'5339 days
Time Charters In [Member] | One Year From Balance Sheet [Member]	'
Leases [Line Items]	'
Operating Days	'3419 days
Time Charters In [Member] | More Than One and Within Two Years From Balance Sheet [Member]	'
Leases [Line Items]	'
Operating Days	'1847 days
Time Charters In [Member] | More Than Two and Within Three Years From Balance Sheet [Member]	'
Leases [Line Items]	'
Operating Days	'73 days

LEASES_Details_1

LEASES (Details 1) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2013
One Year From Balance Sheet [Member]	'
Leases [Line Items]	'
Revenue Days	'9246 days
More Than One and Within Two Years From Balance Sheet [Member]	'
Leases [Line Items]	'
Revenue Days	'4598 days
More Than Two and Within Three Years From Balance Sheet [Member]	'
Leases [Line Items]	'
Revenue Days	'2846 days
More Than Three and Within Four Years From Balance Sheet [Member]	'
Leases [Line Items]	'
Revenue Days	'1640 days
More Than Four and Within Five Years From Balance Sheet [Member]	'
Leases [Line Items]	'
Revenue Days	'881 days
More Than Five Years From Balance Sheet and Thereafter [Member]	'
Leases [Line Items]	'
Revenue Days	'343 days
Charter Out [Member]	'
Leases [Line Items]	'
2014	364,905
2015	232,190
2016	148,524
2017	91,201
2018	55,337
Thereafter	29,387
Net minimum lease payments	921,544
Revenue Days	'19554 days

LEASES_Details_2

LEASES (Details 2) (Office Space [Member], USD $)	Dec. 31, 2013
In Thousands, unless otherwise specified
Office Space [Member]	'
Leases [Line Items]	'
2014	$3,001
2015	1,990
2016	1,106
2017	523
2018	314
Net minimum lease payments	$6,934

LEASES_Details_Textual

LEASES (Details Textual) (USD $)	9 Months Ended	12 Months Ended
	Sep. 30, 2012	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Leases [Line Items]	'	'	'	'
Estimated For Lease Termination Costs	'	$248,839,000	$30,187,000	'
Minimum Percentage Of Barrel Volume	50.00%	'	'	'
Deferred Revenue	27,100,000	'	'	'
Sunoco Termination Fee	13,300,000	0	13,300,000	0
Voyage Revenue	40,400,000	'	'	'
Replacement Agreement Runs Period	'	'April 2020	'	'
Liabilities Subject to Compromise, Other Liabilities	'	3,566,000	3,566,000	'
Charters In [Member]	'	'	'	'
Leases [Line Items]	'	'	'	'
Commitments to charter in vessels, Number of Units	'	22	'	'
Liabilities Subject to Compromise, Other Liabilities	'	282,599,000	30,539,000	'
Bareboat Charters In [Member]	'	'	'	'
Leases [Line Items]	'	'	'	'
Commitments to charter in vessels, Number of Units	'	13	'	'
Charter Out [Member]	'	'	'	'
Leases [Line Items]	'	'	'	'
Operating Leases, Future Minimum Payments Receivable, Current	'	28,665,000	'	'
Operating Leases, Future Minimum Payments Receivable, in Two Years	'	26,559,000	'	'
Operating Leases, Future Minimum Payments Receivable, in Three Years	'	22,023,000	'	'
Operating Leases, Future Minimum Payments Receivable, in Four Years	'	22,347,000	'	'
Operating Leases, Future Minimum Payments Receivable, in Five Years	'	22,698,000	'	'
Operating Leases, Future Minimum Payments Receivable, Thereafter	'	29,387,000	'	'
Office Space [Member]	'	'	'	'
Leases [Line Items]	'	'	'	'
Provision for Lease Losses	'	3,646,000	'	'
Leasehold Improvements, Gross	'	1,638,000	'	'
Operating Leases, Rent Expense, Net	'	$3,959	$4,550	$4,614

PENSION_AND_OTHER_POSTRETIREME2

PENSION AND OTHER POSTRETIREMENT BENEFIT PLANS (Details) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2013		Dec. 31, 2012		Dec. 31, 2011
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]	'		'		'
Multiemployer Plan, Period Contributions	$1,382		$1,306		$1,230
AMO Pension Plan [Member]	'		'		'
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]	'		'		'
Employer Identification And Pension Plan Number	'13-1936709		'		'
Multiemployer Plans, Certified Zone Status	'Yellow	[1]	'Red	[1]	'
Multiemployer Plans, Funding Improvement Plan and Rehabilitation Plan	'Implemented		'		'
Multiemployer Plan, Period Contributions	975		890		805
MEBA Pension Plan [Member]	'		'		'
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]	'		'		'
Employer Identification And Pension Plan Number	'51-6029896		'		'
Multiemployer Plans, Certified Zone Status	'Green	[1]	'Green	[1]	'
Multiemployer Plan, Period Contributions	0		0		0
Seafarers Pension Plan [Member]	'		'		'
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]	'		'		'
Employer Identification And Pension Plan Number	'13-6100329		'		'
Multiemployer Plans, Certified Zone Status	'Green	[1]	'Green	[1]	'
Multiemployer Plan, Period Contributions	$407		$416		$425
[1]	A "Red" Zone Status plan is a plan that is funded less than 65% and currently has a funding deficiency or a funding deficiency that is projected in the near term. A "Yellow" Zone Status plan is a plan that has a funding ratio between 65% and 80%. A "Green" Zone Status plan is a plan that is 80% funded or more.

PENSION_AND_OTHER_POSTRETIREME3

PENSION AND OTHER POSTRETIREMENT BENEFIT PLANS (Details 1) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Pension Benefits [Member]	'	'	'
Amortization of prior-service costs	'	'	'
Benefit obligation at beginning of year	$51,022	$46,854	'
Cost of benefits earned (service cost)	0	0	0
Interest cost on benefit obligation	1,775	2,032	2,171
Amendments	0	0	'
Actuarial (gains)/losses	-4,500	4,374	'
Benefits paid	-2,261	-2,238	'
Benefit obligation at year end	46,036	51,022	46,854
Change in plan assets:	'	'	'
Fair value of plan assets at beginning of year	31,392	28,897	'
Actual return on plan assets	5,574	3,161	'
Employer contributions	1,318	1,545	'
Benefits paid	-2,261	-2,211	'
Fair value of plan assets at year end	36,023	31,392	28,897
Unfunded status at December 31	-10,013	-19,630	'
Other Benefits [Member]	'	'	'
Amortization of prior-service costs	'	'	'
Benefit obligation at beginning of year	4,466	6,395	'
Cost of benefits earned (service cost)	118	195	226
Interest cost on benefit obligation	178	237	292
Amendments	0	-3,012	'
Actuarial (gains)/losses	-621	804	'
Benefits paid	-222	-153	'
Benefit obligation at year end	3,919	4,466	6,395
Change in plan assets:	'	'	'
Fair value of plan assets at beginning of year	0	0	'
Actual return on plan assets	0	0	'
Employer contributions	0	0	'
Benefits paid	0	0	'
Fair value of plan assets at year end	0	0	0
Unfunded status at December 31	($3,919)	($4,466)	'

PENSION_AND_OTHER_POSTRETIREME4

PENSION AND OTHER POSTRETIREMENT BENEFIT PLANS (Details 2) (Pension Benefits [Member], USD $)	Dec. 31, 2013	Dec. 31, 2012
In Thousands, unless otherwise specified
Pension Benefits [Member]	'	'
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]	'	'
Projected benefit obligation	$46,036	$51,022
Accumulated benefit obligation	46,036	51,022
Fair value of plan assets	$36,023	$31,392

PENSION_AND_OTHER_POSTRETIREME5

PENSION AND OTHER POSTRETIREMENT BENEFIT PLANS (Details 3) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Pension Benefits [Member]	'	'	'
Components of expense:	'	'	'
Cost of benefits earned	$0	$0	$0
Interest cost on benefit obligation	1,775	2,032	2,171
Expected return on plan assets	-2,092	-1,873	-2,030
Amortization of prior-service costs	0	0	0
Amortization of transition obligation	0	0	0
Recognized net actuarial loss	504	316	30
Net periodic benefit cost	187	475	171
Other Benefits [Member]	'	'	'
Components of expense:	'	'	'
Cost of benefits earned	118	195	226
Interest cost on benefit obligation	178	237	292
Expected return on plan assets	0	0	0
Amortization of prior-service costs	-333	-233	-157
Amortization of transition obligation	7	10	20
Recognized net actuarial loss	171	160	122
Net periodic benefit cost	$141	$369	$503

PENSION_AND_OTHER_POSTRETIREME6

PENSION AND OTHER POSTRETIREMENT BENEFIT PLANS (Details 4)	Dec. 31, 2013	Dec. 31, 2012
Pension Benefits [Member]	'	'
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]	'	'
Discount rate	4.50%	3.75%
Rate of future compensation increases	0.00%	0.00%
Other Benefits [Member]	'	'
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]	'	'
Discount rate	5.00%	4.00%
Rate of future compensation increases	0.00%	0.00%

PENSION_AND_OTHER_POSTRETIREME7

PENSION AND OTHER POSTRETIREMENT BENEFIT PLANS (Details 5)	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Pension Benefits [Member]	'	'	'
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]	'	'	'
Discount rate	3.75%	4.50%	5.25%
Expected (long-term) return on plan assets	6.75%	6.50%	6.75%
Rate of future compensation increases	0.00%	0.00%	0.00%
Other Benefits [Member]	'	'	'
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]	'	'	'
Discount rate	4.00%	4.50%	5.25%
Expected (long-term) return on plan assets	0.00%	0.00%	0.00%
Rate of future compensation increases	0.00%	0.00%	0.00%

PENSION_AND_OTHER_POSTRETIREME8

PENSION AND OTHER POSTRETIREMENT BENEFIT PLANS (Details 6) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2013
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]	'
Effect of 1% increase on total of service and interest cost components in 2013	$41
Effect of 1% increase on postretirement benefit obligation as of December 31, 2013	376
Effect of 1% decrease on total of service and interest cost components in 2013	-33
Effect of 1% decrease on postretirement benefit obligation as of December 31, 2013	($316)

PENSION_AND_OTHER_POSTRETIREME9

PENSION AND OTHER POSTRETIREMENT BENEFIT PLANS (Details 7) (USD $)	Dec. 31, 2013
In Thousands, unless otherwise specified
Pension Benefits [Member]	'
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]	'
2014	$2,287
2015	2,384
2016	2,536
2017	2,560
2018	2,668
Years 2019-2023	14,763
Defined Benefit Plan Expected Future Benefit Payments	27,198
Other Benefits [Member]	'
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]	'
2014	169
2015	174
2016	180
2017	191
2018	205
Years 2019-2023	1,189
Defined Benefit Plan Expected Future Benefit Payments	$2,108

Recovered_Sheet1

PENSION AND OTHER POSTRETIREMENT BENEFIT PLANS (Details 8) (Pension Benefits [Member], USD $)	Dec. 31, 2013		Dec. 31, 2012	Dec. 31, 2011
In Thousands, unless otherwise specified
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]	'		'	'
Fair value of pension assets	$36,023		$31,392	$28,897
Fair Value, Inputs, Level 1 [Member]	'		'	'
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]	'		'	'
Fair value of pension assets	36,023		'	'
Corporate Debt Securities [Member]	'		'	'
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]	'		'	'
Fair value of pension assets	1,407		'	'
Corporate Debt Securities [Member] | Fair Value, Inputs, Level 1 [Member]	'		'	'
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]	'		'	'
Fair value of pension assets	1,407		'	'
Us Companies [Member]	'		'	'
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]	'		'	'
Fair value of pension assets	16,949		'	'
Us Companies [Member] | Fair Value, Inputs, Level 1 [Member]	'		'	'
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]	'		'	'
Fair value of pension assets	16,949		'	'
International Companies [Member]	'		'	'
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]	'		'	'
Fair value of pension assets	7,336		'	'
International Companies [Member] | Fair Value, Inputs, Level 1 [Member]	'		'	'
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]	'		'	'
Fair value of pension assets	7,336		'	'
Cash and Cash Equivalents [Member]	'		'	'
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]	'		'	'
Fair value of pension assets	1,097		'	'
Cash and Cash Equivalents [Member] | Fair Value, Inputs, Level 1 [Member]	'		'	'
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]	'		'	'
Fair value of pension assets	1,097		'	'
Mutual Funds [Member]	'		'	'
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]	'		'	'
Fair value of pension assets	3,449	[1]	'	'
Mutual Funds [Member] | Fair Value, Inputs, Level 1 [Member]	'		'	'
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]	'		'	'
Fair value of pension assets	3,449	[1]	'	'
Us Treasury Securities [Member]	'		'	'
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]	'		'	'
Fair value of pension assets	4,765		'	'
Us Treasury Securities [Member] | Fair Value, Inputs, Level 1 [Member]	'		'	'
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]	'		'	'
Fair value of pension assets	4,765		'	'
Collateralized Mortgage Backed Securities [Member]	'		'	'
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]	'		'	'
Fair value of pension assets	1,020		'	'
Collateralized Mortgage Backed Securities [Member] | Fair Value, Inputs, Level 1 [Member]	'		'	'
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]	'		'	'
Fair value of pension assets	$1,020		'	'
[1]	The mutual fund investments are invested in intermediate term bonds and fixed income instruments including (but not limited to) mortgage and other asset backed securities and corporate debt securities of U.S. and non-U.S. issuers.

Recovered_Sheet2

PENSION AND OTHER POSTRETIREMENT BENEFIT PLANS (Details Textual)

12 Months Ended

12 Months Ended

12 Months Ended

In Thousands, unless otherwise specified

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2012

Sep. 30, 2012

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2011

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2012

Equity Securities [Member]

Fixed Income Securities [Member]

Seafarers Pension Plan [Member]

MEBA Pension Plan [Member]

MEBA Pension Plan [Member]

AMO Pension Plan [Member]

AMO Pension Plan [Member]

Minimum [Member]

Maximum [Member]

Maritrans Inc [Member]

Other Benefits [Member]

Other Benefits [Member]

Other Benefits [Member]

Other Benefits [Member]

Other Benefits [Member]

Pension Benefits [Member]

Pension Benefits [Member]

Pension Benefits [Member]

Pension Benefits [Member]

Pension Benefits [Member]

Pension Benefits [Member]

Pension Plan, Defined Benefit [Member]

Pension Plan, Defined Benefit [Member]

Contracts

USD ($)

USD ($)

USD ($)

USD ($)

USD ($)

Maritrans Inc [Member]

Maritrans Inc [Member]

Maritrans Inc [Member]

USD ($)

USD ($)

Minimum [Member]

Maximum [Member]

Maximum [Member]

Maritrans Inc [Member]

USD ($)

USD ($)

USD ($)

USD ($)

USD ($)

USD ($)

GBP (£)

Numbers

Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Defined Benefit Plans, Estimated Future Employer Contributions in Next Fiscal Year

'

'

'

'

'

'

'

'

'

$1,320

'

'

'

'

'

'

'

'

'

'

'

'

'

Defined Benefit Plan, Contributions by Employer

'

'

'

'

'

'

'

'

'

'

0

0

1,318

1,545

1,348

1,318

1,545

'

8,073

4,896

'

'

'

Defined Benefit Plan Employer Contribution Percentage

'

'

5.00%

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Funded Percentage Under Pension Protection Act

'

'

'

'

'

'

'

65.00%

80.00%

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Multiemployer Plans, Withdrawal Obligation

'

'

'

'

7,462

'

30,842

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Defined Benefit Plan, Health Care Cost Trend Rate Assumed for Next Fiscal Year

'

'

'

'

'

'

'

'

'

'

10.00%

'

'

'

'

'

'

'

'

'

'

'

'

Defined Benefit Plan, Ultimate Health Care Cost Trend Rate

'

'

'

'

'

'

'

'

'

'

5.00%

'

'

'

'

'

'

'

'

'

'

'

'

Defined Benefit Plan, Target Plan Asset Allocations

65.00%

35.00%

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Pension and Other Postretirement and Postemployment Benefit Plans, Liabilities, Noncurrent, Total

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

$13,275

$13,275

Defined Benefit Plan Service Period For Eligibility

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'1984

'1998

'1998

'

'

'

Acquisition Date

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'2006-11

'

'

Defined Benefit Plan Termination Date

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'2005-12

'

Number Of Defined Benefit Pension Plan

'

'

'

3

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Number Of Former Employees Included In Plan

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

5

'

Multiemployer Plans Surcharge Imposed

'

'

'

'

'

5.00%

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

OTHER_INCOMEEXPENSE_Details

OTHER INCOME/(EXPENSE) (Details) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Investment income:	'	'	'
Interest	$856	$431	$918
Dividends	0	36	220
Gain/(loss) on sale or write-down of securities and investments	-197	-3,166	313
Investment Income Interest and Dividend and Gain Loss On Investments	659	-2,699	1,451
Loss on repurchase of debt	0	0	-375
Gain on derivative transactions	0	1,376	840
MiscellaneousBnet	190	9	238
Other Income	$849	($1,314)	$2,154

OTHER_INCOMEEXPENSE_Details_Te

OTHER INCOME/(EXPENSE) (Details Textual) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Other Income [Line Items]	'	'	'
Other than Temporary Impairment Losses, Investments	$132	$816	$326
Cost-method Investments, Other than Temporary Impairment	'	$2,600	'

SEVERANCE_AND_RELOCATION_COSTS2

SEVERANCE AND RELOCATION COSTS AND AGREEMENTS WITH EXECUTIVE OFFICERS (Details) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012
Severance and Relocation Reserves TMC [Member]	'	'
Activity for the year ended December 31	'	'
Original estimate	$0	$2,100
Change in estimate	33	1,063
Utilized	-36	-2,705
Release of excess reserves	-455	'
Balance at December 31	0	458
Severance Reserve April 2013 RIF [Member]	'	'
Activity for the year ended December 31	'	'
Original estimate	3,824	0
Change in estimate	25	0
Utilized	-2,059	0
Release of excess reserves	-422	'
Balance at December 31	$1,368	$0

SEVERANCE_AND_RELOCATION_COSTS3

SEVERANCE AND RELOCATION COSTS AND AGREEMENTS WITH EXECUTIVE OFFICERS (Details Textual) (USD $)	0 Months Ended	12 Months Ended			1 Months Ended		3 Months Ended		12 Months Ended
In Thousands, except Share data, unless otherwise specified	Feb. 11, 2013	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011	Feb. 28, 2013	Oct. 31, 2011	Mar. 31, 2013	Jun. 15, 2012	Dec. 31, 2013
					Chief Executive Officer [Member]	Chief Executive Officer [Member]	Chief Executive Officer [Member]	Chief Executive Officer [Member]	April RIF [Member]
Restructuring Cost and Reserve [Line Items]	'	'	'	'	'	'	'	'	'
Severance Costs	'	'	'	'	'	'	'	'	$3,427
Allocated Share-based Compensation Expense, Total	'	'	'	'	3,209	'	'	'	'
Vessel Technical Management Relocation Description	'	'In the first quarter of 2012, the Company announced the relocation of the technical management (TMC) of its conventional International Flag crude oil tanker fleet from its Newcastle, U.K. office to its Athens, Greece office. In connection therewith, approximately 50 employees were terminated in Newcastle.	'	'	'	'	'	'	'
Number of Employees terminated or relocated	'	50	'	'	'	'	'	'	'
Excess Reserves Net Of Additional Provisions	'	422	'	'	'	'	'	'	'
Restructuring Charges	'	3,163	3,163	'	'	'	'	'	'
Bankruptcy Claims, Amount of Claims Filed	463,013	255,760	'	'	'	'	6,399	'	'
Approved Bonus	'	'	'	'	'	'	'	$1,500	'
Granted	'	0	377,653	626,312	'	450,000	'	'	'
Options granted, exercise price	'	'	'	'	'	$22.50	'	'	'
Share based awards granted	'	'	446,409	359,843	'	177,778	'	'	'

2013_AND_2012_QUARTERLY_RESULT2

2013 AND 2012 QUARTERLY RESULTS OF OPERATIONS (UNAUDITED) (Details) (USD $)	3 Months Ended																12 Months Ended
In Thousands, except Per Share data, unless otherwise specified	Dec. 31, 2013		Sep. 30, 2013		Jun. 30, 2013		Mar. 31, 2013		Dec. 31, 2012		Sep. 30, 2012		Jun. 30, 2012		Mar. 31, 2012		Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Quarterly Financial Information [Line Items]	'		'		'		'		'		'		'		'		'	'	'
Shipping revenues	$273,102		$267,342		$228,114		$247,438		$255,897		$297,505		$291,354		$292,378		$1,015,996	$1,137,134	$1,049,531
Gain/(loss) on disposal of vessels, including impairments	-382,614	[1]	-63	[1]	1,228	[1]	-22	[1]	-271,418	[2]	-332	[2]	285	[2]	106	[2]	-365,257	-271,359	2,060
Income/(loss) from vessel operations	-376,619		7,768		432		1,221		-311,224		-13,928		-30,439		-23,642		-367,198	-379,233	-142,188
Interest expense	28		3		31		288		25,013	[3]	23,314	[3]	22,084	[3]	23,010	[3]	350	93,421	79,898
Reorganization items, net	90,341	[4]	14,705	[4]	37,503	[4]	184,621	[4]	41,113		0		0		0		327,170	41,113	0
Income tax benefit/(provision)	8,958		-1,947		1,899		5,835		1,203		-105		911		-528		14,745	1,481	-1,986
Net income/(loss)	($447,281)		$960		($24,147)		($167,762)		($364,773)		($25,786)		($52,695)		($36,860)		($638,230)	($480,114)	($201,363)
Basic net income/(loss) per share (in dollars per share)	($14.67)		$0.03		($0.79)		($5.51)		($12.01)		($0.85)		($1.74)		($1.22)		($20.94)	($15.82)	($6.67)
Diluted net income/(loss) per share (in dollars per share)	($14.67)		$0.03		($0.79)		($5.51)		($12.01)		($0.85)		($1.74)		($1.22)		($20.94)	($15.82)	($6.67)
[1]	As discussed in Note 7, "Vessels, Deferred Drydock and Other Property," vessel impairment charges aggregating $365,976 were recorded in the fourth quarter. Further, as discussed in Note 10, "Goodwill and Intangible Assets," impairment charges aggregating $16,214 for goodwill and intangible assets related to the International Crude Tankers Lightering business were recorded in the fourth quarter.
[2]	As discussed in Note 7, "Vessels, Deferred Drydock and Other Property," impairment charges aggregating $279,382 were recorded in the fourth quarter.
[3]	As discussed in Note 2, "Bankruptcy Filing and Going Concern," and Note 11, "Debt," the Debtors filed a petition for relief under Chapter 11 and its debt agreements are classified as Liabilities Subject to Compromise. From November 14, 2012 to December 31, 2012, interest expense of $9,395 was accordingly not recorded.
[4]	As discussed in Note 3, "Liabilities Subject to Compromise and Reorganization Items," the Company adjusts its accrued liabilities relating to rejected executory contracts when new information becomes available. In the fourth quarter, the Company increased its accruals by $69,154 based upon such new information.

2013_AND_2012_QUARTERLY_RESULT3

2013 AND 2012 QUARTERLY RESULTS OF OPERATIONS (UNAUDITED) (Details Textual) (USD $)

3 Months Ended

12 Months Ended

In Thousands, unless otherwise specified

Dec. 31, 2013

Sep. 30, 2013

Jun. 30, 2013

Mar. 31, 2013

Dec. 31, 2012

Sep. 30, 2012

Jun. 30, 2012

Mar. 31, 2012

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2011

Impairment of Long-Lived Assets Held-for-use

'

'

'

'

'

'

'

'

$366,439

$279,382

$0

Goodwill and Intangible Asset Impairment, Total

'

'

'

'

'

'

'

'

16,214

0

0

Liabilities Subject to Compromise, Debt and Accrued Interest

69,154

'

'

'

'

'

'

'

69,154

'

'

Interest Expense, Total

28

3

31

288

25,013

[1]

23,314

[1]

22,084

[1]

23,010

[1]

350

93,421

79,898

Interest Expense [Member]

'

'

'

'

'

'

'

'

'

'

'

Interest Expense, Total

'

'

'

'

'

'

'

'

17,168

9,395

'

Vessals [Member]

'

'

'

'

'

'

'

'

'

'

'

Impairment of Long-Lived Assets Held-for-use

'

'

'

'

'

'

'

'

$365,976

'

'

[1]

As discussed in Note 2, "Bankruptcy Filing and Going Concern," and Note 11, "Debt," the Debtors filed a petition for relief under Chapter 11 and its debt agreements are classified as Liabilities Subject to Compromise. From November 14, 2012 to December 31, 2012, interest expense of $9,395 was accordingly not recorded.

CONDENSED_COMBINED_FINANCIAL_S2

CONDENSED COMBINED FINANCIAL STATEMENTS OF DEBTOR SUBSIDIARIES (Details) (USD $)	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
In Thousands, unless otherwise specified
Current Assets:	'	'	'	'
Cash and cash equivalents	$601,927	$507,342	$54,877	$253,649
Voyage receivables	147,964	179,259	'	'
Income taxes recoverable	3,952	0	'	'
Inventories	16,884	15,532	'	'
Prepaid expenses and other current assets	24,284	40,394	'	'
Deferred income taxes	5,464	0	'	'
Total Current Assets	817,313	771,427	'	'
Vessels and other property less accumulated depreciation	2,359,352	2,837,288	'	'
Deferred drydock expenditures, net	57,248	74,418	66,023	46,827
Total Vessels, Deferred Drydock and Other Property	2,416,600	2,911,706	'	'
Investments in affiliated companies	323,327	252,398	'	'
Intangible assets, less accumulated amortization	60,167	71,975	77,158	83,137
Goodwill	0	9,589	'	'
Other assets	27,087	26,440	'	'
Total Assets	3,644,494	4,043,535	'	'
Current Liabilities:	'	'	'	'
Accounts payable, accrued expenses and other current liabilities	121,582	99,273	'	'
Deferred income taxes	0	25,900	'	'
Income taxes payable, including reserve for uncertain tax positions of $234,623 and $326,121	256,258	329,799	'	'
Total Current Liabilities	377,840	454,972	'	'
Reserve for uncertain tax positions	26,585	17,067	'	'
Deferred gain on sale and leaseback of vessels	0	3,839	'	'
Deferred income taxes	369,954	343,162	'	'
Other liabilities	42,189	37,712	'	'
Liabilities subject to compromise, including pre-petition intercompany payables	2,888,173	2,652,537	'	'
Total Liabilities	3,704,741	3,509,289	'	'
Equity:	'	'	'	'
Total Equity	-60,247	534,246	1,002,292	1,283,153
Total Liabilities and Equity	3,644,494	4,043,535	'	'
Combined Debtor Entities [Member]	'	'	'	'
Current Assets:	'	'	'	'
Cash and cash equivalents	585,907	471,726	44,685	'
Voyage receivables	147,107	178,635	'	'
Income taxes recoverable	3,941	0	'	'
Other receivables	16,040	38,153	'	'
Inventories	16,884	15,532	'	'
Prepaid expenses and other current assets	27,808	40,070	'	'
Deferred income taxes	5,464	0	'	'
Total Current Assets	803,151	744,116	'	'
Vessels and other property less accumulated depreciation	2,370,880	2,849,331	'	'
Deferred drydock expenditures, net	57,248	74,418	'	'
Total Vessels, Deferred Drydock and Other Property	2,428,128	2,923,749	'	'
Investments in affiliated companies	323,327	252,098	'	'
Intangible assets, less accumulated amortization	59,943	71,736	'	'
Goodwill	0	9,668	'	'
Investments in subsidiaries	147,921	147,921	'	'
Pre and post-petition intercompany loans receivable and accrued interest	31,588	76,611	'	'
Pre-petition intercompany receivables	2,244,406	2,233,404	'	'
Post-petition intercompany receivables	15,819	927	'	'
Other assets	26,896	26,767	'	'
Total Assets	6,081,179	6,486,997	'	'
Current Liabilities:	'	'	'	'
Accounts payable, accrued expenses and other current liabilities	96,007	84,477	'	'
Deferred income taxes	0	25,900	'	'
Income taxes payable, including reserve for uncertain tax positions of $234,623 and $326,121	255,987	329,922	'	'
Total Current Liabilities	351,994	440,299	'	'
Reserve for uncertain tax positions	26,585	17,067	'	'
Deferred gain on sale and leaseback of vessels	0	3,839	'	'
Deferred income taxes	369,942	346,620	'	'
Other liabilities	30,977	29,326	'	'
Post-petition intercompany payables	48,677	47,075	'	'
Liabilities subject to compromise, including pre-petition intercompany payables	5,041,334	4,811,562	'	'
Total Liabilities	5,869,509	5,695,788	'	'
Equity:	'	'	'	'
Total Equity	211,670	791,209	'	'
Total Liabilities and Equity	$6,081,179	$6,486,997	'	'

CONDENSED_COMBINED_FINANCIAL_S3

CONDENSED COMBINED FINANCIAL STATEMENTS OF DEBTOR SUBSIDIARIES (Details 1) (USD $)

3 Months Ended

12 Months Ended

In Thousands, unless otherwise specified

Dec. 31, 2013

Sep. 30, 2013

Jun. 30, 2013

Mar. 31, 2013

Dec. 31, 2012

Sep. 30, 2012

Jun. 30, 2012

Mar. 31, 2012

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2011

Shipping Revenues:

'

'

'

'

'

'

'

'

'

'

'

Pool revenues

'

'

'

'

'

'

'

'

$177,068

$241,314

$245,028

Time and bareboat charter revenues

'

'

'

'

'

'

'

'

370,689

299,267

267,159

Voyage charter revenues

'

'

'

'

'

'

'

'

468,239

583,253

537,344

Shipping revenues

273,102

267,342

228,114

247,438

255,897

297,505

291,354

292,378

1,015,996

1,137,134

1,049,531

Operating Expenses:

'

'

'

'

'

'

'

'

'

'

'

Voyage expenses

'

'

'

'

'

'

'

'

252,668

296,288

259,330

Vessel expenses

'

'

'

'

'

'

'

'

265,146

285,023

287,610

Charter hire expenses

'

'

'

'

'

'

'

'

206,873

370,405

383,940

Depreciation and amortization

'

'

'

'

'

'

'

'

176,276

201,284

179,721

General and administrative

'

'

'

'

'

'

'

'

97,663

88,845

83,178

Severance and relocation

'

'

'

'

'

'

'

'

3,097

3,163

0

Goodwill and other intangibles impairment charge

'

'

'

'

'

'

'

'

16,214

0

0

Loss on disposal of vessels, including impairments

-382,614

[1]

-63

[1]

1,228

[1]

-22

[1]

-271,418

[2]

-332

[2]

285

[2]

106

[2]

-365,257

-271,359

2,060

Total Operating Expenses

'

'

'

'

'

'

'

'

1,383,194

1,516,367

1,191,719

Loss from Vessel Operations

-376,619

7,768

432

1,221

-311,224

-13,928

-30,439

-23,642

-367,198

-379,233

-142,188

Equity in Income of Affiliated Companies

'

'

'

'

'

'

'

'

40,894

33,486

20,555

Operating Loss

'

'

'

'

'

'

'

'

-326,304

-345,747

-121,633

Other Expense

'

'

'

'

'

'

'

'

849

-1,314

2,154

Loss before Interest Expense, Reorganization Items and Income Taxes

'

'

'

'

'

'

'

'

-325,455

-347,061

-119,479

Interest Expense

-28

-3

-31

-288

-25,013

[3]

-23,314

[3]

-22,084

[3]

-23,010

[3]

-350

-93,421

-79,898

Loss before Reorganization Items and Income Taxes

'

'

'

'

'

'

'

'

-325,805

-440,482

-199,377

Reorganization Items, net

90,341

[4]

14,705

[4]

37,503

[4]

184,621

[4]

41,113

0

0

0

327,170

41,113

0

Loss before Income Taxes

'

'

'

'

'

'

'

'

-652,975

-481,595

-199,377

Income tax benefit/(provision)

8,958

-1,947

1,899

5,835

1,203

-105

911

-528

14,745

1,481

-1,986

Net Loss

-447,281

960

-24,147

-167,762

-364,773

-25,786

-52,695

-36,860

-638,230

-480,114

-201,363

Combined Debtor Entities [Member]

'

'

'

'

'

'

'

'

'

'

'

Shipping Revenues:

'

'

'

'

'

'

'

'

'

'

'

Pool revenues

'

'

'

'

'

'

'

'

176,863

240,487

'

Time and bareboat charter revenues

'

'

'

'

'

'

'

'

370,619

299,220

'

Voyage charter revenues

'

'

'

'

'

'

'

'

468,406

583,253

'

Sunoco termination fee

'

'

'

'

'

'

'

'

0

13,300

'

Shipping revenues

'

'

'

'

'

'

'

'

1,015,888

1,136,260

'

Operating Expenses:

'

'

'

'

'

'

'

'

'

'

'

Voyage expenses

'

'

'

'

'

'

'

'

252,862

297,652

'

Vessel expenses

'

'

'

'

'

'

'

'

266,016

283,858

'

Charter hire expenses

'

'

'

'

'

'

'

'

206,780

368,298

'

Depreciation and amortization

'

'

'

'

'

'

'

'

176,886

201,670

'

General and administrative

'

'

'

'

'

'

'

'

69,106

66,544

'

Severance and relocation

'

'

'

'

'

'

'

'

3,238

0

'

Goodwill and other intangibles impairment charge

'

'

'

'

'

'

'

'

16,293

0

'

Loss on disposal of vessels, including impairments

'

'

'

'

'

'

'

'

365,168

271,295

'

Total Operating Expenses

'

'

'

'

'

'

'

'

1,356,349

1,489,317

'

Loss from Vessel Operations

'

'

'

'

'

'

'

'

-340,461

-353,057

'

Equity in Income of Affiliated Companies

'

'

'

'

'

'

'

'

40,894

33,486

'

Operating Loss

'

'

'

'

'

'

'

'

-299,567

-319,571

'

Other Expense

'

'

'

'

'

'

'

'

-16,130

-21,684

'

Loss before Interest Expense, Reorganization Items and Income Taxes

'

'

'

'

'

'

'

'

-315,697

-341,255

'

Interest Expense

'

'

'

'

'

'

'

'

-350

-93,421

'

Loss before Reorganization Items and Income Taxes

'

'

'

'

'

'

'

'

-316,047

-434,676

'

Reorganization Items, net

'

'

'

'

'

'

'

'

-327,170

-41,113

'

Loss before Income Taxes

'

'

'

'

'

'

'

'

-643,217

-475,789

'

Income tax benefit/(provision)

'

'

'

'

'

'

'

'

18,883

1,485

'

Net Loss

'

'

'

'

'

'

'

'

($624,334)

($474,304)

'

[1]

As discussed in Note 7, "Vessels, Deferred Drydock and Other Property," vessel impairment charges aggregating $365,976 were recorded in the fourth quarter. Further, as discussed in Note 10, "Goodwill and Intangible Assets," impairment charges aggregating $16,214 for goodwill and intangible assets related to the International Crude Tankers Lightering business were recorded in the fourth quarter.

[2]

As discussed in Note 7, "Vessels, Deferred Drydock and Other Property," impairment charges aggregating $279,382 were recorded in the fourth quarter.

[3]

As discussed in Note 2, "Bankruptcy Filing and Going Concern," and Note 11, "Debt," the Debtors filed a petition for relief under Chapter 11 and its debt agreements are classified as Liabilities Subject to Compromise. From November 14, 2012 to December 31, 2012, interest expense of $9,395 was accordingly not recorded.

[4]

As discussed in Note 3, "Liabilities Subject to Compromise and Reorganization Items," the Company adjusts its accrued liabilities relating to rejected executory contracts when new information becomes available. In the fourth quarter, the Company increased its accruals by $69,154 based upon such new information.

CONDENSED_COMBINED_FINANCIAL_S4

CONDENSED COMBINED FINANCIAL STATEMENTS OF DEBTOR SUBSIDIARIES (Details 2) (USD $)	3 Months Ended								12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2013	Sep. 30, 2013	Jun. 30, 2013	Mar. 31, 2013	Dec. 31, 2012	Sep. 30, 2012	Jun. 30, 2012	Mar. 31, 2012	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Cash Flows from Operating Activities:	'	'	'	'	'	'	'	'	'	'	'
Net loss	($447,281)	$960	($24,147)	($167,762)	($364,773)	($25,786)	($52,695)	($36,860)	($638,230)	($480,114)	($201,363)
Items included in net loss not affecting cash flows:	'	'	'	'	'	'	'	'	'	'	'
Depreciation and amortization	'	'	'	'	'	'	'	'	176,276	201,284	179,721
Loss on write-down of vessels and other fixed assets	'	'	'	'	'	'	'	'	366,439	279,382	0
Goodwill and other intangibles write-down	'	'	'	'	'	'	'	'	16,214	0	0
Amortization of deferred gain on sale and leasebacks	'	'	'	'	'	'	'	'	42	-5,905	-29,825
Amortization of debt discount and other deferred financing costs	'	'	'	'	'	'	'	'	0	3,198	3,576
Deferred financing costs write-off	'	'	'	'	'	'	'	'	0	12,540	0
Compensation relating to restricted stock and stock option grants	'	'	'	'	'	'	'	'	-131	7,910	10,069
Dedesignation of interest rate swap agreements	'	'	'	'	'	'	'	'	0	1,866	0
Deferred income tax benefit	'	'	'	'	'	'	'	'	-7,398	-29,751	-29,636
Undistributed earnings of affiliated companies	'	'	'	'	'	'	'	'	-35,826	-22,771	-7,628
Deferred payment obligations on charters-in	'	'	'	'	'	'	'	'	5,446	5,600	5,399
Reorganization items, non-cash	'	'	'	'	'	'	'	'	261,221	34,676	0
(Gain)/loss on sublease contracts	'	'	'	'	'	'	'	'	-896	895	0
Other - net	'	'	'	'	'	'	'	'	2,243	7,133	4,060
Items included in net loss related to investing and financing activities:	'	'	'	'	'	'	'	'	'	'	'
Loss on sale of securities and other investments - net	'	'	'	'	'	'	'	'	198	3,166	-313
Gain on disposal of vessels - net	'	'	'	'	'	'	'	'	-1,182	-8,023	-2,060
Payments for drydocking	'	'	'	'	'	'	'	'	-22,024	-45,990	-47,360
Net cash provided by operating activities	'	'	'	'	'	'	'	'	141,896	-32,899	-61,061
Cash Flows from Investing Activities:	'	'	'	'	'	'	'	'	'	'	'
Proceeds from sale of marketable securities and investments	'	'	'	'	'	'	'	'	459	13,000	3,491
Proceeds from the disposal of vessels	'	'	'	'	'	'	'	'	485	12,886	19,628
Expenditures for vessels and other property	'	'	'	'	'	'	'	'	-2,181	-2,862	-6,736
Distributions from affiliated companies	'	'	'	'	'	'	'	'	2,097	6,608	8,733
Other - net	'	'	'	'	'	'	'	'	979	563	3,532
Net cash provided by/(used in) investing activities	'	'	'	'	'	'	'	'	-34,538	-22,409	-154,173
Cash Flows from Financing Activities:	'	'	'	'	'	'	'	'	'	'	'
Purchases of treasury stock	'	'	'	'	'	'	'	'	-42	-307	-920
Issuance of debt, net of issuance costs and deferred financing costs	'	'	'	'	'	'	'	'	0	572,000	168,393
Payments on debt, including adequate protection payments	'	'	'	'	'	'	'	'	-12,731	-63,990	-104,774
Issuance of common stock upon exercise of stock options	'	'	'	'	'	'	'	'	0	70	638
Net cash provided by/(used in) financing activities	'	'	'	'	'	'	'	'	-12,773	507,773	16,462
Net increase in cash and cash equivalents	'	'	'	'	'	'	'	'	94,585	452,465	-198,772
Cash and cash equivalents at beginning of year	'	'	'	507,342	'	'	'	54,877	507,342	54,877	253,649
Cash and cash equivalents at end of year	601,927	'	'	'	507,342	'	'	'	601,927	507,342	54,877
Combined Debtor Entities [Member]	'	'	'	'	'	'	'	'	'	'	'
Cash Flows from Operating Activities:	'	'	'	'	'	'	'	'	'	'	'
Net loss	'	'	'	'	'	'	'	'	-624,334	-474,304	'
Items included in net loss not affecting cash flows:	'	'	'	'	'	'	'	'	'	'	'
Depreciation and amortization	'	'	'	'	'	'	'	'	176,886	201,670	'
Loss on write-down of vessels and other fixed assets	'	'	'	'	'	'	'	'	366,438	279,382	'
Goodwill and other intangibles write-down	'	'	'	'	'	'	'	'	16,293	0	'
Amortization of deferred gain on sale and leasebacks	'	'	'	'	'	'	'	'	42	-5,905	'
Amortization of debt discount and other deferred financing costs	'	'	'	'	'	'	'	'	0	3,198	'
Deferred financing costs write-off	'	'	'	'	'	'	'	'	0	12,540	'
Compensation relating to restricted stock and stock option grants	'	'	'	'	'	'	'	'	-131	7,076	'
Dedesignation of interest rate swap agreements	'	'	'	'	'	'	'	'	0	1,866	'
Deferred income tax benefit	'	'	'	'	'	'	'	'	-10,896	-30,065	'
Undistributed earnings of affiliated companies	'	'	'	'	'	'	'	'	-35,826	-22,771	'
Deferred payment obligations on charters-in	'	'	'	'	'	'	'	'	5,446	5,600	'
Reorganization items, non-cash	'	'	'	'	'	'	'	'	261,221	34,676	'
(Gain)/loss on sublease contracts	'	'	'	'	'	'	'	'	-896	895	'
Other - net	'	'	'	'	'	'	'	'	2,242	7,190	'
Items included in net loss related to investing and financing activities:	'	'	'	'	'	'	'	'	'	'	'
Loss on sale of securities and other investments - net	'	'	'	'	'	'	'	'	198	3,132	'
Gain on disposal of vessels - net	'	'	'	'	'	'	'	'	-1,270	-8,087	'
Payments for drydocking	'	'	'	'	'	'	'	'	-22,024	-45,990	'
Changes in operating assets and liabilities	'	'	'	'	'	'	'	'	-16,439	33,683	'
Net cash provided by operating activities	'	'	'	'	'	'	'	'	116,950	3,786	'
Cash Flows from Investing Activities:	'	'	'	'	'	'	'	'	'	'	'
Proceeds from sale of marketable securities and investments	'	'	'	'	'	'	'	'	459	12,979	'
Proceeds from the disposal of vessels	'	'	'	'	'	'	'	'	485	12,886	'
Expenditures for vessels and other property	'	'	'	'	'	'	'	'	-38,325	-54,625	'
Distributions from affiliated companies	'	'	'	'	'	'	'	'	2,097	6,608	'
Net change in intercompany loans due from non-debtors	'	'	'	'	'	'	'	'	44,564	-62,928	'
Other - net	'	'	'	'	'	'	'	'	724	564	'
Net cash provided by/(used in) investing activities	'	'	'	'	'	'	'	'	10,004	-84,516	'
Cash Flows from Financing Activities:	'	'	'	'	'	'	'	'	'	'	'
Purchases of treasury stock	'	'	'	'	'	'	'	'	-42	-307	'
Issuance of debt, net of issuance costs and deferred financing costs	'	'	'	'	'	'	'	'	0	572,000	'
Payments on debt, including adequate protection payments	'	'	'	'	'	'	'	'	-12,731	-63,990	'
Issuance of common stock upon exercise of stock options	'	'	'	'	'	'	'	'	0	68	'
Net cash provided by/(used in) financing activities	'	'	'	'	'	'	'	'	-12,773	507,771	'
Net increase in cash and cash equivalents	'	'	'	'	'	'	'	'	114,181	427,041	'
Cash and cash equivalents at beginning of year	'	'	'	471,726	'	'	'	44,685	471,726	44,685	'
Cash and cash equivalents at end of year	$585,907	'	'	'	$471,726	'	'	'	$585,907	$471,726	'

CONDENSED_COMBINED_FINANCIAL_S5

CONDENSED COMBINED FINANCIAL STATEMENTS OF DEBTOR SUBSIDIARIES (Details Textual) (USD $)	Dec. 31, 2013	Dec. 31, 2012
In Thousands, unless otherwise specified
Condensed Financial Statements, Captions [Line Items]	'	'
Reserve for uncertain tax positions	$234,623	$326,121
Combined Debtor Entities [Member]	'	'
Condensed Financial Statements, Captions [Line Items]	'	'
Reserve for uncertain tax positions	$234,623	$326,121

CONTINGENCIES_Details_Textual

CONTINGENCIES (Details Textual) (USD $)	Oct. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
In Thousands, unless otherwise specified
Loss Contingencies [Line Items]	'	'	'
Penalties and Interest Contingency	'	$3,500	'
Penalties and Interest Paid	'	'	3,500
Loss Contingency, Range of Possible Loss, Portion Not Accrued	$3,800	'	'

SUBSEQUENT_EVENTS_Details_Text

SUBSEQUENT EVENTS (Details Textual) (USD $)	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012
Subsequent Event [Line Items]	'	'
Restructuring Charges, Total	$3,163,000	$3,163,000
Unsecured Revolving Credit Facility Holding Percentage	72.00%	'
Common Stock, Par or Stated Value Per Share	$1,000	$1,000
Notes 8125 Percent Due 2018 [Member]	'	'
Subsequent Event [Line Items]	'	'
Debt Instrument, Interest Rate, Stated Percentage	8.13%	8.13%
Debt Instrument Maturity Year	'2018	'2018
Notes 750 Percent Due 2024 [Member]	'	'
Subsequent Event [Line Items]	'	'
Debt Instrument, Interest Rate, Stated Percentage	7.50%	7.50%
Debt Instrument Maturity Year	'2024	'2024
Non Executive Employees Incentive Program [Member]	'	'
Subsequent Event [Line Items]	'	'
Business Exit Costs	21,000,000	'
Deferred Compensation Arrangement with Individual, Cash Award Granted, Amount	6,000,000	'
Non Executive Employees Incentive Program [Member] | Maximum [Member]	'	'
Subsequent Event [Line Items]	'	'
Deferred Compensation Arrangement with Individual, Cash Awards Granted, Percentage	75.00%	'
Non Executive Employees Incentive Program [Member] | Minimum [Member]	'	'
Subsequent Event [Line Items]	'	'
Deferred Compensation Arrangement with Individual, Cash Awards Granted, Percentage	25.00%	'
To Achieve Objectives [Member] | Non Executive Employees Incentive Program [Member]	'	'
Subsequent Event [Line Items]	'	'
Deferred Compensation Arrangement with Individual, Cash Award Granted, Amount	5,000,000	'
For Additional Responsibilities [Member] | Non Executive Employees Incentive Program [Member]	'	'
Subsequent Event [Line Items]	'	'
Deferred Compensation Arrangement with Individual, Cash Award Granted, Amount	1,000,000	'
Subsequent Event [Member]	'	'
Subsequent Event [Line Items]	'	'
Unsecured Revolving Credit Facility Holding Percentage	72.00%	'
Bankruptcy Claims, Amount of Claims Settled	61,400	'
Plan of Reorganization, Amount of Prepetition Obligations to be Settled in Cash	61,400,000	'
Common Stock, Par or Stated Value Per Share	$0.00	'
Class of Warrant or Right, Exercise Price of Warrants or Rights	0.01	'
Subsequent Event [Member] | Revolving Credit Facility [Member]	'	'
Subsequent Event [Line Items]	'	'
Unsecured Revolving Credit Facility Holding Percentage	60.00%	'
Bankruptcy Claims, Amount of Claims Settled	300,000	'
Plan of Reorganization, Amount of Prepetition Obligations to be Settled in Cash	300,000,000	'
Subsequent Event [Member] | Secured Debt [Member]	'	'
Subsequent Event [Line Items]	'	'
Bankruptcy Claims, Amount of Claims Settled	735,000	'
Plan of Reorganization, Amount of Prepetition Obligations to be Settled in Cash	735,000,000	'
Subsequent Event [Member] | Notes 8125 Percent Due 2018 [Member]	'	'
Subsequent Event [Line Items]	'	'
Debt Instrument, Interest Rate, Stated Percentage	8.13%	'
Debt Instrument Maturity Year	'2018	'
Subsequent Event [Member] | Notes 750 Percent Due 2024 [Member]	'	'
Subsequent Event [Line Items]	'	'
Debt Instrument, Interest Rate, Stated Percentage	7.50%	'
Debt Instrument Maturity Year	'2024	'
One-time Termination Benefits [Member] | Subsequent Event [Member]	'	'
Subsequent Event [Line Items]	'	'
Restructuring Charges, Total	34,000,000	'
Business Exit Costs	21,000,000	'
Other Restructuring Costs	$13,000,000	'