Condensed Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Thousands		9 Months Ended
		Sep. 30, 2020	Sep. 30, 2019
Operating activities:
Net loss		$ (167,269)	$ (80,645)
Adjustments to reconcile net loss to net cash used in operating activities:
Depreciation		53,614	57,629
Amortization of deferred drydocking and survey costs		32,414	16,076
Amortization of debt premium and discounts		2,418	(1,562)
Provision for deferred income taxes		107	759
Gain on asset dispositions, net		7,511	1,047
Affiliate credit loss impairment expense		53,581	0
Affiliate guarantee obligation		2,000	0
Long-lived asset impairments		67,634	5,224
Changes in investments in unconsolidated companies		0	435
Compensation expense - stock-based		3,959	16,599
Changes in assets and liabilities, net:
Trade and other receivables		9,434	(11,796)
Changes in due to/from affiliate, net		9,852	14,898
Accounts payable		(14,548)	(8,267)
Accrued costs and expenses		(18,189)	(10,574)
Cash paid for deferred drydocking and survey costs		(29,499)	(43,701)
Other, net		3,809	9,268
Net cash provided by (used in) operating activities		1,806	(36,704)
Cash flows from investing activities:
Proceeds from sales of assets		31,498	25,092
Additions to properties and equipment		(4,682)	(13,931)
Net cash provided by investing activities		26,816	11,161
Cash flows from financing activities:
Principal payments on long-term debt		(33,520)	(6,458)
Taxes on share-based awards		(702)	(3,112)
Other		0	1
Net cash used in financing activities		(34,222)	(9,569)
Net change in cash, cash equivalents and restricted cash		(5,600)	(35,112)
Cash, cash equivalents and restricted cash at beginning of period		227,608	397,744
Cash, cash equivalents and restricted cash at end of period	[1]	222,008	362,632
Supplemental disclosure of cash flow information:
Interest, net of amounts capitalized		16,169	24,482
Income taxes		$ 9,940	$ 10,386

[1] Cash, cash equivalents and restricted cash at September 30, 2020 includes $3.4 million in long-term restricted cash.