Condensed Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022
Cash flows from operating activities:
Net (loss)/income	$ 16,077	$ 224,743
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation	34,577	35,513
Noncash operating lease expense	17,890	21,083
Amortization of deferred drydocking costs	10,458	9,728
Amortization of debt discount and debt issuance costs	1,958	1,627
Loss on debt extinguishment	0	4,173
Impairment of operating lease right-of-use assets	722	0
Gain on sale of vessels	(19,731)	(9,336)
Unrealized loss/(gain) on derivative instruments, net	437	(8,517)
Stock-based compensation expense	5,680	4,542
Drydocking expenditures	(10,562)	(18,527)
Changes in operating assets and liabilities:
Accounts payable	1,381	650
Accounts receivable	7,707	(5,098)
Accrued interest	(969)	(1,241)
Inventories	1,199	(8,622)
Operating lease liabilities current and noncurrent	(19,570)	(21,076)
Collateral on derivatives	(3,471)	13,881
Fair value of derivatives, other current and noncurrent assets	(141)	(183)
Other accrued liabilities	(4,907)	(2,332)
Prepaid expenses	(1,301)	(1,223)
Unearned charter hire revenue	(1,469)	2,706
Net cash provided by operating activities	35,965	242,491
Cash flows from investing activities:
Purchase of vessels and vessel improvements	(81,802)	(781)
Advances for vessel purchases	0	(4,125)
Purchase of BWTS	(2,142)	(5,695)
Proceeds from hull and machinery insurance claims	174	0
Net proceeds from sale of vessels	56,609	14,944
Purchase of other fixed assets	(670)	(253)
Net cash (used in)/provided by investing activities	(27,831)	4,090
Cash flows from financing activities:
Proceeds from Revolving Facility, net of debt issuance costs – Global Ultraco Debt Facility	123,361	0
Proceeds from Term Facility, net of debt issuance costs – Global Ultraco Debt Facility	73,125	0
Repayment of Term Facility – Global Ultraco Debt Facility	(37,350)	(37,350)
Repurchase of Common Stock and associated fees – related party (Note 6)	(222,688)	0
Repurchase of Convertible Bond Debt	0	(14,188)
Dividends paid	(15,790)	(81,577)
Debt issuance costs paid to lenders – Original Global Ultraco Debt Facility	0	(18)
Cash paid for taxes related to net share settlement of equity awards	(1,989)	(2,351)
Other financing costs paid	(103)	0
Cash received from exercise of stock options	0	85
Proceeds from equity offerings, net of issuance costs	0	201
Net cash used in financing activities	(81,434)	(135,198)
Net (decrease)/increase in cash, cash equivalents and restricted cash	(73,300)	111,383
Cash, cash equivalents and restricted cash at beginning of period	189,754	86,222
Cash, cash equivalents and restricted cash at end of period	$ 116,454	$ 197,605