Condensed Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022
Cash flows from operating activities:
Net income	$ 21,228	$ 147,527
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation	22,633	23,573
Noncash operating lease expense	13,322	12,664
Amortization of deferred drydocking costs	6,930	6,261
Amortization of debt discount and debt issuance costs	1,146	1,092
Impairment of operating lease right-of-use assets	722	0
Gain on sale of vessels	(14,876)	0
Unrealized gain on derivative instruments, net	(1,785)	(1,393)
Stock-based compensation expense	4,010	3,092
Drydocking expenditures	(8,259)	(16,098)
Changes in operating assets and liabilities:
Accounts payable	2,172	1,793
Accounts receivable	3,741	(15,492)
Accrued interest	506	51
Inventories	6,385	(7,542)
Operating lease liabilities current and noncurrent	(14,607)	(12,664)
Collateral on derivatives	233	(1,689)
Fair value of derivatives, other current and noncurrent assets	434	(453)
Other accrued liabilities	(6,105)	(868)
Prepaid expenses	(2,002)	(1,162)
Unearned charter hire revenue	(3,670)	1,522
Net cash provided by operating activities	32,158	140,214
Cash flows from investing activities:
Purchase of vessels and vessel improvements	(81,708)	(495)
Purchase of BWTS	(1,391)	(4,807)
Proceeds from hull and machinery insurance claims	174	0
Net proceeds from sale of vessels	40,698	0
Purchase of other fixed assets	(63)	(241)
Net cash used in investing activities	(42,290)	(5,543)
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	(24,900)	(24,900)
Repurchase of Common Stock and associated fees – related party (Note 6)	(221,196)	0
Dividends paid	(9,979)	(52,816)
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	(1,652)	(1,915)
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	(61,344)	(79,363)
Net (decrease)/increase in cash, cash equivalents and restricted cash	(71,476)	55,308
Cash, cash equivalents and restricted cash at beginning of period	189,754	86,222
Cash, cash equivalents and restricted cash at end of period	$ 118,278	$ 141,530