Condensed Consolidated Statements Of Cash Flows - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Cash flows from operating activities:
Net loss	$ (26,287)	$ (5,165)
Adjustments to reconcile net loss to net cash provided by operating activities:
Depreciation and amortization	46,353	37,537
Amortization of debt discount	53
Amortization of debt issuance costs	570	596
Share-based compensation	1,711	1,575
Deferred income taxes	(574)	(1,306)
(Gain) loss on disposition of assets, net	150	(367)
Losses related to convertible senior notes	20,922
Unrealized foreign currency (gain) loss	2,117	(3,333)
Change in fair value of contingent consideration		3,992
Changes in operating assets and liabilities:
Accounts receivable, net	59,059	(2,484)
Income tax receivable, net of income tax payable	(2,510)	(2,419)
Other current assets	23,196	(1,961)
Accounts payable and accrued liabilities	(50,489)	(18,036)
Deferred recertification and dry dock costs, net	(9,594)	(17,154)
Other, net	(193)	3,133
Net cash provided by (used in) operating activities	64,484	(5,392)
Cash flows from investing activities:
Capital expenditures	(3,605)	(6,665)
Proceeds from sale of assets		365
Proceeds from insurance recoveries	363
Net cash used in investing activities	(3,242)	(6,300)
Cash flows from financing activities:
Payments related to convertible senior notes	(60,699)
Repayment of MARAD Debt	(4,322)	(4,116)
Proceeds from settlement of capped calls	4,381
Debt issuance costs	(984)
Repurchases of common stock	(4,177)	(4,983)
Payments related to tax withholding for share-based compensation	(4,003)	(564)
Proceeds from issuance of ESPP shares	500	239
Net cash used in financing activities	(69,304)	(9,424)
Effect of exchange rate changes on cash and cash equivalents	(280)	1,187
Net decrease in cash and cash equivalents	(8,342)	(19,929)
Cash and cash equivalents:
Balance, beginning of year	332,191	189,111
Balance, end of period	$ 323,849	$ 169,182