Condensed Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Cash Flows From Operating Activities
Net loss	$ (42,148)	$ (33,863)
Adjustments to reconcile net loss to net cash provided by (used in) operating activities:
Depreciation and amortization	11,178	8,249
Amortization of deferred financing costs and other, net	701	687
Amortization of right-to-use lease assets	(9)	(3)
Stock-based compensation	1,828	1,611
Deferred income taxes	(149)	(2,801)
Change in fair value of contingent acquisition consideration	56	0
Gain on foreign currency	(130)	(70)
Write-off of unamortized issuance costs related to debt refinancing	9,004	0
Changes in operating assets and liabilities
Marine operating supplies and inventories	482	(382)
Prepaid expenses and other current assets	(4,890)	(2,080)
Unearned passenger revenues	29,563	21,438
Other long-term assets	(261)	675
Other long-term liabilities	845	1,798
Accounts payable and accrued expenses	(908)	(2,179)
Net cash provided by (used in) operating activities	5,162	(6,920)
Cash Flows From Investing Activities
Purchases of property and equipment	(7,522)	(3,800)
Acquisition (net of cash acquired)	0	(6,872)
Net cash used in investing activities	(7,522)	(10,672)
Cash Flows From Financing Activities
Proceeds from long-term debt	360,000	0
Repayments of long-term debt	(334,684)	(500)
Payment of deferred financing costs	(10,781)	(31)
Repurchase under stock-based compensation plans and related tax impacts	(6)	(7)
Net cash provided by (used in) financing activities	14,529	(538)
Net increase (decrease) in cash, cash equivalents and restricted cash	12,169	(18,130)
Cash, cash equivalents and restricted cash at beginning of period	172,693	204,515
Cash, cash equivalents and restricted cash at end of period	184,862	186,385
Supplemental disclosures of cash flow information:
Interest	3,613	4,146
Income taxes	58	1
Non-cash investing and financing activities:
Non-cash preferred stock dividend	1,298	1,301
Shares issued for acquisition	$ 0	$ 1,770