Consolidated Statements of Cash Flows - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Cash flows from operating activities
Net income	$ 79,996	$ 41,189	$ 32,891
Adjustments to reconcile net income to net cash from operating activities
Depreciation and amortization	97,313	104,908	104,167
Amortization of operating lease right-of-use assets	31,699	23,496	12,381
ARO accretion expense	1,494	1,430	1,370
Amortization of debt issuance costs	2,664	1,394	1,827
Deferred income taxes	2,255	(966)	408
Share of net earnings in equity method investee	(2,698)	(3,263)	(3,094)
Distributions from equity method investee	4,950	0	0
Long-term incentive compensation expense	956	0	0
Early extinguishment of lease liability on vessel acquisition	21,834	0	0
Non-cash restructuring expense	1,574	0	0
(Gain)/loss on other operating	(2,224)	0	0
Changes in operating assets and liabilities:
Accounts receivable	197,903	(247,174)	(2,453)
Inventories	(68,583)	(82,667)	(17,114)
Other current assets and other assets	(22,826)	(17,792)	(19,279)
Accounts payable and accrued liabilities	(258,281)	341,339	7,318
Derivative liabilities	3,083	445	(602)
Current portion of deferred revenue	135,154	(2,329)	2,050
Net investments in sales-type leases	12,225	10,229	8,777
Operating lease assets and liabilities	(30,252)	(22,436)	(11,912)
Other long-term liabilities	16,854	(6,190)	(7,771)
Net cash provided by (used in) operating activities	225,090	141,613	108,964
Cash flows from investing activities
Purchases of property and equipment	(119,267)	(36,091)	(41,258)
Net cash used in investing activities	(119,267)	(36,091)	(41,258)
Cash flows from financing activities
Proceeds from issuance of common stock, net	412,148	0	0
Proceeds from long-term debt - related party	654,000	118,309	62,750
Repayments of long-term debt - related party	(653,409)	(82,153)	(16,280)
Repayments of long term debt	(20,311)	(29,214)	(27,617)
Proceeds from revolving credit facility	140,000	0	0
Repayments of revolving credit facility	(140,000)	0	0
Payment of debt issuance costs	(5,951)	(1,188)	0
Related party note receivables	0	(200,500)	0
Collections of related party note receivables	6,600	122,338	0
Settlement of finance lease liability - related party	(25,000)	0	0
Principal payments under finance lease liabilities	(20,499)	(36,262)	(34,143)
Principal payments under finance lease liabilities - related party	(2,912)	(15,427)	(14,558)
Dividends paid	(1,313)	0	0
Distributions	(4,101)	0	(7,590)
Contributions	1,932	0	6,000
Net cash provided by (used in) financing activities	341,184	(124,097)	(31,438)
Net increase (decrease) in cash, cash equivalents and restricted cash	447,007	(18,575)	36,268
Cash, cash equivalents and restricted cash
Beginning of period	90,964	109,539	73,271
End of period	$ 537,971	$ 90,964	$ 109,539