Condensed Consolidated Statements of Stockholders' Equity (Unaudited) - USD ($) $ in Thousands	Total	Cumulative effect of adoption of ASU 2020-06	Common Stock	Common Stock Warrant Issued For Vessel Consideration	Additional Paid-in Capital	Additional Paid-in Capital Cumulative effect of adoption of ASU 2020-06	Accumulated Deficit	Accumulated Deficit Cumulative effect of adoption of ASU 2020-06	Accumulated Other Comprehensive Income
Beginning balance (in shares) at Dec. 31, 2021			12,917,027
Beginning balance at Dec. 31, 2021	$ 671,266	$ (12,050)	$ 129		$ 982,746	$ (20,726)	$ (313,495)	$ 8,676	$ 1,886
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	53,073						53,073
Dividends	(27,112)						(27,112)
Issuance of shares due to vesting of equity awards (in shares)			60,890
Issuance of shares due to vesting of equity awards	0		$ 1		(1)
Issuance of shares upon exercise of stock options (in shares)			8,077
Issuance of shares upon exercise of stock options	85				85
Effect of cash flow hedges	8,681								8,681
Fees for equity offerings	201				201
Cash used to settle net share equity awards	(1,862)				(1,862)
Stock-based compensation	1,487				1,487
Ending balance (in shares) at Mar. 31, 2022			12,985,994
Ending balance at Mar. 31, 2022	693,769		$ 130		961,930		(278,858)		10,567
Beginning balance (in shares) at Dec. 31, 2021			12,917,027
Beginning balance at Dec. 31, 2021	671,266	$ (12,050)	$ 129		982,746	$ (20,726)	(313,495)	$ 8,676	1,886
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	147,527
Effect of cash flow hedges	10,851
Ending balance (in shares) at Jun. 30, 2022			12,989,181
Ending balance at Jun. 30, 2022	765,495		$ 130		963,482		(210,854)		12,737
Beginning balance (in shares) at Mar. 31, 2022			12,985,994
Beginning balance at Mar. 31, 2022	693,769		$ 130		961,930		(278,858)		10,567
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	94,453						94,453
Dividends	(26,449)						(26,449)
Issuance of shares due to vesting of equity awards (in shares)				3,187
Issuance of shares upon exercise of stock options	2,170								2,170
Effect of cash flow hedges	2,170
Cash used to settle net share equity awards	(53)				(53)
Stock-based compensation	1,605				1,605
Ending balance (in shares) at Jun. 30, 2022			12,989,181
Ending balance at Jun. 30, 2022	765,495		$ 130		963,482		(210,854)		12,737
Beginning balance (in shares) at Dec. 31, 2022			13,003,702
Beginning balance at Dec. 31, 2022	819,181		$ 130		966,058		(163,556)		16,549
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	3,202						3,202
Dividends	(8,019)						(8,019)
Issuance of shares due to vesting of equity awards (in shares)			61,358
Issuance of shares due to vesting of equity awards	0		$ 1		(1)
Effect of cash flow hedges	(2,859)								(2,859)
Cash used to settle net share equity awards	(1,651)				(1,651)
Stock-based compensation	1,855				1,855
Ending balance (in shares) at Mar. 31, 2023			13,065,060
Ending balance at Mar. 31, 2023	811,709		$ 131		966,261		(168,373)		13,690
Beginning balance (in shares) at Dec. 31, 2022			13,003,702
Beginning balance at Dec. 31, 2022	819,181		$ 130		966,058		(163,556)		16,549
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	21,228
Effect of cash flow hedges	(1,824)
Ending balance (in shares) at Jun. 30, 2023			9,310,443
Ending balance at Jun. 30, 2023	608,757		$ 93		745,636		(151,697)		14,725
Beginning balance (in shares) at Mar. 31, 2023			13,065,060
Beginning balance at Mar. 31, 2023	811,709		$ 131		966,261		(168,373)		13,690
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	18,026						18,026
Dividends	(1,350)						(1,350)
Issuance of shares due to vesting of equity awards (in shares)			26,944
Repurchase of common stock - related party (Note 6) (in shares)			(3,781,561)
Repurchase of common stock – related party (Note 6)	(222,818)		$ (38)		(222,780)
Effect of cash flow hedges	1,035								1,035
Stock-based compensation	2,155				2,155
Ending balance (in shares) at Jun. 30, 2023			9,310,443
Ending balance at Jun. 30, 2023	$ 608,757		$ 93		$ 745,636		$ (151,697)		$ 14,725