Significant Accounting Policies - Additional Information (Details)	12 Months Ended
	Dec. 31, 2023 USD ($) t	Dec. 31, 2022 USD ($) t	Dec. 31, 2021 USD ($)	Dec. 31, 2020 USD ($)
Property, Plant and Equipment [Line Items]
Vessel useful lives	3 years
Charter rates average, term	15 years
Vessel impairment	$ 0	$ 0	$ 0
Amortization period for vessels over fifteen years old	30 months
Age of vessels	15 years
Amortization period for vessels less than fifteen years old	60 months
Depreciation expense	$ 200,000	200,000	300,000
Impairment of operating lease right-of-use assets	722,000	2,212,000	0
Net gain on lower of cost and NRV adjustments	(5,900,000)	(8,100,000)	(6,300,000)
Collateral on derivatives	2,219,000	909,000
Adjustment to beginning retained earnings	600,218,000	819,181,000	671,266,000	$ 470,418,000
Debt Discounts and Debt Issuance Costs	(8,266,000)	(7,387,000)
Convertible Bond Debt
Property, Plant and Equipment [Line Items]
Debt Discounts and Debt Issuance Costs	(229,000)	(620,000)
Accumulated Deficit
Property, Plant and Equipment [Line Items]
Adjustment to beginning retained earnings	(156,727,000)	(163,556,000)	(313,495,000)	(472,138,000)
Additional Paid-in Capital
Property, Plant and Equipment [Line Items]
Adjustment to beginning retained earnings	$ 748,401,000	$ 966,058,000	982,746,000	$ 943,572,000
Accounting Standards Update 2020-06 | Convertible Debt Securities | Convertible Bond Debt
Property, Plant and Equipment [Line Items]
Debt Discounts and Debt Issuance Costs			12,000,000
Cumulative Effect, Period of Adoption, Adjustment
Property, Plant and Equipment [Line Items]
Adjustment to beginning retained earnings			(12,051,000)
Cumulative Effect, Period of Adoption, Adjustment | Accumulated Deficit
Property, Plant and Equipment [Line Items]
Adjustment to beginning retained earnings			8,675,000
Cumulative Effect, Period of Adoption, Adjustment | Additional Paid-in Capital
Property, Plant and Equipment [Line Items]
Adjustment to beginning retained earnings			(20,726,000)
Cumulative Effect, Period of Adoption, Adjustment | Accounting Standards Update 2020-06 | Accumulated Deficit
Property, Plant and Equipment [Line Items]
Adjustment to beginning retained earnings			8,700,000
Cumulative Effect, Period of Adoption, Adjustment | Accounting Standards Update 2020-06 | Additional Paid-in Capital
Property, Plant and Equipment [Line Items]
Adjustment to beginning retained earnings			$ 20,700,000
Vessels
Property, Plant and Equipment [Line Items]
Vessel useful lives	25 years
Scrap value of vessels | t	400	300