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Outstanding Loans and Security Agreements - Schedule of Debt (Details) - USD ($) $ in Thousands	Dec. 31, 2022	Jun. 14, 2022	Dec. 31, 2021	Aug. 31, 2020	May 01, 2020
Debt Instrument [Line Items]
Unpaid Principal Balance	$ 419,083		$ 539,669
Current portion of debt	26,023		25,831
Long-term portion of debt	385,556		500,899
Total	411,579		526,730
10.25% Senior Secured Notes due March 2027
Debt Instrument [Line Items]
Interest Rate					10.25%
Notes \| 10.25% Senior Secured Notes due March 2027
Debt Instrument [Line Items]
Unpaid Principal Balance	61,653		70,000
Current portion of debt	12,716		8,348
Long-term portion of debt	48,244		60,620
Total	$ 60,960		$ 68,968
Interest Rate	10.25%		10.25%
Senior Secured Notes \| 2.5% Green Convertible Senior Notes due August 2025
Debt Instrument [Line Items]
Unpaid Principal Balance	$ 230,000		$ 230,000	$ 230,000
Current portion of debt	0		0
Long-term portion of debt	224,832		222,863
Total	$ 224,832		$ 222,863
Interest Rate	2.50%		2.50%	2.50%
Senior Secured Notes \| 3.04% Senior Secured Notes due June 30, 2031
Debt Instrument [Line Items]
Unpaid Principal Balance	$ 127,430		$ 134,644
Current portion of debt	13,307		9,376
Long-term portion of debt	112,480		123,255
Total	$ 125,787		$ 132,631
Interest Rate	3.04%		3.04%
Senior Secured Notes \| 6.07% Senior Secured Notes due March 2030
Debt Instrument [Line Items]
Unpaid Principal Balance			$ 73,955
Current portion of debt			4,671
Long-term portion of debt			68,591
Total			$ 73,262
Interest Rate	6.07%		6.07%
Recourse Debt
Debt Instrument [Line Items]
Unpaid Principal Balance	$ 291,653		$ 300,000
Current portion of debt	12,716		8,348
Long-term portion of debt	273,076		283,483
Total	$ 285,792		291,831
Term loan \| 7.5% Term Loan due September 2028
Debt Instrument [Line Items]
Unpaid Principal Balance			31,070
Current portion of debt			3,436
Long-term portion of debt			25,570
Total			$ 29,006
Interest Rate	7.50%	7.50%	7.50%
Non-recourse debt
Debt Instrument [Line Items]
Unpaid Principal Balance	$ 127,430		$ 239,669
Current portion of debt	13,307		17,483
Long-term portion of debt	112,480		217,416
Total	$ 125,787		$ 234,899