Fair Value - Estimated Fair Values and Carrying Values for Customer Receivables and Debt Instruments (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020	Aug. 31, 2020	May 01, 2020
Net Carrying Value
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Redeemable convertible preferred stock, Series A	$ 208,551	$ 0
Fair Value
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Redeemable convertible preferred stock, Series A	208,551	0
Term loan | Net Carrying Value | 7.5% Term Loan due September 2028
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Debt Instrument	29,006	31,746
Term loan | Net Carrying Value | LIBOR + 2.5% Term Loan due December 2021
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Debt Instrument	0	114,138
Term loan | Fair Value | 7.5% Term Loan due September 2028
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Debt Instrument	35,669	37,658
Term loan | Fair Value | LIBOR + 2.5% Term Loan due December 2021
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Debt Instrument	0	116,113
Notes | Net Carrying Value | 10.25% Senior Secured Notes due March 2027
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Debt Instrument	68,968	68,614
Notes | Fair Value | 10.25% Senior Secured Notes due March 2027
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Debt Instrument	72,573	71,831
Senior secured notes | Net Carrying Value | 2.5% Green Convertible Senior Notes due August 2025
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Debt Instrument	222,863	99,394
Senior secured notes | Net Carrying Value | 6.07% Senior Secured Notes due March 2030
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Debt Instrument	73,262	77,007
Senior secured notes | Net Carrying Value | 3.04% Senior Secured Notes due June 2031
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Debt Instrument	132,631	0
Senior secured notes | Fair Value | 2.5% Green Convertible Senior Notes due August 2025
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Debt Instrument	356,822	426,229
Senior secured notes | Fair Value | 6.07% Senior Secured Notes due March 2030
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Debt Instrument		89,654
Senior secured notes | Fair Value | 3.04% Senior Secured Notes due June 2031
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Debt Instrument		0
Customer financing receivables | Net Carrying Value
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Customer financing receivables	45,269	50,746
Customer financing receivables | Fair Value
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Customer financing receivables	$ 38,334	$ 42,679
10.25% Senior Secured Notes due March 2027
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Interest Rate				10.25%
10.25% Senior Secured Notes due March 2027 | Notes
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Interest Rate	10.25%	10.25%
2.5% Green Convertible Senior Notes due August 2025 | Senior secured notes
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Interest Rate	2.50%	2.50%	2.50%
7.5% Term Loan due September 2028 | Term loan
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Interest Rate	7.50%	7.50%
6.07% Senior Secured Notes due March 2030 | Senior secured notes
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Interest Rate	6.07%	6.07%
6.07% Senior Secured Notes due March 2030 | Senior secured notes | Fair Value
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Debt Instrument	$ 83,251
3.04% Senior Secured Notes due June 2031 | Senior secured notes
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Interest Rate		3.04%
3.04% Senior Secured Notes due June 2031 | Senior secured notes | Fair Value
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Debt Instrument	$ 137,983
LIBOR + 2.5% Term Loan due December 2021 | Term loan
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Interest Rate	2.50%	2.50%