Percentage points added to the reference rate to compute the variable rate on the debt instrument.

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- Definition

Amount, before unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but is not limited to, notes payable, bonds payable, commercial loans, mortgage loans, convertible debt, subordinated debt and other types of debt.

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- Definition

Contractual interest rate for funds borrowed, under the debt agreement.

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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No definition available.

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- Definition

Amount of borrowing capacity currently available under the credit facility (current borrowing capacity less the amount of borrowings outstanding).

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- Definition

Amount, after unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

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Amount, after unamortized (discount) premium and debt issuance costs, of long-term debt, classified as current. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

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Amount after unamortized (discount) premium and debt issuance costs of long-term debt classified as noncurrent and excluding amounts to be repaid within one year or the normal operating cycle, if longer. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

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Outstanding Loans and Security Agreements - Schedule of Debt (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2021	Dec. 31, 2021	Dec. 31, 2020	Aug. 31, 2020	May 01, 2020
Debt Instrument [Line Items]
Unpaid Principal Balance		$ 539,669	$ 527,054
Current portion of debt		25,831	120,846
Long-term portion of debt		500,899	270,053
Total		526,730	390,899
Unused Borrowing Capacity			968
10.25% Senior Secured Notes due March 2027
Debt Instrument [Line Items]
Interest Rate					10.25%
Letters of Credit \| Letter of Credit due December 2021, Non-Recourse
Debt Instrument [Line Items]
Unpaid Principal Balance			0
Current portion of debt			0
Long-term portion of debt			0
Total			0
Unused Borrowing Capacity			$ 968
Interest Rate			2.25%
Notes \| 10.25% Senior Secured Notes due March 2027
Debt Instrument [Line Items]
Unpaid Principal Balance		70,000	$ 70,000
Current portion of debt		8,348	0
Long-term portion of debt		60,620	68,614
Total		$ 68,968	$ 68,614
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		222,863	99,394
Total		$ 222,863	$ 99,394
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		$ 134,644
Current portion of debt		9,376
Long-term portion of debt		123,255
Total		$ 132,631
Interest Rate		3.04%
Senior secured notes \| 6.07% Senior Secured Notes due March 2030
Debt Instrument [Line Items]
Unpaid Principal Balance		$ 73,955	$ 77,837
Current portion of debt		4,671	3,882
Long-term portion of debt		68,591	73,125
Total		$ 73,262	$ 77,007
Interest Rate		6.07%	6.07%
Recourse debt
Debt Instrument [Line Items]
Unpaid Principal Balance		$ 300,000	$ 300,000
Current portion of debt		8,348	0
Long-term portion of debt		283,483	168,008
Total		291,831	168,008
Term loan \| 7.5% Term Loan due September 2028
Debt Instrument [Line Items]
Unpaid Principal Balance		31,070	34,456
Current portion of debt		3,436	2,826
Long-term portion of debt		25,570	28,920
Total		$ 29,006	$ 31,746
Interest Rate		7.50%	7.50%
Term loan \| LIBOR + 2.5% Term Loan due December 2021
Debt Instrument [Line Items]
Unpaid Principal Balance			$ 114,761
Current portion of debt			114,138
Long-term portion of debt			0
Total			$ 114,138
Interest Rate		2.50%	2.50%
LIBOR margin (as a percentage)	2.50%
Non-recourse debt
Debt Instrument [Line Items]
Unpaid Principal Balance		$ 239,669	$ 227,054
Current portion of debt		17,483	120,846
Long-term portion of debt		217,416	102,045
Total		$ 234,899	222,891
Unused Borrowing Capacity			$ 968