Outstanding Loans and Security Agreements (Tables)

6 Months Ended

Jun. 30, 2021

Debt Disclosure [Abstract]

Schedule of Debt

The following is a summary of our debt as of June 30, 2021 (in thousands, except percentage data):

	Unpaid Principal Balance		Net Carrying Value						Unused Borrowing Capacity		Interest Rate	Maturity Dates	Entity	Recourse
			Current		Long- Term		Total
10.25% Senior Secured Notes due March 2027	$	70,000	$	2,020	$	66,771	$	68,791	$	—	10.25%	March 2027	Company	Yes
2.5% Green Convertible Senior Notes due August 2025	230,000		—		221,879		221,879		—		2.5%	August 2025	Company	Yes
Total recourse debt	300,000		2,020		288,650		290,670		—
7.5% Term Loan due September 2028	32,683		3,149		27,167		30,316		—		7.5%	September  2028	PPA IIIa	No
6.07% Senior Secured Notes due March 2030	75,954		4,268		70,926		75,194		—		6.07%	March 2030	PPA IV	No
LIBOR + 2.5% Term Loan due December 2021	110,578		110,273		—		110,273		—		LIBOR plus margin	December 2021	PPA V	No
Letters of Credit due December 2021	—		—		—		—		759		2.25%	December 2021	PPA V	No
Total non-recourse debt	219,215		117,690		98,093		215,783		759
Total debt	$	519,215	$	119,710	$	386,743	$	506,453	$	759

The following is a summary of our debt as of December 31, 2020 (in thousands, except percentage data):

	Unpaid Principal Balance		Net Carrying Value						Unused Borrowing Capacity		Interest Rate	Maturity Dates	Entity	Recourse
			Current		Long- Term		Total
10.25% Senior Secured Notes due March 2027	$	70,000	$	—	$	68,614	$	68,614	$	—	10.25%	March 2027	Company	Yes
2.5% Green Convertible Senior Notes due August 2025	230,000		—		99,394		99,394		—		2.5%	August 2025	Company	Yes
Total recourse debt	300,000		—		168,008		168,008		—
7.5% Term Loan due September 2028	34,456		2,826		28,920		31,746		—		7.5%	September  2028	PPA IIIa	No
6.07% Senior Secured Notes due March 2030	77,837		3,882		73,125		77,007		—		6.07%	March 2030	PPA IV	No
LIBOR + 2.5% Term Loan due December 2021	114,761		114,138		—		114,138		—		LIBOR plus margin	December 2021	PPA V	No
Letters of Credit due December 2021	—		—		—		—		968		2.25%	December 2021	PPA V	No
Total non-recourse debt	227,054		120,846		102,045		222,891		968
Total debt	$	527,054	$	120,846	$	270,053	$	390,899	$	968

Schedule of Repayment and Interest Expense

The following table presents details of our outstanding loan principal repayment schedule as of June 30, 2021 (in thousands):

Remainder of 2021	$	114,110
2022	16,393
2023	22,166
2024	24,886
2025	28,022
Thereafter	313,638
	$	519,215