Outstanding Loans and Security Agreements (Tables)

6 Months Ended

Jun. 30, 2018

Debt Disclosure [Abstract]

Schedule of debt

The following is a summary of the Company’s debt as of June 30, 2018 (in thousands):

	Unpaid Principal Balance		Net Carrying Value						Unused Borrowing Capacity		Interest Rate	Maturity Dates	Entity	Recourse
			Current		Long- Term		Total
5.22% senior secured notes	$	85,513	$	11,687	$	72,504	$	84,191	$	—	5.2%	March 2025	PPA II	No
Term loan	41,301		1,630		35,054		36,684		—		7.5%	September 2028	PPA IIIa	No
Term loan	25,153		890		23,243		24,133		—		LIBOR plus margin	October 2020	PPA IIIb	No
6.07% senior secured notes	84,418		2,150		81,073		83,223		—		6.1%	March 2030	PPA IV	No
Term loan	126,963		3,298		121,228		124,526		—		LIBOR plus margin	December 2021	PPA V	No
Letters of Credit	—		—		—		—		1,504		2.25%	December 2021	PPA V	No
Total non-recourse debt	363,348		19,655		333,102		352,757		1,504
Term loan	4,050		1,688		2,362		4,050		—		LIBOR plus margin	November 2020	Company	Yes
8%/5% convertible promissory notes	254,120		8,663		245,457		254,120		—		8.0%/5.0%	December 2019 & December 2020	Company	Yes
6% convertible promissory notes	294,759		—		254,062		254,062		—		5.0%/6.0%	December 2020	Company	Yes
10% notes	100,000		—		95,140		95,140		—		10.0%	July 2024	Company	Yes
Total recourse debt	652,929		10,351		597,021		607,372		—
Total debt	$	1,016,277	$	30,006	$	930,123	$	960,129	$	1,504

The following is a summary of the Company’s debt as of December 31, 2017 (in thousands):

	Unpaid Principal Balance		Net Carrying Value						Unused Borrowing Capacity		Interest Rate	Maturity Dates	Entity	Recourse
			Current		Long- Term		Total
5.22% senior secured notes	$	91,086	$	11,389	$	78,175	$	89,564	$	—	5.2%	March 2025	PPA II	No
Term loan	41,927		1,389		35,551		36,940		—		7.5%	September 2028	PPA IIIa	No
Term loan	25,599		876		23,488		24,364		—		LIBOR plus margin	October 2020	PPA IIIb	No
6.07% senior secured notes	85,303		1,846		82,186		84,032		—		6.1%	March 2030	PPA IV	No
Term loan	128,403		2,946		122,650		125,596		—		LIBOR plus margin	December 2021	PPA V	No
Letters of Credit	—		—		—		—		1,784		2.25%	December 2021	PPA V	No
Total non-recourse debt	372,318		18,446		342,050		360,496		1,784
Term loan	5,000		1,690		3,197		4,887		—		LIBOR plus margin	November 2020	Company	Yes
8% convertible promissory notes	244,717		—		244,717		244,717		—		8.0%	December 2019 & December 2020	Company	Yes
6% convertible promissory notes	286,069		—		236,724		236,724		—		5.0%/6.0%	December 2020	Company	Yes
10% notes	100,000		—		94,517		94,517		—		10.0%	July 2024	Company	Yes
Total recourse debt	635,786		1,690		579,155		580,845		—
Total debt	$	1,008,104	$	20,136	$	921,205	$	941,341	$	1,784

Schedule of repayment

The following table presents detail of the Company’s entire outstanding loan principal repayment schedule as of June 30, 2018 (in thousands):

Remaining 2018	$	19,322
2019	241,136
2020	389,909
2021	153,639
2022	40,059
Thereafter	172,212
	$	1,016,277