As of March 31, 2018, debt consisted of the following (in thousands, except percentages):



	Carrying Values, net of debt discount						Unused Borrowing Capacity		Interest Rate ⁽¹⁾		Maturity Date
	Current		Long Term		Total
Recourse debt:
Bank line of credit	$	—	$	247,000	$	247,000	$	406	4.98% - 5.24%		April 2020
Total recourse debt	$	—	$	247,000	$	247,000	$	406

Non-recourse debt:
Senior	4,224		895,755		899,979		6,413		3.90% - 5.30%		September 2020 - October 2024
Subordinated	2,296		109,936		112,232		—		6.71% - 7.70%		September 2020 - October 2024
Securitization Class A	3,589		80,968		84,557		—		4.40	%	July 2024
Securitization Class B	446		9,543		9,989		—		5.38	%	July 2024
SREC Loans	18,091		12,181		30,272		4,402		7.41	%	July 2021
Total non-recourse debt	$	28,646	$	1,108,383	$	1,137,029	$	10,815
Total debt	$	28,646	$	1,355,383	$	1,384,029	$	11,221


(1)	Reflects contractual, unhedged rates. See Note 9, Derivatives for hedge rates.

As of December 31, 2017, debt consisted of the following (in thousands, except percentages):



	Carrying Values, net of debt discount						Unused Borrowing Capacity		Interest Rate		Maturity Date
	Current		Long Term		Total
Recourse debt:
Bank line of credit	$	—	$	247,000	$	247,000	$	406	4.58% - 4.87%		April 2018
Total recourse debt	$	—	$	247,000	$	247,000	$	406

Non-recourse debt:
Senior	3,561		804,894		808,455		12,758		3.63% - 4.69%		September 2020 - October 2024
Subordinated	4,301		107,187		111,488		27		6.36% - 7.13%		September 2020 - October 2024
Securitization Class A	3,534		82,203		85,737		—		4.40	%	July 2024
Securitization Class B	440		9,644		10,084		—		5.38	%	July 2024
SREC Loans	9,693		22,488		32,181		—		7.28	%	July 2021
Total non-recourse debt	$	21,529	$	1,026,416	$	1,047,945	$	12,785
Total debt	$	21,529	$	1,273,416	$	1,294,945	$	13,191