Commitments and Contingencies (Tables)

9 Months Ended

Aug. 31, 2016

Total Minimum Lease and Easement Commitments under Land use Agreements

The total minimum lease and easement commitments at August 31, 2016 under these land use agreements are as follows:

(in thousands)	2016 (remaining three months)		2017		2018		2019		2020		Thereafter		Total
Land use payments	$	334	$	1,293	$	1,329	$	1,686	$	1,742	$	58,193	$	64,577

Summary of Asset Retirement Obligations

The following table summarizes ARO activity for the three and nine months ended August 31, 2016 and three and eight months ended August 31, 2015, respectively:

	Three Months Ended					Nine Months Ended			Eight Months Ended
	August 31,			August 31,		August 31,			August 31,
(in thousands)	2016			2015		2016			2015
Balance at the beginning of the period	$	11,542		$	3,868	$	9,992		$	—
ARO assumed in acquisition		278			2,130		1,806			2,130
Accretion expense		141			—		387			—
Liabilities incurred during the period		—			2,452		—			6,320
Adjustments to ARO during the period		(78	)		—		(302	)		—
Balance at the end of the period	$	11,883		$	8,450	$	11,883		$	8,450

Solar Power System Performance Warranty

Summary of Accrued Warranty Activity

The following table summarizes accrued solar power systems performance warranty activity for the three and nine months ended August 31, 2016, and three and eight months ended August 31, 2015, respectively:

	Three Months Ended						Nine Months Ended			Eight Months Ended
	August 31,			August 31,			August 31,			August 31,
(in thousands)	2016			2015			2016			2015
Balance at the beginning of the period	$	140		$	420		$	237		$	525
Settlements during the period		(51	)		(62	)		(207	)		(149	)
Adjustments during the period		110			(83	)		169			(101	)
Balance at the end of the period	$	199		$	275		$	199		$	275