Commitments and Contingencies (Tables)

6 Months Ended

May 31, 2016

Total Minimum Lease and Easement Commitments under Land use Agreements

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

(in thousands)	2016 (remaining six months)		2017		2018		2019		2020		Thereafter		Total
Land use payments	$	611	$	1,293	$	1,329	$	1,686	$	1,742	$	58,299	$	64,960

Summary of Asset Retirement Obligations

The following table summarizes ARO activity for each of the three and six months ended May 31, 2016 and June 28, 2015:

	Three Months Ended					Six Months Ended
	May 31,			June 28,		May 31,			June 28,
(in thousands)	2016			2015		2016			2015
Balance at the beginning of the period	$	10,658		$	903	$	9,992		$	—
ARO assumed in acquisition		981			2,130		1,528			2,130
Accretion expense		127			—		246			—
Liabilities incurred during the period		—			3,667		—			4,570
Adjustments to ARO during the period		(224	)		—		(224	)		—
Balance at the end of the period	$	11,542		$	6,700	$	11,542		$	6,700

Solar Energy System Performance Warranty

Summary of Accrued Warranty Activity

The following table summarizes accrued solar energy systems performance warranty activity for the each of three and six months ended May 31, 2016 and June 28, 2015:

	Three Months Ended						Six Months Ended
	May 31,			June 28,			May 31,			June 28,
(in thousands)	2016			2015			2016			2015
Balance at the beginning of the period	$	226		$	487		$	237		$	525
Settlements during the period		(80	)		(58	)		(156	)		(120	)
Adjustments during the period		(6	)		(9	)		59			15
Balance at the end of the period	$	140		$	420		$	140		$	420