Commitments and Contingencies (Tables)

3 Months Ended

Feb. 29, 2016

Total Minimum Lease and Easement Commitments under Land use Agreements

The total minimum lease and easement commitments at February 29, 2016 under these land use agreements are as follows:

(in thousands)	2016 (remaining nine months)		2017		2018		2019		2020		Thereafter		Total
Land use payments	$	717	$	1,131	$	1,167	$	1,524	$	1,580	$	54,305	$	60,424

Summary of Asset Retirement Obligations

The following table summarizes ARO activity for the three months ended February 29, 2016 and March 29, 2015, respectively:

	Three Months Ended
	February 29,		March 29,
(in thousands)	2016		2015
Balance at the beginning of the period	$	9,992	$	—
ARO assumed in acquisition		547		—
Accretion expense		119		—
Liabilities incurred during the period		—		903
Balance at the end of the period	$	10,658	$	903

Solar Energy System Performance Warranty

Summary of Accrued Warranty Activity

The following table summarizes accrued solar energy systems performance warranty activity for the three months ended February 29, 2016 and March 29, 2015, respectively:

	Three Months Ended
	February 29,			March 29,
(in thousands)	2016			2015
Balance at the beginning of the period	$	237		$	525
Settlements during the period		(76	)		(62	)
Adjustments during the period		65			24
Balance at the end of the period	$	226		$	487