Business Combinations - Additional Information (Details) - USD ($) $ in Thousands								3 Months Ended		6 Months Ended
		Feb. 24, 2017	Dec. 14, 2016	Nov. 30, 2016	Sep. 09, 2016	Jan. 27, 2016	Jan. 22, 2016	May 31, 2017	May 31, 2016	May 31, 2017	May 31, 2016
Business Acquisition [Line Items]
Operating revenues	[1]							$ 16,678	$ 13,517	$ 26,575	$ 20,619
Increased operating income from acquisition (less than)								5,716	3,885	4,713	2,626
Kern Acquisition
Business Acquisition [Line Items]
Net assets acquired		$ 6,000		$ 8,400	$ 9,200	$ 4,900
Business combination capital contribution received from tax equity investor		$ 8,200	$ 6,700	$ 1,300	$ 1,800
Kern Acquisition | Maximum
Business Acquisition [Line Items]
Aggregate purchase price						$ 36,700	$ 30,000
Business combination capital contribution received from tax equity investor							900
Future capital contribution from tax equity investor							$ 11,100
Kern Phase 2(b) Assets
Business Acquisition [Line Items]
Operating revenues								$ 200		$ 200
Increased operating income from acquisition (less than)									$ 100		$ 100

[1] The Partnership has related-party activities for transactions made with the Sponsors. Related party transactions recorded within “Operating revenues” in the unaudited condensed consolidated statement of operations were $1.3 million for each of the three months ended May 31, 2017 and May 31, 2016, and $2.6 million for each of the six months ended May 31, 2017 and May 31, 2016. Related party transactions recorded within “Operating costs and expenses” in the unaudited condensed consolidated statement of operations were $2.2 million and $1.7 million for the three months ended May 31, 2017 and May 31, 2016, respectively, and $4.2 million and $3.1 million for the six months ended May 31, 2017 and May 31, 2016, respectively.