Business Combinations - Kern Acquisition Additional Information (Details) - USD ($) $ in Thousands									3 Months Ended								11 Months Ended		12 Months Ended
	Sep. 28, 2017	Jun. 09, 2017	Feb. 24, 2017	Dec. 14, 2016	Nov. 30, 2016	Sep. 09, 2016	Jan. 27, 2016	Jan. 22, 2016	Nov. 30, 2017	Aug. 31, 2017	May 31, 2017	Feb. 28, 2017	Nov. 30, 2016	Aug. 31, 2016	May 31, 2016	Feb. 29, 2016	Nov. 30, 2015	[1]	Nov. 30, 2017		Nov. 30, 2016
Business Acquisition [Line Items]
Operating revenues									$ 15,770	$ 27,744	$ 16,678	$ 9,897	$ 14,463	$ 26,116	$ 13,517	$ 7,102	$ 10,660		$ 70,089	[1]	$ 61,198	[1]
Kern Acquisition
Business Acquisition [Line Items]
Payment to acquire business							$ 31,700
Net assets acquired		$ 3,200	$ 6,000		$ 8,400	$ 9,200	$ 4,900						$ 8,400								$ 8,400
Purchase price payments								$ 29,200
Business combination capital contribution received from tax equity investor	$ 4,000	$ 6,300	$ 8,200	$ 6,700	$ 1,300	$ 1,800		$ 900
Kern Phase 2(b)
Business Acquisition [Line Items]
Operating revenues																			700
Increase in operating income (loss)																			$ 200

[1] The Partnership has related-party activities for transactions made with the Sponsors. Related party transactions recorded within “Operating revenues” in the consolidated statement of operations were $5.2 million, $5.2 million and $2.3 million in fiscal 2017, 2016 and 2015, respectively. Related party transactions recorded within “Operating costs and expenses” in the consolidated statement of operations were $8.4 million, $7.0 million and $1.4 million in fiscal 2017, 2016 and 2015, respectively. Related party transactions recorded within “Other expense (income)” in the consolidated statement of operations were $0.3 million in fiscal 2017, and zero in both fiscal 2016 and 2015.