Net Income Per Share - Summary of Net Income Per Share (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended								11 Months Ended	12 Months Ended
	Nov. 30, 2016	Aug. 31, 2016	May 31, 2016	Feb. 29, 2016	Nov. 30, 2015	Aug. 31, 2015	Jun. 28, 2015	Mar. 29, 2015	Nov. 30, 2015	Nov. 30, 2016
Basic net income per share:
Net income attributable to Class A shareholders	$ 4,178	$ 7,593	$ 10,022	$ 5,308	$ 17,693	$ 1,033	$ 145	$ (9,166)	$ 18,726	$ 27,101
Basic weighted-average shares	25,680,000	20,015,000	20,011,000	20,007,000	20,002,000	20,002,000	20,000,000		20,002,000	21,420,000
Basic net income per share	$ 0.16	$ 0.38	$ 0.50	$ 0.27	$ 0.88	$ 0.05	$ 0.01		$ 0.94	$ 1.27
Diluted net income per share:
Net income attributable to Class A shareholders	$ 4,178	$ 7,593	$ 10,022	$ 5,308	$ 17,693	$ 1,033	$ 145	$ (9,166)	$ 18,726	$ 27,101
Basic weighted-average shares	25,680,000	20,015,000	20,011,000	20,007,000	20,002,000	20,002,000	20,000,000		20,002,000	21,420,000
Effect of dilutive securities:
Potentially dilutive securities include in the computation of diluted shares									0	0
Diluted weighted-average shares	41,180,000	35,515,000	35,511,000	35,507,000	35,503,000	34,415,000	32,500,000		35,034,000	36,920,000
Diluted net income per share	$ 0.16	$ 0.38	$ 0.50	$ 0.27	$ 0.88	$ 0.05	$ 0.01		$ 0.94	$ 1.27
Class A shares
Basic net income per share:
Net income attributable to Class A shareholders									$ 18,726	$ 27,101
Diluted net income per share:
Net income attributable to Class A shareholders									18,726	27,101
Add: Additional net income attributable to Class A shares due to increased percentage ownership in OpCo, net of tax, from the conversion of Class B shares									14,474	20,466
Total									$ 33,200	$ 47,567
Class B shares
Effect of dilutive securities:
Potentially dilutive securities include in the computation of diluted shares									15,032,000	15,500,000