Non-interest Expenses - Schedule of Components of Noninterest Expense (Detail) - USD ($) $ in Thousands	12 Months Ended
	Nov. 30, 2016	Nov. 30, 2015	Nov. 30, 2014
Other Income and Expenses [Abstract]
Bad debt provision	$ 7,365	$ (396)	$ 55,355
Goodwill impairment	0	0	54,000
Intangible assets amortization and impairment	$ 13,328	$ 13,487	$ 20,569