Benefit Plans - Components of Net Periodic Pension Costs and Amounts Recognized in Other Comprehensive Income (Detail) - USD ($) $ in Thousands	12 Months Ended
	Nov. 30, 2015	Nov. 30, 2014	Nov. 30, 2013
U.S Pension Plan [Member]
Amounts recognized in other comprehensive income:
Net (gain) loss arising during the period	$ 7,890	$ 3,784	$ (9,419)
Amortization of net loss	0	94	(326)
Settlements during the period	(244)	0	0
Total recognized in Other comprehensive income	7,646	3,878	(9,745)
Net amount recognized in net periodic benefit cost and Other comprehensive income	7,123	3,338	(9,691)
German Pension Plan [Member]
Amounts recognized in other comprehensive income:
Net (gain) loss arising during the period	(39)	4,631	1,033
Amortization of net loss	(325)	(244)	(179)
Total recognized in Other comprehensive income	(364)	4,387	854
Net amount recognized in net periodic benefit cost and Other comprehensive income	$ 484	$ 5,472	$ 2,002