Benefit Plans - Components of Net Periodic Pension Costs and Amounts Recognized in Other Comprehensive Income (Detail) - USD ($) $ in Thousands	12 Months Ended
	Nov. 30, 2016	Nov. 30, 2015	Nov. 30, 2014
U.S Pension Plan [Member]
Amounts recognized in other comprehensive income:
Net losses arising during the period	$ 646	$ 7,890	$ 3,784
Amortization of net gain (loss)	0	0	94
Settlements during the period	0	(244)	0
Total losses recognized in Other comprehensive income	646	7,646	3,878
Net losses recognized in net periodic benefit cost and Other comprehensive income	440	7,123	3,338
German Pension Plan [Member]
Amounts recognized in other comprehensive income:
Net losses arising during the period	1,157	(39)	4,631
Amortization of net gain (loss)	(326)	(325)	(244)
Total losses recognized in Other comprehensive income	831	(364)	4,387
Net losses recognized in net periodic benefit cost and Other comprehensive income	$ 1,686	$ 484	$ 5,472