Benefit Plans - Weighted Average Assumptions Used to Determine Actuarial Present Value of Projected Benefit Obligation (Detail) - U.S Pension Plan [Member]	12 Months Ended
	Nov. 30, 2016	Nov. 30, 2015	Nov. 30, 2014
Defined Benefit Plan Disclosure [Line Items]
Discount rate used to determine benefit obligation	3.90%	4.10%	4.30%
Discount rate	4.10%	4.30%	5.10%
Expected long-term rate of return on plan assets	6.25%	6.75%	6.75%