Benefit Plans - Summary of Fair Value of Plan Assets (Detail) - U.S Pension Plan [Member] - USD ($) $ in Thousands	Nov. 30, 2015	Nov. 30, 2014	Nov. 30, 2013
Defined Benefit Plan Disclosure [Line Items]
Plan assets	$ 47,031	$ 51,085	$ 47,416
Cash and cash equivalents [Member]
Defined Benefit Plan Disclosure [Line Items]
Plan assets	487	373
Listed equity securities [Member]
Defined Benefit Plan Disclosure [Line Items]
Plan assets	29,156	31,327
Corporate debt securities [Member]
Defined Benefit Plan Disclosure [Line Items]
Plan assets	6,598	6,482
Foreign corporate debt securities [Member]
Defined Benefit Plan Disclosure [Line Items]
Plan assets	2,140	1,321
U.S. government securities [Member]
Defined Benefit Plan Disclosure [Line Items]
Plan assets	3,975	5,929
Agency mortgage-backed securities [Member]
Defined Benefit Plan Disclosure [Line Items]
Plan assets	3,504	3,883
Commercial mortgage-backed securities [Member]
Defined Benefit Plan Disclosure [Line Items]
Plan assets	425	1,080
Asset-backed securities [Member]
Defined Benefit Plan Disclosure [Line Items]
Plan assets	746	690
Level 1 [Member]
Defined Benefit Plan Disclosure [Line Items]
Plan assets	33,618	37,629
Level 1 [Member] | Cash and cash equivalents [Member]
Defined Benefit Plan Disclosure [Line Items]
Plan assets	487	373
Level 1 [Member] | Listed equity securities [Member]
Defined Benefit Plan Disclosure [Line Items]
Plan assets	29,156	31,327
Level 1 [Member] | U.S. government securities [Member]
Defined Benefit Plan Disclosure [Line Items]
Plan assets	3,975	5,929
Level 2 [Member]
Defined Benefit Plan Disclosure [Line Items]
Plan assets	13,413	13,456
Level 2 [Member] | Corporate debt securities [Member]
Defined Benefit Plan Disclosure [Line Items]
Plan assets	6,598	6,482
Level 2 [Member] | Foreign corporate debt securities [Member]
Defined Benefit Plan Disclosure [Line Items]
Plan assets	2,140	1,321
Level 2 [Member] | Agency mortgage-backed securities [Member]
Defined Benefit Plan Disclosure [Line Items]
Plan assets	3,504	3,883
Level 2 [Member] | Commercial mortgage-backed securities [Member]
Defined Benefit Plan Disclosure [Line Items]
Plan assets	425	1,080
Level 2 [Member] | Asset-backed securities [Member]
Defined Benefit Plan Disclosure [Line Items]
Plan assets	$ 746	$ 690