Benefit Plans - Summary of Fair Value of Plan Assets (Detail) - U.S Pension Plan [Member] - USD ($) $ in Thousands	Nov. 30, 2016	Nov. 30, 2015	Nov. 30, 2014
Defined Benefit Plan Disclosure [Line Items]
Plan assets	$ 49,992	$ 47,031	$ 51,085
Cash and cash equivalents [Member]
Defined Benefit Plan Disclosure [Line Items]
Plan assets	1,135	487
Listed equity securities [Member]
Defined Benefit Plan Disclosure [Line Items]
Plan assets	32,342	29,156
Corporate debt securities [Member]
Defined Benefit Plan Disclosure [Line Items]
Plan assets	4,906	6,598
Foreign corporate debt securities [Member]
Defined Benefit Plan Disclosure [Line Items]
Plan assets	1,835	2,140
U.S. government securities [Member]
Defined Benefit Plan Disclosure [Line Items]
Plan assets	5,370	3,975
Agency mortgage-backed securities [Member]
Defined Benefit Plan Disclosure [Line Items]
Plan assets	3,330	3,504
Commercial mortgage-backed securities [Member]
Defined Benefit Plan Disclosure [Line Items]
Plan assets	591	425
Asset-backed securities [Member]
Defined Benefit Plan Disclosure [Line Items]
Plan assets	483	746
Level 1 [Member]
Defined Benefit Plan Disclosure [Line Items]
Plan assets	38,847	33,618
Level 1 [Member] | Cash and cash equivalents [Member]
Defined Benefit Plan Disclosure [Line Items]
Plan assets	1,135	487
Level 1 [Member] | Listed equity securities [Member]
Defined Benefit Plan Disclosure [Line Items]
Plan assets	32,342	29,156
Level 1 [Member] | U.S. government securities [Member]
Defined Benefit Plan Disclosure [Line Items]
Plan assets	5,370	3,975
Level 2 [Member]
Defined Benefit Plan Disclosure [Line Items]
Plan assets	11,145	13,413
Level 2 [Member] | Corporate debt securities [Member]
Defined Benefit Plan Disclosure [Line Items]
Plan assets	4,906	6,598
Level 2 [Member] | Foreign corporate debt securities [Member]
Defined Benefit Plan Disclosure [Line Items]
Plan assets	1,835	2,140
Level 2 [Member] | Agency mortgage-backed securities [Member]
Defined Benefit Plan Disclosure [Line Items]
Plan assets	3,330	3,504
Level 2 [Member] | Commercial mortgage-backed securities [Member]
Defined Benefit Plan Disclosure [Line Items]
Plan assets	591	425
Level 2 [Member] | Asset-backed securities [Member]
Defined Benefit Plan Disclosure [Line Items]
Plan assets	$ 483	$ 746