Arrangements with Off-Balance Sheet Risk - Narrative (Details)	12 Months Ended
	Nov. 30, 2015 USD ($)
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items]
Outstanding surety bonds	$ 45,500,000
Guarantee obligations, up to	$ 120,000,000.0
Standard warranty period	1 year
Senior Credit Facility [Member]
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items]
Outstanding commercial letters of credit	$ 44,100,000