Property and Equipment (Details) - USD ($) $ in Thousands	12 Months Ended
	Nov. 30, 2017	Nov. 30, 2016	Nov. 30, 2015
Property, Plant and Equipment [Line Items]
Property and equipment, gross	$ 110,983	$ 111,304
Less accumulated depreciation and amortization	(68,722)	(61,199)
Property and equipment, net	42,261	50,105
Depreciation and amortization expense	7,500	8,500	$ 9,400
Computer Equipment and Software [Member]
Property, Plant and Equipment [Line Items]
Property and equipment, gross	50,588	47,978
Land, Buildings and Leasehold Improvements [Member]
Property, Plant and Equipment [Line Items]
Property and equipment, gross	50,229	53,291
Furniture and Fixtures [Member]
Property, Plant and Equipment [Line Items]
Property and equipment, gross	7,211	7,080
Capitalized Software Development Costs [Member]
Property, Plant and Equipment [Line Items]
Property and equipment, gross	$ 2,955	$ 2,955