Property and Equipment (Details) - USD ($) $ in Thousands		3 Months Ended			12 Months Ended
	Apr. 03, 2019	Nov. 30, 2019	Nov. 30, 2018		Nov. 30, 2019	Nov. 30, 2018		Nov. 30, 2017
Property, Plant and Equipment [Line Items]
Property and equipment, gross		$ 89,148	$ 88,322		$ 89,148	$ 88,322
Less accumulated depreciation and amortization		(59,383)	(57,608)		(59,383)	(57,608)
Property and equipment, net		29,765	30,714	[1]	29,765	30,714	[1]
Depreciation and amortization expense					7,600	6,900		$ 7,500
Loss on assets held for sale		1,400	5,100		0	5,147	[2],[3]	0	[2],[3]
Proceeds from sale of property, plant and equipment, net					6,146	0	[2]	$ 1,557	[2]
Disposal Group, Disposed of by Sale, Not Discontinued Operations
Property, Plant and Equipment [Line Items]
Proceeds from sale of property, plant and equipment, net	$ 5,800
Gain (loss) on disposal	$ 100				100
Computer equipment and software
Property, Plant and Equipment [Line Items]
Property and equipment, gross		47,699	47,266		47,699	47,266
Land, buildings and leasehold improvements
Property, Plant and Equipment [Line Items]
Property and equipment, gross		34,083	34,676		34,083	34,676
Furniture and fixtures
Property, Plant and Equipment [Line Items]
Property and equipment, gross		7,090	6,104		7,090	6,104
Capitalized software development costs
Property, Plant and Equipment [Line Items]
Property and equipment, gross		$ 276	$ 276		$ 276	$ 276

[1] The Company adopted the accounting standard related to revenue recognition ("ASC 606") effective December 1, 2018 using the full retrospective method. See Note 1. Nature of Business and Summary of Significant Accounting Policies for further information.

[2] The Company adopted the accounting standard related to revenue recognition ("ASC 606") effective December 1, 2018 using the full retrospective method. See Note 1. Nature of Business and Summary of Significant Accounting Policies for further information.

[3] The Company adopted the accounting standard related to revenue recognition ("ASC 606") effective December 1, 2018 using the full retrospective method. See Note 1. Nature of Business and Summary of Significant Accounting Policies for further information.