Property and Equipment (Details) - USD ($) $ in Thousands	Dec. 01, 2017	Dec. 02, 2016	Nov. 27, 2015
Property and Equipment [Line Items]
Total	$ 2,203,494	$ 1,926,212
Less accumulated depreciation and amortization	(1,266,518)	(1,109,948)
Property and equipment, net	936,976	816,264	$ 787,421
Computers And Equipment [Member]
Property and Equipment [Line Items]
Total	1,128,264	1,051,937
Furniture and Fixtures [Member]
Property and Equipment [Line Items]
Total	115,273	94,243
Construction in Progress [Member]
Property and Equipment [Line Items]
Total	5,575	7,648
Leasehold Improvements [Member]
Property and Equipment [Line Items]
Total	120,165	110,414
Land [Member]
Property and Equipment [Line Items]
Total	77,723	77,340
Buildings [Member]
Property and Equipment [Line Items]
Total	490,665	382,364
Building Improvements [Member]
Property and Equipment [Line Items]
Total	$ 265,829	$ 202,266