Commitments and Contingencies (Details Numeric) (USD $)	9 Months Ended					3 Months Ended
	Aug. 29, 2014 buildings	Aug. 30, 2013	Nov. 29, 2013		Aug. 29, 2014 Almaden Tower [Member]	Aug. 29, 2014 East and West Towers [Member]
Property Subject to or Available for Operating Lease [Line Items]
Number of Corporate Headquarter Office Buildings	3
Lease Receivable Purchased	$ 80,439,000		$ 207,239,000	[1]	$ 80,400,000
Option to Purchase Buildings					103,600,000	143,200,000
Residual Value Guarantees					89,400,000
Investment in lease receivable applied to building purchase	126,800,000	0				126,800,000
Capitalized Amount for Building Purchase						144,100,000
Capital Lease Obligations [Abstract]
Capital Lease Obligations Incurred		$ 25,700,000
Sale-leaseback agreement period		24 months

[1] The Condensed Consolidated Balance Sheet as of November 29, 2013 has been derived from the audited Consolidated Financial Statements at that date but does not include all of the information and footnotes required by generally accepted accounting principles for complete financial statements.