Stockholders' Equity (Details 1) (USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	Aug. 30, 2013	Aug. 31, 2012	Aug. 30, 2013		Aug. 31, 2012
Gross unrealized gains, available-for-sale securities [Abstract]
Beginning balance, unrealized gains on available-for-sale securities			$ 14,699
Gross unrealized gains on available for sale securities, increase or decrease			(4,905)
Gross unrealized gains on available for sale securities, reclassification adjustments			(3,386)
Ending balance, unrealized gains on available-for-sale securities	6,408		6,408
Gross unrealized losses, available-for-sale securities [Abstract]
Beginning balance, unrealized losses on available-for-sale securities			(260)
Gross unrealized losses on available for sale securities increase or decrease			(7,405)
Gross unrealized losses on available for sale securities, reclassification adjustments			1,060
Ending balance, unrealized losses on available-for-sale securities	(6,605)		(6,605)
Net unrealized gains on available-for-sale securities [Abstract]
Beginning Balance, net unrealized gains on available-for-sale securities			14,439
Net unrealized gains on available for sale securities, increase or decrease	(7,757)	5,688	(12,310)		11,255
Net unrealized gains on available for sale securities, reclassification adjustments	46	(897)	(2,326)		(1,807)
Ending Balance, net unrealized gains on available-for-sale securities	(197)		(197)
Net unrealized gains on derivatives designated as hedging instuments [Abstract]
Beginning balance, net unrealized gains on derivative instruments designated as hedging instruments			6,604
Net unrealized gains on derivative instruments designated as hedging instruments, increase or decrease	(2,947)	(2,621)	29,713		20,151
Net unrealized gains on derivative instruments designated as hedging instruments, reclassification adjustments	(10,487)	(7,692)	(32,880)		(28,701)
Ending balance, net unrealized gains on derivative instruments designated as hedging instruments	3,437		3,437
Cumulative foreign currency translation adjustments [Abstract]
Beginning balance, cumulative foreign currency translation adjustments			9,669
Cumulative foreign currency translation adjustment, increase or decrease	6,651	7,417	57		(8,337)
Cumulative foreign currency translation adjustment, reclassification adjustments			0
Ending balance, cumulative foreign currency translation adjustments	9,726		9,726
Accumulated other comprehensive income totals [Abstract]
Beginning balance, total accumulated other comprehensive income, net of taxes			30,712	[1]
Accumulated other comprehensive income, increase or decrease			17,460
Accumulated other comprehensive income, reclassification adjustments			(35,206)
Ending balance, total accumulated other comprehensive income, net of taxes	$ 12,966		$ 12,966

[1] The Condensed Consolidated Balance Sheet as of November 30, 2012 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.