Stockholders' Equity (Details 1) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Feb. 28, 2014		Mar. 01, 2013
Gross unrealized gains, available-for-sale securities [Abstract]
Beginning balance, unrealized gains on available-for-sale securities	$ 10,178
Gross unrealized gains on available for sale securities, increase or decrease	1,271
Gross unrealized gains on available for sale securities, reclassification adjustments	(670)
Ending balance, unrealized gains on available-for-sale securities	10,779
Gross unrealized losses, available-for-sale securities [Abstract]
Beginning balance, unrealized losses on available-for-sale securities	(937)
Gross unrealized losses on available for sale securities increase or decrease	239
Gross unrealized losses on available for sale securities, reclassification adjustments	33
Ending balance, unrealized losses on available-for-sale securities	(665)
Net unrealized gains on available-for-sale securities [Abstract]
Beginning Balance, net unrealized gains on available-for-sale securities	9,241
Net unrealized gains on available for sale securities, increase or decrease	1,510		702
Net unrealized gains on available for sale securities, reclassification adjustments	(637)		(1,584)
Ending Balance, net unrealized gains on available-for-sale securities	10,114
Net unrealized gains on derivatives designated as hedging instuments [Abstract]
Beginning balance, net unrealized gains on derivative instruments designated as hedging instruments	5,367
Net unrealized gains on derivative instruments designated as hedging instruments, increase or decrease	(29)		21,776
Net unrealized gains on derivative instruments designated as hedging instruments, reclassification adjustments	(2,798)		(7,094)
Ending balance, net unrealized gains on derivative instruments designated as hedging instruments	2,540
Cumulative foreign currency translation adjustments [Abstract]
Beginning balance, cumulative foreign currency translation adjustments	31,495
Cumulative foreign currency translation adjustment, increase or decrease	12,443		(4,402)
Cumulative foreign currency translation adjustment, reclassification adjustments	0
Ending balance, cumulative foreign currency translation adjustments	43,938
Accumulated other comprehensive income totals [Abstract]
Beginning balance, total accumulated other comprehensive income, net of taxes	46,103	[1]
Accumulated other comprehensive income, increase or decrease	13,924
Accumulated other comprehensive income, reclassification adjustments	(3,435)
Ending balance, total accumulated other comprehensive income, net of taxes	$ 56,592

[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.