Carrying amount as of the balance sheet date, which is the cumulative amount paid and (if applicable) the fair value of any noncontrolling interest in the acquiree, adjusted for any amortization recognized prior to the adoption of any changes in generally accepted accounting principles (as applicable) and for any impairment charges, in excess of the fair value of net assets acquired in one or more business combination transactions.

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+ Details

Business Combinations (Schedule of Net Assets Acquired) (Details) (USD $) In Thousands, unless otherwise specified	6 Months Ended			6 Months Ended
	May 31, 2013	Nov. 30, 2012	May 24, 2013 Rollbase [Member]	May 31, 2013 Customer Relationships [Member] Rollbase [Member]	May 31, 2013 Purchased Technology [Member] Rollbase [Member]
Business Acquisition [Line Items]
Cash			$ 50
Acquired intangible assets			7,960
Goodwill	224,440	226,110	4,798
Deferred taxes			(2,921)
Accounts payable and other liabilities			(8)
Net assets acquired			$ 9,879
Acquired intangible assets, Life	4 years 10 months 24 days			1 year	5 years