Income Taxes (Provisions For Income Taxes) (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
Nov. 30, 2014	Nov. 30, 2013	Nov. 30, 2012
Current
Federal	$ 7,796us-gaap_CurrentFederalTaxExpenseBenefit	$ 7,639us-gaap_CurrentFederalTaxExpenseBenefit	$ 11,171us-gaap_CurrentFederalTaxExpenseBenefit
State	765	1,583	1,270
Foreign	4,751us-gaap_CurrentForeignTaxExpenseBenefit	2,165us-gaap_CurrentForeignTaxExpenseBenefit	5,970us-gaap_CurrentForeignTaxExpenseBenefit
Total current	13,312us-gaap_CurrentIncomeTaxExpenseBenefit	11,387us-gaap_CurrentIncomeTaxExpenseBenefit	18,411us-gaap_CurrentIncomeTaxExpenseBenefit
Deferred
Federal	14,783	9,622	5,257
State	730	329	55
Foreign	(479)	1,668	(692)
Total deferred	15,034us-gaap_DeferredIncomeTaxExpenseBenefit	11,619us-gaap_DeferredIncomeTaxExpenseBenefit	4,620us-gaap_DeferredIncomeTaxExpenseBenefit
Total	$ 28,346us-gaap_IncomeTaxExpenseBenefit	$ 23,006us-gaap_IncomeTaxExpenseBenefit	$ 23,031us-gaap_IncomeTaxExpenseBenefit

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