The aggregate expense charged against earnings to allocate the cost of intangible assets (nonphysical assets not used in production) in a systematic and rational manner to the periods expected to benefit from such assets. As a noncash expense, this element is added back to net income when calculating cash provided by or used in operations using the indirect method.

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Intangible Assets And Goodwill (Narrative) (Details) (USD $)	3 Months Ended	12 Months Ended
	Nov. 30, 2014 Segments	Nov. 30, 2014	Nov. 30, 2013	Nov. 30, 2012
Finite-Lived Intangible Assets [Line Items]
Goodwill	$ 232,836,000us-gaap_Goodwill	$ 232,836,000us-gaap_Goodwill	$ 224,286,000us-gaap_Goodwill	$ 226,110,000us-gaap_Goodwill
Intangible assets, amortization expense		3,700,000us-gaap_AmortizationOfIntangibleAssets	2,100,000us-gaap_AmortizationOfIntangibleAssets	1,500,000us-gaap_AmortizationOfIntangibleAssets
Number of reportable segments	3us-gaap_NumberOfReportableSegments
Goodwill impairment loss		0us-gaap_GoodwillImpairmentLoss	0us-gaap_GoodwillImpairmentLoss	0us-gaap_GoodwillImpairmentLoss
OpenEdge [Member]
Finite-Lived Intangible Assets [Line Items]
Goodwill	212,200,000	212,200,000
Data Connectivity [Member]
Finite-Lived Intangible Assets [Line Items]
Goodwill	19,000,000	19,000,000
Application Development and Deployment [Member]
Finite-Lived Intangible Assets [Line Items]
Goodwill	$ 1,500,000	$ 1,500,000