Stock-Based Compensation (Activity Stock Options and Stock Awards) (Details) - USD ($) $ in Thousands	12 Months Ended
Nov. 30, 2016	Nov. 30, 2015	Nov. 30, 2014
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total intrinsic value of stock options on date exercised	$ 2,017	$ 3,895	$ 4,078
Total fair value of restricted stock units and deferred stock units on date vested	17,213	18,714	20,093
Deferred Stock Unit [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total fair value of restricted stock units and deferred stock units on date vested	0	93	130
Restricted Stock Units (RSUs) [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total fair value of restricted stock units and deferred stock units on date vested	$ 17,213	$ 18,621	$ 19,963

Fair value of share-based awards for which the grantee gained the right by satisfying service and performance requirements, to receive or retain shares or units, other instruments, or cash.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (d)(2)
-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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Amount of accumulated difference between fair value of underlying shares on dates of exercise and exercise price on options exercised (or share units converted) into shares.

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