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Fair Value Measurements (Activity for Financial Assets Measured at Fair Value Using Level 3 Inputs) (Details) (USD $) In Thousands, unless otherwise specified | 3 Months Ended | 6 Months Ended
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May 31, 2014 | May 31, 2013 | May 31, 2014 | May 31, 2013
Fair Value, Assets Measured on Recurring Basis, Level 3 Reconciliation [Roll Forward] |  |  |  |
Balance, beginning of period | $ 25,110 | $ 26,442 | $ 24,761 | $ 26,321
Redemptions and sales | 0 | 0 | 0 | (25)
Unrealized (losses) gains included in accumulated other comprehensive loss | (54) | 58 | 295 | 204
Balance, end of period | $ 25,056 | $ 26,500 | $ 25,056 | $ 26,500

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- Definition Amount of gain (loss) recognized in other comprehensive income (loss) for financial instrument classified as an asset measured using unobservable inputs that reflect the entity's own assumption about the assumptions market participants would use in pricing. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(1a) -URI http://asc.fasb.org/extlink&oid=25499696&loc=d3e19207-110258 + Details
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- Definition Amount of purchases, (sales), issuances and (settlements) of financial instrument classified as an asset measured using unobservable inputs that reflect the entity's own assumption about the assumptions market participants would use in pricing. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph c -URI http://asc.fasb.org/extlink&oid=25499696&loc=d3e19207-110258 + Details
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- Definition Fair value of financial instrument classified as an asset measured using unobservable inputs that reflect the entity's own assumption about the assumptions market participants would use in pricing. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=25499696&loc=d3e19207-110258 + Details
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