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Cash, Cash Equivalents and Investments (Fair Value of Debt Securities by Contractual Maturity) (Details) (USD $) In Thousands, unless otherwise specified | Feb. 28, 2015 | Nov. 30, 2014
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Investments and Cash [Abstract] |  |
Due in one year or less | $ 10,994 prgs_FairValueOfDebtSecuritiesMaturitiesWithinOneYear | $ 11,140 prgs_FairValueOfDebtSecuritiesMaturitiesWithinOneYear
Due after one year | 13,135 prgs_FairValueOfDebtSecuritiesMaturitiesAfterOneYear | 9,046 prgs_FairValueOfDebtSecuritiesMaturitiesAfterOneYear
Total | $ 24,129 prgs_FairValueOfDebtSecurities | $ 20,186 prgs_FairValueOfDebtSecurities

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- Definition Fair value of debt securities + References No definition available. + Details
Name: | prgs_FairValueOfDebtSecurities
Namespace Prefix: | prgs_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

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- Definition Fair value of debt securities maturities after one year. + References No definition available. + Details
Name: | prgs_FairValueOfDebtSecuritiesMaturitiesAfterOneYear
Namespace Prefix: | prgs_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

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- Definition Fair value of debt securities maturities within one year. + References No definition available. + Details
Name: | prgs_FairValueOfDebtSecuritiesMaturitiesWithinOneYear
Namespace Prefix: | prgs_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

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- Details
Name: | us-gaap_InvestmentsAndCashAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration