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Cash, Cash Equivalents and Investments (Fair Value of Debt Securities by Contractual Maturity) (Details) - USD ($) $ in Thousands | Nov. 30, 2016 | Nov. 30, 2015
--- | --- | ---
Investments and Cash [Abstract] |  |
Due in one year or less | $ 21,172 | $ 15,945
Due after one year | 21,546 | 12,955
Total | $ 42,718 | $ 28,900

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

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- References No definition available. + Details
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