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Fair Value Measurements Fair Value Measurments (Quantitative Information about Unobservable Inputs) (Details) | 9 Months Ended
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Aug. 31, 2013
Fair Value Inputs, Assets, Quantitative Information [Line Items] |
Liquidity risk premium | 4.00%
Market credit default swap spread | 4.05%
Credit rating of insurer (in credit rating) | AA-
Minimum [Member] |
Fair Value Inputs, Assets, Quantitative Information [Line Items] |
Probability of earning maximum rate until maturity | 0.20%
Probability of principal returned prior to maturity | 75.70%
Probability of default | 4.10%
Recovery rate in default | 50.00%
Maximum [Member] |
Fair Value Inputs, Assets, Quantitative Information [Line Items] |
Probability of earning maximum rate until maturity | 9.90%
Probability of principal returned prior to maturity | 95.10%
Probability of default | 24.10%
Recovery rate in default | 70.00%
Weighted Average [Member] |
Fair Value Inputs, Assets, Quantitative Information [Line Items] |
Probability of earning maximum rate until maturity | 1.70%
Probability of principal returned prior to maturity | 87.00%
Probability of default | 11.30%
Recovery rate in default | 56.50%

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- Definition Fair Value Input Credit Rating of Insurer + References No definition available. + Details
Name: | prgs_FairValueInputCreditRatingOfInsurer
Namespace Prefix: | prgs_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

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- Definition Fair Value Input Liquidity Risk Premium + References No definition available. + Details
Name: | prgs_FairValueInputLiquidityRiskPremium
Namespace Prefix: | prgs_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

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- Definition Fair Value Input Market Credit Default Swap Spread + References No definition available. + Details
Name: | prgs_FairValueInputMarketCreditDefaultSwapSpread
Namespace Prefix: | prgs_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

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- Definition Fair Value Input Probability Of Earning Maximum Rate Until Maturity + References No definition available. + Details
Name: | prgs_FairValueInputProbabilityOfEarningMaximumRateUntilMaturity
Namespace Prefix: | prgs_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

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- Definition Fair Value Input Probability of Principal Returned Prior to Maturity + References No definition available. + Details
Name: | prgs_FairValueInputProbabilityOfPrincipalReturnedPriorToMaturity
Namespace Prefix: | prgs_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

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- Definition Fair Value Input Recovery Rate in Default + References No definition available. + Details
Name: | prgs_FairValueInputRecoveryRateInDefault
Namespace Prefix: | prgs_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

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

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- Definition Percentage of likelihood a loan will not be repaid and instead default, used as an input to measure fair value. + 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 (bbb) -URI http://asc.fasb.org/extlink&oid=7578670&loc=d3e19207-110258 + Details
Name: | us-gaap_FairValueInputsProbabilityOfDefault
Namespace Prefix: | us-gaap_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration