| **Condensed Consolidated Statements of Stockholders' Equity (Unaudited) (USD $)In Thousands, unless otherwise specified** | Total                                                                                     | Common Stock [Member]                                                                                                                                     | Retained Earnings [Member]                                                                                                                                     | Accumulated Other Comprehensive Income (Loss) [Member]                                                                                                                            |
|---------------------------------------------------------------------------------------------------------------------------|-------------------------------------------------------------------------------------------|-----------------------------------------------------------------------------------------------------------------------------------------------------------|----------------------------------------------------------------------------------------------------------------------------------------------------------------|-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| Stockholders' Equity, beginning balance at Oct. 31, 2013                                                                  | $ 1,188,596us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest | $ 561,644us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest/ us-gaap_StatementEquityComponentsAxis= us-gaap_CommonStockMember | $ 627,236us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest/ us-gaap_StatementEquityComponentsAxis= us-gaap_RetainedEarningsMember | $ (284)us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest/ us-gaap_StatementEquityComponentsAxis= us-gaap_AccumulatedOtherComprehensiveIncomeMember   |
| Common Stock, Shares, Outstanding, Beginning Balance at Oct. 31, 2013                                                     |                                                                                      | 76,099us-gaap_CommonStockSharesOutstanding/ us-gaap_StatementEquityComponentsAxis= us-gaap_CommonStockMember                                              |                                                                                                                                                           |                                                                                                                                                                              |
| **Increase (Decrease) in Stockholders' Equity [Roll Forward]**                                                            |                                                                                      |                                                                                                                                                      |                                                                                                                                                           |                                                                                                                                                                              |
| Net income                                                                                                                | 97,572us-gaap_NetIncomeLoss                                                               |                                                                                                                                                      | 97,572us-gaap_NetIncomeLoss/ us-gaap_StatementEquityComponentsAxis= us-gaap_RetainedEarningsMember                                                             |                                                                                                                                                                              |
| Other Comprehensive Income (Loss)                                                                                         | 311us-gaap_OtherComprehensiveIncomeLossNetOfTax                                           |                                                                                                                                                      |                                                                                                                                                           | 311us-gaap_OtherComprehensiveIncomeLossNetOfTax/ us-gaap_StatementEquityComponentsAxis= us-gaap_AccumulatedOtherComprehensiveIncomeMember                                         |
| Common Stock Issued                                                                                                       | 54,349us-gaap_StockIssuedDuringPeriodValueNewIssues                                       | 54,349us-gaap_StockIssuedDuringPeriodValueNewIssues/ us-gaap_StatementEquityComponentsAxis= us-gaap_CommonStockMember                                     |                                                                                                                                                           |                                                                                                                                                                              |
| Common Stock Issued (Shares)                                                                                              |                                                                                      | 1,823us-gaap_StockIssuedDuringPeriodSharesNewIssues/ us-gaap_StatementEquityComponentsAxis= us-gaap_CommonStockMember                                     |                                                                                                                                                           |                                                                                                                                                                              |
| Tax Benefit from Dividends Paid on ESOP Shares                                                                            | 29pny_TaxBenefitFromDividendsPaidOnESOPShares                                             |                                                                                                                                                      | 29pny_TaxBenefitFromDividendsPaidOnESOPShares/ us-gaap_StatementEquityComponentsAxis= us-gaap_RetainedEarningsMember                                           |                                                                                                                                                                              |
| Dividends Declared                                                                                                        | (24,113)us-gaap_DividendsCommonStockCash                                                  |                                                                                                                                                      | (24,113)us-gaap_DividendsCommonStockCash/ us-gaap_StatementEquityComponentsAxis= us-gaap_RetainedEarningsMember                                                |                                                                                                                                                                              |
| Stockholders' Equity, ending balance at Jan. 31, 2014                                                                     | 1,316,744us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest   | 615,993us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest/ us-gaap_StatementEquityComponentsAxis= us-gaap_CommonStockMember   | 700,724us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest/ us-gaap_StatementEquityComponentsAxis= us-gaap_RetainedEarningsMember   | 27us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest/ us-gaap_StatementEquityComponentsAxis= us-gaap_AccumulatedOtherComprehensiveIncomeMember        |
| Common Stock, Shares, Outstanding, Ending Balance at Jan. 31, 2014                                                        |                                                                                      | 77,922us-gaap_CommonStockSharesOutstanding/ us-gaap_StatementEquityComponentsAxis= us-gaap_CommonStockMember                                              |                                                                                                                                                           |                                                                                                                                                                              |
| Stockholders' Equity, beginning balance at Oct. 31, 2014                                                                  | 1,308,602us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest   | 636,835us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest/ us-gaap_StatementEquityComponentsAxis= us-gaap_CommonStockMember   | 672,004us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest/ us-gaap_StatementEquityComponentsAxis= us-gaap_RetainedEarningsMember   | (237)us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest/ us-gaap_StatementEquityComponentsAxis= us-gaap_AccumulatedOtherComprehensiveIncomeMember     |
| Common Stock, Shares, Outstanding, Beginning Balance at Oct. 31, 2014                                                     | 78,531us-gaap_CommonStockSharesOutstanding                                                | 78,531us-gaap_CommonStockSharesOutstanding/ us-gaap_StatementEquityComponentsAxis= us-gaap_CommonStockMember                                              |                                                                                                                                                           |                                                                                                                                                                              |
| **Increase (Decrease) in Stockholders' Equity [Roll Forward]**                                                            |                                                                                      |                                                                                                                                                      |                                                                                                                                                           |                                                                                                                                                                              |
| Net income                                                                                                                | 92,978us-gaap_NetIncomeLoss                                                               |                                                                                                                                                      | 92,978us-gaap_NetIncomeLoss/ us-gaap_StatementEquityComponentsAxis= us-gaap_RetainedEarningsMember                                                             |                                                                                                                                                                              |
| Other Comprehensive Income (Loss)                                                                                         | (827)us-gaap_OtherComprehensiveIncomeLossNetOfTax                                         |                                                                                                                                                      |                                                                                                                                                           | (827)us-gaap_OtherComprehensiveIncomeLossNetOfTax/ us-gaap_StatementEquityComponentsAxis= us-gaap_AccumulatedOtherComprehensiveIncomeMember                                       |
| Common Stock Issued                                                                                                       | 8,995us-gaap_StockIssuedDuringPeriodValueNewIssues                                        | 8,995us-gaap_StockIssuedDuringPeriodValueNewIssues/ us-gaap_StatementEquityComponentsAxis= us-gaap_CommonStockMember                                      |                                                                                                                                                           |                                                                                                                                                                              |
| Common Stock Issued (Shares)                                                                                              |                                                                                      | 236us-gaap_StockIssuedDuringPeriodSharesNewIssues/ us-gaap_StatementEquityComponentsAxis= us-gaap_CommonStockMember                                       |                                                                                                                                                           |                                                                                                                                                                              |
| Expenses from Issuance of Common Stock                                                                                    | (137)pny_CostsOfStockIssuance                                                             | (137)pny_CostsOfStockIssuance/ us-gaap_StatementEquityComponentsAxis= us-gaap_CommonStockMember                                                           |                                                                                                                                                           |                                                                                                                                                                              |
| Tax Benefit from Dividends Paid on ESOP Shares                                                                            | 32pny_TaxBenefitFromDividendsPaidOnESOPShares                                             |                                                                                                                                                      | 32pny_TaxBenefitFromDividendsPaidOnESOPShares/ us-gaap_StatementEquityComponentsAxis= us-gaap_RetainedEarningsMember                                           |                                                                                                                                                                              |
| Dividends Declared                                                                                                        | (25,168)us-gaap_DividendsCommonStockCash                                                  |                                                                                                                                                      | (25,168)us-gaap_DividendsCommonStockCash/ us-gaap_StatementEquityComponentsAxis= us-gaap_RetainedEarningsMember                                                |                                                                                                                                                                              |
| Stockholders' Equity, ending balance at Jan. 31, 2015                                                                     | $ 1,384,475us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest | $ 645,693us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest/ us-gaap_StatementEquityComponentsAxis= us-gaap_CommonStockMember | $ 739,846us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest/ us-gaap_StatementEquityComponentsAxis= us-gaap_RetainedEarningsMember | $ (1,064)us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest/ us-gaap_StatementEquityComponentsAxis= us-gaap_AccumulatedOtherComprehensiveIncomeMember |
| Common Stock, Shares, Outstanding, Ending Balance at Jan. 31, 2015                                                        | 78,767us-gaap_CommonStockSharesOutstanding                                                | 78,767us-gaap_CommonStockSharesOutstanding/ us-gaap_StatementEquityComponentsAxis= us-gaap_CommonStockMember                                              |                                                                                                                                                           |                                                                                                                                                                              |

| X                                                                                                                                                                                                                                                                            |
|------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
The cost incurred directly with the issuance of an equity security.
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| - Definition
The tax benefit resulting from dividends paid on stock held by an employee stock ownership plan.
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|-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
Number of shares of common stock outstanding. Common stock represent the ownership interest in a corporation.
+ References
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|--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
Amount of paid and unpaid common stock dividends declared with the form of settlement in cash.
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|-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
The portion of profit or loss for the period, net of income taxes, which is attributable to the parent.
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| - Definition
Amount after tax and reclassification adjustments of other comprehensive income (loss).
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|---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
Amount of stockholders' equity (deficit), net of receivables from officers, directors, owners, and affiliates of the entity, attributable to both the parent and noncontrolling interests. Amount excludes temporary equity. Alternate caption for the concept is permanent equity.
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|--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
Number of new stock issued during the period.
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|--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
Equity impact of the value of new stock issued during the period. Includes shares issued in an initial public offering or a secondary public offering.
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