| **Employee Benefit Plans (Details) (USD $)**                                                | 1 Months Ended                                                                                                                                                                       | 3 Months Ended                                                                                                                                                                             | 6 Months Ended                                                                                                                                                                                         |
|---------------------------------------------------------------------------------------------|--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
||
| **Deferred Compensation Arrangement with Individual, Postretirement Benefits [Line Items]** |                                                                                                                                                                                 |                                                                                                                                                                                       |                                                                                                                                                                                                   |   |   |   |
| Deferred Compensation Liability                                                             |                                                                                                                                                                                 |                                                                                                                                                                                       | $ 5,100,000us-gaap_DeferredCompensationCashbasedArrangementsLiabilityCurrentAndNoncurrent                                                                                                              |   | $ 5,100,000us-gaap_DeferredCompensationCashbasedArrangementsLiabilityCurrentAndNoncurrent |   |
| Pension Plan | MPP Plan                                                                     |                                                                                                                                                                                 |                                                                                                                                                                                       |                                                                                                                                                                                                   |   |   |   |
| **Defined Contribution Plan Disclosure [Line Items]**                                       |                                                                                                                                                                                 |                                                                                                                                                                                       |                                                                                                                                                                                                   |   |   |   |
| Employer Contribution to Plan - defined contribution                                        | 1,400,000us-gaap_PensionContributions/ us-gaap_DefinedContributionPlanNameAxis= pny_MppPlanMember/ us-gaap_DefinedContributionPlanTypeAxis= us-gaap_PensionPlansDefinedBenefitMember |                                                                                                                                                                                       |                                                                                                                                                                                                   |   |   |   |
| Qualified Pension Plan                                                                      |                                                                                                                                                                                 |                                                                                                                                                                                       |                                                                                                                                                                                                   |   |   |   |
| **Defined Benefit Plan, Net Periodic Benefit Cost [Abstract]**                              |                                                                                                                                                                                 |                                                                                                                                                                                       |                                                                                                                                                                                                   |   |   |   |
| Service cost                                                                                |                                                                                                                                                                                 |                                                                                                                                                                                       | 3,050,000us-gaap_DefinedBenefitPlanServiceCost/ us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis= us-gaap_UnitedStatesPensionPlansOfUSEntityDefinedBenefitMember                          | 2,750,000us-gaap_DefinedBenefitPlanServiceCost/ us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis= us-gaap_UnitedStatesPensionPlansOfUSEntityDefinedBenefitMember | 6,100,000us-gaap_DefinedBenefitPlanServiceCost/ us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis= us-gaap_UnitedStatesPensionPlansOfUSEntityDefinedBenefitMember | 5,500,000us-gaap_DefinedBenefitPlanServiceCost/ us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis= us-gaap_UnitedStatesPensionPlansOfUSEntityDefinedBenefitMember |
| Interest cost                                                                               |                                                                                                                                                                                 |                                                                                                                                                                                       | 2,975,000us-gaap_DefinedBenefitPlanInterestCost/ us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis= us-gaap_UnitedStatesPensionPlansOfUSEntityDefinedBenefitMember                         | 2,950,000us-gaap_DefinedBenefitPlanInterestCost/ us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis= us-gaap_UnitedStatesPensionPlansOfUSEntityDefinedBenefitMember | 5,950,000us-gaap_DefinedBenefitPlanInterestCost/ us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis= us-gaap_UnitedStatesPensionPlansOfUSEntityDefinedBenefitMember | 5,900,000us-gaap_DefinedBenefitPlanInterestCost/ us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis= us-gaap_UnitedStatesPensionPlansOfUSEntityDefinedBenefitMember |
| Expected return on plan assets                                                              |                                                                                                                                                                                 |                                                                                                                                                                                       | (5,925,000)us-gaap_DefinedBenefitPlanExpectedReturnOnPlanAssets/ us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis= us-gaap_UnitedStatesPensionPlansOfUSEntityDefinedBenefitMember         | (5,700,000)us-gaap_DefinedBenefitPlanExpectedReturnOnPlanAssets/ us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis= us-gaap_UnitedStatesPensionPlansOfUSEntityDefinedBenefitMember | (11,850,000)us-gaap_DefinedBenefitPlanExpectedReturnOnPlanAssets/ us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis= us-gaap_UnitedStatesPensionPlansOfUSEntityDefinedBenefitMember | (11,400,000)us-gaap_DefinedBenefitPlanExpectedReturnOnPlanAssets/ us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis= us-gaap_UnitedStatesPensionPlansOfUSEntityDefinedBenefitMember |
| Amortization of prior service (credit) cost                                                 |                                                                                                                                                                                 |                                                                                                                                                                                       | (550,000)us-gaap_DefinedBenefitPlanAmortizationOfPriorServiceCostCredit/ us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis= us-gaap_UnitedStatesPensionPlansOfUSEntityDefinedBenefitMember | (550,000)us-gaap_DefinedBenefitPlanAmortizationOfPriorServiceCostCredit/ us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis= us-gaap_UnitedStatesPensionPlansOfUSEntityDefinedBenefitMember | (1,100,000)us-gaap_DefinedBenefitPlanAmortizationOfPriorServiceCostCredit/ us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis= us-gaap_UnitedStatesPensionPlansOfUSEntityDefinedBenefitMember | (1,100,000)us-gaap_DefinedBenefitPlanAmortizationOfPriorServiceCostCredit/ us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis= us-gaap_UnitedStatesPensionPlansOfUSEntityDefinedBenefitMember |
| Amortization of actuarial loss                                                              |                                                                                                                                                                                 |                                                                                                                                                                                       | 2,050,000us-gaap_DefinedBenefitPlanAmortizationOfGainsLosses/ us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis= us-gaap_UnitedStatesPensionPlansOfUSEntityDefinedBenefitMember            | 1,875,000us-gaap_DefinedBenefitPlanAmortizationOfGainsLosses/ us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis= us-gaap_UnitedStatesPensionPlansOfUSEntityDefinedBenefitMember | 4,100,000us-gaap_DefinedBenefitPlanAmortizationOfGainsLosses/ us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis= us-gaap_UnitedStatesPensionPlansOfUSEntityDefinedBenefitMember | 3,750,000us-gaap_DefinedBenefitPlanAmortizationOfGainsLosses/ us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis= us-gaap_UnitedStatesPensionPlansOfUSEntityDefinedBenefitMember |
| Total                                                                                       |                                                                                                                                                                                 |                                                                                                                                                                                       | 1,600,000us-gaap_DefinedBenefitPlanNetPeriodicBenefitCost/ us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis= us-gaap_UnitedStatesPensionPlansOfUSEntityDefinedBenefitMember               | 1,325,000us-gaap_DefinedBenefitPlanNetPeriodicBenefitCost/ us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis= us-gaap_UnitedStatesPensionPlansOfUSEntityDefinedBenefitMember | 3,200,000us-gaap_DefinedBenefitPlanNetPeriodicBenefitCost/ us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis= us-gaap_UnitedStatesPensionPlansOfUSEntityDefinedBenefitMember | 2,650,000us-gaap_DefinedBenefitPlanNetPeriodicBenefitCost/ us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis= us-gaap_UnitedStatesPensionPlansOfUSEntityDefinedBenefitMember |
| Employer contribution amount - defined benefit                                              |                                                                                                                                                                                 | 10,000,000us-gaap_DefinedBenefitPlanContributionsByEmployer/ us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis= us-gaap_UnitedStatesPensionPlansOfUSEntityDefinedBenefitMember |                                                                                                                                                                                                   |   |   |   |
| Non Qualified Pension                                                                       |                                                                                                                                                                                 |                                                                                                                                                                                       |                                                                                                                                                                                                   |   |   |   |
| **Defined Benefit Plan, Net Periodic Benefit Cost [Abstract]**                              |                                                                                                                                                                                 |                                                                                                                                                                                       |                                                                                                                                                                                                   |   |   |   |
| Service cost                                                                                |                                                                                                                                                                                 |                                                                                                                                                                                       | 0us-gaap_DefinedBenefitPlanServiceCost/ us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis= us-gaap_SupplementalEmployeeRetirementPlanDefinedBenefitMember                                  | 0us-gaap_DefinedBenefitPlanServiceCost/ us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis= us-gaap_SupplementalEmployeeRetirementPlanDefinedBenefitMember | 0us-gaap_DefinedBenefitPlanServiceCost/ us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis= us-gaap_SupplementalEmployeeRetirementPlanDefinedBenefitMember | 0us-gaap_DefinedBenefitPlanServiceCost/ us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis= us-gaap_SupplementalEmployeeRetirementPlanDefinedBenefitMember |
| Interest cost                                                                               |                                                                                                                                                                                 |                                                                                                                                                                                       | 52,000us-gaap_DefinedBenefitPlanInterestCost/ us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis= us-gaap_SupplementalEmployeeRetirementPlanDefinedBenefitMember                            | 45,000us-gaap_DefinedBenefitPlanInterestCost/ us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis= us-gaap_SupplementalEmployeeRetirementPlanDefinedBenefitMember | 104,000us-gaap_DefinedBenefitPlanInterestCost/ us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis= us-gaap_SupplementalEmployeeRetirementPlanDefinedBenefitMember | 90,000us-gaap_DefinedBenefitPlanInterestCost/ us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis= us-gaap_SupplementalEmployeeRetirementPlanDefinedBenefitMember |
| Expected return on plan assets                                                              |                                                                                                                                                                                 |                                                                                                                                                                                       | 0us-gaap_DefinedBenefitPlanExpectedReturnOnPlanAssets/ us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis= us-gaap_SupplementalEmployeeRetirementPlanDefinedBenefitMember                   | 0us-gaap_DefinedBenefitPlanExpectedReturnOnPlanAssets/ us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis= us-gaap_SupplementalEmployeeRetirementPlanDefinedBenefitMember | 0us-gaap_DefinedBenefitPlanExpectedReturnOnPlanAssets/ us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis= us-gaap_SupplementalEmployeeRetirementPlanDefinedBenefitMember | 0us-gaap_DefinedBenefitPlanExpectedReturnOnPlanAssets/ us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis= us-gaap_SupplementalEmployeeRetirementPlanDefinedBenefitMember |
| Amortization of prior service (credit) cost                                                 |                                                                                                                                                                                 |                                                                                                                                                                                       | 58,000us-gaap_DefinedBenefitPlanAmortizationOfPriorServiceCostCredit/ us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis= us-gaap_SupplementalEmployeeRetirementPlanDefinedBenefitMember    | 20,000us-gaap_DefinedBenefitPlanAmortizationOfPriorServiceCostCredit/ us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis= us-gaap_SupplementalEmployeeRetirementPlanDefinedBenefitMember | 115,000us-gaap_DefinedBenefitPlanAmortizationOfPriorServiceCostCredit/ us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis= us-gaap_SupplementalEmployeeRetirementPlanDefinedBenefitMember | 41,000us-gaap_DefinedBenefitPlanAmortizationOfPriorServiceCostCredit/ us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis= us-gaap_SupplementalEmployeeRetirementPlanDefinedBenefitMember |
| Amortization of actuarial loss                                                              |                                                                                                                                                                                 |                                                                                                                                                                                       | 21,000us-gaap_DefinedBenefitPlanAmortizationOfGainsLosses/ us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis= us-gaap_SupplementalEmployeeRetirementPlanDefinedBenefitMember               | 12,000us-gaap_DefinedBenefitPlanAmortizationOfGainsLosses/ us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis= us-gaap_SupplementalEmployeeRetirementPlanDefinedBenefitMember | 43,000us-gaap_DefinedBenefitPlanAmortizationOfGainsLosses/ us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis= us-gaap_SupplementalEmployeeRetirementPlanDefinedBenefitMember | 23,000us-gaap_DefinedBenefitPlanAmortizationOfGainsLosses/ us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis= us-gaap_SupplementalEmployeeRetirementPlanDefinedBenefitMember |
| Total                                                                                       |                                                                                                                                                                                 |                                                                                                                                                                                       | 131,000us-gaap_DefinedBenefitPlanNetPeriodicBenefitCost/ us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis= us-gaap_SupplementalEmployeeRetirementPlanDefinedBenefitMember                 | 77,000us-gaap_DefinedBenefitPlanNetPeriodicBenefitCost/ us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis= us-gaap_SupplementalEmployeeRetirementPlanDefinedBenefitMember | 262,000us-gaap_DefinedBenefitPlanNetPeriodicBenefitCost/ us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis= us-gaap_SupplementalEmployeeRetirementPlanDefinedBenefitMember | 154,000us-gaap_DefinedBenefitPlanNetPeriodicBenefitCost/ us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis= us-gaap_SupplementalEmployeeRetirementPlanDefinedBenefitMember |
| Additional contribution amounts                                                             |                                                                                                                                                                                 |                                                                                                                                                                                       |                                                                                                                                                                                                   |   | 282,000us-gaap_DefinedBenefitPlansEstimatedFutureEmployerContributionsInCurrentFiscalYear/ us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis= us-gaap_SupplementalEmployeeRetirementPlanDefinedBenefitMember |   |
| Employer contribution amount - defined benefit                                              |                                                                                                                                                                                 |                                                                                                                                                                                       |                                                                                                                                                                                                   |   | 200,000us-gaap_DefinedBenefitPlanContributionsByEmployer/ us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis= us-gaap_SupplementalEmployeeRetirementPlanDefinedBenefitMember |   |
| Other Postretirement Benefit Plan                                                           |                                                                                                                                                                                 |                                                                                                                                                                                       |                                                                                                                                                                                                   |   |   |   |
| **Defined Benefit Plan, Net Periodic Benefit Cost [Abstract]**                              |                                                                                                                                                                                 |                                                                                                                                                                                       |                                                                                                                                                                                                   |   |   |   |
| Service cost                                                                                |                                                                                                                                                                                 |                                                                                                                                                                                       | 295,000us-gaap_DefinedBenefitPlanServiceCost/ us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis= us-gaap_OtherPostretirementBenefitPlansDefinedBenefitMember                               | 277,000us-gaap_DefinedBenefitPlanServiceCost/ us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis= us-gaap_OtherPostretirementBenefitPlansDefinedBenefitMember | 591,000us-gaap_DefinedBenefitPlanServiceCost/ us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis= us-gaap_OtherPostretirementBenefitPlansDefinedBenefitMember | 554,000us-gaap_DefinedBenefitPlanServiceCost/ us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis= us-gaap_OtherPostretirementBenefitPlansDefinedBenefitMember |
| Interest cost                                                                               |                                                                                                                                                                                 |                                                                                                                                                                                       | 369,000us-gaap_DefinedBenefitPlanInterestCost/ us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis= us-gaap_OtherPostretirementBenefitPlansDefinedBenefitMember                              | 362,000us-gaap_DefinedBenefitPlanInterestCost/ us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis= us-gaap_OtherPostretirementBenefitPlansDefinedBenefitMember | 738,000us-gaap_DefinedBenefitPlanInterestCost/ us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis= us-gaap_OtherPostretirementBenefitPlansDefinedBenefitMember | 724,000us-gaap_DefinedBenefitPlanInterestCost/ us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis= us-gaap_OtherPostretirementBenefitPlansDefinedBenefitMember |
| Expected return on plan assets                                                              |                                                                                                                                                                                 |                                                                                                                                                                                       | (459,000)us-gaap_DefinedBenefitPlanExpectedReturnOnPlanAssets/ us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis= us-gaap_OtherPostretirementBenefitPlansDefinedBenefitMember              | (457,000)us-gaap_DefinedBenefitPlanExpectedReturnOnPlanAssets/ us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis= us-gaap_OtherPostretirementBenefitPlansDefinedBenefitMember | (919,000)us-gaap_DefinedBenefitPlanExpectedReturnOnPlanAssets/ us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis= us-gaap_OtherPostretirementBenefitPlansDefinedBenefitMember | (915,000)us-gaap_DefinedBenefitPlanExpectedReturnOnPlanAssets/ us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis= us-gaap_OtherPostretirementBenefitPlansDefinedBenefitMember |
| Amortization of prior service (credit) cost                                                 |                                                                                                                                                                                 |                                                                                                                                                                                       | 0us-gaap_DefinedBenefitPlanAmortizationOfPriorServiceCostCredit/ us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis= us-gaap_OtherPostretirementBenefitPlansDefinedBenefitMember            | 0us-gaap_DefinedBenefitPlanAmortizationOfPriorServiceCostCredit/ us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis= us-gaap_OtherPostretirementBenefitPlansDefinedBenefitMember | 0us-gaap_DefinedBenefitPlanAmortizationOfPriorServiceCostCredit/ us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis= us-gaap_OtherPostretirementBenefitPlansDefinedBenefitMember | 0us-gaap_DefinedBenefitPlanAmortizationOfPriorServiceCostCredit/ us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis= us-gaap_OtherPostretirementBenefitPlansDefinedBenefitMember |
| Amortization of actuarial loss                                                              |                                                                                                                                                                                 |                                                                                                                                                                                       | 7,000us-gaap_DefinedBenefitPlanAmortizationOfGainsLosses/ us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis= us-gaap_OtherPostretirementBenefitPlansDefinedBenefitMember                   | 0us-gaap_DefinedBenefitPlanAmortizationOfGainsLosses/ us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis= us-gaap_OtherPostretirementBenefitPlansDefinedBenefitMember | 15,000us-gaap_DefinedBenefitPlanAmortizationOfGainsLosses/ us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis= us-gaap_OtherPostretirementBenefitPlansDefinedBenefitMember | 0us-gaap_DefinedBenefitPlanAmortizationOfGainsLosses/ us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis= us-gaap_OtherPostretirementBenefitPlansDefinedBenefitMember |
| Total                                                                                       |                                                                                                                                                                                 |                                                                                                                                                                                       | 212,000us-gaap_DefinedBenefitPlanNetPeriodicBenefitCost/ us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis= us-gaap_OtherPostretirementBenefitPlansDefinedBenefitMember                    | 182,000us-gaap_DefinedBenefitPlanNetPeriodicBenefitCost/ us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis= us-gaap_OtherPostretirementBenefitPlansDefinedBenefitMember | 425,000us-gaap_DefinedBenefitPlanNetPeriodicBenefitCost/ us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis= us-gaap_OtherPostretirementBenefitPlansDefinedBenefitMember | 363,000us-gaap_DefinedBenefitPlanNetPeriodicBenefitCost/ us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis= us-gaap_OtherPostretirementBenefitPlansDefinedBenefitMember |
| Additional contribution amounts                                                             |                                                                                                                                                                                 |                                                                                                                                                                                       |                                                                                                                                                                                                   |   | 1,500,000us-gaap_DefinedBenefitPlansEstimatedFutureEmployerContributionsInCurrentFiscalYear/ us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis= us-gaap_OtherPostretirementBenefitPlansDefinedBenefitMember |   |
| DCR Plan                                                                                    |                                                                                                                                                                                 |                                                                                                                                                                                       |                                                                                                                                                                                                   |   |   |   |
| **Deferred Compensation Arrangement with Individual, Postretirement Benefits [Line Items]** |                                                                                                                                                                                 |                                                                                                                                                                                       |                                                                                                                                                                                                   |   |   |   |
| Employer Contribution to Plan - deferred compensation                                       |                                                                                                                                                                                 |                                                                                                                                                                                       |                                                                                                                                                                                                   |   | 500,000us-gaap_DeferredCompensationArrangementWithIndividualEmployerContribution/ pny_DeferredCompensationPlanNameAxis= pny_DcrPlanMember |   |
| Voluntary Deferral Plan                                                                     |                                                                                                                                                                                 |                                                                                                                                                                                       |                                                                                                                                                                                                   |   |   |   |
| **Deferred Compensation Arrangement with Individual, Postretirement Benefits [Line Items]** |                                                                                                                                                                                 |                                                                                                                                                                                       |                                                                                                                                                                                                   |   |   |   |
| Employer Contribution to Plan - deferred compensation                                       |                                                                                                                                                                                 |                                                                                                                                                                                       |                                                                                                                                                                                                   |   | $ 0us-gaap_DeferredCompensationArrangementWithIndividualEmployerContribution/ pny_DeferredCompensationPlanNameAxis= pny_VoluntaryDeferralPlanMember |   |

| X                                                                                                                                                                                                                                                                                                                                                                                                                                                                    |
|----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
The amount of payment into the fund established for purposes of making future disbursements to the individual in accordance with the terms and understanding of the deferred compensation arrangement.
+ References
No definition available.
+ Details**Name:**us-gaap_DeferredCompensationArrangementWithIndividualEmployerContribution**Namespace Prefix:**us-gaap_**Data Type:**xbrli:monetaryItemType**Balance Type:**debit**Period Type:**duration |
| X                                                                                                                                                                                                                |
|------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Details**Name:**us-gaap_DeferredCompensationArrangementWithIndividualPostretirementBenefitsLineItems**Namespace Prefix:**us-gaap_**Data Type:**xbrli:stringItemType**Balance Type:**na**Period Type:**duration |
| X                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                           |
|-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
Aggregate carrying value as of the balance sheet date of the liabilities for deferred compensation arrangements. Represents currently earned compensation under cash arrangements (such as a profit-sharing plan, rabbi trust, and employee contract--excluding equity-based arrangements) that is not actually paid until a later date.
+ References
No definition available.
+ Details**Name:**us-gaap_DeferredCompensationCashbasedArrangementsLiabilityCurrentAndNoncurrent**Namespace Prefix:**us-gaap_**Data Type:**xbrli:monetaryItemType**Balance Type:**credit**Period Type:**instant |
| X                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        |
|----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
The amount of gains or losses recognized in net periodic benefit cost.
+ References
Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (h)(4) -URI http://asc.fasb.org/extlink&oid=58740216&loc=d3e1928-114920
+ Details**Name:**us-gaap_DefinedBenefitPlanAmortizationOfGainsLosses**Namespace Prefix:**us-gaap_**Data Type:**xbrli:monetaryItemType**Balance Type:**credit**Period Type:**duration |
| X                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   |
|---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
The amount of the prior service cost or credit recognized in net periodic benefit cost relating to benefit changes attributable to plan participants' prior service pursuant to a plan amendment or a plan initiation.
+ References
Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Prior Service Cost -URI http://asc.fasb.org/extlink&oid=49177896Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (h)(1) -URI http://asc.fasb.org/extlink&oid=58740216&loc=d3e1928-114920
+ Details**Name:**us-gaap_DefinedBenefitPlanAmortizationOfPriorServiceCostCredit**Namespace Prefix:**us-gaap_**Data Type:**xbrli:monetaryItemType**Balance Type:**debit**Period Type:**duration |
| X                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                     |
|-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
The increase in the fair value of plan assets from contributions made by the employer.
+ References
Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (b)(3) -URI http://asc.fasb.org/extlink&oid=58740216&loc=d3e1928-114920
+ Details**Name:**us-gaap_DefinedBenefitPlanContributionsByEmployer**Namespace Prefix:**us-gaap_**Data Type:**xbrli:monetaryItemType**Balance Type:**debit**Period Type:**duration |
| X                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   |
|-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
An amount calculated as a basis for determining the extent of delayed recognition of the effects of changes in the fair value of assets. The expected return on plan assets is determined based on the expected long-term rate of return on plan assets and the market-related value of plan assets.
+ References
Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Expected Return on Plan Assets -URI http://asc.fasb.org/extlink&oid=6512171Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (h)(3) -URI http://asc.fasb.org/extlink&oid=58740216&loc=d3e1928-114920
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| - Definition
The increase in a defined benefit pension plan's projected benefit obligation or a defined benefit postretirement plan's accumulated postretirement benefit obligation due to the passage of time.
+ References
Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (h)(2) -URI http://asc.fasb.org/extlink&oid=58740216&loc=d3e1928-114920Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (a)(2) -URI http://asc.fasb.org/extlink&oid=58740216&loc=d3e1928-114920
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|---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
The total amount of net periodic benefit cost for defined benefit plans for the period. Periodic benefit costs include the following components: service cost, interest cost, expected return on plan assets, gain (loss), prior service cost or credit, transition asset or obligation, and gain (loss) due to settlements or curtailments.
+ References
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| - Definition
The actuarial present value of benefits attributed by the pension benefit formula to services rendered by employees during the period. The portion of the expected postretirement benefit obligation attributed to employee service during the period. The service cost component is a portion of the benefit obligation and is unaffected by the funded status of the plan.
+ References
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| - Definition
Amount of employer's best estimate of contributions expected to be paid to the plan in the current remaining fiscal period.
+ References
No definition available.
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| - Definition
The amount of cash or cash equivalents contributed by the entity to fund its pension plans.
+ References
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