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Income Taxes - Reconciliation of Federal Statutory Income Tax Rate to Effective Tax Rate (Detail) | 12 Months Ended
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Dec. 31, 2014 | Dec. 31, 2013 | Dec. 31, 2012
Income Taxes [Line Items] |  |  |  |  |  |
Federal statutory income tax rate | 21.00%us-gaap_EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate | [1] | 7.80%us-gaap_EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate | [1] | 7.80%us-gaap_EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate | [1]
Tax effect of international operations | (4.90%)us-gaap_EffectiveIncomeTaxRateReconciliationForeignIncomeTaxRateDifferential | [2] | 10.40%us-gaap_EffectiveIncomeTaxRateReconciliationForeignIncomeTaxRateDifferential | [2] | 23.50%us-gaap_EffectiveIncomeTaxRateReconciliationForeignIncomeTaxRateDifferential | [2]
Change in valuation allowances | 3.40%us-gaap_EffectiveIncomeTaxRateReconciliationChangeInDeferredTaxAssetsValuationAllowance |  | 5.70%us-gaap_EffectiveIncomeTaxRateReconciliationChangeInDeferredTaxAssetsValuationAllowance |  |  |
Withholding taxes | 2.30%pnr_EffectiveIncomeTaxRateReconciliationWithholdingTaxes |  | 1.10%pnr_EffectiveIncomeTaxRateReconciliationWithholdingTaxes |  |  |
Interest limitations | 0.80%pnr_EffectiveIncomeTaxRateReconciliationInterestLimitations |  | 0.50%pnr_EffectiveIncomeTaxRateReconciliationInterestLimitations |  |  |
Non-deductible transaction costs |  |  |  |  | (5.90%)us-gaap_EffectiveIncomeTaxRateReconciliationNondeductibleExpense |
Impact of debt-financing |  |  |  |  | 13.60%pnr_EffectiveIncomeTaxRateReconciliationAtNondeductibleDebtConversionExpense |
Resolution of tax audits |  |  |  |  | 7.00%pnr_EffectiveIncomeTaxRateReconciliationAuditActivity |
Effective tax rate | 22.60%us-gaap_EffectiveIncomeTaxRateContinuingOperations |  | 25.50%us-gaap_EffectiveIncomeTaxRateContinuingOperations |  | 46.00%us-gaap_EffectiveIncomeTaxRateContinuingOperations |
[1] | The statutory rate for 2014 reflects the U.K. statutory rate of 21 percent. For 2013 and 2012, the statutory rate reflects the Swiss statutory rate of 7.8 percent.
[2] | The tax effect of international operations for 2014 consists of non-U.K. jurisdictions. For 2013 and 2012, the tax effect of international operations consists of non-Swiss jurisdictions.

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- Definition Percentage of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 12 -URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32687-109319 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 13 -URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32698-109319 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.4-08.(h)(2)) -URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 08 -Paragraph h -Subparagraph 2 -Article 4 + Details
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