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Derivatives and Financial Instruments - Additional Information (Detail) (USD $) In Millions, unless otherwise specified | 3 Months Ended | 12 Months Ended | 1 Months Ended
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Dec. 31, 2014 | Sep. 27, 2014 | Jun. 28, 2014 | Mar. 29, 2014 | Dec. 31, 2013 | Sep. 28, 2013 | Jun. 29, 2013 | Mar. 30, 2013 | Dec. 31, 2014 | Dec. 31, 2013 | Dec. 31, 2012 | Apr. 30, 2011 | Aug. 31, 2007 | Sep. 30, 2005
Derivative Instruments and Hedging Activities Disclosure [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Discontinued Operation, Provision for Loss (Gain) on Disposal, Net of Tax | $ 0 us-gaap_DiscontinuedOperationProvisionForLossGainOnDisposalNetOfTax | $ (380.1)us-gaap_DiscontinuedOperationProvisionForLossGainOnDisposalNetOfTax | $ 0 us-gaap_DiscontinuedOperationProvisionForLossGainOnDisposalNetOfTax | $ (5.6)us-gaap_DiscontinuedOperationProvisionForLossGainOnDisposalNetOfTax | $ (0.8)us-gaap_DiscontinuedOperationProvisionForLossGainOnDisposalNetOfTax | $ 0 us-gaap_DiscontinuedOperationProvisionForLossGainOnDisposalNetOfTax | $ 0 us-gaap_DiscontinuedOperationProvisionForLossGainOnDisposalNetOfTax | $ 0 us-gaap_DiscontinuedOperationProvisionForLossGainOnDisposalNetOfTax | $ (385.7)us-gaap_DiscontinuedOperationProvisionForLossGainOnDisposalNetOfTax | $ (0.8)us-gaap_DiscontinuedOperationProvisionForLossGainOnDisposalNetOfTax | $ 0 us-gaap_DiscontinuedOperationProvisionForLossGainOnDisposalNetOfTax |  |  |
Outstanding interest rate swap arrangements | 0 us-gaap_InterestRateCashFlowHedgeDerivativeAtFairValueNet |  |  |  | 0 us-gaap_InterestRateCashFlowHedgeDerivativeAtFairValueNet |  |  |  | 0 us-gaap_InterestRateCashFlowHedgeDerivativeAtFairValueNet | 0 us-gaap_InterestRateCashFlowHedgeDerivativeAtFairValueNet |  |  |  |
Loss on early extinguishment of debt |  |  |  |  |  |  |  |  | 0 us-gaap_GainsLossesOnExtinguishmentOfDebt | 0 us-gaap_GainsLossesOnExtinguishmentOfDebt | 75.4 us-gaap_GainsLossesOnExtinguishmentOfDebt |  |  |
Location of the swap on the consolidated balance sheets |  |  |  |  |  |  |  |  | Derivative gains and losses on interest rate swaps included in AOCI |  |  |  |  |
Incremental expense resulting from interest rate swaps |  |  |  |  |  |  |  |  |  |  | 5.3 us-gaap_GainLossOnInterestRateCashFlowHedgeIneffectiveness |  |  |
Interest Rate Swap |  |  |  |  |  |  |  |  |  |  |  |  |  |
Derivative Instruments and Hedging Activities Disclosure [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Average swap interest rate |  |  |  |  |  |  |  |  |  |  |  | 3.65%us-gaap_DerivativeAverageSwaptionInterestRate / pnr_DerivativeInstrumentDisclosureAxis = us-gaap_InterestRateSwapMember |  |
Cost of expiration (termination) |  |  |  |  |  |  |  |  |  |  |  | 11.0 pnr_NotionalAmountOfDerivativesTerminations / pnr_DerivativeInstrumentDisclosureAxis = us-gaap_InterestRateSwapMember |  |
Derivative instrument contractual life |  |  |  |  |  |  |  |  |  |  |  | 10 years |  |
Unrealized net loss |  |  |  |  |  |  |  |  | 7.0 us-gaap_UnrealizedGainLossOnInterestRateCashFlowHedgesPretaxAccumulatedOtherComprehensiveIncomeLoss / pnr_DerivativeInstrumentDisclosureAxis = us-gaap_InterestRateSwapMember | 8.1 us-gaap_UnrealizedGainLossOnInterestRateCashFlowHedgesPretaxAccumulatedOtherComprehensiveIncomeLoss / pnr_DerivativeInstrumentDisclosureAxis = us-gaap_InterestRateSwapMember |  |  |  |
Cross Currency Interest Rate Contract [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Derivative Instruments and Hedging Activities Disclosure [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Derivative Liability, Notional Amount | 250.8 us-gaap_DerivativeLiabilityNotionalAmount / pnr_DerivativeInstrumentDisclosureAxis = us-gaap_ForeignExchangeContractMember |  |  |  | 130.3 us-gaap_DerivativeLiabilityNotionalAmount / pnr_DerivativeInstrumentDisclosureAxis = us-gaap_ForeignExchangeContractMember |  |  |  | 250.8 us-gaap_DerivativeLiabilityNotionalAmount / pnr_DerivativeInstrumentDisclosureAxis = us-gaap_ForeignExchangeContractMember | 130.3 us-gaap_DerivativeLiabilityNotionalAmount / pnr_DerivativeInstrumentDisclosureAxis = us-gaap_ForeignExchangeContractMember |  |  |  |
August 2007 Interest Rate Swap Agreement |  |  |  |  |  |  |  |  |  |  |  |  |  |
Derivative Instruments and Hedging Activities Disclosure [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Swap agreement expiration |  |  |  |  |  |  |  |  |  |  |  |  | 2012-05 |
September 2005 Interest Rate Swap Agreement |  |  |  |  |  |  |  |  |  |  |  |  |  |
Derivative Instruments and Hedging Activities Disclosure [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Effective date of the fixed rate swap |  |  |  |  |  |  |  |  |  |  |  |  |  | Apr. 25, 2006
Fixed interest rate paid |  |  |  |  |  |  |  |  |  |  |  |  |  | 4.68%us-gaap_DerivativeFixedInterestRate / us-gaap_DerivativeInstrumentRiskAxis = pnr_SeptemberTwentyZeroFiveInterestRateSwapAgreementMember
Swap agreement expiration |  |  |  |  |  |  |  |  |  |  |  |  |  | 2013-07
Effective fixed rate paid on debt |  |  |  |  |  |  |  |  |  |  |  |  |  | 5.28%pnr_DebtInstrumentEffectiveInterestRatePercentageAfterInterestRateSwap / us-gaap_DerivativeInstrumentRiskAxis = pnr_SeptemberTwentyZeroFiveInterestRateSwapAgreementMember
Interest rate spread over LIBOR |  |  |  |  |  |  |  |  |  |  |  |  |  | 0.60%pnr_DerivativeBasisSpreadOnFixedRate / us-gaap_DerivativeInstrumentRiskAxis = pnr_SeptemberTwentyZeroFiveInterestRateSwapAgreementMember
Loss on early extinguishment of debt |  |  |  |  |  |  |  |  |  |  | 3.3 us-gaap_GainsLossesOnExtinguishmentOfDebt / us-gaap_DerivativeInstrumentRiskAxis = pnr_SeptemberTwentyZeroFiveInterestRateSwapAgreementMember |  |  |
Location of the swap on the consolidated balance sheets |  |  |  |  |  |  |  |  | Other non-current liabilities | Other non-current liabilities |  |  |  |
September 2005 Interest Rate Swap Agreement | Interest Rate Swap |  |  |  |  |  |  |  |  |  |  |  |  |  |
Derivative Instruments and Hedging Activities Disclosure [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Derivative Liability, Notional Amount |  |  |  |  |  |  |  |  |  |  |  |  |  | 100.0 us-gaap_DerivativeLiabilityNotionalAmount / pnr_DerivativeInstrumentDisclosureAxis = us-gaap_InterestRateSwapMember / us-gaap_DerivativeInstrumentRiskAxis = pnr_SeptemberTwentyZeroFiveInterestRateSwapAgreementMember
April 2011 Interest Rate Swap Agreement [Member] [Member] | Interest Rate Swap |  |  |  |  |  |  |  |  |  |  |  |  |  |
Derivative Instruments and Hedging Activities Disclosure [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Derivative Liability, Notional Amount |  |  |  |  |  |  |  |  |  |  |  | $ 400.0 us-gaap_DerivativeLiabilityNotionalAmount / pnr_DerivativeInstrumentDisclosureAxis = us-gaap_InterestRateSwapMember / us-gaap_DerivativeInstrumentRiskAxis = pnr_AprilTwentyElevenInterestRateSwapAgreementMemberMember |  |

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- Definition Debt Instrument, Effective Interest Rate, Percentage after Interest Rate Swap + References No definition available. + Details
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- Definition Derivative, Basis Spread on Fixed Rate + References No definition available. + Details
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- Definition Derivative Instrument, Contractual Life + References No definition available. + Details
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- Definition Notional Amount Of Derivatives, Terminations + References No definition available. + Details
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- Definition Average fixed interest rate that will be received or paid upon exercise of a group of interest rate swaption contracts. + References No definition available. + Details
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- Definition Fixed interest rate related to the interest rate derivative. + References No definition available. + Details
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- Definition Date the entity entered into the derivative contract, in CCYY-MM-DD format. + References No definition available. + Details
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- Definition Nominal or face amount used to calculate payments on the derivative liability. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 1B -URI http://asc.fasb.org/extlink&oid=35706170&loc=SL5580258-113959 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 1A -Subparagraph (d) -URI http://asc.fasb.org/extlink&oid=35706170&loc=SL5579245-113959 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Notional Amount -URI http://asc.fasb.org/extlink&oid=6519104 + Details
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- Definition Description of where the interest rate derivatives designated as cash flow hedges are reported in the balance sheet. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4B -Subparagraph (d) -URI http://asc.fasb.org/extlink&oid=35706170&loc=SL5624163-113959 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4A -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=35706170&loc=SL5618551-113959 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.(n)(7)) -URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690 + Details
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- Definition Amount after tax of loss recognized for the write-down to fair value, less cost to sell, of a disposal group. Includes after tax gain for a subsequent increase in fair value (less cost to sell) up to the cumulative loss previously recognized through write-downs. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 205 -SubTopic 20 -Section 45 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=6892542&loc=d3e957-107759 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 205 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=6360339&loc=d3e1361-107760 + Details
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- Definition The net gain (loss) during the reporting period due to ineffectiveness in interest rate cash flow hedges. Recognized in earnings. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4C -Subparagraph (d)(1) -URI http://asc.fasb.org/extlink&oid=35706170&loc=SL5624171-113959 + Details
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- Definition Difference between the fair value of payments made and the carrying amount of debt which is extinguished prior to maturity. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3602-108585 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 470 -SubTopic 50 -Section 40 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6850294&loc=d3e12317-112629 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 470 -SubTopic 50 -Section 40 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=6850294&loc=d3e12355-112629 + Details
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- Definition Fair value as of the balance sheet date of all interest rate derivatives designated as cash flow hedging instruments. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 45 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=6945355&loc=d3e41228-113958 + Details
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- Definition Amount of unrealized gain (loss) related to the increase or decrease in fair value of interest rate derivatives designated as cash flow hedging instruments, which was recorded in accumulated other comprehensive income to the extent that the cash flow hedge was determined to be effective. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4C -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=35706170&loc=SL5624171-113959 + Details
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- Details
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