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Derivatives Instruments Narrative (Details) (USD $)
 12 Months Ended 0 Months Ended 12 Months Ended
Jan. 01, 2011
Jun. 11, 2014
Dec. 31, 2014
Predecessor      
Derivative [Line Items]      
Gain (loss) recognized in OCI $ 100,000us-gaap_DerivativeInstrumentsGainLossRecognizedInOtherComprehensiveIncomeEffectivePortionNet
/ us-gaap_StatementScenarioAxis
= us-gaap_PredecessorMember		    
Foreign Exchange Forward [Member] | Not Designated as Hedging Instrument [Member] | Providência Contracts [Member]      
Derivative [Line Items]      
Derivative, Fair Value, Net   0us-gaap_DerivativeFairValueOfDerivativeNet
/ us-gaap_DerivativeInstrumentRiskAxis
= us-gaap_ForeignExchangeForwardMember
/ us-gaap_HedgingDesignationAxis
= us-gaap_NondesignatedMember
/ us-gaap_ProductOrServiceAxis
= pymr_ProvidnciaContractsMember		  
Foreign Exchange Forward [Member] | Not Designated as Hedging Instrument [Member] | Providência Contracts [Member] | Foreign Currency and Other Loss Net [Member]      
Derivative [Line Items]      
Gain on Derivative Instruments, Pretax   $ 18,900,000us-gaap_GainOnDerivativeInstrumentsPretax
/ us-gaap_DerivativeInstrumentRiskAxis
= us-gaap_ForeignExchangeForwardMember
/ us-gaap_HedgingDesignationAxis
= us-gaap_NondesignatedMember
/ us-gaap_IncomeStatementLocationAxis
= pymr_ForeignCurrencyAndOtherLossNetMember
/ us-gaap_ProductOrServiceAxis
= pymr_ProvidnciaContractsMember		  
Minimum [Member] | Other Contract [Member] | Not Designated as Hedging Instrument [Member] | Providência Contracts [Member] | Foreign Currency and Other Loss Net [Member]      
Derivative [Line Items]      
Derivative, Term of Contract     1 year
Maximum [Member] | Other Contract [Member] | Not Designated as Hedging Instrument [Member] | Providência Contracts [Member] | Foreign Currency and Other Loss Net [Member]      
Derivative [Line Items]      
Derivative, Term of Contract     5 years