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Accounts Receivable Factoring Agreements Narrative (Details) (USD $)
In Millions, unless otherwise specified
 12 Months Ended
Dec. 31, 2014
Dec. 28, 2013
Dec. 29, 2012
Concentration of Credit Risks and Accounts Receivable Factoring Agreements (Additional Textual) [Abstract]      
Factoring agreement maximum outstanding amount $ 20.0pymr_FactoringAgreementMaximumOutstandingAmount    
Foreign Subsidiary Factoring agreement maximum outstanding amount 84.4pymr_ForeignSubsidiaryFactoringAgreementMaximumOutstandingAmount    
Sale of receivable under factoring agreement 657.8pymr_SaleOfReceivableUnderFactoringAgreement 414.0pymr_SaleOfReceivableUnderFactoringAgreement  
Factoring fees $ 1.6pymr_FactoringFees $ 1.2pymr_FactoringFees $ 1.1pymr_FactoringFees