XML 88 R63.htm IDEA: XBRL DOCUMENT v2.4.1.9
Income Taxes - Additional Information (Detail) (USD $)
 12 Months Ended
Dec. 31, 2014
Dec. 31, 2013
Dec. 31, 2012
Income Tax Reconciliation [Line Items]      
Foreign net operating loss carryforwards expiration period start year 2017    
Foreign net operating loss carryforwards expiration period end year 2024    
Valuation allowance $ 3,614,000us-gaap_DeferredTaxAssetsValuationAllowance $ 1,420,000us-gaap_DeferredTaxAssetsValuationAllowance  
Impact of valuation allowances on Income tax provision 1,900,000plpc_ValuationAllowancesCreditedToIncomeTaxProvision    
Net increase in valuation allowance from the prior year 2,200,000us-gaap_ValuationAllowanceDeferredTaxAssetChangeInAmount    
Deferred tax liability not established by the company 131,000,000us-gaap_UndistributedEarningsOfForeignSubsidiaries    
Income taxes paid, net of refunds 7,700,000us-gaap_IncomeTaxesPaidNet 19,900,000us-gaap_IncomeTaxesPaidNet 16,000,000us-gaap_IncomeTaxesPaidNet
Recognized accrued interest and penalties lapsed 100,000plpc_UnrecognizedTaxBenefitsInterestOnIncomeTaxesExpenseMaximum 100,000plpc_UnrecognizedTaxBenefitsInterestOnIncomeTaxesExpenseMaximum 100,000plpc_UnrecognizedTaxBenefitsInterestOnIncomeTaxesExpenseMaximum
Payment of interest accrued 600,000us-gaap_UnrecognizedTaxBenefitsInterestOnIncomeTaxesAccrued 600,000us-gaap_UnrecognizedTaxBenefitsInterestOnIncomeTaxesAccrued 600,000us-gaap_UnrecognizedTaxBenefitsInterestOnIncomeTaxesAccrued
Accrued penalties payment 300,000us-gaap_UnrecognizedTaxBenefitsIncomeTaxPenaltiesAccrued 300,000us-gaap_UnrecognizedTaxBenefitsIncomeTaxPenaltiesAccrued 300,000us-gaap_UnrecognizedTaxBenefitsIncomeTaxPenaltiesAccrued
Unrecognized tax benefits that would impact effective tax rate 200,000us-gaap_UnrecognizedTaxBenefitsThatWouldImpactEffectiveTaxRate 0us-gaap_UnrecognizedTaxBenefitsThatWouldImpactEffectiveTaxRate 700,000us-gaap_UnrecognizedTaxBenefitsThatWouldImpactEffectiveTaxRate
Scenario, Forecast [Member]      
Income Tax Reconciliation [Line Items]      
Decrease in unrecognized tax benefits within next fiscal year due to effective settlement 600,000us-gaap_UnrecognizedTaxBenefitsDecreasesResultingFromSettlementsWithTaxingAuthorities
/ us-gaap_StatementScenarioAxis
= us-gaap_ScenarioForecastMember		    
Maximum [Member] | Foreign Country [Member]      
Income Tax Reconciliation [Line Items]      
Foreign net operating loss carryforwards 2,600,000plpc_OperatingLossCarryforwardsAfterTax
/ us-gaap_IncomeTaxAuthorityAxis
= us-gaap_ForeignCountryMember
/ us-gaap_RangeAxis
= us-gaap_MaximumMember		    
Minimum [Member] | Foreign Country [Member]      
Income Tax Reconciliation [Line Items]      
Foreign net operating loss carryforwards $ 1,000,000plpc_OperatingLossCarryforwardsAfterTax
/ us-gaap_IncomeTaxAuthorityAxis
= us-gaap_ForeignCountryMember
/ us-gaap_RangeAxis
= us-gaap_MinimumMember