XML 33 R71.htm IDEA: XBRL DOCUMENT v2.4.1.9
Income taxes (Details 2) (USD $)
In Millions, unless otherwise specified
12 Months Ended
Dec. 31, 2014
Dec. 31, 2013
Dec. 31, 2012
Income taxes      
State tax, High End     0.20%plpm_EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxesHighEnd
Reconciliation from the U.S. Federal statutory income rate of 34.0% to the effective income tax rate      
Federal statutory rate 34.00%us-gaap_EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate 34.00%us-gaap_EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate 34.00%us-gaap_EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate
State tax (less than 0.2% for 2012) 0.24%us-gaap_EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes 9.20%us-gaap_EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes  
Permanent differences 2.49%plpm_EffectiveIncomeTaxRateReconciliationPermanentDifferences 54.30%plpm_EffectiveIncomeTaxRateReconciliationPermanentDifferences (4.80%)plpm_EffectiveIncomeTaxRateReconciliationPermanentDifferences
Foreign tax rates at rates different from U.S. rates (22.06%)us-gaap_EffectiveIncomeTaxRateReconciliationForeignIncomeTaxRateDifferential (82.70%)us-gaap_EffectiveIncomeTaxRateReconciliationForeignIncomeTaxRateDifferential 18.80%us-gaap_EffectiveIncomeTaxRateReconciliationForeignIncomeTaxRateDifferential
Valuation allowance 6.05%us-gaap_EffectiveIncomeTaxRateReconciliationChangeInDeferredTaxAssetsValuationAllowance 50.20%us-gaap_EffectiveIncomeTaxRateReconciliationChangeInDeferredTaxAssetsValuationAllowance (51.40%)us-gaap_EffectiveIncomeTaxRateReconciliationChangeInDeferredTaxAssetsValuationAllowance
Total tax provision 20.72%us-gaap_EffectiveIncomeTaxRateContinuingOperations 65.00%us-gaap_EffectiveIncomeTaxRateContinuingOperations (3.40%)us-gaap_EffectiveIncomeTaxRateContinuingOperations
Uncertain tax positions $ 0us-gaap_LiabilityForUncertainTaxPositionsCurrent $ 0us-gaap_LiabilityForUncertainTaxPositionsCurrent