v2.4.1.9
Goodwill and Other Intangible Assets Other Intangible Assets, Changes in Net Carrying Amount (Detail) (USD $)
In Thousands, unless otherwise specified
 3 Months Ended
Mar. 31, 2015
Mar. 31, 2014
Other Intangible Assets, Gross Amount [Roll Forward]    
Other intangible assets, beginning of period $ 124,093us-gaap_IntangibleAssetsGrossExcludingGoodwill  
Intangible assets acquired during the period 2,864us-gaap_FinitelivedIntangibleAssetsAcquired1  
Foreign currency translation effect on balances (6,363)us-gaap_FiniteLivedIntangibleAssetsTranslationAdjustments  
Other intangible assets, end of period 120,594us-gaap_IntangibleAssetsGrossExcludingGoodwill  
Other Intangible Assets, Accumulated Amortization [Roll Forward]    
Other intangible assets, beginning of period (23,158)us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization  
Amortization expense (2,752)us-gaap_AmortizationOfIntangibleAssets (2,745)us-gaap_AmortizationOfIntangibleAssets
Foreign currency translation effect on balances 1,474pii_FiniteLivedIntangibleAssetsAccumulatedAmortizationForeignCurrencyTranslationEffect  
Other intangible assets, end of period $ (24,436)us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization