XML 61 R53.htm IDEA: XBRL DOCUMENT v2.4.1.9
Goodwill and Other Intangible Assets Additional Information (Detail) (USD $)
In Thousands, unless otherwise specified
12 Months Ended
Dec. 31, 2014
Dec. 31, 2013
Dec. 31, 2012
Goodwill and Intangible Assets Disclosure [Abstract]      
Goodwill $ 123,031us-gaap_Goodwill $ 126,697us-gaap_Goodwill $ 56,324us-gaap_Goodwill
Total other intangible assets, net 100,935us-gaap_IntangibleAssetsNetExcludingGoodwill 103,011us-gaap_IntangibleAssetsNetExcludingGoodwill  
Amortization expense of intangible assets 11,599us-gaap_AmortizationOfIntangibleAssets 9,178us-gaap_AmortizationOfIntangibleAssets  
Estimated Future Amortization Expense by Fiscal Year [Abstract]      
2015 11,300us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths    
2016 11,300us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo    
2017 11,000us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearThree    
2018 9,500us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearFour    
2019 8,200us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearFive    
After 2019 $ 3,400us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseAfterYearFive