XML 67 R38.htm IDEA: XBRL DOCUMENT v2.4.0.6
Goodwill and Other Intangible Assets - Additional Information (Detail) (USD $)
In Thousands, unless otherwise specified
3 Months Ended
Mar. 31, 2013
Dec. 31, 2012
Disclosure Goodwill And Other Intangible Assets Additional Information [Abstract]    
Goodwill $ 55,569 $ 56,324
Other Intangible assets 49,527 50,892
Amortization expense of intangible assets 1,078  
Estimated Future Amortization Expense by Fiscal Year [Abstract]    
Remainder of 2013 3,130  
2014 4,173  
2015 4,173  
2016 4,167  
2017 3,826  
2018 2,417  
After 2018 $ 970