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Goodwill and Other Intangible Assets - Estimated Future Amortization Expense For Other Intangible Assets (Detail) (USD $)
In Thousands, unless otherwise specified
Jun. 30, 2013
Dec. 31, 2012
Jan. 01, 2012
Goodwill And Intangible Assets Disclosure [Abstract]      
For the six months ending December 31, 2013 $ 3,054    
Fiscal year 2014 3,936    
Fiscal year 2015 1,244    
Fiscal year 2016 701    
Fiscal year 2017 and beyond 749    
Carrying Value $ 9,684 $ 12,765 $ 22,907