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Schedule Of Estimated Future Amortization Expense For Intangible Assets (Detail) (USD $)
In Thousands, unless otherwise specified
Jun. 30, 2013
Goodwill and Intangible Assets Disclosure [Line Items]  
Remainder of 2013 $ 6,713
2014 11,814
2015 8,157
2016 4,897
2017 $ 2,955