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Restructuring - Schedule of Company's Restructuring Activity (Detail) (USD $)
In Thousands, unless otherwise specified
3 Months Ended 6 Months Ended
Jun. 30, 2013
Jun. 30, 2014
Jun. 30, 2013
Restructuring And Related Activities [Abstract]      
Balance at December 31   $ 0  
Charged to expense 198 747 238
Payments   (624)  
Balance at June 30   $ 123