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Commitments - Schedule of Future Minimum Lease Payments Under Operating Leases, Net of Amount to be Received Under Sub Leases (Detail) (USD $)
In Thousands, unless otherwise specified
Dec. 31, 2013
Commitments And Contingencies Disclosure [Abstract]  
2014 $ 4,342
2015 4,107
2016 3,713
2017 2,974
2018 2,846
Thereafter 3,049
Total $ 21,031