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Future Minimum Non-Cancelable Lease Payments Under Operating Leases (Detail) (USD $)
In Thousands, unless otherwise specified
Dec. 31, 2013
Future Minimum Payments Under Non-Cancelable Operating Leases With Initial Terms Of One-Year Or More [Line Items]  
2014 $ 1,147
2015 553
2016 142
2017 68
2018 and thereafter 9
Total minimum non-cancellable lease payments $ 1,919