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Operating Leases Future Minimum Rent Payable (Detail) (USD $)
In Thousands, unless otherwise specified
Mar. 31, 2015
Operating Leased Assets [Line Items]  
2015 (remaining nine months) $ 2,711us-gaap_OperatingLeasesFutureMinimumPaymentsRemainderOfFiscalYear
2016 3,079us-gaap_OperatingLeasesFutureMinimumPaymentsDueInTwoYears
2017 723us-gaap_OperatingLeasesFutureMinimumPaymentsDueInThreeYears
2018 475us-gaap_OperatingLeasesFutureMinimumPaymentsDueInFourYears
2019 425us-gaap_OperatingLeasesFutureMinimumPaymentsDueInFiveYears
Thereafter 562us-gaap_OperatingLeasesFutureMinimumPaymentsDueThereafter
Total $ 7,975us-gaap_OperatingLeasesFutureMinimumPaymentsDue