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Principal Payment Amounts Due until the Balance is Paid in Full (Detail)
$ in Thousands
Apr. 23, 2016
USD ($)
2016 Term Loan  
Long Term Debt Maturities Repayments Of Principal [Line Items]  
Remainder of 2016 $ 11,250
2017 15,000
2018 15,000
2019 31,875
2020 60,000
2021 16,875
2013 Term Loan  
Long Term Debt Maturities Repayments Of Principal [Line Items]  
Remainder of 2016 60,000
2017 112,500
2018 $ 60,000