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Debt - Summary of Debt (Parenthetical) (Detail)
In Thousands, unless otherwise specified
9 Months Ended
Sep. 30, 2014
USD ($)
Sep. 30, 2014
U S Dollar Euro [Member]
EUR (€)
Sep. 30, 2014
Debt Instrument, Redemption, through September 2016 [Member]
Term Loan [Member]
USD ($)
Sep. 30, 2014
Debt Instrument, Redemption, through September 2017 [Member]
Term Loan [Member]
USD ($)
Sep. 30, 2014
Debt Instrument, Redemption, through August 2018 [Member]
Term Loan [Member]
USD ($)
Debt Instrument [Line Items]          
Outstanding borrowings under Euro denominated note payable to bank $ 32 € 25 $ 1,200 $ 1,500 $ 1,900
Interest rate 3.82%        
Term loans, year of maturity 2016-01   2016-09 2017-09 2018-08