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Accounts Payable & Other Current Liabilities - Summary of Accounts Payable and Other Current Liabilities (Detail) (USD $)
In Thousands, unless otherwise specified
Sep. 30, 2013
Dec. 31, 2012
Payables And Accruals [Abstract]    
Accounts payable $ 1,126 $ 174
Employee benefits and compensation related accruals 1,051 400
Accrued expenses and other liabilities 998 863
Accounts payable and other current liabilities $ 3,175 $ 1,437