Annual report pursuant to Section 13 and 15(d)

Selected Quarterly Financial Data - Schedule of Quarterly Financial Data (Parenthetical) (Detail)

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Selected Quarterly Financial Data - Schedule of Quarterly Financial Data (Parenthetical) (Detail) (USD $)
In Thousands, unless otherwise specified
12 Months Ended
Dec. 31, 2013
Income Statement [Abstract]  
Stock-based and other compensation in connection with IPO $ 31,268