v2.4.0.8
Background - Additional Information (Detail) (USD $)
12 Months Ended 0 Months Ended
Dec. 31, 2013
Segment
Jun. 21, 2013
IPO [Member]
Jun. 17, 2013
IPO [Member]
Business And Organization [Line Items]      
Number of Operating Segments 3    
Common Stock Shares Issued   11,000,000  
Initial Public Offering (IPO) price per share   $ 17.00  
Initial public offering trade date   Jun. 21, 2013  
Number of convertible preferred stock converted into common stock   66,235,473  
Stock split ratio, per 1 share of common stock     103