Annual report pursuant to section 13 and 15(d)

Subsequent Events - Additional Information (Detail)

v2.4.0.8
Subsequent Events - Additional Information (Detail) (USD $)
 12 Months Ended
Dec. 31, 2013
Dec. 31, 2012
Dec. 31, 2011
Subsequent Event [Line Items]      
Business combination, sales revenue $ 26,060,000 $ 4,481,000 $ 8,988,000
Subsequent Event
      
Subsequent Event [Line Items]      
Business combination consideration transferred 35,600,000    
Business combination, cash paid 7,500,000    
Business combination working capital, minimum 3,500,000    
Business combination working capital, maximum 9,100,000    
Business combination issuance of shares of common stock, value 28,100,000    
Business combination, number of trading days 20 days    
Subsequent Event | Maximum
      
Subsequent Event [Line Items]      
Business combination issuance of shares of common stock, shares 6,245,000    
Business combination contingent consideration liability 10,000,000    
Subsequent Event | 2014
      
Subsequent Event [Line Items]      
Business combination, sales revenue 53,000,000    
Business combination, EBITDA targets 63,500,000    
Subsequent Event | 2015
      
Subsequent Event [Line Items]      
Business combination, sales revenue 6,360,000    
Business combination, EBITDA targets $ 7,620,000