XML 27 R28.htm IDEA: XBRL DOCUMENT v2.4.0.8
Goodwill and Intangible Assets - Additional Information (Detail) (USD $)
In Thousands, unless otherwise specified
3 Months Ended
Mar. 31, 2014
Mar. 31, 2013
Goodwill And Intangible Assets Disclosure [Abstract]    
Goodwill $ 1,217  
Goodwill impairment 0 0
Amortization expense on intangible assets $ 697 $ 791