Annual report pursuant to Section 13 and 15(d)

Goodwill - Summary of Changes in Carrying Amount of Goodwill (Detail)

v3.3.1.900
Goodwill - Summary of Changes in Carrying Amount of Goodwill (Detail) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2015
Dec. 31, 2014
Dec. 31, 2015
Dec. 31, 2014
Goodwill        
Balance at beginning of the year $ 100,153 $ 100,998    
Acquisition 16,237 0    
Foreign currency translations and other (1,021) (845)    
Balance at end of the year 115,369 100,153    
Goodwill     $ 131,911 $ 116,695
Accumulated impairment losses     (16,542) (16,542)
Goodwill - net $ 100,153 $ 100,998 $ 115,369 $ 100,153