XML 81 R64.htm IDEA: XBRL DOCUMENT v3.6.0.2
Changes in Carrying Amount of Goodwill (Detail) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2016
Dec. 31, 2015
Goodwill [Line Items]    
Goodwill, Beginning Balance $ 378,310 $ 387,311
Foreign currency translation adjustment 1,427 (9,001)
Goodwill, Ending Balance $ 379,737 $ 378,310