XML 84 R72.htm IDEA: XBRL DOCUMENT v3.7.0.1
Carrying Value of Goodwill (Detail) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2016
Dec. 31, 2015
Goodwill [Line Items]    
Cost $ 99,504 $ 99,504
Accumulated Impairment (30,808) (30,808)
Foreign Currency Adjustment (40) (36)
Net Carrying Amount $ 68,656 $ 68,660