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Supplemental Cash Flow Information (Detail) - USD ($)
$ in Thousands
6 Months Ended
Jun. 30, 2017
Jun. 30, 2016
Supplemental disclosure of cash flow information:    
Cash paid for interest $ 1,704 $ 1,971
Cash paid for taxes 8,753 5,923
Non-cash investing activities:    
Translation adjustment $ 5,288 $ (5,133)