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Supplemental Cash Flow Information (Detail) - USD ($)
$ in Thousands
3 Months Ended
Mar. 31, 2019
Mar. 31, 2018
Supplemental disclosure of cash flow information:    
Cash paid for interest $ 4,494 $ 746
Cash paid for taxes 98 70
Non-cash investing activities:    
Translation gain adjustment $ 1,306 $ 3,380