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Supplemental Cash Flow Information - Schedule of Additional Supplemental Cash Flow Information (Detail) - USD ($)
$ in Thousands
3 Months Ended
Mar. 31, 2018
Mar. 31, 2017
Supplemental Cash Flow Elements [Abstract]    
Interest paid $ (5,960) $ (3,462)
Income taxes paid (17,957) (8,217)
Income tax refunds $ 1,018 $ 2,206