Quarterly report pursuant to Section 13 or 15(d)

Supplemental Cash Flow Information - Schedule of Additional Supplemental Cash Flow Information (Detail)

v3.10.0.1
Supplemental Cash Flow Information - Schedule of Additional Supplemental Cash Flow Information (Detail) - USD ($)
$ in Thousands
3 Months Ended 6 Months Ended
Jun. 30, 2018
Jun. 30, 2017
Jun. 30, 2018
Jun. 30, 2017
Supplemental Cash Flow Elements [Abstract]        
Interest paid $ (8,772) $ (4,044) $ (14,732) $ (7,506)
Income taxes paid (34,598) (93,279) (52,555) (101,496)
Income tax refunds $ 1,345 $ 463 $ 2,363 $ 2,669