Quarterly report pursuant to Section 13 or 15(d)

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

v3.10.0.1
Supplemental Cash Flow Information - Additional Supplemental Cash Flow Information (Detail) - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended
Sep. 30, 2018
Sep. 30, 2017
Sep. 30, 2018
Sep. 30, 2017
Supplemental Cash Flow Elements [Abstract]        
Interest paid $ (9,279) $ (5,808) $ (24,011) $ (13,314)
Income taxes paid (38,445) (3,616) (91,000) (105,112)
Income tax refunds $ 1,207 $ 5,058 $ 3,570 $ 7,727