Supplemental Cash Flow Information

12 Months Ended

Dec. 31, 2018

Supplemental Cash Flow Information [Abstract]

Supplemental Cash Flow Information

15. Supplemental Cash Flow Information

Cash paid for interest totaled $20.9 million, $18.4 million and $11.6 million for the years ended December 31, 2018, 2017 and 2016, respectively. Cash paid for income taxes totaled $123.2 million, $78.1 million and $40.9 million for the years ended December 31, 2016, 2017 and 2018, respectively.