Segment Information - Components of Adjusted Capital Expenditures (Details) - USD ($) $ in Thousands |
3 Months Ended | 9 Months Ended | ||
---|---|---|---|---|
Sep. 30, 2017 |
Sep. 30, 2016 |
Sep. 30, 2017 |
Sep. 30, 2016 |
|
Segment Reporting [Abstract] | ||||
Additions to property and equipment | $ 75,401 | $ 89,639 | $ 242,811 | $ 254,232 |
Capitalized implementation costs | 16,524 | 21,309 | 47,968 | 64,577 |
Adjusted Capital Expenditures | $ 91,925 | $ 110,948 | $ 290,779 | $ 318,809 |