LONG-TERM DEBT (Tables)

12 Months Ended

Dec. 31, 2017

Debt Disclosure [Abstract]

Schedule of all principal debt payment amounts related to bond maturities

The following table shows the future maturities of our long-term debt outstanding as of December 31, 2017:

(in millions)	Payments
2018	$	250.0
2019	—
2020	—
2021	—
2022	—
Thereafter	925.0
Total	$	1,175.0