Debt (Tables)

9 Months Ended

Sep. 30, 2018

Debt Disclosure [Abstract]

Schedule of Debt Obligations

Our debt obligations consisted of the following as of the periods presented:

	September 30,		December 31,
	2018		2017
Term Debt, interest rate of 5.5% and 5.1% as of September 30, 2018 and December    31, 2017, respectively	$	680.0	$	657.3
Senior Notes, interest rate of 11.0% as of December 31, 2017		—		475.0
Revolving Credit Facility ($300.0 and $130.0 available capacity less amounts    reserved for letters of credit, which were $2.7 and $2.9 as of September 30, 2018 and    December 31, 2017, respectively)		—		—
Total debt		680.0		1,132.3
Less unamortized discount on Term Debt		1.7		0.9
Less unamortized debt issuance costs on Senior Notes and Term Debt		6.5		11.6
Less current portion of long-term debt		6.8		—
Long-term debt, less current portion	$	665.0	$	1,119.8

Schedule of Future Principal Payments and Maturities of Indebtedness

The future principal payments and maturities of our debt are as follows:

Years Ending December 31,	Amount
2018	$	1.7
2019		6.8
2020		6.8
2021		6.8
2022		6.8
Thereafter		651.1
	$	680.0