Total Debt (Tables)

12 Months Ended

Dec. 31, 2018

Debt Disclosure [Abstract]

Schedule of Total Debt Outstanding

The following table presents our total debt outstanding:

	As of December 31, 2018
(in millions)	Outstanding Principal		Issuance Costs and Fees		Long-Term Debt, Net
2017 Credit Agreement:
Term Loan B due 2024	$	396.0	$	4.7	$	391.3
Revolving Credit Facility due 2022	—		—		—
Swing line of credit	—		—		—
Total 2017 Credit Agreement	396.0		4.7		391.3
2028 Senior Notes	500.0		7.0		493.0
Total debt	896.0		11.7		884.3
Current maturities of long-term debt	4.0		—		4.0
Total debt, net of current maturities	$	892.0	$	11.7	$	880.3

	As of December 31, 2017
(in millions)	Outstanding Principal		Issuance Costs and Fees		Long-Term Debt, Net
2017 Credit Agreement:
Term Loan B due 2024	$	400.0	$	5.1	$	394.9
Revolving Credit Facility due 2022	239.0		—		239.0
Swing line of credit	3.0		—		3.0
Total 2017 Credit Agreement	642.0		5.1		636.9
2028 Senior Notes	500.0		7.7		492.3
Total debt	1,142.0		12.8		1,129.2
Current maturities of long-term debt	4.0		—		4.0
Total debt, net of current maturities	$	1,138.0	$	12.8	$	1,125.2

Schedule of Future Aggregate Maturities of Total Debt

Future aggregate maturities of total debt are as follows (in millions):

Years Ended December 31,
2019	$	4.0
2020	4.0
2021	4.0
2022	4.0
2023	4.0
Thereafter	876.0
Total	$	896.0