Long-term Debt (Tables)

9 Months Ended

Sep. 30, 2015

Debt Disclosure [Abstract]

Schedule of Long-term Debt

Long-term debt is comprised of the following:    

	As of				Three Months Ended September 30,			Nine Months Ended September 30,
	September 30, 2015		December 31, 2014		2015		2014	2015		2014
	(in millions)				(weighted-average interest rates)
Senior term loans due through 2026 - 2027	$	492.1	$	132.0	4.10	%	N/A	4.10	%	N/A
Junior term loans due through 2021 - 2022	56.1		16.0		6.90	%	N/A	6.90	%	N/A
Long-term debt	$	548.2	$	148.0
Less current maturities	37.8		10.4
Less unamortized discounts	10.3		2.4
Total	$	500.1	$	135.2

Schedule of Maturities of Long-term Debt

At September 30, 2015, long-term debt principal payments for the next five years and thereafter are as follows:

	September 30, 2015
	(in millions)
remainder of 2015	$	9.6
2016	39.7
2017	41.8
2018	43.7
2019	45.8
2020 and thereafter	367.6
Total debt principal payments	$	548.2

Schedule of Interest Expense, Long-term Debt

Interest expense related to debt consists of the following:

	Three Months Ended September 30,				Nine Months Ended September 30,
	2015		2014		2015		2014
	(in thousands)
Senior term loans	$	4,639	$	—	$	10,260	$	—
Junior term loans	926		—		2,023		—
Amortization of debt discounts	340		—		729		—
Total	$	5,905	$	—	$	13,012	$	—