Long-term Debt (Tables)

6 Months Ended

Jun. 30, 2015

Debt Disclosure [Abstract]

Schedule of Long-term Debt

Long-term debt is comprised of the following:    

	As of				Three Months Ended June 30,			Six Months Ended June 30,
	June 30, 2015		December 31, 2014		2015		2014	2015		2014
	(in millions)				(weighted-average interest rates)
Senior term loans due through 2026 - 2027	$	387.2	$	132.0	4.04	%	N/A	4.04	%	N/A
Junior term loans due through 2021 - 2022	48.6		16.0		6.89	%	N/A	6.89	%	N/A
Long-term debt	$	435.8	$	148.0
Less current maturities	29.7		10.4
Less unamortized discounts	7.1		2.4
Total	$	399.0	$	135.2

Schedule of Maturities of Long-term Debt

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

	June 30, 2015
	(in millions)
remainder of 2015	$	15.2
2016	31.4
2017	33.0
2018	34.6
2019	36.2
2020 and thereafter	285.4
Total debt principal payments	$	435.8

Schedule of Interest Expense, Long-term Debt

Interest expense related to debt consists of the following:

	Three Months Ended June 30,				Six Months Ended June 30,
	2015		2014		2015		2014
	(in thousands)
Senior term loans	$	3,426	$	—	$	5,620	$	—
Junior term loans	678		—		1,097		—
Amortization of debt discounts	230		—		389		—
Total	$	4,334	$	—	$	7,106	$	—