Debt (Tables)

9 Months Ended

Sep. 30, 2018

Debt Disclosure [Abstract]

Schedule of Components of Long-term Debt

Long-term debt is comprised of the following:

	September 30, 2018		December 31, 2017
10.75% senior secured notes due April 15, 2022 ($440.0 million face value less unamortized discount and fees of $8.6 million and $10.4 million at September 30, 2018 and December 31, 2017, respectively)	$	431.4	$	429.6
5.50% convertible senior notes due March 1, 2021 ($213.5 million face value less unamortized discount and fees of $21.3 million and $27.2 million at September 30, 2018 and December 31, 2017, respectively)	192.2		186.3
Capital leases	6.1		7.5
Other debt	20.3		21.3
Total	650.0		644.7
Less – current maturities	9.9		10.8
Total long-term debt	$	640.1	$	633.9

See Note 10 for the fair value of the notes.

Schedule of Interest Expense

Interest expense related to the 2021 notes for the three and nine month periods ended September 30, 2018 and 2017 was as follows:

	Three Months Ended September 30,				Nine Months Ended September 30,
	2018		2017		2018		2017
Contractual interest coupon	$	2.9	$	2.9	$	8.8	$	8.8
Amortization of debt discount	1.7		1.6		4.9		4.5
Amortization of debt issuance costs	0.3		0.3		0.9		0.9
Total	$	4.9	$	4.8	$	14.6	$	14.2