Leases (Tables)

6 Months Ended

Jun. 30, 2019

Leases [Abstract]

Schedule of Supplemental Unaudited Balance Sheet Information Related to Leases

Supplemental unaudited balance sheet information related to the Company's leases was as follows:

(dollars in millions)	Balance Sheet Location	June 30, 2019
Operating lease assets, net of amortization	Operating lease right-of-use assets	$	37.4
Finance lease assets, net of amortization	Property, plant and equipment, net		34.8
Operating lease liabilities:
Current operating lease liabilities	Other current liabilities		10.9
Noncurrent operating lease liabilities	Operating lease liabilities		33.7
Total operating lease liabilities			44.6
Finance lease liabilities:
Current finance lease liabilities	Current portion of long-term debt		15.2
Noncurrent finance lease liabilities	Long-term debt, less current portion		63.1
Total finance lease liabilities		$	78.3

Components of Lease Expense

The components of lease expense were as follows:

(dollars in millions)	Three Months Ended June 30, 2019		Six Months Ended June 30, 2019
Operating lease cost	$	3.3	$	6.4
Short-term lease cost		—		0.1
Variable lease cost		0.6		1.1
Finance lease cost:
Depreciation on leased assets		1.8		3.7
Interest on lease liabilities		1.3		2.5
Total lease cost	$	7.0	$	13.8

Schedule of Other Information Related to Leases

Other information related to leases was as follows:

(dollars in millions)	Six Months Ended June 30, 2019
Supplemental Cash Flows Information
Cash paid for amounts included in the measurement of lease liabilities:
Operating cash flows from finance leases	$	2.5
Operating cash flows from operating leases		5.6
Financing cash flows from finance leases		5.1
Right-of-use assets obtained in exchange for lease obligations:
New operating leases		3.9
New finance leases		10.3
Weighted Average Remaining Lease Term
Operating leases	8.00 years
Finance leases	7.58 years
Weighted Average Discount Rate
Operating leases		7.03	%
Finance leases		6.94	%

Schedule of Future Minimum Lease Payments Under Non-Cancellable Leases

Future minimum lease payments under non-cancellable leases as of June 30, 2019 are as follows:

(dollars in millions)	Operating Leases			Finance Leases
Six months ended December 31, 2019	$	6.5		$	10.3
2020		12.3			17.5
2021		7.3			13.2
2022		5.1			9.6
2023		4.5			7.6
Thereafter		23.9			45.1
Total future minimum lease payments		59.6			103.3
Less imputed interest		(15.0	)		(25.0	)
Total	$	44.6		$	78.3

Schedule of Future Minimum Lease Payments to be Received under Non-Cancellable Leases

Future minimum lease payments to be received under non-cancellable leases as of June 30, 2019 are as follows:

(dollars in millions)	Operating Leases
Six months ended December 31, 2019	$	1.6
2020		3.1
2021		2.4
2022		1.7
2023		1.7
Thereafter		18.6
Total future minimum lease payments		29.1
Less imputed interest		(10.5	)
Total	$	18.6