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Commitments and Contingencies (Tables)

12 Months Ended

Dec. 31, 2018

Commitments and Contingencies Disclosure [Abstract]

Schedule of Future Minimum Rental Commitments For Non-Cancelable Leases

($ in millions)		Capital Leases			Operating Leases		Total
2019		$	0.7		7.8		8.5
2020		0.1			7.4		7.5
2021		—			5.1		5.1
2022		—			3.6		3.6
2023		—			2.9		2.9
After 2023		—			9.7		9.7
Total minimum payment required		$	0.8		36.5		37.3

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- Definition

Tabular disclosure of future minimum payments required in the aggregate and for each of the five succeeding fiscal years for capital and operating leases having initial or remaining non-cancelable lease terms in excess of one year and the total minimum rentals to be received in the future under non-cancelable subleases as of the balance sheet date.

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