Commitments and Contingent Liabilities (Tables)

3 Months Ended

Mar. 31, 2020

Commitments And Contingencies Disclosure [Abstract]

Changes in Accrued Liability for Environmental Matters

The following table reflects changes in the accrued liability for environmental matters, of which $2.7 million and $2.8 million are classified as current liabilities at March 31, 2020 and December 31, 2019, respectively:

	Period ended
	March 31, 2020			December 31, 2019
(Dollars in millions)
Balance at beginning of year	$	9.5		$	10.1
Expense		0.0			0.5
Reversal of reserves		0.0			(0.8	)
Cash expenditures		0.0			(0.3	)
Currency translation		(0.2	)		0.0
Balance at end of period	$	9.3		$	9.5