Accrued Liabilities (Tables)

3 Months Ended

Mar. 31, 2020

Payables and Accruals [Abstract]

Accrued Liabilities

Accrued liabilities consisted of the following:

	March 31, 2020		December 31, 2019
	(Dollars in millions)
Accrued benefits	$	14.1	$	21.7
Current portion of postretirement benefit obligation	2.9		2.9
Other taxes payable	11.8		9.9
Current portion of black lung liability	4.6		4.6
Other	8.5		8.2
Total accrued liabilities	$	41.9	$	47.3