Consolidated Statements of Comprehensive Income (Loss) (Unaudited) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Statement of Comprehensive Income [Abstract]
Net income (loss)	$ 74.5	$ 54.0	$ 111.6	$ 63.8
Other comprehensive income (loss), net of tax of $0.3 million for the three months ended March 31, 2022 and $0.4 million for the six months ended June 30, 2022
Foreign currency translation adjustments	(2.3)	0.3	(3.1)	0.4
Pension and postretirement liability adjustments	(0.8)	(1.4)	(1.9)	(2.9)
Other comprehensive income (loss), net of tax	(3.1)	(1.1)	(5.0)	(2.5)
Comprehensive Income (Loss), net of tax	$ 71.4	$ 52.9	$ 106.6	$ 61.3