Consolidated Statements of Comprehensive Income - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Statement of Comprehensive Income [Abstract]
Net earnings (loss)	$ 102.5	$ 145.9	$ (25.9)
Other comprehensive (loss) income, net of tax:
Translation adjustments	(1.4)	(0.7)	0.5
Adjustment for net periodic pension and other postretirement benefits plans	(3.5)	3.2	3.3
Other comprehensive (loss) income, net of tax	(4.9)	2.5	3.8
Comprehensive income (loss)	$ 97.6	$ 148.4	$ (22.1)