Income Taxes - Income Taxes (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Current (benefit) expense:
Federal	$ (1.6)	$ (4.9)	$ (16.0)
State	(0.2)	0.3	0.4
Foreign	9.4	9.4	7.4
Total	7.6	4.8	(8.2)
Deferred expense (benefit):
Federal	(8.0)	(5.9)	7.3
State	0.8	(0.6)	(0.1)
Foreign	(1.1)	0.7	(0.3)
Total	(8.3)	(5.8)	6.9
Income tax benefit	$ (0.7)	$ (1.0)	$ (1.3)