Summary of Significant Accounting Policies (Details 3) - Self-insurance - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Loss Contingencies [Line Items]
Insurance expense from continuing operations	$ 25.6	$ 21.1	$ 12.5
Decrease in pre-tax insurance expense due to retrospective insurance reserve adjustments from continuing operations	0.2	1.3	$ 0.8
Liabilities for asserted and unasserted claims	28.3	27.3
Liabilities covered by insurance carriers	$ 4.1	$ 5.2