Significant Accounting Policies and Practices - Components of Accrued and Other Current Liabilities (Details) - USD ($) $ in Millions	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Accrued And Other Current Liabilities [Abstract]
Accrued rent	$ 21.4	$ 19.0
Compensation and payroll withholdings	29.2	25.6
Property, payroll and other taxes	7.8	6.9
Accrued insurance	24.0	20.0
Contract liabilities	17.4	15.7	$ 12.5
Contingent Consideration	1.8
Accrued expenses	36.0	36.1
Accrued and other current liabilities	$ 137.6	$ 123.3