Other Liabilities and Accrued Expenses (Details) - USD ($) $ in Millions	Mar. 31, 2023	Dec. 31, 2022
Other Liabilities Disclosure [Abstract]
Lease liabilities	$ 33.6	$ 35.2
Accrued advertising costs	11.0	6.8
Uncertain tax position	9.0	8.1
Employee compensation	7.7	12.8
Accrued professional fees	6.4	5.5
Advance premium	3.9	2.1
Premium taxes payable	3.6	6.2
Accrued hosting and software	2.5	2.0
Income taxes payable	0.7	0.6
Warrant liability	0.0	0.3
Other payables	6.6	4.9
Total	$ 85.0	$ 84.5