Other Liabilities and Accrued Expenses (Details) - USD ($) $ in Millions	Jun. 30, 2021	Dec. 31, 2020
Other Liabilities Disclosure [Abstract]
Accrued advertising costs	$ 10.3	$ 6.8
Employee compensation payable	3.8	3.7
Premium taxes payable	3.0	3.2
Income tax payable	2.6	0.3
Advance premium	2.5	0.0
Accrued professional fees	2.4	2.6
VAT payable	0.2	0.2
Other payables	3.2	1.9
Total other liabilities and accrued expenses	$ 28.0	$ 18.7