Other Liabilities and Accrued Expenses (Details) - USD ($) $ in Millions	Mar. 31, 2021	Dec. 31, 2020
Other Liabilities Disclosure [Abstract]
Accrued advertising costs	$ 8.3	$ 6.8
Employee compensation payable	3.1	3.7
Premium taxes payable	1.8	3.2
Advance premium	1.8	0.0
Accrued professional fees	1.7	2.6
Income tax payable	0.5	0.3
VAT payable	0.2	0.2
Other payables	2.4	1.9
Total other liabilities and accrued expenses	$ 19.8	$ 18.7