Other Liabilities and Accrued Expenses (Details) - USD ($) $ in Millions	Jun. 30, 2020	Dec. 31, 2019
Other Liabilities Disclosure [Abstract]
Ceded premium payable	$ 5.5	$ 3.9
Accrued advertising costs	4.3	7.9
Accrued professional fees	3.3	2.8
Employee compensation payable	1.8	1.0
Premium taxes payable	1.3	2.6
Indirect taxes payable	0.8	0.4
Income tax payable	0.7	0.5
Other payables	0.8	0.6
Total other liabilities and accrued expense	$ 18.5	$ 19.7