Income Taxes (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020	Dec. 31, 2020
Income Tax Disclosure [Abstract]
Income tax expense	$ 1.3	$ 2.2	$ 4.4	$ 2.6
Effective income tax rate (percent)	16.00%	13.00%	11.80%	13.40%
Unrecognized tax benefits	$ 1.9		$ 1.9		$ 1.9
Unrecognized tax benefit that would impact effective tax rate	1.3		1.3		$ 1.3
Income tax penalties and interest accrued	$ 0.3		$ 0.3