Income Taxes - Valuation allowance (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Income Tax Disclosure [Abstract]
Valuation allowance beginning of the year	$ 7.1	$ 6.6	$ 4.2
Increases recorded as part of acquisition purchase accounting			2.4
Increases recorded as an expense to income tax provision		0.5
Decrease recorded for state valuation allowance release	(0.5)
Valuation allowance end of the year	$ 6.6	$ 7.1	$ 6.6