Business Combinations - Contingent Consideration Rollforward (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Contingent Consideration
Balance at December 31, 2021			$ 21.2
Decrease in fair value of contingent consideration liabilities			(2.7)
Balance at September 30, 2022	$ 18.5		18.5
SES
Contingent Consideration
Balance at December 31, 2021			19.1
Decrease in fair value of contingent consideration liabilities	(0.9)	$ 0.4	(1.7)	$ 2.4
Balance at September 30, 2022	17.4		17.4
BIG
Contingent Consideration
Balance at December 31, 2021			2.1
Decrease in fair value of contingent consideration liabilities	(0.8)	$ (0.1)	(1.0)	$ (0.1)
Balance at September 30, 2022	$ 1.1		$ 1.1