Revenue - Narrative (Details) - USD ($) $ in Millions	3 Months Ended		12 Months Ended
	Mar. 31, 2022	Mar. 31, 2021	Dec. 31, 2021
Revenue from Contract with Customer [Abstract]
Increase in deferred revenue during period	$ 67.0
Revenues recognized that were included in deferred revenue			$ 255.9
Increase in contract asset	3.8
Contract assets reclassified to receivables	6.3
Commission assets, net of accumulated amortization	116.7		$ 116.1
Amortization of commission assets	$ 8.6	$ 6.0