Common Stock, Preferred Stock and Equity Plans - Employee Benefits (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Equity [Abstract]
Maximum percentage of annual compensation contributed by the participant (percent)	60.00%
Defined contribution plan, cost	$ 21.8	$ 19.2	$ 15.8