Shareholders' Equity - Share Repurchase and Dividends (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021	May 31, 2021	May 31, 2019
Shareholders' Equity
Number of shares purchased for issuance under share-based payment arrangement.		0
May 2019 Repurchase Program
Shareholders' Equity
Amount approved for repurchase of common stock						$ 300.0
Common stock repurchased during the period (in shares)				555,602
Aggregate cost of common stock repurchased during the period				$ 34.5
May 2021 Repurchase Program
Shareholders' Equity
Amount approved for repurchase of common stock					$ 500.0
Common stock repurchased during the period (in shares)	1,192,898		3,779,694	530,703
Aggregate cost of common stock repurchased during the period	$ 72.4		$ 238.3	$ 36.6
Remaining authorization amount for repurchase of common stock	$ 142.9		$ 142.9