Shareholders' Equity - Share Repurchases (Details) - USD ($) shares in Millions, $ in Millions	12 Months Ended
Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Disclosure Shareholders Equity [Abstract]
Total number of shares repurchased and retired	3.8	0.6	0.1
Total investment	$ 461.6	$ 50.3	$ 8.4

Equity impact of the value of stock that has been repurchased and retired during the period. The excess of the purchase price over par value can be charged against retained earnings (once the excess is fully allocated to additional paid in capital).

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Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration