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Equity (Stock Repurchase Program) (Details) - USD ($) $ / shares in Units, shares in Millions, $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Feb. 22, 2022
Equity [Abstract]
Shares repurchased and retired during period (in shares)	5.5	4.2
Common stock value repurchased including acquisition costs	$ 122.4	$ 48.4
Average cost per share of repurchased shares (in dollars per share)	$ 22.38	$ 11.48
Stock repurchase program, authorized amount	$ 50.0	$ 50.0
Stock repurchase program remaining authorized amount	$ 0.4
Increase in authorized shares for repurchase			$ 50.0

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Common Stock Acquired, Average Cost Per Share

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Common Stock Value Acquired Including Acquisition Costs

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- Definition

Amount of increase in stock authorized to be repurchased.

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Amount of stock repurchase plan authorized.

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Amount remaining of a stock repurchase plan authorized.

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Number of shares that have been repurchased and retired during the period.

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