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Equity (Stock Repurchase Program) (Details) - USD ($) $ / shares in Units, shares in Millions	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020	Feb. 28, 2021
Equity [Abstract]
Shares repurchased and retired during period (in shares)	0.7	1.0
Common stock value repurchased including acquisition costs	$ 12,400,000	$ 12,000,000.0
Average cost per share of repurchased shares (in dollars per share)	$ 17.20	$ 12.51
Stock repurchase program, authorized amount			$ 50,000,000.0
Stock repurchase program remaining authorized amount	$ 40,100,000

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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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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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