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Shareholders' Equity (Details) - USD ($)	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020	Nov. 13, 2014
Equity, Class of Treasury Stock [Line Items]
Cash dividends declared per share (in dollars per share)	$ 0.20	$ 0.20	$ 0.40	$ 0.40
Repurchase of shares (in shares)	311,000		440,000	1,057,115
Treasury Stock, Value, Acquired, Cost Method	$ 12,500,000		$ 17,500,000	$ 32,100,000
Remaining authorized repurchase capacity	$ 101,200,000		$ 101,200,000
Share repurchase program 2014
Equity, Class of Treasury Stock [Line Items]
Authorized amount to be repurchased					$ 500,000,000.0

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Aggregate dividends declared during the period for each share of common stock outstanding.

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Equity impact of the cost of common and preferred stock that were repurchased during the period. Recorded using the cost method.

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