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Share Repurchases (Narrative) (Details) - USD ($)	Jun. 30, 2021	Feb. 19, 2020	Dec. 31, 2019	Feb. 25, 2014
Equity [Abstract]
Stock repurchase program, authorized amount		$ 350,000,000		$ 350,000,000
Remaining authorized repurchase amount	$ 275,000,000		$ 160,000,000
Additional amount authorized for repurchase program		$ 190,000,000

X

- Definition

Stock Repurchase Program, Increase In Authorized Amount

+ References

No definition available.

+ Details

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- References

No definition available.

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- Definition

Amount of stock repurchase plan authorized.

+ References

No definition available.

+ Details

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Data Type:	xbrli:monetaryItemType
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X

- Definition

Amount remaining of a stock repurchase plan authorized.

+ References

No definition available.

+ Details

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