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Share Repurchases (Narrative) (Details) - USD ($) | Jun. 30, 2021 | Feb. 19, 2020 | Dec. 31, 2019 | Feb. 25, 2014
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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 |  |

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- Definition Amount of stock repurchase plan authorized. + References No definition available. + Details
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- Definition Amount remaining of a stock repurchase plan authorized. + References No definition available. + Details
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