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Stockholders' Equity (Details) - USD ($) shares in Thousands, $ in Millions | 12 Months Ended |
--- | --- | ---
Dec. 31, 2021 | Dec. 31, 2020 | Dec. 31, 2019 | Aug. 20, 2021
Share Repurchases [Abstract] |  |  |  |
Number of Shares Authorized to be Repurchased | 6,600 |  |  |
Additional Shares Authorized to be Repurchased |  |  |  | 3,000
Treasury Stock, Shares, Acquired | 1,800 | 1,500 | 0 |
Payments of Dividends | $ 45.9 | $ 6.5 | $ 6.6 |
Special Dividend | 39.5 |  |  |
Regular Dividend | $ 6.4 | $ 6.5 | $ 6.6 |

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- Definition Note 10. Share Repurchases [Abstract] + References No definition available. + Details
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