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Stockholders' Equity, Capital Stock and Cash Dividends (Details) - USD ($) $ / shares in Units, $ in Millions | 12 Months Ended |
--- | --- | ---
Dec. 31, 2021 | Dec. 31, 2020 | Dec. 31, 2019 | Jan. 31, 2022
Capital Stock [Abstract] |  |  |  |
Common stock, shares authorized (in shares) | 100,000,000 | 100,000,000 |  |
Common stock, par value (in dollars per share) | $ 0.10 | $ 0.10 |  |
Common stock, shares outstanding (in shares) | 33,177,193 | 33,882,187 |  |
Preferred stock, shares authorized (in shares) | 1,000,000 | 1,000,000 |  |
Preferred stock, shares issued (in shares) | 0 | 0 |  |
Preferred stock, shares outstanding (in shares) | 0 | 0 |  |
Cash Dividends [Abstract] |  |  |  |
Cash dividends paid | $ 6.8 | $ 6.8 | $ 7.0 |
Cash dividends paid (in dollars per share) | $ 0.20 |  |  |
Subsequent Event [Member] | Dividend Declared 2022-Q1 [Member] |  |  |  |
Cash Dividends [Abstract] |  |  |  |
Cash dividend declared |  |  |  | $ 1.7
Cash dividend declared (in dollars per share) |  |  |  | $ 0.05

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