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Stock-based Employee Compensation, Stock Option Plans, and Deferred Compensation Plan for Directors (Tables) | 3 Months Ended
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Mar. 31, 2022
Share-based Payment Arrangement [Abstract] |
Summary of Option Activity | The table below summarizes the option activity for the three months ended March 31, 2022:
|  | Number of Shares |  | Weighted Average Exercise Price per share |  | Aggregate Intrinsic Value
Outstanding at January 1 |  | 1,601,250 |  |  | $ | 51.73 |  |  | $ | 4,886,106 |
Granted |  | — |  |  | — |  |  | — |
Exercised |  | (7,500) |  |  | 41.00 |  |  | 43,548 |
Expired/Forfeited |  | — |  |  | — |  |  | — |
Outstanding at March 31 |  | 1,593,750 |  |  | 51.78 |  |  | 4,486,236 |
Exercisable at March 31 |  | 1,091,000 |  |  | 53.30 |  |  | 2,069,031 |

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- Definition Tabular disclosure of the change in stock options. + References No definition available. + Details
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