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Stock-Based Compensation (Tables) | 12 Months Ended
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Dec. 31, 2022
Share-Based Payment Arrangement [Abstract] |
Restricted Stock Unit and Performance Share Transactions | A summary of restricted stock units, performance shares and stock options for the year ended December 31, 2022, is shown below:
| Restricted Stock Units | Weighted Average Grant Date Fair Value | Performance Shares | Weighted Average Grant Date Fair Value | Stock Options | Weighted Average Grant Date Fair Value
Outstanding as of December 31, 2021 | 567,891 |  | $129.58 | 780,544 |  | $156.56 | 202,702 |  | $32.65
Granted | 189,213 |  | $164.57 | 244,717 |  | $196.83 | — |  |
Distributed (vested) | (242,307) |  |  | (104,551) |  |  | — |  |
Cancelled | (20,336) |  |  | (194,225) |  |  | — |  |
Outstanding as of December 31, 2022 (1) | 494,461 |  | $145.64 | 726,485 |  | $201.83 | 202,702 |  | $32.65
Vested or expected to vest as of December 31, 2022 | 494,461 |  |  | 435,217 |  |  | 202,702 |  |
(1) Outstanding performance shares are reflected at the maximum possible payout that may be earned during the relevant performance periods.

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