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Stock Incentive Plans (Tables) | 9 Months Ended
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Sep. 30, 2023
Share-Based Payment Arrangement [Abstract] |
Schedule of Share-based Compensation Expense | The Company recorded share-based compensation expense as follows for the three and nine months ended September 30, 2023 and 2022:
| Three Months Ended |  | Nine Months Ended
| September 30, 2023 |  | September 30, 2022 |  | September 30, 2023 |  | September 30, 2022
Share-based compensation expense | $ | 2,736 |  |  | $ | 2,355 |  |  | $ | 8,349 |  |  | $ | 7,661 |
Schedule of Share-based Payment Arrangement Activity | Stock option transactions during the nine months ended September 30, 2023 were as follows:
| Stock Options |  | Weighted-Average Exercise Price
Outstanding as of January 1 | 376 |  |  | $ | 66.13 |
Granted | 55 |  |  | 115.42 |
Exercised | — |  |  | — |
Forfeited | (61) |  |  | 44.97 |
Outstanding as of September 30 | 370 |  |  | $ | 76.91 |
Schedule of Share Activity | Restricted share transactions during the nine months ended September 30, 2023 were as follows:
| Restricted Shares |  | Weighted-Average Grant Date Fair Value
Outstanding as of January 1 | 151 |  |  | $ | 87.82 |
Granted | 78 |  |  | 114.92 |
Vested | (75) |  |  | 81.11 |
Forfeited | (9) |  |  | 104.39 |
Outstanding as of September 30 | 145 |  |  | $ | 104.82 |
Director restricted share transactions during the nine months ended September 30, 2023 were as follows:
| Director Restricted Shares |  | Weighted-Average Grant Date Fair Value
Outstanding as of January 1 | 15 |  |  | $ | 93.70 |
Granted | 15 |  |  | 96.10 |
Vested | (15) |  |  | 93.70 |
Forfeited | (1) |  |  | 96.10 |
Outstanding as of September 30 | 14 |  |  | $ | 96.10 |
Schedule of Activity of Performance Awards | Performance award transactions during the nine months ended September 30, 2023 were as follows assuming target levels of performance:
| Performance Awards |  | Weighted-Average Grant Date Fair Value
Outstanding as of January 1 | 70 |  |  | $ | 87.74 |
Granted | 18 |  |  | 120.27 |
Additional shares awarded based on performance | 4 |  |  | 68.75 |
Earned | (31) |  |  | 69.10 |
Forfeited or unearned | — |  |  | — |
Outstanding as of September 30 | 61 |  |  | $ | 105.95 |
Schedule of Employee Stock Purchase Plan | Employee stock purchase plan activity and related information was as follows:
| Nine Months Ended
| September 30, 2023 |  | September 30, 2022
Shares purchased by participants under the ESPP | 4 |  |  | 5 |
Average purchase price | $ | 94.23 |  |  | $ | 82.76 |
Weighted-average fair value of each purchase right under the ESPP granted¹ | $ | 10.47 |  |  | $ | 9.20 |
Share-based compensation expense for ESPP | $ | 42 |  |  | $ | 42 |
¹ Equal to the discount from the market value of the common stock at the end of each six month purchase period.

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- Definition Tabular disclosure of allocation of amount expensed and capitalized for award under share-based payment arrangement to statement of income or comprehensive income and statement of financial position. Includes, but is not limited to, corresponding line item in financial statement. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (h)(1) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480429/718-10-50-2 + Details
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- Definition Tabular disclosure of activity for award under share-based payment arrangement. Includes, but is not limited to, outstanding award at beginning and end of year, granted, exercised, forfeited, and weighted-average grant date fair value. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(2) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480429/718-10-50-2 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (d) -SubTopic 10 -Topic 718 -Publisher FASB -URI https://asc.fasb.org//1943274/2147480429/718-10-50-2 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (e) -SubTopic 10 -Topic 718 -Publisher FASB -URI https://asc.fasb.org//1943274/2147480429/718-10-50-2 + Details
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- Definition Tabular disclosure of number, weighted-average exercise price or conversion ratio, aggregate intrinsic value, and weighted-average remaining contractual term for outstanding performance-based awards that are fully vested and expected to vest. Includes, but is not limited to, unvested awards for which requisite service period has not been rendered but that are expected to vest based on achievement of performance condition, if forfeitures are recognized when they occur. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 718 -SubTopic 10 -Subparagraph (e)(1) -Name Accounting Standards Codification -Paragraph 2 -Section 50 -Publisher FASB -URI https://asc.fasb.org//1943274/2147480429/718-10-50-2 + Details
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- Definition Tabular disclosure of employee stock purchase plan activity. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (g) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480429/718-10-50-2 + Details
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- Definition Disclosure of the number and weighted-average grant date fair value for restricted stock and restricted stock units that were outstanding at the beginning and end of the year, and the number of restricted stock and restricted stock units that were granted, vested, or forfeited during the year. + References No definition available. + Details
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