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Share-Based Compensation (Tables) | 3 Months Ended
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Mar. 31, 2024
Share-Based Compensation |
Schedule of stock option activity | ​
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​ | ​ | ​ | ​ | ​ | ​
​ | ​ | ​ | ​ | ​ | ​ | Weighted | ​ | ​ | ​
​ | ​ | ​ | ​ | Weighted | ​ | Average | ​ | Aggregate | ​
​ | ​ | ​ | ​ | Average | ​ | Remaining | ​ | Intrinsic | ​
​ |  | Shares |  | Price |  | (Yrs.) |  | (000’s) |
Outstanding at January 1, 2024 | ​ | 107,592 | ​ | $ | 72.60 | ​ | ​ | ​ | ​ | ​ | ​
Exercised | ​ | (6,320) | ​ |  | 6,171 | ​ | ​ | ​ |  | ​ | ​
Expired | ​ | (29) | ​ | ​ | 39.12 | ​ | ​ | ​ |  | ​ | ​
Outstanding at March 31, 2024 | ​ | 101,243 | ​ |  | 73.29 | ​ | 2.56 | ​ | $ | 1,536 | ​
Exercisable at March 31, 2024 | ​ | 101,243 | ​ | ​ | 73.29 | ​ | 2.56 | ​ | $ | 1,536 | ​
Summary of nonvested restricted stock | ​
​ | ​ | ​ | ​ | ​ | ​ | ​
​ |  | ​ |  | Weighted- |
​ | ​ | ​ | ​ | Average |
​ | ​ | ​ | ​ | Grant-Date |
Restricted Stock | ​ | Shares | ​ | Fair Value |
Nonvested at January 1, 2024 |  | 16,248 | ​ | $ | 88.63 | ​
Vested |  | (10,115) | ​ |  | 90.00 | ​
Forfeited |  | (64) | ​ |  | 90.00 | ​
Nonvested at March 31, 2024 |  | 6,069 | ​ | $ | 86.32 | ​
Summary of nonvested RSUs | ​
​ | ​ | ​ | ​ | ​ | ​ | ​
​ |  | ​ |  | Weighted- |
​ | ​ | ​ | ​ | Average |
​ | ​ | ​ | ​ | Grant-Date |
Restricted Stock Units | ​ | Shares | ​ | Fair Value |
Outstanding at January 1, 2024 |  | 873,048 | ​ | $ | 75.22 | ​
Granted |  | 353,490 | ​ |  | 80.87 | ​
Vested | ​ | (344,376) | ​ | ​ | 77.67 | ​
Forfeited | ​ | (5,210) | ​ | ​ | 75.44 | ​
Outstanding at March 31, 2024 |  | 876,952 | ​ | $ | 76.53 | ​

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- Definition Tabular disclosure of the changes in outstanding nonvested shares. + 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 + Details
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- Definition Tabular disclosure of the number and weighted-average grant date fair value for restricted stock units that were outstanding at the beginning and end of the year, and the number of restricted stock units that were granted, vested, or forfeited during the year. + 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)(1) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480429/718-10-50-2 + Details
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- Definition Tabular disclosure for stock option plans. Includes, but is not limited to, outstanding awards at beginning and end of year, grants, exercises, forfeitures, 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)(1) -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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