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STOCK-BASED COMPENSATION (Tables) | 3 Months Ended
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Mar. 31, 2023
STOCK-BASED COMPENSATION |
Schedule of stock-based employee compensation expense | ​
​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | Three months ended
​ | ​ | March 31,
(in thousands) |  | 2023 | ​ | 2022
Pre-tax expense | ​ | $ | 1,802 | ​ | $ | 1,497
After tax expense | ​ | $ | 1,382 | ​ | $ | 1,130
​
Schedule of summary of the changes in non-vested restricted shares | The following is a summary of the changes in non-vested restricted shares for the three months ended March 31, 2023: ​
​ | ​ | ​ | ​ | ​ | ​
​ | ​ | ​ | ​ | Weighted Average
​ |  | Shares |  | Grant-Date Fair Value
Non-vested shares at January 1, 2023 | ​ | 3,248,728 | ​ | $ | 6.87
Granted |  | 1,180,400 |  | ​ | 9.60
Vested |  | (803,264) |  | ​ | 8.69
Forfeited |  | (31,514) |  | ​ | 8.84
Non-vested shares at March 31, 2023 |  | 3,594,350 | ​ | $ | 7.35
​

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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 -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (h)(1) -URI https://asc.fasb.org/extlink&oid=128089324&loc=d3e5070-113901 + Details
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