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Stock-Based Compensation (Tables) | 12 Months Ended
--- | ---
Dec. 31, 2025
Stock-based payment awards |
Schedule of stock-based compensation expense | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | Year Ended December 31,
(in thousands) | ​ | 2025 | ​ ​ ​ | 2024 | ​ ​ ​ | 2023
Equity award expense | ​ | $ | 19,027 | ​ | $ | 14,646 | ​ | $ | 12,998
Liability award expense | ​ |  | 12,518 | ​ |  | 18,393 | ​ |  | 7,910
Total stock-based compensation expense | ​ | $ | 31,545 | ​ | $ | 33,039 | ​ | $ | 20,908
Schedule of valuation assumptions | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | Year Ended December 31, | ​
​ | ​ | 2025 | ​ | 2024 | ​ | 2023 | ​
Remaining performance period as of grant date (in years) | ​ ​ ​ | ​ | 2.9 | ​ ​ ​ | ​ | 2.9 | ​ ​ ​ | ​ | 2.9 | ​ ​ ​
Risk-free interest rate used |  | ​ | 4.2 | % | ​ | 4.1 | % | ​ | 3.9 | %
Grant-date fair value | ​ | $ | 47.98 | ​ | $ | 23.67 | ​ | $ | 15.68 | ​
Restricted stock and performance-based restricted stock units |
Stock-based payment awards |
Schedule of stock activity | ​
​ | ​ | ​ | ​ | ​ | ​
​ | ​ | ​ | ​ | Weighted
​ | ​ | ​ | ​ | Average
​ | ​ | ​ | ​ | Grant Date
​ | ​ | ​ | ​ | Fair Value
(in thousands, except per share amounts) | ​ ​ ​ | Shares | ​ ​ ​ | Per Share
Non-vested restricted stock and performance-based restricted stock units, December 31, 2024 |  | 2,276 | ​ | $ | 12.81
Granted |  | 642 | ​ |  | 28.45
Adjustment for performance | ​ | 205 | ​ | ​ | 11.96
Vested |  | (1,375) | ​ |  | 11.43
Canceled |  | (72) | ​ |  | 21.97
Non-vested restricted stock and performance-based restricted stock units, December 31, 2025 |  | 1,676 | ​ | $ | 19.44
Cash-settled performance units |
Stock-based payment awards |
Schedule of stock activity | ​
​ | ​ | ​ | ​ | ​ | ​
​ | ​ | ​ | ​ | Weighted
​ | ​ | ​ | ​ | Average
​ | ​ | ​ | ​ | Grant Date
​ | ​ | ​ | ​ | Fair Value
(in thousands, except per share amounts) | ​ ​ ​ | Shares | ​ ​ ​ | Per Share
Non-vested cash-settled performance units, December 31, 2024 |  | 539 | ​ | $ | 10.67
Granted |  | 100 | ​ |  | 29.99
Adjustment for performance | ​ | 206 | ​ | ​ | 8.41
Vested |  | (412) | ​ |  | 8.41
Canceled |  | — | ​ |  | —
Non-vested cash-settled performance units, December 31, 2025 |  | 433 | ​ | $ | 16.20
Time-based cash or equity settled performance units |
Stock-based payment awards |
Schedule of stock activity | ​
​ | ​ | ​ | ​ | ​ | ​
​ | ​ | ​ | ​ | Weighted
​ | ​ | ​ | ​ | Average
​ | ​ | ​ | ​ | Grant Date
​ | ​ | ​ | ​ | Fair Value
(in thousands, except per share amounts) | ​ ​ ​ | Shares | ​ ​ ​ | Per Share
Non-vested time-based cash or equity settled performance units, December 31, 2024 |  | 188 | ​ | $ | 16.00
Granted |  | 88 | ​ |  | 29.99
Adjustment for performance | ​ | — | ​ | ​ | —
Vested |  | (63) | ​ |  | 16.00
Canceled |  | — | ​ |  | —
Non-vested time-based cash or equity settled performance units, December 31, 2025 |  | 213 | ​ | $ | 21.76

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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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