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STOCK-BASED COMPENSATION - Schedule of Stock Appreciation Rights Activity (Details) - SSARs - USD ($) $ / shares in Units, $ in Thousands | 9 Months Ended |
--- | --- | ---
Sep. 30, 2025 | Dec. 31, 2024
Shares |  |
Outstanding at beginning of period (in shares) | 0 |
Replacement of CrossFirst SSARs (in shares) | 424,390 |
Exercised (in shares) | (119,842) |
Forfeited (in shares) | (4,005) |
Expired (in shares) | (30,145) |
Outstanding at end of period (in shares) | 270,398 |
Exercisable (in shares) | 249,747 |
Weighted- Average Exercise Price |  |
Outstanding at beginning of period (in dollars per share) | $ 0 |
Replacement of CrossFirst SSARs (in dollars per share) | 15.78 |
Exercised (in dollars per shares) | 13.31 |
Forfeited (in dollars per shares) | 16.00 |
Expired (in dollars per shares) | 23.23 |
Outstanding at ending of period (in dollars per share) | 16.04 |
Exercisable (in dollars per share) | $ 15.62 |
Weighted- Average Remaining Contractual Term |  |
Weighted- Average Remaining Contractual Term | 5 years 2 months 23 days |
Weighted- Average Remaining Contractual Term, Exercisable (in years) | 5 years 2 months 1 day |
Intrinsic value, options outstanding | $ 1,922 | $ 0
Intrinsic value, exercisable at end of year | 1,881 |
Aggregate intrinsic value of SSARs exercised | $ 1,100 |

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