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STOCK-BASED COMPENSATION PLANS - Stock Options Activity (Details) - USD ($) $ / shares in Units, $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2023 | Dec. 31, 2022
Number of Stock Options Outstanding |  |
Beginning balance (in shares) | 47,327 | 57,964
Exercised (in shares) | (8,166) | (10,637)
Expired (in shares) | (3,323) |
Ending balance (in shares) | 35,838 | 47,327
Ending vested and expected to vest (in shares) | 35,838 | 47,327
Exercisable, outstanding (in shares) | 35,838 | 47,327
Weighted Average Exercise Price |  |
Beginning balance (usd per share) | $ 21.47 | $ 20.89
Exercised (usd per share) | 20.64 | 18.29
Expired (usd per share) | 16.99 |
Ending balance (usd per share) | 22.08 | 21.47
Ending vested and expected to vest (usd per share) | 22.08 | 21.47
Exercisable (usd per share) | $ 22.08 | $ 21.47
Aggregate Intrinsic Value (in thousands) |  |
Value of ending outstanding balance | $ 261 | $ 500
Ending vested and expected to vest | 261 | 500
Exercisable, aggregate intrinsic value | $ 261 | $ 500

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