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STOCK-BASED INCENTIVE PLANS - OUTSTANDING STOCK OPTIONS (Details) - $ / shares | 12 Months Ended
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Dec. 31, 2023 | Dec. 31, 2021
Outstanding stock options |  |
Exercised (in shares) |  | 0
Vested |  |
Outstanding stock options |  |
Stock options, number of shares outstanding, beginning balance (in shares) | 1,653,000 |
Vested (in shares) | (781,000) |
Exercised (in shares) | (340,000) |
Stock options, number of shares outstanding, ending balance (in shares) | 2,094,000 |
Options, weighted average strike price |  |
Stock options, weighted average strike price, beginning balance (in dollars per share) | $ 38.83 |
Stock options, vested, weighted average strike price (in dollars per share) | 37.36 |
Stock options, exercised, weighted average strike price (in dollars per share) | 37.81 |
Stock options, weighted average strike price, ending balance (in dollars per share) | $ 38.45 |
Unvested |  |
Outstanding stock options |  |
Stock options, number of shares outstanding, beginning balance (in shares) | 1,075,000 |
Vested (in shares) | (781,000) |
Exercised (in shares) | 0 |
Stock options, number of shares outstanding, ending balance (in shares) | 294,000 |
Options, weighted average strike price |  |
Stock options, weighted average strike price, beginning balance (in dollars per share) | $ 36.82 |
Stock options, vested, weighted average strike price (in dollars per share) | 37.36 |
Stock options, exercised, weighted average strike price (in dollars per share) | 0 |
Stock options, weighted average strike price, ending balance (in dollars per share) | $ 35.37 |

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