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STOCKHOLDERS' EQUITY AND SHARE-BASED COMPENSATION - Narrative (Details) - USD ($) $ / shares in Units, $ in Thousands | 1 Months Ended | 12 Months Ended |  |  |  |  |  |
--- | --- | --- | --- | --- | --- | --- | --- | ---
May 31, 2019 | Dec. 31, 2024 | Dec. 31, 2023 | Dec. 31, 2022 | May 31, 2024 | May 31, 2023 | Nov. 30, 2022 | May 31, 2022 | Dec. 31, 2018 | Dec. 31, 2017
Stockholders' equity and share-based compensation |  |  |  |  |  |  |  |  |  |
Preferred Stock, shares authorized |  | 10,000,000 | 10,000,000 |  |  |  |  |  |  |
Preferred Stock, par value |  | $ 0.01 | $ 0.01 |  |  |  |  |  |  |
Preferred Stock, shares outstanding |  | 0 | 0 |  |  |  |  |  |  |
Repurchase of common stock, authorized amount |  |  |  |  | $ 40,000 |  | $ 25,000 |  | $ 25,000 | $ 30,000
Shares repurchased, value |  | $ 12,597 | $ 5,446 |  |  |  |  |  |  |
Aggregate shares repurchased |  | 3,090,000 | 2,902,000 |  |  |  |  |  |  |
2007 Stock Incentive Plan |  |  |  |  |  |  |  |  |  |
Stockholders' equity and share-based compensation |  |  |  |  |  |  |  |  |  |
Term of approved stock-based compensation plan | 10 years |  |  |  |  |  |  |  |  |
2020 Stock Incentive Plan |  |  |  |  |  |  |  |  |  |
Stockholders' equity and share-based compensation |  |  |  |  |  |  |  |  |  |
Shares authorized for issuance under stock incentive plan |  |  |  |  |  | 1,253,000 |  |  |  |
Shares available for future grant |  | 119,000 |  |  |  |  |  |  |  |
1997 Employee Stock Purchase Plan |  |  |  |  |  |  |  |  |  |
Stockholders' equity and share-based compensation |  |  |  |  |  |  |  |  |  |
Purchase price under employee stock purchase plan as a percentage of price as of the last day of each six month offering period |  | 95.00% |  |  |  |  |  |  |  |
Common stock reserved for issuance |  |  |  |  |  |  |  | 1,303,000 |  |
Share purchased under employee stock purchase plan |  | 1,239,000 |  |  |  |  |  |  |  |
Nonvested Stock Units |  |  |  |  |  |  |  |  |  |
Stockholders' equity and share-based compensation |  |  |  |  |  |  |  |  |  |
Weighted-average grant-date fair values of nonvested stock awards granted |  | $ 67.83 | $ 62.5 | $ 53.5 |  |  |  |  |  |
Total fair values of nonvested stock awards that vested |  | $ 11,264 | $ 9,700 | $ 7,202 |  |  |  |  |  |
Unearned compensation cost |  | $ 22,404 |  |  |  |  |  |  |  |
Unrecognized compensation costs, weighted average period of recognition |  | 2 years 10 months 24 days |  |  |  |  |  |  |  |
Aggregate intrinsic value |  | $ 31,493 |  |  |  |  |  |  |  |
Share repurchase program, aggregate |  |  |  |  |  |  |  |  |  |
Stockholders' equity and share-based compensation |  |  |  |  |  |  |  |  |  |
Repurchase of common stock, authorized amount |  | $ 120,000 |  |  |  |  |  |  |  |
Number of shares repurchased |  | 188,000 | 129,000 | 0 |  |  |  |  |  |
Shares repurchased, value |  | $ 12,597 | $ 5,446 |  |  |  |  |  |  |
Excise tax rate on certain stock repurchases |  | 1.00% | 1.00% |  |  |  |  |  |  |
Aggregate shares repurchased |  | 2,916,000 |  |  |  |  |  |  |  |
Aggregate shares repurchased, value |  | $ 60,315 |  |  |  |  |  |  |  |
Maximum | 2007 Stock Incentive Plan |  |  |  |  |  |  |  |  |  |
Stockholders' equity and share-based compensation |  |  |  |  |  |  |  |  |  |
Shares authorized for issuance under stock incentive plan | 1,900,000 |  |  |  |  |  |  |  |  |
Maximum | Nonvested Stock Units |  |  |  |  |  |  |  |  |  |
Stockholders' equity and share-based compensation |  |  |  |  |  |  |  |  |  |
Vesting period |  | 4 years | 4 years | 4 years |  |  |  |  |  |
Maximum | Share repurchase program, aggregate |  |  |  |  |  |  |  |  |  |
Stockholders' equity and share-based compensation |  |  |  |  |  |  |  |  |  |
Approximate dollar value of shares that may yet be purchased |  | $ 59,685 |  |  |  |  |  |  |  |

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