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OPTIONS AND AWARDS - Compensation Expense (Details) - USD ($) shares in Thousands, $ in Thousands | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2024 | Jun. 30, 2023 | Jun. 30, 2024 | Jun. 30, 2023
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items] |  |  |  |
Stock-based compensation expense related to stock options | $ 8,978 | $ 8,881 | $ 17,209 | $ 15,454
Share-based compensation, options outstanding, weighted average remaining contractual term |  |  | 6 years 9 months 18 days |
Stock-based compensation expense related to stock options |  |  |  |
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items] |  |  |  |
Stock-based compensation expense related to stock options | 5,518 | 4,963 | $ 10,506 | 8,388
Share-based compensation, nonvested awards, cost not yet recognized | $ 75,356 |  | $ 75,356 |
Share-based compensation, nonvested awards, cost not yet recognized, period for recognition |  |  | 3 years 10 months 24 days |
Share-based compensation, nonvested awards (in shares) | 2,086 |  | 2,086 |
Share-based compensation, options expected to vest, number (in shares) | 1,916 |  | 1,916 |
Stock-based compensation expense related to restricted stock awards |  |  |  |
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items] |  |  |  |
Stock-based compensation expense related to stock options | $ 2,936 | 3,481 | $ 5,663 | 6,209
Share-based compensation, nonvested awards, cost not yet recognized | 31,859 |  | $ 31,859 |
Share-based compensation, nonvested awards, cost not yet recognized, period for recognition |  |  | 3 years 7 months 6 days |
Stock-based compensation expense related to restricted stock awards to non-employee directors |  |  |  |
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items] |  |  |  |
Stock-based compensation expense related to stock options | $ 524 | $ 437 | $ 1,040 | $ 857

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- Definition Amount of expense for award under share-based payment arrangement. Excludes amount capitalized. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 718 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SAB Topic 14.F) -Publisher FASB -URI https://asc.fasb.org/1943274/2147479830/718-10-S99-1 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 718 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (h)(1)(i) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480429/718-10-50-2 + Details
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