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RESTRUCTURING ACTIVITIES (Details) $ in Thousands |  |  | 1 Months Ended | 3 Months Ended | 12 Months Ended | 15 Months Ended
--- | --- | --- | --- | --- | --- | ---
Apr. 06, 2023 USD ($) employee | Mar. 24, 2023 USD ($) employee | Sep. 30, 2023 USD ($) employee | Dec. 31, 2022 USD ($) employee | Jun. 30, 2022 employee | Mar. 31, 2022 USD ($) employee | Mar. 31, 2024 | Dec. 31, 2023 USD ($) | Dec. 31, 2022 USD ($) | Dec. 31, 2021 USD ($) | Jun. 30, 2024
Restructuring Cost and Reserve [Line Items] |  |  |  |  |  |  |  |  |  |  |
Restructuring and severance |  |  |  |  |  |  |  | $ 10,118 | $ 4,428 | $ 53 |
Restructuring Reserve [Roll Forward] |  |  |  |  |  |  |  |  |  |  |
Income Statement Impact |  |  |  |  |  |  |  | 10,118 | 4,428 | 53 |
2022 And 2023 Reduction Action |  |  |  |  |  |  |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |  |  |  |  |  |  |
Restructuring and severance |  |  |  |  |  |  |  | 8,283 |  |  |
Restructuring Reserve [Roll Forward] |  |  |  |  |  |  |  |  |  |  |
Accrued Balance, beginning of period |  |  |  |  |  |  |  | 304 |  |  |
Income Statement Impact |  |  |  |  |  |  |  | 8,283 |  |  |
Payments |  |  |  |  |  |  |  | (6,607) |  |  |
Non-Cash |  |  |  |  |  |  |  | (1,271) |  |  |
Accrued Balance, end of period |  |  |  | $ 304 |  |  |  | 709 | 304 |  |
Q3 2023 action |  |  |  |  |  |  |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |  |  |  |  |  |  |
Number of employee positions estimated to be eliminated in workforce reduction | employee |  |  | 14 |  |  |  |  |  |  |  |
Restructuring and severance |  |  | $ 900 |  |  |  |  |  |  |  |
Restructuring Reserve [Roll Forward] |  |  |  |  |  |  |  |  |  |  |
Income Statement Impact |  |  | 900 |  |  |  |  |  |  |  |
Q2 2023 action |  |  |  |  |  |  |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |  |  |  |  |  |  |
Number of employee positions estimated to be eliminated in workforce reduction | employee | 197 |  |  |  |  |  |  |  |  |  |
Restructuring and severance | $ 2,100 |  |  |  |  |  |  |  |  |  |
Restructuring Reserve [Roll Forward] |  |  |  |  |  |  |  |  |  |  |
Income Statement Impact | $ 2,100 |  |  |  |  |  |  |  |  |  |
Q2 2023 action | Forecast |  |  |  |  |  |  |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |  |  |  |  |  |  |
Percentage of workforce eliminated |  |  |  |  |  |  | 18.00% |  |  |  |
Q1 2023 action |  |  |  |  |  |  |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |  |  |  |  |  |  |
Number of employee positions estimated to be eliminated in workforce reduction | employee |  | 162 |  |  |  |  |  |  |  |  |
Restructuring and severance |  | $ 5,300 |  |  |  |  |  |  |  |  |
Restructuring Reserve [Roll Forward] |  |  |  |  |  |  |  |  |  |  |
Income Statement Impact |  | 5,300 |  |  |  |  |  |  |  |  |
Q1 2023 action | Forecast |  |  |  |  |  |  |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |  |  |  |  |  |  |
Percentage of workforce eliminated |  |  |  |  |  |  |  |  |  |  | 13.00%
2022 action |  |  |  |  |  |  |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |  |  |  |  |  |  |
Restructuring and severance |  |  |  |  |  |  |  |  | 4,400 |  |
Number of employees eliminated in workforce reduction | employee |  |  |  | 50 | 25 | 75 |  |  |  |  |
Restructuring Reserve [Roll Forward] |  |  |  |  |  |  |  |  |  |  |
Accrued Balance, beginning of period |  |  |  |  |  | $ 0 |  | 304 | 0 |  |
Income Statement Impact |  |  |  |  |  |  |  |  | 4,400 |  |
Payments |  |  |  |  |  |  |  |  | (3,041) |  |
Non-Cash |  |  |  |  |  |  |  |  | (1,083) |  |
Accrued Balance, end of period |  |  |  | $ 304 |  |  |  |  | 304 | 0 |
Employee separation payments | Q3 2023 action |  |  |  |  |  |  |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |  |  |  |  |  |  |
Restructuring and severance |  |  | 700 |  |  |  |  | 683 |  |  |
Restructuring Reserve [Roll Forward] |  |  |  |  |  |  |  |  |  |  |
Accrued Balance, beginning of period |  |  |  |  |  |  |  | 0 |  |  |
Income Statement Impact |  |  | 700 |  |  |  |  | 683 |  |  |
Payments |  |  |  |  |  |  |  | (429) |  |  |
Non-Cash |  |  |  |  |  |  |  | 0 |  |  |
Accrued Balance, end of period |  |  |  | 0 |  |  |  | 254 | 0 |  |
Employee separation payments | Q2 2023 action |  |  |  |  |  |  |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |  |  |  |  |  |  |
Restructuring and severance |  |  |  |  |  |  |  | 2,063 |  |  |
Restructuring Reserve [Roll Forward] |  |  |  |  |  |  |  |  |  |  |
Accrued Balance, beginning of period |  |  |  |  |  |  |  | 0 |  |  |
Income Statement Impact |  |  |  |  |  |  |  | 2,063 |  |  |
Payments |  |  |  |  |  |  |  | (2,029) |  |  |
Non-Cash |  |  |  |  |  |  |  | 0 |  |  |
Accrued Balance, end of period |  |  |  | 0 |  |  |  | 34 | 0 |  |
Employee separation payments | Q1 2023 action |  |  |  |  |  |  |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |  |  |  |  |  |  |
Restructuring and severance |  | 4,300 |  |  |  |  |  | 4,253 |  |  |
Restructuring Reserve [Roll Forward] |  |  |  |  |  |  |  |  |  |  |
Accrued Balance, beginning of period |  |  |  |  |  |  |  | 0 |  |  |
Income Statement Impact |  | 4,300 |  |  |  |  |  | 4,253 |  |  |
Payments |  |  |  |  |  |  |  | (3,832) |  |  |
Non-Cash |  |  |  |  |  |  |  | 0 |  |  |
Accrued Balance, end of period |  |  |  | 0 |  |  |  | 421 | 0 |  |
Employee separation payments | 2022 action |  |  |  |  |  |  |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |  |  |  |  |  |  |
Restructuring and severance |  |  |  |  |  |  |  | 13 | 3,345 |  |
Restructuring Reserve [Roll Forward] |  |  |  |  |  |  |  |  |  |  |
Accrued Balance, beginning of period |  |  |  |  |  | 0 |  | 304 | 0 |  |
Income Statement Impact |  |  |  |  |  |  |  | 13 | 3,345 |  |
Payments |  |  |  |  |  |  |  | (317) | (3,041) |  |
Non-Cash |  |  |  |  |  |  |  | 0 | 0 |  |
Accrued Balance, end of period |  |  |  | 304 |  |  |  | 0 | 304 | 0 |
Non-cash compensation | Q3 2023 action |  |  |  |  |  |  |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |  |  |  |  |  |  |
Restructuring and severance |  |  | 200 |  |  |  |  | 205 |  |  |
Restructuring Reserve [Roll Forward] |  |  |  |  |  |  |  |  |  |  |
Accrued Balance, beginning of period |  |  |  |  |  |  |  | 0 |  |  |
Income Statement Impact |  |  | $ 200 |  |  |  |  | 205 |  |  |
Payments |  |  |  |  |  |  |  | 0 |  |  |
Non-Cash |  |  |  |  |  |  |  | (205) |  |  |
Accrued Balance, end of period |  |  |  | 0 |  |  |  | 0 | 0 |  |
Non-cash compensation | Q1 2023 action |  |  |  |  |  |  |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |  |  |  |  |  |  |
Restructuring and severance |  | 1,000 |  |  |  |  |  | 1,066 |  |  |
Restructuring Reserve [Roll Forward] |  |  |  |  |  |  |  |  |  |  |
Accrued Balance, beginning of period |  |  |  |  |  |  |  | 0 |  |  |
Income Statement Impact |  | $ 1,000 |  |  |  |  |  | 1,066 |  |  |
Payments |  |  |  |  |  |  |  | 0 |  |  |
Non-Cash |  |  |  |  |  |  |  | (1,066) |  |  |
Accrued Balance, end of period |  |  |  | 0 |  |  |  | 0 | 0 |  |
Non-cash compensation | 2022 action |  |  |  |  |  |  |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |  |  |  |  |  |  |
Restructuring and severance |  |  |  |  |  |  |  |  | 1,083 |  |
Restructuring Reserve [Roll Forward] |  |  |  |  |  |  |  |  |  |  |
Accrued Balance, beginning of period |  |  |  |  |  | $ 0 |  | $ 0 | 0 |  |
Income Statement Impact |  |  |  |  |  |  |  |  | 1,083 |  |
Payments |  |  |  |  |  |  |  |  | 0 |  |
Non-Cash |  |  |  |  |  |  |  |  | (1,083) |  |
Accrued Balance, end of period |  |  |  | $ 0 |  |  |  |  | $ 0 | $ 0 |

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