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DEBT AND FINANCING ARRANGEMENTS - 2024 Convertible Senior Notes (Narrative) (Details) $ / shares in Units, $ in Millions |  |  | 3 Months Ended |
--- | --- | --- | --- | ---
Apr. 01, 2024 USD ($) numberOfDays $ / shares | Sep. 22, 2020 USD ($) numberOfDays $ / shares | Sep. 30, 2024 USD ($) $ / shares | Dec. 31, 2023 $ / shares
Debt Instrument [Line Items] |  |  |  |
Debt instrument, face amount |  | $ 230.0 |  |
Stated percentage |  | 1.00% |  |
Common stock, par value (in dollars per share) | $ / shares |  |  | $ 0.0001 | $ 0.0001
Threshold percentage of stock price trigger |  | 98.00% |  |
Threshold consecutive trading days | numberOfDays |  | 10,000 |  |
Conversion price (in dollars per share) | $ / shares |  | $ 85,140 |  |
2024 Convertible Senior Notes | Convertible Debt |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Debt instrument, face amount | $ 172.5 |  |  |
Stated percentage | 4.25% |  |  |
Debt instrument, face amount, additional principal available | $ 22.5 |  |  |
Conversion price (in dollars per share) | $ / shares | $ 18.02 |  |  |
Proceeds from issuance of 2024 Convertible Senior Notes | $ 166.8 |  | $ 169.3 |
2024 Convertible Senior Notes | Convertible Debt | Debt Conversion Terms One |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Threshold percentage of stock price trigger | 130.00% |  |  |
Threshold trading days | numberOfDays | 20 |  |  |
Threshold consecutive trading days | numberOfDays | 30 |  |  |
2024 Convertible Senior Notes | Convertible Debt | Debt Conversion Terms Two |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Threshold percentage of stock price trigger | 98.00% |  |  |
Threshold consecutive trading days | numberOfDays | 10,000 |  |  |
Debt instrument, consecutive business days after threshold trading days | 5 days |  |  |
2020 Convertible Senior Notes, net | Convertible Debt |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Debt instrument, repurchased face amount |  |  | $ 183.9 |

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