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DEBT - Convertible Senior Notes (Details) $ / shares in Units, $ in Thousands |  | 1 Months Ended | 12 Months Ended
--- | --- | --- | ---
Feb. 13, 2020 USD ($) D $ / shares | Dec. 31, 2020 USD ($) | Dec. 31, 2022 D | Dec. 31, 2020 USD ($)
Debt |  |  |  |
Equity component of transaction costs for 2020 Convertible Notes |  |  |  | $ 1,773
Convertible senior notes |  |  |  |
Debt |  |  |  |
Interest rate (as a percent) | 2.625% |  |  |
Aggregate principal amount | $ 143,750 |  |  |
Total debt issuance cost | 5,473 |  |  |
Equity component of transaction costs for 2020 Convertible Notes | $ 1,773 |  |  |
Amortization period of debt discount | 6 years | 6 years |  |
Initial conversion rate | 34.2618 |  |  |
Initial conversion price | $ / shares | $ 29.19 |  |  |
Conversion, threshold percentage of stock price trigger | 130.00% |  |  |
Conversion, threshold trading days | D | 20 |  |  |
Conversion, threshold consecutive trading days | D | 30 |  |  |
Consecutive business days | D | 5 |  |  |
Measurement period | D | 10 |  |  |
Threshold percentage to product of sale price of common stock and conversion rate | 98.00% |  |  |
Default period | 30 days |  |  |
Threshold amount of money borrowed | $ 20,000 |  |  |
Initial carrying amount of the liability component |  | $ 97,200 |  | 97,200
Carrying amount of the equity component |  | $ 46,550 |  | $ 46,550
Convertible senior notes | Conversion of convertible debt after the calendar quarter ending on March 31, 2020 |  |  |  |
Debt |  |  |  |
Debt discount | $ 3,700 |  |  |
Conversion, threshold percentage of stock price trigger |  |  | 130.00% |
Conversion, threshold trading days | D |  |  | 20 |
Conversion, threshold consecutive trading days | D |  |  | 30 |

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