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FINANCIAL INSTRUMENTS AND FAIR VALUE MEASUREMENTS - Financial assets and liabilities measured at fair value (Details) - USD ($) $ in Thousands | 3 Months Ended |  |
--- | --- | --- | ---
Mar. 31, 2025 | Dec. 31, 2024 | Aug. 31, 2024
Assets and Liabilities Measured at Fair Value on a Recurring Basis |  |  |
Realized gain | $ 19 |  |
Money market funds | Fair Value, Recurring |  |  |
Assets and Liabilities Measured at Fair Value on a Recurring Basis |  |  |
Fair value assets | 246,020 | $ 276,374 |
Money market funds | Prices in active markets for identical assets (Level 1) | Fair Value, Recurring |  |  |
Assets and Liabilities Measured at Fair Value on a Recurring Basis |  |  |
Fair value assets | 246,020 | 276,374 |
Commercial paper | Fair Value, Recurring |  |  |
Assets and Liabilities Measured at Fair Value on a Recurring Basis |  |  |
Fair value assets |  | 4,920 |
Commercial paper | Significant other observable inputs (Level 2) | Fair Value, Recurring |  |  |
Assets and Liabilities Measured at Fair Value on a Recurring Basis |  |  |
Fair value assets |  | 4,920 |
Corporate bonds | Fair Value, Recurring |  |  |
Assets and Liabilities Measured at Fair Value on a Recurring Basis |  |  |
Fair value assets |  | 250 |
Corporate bonds | Significant other observable inputs (Level 2) | Fair Value, Recurring |  |  |
Assets and Liabilities Measured at Fair Value on a Recurring Basis |  |  |
Fair value assets |  | 250 |
U.S. Treasury securities | Fair Value, Recurring |  |  |
Assets and Liabilities Measured at Fair Value on a Recurring Basis |  |  |
Fair value assets |  | 5,983 |
U.S. Treasury securities | Significant other observable inputs (Level 2) | Fair Value, Recurring |  |  |
Assets and Liabilities Measured at Fair Value on a Recurring Basis |  |  |
Fair value assets |  | 5,983 |
Tellutax |  |  |
Assets and Liabilities Measured at Fair Value on a Recurring Basis |  |  |
Contingent consideration | 0 |  |
Ecosio | Cash Earn-outs |  |  |
Assets and Liabilities Measured at Fair Value on a Recurring Basis |  |  |
Contingent consideration | 76,100 | 74,400 | $ 71,000
Ecosio | Cash Earn-outs | Fair Value, Recurring |  |  |
Assets and Liabilities Measured at Fair Value on a Recurring Basis |  |  |
Contingent consideration | 76,100 | 74,400 |
Ecosio | Cash Earn-outs | Significant unobservable inputs (Level 3) | Fair Value, Recurring |  |  |
Assets and Liabilities Measured at Fair Value on a Recurring Basis |  |  |
Contingent consideration | 76,100 | 74,400 |
Ecosio | Stock Earn-outs |  |  |
Assets and Liabilities Measured at Fair Value on a Recurring Basis |  |  |
Contingent consideration | 31,700 | 48,100 | $ 34,000
Ecosio | Stock Earn-outs | Fair Value, Recurring |  |  |
Assets and Liabilities Measured at Fair Value on a Recurring Basis |  |  |
Contingent consideration | 31,700 | 48,100 |
Ecosio | Stock Earn-outs | Significant unobservable inputs (Level 3) | Fair Value, Recurring |  |  |
Assets and Liabilities Measured at Fair Value on a Recurring Basis |  |  |
Contingent consideration | $ 31,700 | $ 48,100 |

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