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FINANCIAL INSTRUMENTS AND FAIR VALUE MEASUREMENTS - Assets and Liabilities (Details) $ in Thousands | Dec. 31, 2022 USD ($) | Dec. 31, 2021 USD ($)
--- | --- | ---
Discount Rate | Valuation Technique, Discounted Cash Flow |  |
Liabilities: |  |
Measurement input | 0.140 | 0.090
Recurring basis |  |
Assets: |  |
Assets | $ 19,240 | $ 8,322
Liabilities: |  |
Liabilities | 112,000 | 94,155
Recurring basis | Cash and cash equivalents |  |
Assets: |  |
Money market funds | 11,732 | 3,600
Recurring basis | Other long-term assets |  |
Assets: |  |
Equity, bond, and money market mutual funds held in trust related to the Voluntary Savings Plan | 3,982 | 3,848
Interest rate swap | 3,526 | 874
Recurring basis | Other long-term liabilities |  |
Liabilities: |  |
Interest rate swap |  | 455
Contingent consideration | 112,000 | 93,700
Recurring basis | Level 1 |  |
Assets: |  |
Assets | 15,714 | 7,448
Recurring basis | Level 1 | Cash and cash equivalents |  |
Assets: |  |
Money market funds | 11,732 | 3,600
Recurring basis | Level 1 | Other long-term assets |  |
Assets: |  |
Equity, bond, and money market mutual funds held in trust related to the Voluntary Savings Plan | 3,982 | 3,848
Recurring basis | Level 2 |  |
Assets: |  |
Assets | 3,526 | 874
Liabilities: |  |
Liabilities |  | 455
Recurring basis | Level 2 | Other long-term assets |  |
Assets: |  |
Interest rate swap | 3,526 | 874
Recurring basis | Level 2 | Other long-term liabilities |  |
Liabilities: |  |
Interest rate swap |  | 455
Recurring basis | Level 3 |  |
Liabilities: |  |
Liabilities | 112,000 | 93,700
Recurring basis | Level 3 | Other long-term liabilities |  |
Liabilities: |  |
Contingent consideration | $ 112,000 | $ 93,700

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