FINANCIAL INSTRUMENTS AND FAIR VALUE MEASUREMENTS - Assets and Liabilities (Details) $ in Thousands	Jun. 30, 2023 USD ($)	Dec. 31, 2022 USD ($)
Discount Rate | Valuation Technique, Discounted Cash Flow
Liabilities:
Measurement input	0.142	0.140
Recurring basis
Assets:
Assets	$ 33,102	$ 19,240
Liabilities:
Liabilities	117,040	112,000
Recurring basis | Cash and cash equivalents
Assets:
Money market funds	25,988	11,732
Recurring basis | Other long-term assets
Assets:
Equity, bond, and money market mutual funds held in trust related to the Voluntary Savings Plan	4,159	3,982
Interest rate swap	2,955	3,526
Recurring basis | Other long-term liabilities
Liabilities:
Contingent consideration	117,040	112,000
Recurring basis | Level 1
Assets:
Assets	30,147	15,714
Recurring basis | Level 1 | Cash and cash equivalents
Assets:
Money market funds	25,988	11,732
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	4,159	3,982
Recurring basis | Level 2
Assets:
Assets	2,955	3,526
Recurring basis | Level 2 | Other long-term assets
Assets:
Interest rate swap	2,955	3,526
Recurring basis | Level 3
Liabilities:
Liabilities	117,040	112,000
Recurring basis | Level 3 | Other long-term liabilities
Liabilities:
Contingent consideration	$ 117,040	$ 112,000