FINANCIAL INSTRUMENTS AND FAIR VALUE MEASUREMENTS - Assets and Liabilities (Details) $ in Thousands	Dec. 31, 2023 USD ($)	Dec. 31, 2022 USD ($)
Liabilities:
Contingent consideration, noncurrent	$ 92,900	$ 112,000
Discount Rate | Valuation Technique, Discounted Cash Flow
Liabilities:
Measurement input	0.133	0.140
Recurring basis
Assets:
Assets	$ 100,091	$ 19,240
Liabilities:
Contingent consideration, noncurrent	92,900	112,000
Liabilities	92,900	112,000
Recurring basis | Cash and cash equivalents
Assets:
Money market funds	93,754	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	4,627	3,982
Interest rate swap	1,710	3,526
Recurring basis | Level 1
Assets:
Assets	98,381	15,714
Recurring basis | Level 1 | Cash and cash equivalents
Assets:
Money market funds	93,754	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	4,627	3,982
Recurring basis | Level 2
Assets:
Assets	1,710	3,526
Recurring basis | Level 2 | Other long-term assets
Assets:
Interest rate swap	1,710	3,526
Recurring basis | Level 3
Liabilities:
Contingent consideration, noncurrent	92,900	112,000
Liabilities	$ 92,900	$ 112,000