FINANCIAL INSTRUMENTS AND FAIR VALUE MEASUREMENTS - Debt (Details) $ in Thousands	Sep. 30, 2022 USD ($)	Dec. 31, 2021 USD ($)
Fair value disclosure
Outstanding withdrawal liability	$ 20,300
Accrued expenses
Fair value disclosure
Outstanding withdrawal liability	700
Other long-term liabilities
Fair value disclosure
Outstanding withdrawal liability	19,600
Carrying value
Fair value disclosure
Financial instruments	273,589	$ 246,299
Fair value disclosure
Fair value disclosure
Financial instruments	263,287	249,458
Credit Facility | Carrying value | Level 2
Fair value disclosure
Financial instruments	50,000	50,000
Credit Facility | Fair value disclosure | Level 2
Fair value disclosure
Financial instruments	50,000	50,000
Notes payable | Carrying value | Level 2
Fair value disclosure
Financial instruments	203,319	175,530
Notes payable | Fair value disclosure | Level 2
Fair value disclosure
Financial instruments	$ 194,138	$ 175,937
New England Pension Fund withdrawal liability | Discount Rate
Fair value disclosure
Measurement input	5.2	3.1
New England Pension Fund withdrawal liability | Carrying value | Level 2
Fair value disclosure
Financial instruments	$ 20,270	$ 20,769
New England Pension Fund withdrawal liability | Fair value disclosure | Level 2
Fair value disclosure
Financial instruments	$ 19,149	$ 23,521