BUSINESS AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Fair Value Accounting (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Assets (liabilities)
Deferred compensation plan assets	$ 5,122	$ 4,483
Recurring basis | Level 1
Assets (liabilities)
Pension plan assets	6,899	6,347
Deferred compensation plan assets	4,636	5,386
Recurring basis | Level 2
Assets (liabilities)
Foreign currency hedge contracts	39
Interest rate swaps, net/assets	220
Interest rate swaps/liabilities		$ (1,889)
Recurring basis | Level 3
Assets (liabilities)
Contingent consideration (Note 2)	$ (4,900)