FAIR VALUE OF FINANCIAL ASSETS AND LIABILITIES - Reconciliation of Beginning and Ending Balances (Details) - Fair Value, Measurements, Recurring - Fair Value, Inputs, Level 3 - Contingent Consideration Liability $ in Thousands	3 Months Ended
	Mar. 31, 2022 USD ($)
Contingent Liability for Accrued Consideration
Beginning balance	$ 905
Acquisitions and settlements
Acquisitions (Note 13)	2,689
Settlements	0
Total remeasurement adjustments:
Changes in fair value recorded in other (income) expense, net	531
Ending Balance	4,125
The amount of total (gains) or losses for the quarter included in earnings or changes to net assets, attributable to changes in unrealized losses relating to liabilities still held at March 31, 2022.	$ 531