FAIR VALUE MEASUREMENTS (Schedule of Acquisition-Related Contingent Consideration Roll Forward) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Amount
Fair value, liability, recurring basis, unobservable input reconciliation, gain (loss), statement of income or comprehensive income [extensible enumeration]	Interest and other income/(loss), net
Level 3
Amount
Contingent consideration, beginning of period	$ 24,308	$ 23,114	$ 7,470
Changes in fair value of contingent consideration included in Interest and other income/(loss), net	2,814	11,101	8,782
Payment of contingent consideration for previously acquired businesses	(18,844)	(11,328)	(50,000)
Effect of net foreign currency exchange rate changes	22	(1,224)	(387)
Contingent consideration, end of period	23,150	24,308	23,114
Level 3 | PolSource
Amount
Acquisition date fair value of contingent consideration			35,400
Level 3 | CORE
Amount
Acquisition date fair value of contingent consideration			4,007
Level 3 | Emakina
Amount
Acquisition date fair value of contingent consideration			213
Level 3 | Other 2021 Acquisitions purchase accounting adjustments
Amount
Acquisition date fair value of contingent consideration			$ 17,629
Level 3 | 2022 Acquisitions purchase accounting adjustments
Amount
Acquisition date fair value of contingent consideration		$ 2,645
Level 3 | 2023 Acquisitions
Amount
Acquisition date fair value of contingent consideration	$ 14,850