DERIVATIVES (INCOME STATEMENT CLASSIFICATION) (Details) - USD ($) $ in Thousands	3 Months Ended
Mar. 31, 2023	Mar. 31, 2022
Derivative Instruments, Gain (Loss) [Line Items]
Sales Revenue Services Net	$ 633,286	$ 588,726
Other nonoperating income expense	655	1,260
Designated as Hedging Instruments [Member] \| Foreign Exchange [Member] \| Cash Flow [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Amount of gain or (loss) recognized in other comprehensive income (loss) - effective portion, net of tax:	384	239
Designated as Hedging Instruments [Member] \| Foreign Exchange [Member] \| Cash Flow [Member] \| Reclassification from accumulated other comprehensive income \| Revenue
Derivative Instruments, Gain (Loss) [Line Items]
Sales Revenue Services Net	518	323
Not Designated as Hedging Instruments [Member] \| Foreign Exchange [Member] \| Fair Value [Member] \| Other income (expense), net
Derivative Instruments, Gain (Loss) [Line Items]
Other nonoperating income expense	$ 1,400	$ 299

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