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ACCOUNTS RECEIVABLE AND SIGNIFICANT CLIENTS(NARRATIVE) (Details) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2022 | Sep. 30, 2021 | Sep. 30, 2022 | Sep. 30, 2021
Entity Wide Revenue Major Customer Line Items |  |  |  |
Revenue. | $ 592,453 | $ 566,734 | $ 1,785,429 | $ 1,660,747
Revenue | Customer Concentration Risk | Minimum |  |  |  |
Entity Wide Revenue Major Customer Line Items |  |  |  |
Revenue. |  |  | $ 100,000 |
Revenue | Customer Concentration Risk | Financial Services Client |  |  |  |
Entity Wide Revenue Major Customer Line Items |  |  |  |
Concentration Risk, Customer |  |  |  | one
Concentration risk percentage |  |  | 7.40% | 13.30%
Revenue | Customer Concentration Risk | Automotive Industry Client |  |  |  |
Entity Wide Revenue Major Customer Line Items |  |  |  |
Concentration Risk, Customer |  |  | one |
Concentration risk percentage |  |  | 10.50% | 9.10%

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