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RELATED PARTY TRANSACTIONS (NARRATIVE) (Details) - USD ($) $ in Thousands | 3 Months Ended
--- | ---
Mar. 31, 2023 | Mar. 31, 2022
Related Party Transaction Line Items |  |
Sales Revenue Services Net | $ 633,286 | $ 588,726
Airmax [Member] |  |
Related Party Transaction Line Items |  |
Purchases from Related Party | 300 | 100
Accounts Payable Due from Related Party | 143 |
Willis Towers Watson [Member] |  |
Related Party Transaction Line Items |  |
Purchases from Related Party | $ 800 | $ 800

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