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v3.19.2

RELATED PARTY TRANSACTIONS (NARRATIVE) (Details) - USD ($) | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2019 | Jun. 30, 2018 | Jun. 30, 2019 | Jun. 30, 2018
Related Party Transaction Line Items |  |  |  |
Sales Revenue Services Net | $ 392,515,000 | $ 349,853,000 | $ 786,871,000 | $ 725,102,000
Airmax [Member] |  |  |  |
Related Party Transaction Line Items |  |  |  |
Purchases from Related Party |  |  | 600,000 | 700,000
Accounts Payable Due from Related Party | $ 257,000 |  | 257,000 |
Convercent [Member] |  |  |  |
Related Party Transaction Line Items |  |  |  |
Purchases from Related Party |  |  | 30,000 | 30,000
CafeX [Member] |  |  |  |
Related Party Transaction Line Items |  |  |  |
Purchases from Related Party |  |  | $ 33,000 | 29,000
Motif [Member] |  |  |  |
Related Party Transaction Line Items |  |  |  |
Lease Expiration Date |  |  | Mar. 31, 2019 |
Welltok |  |  |  |
Related Party Transaction Line Items |  |  |  |
Sales Revenue Services Net |  |  | $ 2,800,000 | $ 2,000,000

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