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BUSINESS INFORMATION (Details) $ in Thousands | 3 Months Ended | 6 Months Ended |
--- | --- | --- | ---
Jun. 30, 2017 USD ($) client | Jun. 30, 2016 USD ($) client | Jun. 30, 2017 USD ($) client | Jun. 30, 2016 USD ($) client | Dec. 31, 2016 USD ($)
Business information |  |  |  |  |
Total revenues | $ 172,149 | $ 131,725 | $ 345,407 | $ 258,089 |
Total assets | $ 627,806 |  | $ 627,806 |  | $ 598,800
Client | Revenue |  |  |  |  |
Business information |  |  |  |  |
Number of clients | client | 0 | 0 | 0 | 0 |
United States |  |  |  |  |
Business information |  |  |  |  |
Total revenues | $ 150,704 | $ 106,219 | $ 289,106 | $ 212,952 |
Total assets | 540,819 |  | 540,819 |  | 506,748
Europe |  |  |  |  |
Business information |  |  |  |  |
Total revenues | 16,637 | 13,328 | 38,656 | 24,122 |
Total assets | 27,477 |  | 27,477 |  | 31,341
Rest Of World |  |  |  |  |
Business information |  |  |  |  |
Total revenues | 4,808 | $ 12,178 | 17,645 | $ 21,015 |
Total assets | $ 59,510 |  | $ 59,510 |  | $ 60,711

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