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SIGNIFICANT ACCOUNTING POLICIES (Details - Revenue) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2019 | Sep. 30, 2018 | Sep. 30, 2019 | Sep. 30, 2018
Revenue from External Customer [Line Items] |  |  |  |
Total revenue | $ 292,692 | $ 242,148 | $ 853,338 | $ 717,935
Commercial insurance |  |  |  |
Revenue from External Customer [Line Items] |  |  |  |
Service fee revenue, net of contractual allowances and discounts | 163,152 | 135,445 | 475,064 | 397,193
Medicare |  |  |  |
Revenue from External Customer [Line Items] |  |  |  |
Service fee revenue, net of contractual allowances and discounts | 61,599 | 48,243 | 175,825 | 141,348
Medicaid |  |  |  |
Revenue from External Customer [Line Items] |  |  |  |
Service fee revenue, net of contractual allowances and discounts | 7,128 | 6,323 | 21,564 | 19,129
Workers' compensation/personal injury |  |  |  |
Revenue from External Customer [Line Items] |  |  |  |
Service fee revenue, net of contractual allowances and discounts | 10,865 | 8,810 | 32,950 | 25,714
Other patient revenue |  |  |  |
Revenue from External Customer [Line Items] |  |  |  |
Service fee revenue, net of contractual allowances and discounts | 6,085 | 6,205 | 17,947 | 18,318
Management fee revenue |  |  |  |
Revenue from External Customer [Line Items] |  |  |  |
Service fee revenue, net of contractual allowances and discounts | 1,792 | 3,615 | 5,662 | 11,237
Teleradiology and Software revenue |  |  |  |
Revenue from External Customer [Line Items] |  |  |  |
Service fee revenue, net of contractual allowances and discounts | 4,412 | 4,063 | 12,861 | 11,879
Other |  |  |  |
Revenue from External Customer [Line Items] |  |  |  |
Service fee revenue, net of contractual allowances and discounts | 6,875 | 4,848 | 20,878 | 16,318
Service fee revenue |  |  |  |
Revenue from External Customer [Line Items] |  |  |  |
Service fee revenue, net of contractual allowances and discounts | 261,908 | 217,552 | 762,751 | 641,136
Revenue under capitation arrangements |  |  |  |
Revenue from External Customer [Line Items] |  |  |  |
Service fee revenue, net of contractual allowances and discounts | $ 30,784 | $ 24,596 | $ 90,587 | $ 76,799

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