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CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS (Unaudited) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2019 | Sep. 30, 2018 | Sep. 30, 2019 | Sep. 30, 2018
REVENUE |  |  |  |
Total revenue | $ 292,692 | $ 242,148 | $ 853,338 | $ 717,935
OPERATING EXPENSES |  |  |  |
Cost of operations, excluding depreciation and amortization | 254,383 | 208,511 | 743,997 | 634,200
Depreciation and amortization | 20,490 | 17,480 | 60,193 | 53,422
Loss (gain) on sale and disposal of equipment and other | 917 | (373) | 1,990 | (2,204)
Severance costs | 52 | 82 | 1,054 | 1,087
Total operating expenses | 275,842 | 225,700 | 807,234 | 686,505
INCOME FROM OPERATIONS | 16,850 | 16,448 | 46,104 | 31,430
OTHER INCOME AND EXPENSES |  |  |  |
Interest expense | 11,895 | 10,663 | 36,589 | 31,343
Equity in earnings of joint ventures | (1,955) | (2,822) | (6,072) | (9,547)
Other expenses | 2 | 7 | 1,271 | 13
Total other expenses | 9,942 | 7,848 | 31,788 | 21,809
INCOME BEFORE INCOME TAXES | 6,908 | 8,600 | 14,316 | 9,621
Provision for income taxes | (1,816) | (2,827) | (3,556) | (2,835)
NET INCOME | 5,092 | 5,773 | 10,760 | 6,786
Net income attributable to noncontrolling interests | 1,897 | 734 | 6,400 | 3,679
NET INCOME ATTRIBUTABLE TO RADNET, INC. COMMON STOCKHOLDERS | $ 3,195 | $ 5,039 | $ 4,360 | $ 3,107
BASIC NET INCOME PER SHARE ATTRIBUTABLE TO RADNET, INC. COMMON STOCKHOLDERS (in dollars per share) | $ 0.06 | $ 0.10 | $ 0.09 | $ 0.06
DILUTED NET INCOME PER SHARE ATTRIBUTABLE TO RADNET, INC. COMMON STOCKHOLDERS (in dollars per share) | $ 0.06 | $ 0.10 | $ 0.09 | $ 0.06
WEIGHTED AVERAGE SHARES OUTSTANDING Basic (in shares) | 49,807,460 | 48,010,726 | 49,597,138 | 47,937,215
WEIGHTED AVERAGE SHARES OUTSTANDING Diluted (in shares) | 50,360,360 | 48,615,392 | 50,113,306 | 48,481,305
Service fee revenue |  |  |  |
REVENUE |  |  |  |
Service fee revenue, net of contractual allowances and discounts | $ 261,908 | $ 217,552 | $ 762,751 | $ 641,136
Revenue under capitation arrangements |  |  |  |
REVENUE |  |  |  |
Service fee revenue, net of contractual allowances and discounts | $ 30,784 | $ 24,596 | $ 90,587 | $ 76,799

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