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CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2021 | Dec. 31, 2020 | Dec. 31, 2019
REVENUE |  |  |
Service fee revenue | $ 1,315,077 | $ 1,071,840 | $ 1,154,179
Provider relief funding | 9,110 | 26,264 | 0
OPERATING EXPENSES |  |  |
Cost of operations, excluding depreciation and amortization | 1,123,274 | 965,902 | 999,692
Lease abandonment charges | 19,675 | 0 | 0
Depreciation and amortization | 96,694 | 86,795 | 80,607
Loss on sale and disposal of equipment and other | 1,246 | 1,200 | 2,383
Loss on impairment | 0 | 4,170 | 0
Severance costs | 744 | 4,353 | 1,619
Total operating expenses | 1,241,633 | 1,062,420 | 1,084,301
INCOME FROM OPERATIONS | 82,554 | 35,684 | 69,878
OTHER INCOME AND EXPENSES |  |  |
Interest expense | 48,830 | 45,882 | 48,044
Equity in earnings of joint ventures | (10,967) | (7,945) | (8,350)
Non-cash change in fair value of interest rate hedge | (21,670) | 2,528 | 0
Gain on re-measurement of pre-existing interest | 0 | 0 | (768)
Loss on extinguishment of debt | 6,044 | (4,047) | 0
Other expenses | 1,438 | 120 | 1,283
Total other expenses | 23,675 | 36,538 | 40,209
INCOME (LOSS) BEFORE INCOME TAXES | 58,879 | (854) | 29,669
Provision for income taxes | (14,560) | (895) | (6,229)
NET INCOME (LOSS) | 44,319 | (1,749) | 23,440
Net income attributable to noncontrolling interests | 19,592 | 13,091 | 8,684
NET INCOME (LOSS) ATTRIBUTABLE TO RADNET, INC. COMMON STOCKHOLDERS | $ 24,727 | $ (14,840) | $ 14,756
BASIC NET INCOME (LOSS) PER SHARE ATTRIBUTABLE TO RADNET, INC. COMMON STOCKHOLDERS (in dollars per share) | $ 0.47 | $ (0.29) | $ 0.30
DILUTED NET INCOME (LOSS) PER SHARE ATTRIBUTABLE TO RADNET, INC. COMMON STOCKHOLDERS (in dollars per share) | $ 0.46 | $ (0.29) | $ 0.29
WEIGHTED AVERAGE SHARES OUTSTANDING |  |  |
Basic (in shares) | 52,496,679 | 50,891,791 | 49,674,858
Diluted (in shares) | 53,421,033 | 50,891,791 | 50,244,006
Service fee revenue |  |  |
REVENUE |  |  |
Service fee revenue | $ 1,166,743 | $ 931,722 | $ 1,028,236
Revenue under capitation arrangements |  |  |
REVENUE |  |  |
Service fee revenue | $ 148,334 | $ 140,118 | $ 125,943

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