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CONSOLIDATED STATEMENTS OF INCOME (LOSS) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2020 | Sep. 30, 2019 | Sep. 30, 2020 | Sep. 30, 2019
Interest Income |  |  |  |
Residential loans | $ 44,921 | $ 77,070 | $ 179,331 | $ 230,308
Business purpose residential loans | 55,637 | 5,446 | 161,710 | 12,231
Multifamily loans | 4,918 | 36,829 | 49,960 | 94,134
Real estate securities | 10,135 | 23,047 | 38,471 | 72,514
Other interest income | 6,371 | 7,725 | 20,537 | 20,513
Total interest income | 121,982 | 150,117 | 450,009 | 429,700
Interest Expense |  |  |  |
Short-term debt | (5,145) | (24,239) | (45,119) | (70,732)
Asset-backed securities issued | (66,514) | (71,065) | (232,316) | (196,473)
Long-term debt | (28,752) | (21,300) | (72,313) | (64,895)
Total interest expense | (100,411) | (116,604) | (349,748) | (332,100)
Net Interest Income | 21,571 | 33,513 | 100,261 | 97,600
Non-interest Income (Loss) |  |  |  |
Mortgage banking activities, net | 59,395 | 9,515 | 24,511 | 40,984
Investment fair value changes, net | 107,047 | 11,444 | (611,557) | 34,741
Other income, net | (114) | 4,356 | 3,979 | 13,840
Realized gains, net | 602 | 4,714 | 30,419 | 18,227
Total non-interest income (loss), net | 166,930 | 30,029 | (552,648) | 107,792
General and administrative expenses | (27,630) | (24,899) | (84,832) | (70,722)
Loan acquisition costs | (2,158) | (1,916) | (7,716) | (5,507)
Other expenses | (7,788) | (2,531) | (104,286) | (6,021)
Net Income (Loss) before (Provision for) Benefit from Income Taxes | 150,925 | 34,196 | (649,221) | 123,142
(Provision for) benefit from income taxes | (9,113) | 114 | 13,079 | (3,102)
Net Income (Loss) | $ 141,812 | $ 34,310 | $ (636,142) | $ 120,040
Basic (loss) earnings per common share (in dollars per share) | $ 1.21 | $ 0.33 | $ (5.60) | $ 1.20
Diluted (loss) earnings per common share (in dollars per share) | $ 1.02 | $ 0.31 | $ (5.60) | $ 1.09
Basic weighted average shares outstanding (in shares) | 113,403,102 | 101,872,126 | 113,952,308 | 97,214,064
Diluted weighted average shares outstanding (in shares) | 141,969,977 | 136,522,709 | 113,952,308 | 131,202,689

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