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v3.20.1

Consolidated Statements of Operations - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2019 | Dec. 31, 2018
Income Statement [Abstract] |  |
Revenues | $ 11,246 | $ 131,506
Portfolio operations: |  |
Inventor royalties | 4,944 | 35,168
Contingent legal fees | 591 | 31,501
Patent acquisition expenses | 0 | 4,000
Litigation and licensing expenses - patents | 7,803 | 8,866
Amortization of patents | 3,194 | 27,120
Other portfolio expenses | 1,756 | 2,602
Total portfolio expenses | 18,288 | 109,257
Net portfolio income (loss) | (7,042) | 22,249
General and administrative expenses | 16,376 | 18,728
Impairment of patent-related intangible assets | 0 | 28,210
Operating loss | (23,418) | (24,689)
Other income (expense): |  |
Change in fair value of investment, net (Note 6) | 9,899 | (59,103)
Loss on sale of investment (Note 6) | (9,230) | (19,095)
Impairment of other investment (Note 6) | (8,195) | (1,000)
Gain on disposal of other investment (Note 6) | 2,000 | 0
Change in fair value of the Series A warrants and embedded derivative | 4,518 | 0
Interest income and other | 5,473 | 218
Total other income (expense) | 4,465 | (78,980)
Loss before income taxes | (18,953) | (103,669)
Income tax (expense) benefit | 1,824 | (1,179)
Net loss including noncontrolling interests in subsidiaries | (17,129) | (104,848)
Net (income) loss attributable to noncontrolling interests in subsidiaries | 14 | (181)
Net loss attributable to Acacia Research Corporation | (17,115) | (105,029)
Less: Accretion of redeemable preferred stock | (307) | 0
Net loss attributable to common stockholders - basic | $ (17,422) | $ (105,029)
Basic net loss per share of common stock | $ (0.35) | $ (2.10)
Weighted average number of shares outstanding - basic | 49,764,002 | 49,969,062
Add: Accretion of redeemable preferred stock | $ 307 | $ 0
Less: Mark-to-market adjustment for preferred stock embedded derivative | (3,258) | 0
Net loss attributable to common stockholders - diluted | $ (20,373) | $ (105,029)
Diluted net loss per share of common stock | $ (0.40) | $ (2.10)
Weighted average number of shares outstanding - diluted | 50,896,773 | 49,969,062

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