UNAUDITED CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Revenues:
Total revenues	$ 13,507	$ 5,803
Costs and expenses:
Engineering and development expenses - industrial operations	190	0
Sales and marketing expenses - industrial operations	2,016	0
General and administrative expenses	11,053	6,166
Total costs and expenses	22,015	11,479
Operating loss	(8,508)	(5,676)
Equity securities investments:
Change in fair value of equity securities	(172,203)	37,849
Gain on sale of equity securities	66,876	819
Earnings on equity investment in joint venture	0	2,730
Net realized and unrealized (loss) gain	(105,327)	41,398
Change in fair value of investment	0	(2,752)
Gain on sale of investment	0	3,591
Change in fair value of the Series A and B warrants and embedded derivatives	28,098	(198,909)
Loss on foreign currency exchange	(813)	(24)
Interest expense on Senior Secured Notes	(2,601)	(1,157)
Interest income (expense) and other	1,007	(26)
Total other expense	(79,636)	(157,879)
Loss before income taxes	(88,144)	(163,555)
Income tax benefit (expense)	14,878	(10)
Net loss including noncontrolling interests in subsidiaries	(73,266)	(163,565)
Net income attributable to noncontrolling interests in subsidiaries	0	(900)
Net loss attributable to Acacia Research Corporation	(73,266)	(164,465)
Loss per share:
Net loss attributable to common stockholders - Basic	(75,117)	(136,512)
Net loss attributable to common stockholders - Diluted	$ (75,117)	$ (136,512)
Weighted average number of shares outstanding - Basic (in shares)	46,544,313	48,596,040
Weighted average number of shares outstanding - Diluted	46,544,313	48,596,040
Basic net loss per common share (in usd per share)	$ (1.61)	$ (2.81)
Diluted net loss per common share (in usd per share)	$ (1.61)	$ (2.81)
Intellectual property operations
Revenues:
Total revenues	$ 2,615	$ 5,803
Costs and expenses:
Cost of revenues - intellectual property operations	4,564	5,313
Industrial operations
Revenues:
Total revenues	10,892	0
Costs and expenses:
Cost of revenues - intellectual property operations	$ 4,192	$ 0