CONDENSED CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021
Current assets:
Cash and cash equivalents	$ 287,786	$ 308,943
Equity securities	61,608	361,778
Equity securities without readily determinable fair value	5,816	5,816
Equity method investments	30,934	30,934
Accounts receivable, net	8,231	9,517
Inventories	14,222	8,930
Prepaid expenses and other current assets	19,388	4,764
Total current assets	427,985	730,682
Long-term restricted cash	0	418
Property, plant and equipment, net	3,537	4,183
Goodwill	7,541	7,470
Other intangible assets, net	36,658	48,793
Leased right-of-use assets	2,005	2,027
Other non-current assets	5,202	5,283
Total assets	482,928	798,856
Current liabilities:
Accounts payable	6,036	5,440
Accrued expenses and other current liabilities	14,058	6,227
Accrued compensation	4,737	3,698
Royalties and contingent legal fees payable	699	2,463
Accrued patent costs	9,000	0
Deferred revenue	1,229	1,114
Senior secured notes payable	60,450	181,248
Total current liabilities	87,209	200,190
Deferred revenue, net of current portion	568	581
Series A warrant liabilities	0	11,291
Series A embedded derivative liabilities	16,835	18,448
Series B warrant liabilities	84,780	96,378
Long-term lease liabilities	1,873	2,027
Deferred income tax liabilities, net	742	18,552
Other long-term liabilities	1,675	6,161
Total liabilities	193,682	353,628
Commitments and contingencies
Series A redeemable convertible preferred stock, par value $0.001 per share; stated value $100 per share; 350,000 shares authorized, issued and outstanding as of December 31, 2022 and 2021; aggregate liquidation preference of $35,000 as of December 31, 2022 and 2021	19,924	14,753
Stockholders' equity:
Preferred stock, par value $0.001 per share; 10,000,000 shares authorized; no shares issued or outstanding	0	0
Common stock, par value $0.001 per share; 300,000,000 shares authorized; 43,484,867 and 48,807,748 shares issued and outstanding as of December 31, 2022 and 2021, respectively	43	49
Treasury stock, at cost, 16,183,703 and 5,388,469 shares as of December 31, 2022 and 2021, respectively	(98,258)	(47,281)
Additional paid-in capital	663,284	648,389
Accumulated deficit	(306,789)	(181,724)
Total Acacia Research Corporation stockholders' equity	258,280	419,433
Noncontrolling interests	11,042	11,042
Total stockholders' equity	269,322	430,475
Total liabilities, redeemable convertible preferred stock, and stockholders' equity	$ 482,928	$ 798,856