XML 11 R1.htm IDEA: XBRL DOCUMENT v3.22.2.2
Cover - shares
9 Months Ended
Sep. 30, 2022
Nov. 07, 2022
Cover [Abstract]    
Document Type 10-Q  
Document Quarterly Report true  
Document Period End Date Sep. 30, 2022  
Document Transition Report false  
Entity File Number 1-37721  
Entity Registrant Name Acacia Research Corporation  
Entity Incorporation, State or Country Code DE  
Entity Tax Identification Number 95-4405754  
Entity Address, Address Line One 767 Third Avenue,  
Entity Address, Address Line Two 6th Floor  
Entity Address, City or Town New York,  
Entity Address, State or Province NY  
Entity Address, Postal Zip Code 10017  
City Area Code 332  
Local Phone Number 236-8500  
Title of 12(b) Security Common Stock  
Trading Symbol ACTG  
Security Exchange Name NASDAQ  
Entity Current Reporting Status Yes  
Entity Interactive Data Current Yes  
Entity Filer Category Non-accelerated Filer  
Entity Small Business true  
Entity Emerging Growth Company false  
Entity Shell Company false  
Entity Common Stock, Shares Outstanding   43,540,276
Amendment Flag false  
Entity Central Index Key 0000934549  
Document Fiscal Year Focus 2022  
Document Fiscal Period Focus Q3  
Current Fiscal Year End Date --12-31