Document and Entity Information - shares	9 Months Ended
	Sep. 30, 2022	Oct. 31, 2022
Cover [Abstract]
Entity Registrant Name	XPERI INC.
Trading Symbol	XPER
Entity Central Index Key	0001788999
Current Fiscal Year End Date	--12-31
Entity Filer Category	Non-accelerated Filer
Entity Small Business	false
Entity Emerging Growth Company	true
Entity Ex Transition Period	false
Document Type	10-Q
Document Period End Date	Sep. 30, 2022
Document Fiscal Year Focus	2022
Document Fiscal Period Focus	Q3
Amendment Flag	false
Entity Common Stock, Shares Outstanding		42,023,632
Entity Current Reporting Status	No
Entity Interactive Data Current	Yes
Entity Shell Company	false
Entity File Number	001-41486
Entity Incorporation, State or Country Code	DE
Entity Tax Identification Number	83-4470363
Entity Address, Address Line One	2190 Gold Street
Entity Address, City or Town	San Jose
Entity Address, State or Province	CA
Entity Address, Postal Zip Code	95002
City Area Code	408
Local Phone Number	519-9100
Document Quarterly Report	true
Document Transition Report	false
Security12b Title	Common Stock (par value $0.001 per share)
Security Exchange Name	NYSE