Document and Entity Information - USD ($) $ / shares in Units, shares in Thousands, $ in Billions	12 Months Ended
	Dec. 31, 2024	Feb. 03, 2025	Jun. 28, 2024
Document and Entity Information
Document Type	10-K
Document Annual Report	true
Document Period End Date	Dec. 31, 2024
Document Transition Report	false
Entity File Number	000-23441
Entity Registrant Name	POWER INTEGRATIONS, INC.
Entity Incorporation, State or Country Code	DE
Entity Tax Identification Number	94-3065014
Entity Address, Address Line One	5245 Hellyer Avenue
Entity Address, City or Town	San Jose
Entity Address, State or Province	CA
Entity Address, Postal Zip Code	95138-1002
City Area Code	408
Local Phone Number	414-9200
Title of 12(b) Security	Common Stock
Trading Symbol	POWI
Security Exchange Name	NASDAQ
Entity Well-known Seasoned Issuer	Yes
Entity Voluntary Filers	No
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Large Accelerated Filer
Entity Small Business	false
Entity Emerging Growth Company	false
ICFR Auditor Attestation Flag	true
Document Financial Statement Error Correction	false
Entity Shell Company	false
Entity Public Float			$ 3.0
Entity Common Stock, Shares Outstanding		56,933
Entity Listing, Par Value Per Share	$ 0.001
Entity Central Index Key	0000833640
Current Fiscal Year End Date	--12-31
Document Fiscal Period Focus	FY
Document Fiscal Year Focus	2024
Amendment Flag	false
Auditor Name	DELOITTE & TOUCHE LLP
Auditor Location	San Jose, California
Auditor Firm ID	34