Cover page - shares	6 Months Ended
	Jun. 30, 2020	Jul. 31, 2020
Cover [Abstract]
Document Type	10-Q
Document Quarterly Report	true
Document Period End Date	Jun. 30, 2020
Document Transition Report	false
Entity File Number	001-35444
Entity Registrant Name	YELP INC.
Entity Incorporation, State or Country Code	DE
Entity Tax Identification Number	20-1854266
Entity Address, Address Line One	140 New Montgomery Street, 9th Floor
Entity Address, City or Town	San Francisco
Entity Address, State or Province	CA
Entity Address, Postal Zip Code	94105
City Area Code	(415)
Local Phone Number	908-3801
Title of 12(b) Security	Common Stock, par value $0.000001 per share
Trading Symbol	YELP
Security Exchange Name	NYSE
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
Entity Shell Company	false
Entity Common Stock, Shares Outstanding		73,132,105
Amendment Flag	false
Entity Central Index Key	0001345016
Current Fiscal Year End Date	--12-31
Document Fiscal Year Focus	2020
Document Fiscal Period Focus	Q2