| Document and Entity Information Document | May 05, 2022 |
| Cover [Abstract] | |
| Document Type | 8-K |
| Document Period End Date | May 5, 2022 |
| Entity Registrant Name | YELP INC. |
| Entity Central Index Key | 0001345016 |
| Amendment Flag | false |
| Entity Incorporation, State or Country Code | DE |
| Entity File Number | 001-35444 |
| Entity Tax Identification Number | 20-1854266 |
| Entity Address, Address Line One | 350 Mission Street, 10th 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 |
| Written Communications | false |
| Soliciting Material | false |
| Pre-commencement Tender Offer | false |
| Pre-commencement Issuer Tender Offer | false |
| Title of 12(b) Security | Common Stock, par value $0.000001 per share |
| Trading Symbol | YELP |
| Security Exchange Name | NYSE |
| Entity Emerging Growth Company | false |
| Entity Addresses [Line Items] | |
| Entity Address, Address Line One | 350 Mission Street, 10th Floor |
| Entity Address, City or Town | San Francisco |
| Entity Address, State or Province | CA |
| Entity Address, Postal Zip Code | 94105 |
