| Cover Page | Oct. 26, 2021 |
| Cover [Abstract] | |
| Document Type | 8-K |
| Document Period End Date | Oct. 26, 2021 |
| Exact name of registrant as specified in its charter | OUTFRONT Media Inc. |
| State or other jurisdiction of incorporation | MD |
| Commission File Number | 001-36367 |
| I.R.S. Employer Identification Number | 46-4494703 |
| Entity Address, Address Line One | 405 Lexington Avenue, 17th Floor |
| Entity Address, City or Town | New York, |
| Entity Address, State or Province | NY |
| Zip Code | 10174 |
| City Area Code | 212 |
| Registrant's telephone number | 297-6400 |
| Written Communications | false |
| Soliciting Material | false |
| Pre-commencement Tender Offer | false |
| Pre-commencement Issuer Tender Offer | false |
| Title of 12(b) Security | Common Stock, $0.01, par value |
| Trading Symbol | OUT |
| Security Exchange Name | NYSE |
| Entity Emerging Growth Company | false |
| Entity Central Index Key | 0001579877 |
| Amendment Flag | false |
