| Cover Page | Jul. 21, 2020 | Apr. 21, 2020 |
| Cover [Abstract] | ||
| Document Type | 8-K | |
| Document Period End Date | Jan. 19, 2021 | |
| Entity Registrant Name | Fulton Financial Corporation | |
| Entity Central Index Key | 0000700564 | |
| Amendment Flag | false | |
| Entity Incorporation, State or Country Code | PA | |
| Entity File Number | 0-10587 | |
| Entity Tax Identification Number | 23-2195389 | |
| Entity Address, Address Line One | One Penn Square, | |
| Entity Address, City or Town | Lancaster, | |
| Entity Address, State or Province | PA | |
| Entity Address, Postal Zip Code | 17602 | |
| City Area Code | 717 | |
| Local Phone Number | 291-2411 | |
| 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 $2.50 | |
| Trading Symbol | FULT | |
| Security Exchange Name | NASDAQ | |
| Entity Emerging Growth Company | false |
