| Cover Cover | Oct. 29, 2021 | Jul. 30, 2020 | Feb. 20, 2020 |
| Cover [Abstract] | |||
| Document Type | 8-K | ||
| Document Period End Date | Oct. 29, 2021 | ||
| Entity Registrant Name | Gaming and Leisure Properties, Inc. | ||
| Entity Incorporation, State or Country Code | PA | ||
| Entity File Number | 001-36124 | ||
| Entity Tax Identification Number | 46-2116489 | ||
| Entity Address, Address Line One | 845 Berkshire Blvd., Suite 200 | ||
| Entity Address, City or Town | Wyomissing | ||
| Entity Address, State or Province | PA | ||
| Entity Address, Postal Zip Code | 19610 | ||
| City Area Code | 610 | ||
| Local Phone Number | 401-2900 | ||
| 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 $.01 per share | ||
| Trading Symbol | GLPI | ||
| Security Exchange Name | NASDAQ | ||
| Entity Emerging Growth Company | false | ||
| Entity Central Index Key | 0001575965 | ||
| Amendment Flag | false |
