| Cover Page | Feb. 23, 2021 |
| Cover [Abstract] | |
| Document Type | 8-K |
| Document Period End Date | Feb. 23, 2021 |
| Entity Registrant Name | The Pennant Group, Inc. |
| Entity Incorporation, State or Country Code | DE |
| Entity File Number | 001-38900 |
| Entity Tax Identification Number | 83-3349931 |
| Entity Address, Address Line One | 1675 E Riverside Drive |
| Entity Address, Address Line Two | Suite 150 |
| Entity Address, City or Town | Eagle |
| Entity Address, State or Province | ID |
| Entity Address, Postal Zip Code | 83616 |
| City Area Code | 208 |
| Local Phone Number | 506-6100 |
| 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 $0.001 per share |
| Trading Symbol | PNTG |
| Security Exchange Name | NASDAQ |
| Entity Emerging Growth Company | true |
| Entity Ex Transition Period | true |
| Entity Central Index Key | 0001766400 |
| Amendment Flag | false |
