| Document Information Document | May 10, 2020$ / shares |
| Cover [Abstract] | |
| Document Type | 8-K |
| Document Period End Date | May 10, 2020 |
| Entity Registrant Name | STAGE STORES, INC. |
| Entity File Number | 1-14035 |
| Entity Incorporation, State or Country Code | NV |
| Entity Tax Identification Number | 91-1826900 |
| Entity Address, Address Line One | 2425 West Loop South |
| Entity Address, City or Town | Houston, |
| Entity Address, State or Province | TX |
| Entity Address, Postal Zip Code | 77027 |
| City Area Code | (800) |
| Local Phone Number | 579-2302 |
| 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 $0.01 per share |
| Trading Symbol | SSI |
| Security Exchange Name | NYSE |
| Entity Emerging Growth Company | false |
| Entity Central Index Key | 0000006885 |
| Amendment Flag | false |
| Entity Listing, Par Value Per Share | $ 0.01 |
