| Cover | Feb. 22, 2022 |
| Cover [Abstract] | |
| Document Type | 8-K |
| Document Period End Date | Feb. 22, 2022 |
| Entity Registrant Name | FEDERAL HOME LOAN BANK OF TOPEKA |
| Entity Incorporation, State or Country Code | X1 |
| Entity File Number | 000-52004 |
| Entity Tax Identification Number | 48-0561319 |
| Entity Address, Address Line One | 500 SW Wanamaker Road |
| Entity Address, City or Town | Topeka |
| Entity Address, State or Province | KS |
| Entity Address, Postal Zip Code | 66606 |
| City Area Code | 785 |
| Local Phone Number | 233.0507 |
| Written Communications | false |
| Soliciting Material | false |
| Pre-commencement Tender Offer | false |
| Pre-commencement Issuer Tender Offer | false |
| Entity Emerging Growth Company | false |
| Entity Central Index Key | 0001325878 |
| Amendment Flag | false |
