v3.25.2
Cover Page - shares
3 Months Ended 6 Months Ended
Jun. 30, 2025
Jun. 30, 2025
Jul. 31, 2025
Entity Information [Line Items]      
Document Type   10-Q  
Document Quarterly Report   true  
Document Period End Date   Jun. 30, 2025  
Document Transition Report   false  
Entity File Number   000-52004  
Entity Registrant Name   FEDERAL HOME LOAN BANK OF TOPEKA  
Entity Incorporation, State or Country Code   X1  
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  
Entity Current Reporting Status   Yes  
Entity Interactive Data Current   Yes  
Entity Filer Category   Non-accelerated Filer  
Entity Small Business   false  
Entity Emerging Growth Company   false  
Entity Shell Company   false  
Amendment Flag   false  
Document Fiscal Year Focus   2025  
Document Fiscal Period Focus   Q2  
Entity Central Index Key   0001325878  
Current Fiscal Year End Date   --12-31  
No Insider Trading Flag true    
Class A [Member]      
Entity Information [Line Items]      
Entity Common Stock, Shares Outstanding     3,036,589
Class B [Member]      
Entity Information [Line Items]      
Entity Common Stock, Shares Outstanding     22,837,798