v3.26.1
Related Party and Party In Interest Transactions - Additional Information (Details) - EBP 001 - USD ($)
Dec. 31, 2025
Dec. 31, 2024
EBP, Related Party and Party-in-Interest Transactions [Line Items]    
Common stock at a fair value $ 957,000,119  
Common stock fair value   $ 707,526,594
UMB Company Stock    
EBP, Related Party and Party-in-Interest Transactions [Line Items]    
Common stock at a fair value $ 21,348,783  
Common stock fair value   $ 20,948,215
Number of common stock 185,577  
UMB Company Stock | Plan's Interest in Master Trust    
EBP, Related Party and Party-in-Interest Transactions [Line Items]    
Plan's share of net assets of the master trust   185,612