XML 39 R32.htm IDEA: XBRL DOCUMENT
v3.25.3

Commitments, Contingencies and Guarantees (Tables) | 9 Months Ended
--- | ---
Sep. 30, 2025
Commitments And Contingencies Disclosure [Abstract] |
Notional Amount of Off-Balance Sheet Financial Instruments | The following table summarizes the Company’s off-balance sheet financial instruments as described above (in thousands):
|  | Contractual or Notional Amount |
|  | September 30, |  |  | December 31, |
|  | 2025 |  |  | 2024 |
Commitments to extend credit for loans (excluding credit card loans) |  | $ | 16,858,573 |  |  | $ | 12,904,749 |
Commitments to extend credit under credit card loans |  |  | 6,718,465 |  |  |  | 5,474,758 |
Commercial letters of credit |  |  | — |  |  |  | 311 |
Standby letters of credit |  |  | 461,118 |  |  |  | 404,697 |
Forward contracts |  |  | 64,356 |  |  |  | 55,174 |
Spot foreign exchange contracts |  |  | 39,454 |  |  |  | 50,006 |
Commitments to extend credit for securities purchased under agreements to resell |  |  | 181,000 |  |  |  | 96,000 |

X
- Definition Tabular disclosure of information related to the notional amount of off-balance sheet financial instruments. + References No definition available. + Details
Name: | umbf_ScheduleOfNotionalAmountOfOffBalanceSheetFinancialInstrumentsTextBlock
Namespace Prefix: | umbf_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- References No definition available. + Details
Name: | us-gaap_CommitmentsAndContingenciesDisclosureAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration