XML 74 R63.htm IDEA: XBRL DOCUMENT
v3.25.3

SUBSEQUENT EVENT (Details) - Subsequent event - First Interstate Bank $ in Millions | Oct. 10, 2025 USD ($)
--- | ---
Subsequent Event [Line Items] |
Deposits | $ 641.6
Performing loans | $ 297.4

X
- Definition Business Combination, Recognized Asset Acquired, Deposits + References No definition available. + Details
Name: | efsc_BusinessCombinationRecognizedAssetAcquiredDeposits
Namespace Prefix: | efsc_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Business Combination, Recognized Asset Acquired, Performing Loans + References No definition available. + Details
Name: | efsc_BusinessCombinationRecognizedAssetAcquiredPerformingLoans
Namespace Prefix: | efsc_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Detail information of subsequent event by type. User is expected to use existing line items from elsewhere in the taxonomy as the primary line items for this disclosure, which is further associated with dimension and member elements pertaining to a subsequent event. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 830 -SubTopic 30 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Publisher FASB -URI https://asc.fasb.org/1943274/2147481674/830-30-50-2 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 855 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Publisher FASB -URI https://asc.fasb.org/1943274/2147483399/855-10-50-2 + Details
Name: | us-gaap_SubsequentEventLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | us-gaap_SubsequentEventTypeAxis=us-gaap_SubsequentEventMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_BusinessAcquisitionAxis=efsc_FirstInterstateBankMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |