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Consolidated Statements of Income (Parenthetical) $ in Millions	12 Months Ended
	Dec. 31, 2025 USD ($)
Income Statement [Abstract]
Recaptured tax credit	$ 32.1

X

- Definition

Tax Credit, Recaptured, Amount

+ References

No definition available.

+ Details

Name:	efsc_TaxCreditRecapturedAmount
Namespace Prefix:	efsc_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

X

- References

No definition available.

+ Details

Name:	us-gaap_IncomeStatementAbstract
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration