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Parent Company Only Condensed Financial Statements (Parenthetical) (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Collateral pledged	$ 36,525	$ 36,525

X

- Definition

Collateral pledged

+ References

No definition available.

+ Details

Name:	efsc_CollateralPledged
Namespace Prefix:	efsc_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant