XML 86 R103.htm IDEA: XBRL DOCUMENT
v3.19.3.a.u2

Commitments (Details) - USD ($) $ in Thousands | 12 Months Ended |
--- | --- | ---
Dec. 31, 2019 | Dec. 31, 2018
Commitments to extend credit |  |
Schedule of Commitments [Line Items] |  |
Off-balance sheet financial instruments, contractual amounts | $ 1,469,413 | $ 1,344,687
Letters of credit |  |
Schedule of Commitments [Line Items] |  |
Off-balance sheet financial instruments, contractual amounts | $ 47,969 | 44,665
Letters of credit | Minimum |  |
Schedule of Commitments [Line Items] |  |
Remaining term | 1 month |
Letters of credit | Maximum |  |
Schedule of Commitments [Line Items] |  |
Remaining term | 5 years 3 months |
State tax credits, held for sale |  |
Schedule of Commitments [Line Items] |  |
Off-balance sheet financial instruments, contractual amounts | $ 28,035 | 37,473
Low Income Housing Tax Credits [Domain] |  |
Schedule of Commitments [Line Items] |  |
Off-balance sheet financial instruments, contractual amounts | 704 | 4,299
SBIC Capital Commitments [Domain] |  |
Schedule of Commitments [Line Items] |  |
Off-balance sheet financial instruments, contractual amounts | 20,829 | 20,402
Unadvanced Commitment on Impaired Loan |  |
Schedule of Commitments [Line Items] |  |
Estimated losses attributable to unadvanced commitments on impaired loans | 400 |
Fixed Rate Loan Commitment | Commitments to extend credit |  |
Schedule of Commitments [Line Items] |  |
Off-balance sheet financial instruments, contractual amounts | $ 144,800 | $ 68,500

X
- Definition Contractual Amounts Of Off Balance Sheet Financial Instruments + References No definition available. + Details
Name: | efsc_ContractualAmountsOfOffBalanceSheetFinancialInstruments
Namespace Prefix: | efsc_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Debt Instrument, Remaining Term + References No definition available. + Details
Name: | efsc_DebtInstrumentRemainingTerm
Namespace Prefix: | efsc_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

X
- Definition Loans and Leases Receivable, Impaired Loans, Commitment to Lend, Reserve + References No definition available. + Details
Name: | efsc_LoansAndLeasesReceivableImpairedLoansCommitmentToLendReserve
Namespace Prefix: | efsc_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Schedule of Commitments [Line Items] + References No definition available. + Details
Name: | efsc_ScheduleOfCommitmentsLineItems
Namespace Prefix: | efsc_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | us-gaap_FinancialInstrumentAxis=us-gaap_CommitmentsToExtendCreditMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancialInstrumentAxis=us-gaap_StandbyLettersOfCreditMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_RangeAxis=srt_MinimumMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_RangeAxis=srt_MaximumMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancialInstrumentAxis=efsc_StateTaxCreditsHeldForSaleMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancialInstrumentAxis=efsc_LowIncomeHousingTaxCreditsDomain
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancialInstrumentAxis=efsc_SBICCapitalCommitmentsDomain
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | efsc_NatureOfCommitmentsAxis=efsc_UnadvancedCommitmentOnImpairedLoanMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | efsc_NatureOfCommitmentsAxis=efsc_FixedRateLoanCommitmentMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |