XML 81 R65.htm IDEA: XBRL DOCUMENT
v3.24.0.1

Loans - Summary of Term Loans by Origination Year (Details) - USD ($) $ in Thousands | Dec. 31, 2023 | Dec. 31, 2022
--- | --- | ---
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Total | $ 10,884,118 | $ 9,737,138
Commercial and industrial |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Year One | 1,633,085 | 1,456,605
Year Two | 1,078,613 | 650,568
Year Three | 355,722 | 348,225
Year Four | 196,328 | 172,574
Year Five | 124,217 | 70,890
Prior | 71,810 | 70,437
Revolving Loans Converted to Term Loans | 12,943 | 8,388
Revolving Loans | 1,173,653 | 1,058,885
Total | 4,646,371 | 3,836,572
Commercial and industrial | Pass (1-6) |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Year One | 1,567,738 | 1,403,381
Year Two | 1,052,462 | 635,275
Year Three | 345,292 | 332,740
Year Four | 194,972 | 172,127
Year Five | 123,425 | 62,729
Prior | 71,205 | 66,152
Revolving Loans Converted to Term Loans | 12,163 | 8,388
Revolving Loans | 1,108,233 | 964,592
Total | 4,475,490 | 3,645,384
Commercial and industrial | Special Mention (7) |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Year One | 52,523 | 37,048
Year Two | 6,845 | 10,836
Year Three | 8,597 | 13,858
Year Four | 544 | 423
Year Five | 453 | 7,995
Prior | 242 | 4,102
Revolving Loans Converted to Term Loans | 272 | 0
Revolving Loans | 19,590 | 72,944
Total | 89,066 | 147,206
Commercial and industrial | Classified (8-9) |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Year One | 12,824 | 16,176
Year Two | 19,306 | 4,457
Year Three | 1,833 | 1,627
Year Four | 812 | 24
Year Five | 339 | 166
Prior | 363 | 183
Revolving Loans Converted to Term Loans | 508 | 0
Revolving Loans | 45,830 | 21,349
Total | 81,815 | 43,982
Commercial Real Estate-Investor Owned Portfolio Segment [Member] |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Year One | 508,168 | 687,774
Year Two | 567,982 | 590,395
Year Three | 544,868 | 416,369
Year Four | 340,670 | 252,591
Year Five | 168,338 | 115,723
Prior | 247,359 | 221,816
Revolving Loans Converted to Term Loans | 5,270 | 1,506
Revolving Loans | 51,413 | 53,051
Total | 2,434,068 | 2,339,225
Commercial Real Estate-Investor Owned Portfolio Segment [Member] | Pass (1-6) |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Year One | 495,131 | 667,107
Year Two | 544,223 | 584,644
Year Three | 492,974 | 392,402
Year Four | 323,175 | 240,033
Year Five | 165,343 | 115,530
Prior | 236,914 | 202,661
Revolving Loans Converted to Term Loans | 5,222 | 1,457
Revolving Loans | 51,413 | 53,051
Total | 2,314,395 | 2,256,885
Commercial Real Estate-Investor Owned Portfolio Segment [Member] | Special Mention (7) |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Year One | 3,626 | 18,844
Year Two | 22,725 | 5,751
Year Three | 51,851 | 23,502
Year Four | 1,657 | 11,605
Year Five | 164 | 0
Prior | 5,526 | 13,063
Revolving Loans Converted to Term Loans | 0 | 0
Revolving Loans | 0 | 0
Total | 85,549 | 72,765
Commercial Real Estate-Investor Owned Portfolio Segment [Member] | Classified (8-9) |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Year One | 9,411 | 1,823
Year Two | 1,034 | 0
Year Three | 43 | 465
Year Four | 15,838 | 953
Year Five | 2,831 | 193
Prior | 4,919 | 6,092
Revolving Loans Converted to Term Loans | 48 | 49
Revolving Loans | 0 | 0
Total | 34,124 | 9,575
Commercial Real Estate-Owner Occupied Portfolio Segment [Member] |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Year One | 425,029 | 550,774
Year Two | 492,635 | 561,063
Year Three | 496,488 | 382,489
Year Four | 315,072 | 245,700
Year Five | 198,189 | 152,011
Prior | 354,164 | 291,009
Revolving Loans Converted to Term Loans | 10,139 | 0
Revolving Loans | 31,529 | 58,108
Total | 2,323,245 | 2,241,154
Commercial Real Estate-Owner Occupied Portfolio Segment [Member] | Pass (1-6) |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Year One | 407,901 | 539,610
Year Two | 486,701 | 555,690
Year Three | 489,589 | 362,150
Year Four | 301,399 | 232,335
Year Five | 183,872 | 123,095
Prior | 313,474 | 270,613
Revolving Loans Converted to Term Loans | 5,083 | 0
Revolving Loans | 30,036 | 57,308
Total | 2,218,055 | 2,140,801
Commercial Real Estate-Owner Occupied Portfolio Segment [Member] | Special Mention (7) |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Year One | 13,739 | 11,164
Year Two | 2,521 | 3,801
Year Three | 4,652 | 16,856
Year Four | 10,492 | 4,455
Year Five | 5,439 | 13,043
Prior | 15,833 | 9,009
Revolving Loans Converted to Term Loans | 0 | 0
Revolving Loans | 1,493 | 800
Total | 54,169 | 59,128
Commercial Real Estate-Owner Occupied Portfolio Segment [Member] | Classified (8-9) |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Year One | 3,389 | 0
Year Two | 3,413 | 1,572
Year Three | 2,247 | 3,483
Year Four | 3,181 | 8,910
Year Five | 8,878 | 15,873
Prior | 24,857 | 11,387
Revolving Loans Converted to Term Loans | 5,056 | 0
Revolving Loans | 0 | 0
Total | 51,021 | 41,225
Construction Real Estate Portfolio Segment [Member] |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Year One | 293,868 | 308,669
Year Two | 328,672 | 232,998
Year Three | 97,472 | 53,810
Year Four | 31,166 | 3,069
Year Five | 1,549 | 2,643
Prior | 3,988 | 8,607
Revolving Loans Converted to Term Loans | 10 | 0
Revolving Loans | 3,700 | 1,769
Total | 760,425 | 611,565
Construction Real Estate Portfolio Segment [Member] | Pass (1-6) |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Year One | 292,689 | 290,146
Year Two | 325,010 | 232,998
Year Three | 96,426 | 53,129
Year Four | 30,956 | 2,909
Year Five | 1,413 | 2,061
Prior | 3,408 | 8,480
Revolving Loans Converted to Term Loans | 10 | 0
Revolving Loans | 3,700 | 1,769
Total | 753,612 | 591,492
Construction Real Estate Portfolio Segment [Member] | Special Mention (7) |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Year One | 42 | 17,331
Year Two | 2,958 | 0
Year Three | 1,046 | 681
Year Four | 210 | 146
Year Five | 123 | 111
Prior | 114 | 106
Revolving Loans Converted to Term Loans | 0 | 0
Revolving Loans | 0 | 0
Total | 4,493 | 18,375
Construction Real Estate Portfolio Segment [Member] | Classified (8-9) |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Year One | 1,137 | 1,192
Year Two | 704 | 0
Year Three | 0 | 0
Year Four | 0 | 14
Year Five | 13 | 471
Prior | 466 | 21
Revolving Loans Converted to Term Loans | 0 | 0
Revolving Loans | 0 | 0
Total | 2,320 | 1,698
Residential |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Year One | 59,708 | 63,769
Year Two | 43,029 | 60,983
Year Three | 51,505 | 48,796
Year Four | 30,713 | 21,075
Year Five | 17,898 | 12,713
Prior | 80,620 | 90,570
Revolving Loans Converted to Term Loans | 1,538 | 579
Revolving Loans | 86,465 | 96,309
Total | 371,476 | 394,794
Residential | Pass (1-6) |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Year One | 59,259 | 63,317
Year Two | 41,956 | 60,910
Year Three | 51,436 | 48,796
Year Four | 30,713 | 20,943
Year Five | 17,793 | 11,259
Prior | 77,327 | 88,795
Revolving Loans Converted to Term Loans | 1,464 | 579
Revolving Loans | 78,351 | 96,304
Total | 358,299 | 390,903
Residential | Special Mention (7) |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Year One | 322 | 331
Year Two | 0 | 0
Year Three | 0 | 0
Year Four | 0 | 79
Year Five | 75 | 352
Prior | 1,801 | 781
Revolving Loans Converted to Term Loans | 0 | 0
Revolving Loans | 614 | 0
Total | 2,812 | 1,543
Residential | Classified (8-9) |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Year One | 127 | 121
Year Two | 1,073 | 73
Year Three | 69 | 0
Year Four | 0 | 53
Year Five | 30 | 1,102
Prior | 1,492 | 994
Revolving Loans Converted to Term Loans | 74 | 0
Revolving Loans | 7,500 | 5
Total | 10,365 | 2,348
Other |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Year One | 10,071 | 38,753
Year Two | 55,923 | 88,613
Year Three | 82,238 | 56,252
Year Four | 53,569 | 10,560
Year Five | 9,382 | 20,511
Prior | 19,665 | 10,807
Revolving Loans Converted to Term Loans | 7 | 3
Revolving Loans | 40,109 | 9,540
Total | 270,964 | 235,039
Other | Pass (1-6) |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Year One | 10,071 | 38,753
Year Two | 55,923 | 88,613
Year Three | 67,766 | 56,252
Year Four | 53,569 | 10,556
Year Five | 9,382 | 20,508
Prior | 19,657 | 10,796
Revolving Loans Converted to Term Loans | 7 | 0
Revolving Loans | 28,464 | 9,536
Total | 244,839 | 235,014
Other | Special Mention (7) |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Year One | 0 | 0
Year Two | 0 | 0
Year Three | 14,472 | 0
Year Four | 0 | 0
Year Five | 0 | 0
Prior | 0 | 0
Revolving Loans Converted to Term Loans | 0 | 0
Revolving Loans | 11,645 | 0
Total | 26,117 | 0
Other | Classified (8-9) |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Year One | 0 | 0
Year Two | 0 | 0
Year Three | 0 | 0
Year Four | 0 | 4
Year Five | 0 | 3
Prior | 8 | 11
Revolving Loans Converted to Term Loans | 0 | 3
Revolving Loans | 0 | 4
Total | 8 | 25
Loans Classified By Risk Category |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Year One | 2,929,929 | 3,106,344
Year Two | 2,566,854 | 2,184,620
Year Three | 1,628,293 | 1,305,941
Year Four | 967,518 | 705,569
Year Five | 519,573 | 374,491
Prior | 777,606 | 693,246
Revolving Loans Converted to Term Loans | 29,907 | 10,476
Revolving Loans | 1,386,869 | 1,277,662
Total | 10,806,549 | 9,658,349
Loans Classified by Performing Status |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Total | $ 77,569 | $ 78,789

X
- Definition Amortized cost excluding accrued interest, before allowance for credit loss, of financing receivable. Excludes net investment in lease. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 45 -Paragraph 1 -Publisher FASB -URI https://asc.fasb.org//1943274/2147479344/326-20-45-1 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 3B -Publisher FASB -URI https://asc.fasb.org//1943274/2147479319/326-20-50-3B Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 5 -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org//1943274/2147479319/326-20-50-5 + Details
Name: | us-gaap_FinancingReceivableExcludingAccruedInterestBeforeAllowanceForCreditLoss
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Amortized cost excluding accrued interest, of financing receivable originated more than five years prior to current fiscal year. Excludes net investment in lease. + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 55 -Paragraph 79 -Publisher FASB -URI https://asc.fasb.org//1943274/2147479294/326-20-55-79 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 6 -Publisher FASB -URI https://asc.fasb.org//1943274/2147479319/326-20-50-6 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 3B -Publisher FASB -URI https://asc.fasb.org//1943274/2147479319/326-20-50-3B + Details
Name: | us-gaap_FinancingReceivableExcludingAccruedInterestOriginatedMoreThanFiveYearsBeforeCurrentFiscalYear
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Amortized cost excluding accrued interest, of financing receivable that can be withdrawn, repaid, and redrawn. + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 55 -Paragraph 79 -Publisher FASB -URI https://asc.fasb.org//1943274/2147479294/326-20-55-79 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 6 -Publisher FASB -URI https://asc.fasb.org//1943274/2147479319/326-20-50-6 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 3B -Publisher FASB -URI https://asc.fasb.org//1943274/2147479319/326-20-50-3B + Details
Name: | us-gaap_FinancingReceivableExcludingAccruedInterestRevolving
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Amortized cost excluding accrued interest, of revolving financing receivable converted to term loan. + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 55 -Paragraph 79 -Publisher FASB -URI https://asc.fasb.org//1943274/2147479294/326-20-55-79 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 6A -Publisher FASB -URI https://asc.fasb.org//1943274/2147479319/326-20-50-6A Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 3B -Publisher FASB -URI https://asc.fasb.org//1943274/2147479319/326-20-50-3B + Details
Name: | us-gaap_FinancingReceivableExcludingAccruedInterestRevolvingConvertedToTermLoan
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Amortized cost excluding accrued interest, of financing receivable originated four years prior to current fiscal year. Excludes net investment in lease. + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 55 -Paragraph 79 -Publisher FASB -URI https://asc.fasb.org//1943274/2147479294/326-20-55-79 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 6 -Publisher FASB -URI https://asc.fasb.org//1943274/2147479319/326-20-50-6 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 3B -Publisher FASB -URI https://asc.fasb.org//1943274/2147479319/326-20-50-3B + Details
Name: | us-gaap_FinancingReceivableExcludingAccruedInterestYearFiveOriginatedFourYearsBeforeCurrentFiscalYear
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Amortized cost excluding accrued interest, of financing receivable originated three years prior to current fiscal year. Excludes net investment in lease. + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 55 -Paragraph 79 -Publisher FASB -URI https://asc.fasb.org//1943274/2147479294/326-20-55-79 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 6 -Publisher FASB -URI https://asc.fasb.org//1943274/2147479319/326-20-50-6 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 3B -Publisher FASB -URI https://asc.fasb.org//1943274/2147479319/326-20-50-3B + Details
Name: | us-gaap_FinancingReceivableExcludingAccruedInterestYearFourOriginatedThreeYearsBeforeCurrentFiscalYear
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Amortized cost excluding accrued interest, of financing receivable originated in current fiscal year. Excludes net investment in lease. + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 55 -Paragraph 79 -Publisher FASB -URI https://asc.fasb.org//1943274/2147479294/326-20-55-79 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 6 -Publisher FASB -URI https://asc.fasb.org//1943274/2147479319/326-20-50-6 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 3B -Publisher FASB -URI https://asc.fasb.org//1943274/2147479319/326-20-50-3B + Details
Name: | us-gaap_FinancingReceivableExcludingAccruedInterestYearOneOriginatedCurrentFiscalYear
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Amortized cost excluding accrued interest, of financing receivable originated two years prior to current fiscal year. Excludes net investment in lease. + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 55 -Paragraph 79 -Publisher FASB -URI https://asc.fasb.org//1943274/2147479294/326-20-55-79 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 6 -Publisher FASB -URI https://asc.fasb.org//1943274/2147479319/326-20-50-6 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 3B -Publisher FASB -URI https://asc.fasb.org//1943274/2147479319/326-20-50-3B + Details
Name: | us-gaap_FinancingReceivableExcludingAccruedInterestYearThreeOriginatedTwoYearsBeforeCurrentFiscalYear
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Amortized cost excluding accrued interest of financing receivable originated in fiscal year prior to current fiscal year. Excludes net investment in lease. + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 55 -Paragraph 79 -Publisher FASB -URI https://asc.fasb.org//1943274/2147479294/326-20-55-79 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 6 -Publisher FASB -URI https://asc.fasb.org//1943274/2147479319/326-20-50-6 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 3B -Publisher FASB -URI https://asc.fasb.org//1943274/2147479319/326-20-50-3B + Details
Name: | us-gaap_FinancingReceivableExcludingAccruedInterestYearTwoOriginatedFiscalYearBeforeCurrentFiscalYear
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 5 -Publisher FASB -URI https://asc.fasb.org//1943274/2147479319/326-20-50-5 Reference 2: http://www.xbrl.org/2003/role/exampleRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 55 -Paragraph 79 -Publisher FASB -URI https://asc.fasb.org//1943274/2147479294/326-20-55-79 + Details
Name: | us-gaap_FinancingReceivableRecordedInvestmentLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | us-gaap_FinancingReceivablePortfolioSegmentAxis=efsc_CommercialAndIndustrialPortfolioSegmentMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_InternalCreditAssessmentAxis=us-gaap_PassMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_InternalCreditAssessmentAxis=us-gaap_SpecialMentionMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_InternalCreditAssessmentAxis=us-gaap_SubstandardMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancingReceivablePortfolioSegmentAxis=efsc_CommercialRealEstateInvestorOwnedPortfolioSegmentMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancingReceivablePortfolioSegmentAxis=efsc_CommercialRealEstateOwnerOccupiedPortfolioSegmentMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancingReceivablePortfolioSegmentAxis=efsc_ConstructionRealEstatePortfolioSegmentMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancingReceivablePortfolioSegmentAxis=us-gaap_ResidentialPortfolioSegmentMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancingReceivablePortfolioSegmentAxis=efsc_ConsumerAndOtherPortfolioSegmentMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancingReceivablePortfolioSegmentAxis=efsc_LoansClassifiedByRiskCategoryMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancingReceivablePortfolioSegmentAxis=efsc_LoansClassifiedByPerformingStatusMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |