v3.3.1.900

Portfolio Loans (Tables) | 12 Months Ended
--- | ---
Dec. 31, 2015
Non-covered Loans [Line Items] |
Summary of Loans to Executive Officers and Directors | Following is a summary of activity for the years ended December 31, 2015, 2014, and 2013 of loans to executive officers and directors, or to entities in which such individuals had beneficial interests as a shareholder, officer, or director. Such loans were made in the normal course of business on substantially the same terms, including interest rates and collateral, as those prevailing at the time for comparable transactions with other customers and did not involve more than the normal risk of collectibility.
(in thousands) | December 31, 2015 |  | December 31, 2014 |  | December 31, 2013
Balance at beginning of year | $ | 13,513 |  |  | $ | 11,752 |  |  | $ | 16,875 |
New loans and advances | 641 |  |  | 11,796 |  |  | 6,519 |
Payments and other reductions | (9,760 | ) |  | (10,035 | ) |  | (11,642 | )
Balance at end of year | $ | 4,394 |  |  | $ | 13,513 |  |  | $ | 11,752 |
Summary of Past Due and Impaired Loans | The following table presents details for past due and impaired loans:
| December 31,
(in thousands) | 2015 |  | 2014 |  | 2013
Total interest income that would have been recognized under original terms on impaired loans | $ | 1,038 |  |  | $ | 1,013 |  |  | $ | 1,538 |
Total cash received and recognized as interest income on impaired loans | 226 |  |  | 118 |  |  | 257 |
Total interest income recognized on impaired loans still accruing | 36 |  |  | 39 |  |  | 16 |
Non-Covered Loans |
Non-covered Loans [Line Items] |
Summary of Portfolio Loans by Category | Below is a summary of Portfolio loans by category at December 31, 2015 and 2014:
(in thousands) | December 31, 2015 |  | December 31, 2014
Commercial and industrial | $ | 1,484,327 |  |  | $ | 1,264,487 |
Real estate loans: |  |  |
Commercial - investor owned | 428,064 |  |  | 396,751 |
Commercial - owner occupied | 342,959 |  |  | 344,003 |
Construction and land development | 161,061 |  |  | 143,878 |
Residential | 196,498 |  |  | 185,252 |
Total real estate loans | 1,128,582 |  |  | 1,069,884 |
Consumer and other | 137,537 |  |  | 98,650 |
Portfolio loans | 2,750,446 |  |  | 2,433,021 |
Unearned loan fees, net | 291 |  |  | 895 |
Portfolio loans, including unearned loan fees | $ | 2,750,737 |  |  | $ | 2,433,916 |
Note: In 2015, the Company redefined certain loan categories by borrower type and purpose of the loan. To conform to the current year classification, the Company reclassified $36.4 million into Consumer and other loans as of December 31, 2014. This includes $5.8 million from C&I, $16.2 million from CRE-investor owned, $13.5 million from CRE-owner occupied, and $0.9 million from Construction and land development.
Summary of Allowance for Loan Losses and the Recorded Investment in Portfolio Loans by Class and Category Based on Impairment Method | A summary of activity in the allowance for loan losses and the recorded investment in Portfolio loans by class and category based on impairment method for the years ended indicated below is as follows:
(in thousands) | Commercial and industrial |  | CRE - investor owned |  | CRE - owner occupied |  | Construction and land development |  | Residential real estate |  | Consumer and other |  | Unallocated |  | Total
Balance at December 31, 2015 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Allowance for Loan Losses: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Balance, beginning of year | $ | 16,983 |  |  | $ | 4,382 |  |  | $ | 3,135 |  |  | $ | 1,715 |  |  | $ | 2,830 |  |  | $ | 1,140 |  |  | $ | — |  |  | $ | 30,185 |
Provision (provision reversal) | 6,976 |  |  | (303 | ) |  | (1,626 | ) |  | (335 | ) |  | (58 | ) |  | 218 |  |  | — |  |  | 4,872 |
Losses charged off | (3,699 | ) |  | (664 | ) |  | (38 | ) |  | (350 | ) |  | (1,313 | ) |  | (27 | ) |  | — |  |  | (6,091 | )
Recoveries | 1,796 |  |  | 69 |  |  | 1,498 |  |  | 674 |  |  | 337 |  |  | 101 |  |  | — |  |  | 4,475 |
Balance, end of year | $ | 22,056 |  |  | $ | 3,484 |  |  | $ | 2,969 |  |  | $ | 1,704 |  |  | $ | 1,796 |  |  | $ | 1,432 |  |  | $ | — |  |  | $ | 33,441 |
Balance at December 31, 2014 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Allowance for Loan Losses: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Balance, beginning of year | $ | 12,246 |  |  | $ | 6,600 |  |  | $ | 4,096 |  |  | $ | 2,136 |  |  | $ | 2,019 |  |  | $ | 192 |  |  | $ | — |  |  | $ | 27,289 |
Provision (provision reversal) | 6,707 |  |  | (2,063 | ) |  | (1,517 | ) |  | (322 | ) |  | 525 |  |  | 1,079 |  |  | — |  |  | 4,409 |
Losses charged off | (3,738 | ) |  | (250 | ) |  | (450 | ) |  | (905 | ) |  | (48 | ) |  | (165 | ) |  | — |  |  | (5,556 | )
Recoveries | 1,768 |  |  | 95 |  |  | 1,006 |  |  | 806 |  |  | 334 |  |  | 34 |  |  | — |  |  | 4,043 |
Balance, end of year | $ | 16,983 |  |  | $ | 4,382 |  |  | $ | 3,135 |  |  | $ | 1,715 |  |  | $ | 2,830 |  |  | $ | 1,140 |  |  | $ | — |  |  | $ | 30,185 |
Balance at December 31, 2013 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Allowance for Loan Losses: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Balance, beginning of year | $ | 10,064 |  |  | $ | 10,403 |  |  | $ | 4,192 |  |  | $ | 5,239 |  |  | $ | 2,026 |  |  | $ | 31 |  |  | $ | 2,375 |  |  | $ | 34,330 |
Provision (provision reversal) | 3,810 |  |  | (94 | ) |  | 410 |  |  | (2,695 | ) |  | 107 |  |  | 195 |  |  | (2,375 | ) |  | (642 | )
Losses charged off | (3,404 | ) |  | (4,441 | ) |  | (550 | ) |  | (896 | ) |  | (1,053 | ) |  | (34 | ) |  | — |  |  | (10,378 | )
Recoveries | 1,776 |  |  | 732 |  |  | 44 |  |  | 488 |  |  | 939 |  |  | — |  |  | — |  |  | 3,979 |
Balance, end of year | $ | 12,246 |  |  | $ | 6,600 |  |  | $ | 4,096 |  |  | $ | 2,136 |  |  | $ | 2,019 |  |  | $ | 192 |  |  | $ | — |  |  | $ | 27,289 |
(in thousands) | Commercial and industrial |  | CRE - investor owned |  | CRE - owner occupied |  | Construction and land development |  | Residential real estate |  | Consumer and other |  | Total
Balance December 31, 2015 |  |  |  |  |  |  |  |  |  |  |  |  |
Allowance for Loan Losses - Ending Balance: |  |  |  |  |  |  |  |  |  |  |  |  |
Individually evaluated for impairment | $ | 1,953 |  |  | $ | — |  |  | $ | 6 |  |  | $ | 369 |  |  | $ | 7 |  |  | $ | — |  |  | $ | 2,335 |
Collectively evaluated for impairment | 20,103 |  |  | 3,484 |  |  | 2,963 |  |  | 1,335 |  |  | 1,789 |  |  | 1,432 |  |  | 31,106 |
Total | $ | 22,056 |  |  | $ | 3,484 |  |  | $ | 2,969 |  |  | $ | 1,704 |  |  | $ | 1,796 |  |  | $ | 1,432 |  |  | $ | 33,441 |
Loans - Ending Balance: |  |  |  |  |  |  |  |  |  |  |  |  |  |
Individually evaluated for impairment | $ | 4,514 |  |  | $ | 921 |  |  | $ | 1,962 |  |  | $ | 2,800 |  |  | $ | 681 |  |  | $ | — |  |  | $ | 10,878 |
Collectively evaluated for impairment | 1,479,813 |  |  | 427,143 |  |  | 340,997 |  |  | 158,261 |  |  | 195,817 |  |  | 137,828 |  |  | 2,739,859 |
Total | $ | 1,484,327 |  |  | $ | 428,064 |  |  | $ | 342,959 |  |  | $ | 161,061 |  |  | $ | 196,498 |  |  | $ | 137,828 |  |  | $ | 2,750,737 |
Balance December 31, 2014 |  |  |  |  |  |  |  |  |  |  |  |  |
Allowance for Loan Losses - Ending Balance: |  |  |  |  |  |  |  |  |  |  |  |  |
Individually evaluated for impairment | $ | 704 |  |  | $ | — |  |  | $ | — |  |  | $ | 352 |  |  | $ | 1,052 |  |  | $ | 286 |  |  | $ | 2,394 |
Collectively evaluated for impairment | 16,279 |  |  | 4,382 |  |  | 3,135 |  |  | 1,363 |  |  | 1,778 |  |  | 854 |  |  | 27,791 |
Total | $ | 16,983 |  |  | $ | 4,382 |  |  | $ | 3,135 |  |  | $ | 1,715 |  |  | $ | 2,830 |  |  | $ | 1,140 |  |  | $ | 30,185 |
Loans - Ending Balance: |  |  |  |  |  |  |  |  |  |  |  |  |
Individually evaluated for impairment | $ | 5,998 |  |  | $ | 5,036 |  |  | $ | 2,618 |  |  | $ | 6,866 |  |  | $ | 3,082 |  |  | $ | 766 |  |  | $ | 24,366 |
Collectively evaluated for impairment | 1,258,489 |  |  | 391,715 |  |  | 341,385 |  |  | 137,012 |  |  | 182,170 |  |  | 98,779 |  |  | 2,409,550 |
Total | $ | 1,264,487 |  |  | $ | 396,751 |  |  | $ | 344,003 |  |  | $ | 143,878 |  |  | $ | 185,252 |  |  | $ | 99,545 |  |  | $ | 2,433,916 |
Summary of Portfolio Loans Individually Evaluated for Impairment and Recorded Investment in Impaired Non-Covered Loans by Category | A summary of Portfolio loans individually evaluated for impairment by category at December 31, 2015 and 2014, is as follows:
| December 31, 2015
(in thousands) | Unpaid Contractual Principal Balance |  | Recorded Investment With No Allowance |  | Recorded Investment With Allowance |  | Total Recorded Investment |  | Related Allowance |  | Average Recorded Investment
Commercial and industrial | $ | 5,554 |  |  | $ | 509 |  |  | $ | 4,204 |  |  | $ | 4,713 |  |  | $ | 1,953 |  |  | $ | 6,970 |
Real estate: |  |  |  |  |  |  |  |  |  |  |
Commercial - investor owned | 927 |  |  | 927 |  |  | — |  |  | 927 |  |  | — |  |  | 970 |
Commercial - owner occupied | 329 |  |  | 85 |  |  | 113 |  |  | 198 |  |  | 6 |  |  | 301 |
Construction and land development | 4,349 |  |  | 2,914 |  |  | 530 |  |  | 3,444 |  |  | 369 |  |  | 3,001 |
Residential | 705 |  |  | 637 |  |  | 68 |  |  | 705 |  |  | 7 |  |  | 682 |
Consumer and other | — |  |  | — |  |  | — |  |  | — |  |  | — |  |  | — |
Total | $ | 11,864 |  |  | $ | 5,072 |  |  | $ | 4,915 |  |  | $ | 9,987 |  |  | $ | 2,335 |  |  | $ | 11,924 |
| December 31, 2014
(in thousands) | Unpaid Contractual Principal Balance |  | Recorded Investment With No Allowance |  | Recorded Investment With Allowance |  | Total Recorded Investment |  | Related Allowance |  | Average Recorded Investment
Commercial and industrial | $ | 8,042 |  |  | $ | 2,609 |  |  | $ | 3,464 |  |  | $ | 6,073 |  |  | $ | 704 |  |  | $ | 4,136 |
Real estate: |  |  |  |  |  |  |  |  |  |  |
Commercial - investor owned | 5,036 |  |  | — |  |  | 5,187 |  |  | 5,187 |  |  | — |  |  | 4,375 |
Commercial - owner occupied | 610 |  |  | — |  |  | 519 |  |  | 519 |  |  | — |  |  | 1,281 |
Construction and land development | 7,961 |  |  | 419 |  |  | 6,929 |  |  | 7,348 |  |  | 352 |  |  | 7,280 |
Residential | 3,082 |  |  | 2,943 |  |  | 150 |  |  | 3,093 |  |  | 1,052 |  |  | 954 |
Consumer and other | 766 |  |  | 770 |  |  | — |  |  | 770 |  |  | 286 |  |  | 581 |
Total | $ | 25,497 |  |  | $ | 6,741 |  |  | $ | 16,249 |  |  | $ | 22,990 |  |  | $ | 2,394 |  |  | $ | 18,607 |
Schedule of Recorded Investment in Impaired Portfolio Loans by Category | The recorded investment in impaired Portfolio loans by category at December 31, 2015 and 2014, is as follows:
| December 31, 2015
(in thousands) | Non-accrual |  | Restructured |  | Loans over 90 days past due and still accruing interest |  | Total
Commercial and industrial | $ | 4,406 |  |  | $ | 307 |  |  | $ | — |  |  | $ | 4,713 |
Real estate: |  |  |  |  |  |  |
Commercial - investor owned | 927 |  |  | — |  |  | — |  |  | 927 |
Commercial - owner occupied | 198 |  |  | — |  |  | — |  |  | 198 |
Construction and land development | 3,444 |  |  | — |  |  | — |  |  | 3,444 |
Residential | 705 |  |  | — |  |  | — |  |  | 705 |
Consumer and other | — |  |  | — |  |  | — |  |  | — |
Total | $ | 9,680 |  |  | $ | 307 |  |  | $ | — |  |  | $ | 9,987 |
| December 31, 2014
(in thousands) | Non-accrual |  | Restructured |  | Loans over 90 days past due and still accruing interest |  | Total
Commercial and industrial | $ | 6,073 |  |  | $ | — |  |  | $ | — |  |  | $ | 6,073 |
Real estate: |  |  |  |  |  |  |
Commercial - investor owned | 4,597 |  |  | 590 |  |  | — |  |  | 5,187 |
Commercial - owner occupied | 519 |  |  | — |  |  | — |  |  | 519 |
Construction and land development | 7,348 |  |  | — |  |  | — |  |  | 7,348 |
Residential | 3,093 |  |  | — |  |  | — |  |  | 3,093 |
Consumer and other | — |  |  | 770 |  |  | — |  |  | 770 |
Total | $ | 21,630 |  |  | $ | 1,360 |  |  | $ | — |  |  | $ | 22,990 |
Summary of Recorded Investment by for Portfolio Loans Restructured | The recorded investment by category for the Portfolio loans that have been restructured during the years ended December 31, 2015 and 2014, is as follows:
| Year ended December 31, 2015 |  | Year ended December 31, 2014
(in thousands, except for number of loans) | Number of Loans |  | Pre-Modification Outstanding Recorded Balance |  | Post-Modification Outstanding Recorded Balance |  | Number of Loans |  | Pre-Modification Outstanding Recorded Balance |  | Post-Modification Outstanding Recorded Balance
Commercial and industrial | 1 |  |  | $ | 303 |  |  | $ | 303 |  |  | 2 |  |  | $ | 658 |  |  | $ | 658 |
Real estate: |  |  |  |  |  |  |  |  |  |  |
Commercial - investor owned | — |  |  | — |  |  | — |  |  | 1 |  |  | 603 |  |  | 603 |
Commercial - owner occupied | — |  |  | — |  |  | — |  |  | 2 |  |  | 606 |  |  | 606 |
Construction and land development | — |  |  | — |  |  | — |  |  | 1 |  |  | 2,827 |  |  | 2,827 |
Residential | — |  |  | — |  |  | — |  |  | 1 |  |  | 125 |  |  | 125 |
Consumer and other | — |  |  | — |  |  | — |  |  | 1 |  |  | 1,043 |  |  | 793 |
Total | 1 |  |  | $ | 303 |  |  | $ | 303 |  |  | 8 |  |  | $ | 5,862 |  |  | $ | 5,612 |
Summary of Recorded Investment by Category for Portfolio Loans Restructured and Subsequently Defaulted | The recorded investment by category for Portfolio loans that have been restructured and subsequently defaulted during 2015 and 2014 is as follows:
| Year ended December 31, 2015 |  | Year ended December 31, 2014
(in thousands, except for number of loans) | Number of Loans |  | Recorded Balance |  | Number of Loans |  | Recorded Balance
Commercial and industrial | — |  |  | $ | — |  |  | — |  |  | $ | — |
Real estate: |  |  |  |  |  |  |
Commercial - investor owned | — |  |  | — |  |  | — |  |  | — |
Commercial - owner occupied | — |  |  | — |  |  | — |  |  | — |
Construction and land development | — |  |  | — |  |  | 1 |  |  | 241 |
Residential | — |  |  | — |  |  | — |  |  | — |
Consumer and other | — |  |  | — |  |  | — |  |  | — |
Total | — |  |  | $ | — |  |  | 1 |  |  | $ | 241 |
Summary of Aging of Recorded Investment in Past Due Portfolio Loans by Portfolio Class and Category | The aging of the recorded investment in past due Portfolio loans by portfolio class and category at December 31, 2015 and 2014 is shown below.
| December 31, 2015
(in thousands) | 30-89 Days Past Due |  | 90 or More Days Past Due |  | Total Past Due |  | Current |  | Total
Commercial and industrial | $ | 505 |  |  | $ | 888 |  |  | $ | 1,393 |  |  | $ | 1,482,934 |  |  | $ | 1,484,327 |
Real estate: |  |  |  |  |  |  |  |  |
Commercial - investor owned | 464 |  |  | — |  |  | 464 |  |  | 427,600 |  |  | 428,064 |
Commercial - owner occupied | 94 |  |  | 184 |  |  | 278 |  |  | 342,681 |  |  | 342,959 |
Construction and land development | 384 |  |  | 2,273 |  |  | 2,657 |  |  | 158,404 |  |  | 161,061 |
Residential | 70 |  |  | 681 |  |  | 751 |  |  | 195,747 |  |  | 196,498 |
Consumer and other | 20 |  |  | — |  |  | 20 |  |  | 137,808 |  |  | 137,828 |
Total | $ | 1,537 |  |  | $ | 4,026 |  |  | $ | 5,563 |  |  | $ | 2,745,174 |  |  | $ | 2,750,737 |
| December 31, 2014
(in thousands) | 30-89 Days Past Due |  | 90 or More Days Past Due |  | Total Past Due |  | Current |  | Total
Commercial and industrial | $ | 3,059 |  |  | $ | 232 |  |  | $ | 3,291 |  |  | $ | 1,261,196 |  |  | $ | 1,264,487 |
Real estate: |  |  |  |  |  |  |  |  |
Commercial - investor owned | 261 |  |  | 4,450 |  |  | 4,711 |  |  | 392,040 |  |  | 396,751 |
Commercial - owner occupied | — |  |  | 496 |  |  | 496 |  |  | 343,507 |  |  | 344,003 |
Construction and land development | 702 |  |  | 2,524 |  |  | 3,226 |  |  | 140,652 |  |  | 143,878 |
Residential | 168 |  |  | — |  |  | 168 |  |  | 185,084 |  |  | 185,252 |
Consumer and other | 774 |  |  | — |  |  | 774 |  |  | 98,771 |  |  | 99,545 |
Total | $ | 4,964 |  |  | $ | 7,702 |  |  | $ | 12,666 |  |  | $ | 2,421,250 |  |  | $ | 2,433,916 |
Summary of Recorded Investment by Risk Category of Portfolio Loans by Portfolio Class and Category | The recorded investment by risk category of the Portfolio loans by portfolio class and category at December 31, 2015 and December 31, 2014 is as follows:
| December 31, 2015
(in thousands) | Pass (1-6) |  | Watch (7) |  | Substandard (8) |  | Doubtful (9) |  | Total
Commercial and industrial | $ | 1,356,864 |  |  | $ | 90,370 |  |  | $ | 37,093 |  |  | $ | — |  |  | $ | 1,484,327 |
Real estate: |  |  |  |  |  |  |  |  |
Commercial - investor owned | 403,820 |  |  | 18,868 |  |  | 5,376 |  |  | — |  |  | 428,064 |
Commercial - owner occupied | 314,791 |  |  | 24,727 |  |  | 3,441 |  |  | — |  |  | 342,959 |
Construction and land development | 146,601 |  |  | 10,114 |  |  | 4,346 |  |  | — |  |  | 161,061 |
Residential | 188,269 |  |  | 5,138 |  |  | 3,091 |  |  | — |  |  | 196,498 |
Consumer and other | 131,060 |  |  | 721 |  |  | 6,047 |  |  | — |  |  | 137,828 |
Total | $ | 2,541,405 |  |  | $ | 149,938 |  |  | $ | 59,394 |  |  | $ | — |  |  | $ | 2,750,737 |
| December 31, 2014
(in thousands) | Pass (1-6) |  | Watch (7) |  | Substandard (8) |  | Doubtful (9) |  | Total
Commercial and industrial | $ | 1,161,979 |  |  | $ | 62,315 |  |  | $ | 40,193 |  |  | $ | — |  |  | $ | 1,264,487 |
Real estate: |  |  |  |  |  |  |  |  |
Commercial - investor owned | 361,991 |  |  | 18,640 |  |  | 16,120 |  |  | — |  |  | 396,751 |
Commercial - owner occupied | 322,725 |  |  | 18,025 |  |  | 3,253 |  |  | — |  |  | 344,003 |
Construction and land development | 122,365 |  |  | 12,993 |  |  | 8,520 |  |  | — |  |  | 143,878 |
Residential | 168,543 |  |  | 11,012 |  |  | 5,697 |  |  | — |  |  | 185,252 |
Consumer and other | 91,827 |  |  | 5,499 |  |  | 2,219 |  |  | — |  |  | 99,545 |
Total | $ | 2,229,430 |  |  | $ | 128,484 |  |  | $ | 76,002 |  |  | $ | — |  |  | $ | 2,433,916 |

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

X
- Definition Past Due And Impaired Financing Receivables [Table Text Block] + References No definition available. + Details
Name: | efsc_PastDueAndImpairedFinancingReceivablesTableTextBlock
Namespace Prefix: | efsc_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Schedule of Accounts, Notes, Loans and Financing Receivable, Excluding Allowance for Credit Losses [Table Text Block] + References No definition available. + Details
Name: | efsc_ScheduleOfAccountsNotesLoansAndFinancingReceivableExcludingAllowanceForCreditLossesTableTextBlock
Namespace Prefix: | efsc_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Schedule of Financing Receivable, Troubled Debt Restructurings - Subsequent Defaults [Table Text Block] + References No definition available. + Details
Name: | efsc_ScheduleOfFinancingReceivableTroubledDebtRestructuringsSubsequentDefaultsTableTextBlock
Namespace Prefix: | efsc_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of financing receivables by credit quality indicator. The credit quality indicator is a statistic about the credit quality of financing receivables. Examples include, but not limited to, consumer credit risk scores, credit-rating-agency ratings, an entity's internal credit risk grades, loan-to-value ratios, collateral, collection experience and other internal metrics. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 55 -Paragraph 19 -URI http://asc.fasb.org/extlink&oid=32702940&loc=SL6953803-111525 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 29 -URI http://asc.fasb.org/extlink&oid=49124121&loc=SL6953659-111524 + Details
Name: | us-gaap_FinancingReceivableCreditQualityIndicatorsTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of impaired financing receivables. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 15 -URI http://asc.fasb.org/extlink&oid=49124121&loc=d3e5212-111524 + Details
Name: | us-gaap_ImpairedFinancingReceivablesTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of financing receivables that are past due but not impaired, financing receivables that are 90 days past due and still accruing, and financing receivables on nonaccrual status. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 7 -URI http://asc.fasb.org/extlink&oid=49124121&loc=d3e5111-111524 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 7A -URI http://asc.fasb.org/extlink&oid=49124121&loc=SL6953401-111524 + Details
Name: | us-gaap_PastDueFinancingReceivablesTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of the various types of trade accounts and notes receivable and for each the gross carrying value, allowance, and net carrying value as of the balance sheet date. Presentation is categorized by current, noncurrent and unclassified receivables. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.3,4) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
Name: | us-gaap_ScheduleOfAccountsNotesLoansAndFinancingReceivableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of the activity in the total allowance for credit losses related to financing receivables (such as loans or lease receivables) for entities that have an unclassified balance sheet, including the balance in the allowance at the beginning and end of each period, additions charged to operations, direct write-downs charged against the allowance, and recoveries of amounts previously charged off. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 11B -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=49124121&loc=SL6953423-111524 + Details
Name: | us-gaap_ScheduleOfCreditLossesRelatedToFinancingReceivablesCurrentAndNoncurrentTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of nonaccrual and past due financing receivables (such as loans and trade receivables), including: (a) the recorded investment in loans and trade receivables, if applicable, on nonaccrual status as of each balance sheet date (b) the recorded investment in loans and trade receivables, if applicable, past due 90 days or more and still accruing. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 7 -URI http://asc.fasb.org/extlink&oid=49124121&loc=d3e5111-111524 + Details
Name: | us-gaap_ScheduleOfFinancingReceivablesNonAccrualStatusTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of financing receivables and troubled debt restructurings. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 33 -URI http://asc.fasb.org/extlink&oid=49124121&loc=SL6953676-111524 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 34 -URI http://asc.fasb.org/extlink&oid=49124121&loc=SL6953682-111524 + Details
Name: | us-gaap_TroubledDebtRestructuringsOnFinancingReceivablesTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | efsc_LoansByMajorCategoryAxis=efsc_NoncoveredLoansMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |