XML 39 R27.htm IDEA: XBRL DOCUMENT
v3.19.2

Loans (Tables) - Portfolio loans, net | 6 Months Ended
--- | ---
Jun. 30, 2019
Non-covered Loans [Line Items] |
Summary of Portfolio Loans by Category | The table below shows the loan portfolio composition including carrying value categorized by loans accounted for at amortized cost, which includes our originated loans, and by loans accounted for as PCI.
(in thousands) | June 30, 2019 |  | December 31, 2018
Loans accounted for at amortized cost | $ | 5,046,182 |  |  | $ | 4,303,600 |
Loans accounted for as PCI | 103,315 |  |  | 46,401 |
Total loans | $ | 5,149,497 |  |  | $ | 4,350,001 |
At June 30, 2019, loans acquired in the Trinity acquisition included $600 million accounted for at amortized cost and $68 million accounted for as PCI. These loans were recorded at fair value with no allowance for loan losses. The table below shows the composition of the allowance for loan losses:
(in thousands) | June 30, 2019 |  | December 31, 2018
Allowance for loans accounted for at amortized cost | $ | 42,935 |  |  | $ | 42,295 |
Allowance for loans accounted for as PCI | 887 |  |  | 1,181 |
Total allowance for loan losses | $ | 43,822 |  |  | $ | 43,476 |
The following tables are not applicable to PCI loans. Below is a summary of loans by category at June 30, 2019 and December 31, 2018:
(in thousands) | June 30, 2019 |  | December 31, 2018
Commercial and industrial | $ | 2,248,571 |  |  | $ | 2,121,008 |
Real estate: |  |  |
Commercial - investor owned | 1,198,308 |  |  | 843,728 |
Commercial - owner occupied | 678,046 |  |  | 604,498 |
Construction and land development | 396,370 |  |  | 330,097 |
Residential | 395,828 |  |  | 298,944 |
Total real estate loans | 2,668,552 |  |  | 2,077,267 |
Consumer and other | 131,041 |  |  | 107,351 |
Loans, before unearned loan fees | 5,048,164 |  |  | 4,305,626 |
Unearned loan fees, net | (1,982 | ) |  | (2,026 | )
Loans, including unearned loan fees | $ | 5,046,182 |  |  | $ | 4,303,600 |
Summary of Allowance for Loan Losses and the Recorded Investment in Portfolio Loans by Class and Category Based on Impairment Method | A summary of the activity in the allowance for loan losses and the recorded investment in loans by class and category based on impairment methodology through June 30, 2019, and at December 31, 2018, is as follows:
(in thousands) | Commercial and industrial |  | CRE - investor owned |  | CRE - owner occupied |  | Construction and land development |  | Residential real estate |  | Consumer and other |  | Total
Allowance for loan losses: |  |  |  |  |  |  |  |  |  |  |  |  |
Balance at December 31, 2018 | $ | 29,039 |  |  | $ | 4,683 |  |  | $ | 4,239 |  |  | $ | 1,987 |  |  | $ | 1,616 |  |  | $ | 731 |  |  | $ | 42,295 |
Provision (provision reversal) for loan losses | 1,445 |  |  | 769 |  |  | (431 | ) |  | (252 | ) |  | (288 | ) |  | 233 |  |  | 1,476 |
Losses charged off | (1,853 | ) |  | (120 | ) |  | (36 | ) |  | (45 | ) |  | (67 | ) |  | (129 | ) |  | (2,250 | )
Recoveries | 29 |  |  | 7 |  |  | 2 |  |  | 9 |  |  | 364 |  |  | 13 |  |  | 424 |
Balance at March 31, 2019 | $ | 28,660 |  |  | $ | 5,339 |  |  | $ | 3,774 |  |  | $ | 1,699 |  |  | $ | 1,625 |  |  | $ | 848 |  |  | $ | 41,945 |
Provision (provision reversal) for loan losses | 1,781 |  |  | 364 |  |  | 591 |  |  | (216 | ) |  | (345 | ) |  | (215 | ) |  | 1,960 |
Losses charged off | (1,380 | ) |  | (431 | ) |  | — |  |  | — |  |  | (26 | ) |  | (53 | ) |  | (1,890 | )
Recoveries | 32 |  |  | 52 |  |  | 6 |  |  | 489 |  |  | 124 |  |  | 217 |  |  | 920 |
Balance at June 30, 2019 | $ | 29,093 |  |  | $ | 5,324 |  |  | $ | 4,371 |  |  | $ | 1,972 |  |  | $ | 1,378 |  |  | $ | 797 |  |  | $ | 42,935 |
(in thousands) | Commercial and industrial |  | CRE - investor owned |  | CRE - owner occupied |  | Construction and land development |  | Residential real estate |  | Consumer and other |  | Total
Balance June 30, 2019 |  |  |  |  |  |  |  |  |  |  |  |  |
Allowance for loan losses - Ending balance: |  |  |  |  |  |  |  |  |  |  |  |
Individually evaluated for impairment | $ | 2,402 |  |  | $ | 165 |  |  | $ | 9 |  |  | $ | — |  |  | $ | 23 |  |  | $ | — |  |  | $ | 2,599 |
Collectively evaluated for impairment | 26,691 |  |  | 5,159 |  |  | 4,362 |  |  | 1,972 |  |  | 1,355 |  |  | 797 |  |  | 40,336 |
Total | $ | 29,093 |  |  | $ | 5,324 |  |  | $ | 4,371 |  |  | $ | 1,972 |  |  | $ | 1,378 |  |  | $ | 797 |  |  | $ | 42,935 |
Loans - Ending balance: |  |  |  |  |  |  |  |  |  |  |  |  |  |
Individually evaluated for impairment | $ | 15,112 |  |  | $ | 1,284 |  |  | $ | 1,629 |  |  | $ | — |  |  | $ | 3,060 |  |  | $ | — |  |  | $ | 21,085 |
Collectively evaluated for impairment | 2,233,459 |  |  | 1,197,024 |  |  | 676,417 |  |  | 396,370 |  |  | 392,768 |  |  | 129,059 |  |  | 5,025,097 |
Total | $ | 2,248,571 |  |  | $ | 1,198,308 |  |  | $ | 678,046 |  |  | $ | 396,370 |  |  | $ | 395,828 |  |  | $ | 129,059 |  |  | $ | 5,046,182 |
Balance December 31, 2018 |  |  |  |  |  |  |  |  |  |  |  |  |
Allowance for loan losses - Ending balance: |  |  |  |  |  |  |  |  |  |  |  |
Individually evaluated for impairment | $ | 4,266 |  |  | $ | — |  |  | $ | 109 |  |  | $ | — |  |  | $ | 52 |  |  | $ | 26 |  |  | $ | 4,453 |
Collectively evaluated for impairment | 24,773 |  |  | 4,683 |  |  | 4,130 |  |  | 1,987 |  |  | 1,564 |  |  | 705 |  |  | 37,842 |
Total | $ | 29,039 |  |  | $ | 4,683 |  |  | $ | 4,239 |  |  | $ | 1,987 |  |  | $ | 1,616 |  |  | $ | 731 |  |  | $ | 42,295 |
Loans - Ending balance: |  |  |  |  |  |  |  |  |  |  |  |  |
Individually evaluated for impairment | $ | 12,950 |  |  | $ | 398 |  |  | $ | 2,135 |  |  | $ | — |  |  | $ | 2,277 |  |  | $ | 311 |  |  | $ | 18,071 |
Collectively evaluated for impairment | 2,108,058 |  |  | 843,330 |  |  | 602,363 |  |  | 330,097 |  |  | 296,667 |  |  | 105,014 |  |  | 4,285,529 |
Total | $ | 2,121,008 |  |  | $ | 843,728 |  |  | $ | 604,498 |  |  | $ | 330,097 |  |  | $ | 298,944 |  |  | $ | 105,325 |  |  | $ | 4,303,600 |
Financing Receivable, Noncurrent, Allowance for Credit Loss [Table Text Block] | A summary of the activity in the allowance for loan losses and the recorded investment in loans by class and category based on impairment methodology through June 30, 2019, and at December 31, 2018, is as follows:
(in thousands) | Commercial and industrial |  | CRE - investor owned |  | CRE - owner occupied |  | Construction and land development |  | Residential real estate |  | Consumer and other |  | Total
Allowance for loan losses: |  |  |  |  |  |  |  |  |  |  |  |  |
Balance at December 31, 2018 | $ | 29,039 |  |  | $ | 4,683 |  |  | $ | 4,239 |  |  | $ | 1,987 |  |  | $ | 1,616 |  |  | $ | 731 |  |  | $ | 42,295 |
Provision (provision reversal) for loan losses | 1,445 |  |  | 769 |  |  | (431 | ) |  | (252 | ) |  | (288 | ) |  | 233 |  |  | 1,476 |
Losses charged off | (1,853 | ) |  | (120 | ) |  | (36 | ) |  | (45 | ) |  | (67 | ) |  | (129 | ) |  | (2,250 | )
Recoveries | 29 |  |  | 7 |  |  | 2 |  |  | 9 |  |  | 364 |  |  | 13 |  |  | 424 |
Balance at March 31, 2019 | $ | 28,660 |  |  | $ | 5,339 |  |  | $ | 3,774 |  |  | $ | 1,699 |  |  | $ | 1,625 |  |  | $ | 848 |  |  | $ | 41,945 |
Provision (provision reversal) for loan losses | 1,781 |  |  | 364 |  |  | 591 |  |  | (216 | ) |  | (345 | ) |  | (215 | ) |  | 1,960 |
Losses charged off | (1,380 | ) |  | (431 | ) |  | — |  |  | — |  |  | (26 | ) |  | (53 | ) |  | (1,890 | )
Recoveries | 32 |  |  | 52 |  |  | 6 |  |  | 489 |  |  | 124 |  |  | 217 |  |  | 920 |
Balance at June 30, 2019 | $ | 29,093 |  |  | $ | 5,324 |  |  | $ | 4,371 |  |  | $ | 1,972 |  |  | $ | 1,378 |  |  | $ | 797 |  |  | $ | 42,935 |
(in thousands) | Commercial and industrial |  | CRE - investor owned |  | CRE - owner occupied |  | Construction and land development |  | Residential real estate |  | Consumer and other |  | Total
Balance June 30, 2019 |  |  |  |  |  |  |  |  |  |  |  |  |
Allowance for loan losses - Ending balance: |  |  |  |  |  |  |  |  |  |  |  |
Individually evaluated for impairment | $ | 2,402 |  |  | $ | 165 |  |  | $ | 9 |  |  | $ | — |  |  | $ | 23 |  |  | $ | — |  |  | $ | 2,599 |
Collectively evaluated for impairment | 26,691 |  |  | 5,159 |  |  | 4,362 |  |  | 1,972 |  |  | 1,355 |  |  | 797 |  |  | 40,336 |
Total | $ | 29,093 |  |  | $ | 5,324 |  |  | $ | 4,371 |  |  | $ | 1,972 |  |  | $ | 1,378 |  |  | $ | 797 |  |  | $ | 42,935 |
Loans - Ending balance: |  |  |  |  |  |  |  |  |  |  |  |  |  |
Individually evaluated for impairment | $ | 15,112 |  |  | $ | 1,284 |  |  | $ | 1,629 |  |  | $ | — |  |  | $ | 3,060 |  |  | $ | — |  |  | $ | 21,085 |
Collectively evaluated for impairment | 2,233,459 |  |  | 1,197,024 |  |  | 676,417 |  |  | 396,370 |  |  | 392,768 |  |  | 129,059 |  |  | 5,025,097 |
Total | $ | 2,248,571 |  |  | $ | 1,198,308 |  |  | $ | 678,046 |  |  | $ | 396,370 |  |  | $ | 395,828 |  |  | $ | 129,059 |  |  | $ | 5,046,182 |
Balance December 31, 2018 |  |  |  |  |  |  |  |  |  |  |  |  |
Allowance for loan losses - Ending balance: |  |  |  |  |  |  |  |  |  |  |  |
Individually evaluated for impairment | $ | 4,266 |  |  | $ | — |  |  | $ | 109 |  |  | $ | — |  |  | $ | 52 |  |  | $ | 26 |  |  | $ | 4,453 |
Collectively evaluated for impairment | 24,773 |  |  | 4,683 |  |  | 4,130 |  |  | 1,987 |  |  | 1,564 |  |  | 705 |  |  | 37,842 |
Total | $ | 29,039 |  |  | $ | 4,683 |  |  | $ | 4,239 |  |  | $ | 1,987 |  |  | $ | 1,616 |  |  | $ | 731 |  |  | $ | 42,295 |
Loans - Ending balance: |  |  |  |  |  |  |  |  |  |  |  |  |
Individually evaluated for impairment | $ | 12,950 |  |  | $ | 398 |  |  | $ | 2,135 |  |  | $ | — |  |  | $ | 2,277 |  |  | $ | 311 |  |  | $ | 18,071 |
Collectively evaluated for impairment | 2,108,058 |  |  | 843,330 |  |  | 602,363 |  |  | 330,097 |  |  | 296,667 |  |  | 105,014 |  |  | 4,285,529 |
Total | $ | 2,121,008 |  |  | $ | 843,728 |  |  | $ | 604,498 |  |  | $ | 330,097 |  |  | $ | 298,944 |  |  | $ | 105,325 |  |  | $ | 4,303,600 |
Summary of Portfolio Loans Individually Evaluated for Impairment and Recorded Investment in Impaired Non-Covered Loans by Category | The recorded investment in nonperforming loans by category at June 30, 2019 and December 31, 2018, is as follows:
| June 30, 2019
(in thousands) | Non-accrual |  | Restructured, accruing |  | Loans over 90 days past due and still accruing interest |  | Total
Commercial and industrial | $ | 11,009 |  |  | $ | 104 |  |  | $ | 3,999 |  |  | $ | 15,112 |
Real estate: |  |  |  |  |  |  |
Commercial - investor owned | 1,284 |  |  | — |  |  | — |  |  | 1,284 |
Commercial - owner occupied | 386 |  |  | — |  |  | — |  |  | 386 |
Construction and land development | — |  |  | — |  |  | — |  |  | — |
Residential | 2,980 |  |  | 80 |  |  | — |  |  | 3,060 |
Consumer and other | — |  |  | — |  |  | — |  |  | — |
Total | $ | 15,659 |  |  | $ | 184 |  |  | $ | 3,999 |  |  | $ | 19,842 |
| December 31, 2018
(in thousands) | Non-accrual |  | Restructured, accruing |  | Total
Commercial and industrial | $ | 12,805 |  |  | $ | 145 |  |  | $ | 12,950 |
Real estate: |  |  |  |  |
Commercial - investor owned | 398 |  |  | — |  |  | 398 |
Commercial - owner occupied | 808 |  |  | — |  |  | 808 |
Construction and land development | — |  |  | — |  |  | — |
Residential | 2,197 |  |  | 80 |  |  | 2,277 |
Consumer and other | 312 |  |  | — |  |  | 312 |
Total | $ | 16,520 |  |  | $ | 225 |  |  | $ | 16,745 |
A summary of nonperforming loans individually evaluated for impairment by category at June 30, 2019 and December 31, 2018, and the income recognized on impaired loans is as follows:
| June 30, 2019
(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 | $ | 28,835 |  |  | $ | 6,826 |  |  | $ | 8,286 |  |  | $ | 15,112 |  |  | $ | 2,402 |  |  | $ | 16,728 |
Real estate: |  |  |  |  |  |  |  |  |  |  |
Commercial - investor owned | 1,948 |  |  | 459 |  |  | 825 |  |  | 1,284 |  |  | 165 |  |  | 1,460 |
Commercial - owner occupied | 405 |  |  | 231 |  |  | 155 |  |  | 386 |  |  | 9 |  |  | 393 |
Construction and land development | — |  |  | — |  |  | — |  |  | — |  |  | — |  |  | — |
Residential | 3,069 |  |  | 2,928 |  |  | 132 |  |  | 3,060 |  |  | 23 |  |  | 1,869 |
Consumer and other | — |  |  | — |  |  | — |  |  | — |  |  | — |  |  | — |
Total | $ | 34,257 |  |  | $ | 10,444 |  |  | $ | 9,398 |  |  | $ | 19,842 |  |  | $ | 2,599 |  |  | $ | 20,450 |
| December 31, 2018
(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 | $ | 21,893 |  |  | $ | 3,294 |  |  | $ | 9,656 |  |  | $ | 12,950 |  |  | $ | 4,266 |  |  | $ | 13,827 |
Real estate: |  |  |  |  |  |  |  |  |  |  |
Commercial - investor owned | 553 |  |  | 398 |  |  | — |  |  | 398 |  |  | — |  |  | 277 |
Commercial - owner occupied | 847 |  |  | 472 |  |  | 336 |  |  | 808 |  |  | 109 |  |  | 691 |
Construction and land development | — |  |  | — |  |  | — |  |  | — |  |  | — |  |  | — |
Residential | 2,425 |  |  | 1,659 |  |  | 618 |  |  | 2,277 |  |  | 52 |  |  | 778 |
Consumer and other | 329 |  |  | — |  |  | 312 |  |  | 312 |  |  | 26 |  |  | — |
Total | $ | 26,047 |  |  | $ | 5,823 |  |  | $ | 10,922 |  |  | $ | 16,745 |  |  | $ | 4,453 |  |  | $ | 15,573 |
| Three months ended June 30, |  | Six months ended June 30,
(in thousands) | 2019 |  | 2018 |  | 2019 |  | 2018
Total interest income that would have been recognized under original terms | $ | 210 |  |  | $ | 467 |  |  | $ | 647 |  |  | $ | 1,001 |
Total cash received and recognized as interest income on non-accrual loans | 123 |  |  | 78 |  |  | 185 |  |  | 89 |
Total interest income recognized on accruing, impaired loans | 110 |  |  | 13 |  |  | 113 |  |  | 23 |
Summary of Recorded Investment by Category for Portfolio Loans Restructured | There were no loans restructured during the three and six months ended June 30, 2018. The recorded investment by category for the portfolio loans that have been restructured during the three and six months ended June 30, 2019, is as follows:
| June 30, 2019
(in thousands, except for number of loans) | Number of loans |  | Pre-Modification Outstanding Recorded Balance |  | Post-Modification Outstanding Recorded Balance
Real estate: |  |  |  |  |
Commercial - owner occupied | 1 |  |  | 188 |  |  | 188 |
Residential | 2 |  |  | 332 |  |  | 332 |
Total | 3 |  |  | $ | 520 |  |  | $ | 520 |
Summary of Recorded Investment by Category for Portfolio Loans Restructured and Subsequently Defaulted | Restructured loans that subsequently defaulted during the three and six months ended June 30, 2019 included one commercial and industrial loan with a recorded balance of $272,000. There were no troubled debt restructured loans that subsequently defaulted during the three and six months ended June 30, 2018.
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 loans by portfolio class and category at June 30, 2019 and December 31, 2018, is shown below.
| June 30, 2019
(in thousands) | 30-89 Days Past Due |  | 90 or More Days Past Due |  | Total Past Due |  | Current |  | Total
Commercial and industrial | $ | 6,682 |  |  | $ | 12,562 |  |  | $ | 19,244 |  |  | $ | 2,229,327 |  |  | $ | 2,248,571 |
Real estate: |  |  |  |  |  |  |  |  |
Commercial - investor owned | 1,647 |  |  | 1,096 |  |  | 2,743 |  |  | 1,195,565 |  |  | 1,198,308 |
Commercial - owner occupied | 415 |  |  | 155 |  |  | 570 |  |  | 677,476 |  |  | 678,046 |
Construction and land development | 41 |  |  | — |  |  | 41 |  |  | 396,329 |  |  | 396,370 |
Residential | 1,147 |  |  | 2,649 |  |  | 3,796 |  |  | 392,032 |  |  | 395,828 |
Consumer and other | 131 |  |  | — |  |  | 131 |  |  | 128,928 |  |  | 129,059 |
Total | $ | 10,063 |  |  | $ | 16,462 |  |  | $ | 26,525 |  |  | $ | 5,019,657 |  |  | $ | 5,046,182 |
| December 31, 2018
(in thousands) | 30-89 Days Past Due |  | 90 or More Days Past Due |  | Total Past Due |  | Current |  | Total
Commercial and industrial | $ | 66 |  |  | $ | 10,257 |  |  | $ | 10,323 |  |  | $ | 2,110,685 |  |  | $ | 2,121,008 |
Real estate: |  |  |  |  |  |  |  |  |
Commercial - investor owned | 529 |  |  | 127 |  |  | 656 |  |  | 843,072 |  |  | 843,728 |
Commercial - owner occupied | 292 |  |  | 565 |  |  | 857 |  |  | 603,641 |  |  | 604,498 |
Construction and land development | 6 |  |  | — |  |  | 6 |  |  | 330,091 |  |  | 330,097 |
Residential | 709 |  |  | 897 |  |  | 1,606 |  |  | 297,338 |  |  | 298,944 |
Consumer and other | — |  |  | 312 |  |  | 312 |  |  | 105,013 |  |  | 105,325 |
Total | $ | 1,602 |  |  | $ | 12,158 |  |  | $ | 13,760 |  |  | $ | 4,289,840 |  |  | $ | 4,303,600 |
Summary of Recorded Investment by Risk Category of Portfolio Loans by Portfolio Class and Category | The recorded investment by risk category of the loans by portfolio class and category at June 30, 2019, which is based upon the most recent analysis performed, and December 31, 2018, is as follows:
| June 30, 2019
(in thousands) | Pass (1-6) |  | Watch (7) |  | Classified (8 & 9) |  | Total
Commercial and industrial | $ | 2,035,655 |  |  | $ | 142,288 |  |  | $ | 70,628 |  |  | $ | 2,248,571 |
Real estate: |  |  |  |  |  |  |
Commercial - investor owned | 1,175,396 |  |  | 19,884 |  |  | 3,028 |  |  | 1,198,308 |
Commercial - owner occupied | 648,403 |  |  | 26,463 |  |  | 3,180 |  |  | 678,046 |
Construction and land development | 390,532 |  |  | 5,774 |  |  | 64 |  |  | 396,370 |
Residential | 387,610 |  |  | 3,011 |  |  | 5,207 |  |  | 395,828 |
Consumer and other | 129,059 |  |  | — |  |  | — |  |  | 129,059 |
Total | $ | 4,766,655 |  |  | $ | 197,420 |  |  | $ | 82,107 |  |  | $ | 5,046,182 |
| December 31, 2018
(in thousands) | Pass (1-6) |  | Watch (7) |  | Classified (8 & 9) |  | Total
Commercial and industrial | $ | 1,927,782 |  |  | $ | 146,033 |  |  | $ | 47,193 |  |  | $ | 2,121,008 |
Real estate: |  |  |  |  |  |  |
Commercial - investor owned | 823,128 |  |  | 15,083 |  |  | 5,517 |  |  | 843,728 |
Commercial - owner occupied | 563,003 |  |  | 31,834 |  |  | 9,661 |  |  | 604,498 |
Construction and land development | 318,451 |  |  | 11,580 |  |  | 66 |  |  | 330,097 |
Residential | 287,802 |  |  | 4,232 |  |  | 6,910 |  |  | 298,944 |
Consumer and other | 105,007 |  |  | 6 |  |  | 312 |  |  | 105,325 |
Total | $ | 4,025,173 |  |  | $ | 208,768 |  |  | $ | 69,659 |  |  | $ | 4,303,600 |

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 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/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 20 -Section 50 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=119407570&loc=SL82919230-210447 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 29 -URI http://asc.fasb.org/extlink&oid=118936363&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://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 15 -URI http://asc.fasb.org/extlink&oid=118936363&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 aging analysis for financing receivable. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 20 -Section 50 -Paragraph 14 -URI http://asc.fasb.org/extlink&oid=119407570&loc=SL82919253-210447 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 7A -URI http://asc.fasb.org/extlink&oid=118936363&loc=SL6953401-111524 Reference 3: http://www.xbrl.org/2003/role/exampleRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 20 -Section 55 -Paragraph 80 -URI http://asc.fasb.org/extlink&oid=118955255&loc=SL82922355-210448 Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 7 -URI http://asc.fasb.org/extlink&oid=118936363&loc=d3e5111-111524 + Details
Name: | us-gaap_PastDueFinancingReceivablesTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of allowance for credit loss of financing receivable, classified as current. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 11B -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=118936363&loc=SL6953423-111524 Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 20 -Section 50 -Paragraph 13 -URI http://asc.fasb.org/extlink&oid=119407570&loc=SL82919249-210447 + Details
Name: | us-gaap_ScheduleOfCreditLossesForFinancingReceivablesCurrentTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of allowance for credit loss of financing receivable, classified as noncurrent. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 11B -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=118936363&loc=SL6953423-111524 Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 20 -Section 50 -Paragraph 13 -URI http://asc.fasb.org/extlink&oid=119407570&loc=SL82919249-210447 + Details
Name: | us-gaap_ScheduleOfCreditLossesRelatedToFinancingReceivablesNoncurrentTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of financing receivable modified as troubled debt restructuring. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 33 -URI http://asc.fasb.org/extlink&oid=118936363&loc=SL6953676-111524 Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 34 -URI http://asc.fasb.org/extlink&oid=118936363&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: |