XML 84 R69.htm IDEA: XBRL DOCUMENT
v3.20.2

Loans and Allowance for Credit Losses - Loans by Credit Risk Rating, Segregated by Class of Loans (Details) - USD ($) $ in Thousands | Jun. 30, 2020 | Dec. 31, 2019
--- | --- | ---
Financing Receivable, Credit Quality Indicator [Line Items] |  |
2020 (YTD) | $ 67,517 |
2019 | 22,117 |
2018 | 31,928 |
2017 | 14,898 |
2016 | 11,533 |
2015 and Prior | 26,416 |
Lines of Credit (“LOC”) Amortized Cost Basis | 165,036 |
LOC Converted to Term Loans Amortized Cost Basis | 36,653 |
Total | 376,098 | $ 14,425,704
Risk Rate 1-4 |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Total |  | 14,113,275
Risk Rate 5 |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Total |  | 102,618
Risk Rate 6 |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Total |  | 209,421
Risk Rate 7 |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Total |  | 173
Risk Rate 8 |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Total |  | 217
Consumer |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Total |  | 454,496
Consumer | Risk Rate 1-4 |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Total |  | 451,829
Consumer | Risk Rate 5 |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Total |  | 0
Consumer | Risk Rate 6 |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Total |  | 2,667
Consumer | Risk Rate 7 |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Total |  | 0
Consumer | Risk Rate 8 |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Total |  | 0
Consumer | Credit cards |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
2020 (YTD) | 0 |
2019 | 0 |
2018 | 0 |
2017 | 0 |
2016 | 0 |
2015 and Prior | 0 |
Lines of Credit (“LOC”) Amortized Cost Basis | 934 |
LOC Converted to Term Loans Amortized Cost Basis | 0 |
Total | 934 | 204,802
Consumer | Credit cards | Risk Rate 1-4 |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Total |  | 204,161
Consumer | Credit cards | Risk Rate 5 |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Total |  | 0
Consumer | Credit cards | Risk Rate 6 |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Total |  | 641
Consumer | Credit cards | Risk Rate 7 |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Total |  | 0
Consumer | Credit cards | Risk Rate 8 |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Total |  | 0
Consumer | Other consumer |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
2020 (YTD) | 120 |
2019 | 556 |
2018 | 494 |
2017 | 867 |
2016 | 768 |
2015 and Prior | 100 |
Lines of Credit (“LOC”) Amortized Cost Basis | 445 |
LOC Converted to Term Loans Amortized Cost Basis | 0 |
Total | 3,350 | 249,694
Consumer | Other consumer | Risk Rate 1-4 |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Total |  | 247,668
Consumer | Other consumer | Risk Rate 5 |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Total |  | 0
Consumer | Other consumer | Risk Rate 6 |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Total |  | 2,026
Consumer | Other consumer | Risk Rate 7 |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Total |  | 0
Consumer | Other consumer | Risk Rate 8 |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Total |  | 0
Real Estate |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Total |  | 10,884,524
Real Estate | Risk Rate 1-4 |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Total |  | 10,691,728
Real Estate | Risk Rate 5 |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Total |  | 75,864
Real Estate | Risk Rate 6 |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Total |  | 116,765
Real Estate | Risk Rate 7 |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Total |  | 130
Real Estate | Risk Rate 8 |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Total |  | 37
Real Estate | Construction and development |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
2020 (YTD) | 241 |
2019 | 3,031 |
2018 | 442 |
2017 | 2,144 |
2016 | 442 |
2015 and Prior | 1,082 |
Lines of Credit (“LOC”) Amortized Cost Basis | 850 |
LOC Converted to Term Loans Amortized Cost Basis | 799 |
Total | 9,031 | 2,236,861
Real Estate | Construction and development | Risk Rate 1-4 |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Total |  | 2,229,019
Real Estate | Construction and development | Risk Rate 5 |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
2020 (YTD) | 0 |
2019 | 43 |
2018 | 17 |
2017 | 1,947 |
2016 | 20 |
2015 and Prior | 0 |
Lines of Credit (“LOC”) Amortized Cost Basis | 0 |
LOC Converted to Term Loans Amortized Cost Basis | 0 |
Total | 2,027 | 70
Real Estate | Construction and development | Risk Rate 6 |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
2020 (YTD) | 241 |
2019 | 2,988 |
2018 | 425 |
2017 | 197 |
2016 | 422 |
2015 and Prior | 1,082 |
Lines of Credit (“LOC”) Amortized Cost Basis | 850 |
LOC Converted to Term Loans Amortized Cost Basis | 799 |
Total | 7,004 | 7,735
Real Estate | Construction and development | Risk Rate 7 |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
2020 (YTD) | 0 |
2019 | 0 |
2018 | 0 |
2017 | 0 |
2016 | 0 |
2015 and Prior | 0 |
Lines of Credit (“LOC”) Amortized Cost Basis | 0 |
LOC Converted to Term Loans Amortized Cost Basis | 0 |
Total | 0 | 0
Real Estate | Construction and development | Risk Rate 8 |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Total |  | 37
Real Estate | Single family residential |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
2020 (YTD) | 321 |
2019 | 4,476 |
2018 | 4,896 |
2017 | 3,793 |
2016 | 3,314 |
2015 and Prior | 8,375 |
Lines of Credit (“LOC”) Amortized Cost Basis | 4,019 |
LOC Converted to Term Loans Amortized Cost Basis | 0 |
Total | 29,194 | 2,442,064
Real Estate | Single family residential | Risk Rate 1-4 |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Total |  | 2,394,284
Real Estate | Single family residential | Risk Rate 5 |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Total |  | 6,049
Real Estate | Single family residential | Risk Rate 6 |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Total |  | 41,601
Real Estate | Single family residential | Risk Rate 7 |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Total |  | 130
Real Estate | Single family residential | Risk Rate 8 |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Total |  | 0
Real Estate | Other commercial |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
2020 (YTD) | 53,849 |
2019 | 8,433 |
2018 | 20,525 |
2017 | 5,460 |
2016 | 5,459 |
2015 and Prior | 16,093 |
Lines of Credit (“LOC”) Amortized Cost Basis | 57,100 |
LOC Converted to Term Loans Amortized Cost Basis | 34,994 |
Total | 201,913 | 6,205,599
Real Estate | Other commercial | Risk Rate 1-4 |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Total |  | 6,068,425
Real Estate | Other commercial | Risk Rate 5 |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
2020 (YTD) | 18,591 |
2019 | 2,425 |
2018 | 11,530 |
2017 | 1,049 |
2016 | 1,349 |
2015 and Prior | 2,591 |
Lines of Credit (“LOC”) Amortized Cost Basis | 18,027 |
LOC Converted to Term Loans Amortized Cost Basis | 24,917 |
Total | 80,479 | 69,745
Real Estate | Other commercial | Risk Rate 6 |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
2020 (YTD) | 35,258 |
2019 | 6,008 |
2018 | 8,995 |
2017 | 4,411 |
2016 | 4,110 |
2015 and Prior | 13,502 |
Lines of Credit (“LOC”) Amortized Cost Basis | 39,073 |
LOC Converted to Term Loans Amortized Cost Basis | 10,077 |
Total | 121,434 | 67,429
Real Estate | Other commercial | Risk Rate 7 |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
2020 (YTD) | 0 |
2019 | 0 |
2018 | 0 |
2017 | 0 |
2016 | 0 |
2015 and Prior | 0 |
Lines of Credit (“LOC”) Amortized Cost Basis | 0 |
LOC Converted to Term Loans Amortized Cost Basis | 0 |
Total | 0 | 0
Real Estate | Other commercial | Risk Rate 8 |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Total |  | 0
Commercial |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Total |  | 2,810,970
Commercial | Risk Rate 1-4 |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Total |  | 2,694,004
Commercial | Risk Rate 5 |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Total |  | 26,754
Commercial | Risk Rate 6 |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Total |  | 89,989
Commercial | Risk Rate 7 |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Total |  | 43
Commercial | Risk Rate 8 |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Total |  | 180
Commercial | Commercial |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
2020 (YTD) | 12,965 |
2019 | 5,423 |
2018 | 5,363 |
2017 | 2,160 |
2016 | 1,401 |
2015 and Prior | 755 |
Lines of Credit (“LOC”) Amortized Cost Basis | 101,588 |
LOC Converted to Term Loans Amortized Cost Basis | 860 |
Total | 130,515 | 2,495,516
Commercial | Commercial | Risk Rate 1-4 |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Total |  | 2,384,263
Commercial | Commercial | Risk Rate 5 |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
2020 (YTD) | 3,377 |
2019 | 325 |
2018 | 478 |
2017 | 136 |
2016 | 233 |
2015 and Prior | 58 |
Lines of Credit (“LOC”) Amortized Cost Basis | 46,465 |
LOC Converted to Term Loans Amortized Cost Basis | 0 |
Total | 51,072 | 26,713
Commercial | Commercial | Risk Rate 6 |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
2020 (YTD) | 9,588 |
2019 | 5,098 |
2018 | 4,885 |
2017 | 2,024 |
2016 | 1,168 |
2015 and Prior | 697 |
Lines of Credit (“LOC”) Amortized Cost Basis | 55,123 |
LOC Converted to Term Loans Amortized Cost Basis | 860 |
Total | 79,443 | 84,317
Commercial | Commercial | Risk Rate 7 |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
2020 (YTD) | 0 |
2019 | 0 |
2018 | 0 |
2017 | 0 |
2016 | 0 |
2015 and Prior | 0 |
Lines of Credit (“LOC”) Amortized Cost Basis | 0 |
LOC Converted to Term Loans Amortized Cost Basis | 0 |
Total | 0 | 43
Commercial | Commercial | Risk Rate 8 |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Total |  | 180
Commercial | Agricultural |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
2020 (YTD) | 21 |
2019 | 198 |
2018 | 208 |
2017 | 474 |
2016 | 149 |
2015 and Prior | 11 |
Lines of Credit (“LOC”) Amortized Cost Basis | 100 |
LOC Converted to Term Loans Amortized Cost Basis | 0 |
Total | 1,161 | 315,454
Commercial | Agricultural | Risk Rate 1-4 |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Total |  | 309,741
Commercial | Agricultural | Risk Rate 5 |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
2020 (YTD) | 0 |
2019 | 86 |
2018 | 15 |
2017 | 379 |
2016 | 0 |
2015 and Prior | 0 |
Lines of Credit (“LOC”) Amortized Cost Basis | 37 |
LOC Converted to Term Loans Amortized Cost Basis | 0 |
Total | 517 | 41
Commercial | Agricultural | Risk Rate 6 |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
2020 (YTD) | 21 |
2019 | 112 |
2018 | 193 |
2017 | 95 |
2016 | 149 |
2015 and Prior | 11 |
Lines of Credit (“LOC”) Amortized Cost Basis | 63 |
LOC Converted to Term Loans Amortized Cost Basis | 0 |
Total | 644 | 5,672
Commercial | Agricultural | Risk Rate 7 |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
2020 (YTD) | 0 |
2019 | 0 |
2018 | 0 |
2017 | 0 |
2016 | 0 |
2015 and Prior | 0 |
Lines of Credit (“LOC”) Amortized Cost Basis | 0 |
LOC Converted to Term Loans Amortized Cost Basis | 0 |
Total | 0 | 0
Commercial | Agricultural | Risk Rate 8 |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Total |  | 0
Other |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Total |  | 275,714
Other | Risk Rate 1-4 |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Total |  | 275,714
Other | Risk Rate 5 |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Total |  | 0
Other | Risk Rate 6 |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Total |  | 0
Other | Risk Rate 7 |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Total |  | 0
Other | Risk Rate 8 |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Total |  | $ 0
30-89 days past due | Consumer | Credit cards |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
2020 (YTD) | 0 |
2019 | 0 |
2018 | 0 |
2017 | 0 |
2016 | 0 |
2015 and Prior | 0 |
Lines of Credit (“LOC”) Amortized Cost Basis | 672 |
LOC Converted to Term Loans Amortized Cost Basis | 0 |
Total | 672 |
30-89 days past due | Consumer | Other consumer |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
2020 (YTD) | 89 |
2019 | 446 |
2018 | 387 |
2017 | 576 |
2016 | 633 |
2015 and Prior | 71 |
Lines of Credit (“LOC”) Amortized Cost Basis | 424 |
LOC Converted to Term Loans Amortized Cost Basis | 0 |
Total | 2,626 |
30-89 days past due | Real Estate | Single family residential |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
2020 (YTD) | 321 |
2019 | 2,074 |
2018 | 1,980 |
2017 | 1,415 |
2016 | 1,796 |
2015 and Prior | 4,553 |
Lines of Credit (“LOC”) Amortized Cost Basis | 1,666 |
LOC Converted to Term Loans Amortized Cost Basis | 0 |
Total | 13,805 |
90 Days or More Past Due | Consumer | Credit cards |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
2020 (YTD) | 0 |
2019 | 0 |
2018 | 0 |
2017 | 0 |
2016 | 0 |
2015 and Prior | 0 |
Lines of Credit (“LOC”) Amortized Cost Basis | 262 |
LOC Converted to Term Loans Amortized Cost Basis | 0 |
Total | 262 |
90 Days or More Past Due | Consumer | Other consumer |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
2020 (YTD) | 31 |
2019 | 110 |
2018 | 107 |
2017 | 291 |
2016 | 135 |
2015 and Prior | 29 |
Lines of Credit (“LOC”) Amortized Cost Basis | 21 |
LOC Converted to Term Loans Amortized Cost Basis | 0 |
Total | 724 |
90 Days or More Past Due | Real Estate | Single family residential |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
2020 (YTD) | 0 |
2019 | 2,402 |
2018 | 2,916 |
2017 | 2,378 |
2016 | 1,518 |
2015 and Prior | 3,822 |
Lines of Credit (“LOC”) Amortized Cost Basis | 2,353 |
LOC Converted to Term Loans Amortized Cost Basis | 0 |
Total | $ 15,389 |

X
- Definition Amount of financing receivable originated more than five years prior to current fiscal year. + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 20 -Section 55 -Paragraph 79 -URI http://asc.fasb.org/extlink&oid=121647567&loc=SL82922352-210448 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 20 -Section 50 -Paragraph 6 -URI http://asc.fasb.org/extlink&oid=121599337&loc=SL82919232-210447 + Details
Name: | us-gaap_FinancingReceivableOriginatedFiveOrMoreYearsBeforeLatestFiscalYear
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Amount of financing receivable originated four years prior to current fiscal year. + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 20 -Section 55 -Paragraph 79 -URI http://asc.fasb.org/extlink&oid=121647567&loc=SL82922352-210448 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 20 -Section 50 -Paragraph 6 -URI http://asc.fasb.org/extlink&oid=121599337&loc=SL82919232-210447 + Details
Name: | us-gaap_FinancingReceivableOriginatedFourYearsBeforeLatestFiscalYear
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Amount of financing receivable originated in current fiscal year. + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 20 -Section 55 -Paragraph 79 -URI http://asc.fasb.org/extlink&oid=121647567&loc=SL82922352-210448 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 20 -Section 50 -Paragraph 6 -URI http://asc.fasb.org/extlink&oid=121599337&loc=SL82919232-210447 + Details
Name: | us-gaap_FinancingReceivableOriginatedInCurrentFiscalYear
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Amount of financing receivable originated in fiscal year prior to current fiscal year. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 20 -Section 50 -Paragraph 6 -URI http://asc.fasb.org/extlink&oid=121599337&loc=SL82919232-210447 Reference 2: http://www.xbrl.org/2003/role/exampleRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 20 -Section 55 -Paragraph 79 -URI http://asc.fasb.org/extlink&oid=121647567&loc=SL82922352-210448 + Details
Name: | us-gaap_FinancingReceivableOriginatedInFiscalYearBeforeLatestFiscalYear
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Amount of financing receivable originated three years prior to current fiscal year. + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 20 -Section 55 -Paragraph 79 -URI http://asc.fasb.org/extlink&oid=121647567&loc=SL82922352-210448 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 20 -Section 50 -Paragraph 6 -URI http://asc.fasb.org/extlink&oid=121599337&loc=SL82919232-210447 + Details
Name: | us-gaap_FinancingReceivableOriginatedThreeYearsBeforeLatestFiscalYear
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Amount of financing receivable originated two years prior to current fiscal year. + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 20 -Section 55 -Paragraph 79 -URI http://asc.fasb.org/extlink&oid=121647567&loc=SL82922352-210448 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 20 -Section 50 -Paragraph 6 -URI http://asc.fasb.org/extlink&oid=121599337&loc=SL82919232-210447 + Details
Name: | us-gaap_FinancingReceivableOriginatedTwoYearsBeforeLatestFiscalYear
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 No definition available. + Details
Name: | us-gaap_FinancingReceivableRecordedInvestmentLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Amount of financing receivable that can be withdrawn, repaid and redrawn. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 20 -Section 50 -Paragraph 6 -URI http://asc.fasb.org/extlink&oid=121599337&loc=SL82919232-210447 Reference 2: http://www.xbrl.org/2003/role/exampleRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 20 -Section 55 -Paragraph 79 -URI http://asc.fasb.org/extlink&oid=121647567&loc=SL82922352-210448 + Details
Name: | us-gaap_FinancingReceivableRevolving
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Amount of revolving financing receivable converted to term loan. + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 20 -Section 55 -Paragraph 79 -URI http://asc.fasb.org/extlink&oid=121647567&loc=SL82922352-210448 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 20 -Section 50 -Paragraph 6A -URI http://asc.fasb.org/extlink&oid=121599337&loc=SL120270059-210447 + Details
Name: | us-gaap_FinancingReceivableRevolvingConvertedToTermLoan
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Amount, before allowance for credit loss, of financing receivable. + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 20 -Section 55 -Paragraph 79 -URI http://asc.fasb.org/extlink&oid=121647567&loc=SL82922352-210448 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 20 -Section 50 -Paragraph 5 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=121599337&loc=SL82919230-210447 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=121647567&loc=SL82922355-210448 + Details
Name: | us-gaap_NotesReceivableGross
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

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_InternalCreditAssessmentAxis=us-gaap_DoubtfulMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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

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

X
- Details
Name: | us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis=us-gaap_CreditCardReceivablesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis=sfnc_OtherConsumerLoansMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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

X
- Details
Name: | us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis=us-gaap_ConstructionLoansMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis=srt_SingleFamilyMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis=sfnc_OtherCommercialLoansMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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

X
- Details
Name: | us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis=sfnc_CommercialLoansMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis=sfnc_AgriculturalLoansMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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

X
- Details
Name: | us-gaap_FinancingReceivablesPeriodPastDueAxis=sfnc_FinancialAsset30to89DaysPastDueMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancingReceivablesPeriodPastDueAxis=us-gaap_FinancingReceivablesEqualToGreaterThan90DaysPastDueMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |