XML 77 R62.htm IDEA: XBRL DOCUMENT
v3.21.2

Loans and Allowance for Credit Losses - Troubled Debt Restructurings, Excluding Loans Acquired, Segregated by Class of Loans (Details) $ in Thousands | 3 Months Ended | 6 Months Ended | 12 Months Ended
--- | --- | --- | ---
Jun. 30, 2021 USD ($) loan | Mar. 31, 2021 USD ($) loan | Jun. 30, 2020 loan | Jun. 30, 2021 USD ($) loan | Jun. 30, 2020 loan | Dec. 31, 2020 USD ($) loan
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |  |  |  |
Number of loan modifications | 1 |  | 1 | 1 | 1 |
Extended Maturity and Payment Deferral | COVID-19 Pandemic |  |  |  |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |  |  |  |
Number of loan modifications |  | 43 |  |  |  | 43
Troubled debt, balance | $ |  | $ 134,500 |  |  |  | $ 134,500
Loans, Excluding Acquired Loans |  |  |  |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |  |  |  |
Number of loan modifications |  | 54 |  | 49 |  |
Troubled debt, balance | $ | $ 7,096 |  |  | $ 7,096 |  | 7,513
Loans, Excluding Acquired Loans | Accruing TDR Loans |  |  |  |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |  |  |  |
Number of loan modifications |  | 32 |  | 32 |  |
Troubled debt, balance | $ | 4,436 |  |  | $ 4,436 |  | 3,138
Loans, Excluding Acquired Loans | Nonaccrual TDR Loans |  |  |  |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |  |  |  |
Number of loan modifications |  | 22 |  | 17 |  |
Troubled debt, balance | $ | $ 2,660 |  |  | $ 2,660 |  | 4,375
Real Estate |  |  |  |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |  |  |  |
Number of loan modifications | 1 |  | 1 | 1 | 1 |
Real Estate | Loans, Excluding Acquired Loans |  |  |  |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |  |  |  |
Number of loan modifications |  | 48 |  | 45 |  |
Troubled debt, balance | $ | $ 5,146 |  |  | $ 5,146 |  | 5,260
Real Estate | Loans, Excluding Acquired Loans | Accruing TDR Loans |  |  |  |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |  |  |  |
Number of loan modifications |  | 29 |  | 31 |  |
Troubled debt, balance | $ | 3,899 |  |  | $ 3,899 |  | 2,512
Real Estate | Loans, Excluding Acquired Loans | Nonaccrual TDR Loans |  |  |  |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |  |  |  |
Number of loan modifications |  | 19 |  | 14 |  |
Troubled debt, balance | $ | 1,247 |  |  | $ 1,247 |  | 2,748
Real Estate | Single family residential |  |  |  |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |  |  |  |
Number of loan modifications |  |  | 1 |  | 1 |
Real Estate | Single family residential | Loans, Excluding Acquired Loans |  |  |  |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |  |  |  |
Number of loan modifications |  | 46 |  | 42 |  |
Troubled debt, balance | $ | 4,316 |  |  | $ 4,316 |  | 5,199
Real Estate | Single family residential | Loans, Excluding Acquired Loans | Accruing TDR Loans |  |  |  |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |  |  |  |
Number of loan modifications |  | 28 |  | 29 |  |
Troubled debt, balance | $ | 3,074 |  |  | $ 3,074 |  | 2,463
Real Estate | Single family residential | Loans, Excluding Acquired Loans | Nonaccrual TDR Loans |  |  |  |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |  |  |  |
Number of loan modifications |  | 18 |  | 13 |  |
Troubled debt, balance | $ | $ 1,242 |  |  | $ 1,242 |  | 2,736
Real Estate | Other commercial |  |  |  |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |  |  |  |
Number of loan modifications | 1 |  |  | 1 |  |
Real Estate | Other commercial | Loans, Excluding Acquired Loans |  |  |  |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |  |  |  |
Number of loan modifications |  | 2 |  | 3 |  |
Troubled debt, balance | $ | $ 830 |  |  | $ 830 |  | 61
Real Estate | Other commercial | Loans, Excluding Acquired Loans | Accruing TDR Loans |  |  |  |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |  |  |  |
Number of loan modifications |  | 1 |  | 2 |  |
Troubled debt, balance | $ | 825 |  |  | $ 825 |  | 49
Real Estate | Other commercial | Loans, Excluding Acquired Loans | Nonaccrual TDR Loans |  |  |  |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |  |  |  |
Number of loan modifications |  | 1 |  | 1 |  |
Troubled debt, balance | $ | 5 |  |  | $ 5 |  | 12
Commercial | Loans, Excluding Acquired Loans |  |  |  |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |  |  |  |
Number of loan modifications |  | 6 |  | 4 |  |
Troubled debt, balance | $ | 1,950 |  |  | $ 1,950 |  | 2,253
Commercial | Loans, Excluding Acquired Loans | Accruing TDR Loans |  |  |  |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |  |  |  |
Number of loan modifications |  | 3 |  | 1 |  |
Troubled debt, balance | $ | 537 |  |  | $ 537 |  | 626
Commercial | Loans, Excluding Acquired Loans | Nonaccrual TDR Loans |  |  |  |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |  |  |  |
Number of loan modifications |  | 3 |  | 3 |  |
Troubled debt, balance | $ | 1,413 |  |  | $ 1,413 |  | 1,627
Commercial | Commercial | Loans, Excluding Acquired Loans |  |  |  |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |  |  |  |
Number of loan modifications |  | 6 |  | 4 |  |
Troubled debt, balance | $ | 1,950 |  |  | $ 1,950 |  | 2,253
Commercial | Commercial | Loans, Excluding Acquired Loans | Accruing TDR Loans |  |  |  |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |  |  |  |
Number of loan modifications |  | 3 |  | 1 |  |
Troubled debt, balance | $ | 537 |  |  | $ 537 |  | 626
Commercial | Commercial | Loans, Excluding Acquired Loans | Nonaccrual TDR Loans |  |  |  |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |  |  |  |
Number of loan modifications |  | 3 |  | 3 |  |
Troubled debt, balance | $ | $ 1,413 |  |  | $ 1,413 |  | $ 1,627

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_FinancingReceivableModificationsLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Number of financing receivables that have been modified by troubled debt restructurings. + 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=123577603&loc=SL6953676-111524 + Details
Name: | us-gaap_FinancingReceivableModificationsNumberOfContracts2
Namespace Prefix: | us-gaap_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | duration

X
- Definition Amount 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=123577603&loc=SL6953676-111524 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 40 -Section 50 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=121585226&loc=d3e18845-111554 + Details
Name: | us-gaap_FinancingReceivableModificationsRecordedInvestment
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Details
Name: | us-gaap_LoanRestructuringModificationAxis=sfnc_ExtendedMaturityandPaymentDeferralMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_UnusualOrInfrequentItemAxis=sfnc_COVID19PandemicMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis=sfnc_LoansExcludingAcquiredLoansMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancialInstrumentPerformanceStatusAxis=us-gaap_PerformingFinancingReceivableMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancialInstrumentPerformanceStatusAxis=us-gaap_NonperformingFinancingReceivableMember
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=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: |