XML 110 R93.htm IDEA: XBRL DOCUMENT
v3.23.2

Undivided Profits (Details) $ in Millions | 6 Months Ended
--- | ---
Jun. 30, 2023 USD ($)
Equity [Abstract] |
Threshold percentage of net profits exceeded by dividends declared, any calendar year (as percent) | 75.00%
Threshold percentage of net profits exceeded by dividends declared, combined with preceding year (as percent) | 75.00%
Statutory accounting practices, statutory amount available for dividend payments without regulatory approval | $ 285.9
Tier 1 leverage capital required to be well capitalized to average assets (as percent) | 0.05
Tier 1 risk-based capital required to be well capitalized to risk weighted assets (as percent) | 0.08
Capital required to be well-capitalized to risk weighted assets (as percent) | 0.10
Common equity Tier 1 ratio required to be well capitalized (as percent) | 6.50%
Capital conservation buffer (as percent) | 2.50%
CET1 ratio (as percent) | 0.1192

X
- Definition An additional amount held in risk-based capital designed to ensure that banks build up capital buffers outside periods of stress which can be drawn down as losses are incurred. The requirement is based on simple capital conservation rules designed to avoid breaches of minimum capital requirements. + References No definition available. + Details
Name: | sfnc_CapitalConservationBuffer
Namespace Prefix: | sfnc_
Data Type: | dtr-types1:percentItemType
Balance Type: | na
Period Type: | instant

X
- Definition Common Equity Tier 1 ratio as defined in the regulations required to be well capitalized. + References No definition available. + Details
Name: | sfnc_CommonEquityTier1RatioRequiredToBeWellCapitalized
Namespace Prefix: | sfnc_
Data Type: | dtr-types1:percentItemType
Balance Type: | na
Period Type: | instant

X
- Definition Threshold by which dividends declared exceeds a percentage of net profits in any calendar year. + References No definition available. + Details
Name: | sfnc_ThresholdPercentageOfNetProfitsExceededByDividendsDeclaredAnyCalendarYear
Namespace Prefix: | sfnc_
Data Type: | dtr-types1:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition Threshold by which dividends declared exceeds a percentage of net profits in any calendar year, combined with percentage of retained net profits of the preceding year. + References No definition available. + Details
Name: | sfnc_ThresholdPercentageOfNetProfitsExceededByDividendsDeclaredCombinedWithPrecedingYear
Namespace Prefix: | sfnc_
Data Type: | dtr-types1:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition Ratio of minimum total risk-based capital to risk-weighted assets categorized as well capitalized as defined by regulatory framework for prompt corrective action. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 942 -SubTopic 505 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Subparagraph (c)(1) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480696/942-505-50-1 + Details
Name: | us-gaap_CapitalRequiredToBeWellCapitalizedToRiskWeightedAssets
Namespace Prefix: | us-gaap_
Data Type: | xbrli:pureItemType
Balance Type: | na
Period Type: | instant

X
- Definition Ratio of total risk-based capital to risk-weighted assets as defined by regulatory framework. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 942 -SubTopic 505 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Subparagraph (c)(1) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480696/942-505-50-1 + Details
Name: | us-gaap_CapitalToRiskWeightedAssets
Namespace Prefix: | us-gaap_
Data Type: | xbrli:pureItemType
Balance Type: | na
Period Type: | instant

X
- References No definition available. + Details
Name: | us-gaap_EquityAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Amount of dividends that can be declared or paid without approval of regulatory agency. + References No definition available. + Details
Name: | us-gaap_StatutoryAccountingPracticesStatutoryAmountAvailableForDividendPaymentsWithoutRegulatoryApproval
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Ratio of minimum Tier 1 leverage capital to average assets categorized as well capitalized as defined by regulatory framework for prompt corrective action. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 942 -SubTopic 505 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Subparagraph (c)(1) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480696/942-505-50-1 + Details
Name: | us-gaap_TierOneLeverageCapitalRequiredToBeWellCapitalizedToAverageAssets
Namespace Prefix: | us-gaap_
Data Type: | xbrli:pureItemType
Balance Type: | na
Period Type: | instant

X
- Definition Ratio of minimum Tier 1 risk-based capital to risk-weighted assets categorized as well capitalized as defined by regulatory framework for prompt corrective action. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 942 -SubTopic 505 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Subparagraph (c)(1) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480696/942-505-50-1 + Details
Name: | us-gaap_TierOneRiskBasedCapitalRequiredToBeWellCapitalizedToRiskWeightedAssets
Namespace Prefix: | us-gaap_
Data Type: | xbrli:pureItemType
Balance Type: | na
Period Type: | instant