XML 87 R65.htm IDEA: XBRL DOCUMENT
v3.25.0.1

Derivatives - Narrative (Details) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2024 | Dec. 31, 2023
Securities fair value hedges |  |
Derivative [Line Items] |  |
Fair value hedge gain (loss) | $ (2,700) | $ 2,600
Fair value hedge gain (loss) reclassified | 400 | 35
Residential mortgage fair value hedges |  |
Derivative [Line Items] |  |
Gain (loss) on derivative instruments | $ 2,300 | $ 16

X
- Definition Other Comprehensive Income (Loss), Fair Value Hedge, Gain (Loss), Before Reclassification And Tax + References No definition available. + Details
Name: | sbcf_OtherComprehensiveIncomeLossFairValueHedgeGainLossBeforeReclassificationAndTax
Namespace Prefix: | sbcf_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Other Comprehensive Income (Loss), Fair Value Hedge, Gain (Loss), Reclassification, Before Tax + References No definition available. + Details
Name: | sbcf_OtherComprehensiveIncomeLossFairValueHedgeGainLossReclassificationBeforeTax
Namespace Prefix: | sbcf_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

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 Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 815 -SubTopic 40 -Name Accounting Standards Codification -Section 50 -Paragraph 5 -Subparagraph (f) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480237/815-40-50-5 + Details
Name: | us-gaap_DerivativeLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Aggregate net gain (loss) on all derivative instruments recognized in earnings during the period, before tax effects. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4A -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480434/815-10-50-4A + Details
Name: | us-gaap_GainLossOnDerivativeInstrumentsNetPretax
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Details
Name: | us-gaap_DerivativeInstrumentRiskAxis=sbcf_SecuritiesInterestRateSwapMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DerivativeInstrumentRiskAxis=sbcf_ResidentialMortgageInterestRateSwapMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |