$SBCF
Seacoast Banking Corporation of Florida Stock $sbcf

$sbcf Overview Financials Valuation SEC Filings Company Website

2023 Q1 Form 10-K Financial Statement

#000073070823000017 Filed on March 01, 2023

Income Statement

Concept	2023 Q1	2022 Q4	2022
Revenue	$158.0M		$380.5M
YoY Change	101.95%		33.86%
Cost Of Revenue
YoY Change
Gross Profit
YoY Change
Gross Profit Margin
Selling, General & Admin
YoY Change
% of Gross Profit
Research & Development
YoY Change
% of Gross Profit
Depreciation & Amortization	$2.066M	$1.848M	$6.115M
YoY Change	45.49%	32.0%	11.55%
% of Gross Profit
Operating Expenses
YoY Change
Operating Profit
YoY Change
Interest Expense	$26.84M		$14.33M
YoY Change	1469.53%		74.38%
% of Operating Profit
Other Income/Expense, Net
YoY Change
Pretax Income	$14.52M	$31.72M	$138.1M
YoY Change	-45.03%	-28.99%	-12.98%
Income Tax	$2.697M	$7.794M	$31.63M
% Of Pretax Income	18.57%	24.57%	22.9%
Net Earnings	$11.83M	$23.93M	$106.5M
YoY Change	-42.55%	-34.14%	-14.39%
Net Earnings / Revenue	7.49%		27.99%
Basic Earnings Per Share	$0.15		$1.67
Diluted Earnings Per Share	$0.15	$335.2K	$1.657M
COMMON SHARES
Basic Shares Outstanding	84.53M shares		63.71M shares
Diluted Shares Outstanding	80.72M shares		64.26M shares

Balance Sheet

Concept	2023 Q1	2022 Q4	2022
SHORT-TERM ASSETS
Cash & Short-Term Investments
YoY Change
Cash & Equivalents	$791.2M	$201.9M
Short-Term Investments
Other Short-Term Assets
YoY Change
Inventory
Prepaid Expenses
Receivables
Other Receivables
Total Short-Term Assets
YoY Change
LONG-TERM ASSETS
Property, Plant & Equipment	$116.5M	$116.9M	$116.9M
YoY Change	56.16%	61.44%	8.53%
Goodwill	$728.4M	$480.3M
YoY Change	154.15%	90.49%
Intangibles	$117.4M	$75.45M
YoY Change	444.85%	408.26%
Long-Term Investments
YoY Change
Other Assets	$124.3M	$94.46M	$94.46M
YoY Change	-35.52%	-53.21%	246.0%
Total Long-Term Assets
YoY Change
TOTAL ASSETS
Total Short-Term Assets
Total Long-Term Assets
Total Assets	$15.26B	$12.15B	$12.15B
YoY Change	39.9%	25.45%	25.45%
SHORT-TERM LIABILITIES
YoY Change
Accounts Payable
YoY Change
Accrued Expenses			$50.77M
YoY Change			32.56%
Deferred Revenue
YoY Change
Short-Term Debt	$267.6M	$172.0M	$172.0M
YoY Change	121.3%	41.47%	41.47%
Long-Term Debt Due
YoY Change
Total Short-Term Liabilities	$267.6M	$172.0M	$50.77M
YoY Change	121.3%	41.47%	32.56%
LONG-TERM LIABILITIES
Long-Term Debt	$105.8M	$84.53M	$84.53M
YoY Change	47.53%	18.06%	18.06%
Other Long-Term Liabilities	$136.2M	$149.8M	$149.8M
YoY Change	21.48%	36.34%	109.26%
Total Long-Term Liabilities	$242.0M	$234.4M	$234.4M
YoY Change	115.84%	113.26%	63.66%
TOTAL LIABILITIES
Total Short-Term Liabilities	$267.6M	$172.0M	$50.77M
Total Long-Term Liabilities	$242.0M	$234.4M	$234.4M
Total Liabilities	$13.20B	$10.54B	$10.54B
YoY Change	38.29%	25.89%	25.89%
SHAREHOLDERS EQUITY
Retained Earnings	$421.3M	$423.9M
YoY Change		18.2%
Common Stock	$8.461M	$7.162M
YoY Change	38.16%	22.43%
Preferred Stock
YoY Change
Treasury Stock (at cost)	$13.11M	$13.02M
YoY Change		23.18%
Treasury Stock Shares		481.3K shares
Shareholders Equity	$2.051B	$1.608B	$1.608B
YoY Change
Total Liabilities & Shareholders Equity	$15.26B	$12.15B	$12.15B
YoY Change	39.9%	25.45%	25.45%

Cashflow Statement

Concept	2023 Q1	2022 Q4	2022
OPERATING ACTIVITIES
Net Income	$11.83M	$23.93M	$106.5M
YoY Change	-42.55%	-34.14%	-14.39%
Depreciation, Depletion And Amortization	$2.066M	$1.848M	$6.115M
YoY Change	45.49%	32.0%	11.55%
Cash From Operating Activities	$13.05M	$48.50M	$195.9M
YoY Change	-76.08%	-2.62%	26.71%
INVESTING ACTIVITIES
Capital Expenditures	$5.812M	$846.0K	$12.65M
YoY Change	-804.48%	-132.54%	-394.07%
Acquisitions
YoY Change
Other Investing Activities	$198.5M	$384.6M	-$352.2M
YoY Change	-211.73%	-237.03%	-13.71%
Cash From Investing Activities	$192.7M	$383.8M	-$364.9M
YoY Change	-207.95%	-235.47%	-11.55%
FINANCING ACTIVITIES
Cash Dividend Paid
YoY Change
Common Stock Issuance & Retirement, Net
YoY Change
Debt Paid & Issued, Net
YoY Change
Cash From Financing Activities	$383.5M	-449.0M	-$366.8M
YoY Change	-37.0%	75.03%	-162.0%
NET CHANGE
Cash From Operating Activities	$13.05M	48.50M	$195.9M
Cash From Investing Activities	$192.7M	383.8M	-$364.9M
Cash From Financing Activities	$383.5M	-449.0M	-$366.8M
Net Change In Cash	$589.3M	-16.67M	-$535.8M
YoY Change	21.56%	-96.6%	-260.59%
FREE CASH FLOW
Cash From Operating Activities	$13.05M	$48.50M	$195.9M
Capital Expenditures	$5.812M	$846.0K	$12.65M
Free Cash Flow	$7.233M	$47.65M	$183.2M
YoY Change	-86.93%	-9.06%	15.32%

Facts In Submission

Frame	Concept Type	Concept / XBRL Key	Value	Unit
CY2022	dei	Amendment Flag AmendmentFlag	false
CY2022	dei	Document Fiscal Year Focus DocumentFiscalYearFocus	2022
CY2022	dei	Document Fiscal Period Focus DocumentFiscalPeriodFocus	FY
CY2022	dei	Entity Central Index Key EntityCentralIndexKey	0000730708
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CY2022Q4	us-gaap	Debt Securities Held To Maturity Accrued Interest After Allowance For Credit Loss Statement Of Financial Position Extensible List DebtSecuritiesHeldToMaturityAccruedInterestAfterAllowanceForCreditLossStatementOfFinancialPositionExtensibleList	http://fasb.org/us-gaap/2022#OtherAssets
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CY2022Q4	us-gaap	Derivative Liability Statement Of Financial Position Extensible Enumeration DerivativeLiabilityStatementOfFinancialPositionExtensibleEnumeration	http://fasb.org/us-gaap/2022#OtherLiabilities
CY2022Q4	us-gaap	Derivative Asset Statement Of Financial Position Extensible Enumeration DerivativeAssetStatementOfFinancialPositionExtensibleEnumeration	http://fasb.org/us-gaap/2022#OtherAssets
CY2021Q4	us-gaap	Derivative Liability Statement Of Financial Position Extensible Enumeration DerivativeLiabilityStatementOfFinancialPositionExtensibleEnumeration	http://fasb.org/us-gaap/2022#OtherLiabilities
CY2021Q4	us-gaap	Derivative Asset Statement Of Financial Position Extensible Enumeration DerivativeAssetStatementOfFinancialPositionExtensibleEnumeration	http://fasb.org/us-gaap/2022#OtherAssets
CY2021Q4	us-gaap	Operating Lease Right Of Use Asset Statement Of Financial Position Extensible List OperatingLeaseRightOfUseAssetStatementOfFinancialPositionExtensibleList	http://fasb.org/us-gaap/2022#OtherAssets
CY2022Q4	us-gaap	Operating Lease Right Of Use Asset Statement Of Financial Position Extensible List OperatingLeaseRightOfUseAssetStatementOfFinancialPositionExtensibleList	http://fasb.org/us-gaap/2022#OtherAssets
CY2021Q4	us-gaap	Operating Lease Liability Statement Of Financial Position Extensible List OperatingLeaseLiabilityStatementOfFinancialPositionExtensibleList	http://fasb.org/us-gaap/2022#OtherLiabilities
CY2022Q4	us-gaap	Operating Lease Liability Statement Of Financial Position Extensible List OperatingLeaseLiabilityStatementOfFinancialPositionExtensibleList	http://fasb.org/us-gaap/2022#OtherLiabilities
CY2020Q4	us-gaap	Operating Lease Liability Statement Of Financial Position Extensible List OperatingLeaseLiabilityStatementOfFinancialPositionExtensibleList	http://fasb.org/us-gaap/2022#OtherLiabilities
CY2022	dei	Document Type DocumentType	10-K
CY2022	dei	Document Annual Report DocumentAnnualReport	true
CY2022	dei	Document Period End Date DocumentPeriodEndDate	2022-12-31
CY2022	dei	Current Fiscal Year End Date CurrentFiscalYearEndDate	--12-31
CY2022	dei	Document Transition Report DocumentTransitionReport	false
CY2022	dei	Entity File Number EntityFileNumber	0-13660
CY2022	dei	Entity Registrant Name EntityRegistrantName	Seacoast Banking Corporation of Florida
CY2022	dei	Entity Incorporation State Country Code EntityIncorporationStateCountryCode	FL
CY2022	dei	Entity Tax Identification Number EntityTaxIdentificationNumber	59-2260678
CY2022	dei	Entity Address Address Line1 EntityAddressAddressLine1	815 Colorado Avenue,
CY2022	dei	Entity Address City Or Town EntityAddressCityOrTown	Stuart
CY2022	dei	Entity Address State Or Province EntityAddressStateOrProvince	FL
CY2022	dei	Entity Address Postal Zip Code EntityAddressPostalZipCode	34994
CY2022	dei	City Area Code CityAreaCode	(772)
CY2022	dei	Local Phone Number LocalPhoneNumber	287-4000
CY2022	dei	Security12b Title Security12bTitle	Common Stock
CY2022	dei	Trading Symbol TradingSymbol	SBCF
CY2022	dei	Security Exchange Name SecurityExchangeName	NASDAQ
CY2022	dei	Entity Well Known Seasoned Issuer EntityWellKnownSeasonedIssuer	Yes
CY2022	dei	Entity Voluntary Filers EntityVoluntaryFilers	No
CY2022	dei	Entity Current Reporting Status EntityCurrentReportingStatus	Yes
CY2022	dei	Entity Interactive Data Current EntityInteractiveDataCurrent	Yes
CY2022	dei	Entity Filer Category EntityFilerCategory	Large Accelerated Filer
CY2022	dei	Entity Small Business EntitySmallBusiness	false
CY2022	dei	Entity Emerging Growth Company EntityEmergingGrowthCompany	false
CY2022	dei	Icfr Auditor Attestation Flag IcfrAuditorAttestationFlag	true
CY2022	dei	Entity Shell Company EntityShellCompany	false
CY2022Q2	dei	Entity Public Float EntityPublicFloat	2028996312	usd
CY2023Q1	dei	Entity Common Stock Shares Outstanding EntityCommonStockSharesOutstanding	84526816	shares
CY2022	dei	Auditor Name AuditorName	Crowe LLP
CY2022	dei	Auditor Location AuditorLocation	Fort Lauderdale, Florida
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CY2022	us-gaap	Interest Income Securities Tax Exempt InterestIncomeSecuritiesTaxExempt	546000	usd
CY2021	us-gaap	Interest Income Securities Tax Exempt InterestIncomeSecuritiesTaxExempt	577000	usd
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CY2022	sbcf	Interest On Federal Funds Sold And Other Investments InterestOnFederalFundsSoldAndOtherInvestments	7620000	usd
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CY2022	us-gaap	Interest Expense Savings Deposits InterestExpenseSavingsDeposits	7318000	usd
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CY2020	us-gaap	Interest Expense Time Deposits InterestExpenseTimeDeposits	13365000	usd
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CY2022	us-gaap	Interest Expense Federal Home Loan Bank And Federal Reserve Bank Advances Short Term InterestExpenseFederalHomeLoanBankAndFederalReserveBankAdvancesShortTerm	330000	usd
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CY2022	us-gaap	Interest Expense Subordinated Notes And Debentures InterestExpenseSubordinatedNotesAndDebentures	3056000	usd
CY2021	us-gaap	Interest Expense Subordinated Notes And Debentures InterestExpenseSubordinatedNotesAndDebentures	1685000	usd
CY2020	us-gaap	Interest Expense Subordinated Notes And Debentures InterestExpenseSubordinatedNotesAndDebentures	2184000	usd
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CY2022	sbcf	Noninterest Income Servicing Charges NoninterestIncomeServicingCharges	13709000	usd
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CY2020	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	100582000	usd
CY2022	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	31629000	usd
CY2021	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	34335000	usd
CY2020	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	22818000	usd
CY2022	us-gaap	Net Income Loss NetIncomeLoss	106507000	usd
CY2021	us-gaap	Net Income Loss NetIncomeLoss	124403000	usd
CY2020	us-gaap	Net Income Loss NetIncomeLoss	77764000	usd
CY2022	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	1.66
CY2021	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	2.18
CY2020	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	1.44
CY2022	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	1.67
CY2021	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	2.20
CY2020	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	1.45
CY2022	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	64264000	shares
CY2021	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	57088000	shares
CY2020	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	53930000	shares
CY2022	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	63707000	shares
CY2021	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	56586000	shares
CY2020	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	53502000	shares
CY2022	us-gaap	Net Income Loss NetIncomeLoss	106507000	usd
CY2021	us-gaap	Net Income Loss NetIncomeLoss	124403000	usd
CY2020	us-gaap	Net Income Loss NetIncomeLoss	77764000	usd
CY2022	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodTax	-57100000	usd
CY2021	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodTax	-8200000	usd
CY2020	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodTax	5000000	usd
CY2022	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax	-181096000	usd
CY2021	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax	-27377000	usd
CY2020	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax	16628000	usd
CY2022	us-gaap	Oci Debt Securities Available For Sale Transfer To Held To Maturity Adjustment From Aoci For Amortization Of Gain Loss Tax OciDebtSecuritiesAvailableForSaleTransferToHeldToMaturityAdjustmentFromAociForAmortizationOfGainLossTax	-7000	usd
CY2021	us-gaap	Oci Debt Securities Available For Sale Transfer To Held To Maturity Adjustment From Aoci For Amortization Of Gain Loss Tax OciDebtSecuritiesAvailableForSaleTransferToHeldToMaturityAdjustmentFromAociForAmortizationOfGainLossTax	21000	usd
CY2020	us-gaap	Oci Debt Securities Available For Sale Transfer To Held To Maturity Adjustment From Aoci For Amortization Of Gain Loss Tax OciDebtSecuritiesAvailableForSaleTransferToHeldToMaturityAdjustmentFromAociForAmortizationOfGainLossTax	40000	usd
CY2022	us-gaap	Oci Debt Securities Available For Sale Transfer To Held To Maturity Adjustment From Aoci For Amortization Of Gain Loss After Tax OciDebtSecuritiesAvailableForSaleTransferToHeldToMaturityAdjustmentFromAociForAmortizationOfGainLossAfterTax	20000	usd
CY2021	us-gaap	Oci Debt Securities Available For Sale Transfer To Held To Maturity Adjustment From Aoci For Amortization Of Gain Loss After Tax OciDebtSecuritiesAvailableForSaleTransferToHeldToMaturityAdjustmentFromAociForAmortizationOfGainLossAfterTax	-86000	usd
CY2020	us-gaap	Oci Debt Securities Available For Sale Transfer To Held To Maturity Adjustment From Aoci For Amortization Of Gain Loss After Tax OciDebtSecuritiesAvailableForSaleTransferToHeldToMaturityAdjustmentFromAociForAmortizationOfGainLossAfterTax	-184000	usd
CY2021	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesTax	-85000	usd
CY2020	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesTax	314000	usd
CY2022	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesNetOfTax	0	usd
CY2021	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesNetOfTax	-278000	usd
CY2020	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesNetOfTax	782000	usd
CY2022	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss After Reclassification Tax Parent OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationTaxParent	-26000	usd
CY2021	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss After Reclassification Tax Parent OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationTaxParent	120000	usd
CY2020	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss After Reclassification Tax Parent OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationTaxParent	42000	usd
CY2022	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss After Reclassification And Tax Parent OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationAndTaxParent	77000	usd
CY2021	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss After Reclassification And Tax Parent OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationAndTaxParent	-351000	usd
CY2020	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss After Reclassification And Tax Parent OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationAndTaxParent	-125000	usd
CY2022	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	-181039000	usd
CY2021	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	-27364000	usd
CY2020	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	15905000	usd
CY2022	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	-74532000	usd
CY2021	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	97039000	usd
CY2020	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	93669000	usd
CY2022Q4	us-gaap	Cash And Due From Banks CashAndDueFromBanks	120748000	usd
CY2021Q4	us-gaap	Cash And Due From Banks CashAndDueFromBanks	238750000	usd
CY2022Q4	us-gaap	Interest Bearing Deposits In Banks InterestBearingDepositsInBanks	81192000	usd
CY2021Q4	us-gaap	Interest Bearing Deposits In Banks InterestBearingDepositsInBanks	498979000	usd
CY2022Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	201940000	usd
CY2021Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	737729000	usd
CY2022Q4	sbcf	Time Deposits With Other Banks TimeDepositsWithOtherBanks	3236000	usd
CY2021Q4	sbcf	Time Deposits With Other Banks TimeDepositsWithOtherBanks	0	usd
CY2022Q4	us-gaap	Debt Securities Available For Sale Excluding Accrued Interest DebtSecuritiesAvailableForSaleExcludingAccruedInterest	1871742000	usd
CY2021Q4	us-gaap	Debt Securities Available For Sale Excluding Accrued Interest DebtSecuritiesAvailableForSaleExcludingAccruedInterest	1644319000	usd
CY2022Q4	us-gaap	Held To Maturity Securities Fair Value HeldToMaturitySecuritiesFairValue	617700000	usd
CY2021Q4	us-gaap	Held To Maturity Securities Fair Value HeldToMaturitySecuritiesFairValue	627400000	usd
CY2022Q4	us-gaap	Debt Securities Held To Maturity Excluding Accrued Interest After Allowance For Credit Loss DebtSecuritiesHeldToMaturityExcludingAccruedInterestAfterAllowanceForCreditLoss	747408000	usd
CY2021Q4	us-gaap	Debt Securities Held To Maturity Excluding Accrued Interest After Allowance For Credit Loss DebtSecuritiesHeldToMaturityExcludingAccruedInterestAfterAllowanceForCreditLoss	638640000	usd
CY2022Q4	us-gaap	Investments Investments	2619150000	usd
CY2021Q4	us-gaap	Investments Investments	2282959000	usd
CY2022Q4	us-gaap	Loans Receivable Held For Sale Net Not Part Of Disposal Group LoansReceivableHeldForSaleNetNotPartOfDisposalGroup	3151000	usd
CY2021Q4	us-gaap	Loans Receivable Held For Sale Net Not Part Of Disposal Group LoansReceivableHeldForSaleNetNotPartOfDisposalGroup	31791000	usd
CY2022Q4	us-gaap	Financing Receivable Excluding Accrued Interest Before Allowance For Credit Loss FinancingReceivableExcludingAccruedInterestBeforeAllowanceForCreditLoss	8144724000	usd
CY2021Q4	us-gaap	Financing Receivable Excluding Accrued Interest Before Allowance For Credit Loss FinancingReceivableExcludingAccruedInterestBeforeAllowanceForCreditLoss	5925029000	usd
CY2022Q4	us-gaap	Financing Receivable Allowance For Credit Loss Excluding Accrued Interest FinancingReceivableAllowanceForCreditLossExcludingAccruedInterest	113895000	usd
CY2021Q4	us-gaap	Financing Receivable Allowance For Credit Loss Excluding Accrued Interest FinancingReceivableAllowanceForCreditLossExcludingAccruedInterest	83315000	usd
CY2022Q4	us-gaap	Financing Receivable Excluding Accrued Interest After Allowance For Credit Loss FinancingReceivableExcludingAccruedInterestAfterAllowanceForCreditLoss	8030829000	usd
CY2021Q4	us-gaap	Financing Receivable Excluding Accrued Interest After Allowance For Credit Loss FinancingReceivableExcludingAccruedInterestAfterAllowanceForCreditLoss	5841714000	usd
CY2022Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	116892000	usd
CY2021Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	72404000	usd
CY2022Q4	us-gaap	Other Real Estate OtherRealEstate	2301000	usd
CY2021Q4	us-gaap	Other Real Estate OtherRealEstate	13618000	usd
CY2022Q4	us-gaap	Goodwill Goodwill	480319000	usd
CY2021Q4	us-gaap	Goodwill Goodwill	252154000	usd
CY2022Q4	us-gaap	Intangible Assets Net Excluding Goodwill IntangibleAssetsNetExcludingGoodwill	75451000	usd
CY2021Q4	us-gaap	Intangible Assets Net Excluding Goodwill IntangibleAssetsNetExcludingGoodwill	14845000	usd
CY2022Q4	us-gaap	Bank Owned Life Insurance BankOwnedLifeInsurance	237824000	usd
CY2021Q4	us-gaap	Bank Owned Life Insurance BankOwnedLifeInsurance	205041000	usd
CY2022Q4	us-gaap	Deferred Income Tax Assets Net DeferredIncomeTaxAssetsNet	94457000	usd
CY2021Q4	us-gaap	Deferred Income Tax Assets Net DeferredIncomeTaxAssetsNet	27321000	usd
CY2022Q4	us-gaap	Other Assets OtherAssets	280212000	usd
CY2021Q4	us-gaap	Other Assets OtherAssets	201857000	usd
CY2022Q4	us-gaap	Assets Assets	12145762000	usd
CY2021Q4	us-gaap	Assets Assets	9681433000	usd
CY2022Q4	us-gaap	Noninterest Bearing Deposit Liabilities NoninterestBearingDepositLiabilities	4070973000	usd
CY2021Q4	us-gaap	Noninterest Bearing Deposit Liabilities NoninterestBearingDepositLiabilities	3075534000	usd
CY2022Q4	us-gaap	Interest Bearing Deposit Liabilities InterestBearingDepositLiabilities	2337590000	usd
CY2021Q4	us-gaap	Interest Bearing Deposit Liabilities InterestBearingDepositLiabilities	1890212000	usd
CY2022Q4	us-gaap	Deposits Savings Deposits DepositsSavingsDeposits	1064392000	usd
CY2021Q4	us-gaap	Deposits Savings Deposits DepositsSavingsDeposits	895019000	usd
CY2022Q4	us-gaap	Deposits Money Market Deposits DepositsMoneyMarketDeposits	1985974000	usd
CY2021Q4	us-gaap	Deposits Money Market Deposits DepositsMoneyMarketDeposits	1651881000	usd
CY2022Q4	us-gaap	Time Deposits Less Than100000 TimeDepositsLessThan100000	369389000	usd
CY2021Q4	us-gaap	Time Deposits Less Than100000 TimeDepositsLessThan100000	404601000	usd
CY2022Q4	sbcf	Brokered Time Certificates BrokeredTimeCertificates	3798000	usd
CY2021Q4	sbcf	Brokered Time Certificates BrokeredTimeCertificates	0	usd
CY2022Q4	us-gaap	Time Deposits At Or Above Fdic Insurance Limit TimeDepositsAtOrAboveFDICInsuranceLimit	149479000	usd
CY2021Q4	us-gaap	Time Deposits At Or Above Fdic Insurance Limit TimeDepositsAtOrAboveFDICInsuranceLimit	150342000	usd
CY2022Q4	us-gaap	Deposits Deposits	9981595000	usd
CY2021Q4	us-gaap	Deposits Deposits	8067589000	usd
CY2022Q4	us-gaap	Securities Sold Under Agreements To Repurchase SecuritiesSoldUnderAgreementsToRepurchase	172029000	usd
CY2021Q4	us-gaap	Securities Sold Under Agreements To Repurchase SecuritiesSoldUnderAgreementsToRepurchase	121565000	usd
CY2022Q4	us-gaap	Federal Home Loan Bank Consolidated Obligations FederalHomeLoanBankConsolidatedObligations	150000000	usd
CY2021Q4	us-gaap	Federal Home Loan Bank Consolidated Obligations FederalHomeLoanBankConsolidatedObligations	0	usd
CY2022Q4	us-gaap	Subordinated Debt SubordinatedDebt	84533000	usd
CY2021Q4	us-gaap	Subordinated Debt SubordinatedDebt	71646000	usd
CY2022Q4	us-gaap	Other Liabilities OtherLiabilities	149830000	usd
CY2021Q4	us-gaap	Other Liabilities OtherLiabilities	109897000	usd
CY2022Q4	us-gaap	Liabilities Liabilities	10537987000	usd
CY2021Q4	us-gaap	Liabilities Liabilities	8370697000	usd
CY2022Q4	us-gaap	Commitments And Contingencies CommitmentsAndContingencies		usd
CY2021Q4	us-gaap	Commitments And Contingencies CommitmentsAndContingencies		usd
CY2022Q4	us-gaap	Common Stock Par Or Stated Value Per Share CommonStockParOrStatedValuePerShare	0.10
CY2021Q4	us-gaap	Common Stock Par Or Stated Value Per Share CommonStockParOrStatedValuePerShare	0.10
CY2022Q4	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	120000000	shares
CY2022Q4	us-gaap	Common Stock Shares Issued CommonStockSharesIssued	72099136	shares
CY2022Q4	us-gaap	Common Stock Shares Outstanding CommonStockSharesOutstanding	71617852	shares
CY2021Q4	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	120000000	shares
CY2021Q4	us-gaap	Common Stock Shares Issued CommonStockSharesIssued	58909369	shares
CY2021Q4	us-gaap	Common Stock Shares Outstanding CommonStockSharesOutstanding	58504250	shares
CY2022Q4	us-gaap	Common Stock Value CommonStockValue	7162000	usd
CY2021Q4	us-gaap	Common Stock Value CommonStockValue	5850000	usd
CY2022Q4	us-gaap	Additional Paid In Capital AdditionalPaidInCapital	1377802000	usd
CY2021Q4	us-gaap	Additional Paid In Capital AdditionalPaidInCapital	963851000	usd
CY2022Q4	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	423863000	usd
CY2021Q4	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	358598000	usd
CY2022Q4	us-gaap	Treasury Stock Shares TreasuryStockShares	481284	shares
CY2021Q4	us-gaap	Treasury Stock Shares TreasuryStockShares	405119	shares
CY2022Q4	us-gaap	Treasury Stock Value TreasuryStockValue	13019000	usd
CY2021Q4	us-gaap	Treasury Stock Value TreasuryStockValue	10569000	usd
CY2022Q4	sbcf	Stockholders Equity Before Accumulated Other Comprehensive Income StockholdersEquityBeforeAccumulatedOtherComprehensiveIncome	1795808000	usd
CY2021Q4	sbcf	Stockholders Equity Before Accumulated Other Comprehensive Income StockholdersEquityBeforeAccumulatedOtherComprehensiveIncome	1317730000	usd
CY2022Q4	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	-188033000	usd
CY2021Q4	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	-6994000	usd
CY2022Q4	us-gaap	Stockholders Equity StockholdersEquity	1607775000	usd
CY2021Q4	us-gaap	Stockholders Equity StockholdersEquity	1310736000	usd
CY2022Q4	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	12145762000	usd
CY2021Q4	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	9681433000	usd
CY2022	us-gaap	Net Income Loss NetIncomeLoss	106507000	usd
CY2021	us-gaap	Net Income Loss NetIncomeLoss	124403000	usd
CY2020	us-gaap	Net Income Loss NetIncomeLoss	77764000	usd
CY2022	us-gaap	Depreciation Depreciation	6115000	usd
CY2021	us-gaap	Depreciation Depreciation	5482000	usd
CY2020	us-gaap	Depreciation Depreciation	6020000	usd
CY2022	us-gaap	Accretion Amortization Of Discounts And Premiums Investments AccretionAmortizationOfDiscountsAndPremiumsInvestments	-576000	usd
CY2021	us-gaap	Accretion Amortization Of Discounts And Premiums Investments AccretionAmortizationOfDiscountsAndPremiumsInvestments	-6220000	usd
CY2020	us-gaap	Accretion Amortization Of Discounts And Premiums Investments AccretionAmortizationOfDiscountsAndPremiumsInvestments	-5019000	usd
CY2022	us-gaap	Operating Lease Right Of Use Asset Amortization Expense OperatingLeaseRightOfUseAssetAmortizationExpense	6485000	usd
CY2021	us-gaap	Operating Lease Right Of Use Asset Amortization Expense OperatingLeaseRightOfUseAssetAmortizationExpense	4576000	usd
CY2020	us-gaap	Operating Lease Right Of Use Asset Amortization Expense OperatingLeaseRightOfUseAssetAmortizationExpense	4362000	usd
CY2022	sbcf	Other Accretion Amortization Net OtherAccretionAmortizationNet	1967000	usd
CY2021	sbcf	Other Accretion Amortization Net OtherAccretionAmortizationNet	13908000	usd
CY2020	sbcf	Other Accretion Amortization Net OtherAccretionAmortizationNet	8667000	usd
CY2022	us-gaap	Share Based Compensation ShareBasedCompensation	11155000	usd
CY2021	us-gaap	Share Based Compensation ShareBasedCompensation	8685000	usd
CY2020	us-gaap	Share Based Compensation ShareBasedCompensation	7304000	usd
CY2022	us-gaap	Payments For Origination Of Mortgage Loans Held For Sale PaymentsForOriginationOfMortgageLoansHeldForSale	186504000	usd
CY2021	us-gaap	Payments For Origination Of Mortgage Loans Held For Sale PaymentsForOriginationOfMortgageLoansHeldForSale	490426000	usd
CY2020	us-gaap	Payments For Origination Of Mortgage Loans Held For Sale PaymentsForOriginationOfMortgageLoansHeldForSale	511706000	usd
CY2022	sbcf	Sale Of Loans Designated Held For Sale SaleOfLoansDesignatedHeldForSale	221199000	usd
CY2021	sbcf	Sale Of Loans Designated Held For Sale SaleOfLoansDesignatedHeldForSale	543410000	usd
CY2020	sbcf	Sale Of Loans Designated Held For Sale SaleOfLoansDesignatedHeldForSale	477178000	usd
CY2022	sbcf	Financing Receivable And Accrued Interest Receivable Credit Loss Provision Reversal FinancingReceivableAndAccruedInterestReceivableCreditLossProvisionReversal	26183000	usd
CY2021	sbcf	Financing Receivable And Accrued Interest Receivable Credit Loss Provision Reversal FinancingReceivableAndAccruedInterestReceivableCreditLossProvisionReversal	-9421000	usd
CY2020	sbcf	Financing Receivable And Accrued Interest Receivable Credit Loss Provision Reversal FinancingReceivableAndAccruedInterestReceivableCreditLossProvisionReversal	38179000	usd
CY2022	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	-10398000	usd
CY2021	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	3836000	usd
CY2020	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	-4926000	usd
CY2022	us-gaap	Marketable Securities Realized Gain Loss Excluding Other Than Temporary Impairments MarketableSecuritiesRealizedGainLossExcludingOtherThanTemporaryImpairments	0	usd
CY2021	us-gaap	Marketable Securities Realized Gain Loss Excluding Other Than Temporary Impairments MarketableSecuritiesRealizedGainLossExcludingOtherThanTemporaryImpairments	-363000	usd
CY2020	us-gaap	Marketable Securities Realized Gain Loss Excluding Other Than Temporary Impairments MarketableSecuritiesRealizedGainLossExcludingOtherThanTemporaryImpairments	1096000	usd
CY2022	us-gaap	Gain Loss On Sales Of Consumer Loans GainLossOnSalesOfConsumerLoans	5687000	usd
CY2021	us-gaap	Gain Loss On Sales Of Consumer Loans GainLossOnSalesOfConsumerLoans	15276000	usd
CY2020	us-gaap	Gain Loss On Sales Of Consumer Loans GainLossOnSalesOfConsumerLoans	13930000	usd
CY2022	us-gaap	Gains Losses On Sales Of Other Real Estate GainsLossesOnSalesOfOtherRealEstate	1749000	usd
CY2021	us-gaap	Gains Losses On Sales Of Other Real Estate GainsLossesOnSalesOfOtherRealEstate	635000	usd
CY2020	us-gaap	Gains Losses On Sales Of Other Real Estate GainsLossesOnSalesOfOtherRealEstate	-1139000	usd
CY2022	us-gaap	Gain Loss On Disposition Of Assets GainLossOnDispositionOfAssets	-1394000	usd
CY2021	us-gaap	Gain Loss On Disposition Of Assets GainLossOnDispositionOfAssets	-817000	usd
CY2020	us-gaap	Gain Loss On Disposition Of Assets GainLossOnDispositionOfAssets	-791000	usd
CY2022	us-gaap	Increase Decrease In Other Operating Assets IncreaseDecreaseInOtherOperatingAssets	-508000	usd
CY2021	us-gaap	Increase Decrease In Other Operating Assets IncreaseDecreaseInOtherOperatingAssets	42437000	usd
CY2020	us-gaap	Increase Decrease In Other Operating Assets IncreaseDecreaseInOtherOperatingAssets	35555000	usd
CY2022	us-gaap	Increase Decrease In Other Operating Liabilities IncreaseDecreaseInOtherOperatingLiabilities	22042000	usd
CY2020	us-gaap	Payments To Acquire Available For Sale Securities Debt PaymentsToAcquireAvailableForSaleSecuritiesDebt	830300000	usd
CY2021	us-gaap	Increase Decrease In Other Operating Liabilities IncreaseDecreaseInOtherOperatingLiabilities	28883000	usd
CY2020	us-gaap	Increase Decrease In Other Operating Liabilities IncreaseDecreaseInOtherOperatingLiabilities	18776000	usd
CY2022	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	195859000	usd
CY2021	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	154572000	usd
CY2020	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	60652000	usd
CY2022	us-gaap	Proceeds From Maturities Prepayments And Calls Of Available For Sale Securities ProceedsFromMaturitiesPrepaymentsAndCallsOfAvailableForSaleSecurities	270785000	usd
CY2021	us-gaap	Proceeds From Maturities Prepayments And Calls Of Available For Sale Securities ProceedsFromMaturitiesPrepaymentsAndCallsOfAvailableForSaleSecurities	546339000	usd
CY2020	us-gaap	Proceeds From Maturities Prepayments And Calls Of Available For Sale Securities ProceedsFromMaturitiesPrepaymentsAndCallsOfAvailableForSaleSecurities	304064000	usd
CY2022	us-gaap	Proceeds From Maturities Prepayments And Calls Of Held To Maturity Securities ProceedsFromMaturitiesPrepaymentsAndCallsOfHeldToMaturitySecurities	96925000	usd
CY2021	us-gaap	Proceeds From Maturities Prepayments And Calls Of Held To Maturity Securities ProceedsFromMaturitiesPrepaymentsAndCallsOfHeldToMaturitySecurities	132916000	usd
CY2020	us-gaap	Proceeds From Maturities Prepayments And Calls Of Held To Maturity Securities ProceedsFromMaturitiesPrepaymentsAndCallsOfHeldToMaturitySecurities	75861000	usd
CY2022	us-gaap	Proceeds From Sale Of Available For Sale Securities Debt ProceedsFromSaleOfAvailableForSaleSecuritiesDebt	515183000	usd
CY2021	us-gaap	Proceeds From Sale Of Available For Sale Securities Debt ProceedsFromSaleOfAvailableForSaleSecuritiesDebt	84972000	usd
CY2020	us-gaap	Proceeds From Sale Of Available For Sale Securities Debt ProceedsFromSaleOfAvailableForSaleSecuritiesDebt	96732000	usd
CY2022	us-gaap	Payments To Acquire Available For Sale Securities Debt PaymentsToAcquireAvailableForSaleSecuritiesDebt	693625000	usd
CY2021	us-gaap	Payments To Acquire Available For Sale Securities Debt PaymentsToAcquireAvailableForSaleSecuritiesDebt	1145193000	usd
CY2022	us-gaap	Payments To Acquire Held To Maturity Securities PaymentsToAcquireHeldToMaturitySecurities	206065000	usd
CY2021	us-gaap	Payments To Acquire Held To Maturity Securities PaymentsToAcquireHeldToMaturitySecurities	377159000	usd
CY2020	us-gaap	Payments To Acquire Held To Maturity Securities PaymentsToAcquireHeldToMaturitySecurities	0	usd
CY2022	sbcf	Proceeds From Sale And Maturity Of Time Deposits Held With Other Banks ProceedsFromSaleAndMaturityOfTimeDepositsHeldWithOtherBanks	3237000	usd
CY2021	sbcf	Proceeds From Sale And Maturity Of Time Deposits Held With Other Banks ProceedsFromSaleAndMaturityOfTimeDepositsHeldWithOtherBanks	750000	usd
CY2020	sbcf	Proceeds From Sale And Maturity Of Time Deposits Held With Other Banks ProceedsFromSaleAndMaturityOfTimeDepositsHeldWithOtherBanks	2992000	usd
CY2022	sbcf	Payments For Proceeds From New Loans And Principal Repayments Investing Activities PaymentsForProceedsFromNewLoansAndPrincipalRepaymentsInvestingActivities	513343000	usd
CY2021	sbcf	Payments For Proceeds From New Loans And Principal Repayments Investing Activities PaymentsForProceedsFromNewLoansAndPrincipalRepaymentsInvestingActivities	-566348000	usd
CY2020	sbcf	Payments For Proceeds From New Loans And Principal Repayments Investing Activities PaymentsForProceedsFromNewLoansAndPrincipalRepaymentsInvestingActivities	79100000	usd
CY2022	us-gaap	Payments To Acquire Loans Held For Investment PaymentsToAcquireLoansHeldForInvestment	111292000	usd
CY2021	us-gaap	Payments To Acquire Loans Held For Investment PaymentsToAcquireLoansHeldForInvestment	259267000	usd
CY2020	us-gaap	Payments To Acquire Loans Held For Investment PaymentsToAcquireLoansHeldForInvestment	0	usd
CY2022	us-gaap	Proceeds From Sale Of Foreclosed Assets ProceedsFromSaleOfForeclosedAssets	15951000	usd
CY2021	us-gaap	Proceeds From Sale Of Foreclosed Assets ProceedsFromSaleOfForeclosedAssets	5598000	usd
CY2020	us-gaap	Proceeds From Sale Of Foreclosed Assets ProceedsFromSaleOfForeclosedAssets	8521000	usd
CY2022	sbcf	Additions For Costs Capitalized To Other Real Estate Owned AdditionsForCostsCapitalizedToOtherRealEstateOwned	591000	usd
CY2021	sbcf	Additions For Costs Capitalized To Other Real Estate Owned AdditionsForCostsCapitalizedToOtherRealEstateOwned	2513000	usd
CY2020	sbcf	Additions For Costs Capitalized To Other Real Estate Owned AdditionsForCostsCapitalizedToOtherRealEstateOwned	2557000	usd
CY2022	us-gaap	Proceeds From Sale Of Federal Reserve Stock ProceedsFromSaleOfFederalReserveStock	0	usd
CY2021	us-gaap	Proceeds From Sale Of Federal Reserve Stock ProceedsFromSaleOfFederalReserveStock	3945000	usd
CY2020	us-gaap	Proceeds From Sale Of Federal Reserve Stock ProceedsFromSaleOfFederalReserveStock	39185000	usd
CY2022	us-gaap	Payments To Acquire Federal Reserve Stock PaymentsToAcquireFederalReserveStock	11924000	usd
CY2021	us-gaap	Payments To Acquire Federal Reserve Stock PaymentsToAcquireFederalReserveStock	3020000	usd
CY2020	us-gaap	Payments To Acquire Federal Reserve Stock PaymentsToAcquireFederalReserveStock	28278000	usd
CY2022	us-gaap	Proceeds From Life Insurance Policies ProceedsFromLifeInsurancePolicies	25782000	usd
CY2021	us-gaap	Proceeds From Life Insurance Policies ProceedsFromLifeInsurancePolicies	0	usd
CY2020	us-gaap	Proceeds From Life Insurance Policies ProceedsFromLifeInsurancePolicies	0	usd
CY2022	us-gaap	Payments To Acquire Life Insurance Policies PaymentsToAcquireLifeInsurancePolicies	25000000	usd
CY2021	us-gaap	Payments To Acquire Life Insurance Policies PaymentsToAcquireLifeInsurancePolicies	60000000	usd
CY2020	us-gaap	Payments To Acquire Life Insurance Policies PaymentsToAcquireLifeInsurancePolicies	0	usd
CY2022	sbcf	Net Cash From Acquisition Net Of Paid For Preferred Stock NetCashFromAcquisitionNetOfPaidForPreferredStock	281747000	usd
CY2021	sbcf	Net Cash From Acquisition Net Of Paid For Preferred Stock NetCashFromAcquisitionNetOfPaidForPreferredStock	98100000	usd
CY2020	sbcf	Net Cash From Acquisition Net Of Paid For Preferred Stock NetCashFromAcquisitionNetOfPaidForPreferredStock	71965000	usd
CY2022	sbcf	Additions To Bank Premises And Equipment AdditionsToBankPremisesAndEquipment	12645000	usd
CY2021	sbcf	Additions To Bank Premises And Equipment AdditionsToBankPremisesAndEquipment	4327000	usd
CY2020	sbcf	Additions To Bank Premises And Equipment AdditionsToBankPremisesAndEquipment	1587000	usd
CY2022	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-364875000	usd
CY2021	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-412511000	usd
CY2020	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-342502000	usd
CY2022	us-gaap	Increase Decrease In Deposits IncreaseDecreaseInDeposits	-384403000	usd
CY2021	us-gaap	Increase Decrease In Deposits IncreaseDecreaseInDeposits	640108000	usd
CY2020	us-gaap	Increase Decrease In Deposits IncreaseDecreaseInDeposits	844405000	usd
CY2022	us-gaap	Increase Decrease In Federal Funds Purchased And Securities Sold Under Agreements To Repurchase Net IncreaseDecreaseInFederalFundsPurchasedAndSecuritiesSoldUnderAgreementsToRepurchaseNet	50464000	usd
CY2021	us-gaap	Increase Decrease In Federal Funds Purchased And Securities Sold Under Agreements To Repurchase Net IncreaseDecreaseInFederalFundsPurchasedAndSecuritiesSoldUnderAgreementsToRepurchaseNet	1956000	usd
CY2020	us-gaap	Increase Decrease In Federal Funds Purchased And Securities Sold Under Agreements To Repurchase Net IncreaseDecreaseInFederalFundsPurchasedAndSecuritiesSoldUnderAgreementsToRepurchaseNet	33488000	usd
CY2022	us-gaap	Increase Decrease In Loans From Other Federal Home Loan Banks IncreaseDecreaseInLoansFromOtherFederalHomeLoanBanks	-62500000	usd
CY2021	us-gaap	Increase Decrease In Loans From Other Federal Home Loan Banks IncreaseDecreaseInLoansFromOtherFederalHomeLoanBanks	0	usd
CY2020	us-gaap	Increase Decrease In Loans From Other Federal Home Loan Banks IncreaseDecreaseInLoansFromOtherFederalHomeLoanBanks	-235000000	usd
CY2022	sbcf	Repayments Of Loans Federal Home Loan Banks Maturities Greater Than Three Months RepaymentsOfLoansFederalHomeLoanBanksMaturitiesGreaterThanThreeMonths	7500000	usd
CY2021	sbcf	Repayments Of Loans Federal Home Loan Banks Maturities Greater Than Three Months RepaymentsOfLoansFederalHomeLoanBanksMaturitiesGreaterThanThreeMonths	33000000	usd
CY2020	sbcf	Repayments Of Loans Federal Home Loan Banks Maturities Greater Than Three Months RepaymentsOfLoansFederalHomeLoanBanksMaturitiesGreaterThanThreeMonths	115000000	usd
CY2022	sbcf	Increase Decreasein Loansfrom Federal Home Loan Banks Maturities Greater Than Three Months IncreaseDecreaseinLoansfromFederalHomeLoanBanksMaturitiesGreaterThanThreeMonths	75000000	usd
CY2021	sbcf	Increase Decreasein Loansfrom Federal Home Loan Banks Maturities Greater Than Three Months IncreaseDecreaseinLoansfromFederalHomeLoanBanksMaturitiesGreaterThanThreeMonths	0	usd
CY2020	sbcf	Increase Decreasein Loansfrom Federal Home Loan Banks Maturities Greater Than Three Months IncreaseDecreaseinLoansfromFederalHomeLoanBanksMaturitiesGreaterThanThreeMonths	35000000	usd
CY2022	us-gaap	Proceeds From Stock Plans ProceedsFromStockPlans	3408000	usd
CY2021	us-gaap	Proceeds From Stock Plans ProceedsFromStockPlans	5022000	usd
CY2020	us-gaap	Payments Related To Tax Withholding For Share Based Compensation PaymentsRelatedToTaxWithholdingForShareBasedCompensation	1486000	usd
CY2022	us-gaap	Payments Of Dividends Preferred Stock And Preference Stock PaymentsOfDividendsPreferredStockAndPreferenceStock	41242000	usd
CY2021	us-gaap	Payments Of Dividends Preferred Stock And Preference Stock PaymentsOfDividendsPreferredStockAndPreferenceStock	22506000	usd
CY2020	us-gaap	Payments Of Dividends Preferred Stock And Preference Stock PaymentsOfDividendsPreferredStockAndPreferenceStock	0	usd
CY2022	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-366773000	usd
CY2021	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	591580000	usd
CY2020	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	561407000	usd
CY2022	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	-535789000	usd
CY2021	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	333641000	usd
CY2020	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	279557000	usd
CY2021Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	737729000	usd
CY2020Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	404088000	usd
CY2019Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	124531000	usd
CY2022Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	201940000	usd
CY2021Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	737729000	usd
CY2020Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	404088000	usd
CY2022	us-gaap	Interest Paid Net InterestPaidNet	13743000	usd
CY2021	us-gaap	Interest Paid Net InterestPaidNet	9977000	usd
CY2020	us-gaap	Interest Paid Net InterestPaidNet	23548000	usd
CY2022	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	29591000	usd
CY2021	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	30887000	usd
CY2020	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	27712000	usd
CY2022	sbcf	Operating Lease Right Of Use Assets Initial Recognition OperatingLeaseRightOfUseAssetsInitialRecognition	3370000	usd
CY2021	sbcf	Operating Lease Right Of Use Assets Initial Recognition OperatingLeaseRightOfUseAssetsInitialRecognition	12459000	usd
CY2020	sbcf	Operating Lease Right Of Use Assets Initial Recognition OperatingLeaseRightOfUseAssetsInitialRecognition	2095000	usd
CY2022	sbcf	Operating Lease Liability Initial Recognition OperatingLeaseLiabilityInitialRecognition	3370000	usd
CY2021	sbcf	Operating Lease Liability Initial Recognition OperatingLeaseLiabilityInitialRecognition	12459000	usd
CY2020	sbcf	Operating Lease Liability Initial Recognition OperatingLeaseLiabilityInitialRecognition	2095000	usd
CY2022	sbcf	Transfer Of Debt Securities From Available For Sale To Held To Maturity TransferOfDebtSecuritiesFromAvailableForSaleToHeldToMaturity	0	usd
CY2021	sbcf	Transfer Of Debt Securities From Available For Sale To Held To Maturity TransferOfDebtSecuritiesFromAvailableForSaleToHeldToMaturity	210805000	usd
CY2020	sbcf	Transfer Of Debt Securities From Available For Sale To Held To Maturity TransferOfDebtSecuritiesFromAvailableForSaleToHeldToMaturity	0	usd
CY2022	us-gaap	Noncash Or Part Noncash Acquisition Investments Acquired1 NoncashOrPartNoncashAcquisitionInvestmentsAcquired1	0	usd
CY2021	us-gaap	Noncash Or Part Noncash Acquisition Investments Acquired1 NoncashOrPartNoncashAcquisitionInvestmentsAcquired1	17147000	usd
CY2020	us-gaap	Noncash Or Part Noncash Acquisition Investments Acquired1 NoncashOrPartNoncashAcquisitionInvestmentsAcquired1	0	usd
CY2022	sbcf	Transfer From Loans To Other Real Estate Owned TransferFromLoansToOtherRealEstateOwned	0	usd
CY2021	sbcf	Transfer From Loans To Other Real Estate Owned TransferFromLoansToOtherRealEstateOwned	0	usd
CY2020	sbcf	Transfer From Loans To Other Real Estate Owned TransferFromLoansToOtherRealEstateOwned	5624000	usd
CY2022	sbcf	Transfers From Bank Premises To Other Real Estate Owned TransfersFromBankPremisesToOtherRealEstateOwned	1674000	usd
CY2021	sbcf	Transfers From Bank Premises To Other Real Estate Owned TransfersFromBankPremisesToOtherRealEstateOwned	3318000	usd
CY2020	sbcf	Transfers From Bank Premises To Other Real Estate Owned TransfersFromBankPremisesToOtherRealEstateOwned	1289000	usd
CY2019Q4	us-gaap	Stockholders Equity StockholdersEquity	985639000	usd
CY2020	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	93669000	usd
CY2020	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	7304000	usd
CY2020	sbcf	Stock Issued During Period Value Employee Benefit Plans StockIssuedDuringPeriodValueEmployeeBenefitPlans	2252000	usd
CY2020	us-gaap	Stock Issued During Period Value Stock Options Exercised StockIssuedDuringPeriodValueStockOptionsExercised	766000	usd
CY2020	sbcf	Stock Issued During Period Value Acquisitions Net Of Related Expense StockIssuedDuringPeriodValueAcquisitionsNetOfRelatedExpense	62152000	usd
CY2020Q4	us-gaap	Stockholders Equity StockholdersEquity	1130402000	usd
CY2021	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	97039000	usd
CY2021	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	8685000	usd
CY2021	sbcf	Stock Issued During Period Value Employee Benefit Plans StockIssuedDuringPeriodValueEmployeeBenefitPlans	2314000	usd
CY2021	us-gaap	Stock Issued During Period Value Stock Options Exercised StockIssuedDuringPeriodValueStockOptionsExercised	7336000	usd
CY2021	sbcf	Stock Issued During Period Value Acquisitions Net Of Related Expense StockIssuedDuringPeriodValueAcquisitionsNetOfRelatedExpense	86487000	usd
CY2021	us-gaap	Stock Issued During Period Value Conversion Of Convertible Securities StockIssuedDuringPeriodValueConversionOfConvertibleSecurities	5607000	usd
CY2021	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.39
CY2021	us-gaap	Dividends Common Stock DividendsCommonStock	22506000	usd
CY2021Q4	us-gaap	Stockholders Equity StockholdersEquity	1310736000	usd
CY2022	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	-74532000	usd
CY2022	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	11155000	usd
CY2022	sbcf	Stock Issued During Period Value Employee Benefit Plans StockIssuedDuringPeriodValueEmployeeBenefitPlans	2507000	usd
CY2022	us-gaap	Stock Issued During Period Value Stock Options Exercised StockIssuedDuringPeriodValueStockOptionsExercised	5916000	usd
CY2022	sbcf	Stock Issued During Period Value Acquisitions Net Of Related Expense StockIssuedDuringPeriodValueAcquisitionsNetOfRelatedExpense	397236000	usd
CY2022	us-gaap	Stock Issued During Period Value Conversion Of Convertible Securities StockIssuedDuringPeriodValueConversionOfConvertibleSecurities	1013000	usd
CY2022	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.64
CY2022	us-gaap	Dividends Common Stock DividendsCommonStock	41242000	usd
CY2022Q4	us-gaap	Stockholders Equity StockholdersEquity	1607775000	usd
CY2022	us-gaap	Number Of Operating Segments NumberOfOperatingSegments	1	operating_segment
CY2022	us-gaap	Use Of Estimates UseOfEstimates	<span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-style:italic;font-weight:400;line-height:120%">Use of Estimates:</span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%"> The preparation of consolidated financial statements requires management to make judgments in the application of certain accounting policies that involve significant estimates and assumptions. The Company has established policies and control procedures that are intended to ensure valuation methods are well controlled and applied consistently from period to period. These estimates and assumptions, which may materially affect the reported amounts of certain assets, liabilities, revenues and expenses, are based on information available as of the date of the financial statements, and changes in this information over time and the use of revised estimates and assumptions could materially affect amounts reported in subsequent financial statements. Specific areas, among others, requiring the application of management’s estimates include determination of the allowance for credit losses, acquisition accounting and purchased loans, intangible assets and impairment testing, other fair value measurements, and contingent liabilities.</span>
CY2022	us-gaap	Financing Receivable Allowance For Credit Losses Policy For Uncollectible Amounts FinancingReceivableAllowanceForCreditLossesPolicyForUncollectibleAmounts	<div style="margin-bottom:10pt;text-align:justify"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-style:italic;font-weight:400;line-height:120%">Allowance for credit losses on loans: </span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">The allowance for credit losses represents management's best estimate of expected future credit losses related to the loan portfolio at the balance sheet date. The allowance for credit losses is a valuation account that is deducted from the loans' amortized cost basis to present the net amount to be collected on loans. Loan balances deemed uncollectible are charged off against the allowance for credit losses and recoveries are credited to the allowance. In order to adjust the allowance to the current estimate of expected credit losses, charges or credits to the provision for credit losses are reflected in the Consolidated Statements of Income. The Company excludes accrued interest on loans from its determination of allowance. </span></div><div style="margin-bottom:10pt;text-align:justify"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">Portfolio segments represent the level at which the Company develops and documents its methodology for determining its allowance for credit losses. See Note 4 - Loans, for a description of each of the segments, which are disaggregated by similar risk characteristics such as customer and/or collateral type.</span></div><div style="margin-bottom:10pt;text-align:justify"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">The allowance for credit losses is measured on a collective basis when similar risk characteristics exist. Management establishes the allowance using relevant available information from both internal and external sources, relating to past events, current conditions, and reasonable and supportable forecasts. Forecast data is sourced from Moody’s Analytics (“Moody’s”), a firm recognized for its research, analysis, and economic forecasts. The forecasts of future economic conditions are over a period that has been deemed reasonable and supportable, and in segments where it can no longer develop reasonable and supportable forecasts, the Company reverts to longer-term historical loss experience to estimate losses over the remaining life of the loans. The forecast may utilize one scenario or a composite of scenarios based on management's judgment and expectations around the current and future macroeconomic outlook. Expected credit losses are estimated over the contractual term of the loans, adjusted for expected prepayments when appropriate. </span></div><div style="margin-bottom:10pt;text-align:justify"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">In the implementation of CECL at January 1, 2020 and through June 30, 2022, the Company utilized a top-down allowance model based on an analysis of the probability of default (“PD”) and loss given default (“LGD”) to determine an expected loss by loan segment. During the third quarter of 2022, the Company transitioned to a tool that calculates the quantitative portion of expected credit losses at the individual loan level using a discounted cash flow methodology for its commercial loans and using a loss rate methodology for its consumer loans. The new tool being utilized produces more granular results of expected loan loss, incorporates more extensive historical loss data, and allows for a more efficient process. This change did not result in a material impact to the Company’s financial statements.</span></div><div style="margin-bottom:10pt;text-align:justify"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">Adjustments may be made to baseline reserves based on an assessment of internal and external influences on credit quality not fully reflected in the quantitative components of the allowance model. These influences may include elements such as changes in concentration, macroeconomic conditions, recent observable asset quality trends, staff turnover, regional market conditions, employment levels, model risk, and loan growth. Based upon management's assessments of these factors, the Company may apply qualitative adjustments to the allowance. </span></div><div style="margin-bottom:10pt;text-align:justify"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">Loans that do not share risk characteristics are evaluated on an individual basis. Loans evaluated individually are not also included in the collective evaluation. For loans that are individually evaluated, the allowance is determined through review of data specific to the borrower and the related collateral, if any. When management determines that foreclosure is probable, expected credit losses are based on the fair value of the collateral at the reporting date, adjusted for selling costs as appropriate.</span></div><div style="margin-bottom:10pt;text-align:justify"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">The contractual term of a loan excludes expected extensions, renewals, and modification unless either of the following applies: management has a reasonable expectation at the reporting date that a TDR will be executed with an individual borrower or the extension or renewal options are included in the original or modified contract at the reporting date and not unconditionally cancellable by the Company. </span></div><div style="margin-bottom:10pt;text-align:justify"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">The allowance for PCD loans is determined at the time of acquisition as the estimated expected credit loss of the outstanding balance or par value, based on the methodologies described previously for loans. The allowance recognized at acquisition is added to the acquisition date purchase price to determine the asset’s amortized cost basis.</span></div><div style="margin-bottom:10pt;text-align:justify"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">The allowance for credit losses on TDRs is measured using the fair value of the collateral method when the repayment is expected to be provided substantially through the operation or sale of the collateral. Otherwise, when the value of a concession can only be measured using the discounted cash flow method, the allowance for credit losses is determined by discounting the expected future cash flows at the original interest rate of the loan. </span></div><div style="margin-bottom:10pt;text-align:justify"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">It is the Company's practice to ensure that the charge-off policy meets or exceeds regulatory requirements. Losses on unsecured consumer loans are recognized at 90 days past due, compared to the regulatory loss criteria of 120 days. In compliance with Federal Financial Institution Examination Council guidelines, secured consumer loans, including residential real estate, are typically charged off or charged down between 120 and 180 days past due, depending on the collateral type. Commercial loans and real estate loans are typically placed on nonaccrual status when principal or interest is past due for 90 days or more, unless the loan is both secured by collateral having realizable value sufficient to discharge the debt in-full and the loan is in process of collection. Secured loans may be charged down to the estimated value of the collateral with previously accrued unpaid interest reversed against interest income. Subsequent charge-offs may be required as a result of changes in the market value of collateral or other repayment prospects. Initial charge-off amounts are based on valuation estimates derived from appraisals or other market information. Generally, new appraisals are not received until the foreclosure process is completed; however, collateral values are evaluated periodically based on market information and incremental charge-offs are recorded if it is determined that collateral values have declined from their initial estimates.</span></div>
CY2022	us-gaap	Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	1505	shares
CY2020	us-gaap	Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	508000	shares
CY2021	us-gaap	Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	0	shares
CY2022	us-gaap	Net Income Loss NetIncomeLoss	106507000	usd
CY2021	us-gaap	Net Income Loss NetIncomeLoss	124403000	usd
CY2020	us-gaap	Net Income Loss NetIncomeLoss	77764000	usd
CY2022	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	63707000	shares
CY2021	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	56586000	shares
CY2020	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	53502000	shares
CY2022	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	1.67
CY2021	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	2.20
CY2020	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	1.45
CY2022	us-gaap	Net Income Loss NetIncomeLoss	106507000	usd
CY2021	us-gaap	Net Income Loss NetIncomeLoss	124403000	usd
CY2020	us-gaap	Net Income Loss NetIncomeLoss	77764000	usd
CY2022	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	63707000	shares
CY2021	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	56586000	shares
CY2020	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	53502000	shares
CY2022	us-gaap	Weighted Average Number Diluted Shares Outstanding Adjustment WeightedAverageNumberDilutedSharesOutstandingAdjustment	557000	shares
CY2021	us-gaap	Weighted Average Number Diluted Shares Outstanding Adjustment WeightedAverageNumberDilutedSharesOutstandingAdjustment	502000	shares
CY2020	us-gaap	Weighted Average Number Diluted Shares Outstanding Adjustment WeightedAverageNumberDilutedSharesOutstandingAdjustment	428000	shares
CY2022	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	64264000	shares
CY2021	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	57088000	shares
CY2020	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	53930000	shares
CY2022	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	1.66
CY2021	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	2.18
CY2020	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	1.44
CY2022Q4	us-gaap	Debt Securities Available For Sale Amortized Cost Excluding Accrued Interest After Allowance For Credit Loss DebtSecuritiesAvailableForSaleAmortizedCostExcludingAccruedInterestAfterAllowanceForCreditLoss	2119303000	usd
CY2022Q4	us-gaap	Available For Sale Debt Securities Accumulated Gross Unrealized Gain Before Tax AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax	1101000	usd
CY2022Q4	us-gaap	Available For Sale Debt Securities Accumulated Gross Unrealized Loss Before Tax AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax	248662000	usd
CY2022Q4	us-gaap	Debt Securities Available For Sale Excluding Accrued Interest DebtSecuritiesAvailableForSaleExcludingAccruedInterest	1871742000	usd
CY2022Q4	us-gaap	Debt Securities Held To Maturity Excluding Accrued Interest After Allowance For Credit Loss DebtSecuritiesHeldToMaturityExcludingAccruedInterestAfterAllowanceForCreditLoss	747408000	usd
CY2022Q4	us-gaap	Held To Maturity Securities Accumulated Unrecognized Holding Gain HeldToMaturitySecuritiesAccumulatedUnrecognizedHoldingGain	64000	usd
CY2022Q4	us-gaap	Held To Maturity Securities Accumulated Unrecognized Holding Loss HeldToMaturitySecuritiesAccumulatedUnrecognizedHoldingLoss	129731000	usd
CY2022Q4	us-gaap	Held To Maturity Securities Fair Value HeldToMaturitySecuritiesFairValue	617741000	usd
CY2021Q4	us-gaap	Debt Securities Available For Sale Amortized Cost Excluding Accrued Interest After Allowance For Credit Loss DebtSecuritiesAvailableForSaleAmortizedCostExcludingAccruedInterestAfterAllowanceForCreditLoss	1653658000	usd
CY2021Q4	us-gaap	Available For Sale Debt Securities Accumulated Gross Unrealized Gain Before Tax AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax	11518000	usd
CY2021Q4	us-gaap	Available For Sale Debt Securities Accumulated Gross Unrealized Loss Before Tax AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax	20857000	usd
CY2021Q4	us-gaap	Debt Securities Available For Sale Excluding Accrued Interest DebtSecuritiesAvailableForSaleExcludingAccruedInterest	1644319000	usd
CY2021Q4	us-gaap	Debt Securities Held To Maturity Excluding Accrued Interest After Allowance For Credit Loss DebtSecuritiesHeldToMaturityExcludingAccruedInterestAfterAllowanceForCreditLoss	638640000	usd
CY2021Q4	us-gaap	Held To Maturity Securities Accumulated Unrecognized Holding Gain HeldToMaturitySecuritiesAccumulatedUnrecognizedHoldingGain	3828000	usd
CY2021Q4	us-gaap	Held To Maturity Securities Accumulated Unrecognized Holding Loss HeldToMaturitySecuritiesAccumulatedUnrecognizedHoldingLoss	15070000	usd
CY2021Q4	us-gaap	Held To Maturity Securities Fair Value HeldToMaturitySecuritiesFairValue	627398000	usd
CY2022	sbcf	Proceeds From Sale Of Debt Securities Available For Sale Including Legacy Securities ProceedsFromSaleOfDebtSecuritiesAvailableForSaleIncludingLegacySecurities	515200000	usd
CY2021	sbcf	Proceeds From Sale Of Debt Securities Available For Sale Including Legacy Securities ProceedsFromSaleOfDebtSecuritiesAvailableForSaleIncludingLegacySecurities	102100000	usd
CY2021	us-gaap	Debt Securities Available For Sale Realized Gain DebtSecuritiesAvailableForSaleRealizedGain	300000	usd
CY2021	us-gaap	Debt Securities Available For Sale Realized Loss DebtSecuritiesAvailableForSaleRealizedLoss	600000	usd
CY2020	sbcf	Proceeds From Sale Of Debt Securities Available For Sale Including Legacy Securities ProceedsFromSaleOfDebtSecuritiesAvailableForSaleIncludingLegacySecurities	96700000	usd
CY2020	us-gaap	Debt Securities Available For Sale Realized Gain DebtSecuritiesAvailableForSaleRealizedGain	2400000	usd
CY2020	us-gaap	Debt Securities Available For Sale Realized Loss DebtSecuritiesAvailableForSaleRealizedLoss	1300000	usd
CY2021Q1	us-gaap	Debt Securities Held To Maturity Transfer Amount DebtSecuritiesHeldToMaturityTransferAmount	210800000	usd
CY2021Q1	us-gaap	Held To Maturity Securities Transferred Security Unrealized Gain Loss HeldToMaturitySecuritiesTransferredSecurityUnrealizedGainLoss	800000	usd
CY2022Q4	us-gaap	Debt Securities Held To Maturity Amortized Cost Excluding Accrued Interest After Allowance For Credit Loss Maturity Allocated And Single Maturity Date Year One DebtSecuritiesHeldToMaturityAmortizedCostExcludingAccruedInterestAfterAllowanceForCreditLossMaturityAllocatedAndSingleMaturityDateYearOne	0	usd
CY2022Q4	us-gaap	Held To Maturity Securities Debt Maturities Within One Year Fair Value HeldToMaturitySecuritiesDebtMaturitiesWithinOneYearFairValue	0	usd
CY2022Q4	us-gaap	Available For Sale Securities Debt Maturities Within One Year Amortized Cost AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearAmortizedCost	1990000	usd
CY2022Q4	us-gaap	Available For Sale Securities Debt Maturities Within One Year Fair Value AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearFairValue	2087000	usd
CY2022Q4	us-gaap	Debt Securities Held To Maturity Amortized Cost Excluding Accrued Interest After Allowance For Credit Loss Maturity Allocated And Single Maturity Date After Year One Through Five DebtSecuritiesHeldToMaturityAmortizedCostExcludingAccruedInterestAfterAllowanceForCreditLossMaturityAllocatedAndSingleMaturityDateAfterYearOneThroughFive	0	usd
CY2022Q4	us-gaap	Federal Home Loan Bank Stock And Federal Reserve Bank Stock FederalHomeLoanBankStockAndFederalReserveBankStock	45600000	usd
CY2022Q4	us-gaap	Debt Securities Available For Sale Accrued Interest After Allowance For Credit Loss DebtSecuritiesAvailableForSaleAccruedInterestAfterAllowanceForCreditLoss	7000000	usd
CY2022Q4	us-gaap	Held To Maturity Securities Debt Maturities After One Through Five Years Fair Value HeldToMaturitySecuritiesDebtMaturitiesAfterOneThroughFiveYearsFairValue	0	usd
CY2022Q4	us-gaap	Available For Sale Securities Debt Maturities After One Through Five Years Amortized Cost AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughFiveYearsAmortizedCost	17509000	usd
CY2022Q4	us-gaap	Available For Sale Securities Debt Maturities After One Through Five Years Fair Value AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughFiveYearsFairValue	17419000	usd
CY2022Q4	us-gaap	Debt Securities Held To Maturity Amortized Cost Excluding Accrued Interest After Allowance For Credit Loss Maturity Allocated And Single Maturity Date After Year5 Through10 DebtSecuritiesHeldToMaturityAmortizedCostExcludingAccruedInterestAfterAllowanceForCreditLossMaturityAllocatedAndSingleMaturityDateAfterYear5Through10	0	usd
CY2022Q4	us-gaap	Held To Maturity Securities Debt Maturities After Five Through Ten Years Fair Value HeldToMaturitySecuritiesDebtMaturitiesAfterFiveThroughTenYearsFairValue	0	usd
CY2022Q4	us-gaap	Available For Sale Securities Debt Maturities After Five Through Ten Years Amortized Cost AvailableForSaleSecuritiesDebtMaturitiesAfterFiveThroughTenYearsAmortizedCost	3123000	usd
CY2022Q4	us-gaap	Available For Sale Securities Debt Maturities After Five Through Ten Years Fair Value AvailableForSaleSecuritiesDebtMaturitiesAfterFiveThroughTenYearsFairValue	3030000	usd
CY2022Q4	us-gaap	Debt Securities Held To Maturity Amortized Cost Excluding Accrued Interest After Allowance For Credit Loss Maturity Allocated And Single Maturity Date After Year10 DebtSecuritiesHeldToMaturityAmortizedCostExcludingAccruedInterestAfterAllowanceForCreditLossMaturityAllocatedAndSingleMaturityDateAfterYear10	0	usd
CY2022Q4	us-gaap	Held To Maturity Securities Debt Maturities After Ten Years Fair Value HeldToMaturitySecuritiesDebtMaturitiesAfterTenYearsFairValue	0	usd
CY2022Q4	us-gaap	Available For Sale Securities Debt Maturities Rolling After Year Ten Amortized Cost Basis AvailableForSaleSecuritiesDebtMaturitiesRollingAfterYearTenAmortizedCostBasis	20541000	usd
CY2022Q4	us-gaap	Available For Sale Securities Debt Maturities After Ten Years Fair Value AvailableForSaleSecuritiesDebtMaturitiesAfterTenYearsFairValue	18852000	usd
CY2022Q4	us-gaap	Debt Securities Held To Maturity Amortized Cost Excluding Accrued Interest After Allowance For Credit Loss Maturity Allocated And Single Maturity Date DebtSecuritiesHeldToMaturityAmortizedCostExcludingAccruedInterestAfterAllowanceForCreditLossMaturityAllocatedAndSingleMaturityDate	0	usd
CY2022Q4	us-gaap	Held To Maturity Securities Debt Maturities Single Maturity Date Fair Value HeldToMaturitySecuritiesDebtMaturitiesSingleMaturityDateFairValue	0	usd
CY2022Q4	us-gaap	Available For Sale Securities Debt Maturities Single Maturity Date Amortized Cost Basis AvailableForSaleSecuritiesDebtMaturitiesSingleMaturityDateAmortizedCostBasis	43163000	usd
CY2022Q4	us-gaap	Available For Sale Securities Debt Maturities Single Maturity Date AvailableForSaleSecuritiesDebtMaturitiesSingleMaturityDate	41388000	usd
CY2022Q4	us-gaap	Debt Securities Held To Maturity Excluding Accrued Interest After Allowance For Credit Loss DebtSecuritiesHeldToMaturityExcludingAccruedInterestAfterAllowanceForCreditLoss	747408000	usd
CY2022Q4	us-gaap	Held To Maturity Securities Fair Value HeldToMaturitySecuritiesFairValue	617741000	usd
CY2022Q4	us-gaap	Debt Securities Available For Sale Amortized Cost Excluding Accrued Interest After Allowance For Credit Loss DebtSecuritiesAvailableForSaleAmortizedCostExcludingAccruedInterestAfterAllowanceForCreditLoss	2119303000	usd
CY2022Q4	us-gaap	Debt Securities Available For Sale Excluding Accrued Interest DebtSecuritiesAvailableForSaleExcludingAccruedInterest	1871742000	usd
CY2022Q4	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position Less Than12 Months DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12Months	1058560000	usd
CY2022Q4	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position Less Than12 Months Accumulated Loss DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12MonthsAccumulatedLoss	73965000	usd
CY2022Q4	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position12 Months Or Longer DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLonger	753962000	usd
CY2022Q4	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position12 Months Or Longer Accumulated Loss DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLongerAccumulatedLoss	174697000	usd
CY2022Q4	us-gaap	Debt Securities Available For Sale Unrealized Loss Position DebtSecuritiesAvailableForSaleUnrealizedLossPosition	1812522000	usd
CY2022Q4	us-gaap	Debt Securities Available For Sale Unrealized Loss Position Accumulated Loss DebtSecuritiesAvailableForSaleUnrealizedLossPositionAccumulatedLoss	248662000	usd
CY2021Q4	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position Less Than12 Months DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12Months	1113319000	usd
CY2021Q4	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position Less Than12 Months Accumulated Loss DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12MonthsAccumulatedLoss	19831000	usd
CY2021Q4	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position12 Months Or Longer DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLonger	31287000	usd
CY2021Q4	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position12 Months Or Longer Accumulated Loss DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLongerAccumulatedLoss	1026000	usd
CY2021Q4	us-gaap	Debt Securities Available For Sale Unrealized Loss Position DebtSecuritiesAvailableForSaleUnrealizedLossPosition	1144606000	usd
CY2021Q4	us-gaap	Debt Securities Available For Sale Unrealized Loss Position Accumulated Loss DebtSecuritiesAvailableForSaleUnrealizedLossPositionAccumulatedLoss	20857000	usd
CY2022Q4	us-gaap	Debt Securities Held To Maturity Accrued Interest After Allowance For Credit Loss DebtSecuritiesHeldToMaturityAccruedInterestAfterAllowanceForCreditLoss	1300000	usd
CY2021Q4	us-gaap	Debt Securities Available For Sale Accrued Interest After Allowance For Credit Loss DebtSecuritiesAvailableForSaleAccruedInterestAfterAllowanceForCreditLoss	3400000	usd
CY2021Q4	us-gaap	Debt Securities Held To Maturity Accrued Interest After Allowance For Credit Loss DebtSecuritiesHeldToMaturityAccruedInterestAfterAllowanceForCreditLoss	1000000	usd
CY2022Q4	us-gaap	Financing Receivable Excluding Accrued Interest Before Allowance For Credit Loss FinancingReceivableExcludingAccruedInterestBeforeAllowanceForCreditLoss	8144724000	usd
CY2021Q4	us-gaap	Financing Receivable Excluding Accrued Interest Before Allowance For Credit Loss FinancingReceivableExcludingAccruedInterestBeforeAllowanceForCreditLoss	5925029000	usd
CY2022Q4	us-gaap	Financing Receivable Accrued Interest Before Allowance For Credit Loss FinancingReceivableAccruedInterestBeforeAllowanceForCreditLoss	28200000	usd
CY2021Q4	us-gaap	Financing Receivable Accrued Interest Before Allowance For Credit Loss FinancingReceivableAccruedInterestBeforeAllowanceForCreditLoss	14700000	usd
CY2022Q4	us-gaap	Notes Receivable Related Parties NotesReceivableRelatedParties	400000	usd
CY2021Q4	us-gaap	Notes Receivable Related Parties NotesReceivableRelatedParties	600000	usd
CY2022	sbcf	Increase Decrease In Number Of Notes Receivable Related Parties IncreaseDecreaseInNumberOfNotesReceivableRelatedParties	2	loan
CY2022Q4	us-gaap	Financing Receivable Excluding Accrued Interest Nonaccrual FinancingReceivableExcludingAccruedInterestNonaccrual	28843000	usd
CY2022Q4	us-gaap	Financing Receivable Excluding Accrued Interest Before Allowance For Credit Loss FinancingReceivableExcludingAccruedInterestBeforeAllowanceForCreditLoss	8144724000	usd
CY2021Q4	us-gaap	Financing Receivable Excluding Accrued Interest Nonaccrual FinancingReceivableExcludingAccruedInterestNonaccrual	30598000	usd
CY2021Q4	us-gaap	Financing Receivable Excluding Accrued Interest Before Allowance For Credit Loss FinancingReceivableExcludingAccruedInterestBeforeAllowanceForCreditLoss	5925029000	usd
CY2022	sbcf	Financing Receivable Nonaccrual No Related Allowance Interest Income FinancingReceivableNonaccrualNoRelatedAllowanceInterestIncome	1600000	usd
CY2021	sbcf	Financing Receivable Nonaccrual No Related Allowance Interest Income FinancingReceivableNonaccrualNoRelatedAllowanceInterestIncome	1200000	usd
CY2020	sbcf	Financing Receivable Nonaccrual No Related Allowance Interest Income FinancingReceivableNonaccrualNoRelatedAllowanceInterestIncome	900000	usd
CY2022Q4	us-gaap	Financing Receivable Excluding Accrued Interest Nonaccrual No Allowance FinancingReceivableExcludingAccruedInterestNonaccrualNoAllowance	17755000	usd
CY2022Q4	sbcf	Financing Receivable Excluding Accrued Interest Nonaccrual With Allowance For Credit Losses FinancingReceivableExcludingAccruedInterestNonaccrualWithAllowanceForCreditLosses	11088000	usd
CY2022Q4	us-gaap	Financing Receivable Excluding Accrued Interest Nonaccrual FinancingReceivableExcludingAccruedInterestNonaccrual	28843000	usd
CY2022Q4	sbcf	Financing Receivable Nonaccrual Related Allowance FinancingReceivableNonaccrualRelatedAllowance	2905000	usd
CY2021Q4	us-gaap	Financing Receivable Excluding Accrued Interest Nonaccrual No Allowance FinancingReceivableExcludingAccruedInterestNonaccrualNoAllowance	22566000	usd
CY2021Q4	sbcf	Financing Receivable Excluding Accrued Interest Nonaccrual With Allowance For Credit Losses FinancingReceivableExcludingAccruedInterestNonaccrualWithAllowanceForCreditLosses	8032000	usd
CY2021Q4	us-gaap	Financing Receivable Excluding Accrued Interest Nonaccrual FinancingReceivableExcludingAccruedInterestNonaccrual	30598000	usd
CY2021Q4	sbcf	Financing Receivable Nonaccrual Related Allowance FinancingReceivableNonaccrualRelatedAllowance	3804000	usd
CY2022Q4	sbcf	Financing Receivable Collateral Dependent Loans FinancingReceivableCollateralDependentLoans	26697000	usd
CY2021Q4	sbcf	Financing Receivable Collateral Dependent Loans FinancingReceivableCollateralDependentLoans	35716000	usd
CY2022Q4	us-gaap	Financing Receivable Excluding Accrued Interest Year One Originated Current Fiscal Year FinancingReceivableExcludingAccruedInterestYearOneOriginatedCurrentFiscalYear	1771386000	usd
CY2022	us-gaap	Financing Receivable Modifications Pre Modification Recorded Investment2 FinancingReceivableModificationsPreModificationRecordedInvestment2	900000	usd
CY2021	us-gaap	Financing Receivable Modifications Number Of Contracts2 FinancingReceivableModificationsNumberOfContracts2	12	contract
CY2022Q4	us-gaap	Financing Receivable Excluding Accrued Interest Year Two Originated Fiscal Year Before Current Fiscal Year FinancingReceivableExcludingAccruedInterestYearTwoOriginatedFiscalYearBeforeCurrentFiscalYear	1972420000	usd
CY2022Q4	us-gaap	Financing Receivable Excluding Accrued Interest Year Three Originated Two Years Before Current Fiscal Year FinancingReceivableExcludingAccruedInterestYearThreeOriginatedTwoYearsBeforeCurrentFiscalYear	752699000	usd
CY2022Q4	us-gaap	Financing Receivable Excluding Accrued Interest Year Four Originated Three Years Before Current Fiscal Year FinancingReceivableExcludingAccruedInterestYearFourOriginatedThreeYearsBeforeCurrentFiscalYear	749534000	usd
CY2022Q4	us-gaap	Financing Receivable Excluding Accrued Interest Year Five Originated Four Years Before Current Fiscal Year FinancingReceivableExcludingAccruedInterestYearFiveOriginatedFourYearsBeforeCurrentFiscalYear	545447000	usd
CY2022Q4	us-gaap	Financing Receivable Excluding Accrued Interest Originated More Than Five Years Before Current Fiscal Year FinancingReceivableExcludingAccruedInterestOriginatedMoreThanFiveYearsBeforeCurrentFiscalYear	1469313000	usd
CY2022Q4	us-gaap	Financing Receivable Excluding Accrued Interest Revolving FinancingReceivableExcludingAccruedInterestRevolving	883925000	usd
CY2022Q4	us-gaap	Financing Receivable Excluding Accrued Interest Before Allowance For Credit Loss FinancingReceivableExcludingAccruedInterestBeforeAllowanceForCreditLoss	8144724000	usd
CY2021Q4	us-gaap	Financing Receivable Excluding Accrued Interest Year One Originated Current Fiscal Year FinancingReceivableExcludingAccruedInterestYearOneOriginatedCurrentFiscalYear	1563032000	usd
CY2021Q4	us-gaap	Financing Receivable Excluding Accrued Interest Year Two Originated Fiscal Year Before Current Fiscal Year FinancingReceivableExcludingAccruedInterestYearTwoOriginatedFiscalYearBeforeCurrentFiscalYear	745584000	usd
CY2021Q4	us-gaap	Financing Receivable Excluding Accrued Interest Year Three Originated Two Years Before Current Fiscal Year FinancingReceivableExcludingAccruedInterestYearThreeOriginatedTwoYearsBeforeCurrentFiscalYear	751942000	usd
CY2021Q4	us-gaap	Financing Receivable Excluding Accrued Interest Year Four Originated Three Years Before Current Fiscal Year FinancingReceivableExcludingAccruedInterestYearFourOriginatedThreeYearsBeforeCurrentFiscalYear	581648000	usd
CY2021Q4	us-gaap	Financing Receivable Excluding Accrued Interest Year Five Originated Four Years Before Current Fiscal Year FinancingReceivableExcludingAccruedInterestYearFiveOriginatedFourYearsBeforeCurrentFiscalYear	423022000	usd
CY2021Q4	us-gaap	Financing Receivable Excluding Accrued Interest Originated More Than Five Years Before Current Fiscal Year FinancingReceivableExcludingAccruedInterestOriginatedMoreThanFiveYearsBeforeCurrentFiscalYear	1181217000	usd
CY2021Q4	us-gaap	Financing Receivable Excluding Accrued Interest Revolving FinancingReceivableExcludingAccruedInterestRevolving	678584000	usd
CY2021Q4	us-gaap	Financing Receivable Excluding Accrued Interest Before Allowance For Credit Loss FinancingReceivableExcludingAccruedInterestBeforeAllowanceForCreditLoss	5925029000	usd
CY2022	us-gaap	Financing Receivable Modifications Number Of Contracts2 FinancingReceivableModificationsNumberOfContracts2	9	contract
CY2021	us-gaap	Financing Receivable Modifications Pre Modification Recorded Investment2 FinancingReceivableModificationsPreModificationRecordedInvestment2	800000	usd
CY2020	us-gaap	Financing Receivable Modifications Number Of Contracts2 FinancingReceivableModificationsNumberOfContracts2	10	contract
CY2020	us-gaap	Financing Receivable Modifications Pre Modification Recorded Investment2 FinancingReceivableModificationsPreModificationRecordedInvestment2	700000	usd
CY2022Q4	sbcf	Financing Receivable Troubled Debt Restructuring Allowance For Credit Loss FinancingReceivableTroubledDebtRestructuringAllowanceForCreditLoss	200000	usd
CY2022	sbcf	Financing Receivable Troubled Debt Restructuring Modifications Number Of Contracts FinancingReceivableTroubledDebtRestructuringModificationsNumberOfContracts	3	contract
CY2022	us-gaap	Financing Receivable Modifications Subsequent Default Recorded Investment1 FinancingReceivableModificationsSubsequentDefaultRecordedInvestment1	41000	usd
CY2021	sbcf	Financing Receivable Troubled Debt Restructuring Modifications Number Of Contracts FinancingReceivableTroubledDebtRestructuringModificationsNumberOfContracts	3	contract
CY2021	us-gaap	Financing Receivable Modifications Subsequent Default Recorded Investment1 FinancingReceivableModificationsSubsequentDefaultRecordedInvestment1	200000	usd
CY2022	us-gaap	Financing Receivable Change In Present Value Interest Income FinancingReceivableChangeInPresentValueInterestIncome	37000	usd
CY2021	us-gaap	Financing Receivable Change In Present Value Interest Income FinancingReceivableChangeInPresentValueInterestIncome	16000	usd
CY2020	us-gaap	Financing Receivable Change In Present Value Interest Income FinancingReceivableChangeInPresentValueInterestIncome	100000	usd
CY2021Q4	us-gaap	Financing Receivable Allowance For Credit Loss Excluding Accrued Interest FinancingReceivableAllowanceForCreditLossExcludingAccruedInterest	83315000	usd
CY2022	us-gaap	Financing Receivable Excluding Accrued Interest Purchased With Credit Deterioration Allowance For Credit Loss At Acquisition Date FinancingReceivableExcludingAccruedInterestPurchasedWithCreditDeteriorationAllowanceForCreditLossAtAcquisitionDate	5275000	usd
CY2022	us-gaap	Financing Receivable Excluding Accrued Interest Credit Loss Expense Reversal FinancingReceivableExcludingAccruedInterestCreditLossExpenseReversal	26183000	usd
CY2022	us-gaap	Financing Receivable Excluding Accrued Interest Allowance For Credit Loss Writeoff FinancingReceivableExcludingAccruedInterestAllowanceForCreditLossWriteoff	2911000	usd
CY2022	us-gaap	Financing Receivable Excluding Accrued Interest Allowance For Credit Loss Recovery FinancingReceivableExcludingAccruedInterestAllowanceForCreditLossRecovery	2070000	usd
CY2022	sbcf	Financing Receivable Allowance For Credit Loss Excluding Accrued Interest Troubled Debt Restructuring Adjustments FinancingReceivableAllowanceForCreditLossExcludingAccruedInterestTroubledDebtRestructuringAdjustments	37000	usd
CY2022Q4	us-gaap	Financing Receivable Allowance For Credit Loss Excluding Accrued Interest FinancingReceivableAllowanceForCreditLossExcludingAccruedInterest	113895000	usd
CY2020Q4	us-gaap	Financing Receivable Allowance For Credit Loss Excluding Accrued Interest FinancingReceivableAllowanceForCreditLossExcludingAccruedInterest	92733000	usd
CY2021	us-gaap	Financing Receivable Excluding Accrued Interest Purchased With Credit Deterioration Allowance For Credit Loss At Acquisition Date FinancingReceivableExcludingAccruedInterestPurchasedWithCreditDeteriorationAllowanceForCreditLossAtAcquisitionDate	3046000	usd
CY2021	us-gaap	Financing Receivable Excluding Accrued Interest Credit Loss Expense Reversal FinancingReceivableExcludingAccruedInterestCreditLossExpenseReversal	-9421000	usd
CY2021	us-gaap	Financing Receivable Excluding Accrued Interest Allowance For Credit Loss Writeoff FinancingReceivableExcludingAccruedInterestAllowanceForCreditLossWriteoff	6098000	usd
CY2021	us-gaap	Financing Receivable Excluding Accrued Interest Allowance For Credit Loss Recovery FinancingReceivableExcludingAccruedInterestAllowanceForCreditLossRecovery	3071000	usd
CY2021	sbcf	Financing Receivable Allowance For Credit Loss Excluding Accrued Interest Troubled Debt Restructuring Adjustments FinancingReceivableAllowanceForCreditLossExcludingAccruedInterestTroubledDebtRestructuringAdjustments	16000	usd
CY2021Q4	us-gaap	Financing Receivable Allowance For Credit Loss Excluding Accrued Interest FinancingReceivableAllowanceForCreditLossExcludingAccruedInterest	83315000	usd
CY2019Q4	us-gaap	Financing Receivable Allowance For Credit Loss Excluding Accrued Interest FinancingReceivableAllowanceForCreditLossExcludingAccruedInterest	35154000	usd
CY2020	us-gaap	Financing Receivable Excluding Accrued Interest Purchased With Credit Deterioration Allowance For Credit Loss At Acquisition Date FinancingReceivableExcludingAccruedInterestPurchasedWithCreditDeteriorationAllowanceForCreditLossAtAcquisitionDate	6279000	usd
CY2020	us-gaap	Financing Receivable Excluding Accrued Interest Credit Loss Expense Reversal FinancingReceivableExcludingAccruedInterestCreditLossExpenseReversal	37779000	usd
CY2020	us-gaap	Financing Receivable Excluding Accrued Interest Allowance For Credit Loss Writeoff FinancingReceivableExcludingAccruedInterestAllowanceForCreditLossWriteoff	9842000	usd
CY2020	us-gaap	Financing Receivable Excluding Accrued Interest Allowance For Credit Loss Recovery FinancingReceivableExcludingAccruedInterestAllowanceForCreditLossRecovery	2251000	usd
CY2020	sbcf	Financing Receivable Allowance For Credit Loss Excluding Accrued Interest Troubled Debt Restructuring Adjustments FinancingReceivableAllowanceForCreditLossExcludingAccruedInterestTroubledDebtRestructuringAdjustments	114000	usd
CY2020Q4	us-gaap	Financing Receivable Allowance For Credit Loss Excluding Accrued Interest FinancingReceivableAllowanceForCreditLossExcludingAccruedInterest	92733000	usd
CY2020	sbcf	Accrued Interest Receivable Credit Loss Expense Reversal AccruedInterestReceivableCreditLossExpenseReversal	400000	usd
CY2022Q4	us-gaap	Financing Receivable Individually Evaluated For Impairment FinancingReceivableIndividuallyEvaluatedForImpairment	31514000	usd
CY2022Q4	us-gaap	Financing Receivable Allowance For Credit Losses Individually Evaluated For Impairment1 FinancingReceivableAllowanceForCreditLossesIndividuallyEvaluatedForImpairment1	3547000	usd
CY2022Q4	us-gaap	Financing Receivable Collectively Evaluated For Impairment FinancingReceivableCollectivelyEvaluatedForImpairment	8113210000	usd
CY2022Q4	us-gaap	Financing Receivable Allowance For Credit Losses Collectively Evaluated For Impairment FinancingReceivableAllowanceForCreditLossesCollectivelyEvaluatedForImpairment	110348000	usd
CY2022Q4	us-gaap	Financing Receivable Excluding Accrued Interest Before Allowance For Credit Loss FinancingReceivableExcludingAccruedInterestBeforeAllowanceForCreditLoss	8144724000	usd
CY2022Q4	us-gaap	Financing Receivable Allowance For Credit Loss Excluding Accrued Interest FinancingReceivableAllowanceForCreditLossExcludingAccruedInterest	113895000	usd
CY2021Q4	us-gaap	Financing Receivable Individually Evaluated For Impairment FinancingReceivableIndividuallyEvaluatedForImpairment	39863000	usd
CY2021Q4	us-gaap	Financing Receivable Allowance For Credit Losses Individually Evaluated For Impairment1 FinancingReceivableAllowanceForCreditLossesIndividuallyEvaluatedForImpairment1	4754000	usd
CY2021Q4	us-gaap	Financing Receivable Collectively Evaluated For Impairment FinancingReceivableCollectivelyEvaluatedForImpairment	5885166000	usd
CY2021Q4	us-gaap	Financing Receivable Allowance For Credit Losses Collectively Evaluated For Impairment FinancingReceivableAllowanceForCreditLossesCollectivelyEvaluatedForImpairment	78561000	usd
CY2021Q4	us-gaap	Financing Receivable Excluding Accrued Interest Before Allowance For Credit Loss FinancingReceivableExcludingAccruedInterestBeforeAllowanceForCreditLoss	5925029000	usd
CY2021Q4	us-gaap	Financing Receivable Allowance For Credit Loss Excluding Accrued Interest FinancingReceivableAllowanceForCreditLossExcludingAccruedInterest	83315000	usd
CY2022	us-gaap	Cash Flow Hedge Gain Loss To Be Reclassified Within Twelve Months CashFlowHedgeGainLossToBeReclassifiedWithinTwelveMonths	500000	usd
CY2022Q4	us-gaap	Land Land	37516000	usd
CY2022Q4	us-gaap	Property Plant And Equipment Gross PropertyPlantAndEquipmentGross	178801000	usd
CY2022Q4	us-gaap	Accumulated Depreciation Depletion And Amortization Property Plant And Equipment AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment	61909000	usd
CY2022Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	116892000	usd
CY2021Q4	us-gaap	Land Land	23359000	usd
CY2021Q4	us-gaap	Property Plant And Equipment Gross PropertyPlantAndEquipmentGross	129854000	usd
CY2021Q4	us-gaap	Accumulated Depreciation Depletion And Amortization Property Plant And Equipment AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment	57450000	usd
CY2021Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	72404000	usd
CY2021Q4	us-gaap	Goodwill Goodwill	252154000	usd
CY2020Q4	us-gaap	Goodwill Goodwill	221176000	usd
CY2019Q4	us-gaap	Goodwill Goodwill	205286000	usd
CY2022	us-gaap	Goodwill Acquired During Period GoodwillAcquiredDuringPeriod	228165000	usd
CY2021	us-gaap	Goodwill Acquired During Period GoodwillAcquiredDuringPeriod	30978000	usd
CY2020	us-gaap	Goodwill Acquired During Period GoodwillAcquiredDuringPeriod	15890000	usd
CY2022Q4	us-gaap	Goodwill Goodwill	480319000	usd
CY2021Q4	us-gaap	Goodwill Goodwill	252154000	usd
CY2020Q4	us-gaap	Goodwill Goodwill	221176000	usd
CY2021Q4	us-gaap	Finite Lived Intangible Assets Net FiniteLivedIntangibleAssetsNet	12998000	usd
CY2020Q4	us-gaap	Finite Lived Intangible Assets Net FiniteLivedIntangibleAssetsNet	14577000	usd
CY2019Q4	us-gaap	Finite Lived Intangible Assets Net FiniteLivedIntangibleAssetsNet	18305000	usd
CY2022	sbcf	Finite Lived Intangible Assets Acquired Including Purchase Accounting Adjustments FiniteLivedIntangibleAssetsAcquiredIncludingPurchaseAccountingAdjustments	67388000	usd
CY2021	sbcf	Finite Lived Intangible Assets Acquired Including Purchase Accounting Adjustments FiniteLivedIntangibleAssetsAcquiredIncludingPurchaseAccountingAdjustments	3454000	usd
CY2020	sbcf	Finite Lived Intangible Assets Acquired Including Purchase Accounting Adjustments FiniteLivedIntangibleAssetsAcquiredIncludingPurchaseAccountingAdjustments	2129000	usd
CY2022	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	9101000	usd
CY2021	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	5033000	usd
CY2020	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	5857000	usd
CY2022Q4	us-gaap	Finite Lived Intangible Assets Net FiniteLivedIntangibleAssetsNet	71285000	usd
CY2021Q4	us-gaap	Finite Lived Intangible Assets Net FiniteLivedIntangibleAssetsNet	12998000	usd
CY2020Q4	us-gaap	Finite Lived Intangible Assets Net FiniteLivedIntangibleAssetsNet	14577000	usd
CY2022	us-gaap	Finite Lived Intangible Assets Remaining Amortization Period1 FiniteLivedIntangibleAssetsRemainingAmortizationPeriod1	P49M
CY2021	us-gaap	Finite Lived Intangible Assets Remaining Amortization Period1 FiniteLivedIntangibleAssetsRemainingAmortizationPeriod1	P39M
CY2020	us-gaap	Finite Lived Intangible Assets Remaining Amortization Period1 FiniteLivedIntangibleAssetsRemainingAmortizationPeriod1	P44M
CY2022Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Next Twelve Months FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths	17700000	usd
CY2022Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Two FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo	13400000	usd
CY2022Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Three FiniteLivedIntangibleAssetsAmortizationExpenseYearThree	11300000	usd
CY2022Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Four FiniteLivedIntangibleAssetsAmortizationExpenseYearFour	9400000	usd
CY2022Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Five FiniteLivedIntangibleAssetsAmortizationExpenseYearFive	7700000	usd
CY2022Q4	sbcf	Mortgage Servicing Rights MortgageServicingRights	1700000	usd
CY2021Q4	sbcf	Mortgage Servicing Rights MortgageServicingRights	1800000	usd
CY2022	us-gaap	Shortterm Debt Maximum Amount Outstanding During Period ShorttermDebtMaximumAmountOutstandingDuringPeriod	172029000	usd
CY2021	us-gaap	Shortterm Debt Maximum Amount Outstanding During Period ShorttermDebtMaximumAmountOutstandingDuringPeriod	124101000	usd
CY2020	us-gaap	Shortterm Debt Maximum Amount Outstanding During Period ShorttermDebtMaximumAmountOutstandingDuringPeriod	119609000	usd
CY2022Q4	us-gaap	Short Term Debt Weighted Average Interest Rate ShortTermDebtWeightedAverageInterestRate	0.0189
CY2021Q4	us-gaap	Short Term Debt Weighted Average Interest Rate ShortTermDebtWeightedAverageInterestRate	0.0012
CY2020Q4	us-gaap	Short Term Debt Weighted Average Interest Rate ShortTermDebtWeightedAverageInterestRate	0.0016
CY2022	us-gaap	Shortterm Debt Average Outstanding Amount ShorttermDebtAverageOutstandingAmount	121318000	usd
CY2021	us-gaap	Shortterm Debt Average Outstanding Amount ShorttermDebtAverageOutstandingAmount	113881000	usd
CY2020	us-gaap	Shortterm Debt Average Outstanding Amount ShorttermDebtAverageOutstandingAmount	84514000	usd
CY2022	sbcf	Short Term Debt Weighted Average Interest Rate During Year ShortTermDebtWeightedAverageInterestRateDuringYear	0.0081
CY2021	sbcf	Short Term Debt Weighted Average Interest Rate During Year ShortTermDebtWeightedAverageInterestRateDuringYear	0.0012
CY2020	sbcf	Short Term Debt Weighted Average Interest Rate During Year ShortTermDebtWeightedAverageInterestRateDuringYear	0.0033
CY2022Q4	us-gaap	Line Of Credit Facility Remaining Borrowing Capacity LineOfCreditFacilityRemainingBorrowingCapacity	2400000000	usd
CY2022Q4	us-gaap	Federal Home Loan Bank Advances Weighted Average Interest Rate FederalHomeLoanBankAdvancesWeightedAverageInterestRate	0.0322
CY2022Q4	us-gaap	Debt Weighted Average Interest Rate DebtWeightedAverageInterestRate	0.0342
CY2022Q4	us-gaap	Debt Instrument Carrying Amount DebtInstrumentCarryingAmount	75261000	usd
CY2022Q4	sbcf	Trust Preferred Securities TrustPreferredSecurities	73000000	usd
CY2022Q4	sbcf	Common Equity Securities Issued By Trust CommonEquitySecuritiesIssuedByTrust	2261000	usd
CY2020	us-gaap	Amortization Method Qualified Affordable Housing Project Investments Amortization AmortizationMethodQualifiedAffordableHousingProjectInvestmentsAmortization	900000	usd
CY2022Q4	us-gaap	Debt Instrument Unamortized Discount DebtInstrumentUnamortizedDiscount	5600000	usd
CY2022	us-gaap	Defined Contribution Plan Cost Recognized DefinedContributionPlanCostRecognized	3500000	usd
CY2021	us-gaap	Defined Contribution Plan Cost Recognized DefinedContributionPlanCostRecognized	3100000	usd
CY2020	us-gaap	Defined Contribution Plan Cost Recognized DefinedContributionPlanCostRecognized	2800000	usd
CY2022	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	11155000	usd
CY2021	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	8685000	usd
CY2020	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	7304000	usd
CY2022	us-gaap	Employee Service Share Based Compensation Tax Benefit From Compensation Expense EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense	2827000	usd
CY2021	us-gaap	Employee Service Share Based Compensation Tax Benefit From Compensation Expense EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense	2067000	usd
CY2020	us-gaap	Employee Service Share Based Compensation Tax Benefit From Compensation Expense EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense	1737000	usd
CY2022Q4	us-gaap	Employee Service Share Based Compensation Nonvested Awards Total Compensation Cost Not Yet Recognized EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized	15811000	usd
CY2022	us-gaap	Employee Service Share Based Compensation Nonvested Awards Total Compensation Cost Not Yet Recognized Period For Recognition1 EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedPeriodForRecognition1	P1Y10M6D
CY2022Q4	us-gaap	Share Based Compensation Shares Authorized Under Stock Option Plans Exercise Price Range Number Of Outstanding Options ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeNumberOfOutstandingOptions	837622	shares
CY2022	us-gaap	Sharebased Compensation Shares Authorized Under Stock Option Plans Exercise Price Range Outstanding Options Weighted Average Remaining Contractual Term2 SharebasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeOutstandingOptionsWeightedAverageRemainingContractualTerm2	P3Y3M
CY2022Q4	us-gaap	Share Based Compensation Shares Authorized Under Stock Option Plans Exercise Price Range Number Of Exercisable Options ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeNumberOfExercisableOptions	837622	shares
CY2022Q4	us-gaap	Sharebased Compensation Shares Authorized Under Stock Option Plans Exercise Price Range Exercisable Options Weighted Average Exercise Price1 SharebasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeExercisableOptionsWeightedAverageExercisePrice1	21.72
CY2022	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Discount From Market Price Purchase Date ShareBasedCompensationArrangementByShareBasedPaymentAwardDiscountFromMarketPricePurchaseDate	0.95
CY2022	us-gaap	Operating Lease Cost OperatingLeaseCost	8111000	usd
CY2021	us-gaap	Operating Lease Cost OperatingLeaseCost	5872000	usd
CY2020	us-gaap	Operating Lease Cost OperatingLeaseCost	5738000	usd
CY2022	us-gaap	Variable Lease Cost VariableLeaseCost	1599000	usd
CY2021	us-gaap	Variable Lease Cost VariableLeaseCost	996000	usd
CY2020	us-gaap	Variable Lease Cost VariableLeaseCost	1325000	usd
CY2022	us-gaap	Short Term Lease Cost ShortTermLeaseCost	427000	usd
CY2021	us-gaap	Short Term Lease Cost ShortTermLeaseCost	564000	usd
CY2020	us-gaap	Short Term Lease Cost ShortTermLeaseCost	497000	usd
CY2022	us-gaap	Sublease Income SubleaseIncome	704000	usd
CY2021	us-gaap	Sublease Income SubleaseIncome	601000	usd
CY2020	us-gaap	Sublease Income SubleaseIncome	684000	usd
CY2022	us-gaap	Lease Cost LeaseCost	9433000	usd
CY2021	us-gaap	Lease Cost LeaseCost	6831000	usd
CY2020	us-gaap	Lease Cost LeaseCost	6876000	usd
CY2022Q4	us-gaap	Operating Lease Right Of Use Asset OperatingLeaseRightOfUseAsset	47500000	usd
CY2021Q4	us-gaap	Operating Lease Right Of Use Asset OperatingLeaseRightOfUseAsset	35256000	usd
CY2022Q4	us-gaap	Operating Lease Liability OperatingLeaseLiability	50770000	usd
CY2021Q4	us-gaap	Operating Lease Liability OperatingLeaseLiability	38330000	usd
CY2022	us-gaap	Operating Lease Payments OperatingLeasePayments	16508000	usd
CY2021	us-gaap	Operating Lease Payments OperatingLeasePayments	11117000	usd
CY2022	us-gaap	Right Of Use Asset Obtained In Exchange For Operating Lease Liability RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability	5305000	usd
CY2021	us-gaap	Right Of Use Asset Obtained In Exchange For Operating Lease Liability RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability	12459000	usd
CY2022	sbcf	Right Of Use Asset Acquired In Acquisition RightOfUseAssetAcquiredInAcquisition	14597000	usd
CY2021	sbcf	Right Of Use Asset Acquired In Acquisition RightOfUseAssetAcquiredInAcquisition	2606000	usd
CY2022Q4	us-gaap	Operating Lease Weighted Average Remaining Lease Term1 OperatingLeaseWeightedAverageRemainingLeaseTerm1	P8Y
CY2021Q4	us-gaap	Operating Lease Weighted Average Remaining Lease Term1 OperatingLeaseWeightedAverageRemainingLeaseTerm1	P8Y3M18D
CY2022Q4	us-gaap	Operating Lease Weighted Average Discount Rate Percent OperatingLeaseWeightedAverageDiscountRatePercent	0.0464
CY2021Q4	us-gaap	Operating Lease Weighted Average Discount Rate Percent OperatingLeaseWeightedAverageDiscountRatePercent	0.0425
CY2022Q4	us-gaap	Lessee Operating Lease Liability Payments Due Next Twelve Months LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths	8880000	usd
CY2022Q4	us-gaap	Lessee Operating Lease Liability Payments Due Year Two LesseeOperatingLeaseLiabilityPaymentsDueYearTwo	8646000	usd
CY2022Q4	us-gaap	Lessee Operating Lease Liability Payments Due Year Three LesseeOperatingLeaseLiabilityPaymentsDueYearThree	8035000	usd
CY2022Q4	us-gaap	Lessee Operating Lease Liability Payments Due Year Four LesseeOperatingLeaseLiabilityPaymentsDueYearFour	7045000	usd
CY2022Q4	us-gaap	Lessee Operating Lease Liability Payments Due Year Five LesseeOperatingLeaseLiabilityPaymentsDueYearFive	6355000	usd
CY2022Q4	us-gaap	Lessee Operating Lease Liability Payments Due After Year Five LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive	21205000	usd
CY2022Q4	us-gaap	Lessee Operating Lease Liability Payments Due LesseeOperatingLeaseLiabilityPaymentsDue	60166000	usd
CY2022Q4	us-gaap	Lessee Operating Lease Liability Undiscounted Excess Amount LesseeOperatingLeaseLiabilityUndiscountedExcessAmount	9396000	usd
CY2022Q4	us-gaap	Operating Lease Liability OperatingLeaseLiability	50770000	usd
CY2022	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	2770000	usd
CY2021	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	23661000	usd
CY2020	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	21688000	usd
CY2022	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	-1266000	usd
CY2021	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	3882000	usd
CY2020	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	4471000	usd
CY2022	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	23710000	usd
CY2021	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	6800000	usd
CY2020	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	-2697000	usd
CY2022	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	6415000	usd
CY2021	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	-8000	usd
CY2020	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	-644000	usd
CY2022	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	31629000	usd
CY2021	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	34335000	usd
CY2020	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	22818000	usd
CY2022	us-gaap	Income Tax Reconciliation Change In Enacted Tax Rate IncomeTaxReconciliationChangeInEnactedTaxRate	29009000	usd
CY2021	us-gaap	Income Tax Reconciliation Change In Enacted Tax Rate IncomeTaxReconciliationChangeInEnactedTaxRate	33335000	usd
CY2020	us-gaap	Income Tax Reconciliation Change In Enacted Tax Rate IncomeTaxReconciliationChangeInEnactedTaxRate	21122000	usd
CY2022	sbcf	Effective Income Tax Rate Reconciliation Tax Law Changes From Coronavirus Aid And Economic Securities Act Amount EffectiveIncomeTaxRateReconciliationTaxLawChangesFromCoronavirusAidAndEconomicSecuritiesActAmount	0	usd
CY2021	sbcf	Effective Income Tax Rate Reconciliation Tax Law Changes From Coronavirus Aid And Economic Securities Act Amount EffectiveIncomeTaxRateReconciliationTaxLawChangesFromCoronavirusAidAndEconomicSecuritiesActAmount	0	usd
CY2020	sbcf	Effective Income Tax Rate Reconciliation Tax Law Changes From Coronavirus Aid And Economic Securities Act Amount EffectiveIncomeTaxRateReconciliationTaxLawChangesFromCoronavirusAidAndEconomicSecuritiesActAmount	-375000	usd
CY2022	us-gaap	Income Tax Reconciliation Nondeductible Expense IncomeTaxReconciliationNondeductibleExpense	924000	usd
CY2021	us-gaap	Income Tax Reconciliation Nondeductible Expense IncomeTaxReconciliationNondeductibleExpense	419000	usd
CY2020	us-gaap	Income Tax Reconciliation Nondeductible Expense IncomeTaxReconciliationNondeductibleExpense	199000	usd
CY2022	sbcf	Affordable Housing Project Tax Credits AffordableHousingProjectTaxCredits	2000000	usd
CY2022	us-gaap	Income Tax Reconciliation Tax Exempt Income IncomeTaxReconciliationTaxExemptIncome	1341000	usd
CY2021	us-gaap	Income Tax Reconciliation Tax Exempt Income IncomeTaxReconciliationTaxExemptIncome	1276000	usd
CY2020	us-gaap	Income Tax Reconciliation Tax Exempt Income IncomeTaxReconciliationTaxExemptIncome	1110000	usd
CY2022	us-gaap	Income Tax Reconciliation State And Local Income Taxes IncomeTaxReconciliationStateAndLocalIncomeTaxes	-1081000	usd
CY2021	us-gaap	Income Tax Reconciliation State And Local Income Taxes IncomeTaxReconciliationStateAndLocalIncomeTaxes	-813000	usd
CY2020	us-gaap	Income Tax Reconciliation State And Local Income Taxes IncomeTaxReconciliationStateAndLocalIncomeTaxes	-804000	usd
CY2022	us-gaap	Income Tax Reconciliation Tax Credits Investment IncomeTaxReconciliationTaxCreditsInvestment	406000	usd
CY2021	us-gaap	Income Tax Reconciliation Tax Credits Investment IncomeTaxReconciliationTaxCreditsInvestment	213000	usd
CY2020	us-gaap	Income Tax Reconciliation Tax Credits Investment IncomeTaxReconciliationTaxCreditsInvestment	72000	usd
CY2022	us-gaap	Income Tax Reconciliation Nondeductible Expense Share Based Compensation Cost IncomeTaxReconciliationNondeductibleExpenseShareBasedCompensationCost	-992000	usd
CY2021	us-gaap	Income Tax Reconciliation Nondeductible Expense Share Based Compensation Cost IncomeTaxReconciliationNondeductibleExpenseShareBasedCompensationCost	-1239000	usd
CY2020	us-gaap	Income Tax Reconciliation Nondeductible Expense Share Based Compensation Cost IncomeTaxReconciliationNondeductibleExpenseShareBasedCompensationCost	-111000	usd
CY2022	sbcf	Effective Income Tax Rate Reconciliation Nondeductible Expense Executive Compensation Disallowance Amount EffectiveIncomeTaxRateReconciliationNondeductibleExpenseExecutiveCompensationDisallowanceAmount	402000	usd
CY2021	sbcf	Effective Income Tax Rate Reconciliation Nondeductible Expense Executive Compensation Disallowance Amount EffectiveIncomeTaxRateReconciliationNondeductibleExpenseExecutiveCompensationDisallowanceAmount	253000	usd
CY2020	sbcf	Effective Income Tax Rate Reconciliation Nondeductible Expense Executive Compensation Disallowance Amount EffectiveIncomeTaxRateReconciliationNondeductibleExpenseExecutiveCompensationDisallowanceAmount	0	usd
CY2022	us-gaap	Income Tax Reconciliation Other Adjustments IncomeTaxReconciliationOtherAdjustments	-36000	usd
CY2022	us-gaap	Amortization Method Qualified Affordable Housing Project Investments Amortization AmortizationMethodQualifiedAffordableHousingProjectInvestmentsAmortization	2500000	usd
CY2021	us-gaap	Income Tax Reconciliation Other Adjustments IncomeTaxReconciliationOtherAdjustments	-5000	usd
CY2020	us-gaap	Income Tax Reconciliation Other Adjustments IncomeTaxReconciliationOtherAdjustments	142000	usd
CY2022	sbcf	Current Federal Tax Benefit Provision Before Valuation Allowance CurrentFederalTaxBenefitProvisionBeforeValuationAllowance	26479000	usd
CY2021	sbcf	Current Federal Tax Benefit Provision Before Valuation Allowance CurrentFederalTaxBenefitProvisionBeforeValuationAllowance	30461000	usd
CY2020	sbcf	Current Federal Tax Benefit Provision Before Valuation Allowance CurrentFederalTaxBenefitProvisionBeforeValuationAllowance	18991000	usd
CY2022	sbcf	Current State And Local Tax Benefit Provision Before Valuation Allowance CurrentStateAndLocalTaxBenefitProvisionBeforeValuationAllowance	5150000	usd
CY2021	sbcf	Current State And Local Tax Benefit Provision Before Valuation Allowance CurrentStateAndLocalTaxBenefitProvisionBeforeValuationAllowance	3874000	usd
CY2020	sbcf	Current State And Local Tax Benefit Provision Before Valuation Allowance CurrentStateAndLocalTaxBenefitProvisionBeforeValuationAllowance	3827000	usd
CY2022	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	31629000	usd
CY2021	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	34335000	usd
CY2020	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	22818000	usd
CY2022Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Provision For Loan Losses DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsProvisionForLoanLosses	31097000	usd
CY2021Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Provision For Loan Losses DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsProvisionForLoanLosses	22686000	usd
CY2022Q4	sbcf	Deferred Tax Assets Other Real Estate Owned DeferredTaxAssetsOtherRealEstateOwned	591000	usd
CY2021Q4	sbcf	Deferred Tax Assets Other Real Estate Owned DeferredTaxAssetsOtherRealEstateOwned	52000	usd
CY2022Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Share Based Compensation Cost DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsShareBasedCompensationCost	2931000	usd
CY2021Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Share Based Compensation Cost DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsShareBasedCompensationCost	2323000	usd
CY2022Q4	us-gaap	Deferred Tax Assets Operating Loss Carryforwards Domestic DeferredTaxAssetsOperatingLossCarryforwardsDomestic	3150000	usd
CY2021Q4	us-gaap	Deferred Tax Assets Operating Loss Carryforwards Domestic DeferredTaxAssetsOperatingLossCarryforwardsDomestic	2138000	usd
CY2022Q4	us-gaap	Deferred Tax Assets Operating Loss Carryforwards State And Local DeferredTaxAssetsOperatingLossCarryforwardsStateAndLocal	1117000	usd
CY2021Q4	us-gaap	Deferred Tax Assets Operating Loss Carryforwards State And Local DeferredTaxAssetsOperatingLossCarryforwardsStateAndLocal	1226000	usd
CY2022Q4	sbcf	Deferred Tax Assets Operating Lease Liability DeferredTaxAssetsOperatingLeaseLiability	12868000	usd
CY2021Q4	sbcf	Deferred Tax Assets Operating Lease Liability DeferredTaxAssetsOperatingLeaseLiability	9399000	usd
CY2022Q4	us-gaap	Deferred Tax Assets Unrealized Losses On Availablefor Sale Securities Gross DeferredTaxAssetsUnrealizedLossesOnAvailableforSaleSecuritiesGross	59392000	usd
CY2021Q4	us-gaap	Deferred Tax Assets Unrealized Losses On Availablefor Sale Securities Gross DeferredTaxAssetsUnrealizedLossesOnAvailableforSaleSecuritiesGross	2287000	usd
CY2022Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Postretirement Benefits DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsPostretirementBenefits	2766000	usd
CY2021Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Postretirement Benefits DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsPostretirementBenefits	3276000	usd
CY2022Q4	us-gaap	Deferred Tax Assets Deferred Income DeferredTaxAssetsDeferredIncome	16035000	usd
CY2021Q4	us-gaap	Deferred Tax Assets Deferred Income DeferredTaxAssetsDeferredIncome	0	usd
CY2022Q4	us-gaap	Deferred Tax Assets Other Loss Carryforwards DeferredTaxAssetsOtherLossCarryforwards	1755000	usd
CY2021Q4	us-gaap	Deferred Tax Assets Other Loss Carryforwards DeferredTaxAssetsOtherLossCarryforwards	477000	usd
CY2022Q4	us-gaap	Deferred Tax Assets Gross DeferredTaxAssetsGross	131702000	usd
CY2021Q4	us-gaap	Deferred Tax Assets Gross DeferredTaxAssetsGross	43864000	usd
CY2022Q4	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	0	usd
CY2021Q4	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	0	usd
CY2022Q4	us-gaap	Deferred Tax Assets Net DeferredTaxAssetsNet	131702000	usd
CY2021Q4	us-gaap	Deferred Tax Assets Net DeferredTaxAssetsNet	43864000	usd
CY2022Q4	sbcf	Deferred Tax Liabilities Deposit Base Intangible DeferredTaxLiabilitiesDepositBaseIntangible	18767000	usd
CY2021Q4	sbcf	Deferred Tax Liabilities Deposit Base Intangible DeferredTaxLiabilitiesDepositBaseIntangible	3134000	usd
CY2022Q4	us-gaap	Deferred Tax Liabilities Tax Deferred Income DeferredTaxLiabilitiesTaxDeferredIncome	0	usd
CY2021Q4	us-gaap	Deferred Tax Liabilities Tax Deferred Income DeferredTaxLiabilitiesTaxDeferredIncome	1660000	usd
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CY2021Q4	us-gaap	Deferred Tax Liabilities Property Plant And Equipment DeferredTaxLiabilitiesPropertyPlantAndEquipment	776000	usd
CY2022Q4	sbcf	Deferred Tax Liabilities Operating Lease Right Of Use Asset DeferredTaxLiabilitiesOperatingLeaseRightOfUseAsset	12039000	usd
CY2021Q4	sbcf	Deferred Tax Liabilities Operating Lease Right Of Use Asset DeferredTaxLiabilitiesOperatingLeaseRightOfUseAsset	8645000	usd
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CY2021Q4	us-gaap	Deferred Tax Liabilities Other DeferredTaxLiabilitiesOther	2328000	usd
CY2022Q4	us-gaap	Deferred Income Tax Liabilities DeferredIncomeTaxLiabilities	37245000	usd
CY2021Q4	us-gaap	Deferred Income Tax Liabilities DeferredIncomeTaxLiabilities	16543000	usd
CY2022Q4	us-gaap	Deferred Tax Assets Liabilities Net DeferredTaxAssetsLiabilitiesNet	94457000	usd
CY2021Q4	us-gaap	Deferred Tax Assets Liabilities Net DeferredTaxAssetsLiabilitiesNet	27321000	usd
CY2022	sbcf	Unrealized Losses Resulting In Deferred Tax Asset UnrealizedLossesResultingInDeferredTaxAsset	247400000	usd
CY2022Q4	us-gaap	Deferred Tax Assets Unrealized Losses On Availablefor Sale Securities Gross DeferredTaxAssetsUnrealizedLossesOnAvailableforSaleSecuritiesGross	59400000	usd
CY2021	sbcf	Unrealized Losses Resulting In Deferred Tax Asset UnrealizedLossesResultingInDeferredTaxAsset	9300000	usd
CY2021Q4	us-gaap	Deferred Tax Assets Unrealized Losses On Availablefor Sale Securities Gross DeferredTaxAssetsUnrealizedLossesOnAvailableforSaleSecuritiesGross	2300000	usd
CY2022Q4	us-gaap	Deferred Tax Assets Liabilities Net DeferredTaxAssetsLiabilitiesNet	94500000	usd
CY2021Q4	us-gaap	Deferred Income Tax Assets Net DeferredIncomeTaxAssetsNet	27300000	usd
CY2022Q4	us-gaap	Deferred Tax Assets Liabilities Net DeferredTaxAssetsLiabilitiesNet	94500000	usd
CY2022Q4	us-gaap	Deferred Tax Assets Liabilities Net DeferredTaxAssetsLiabilitiesNet	94500000	usd
CY2022Q4	us-gaap	Income Tax Examination Penalties And Interest Accrued IncomeTaxExaminationPenaltiesAndInterestAccrued	0	usd
CY2022	sbcf	Discrete Income Tax Expense Benefit Share Based Compensation DiscreteIncomeTaxExpenseBenefitShareBasedCompensation	-1100000	usd
CY2021	sbcf	Discrete Income Tax Expense Benefit Share Based Compensation DiscreteIncomeTaxExpenseBenefitShareBasedCompensation	-900000	usd
CY2020	sbcf	Discrete Income Tax Expense Benefit Share Based Compensation DiscreteIncomeTaxExpenseBenefitShareBasedCompensation	-100000	usd
CY2022	us-gaap	Amortization Method Qualified Affordable Housing Project Investments Amortization AmortizationMethodQualifiedAffordableHousingProjectInvestmentsAmortization	2500000	usd
CY2021	us-gaap	Amortization Method Qualified Affordable Housing Project Investments Amortization AmortizationMethodQualifiedAffordableHousingProjectInvestmentsAmortization	1600000	usd
CY2022Q4	sbcf	Affordable Housing Project Tax Benefits AffordableHousingProjectTaxBenefits	1000000	usd
CY2021	sbcf	Affordable Housing Project Tax Credits AffordableHousingProjectTaxCredits	1200000	usd
CY2021	us-gaap	Amortization Method Qualified Affordable Housing Project Investments Amortization AmortizationMethodQualifiedAffordableHousingProjectInvestmentsAmortization	1600000	usd
CY2021Q4	sbcf	Affordable Housing Project Tax Benefits AffordableHousingProjectTaxBenefits	700000	usd
CY2020	sbcf	Affordable Housing Project Tax Credits AffordableHousingProjectTaxCredits	800000	usd
CY2020	us-gaap	Amortization Method Qualified Affordable Housing Project Investments Amortization AmortizationMethodQualifiedAffordableHousingProjectInvestmentsAmortization	900000	usd
CY2020Q4	sbcf	Affordable Housing Project Tax Benefits AffordableHousingProjectTaxBenefits	200000	usd
CY2022	us-gaap	Affordable Housing Tax Credits And Other Tax Benefits Amount AffordableHousingTaxCreditsAndOtherTaxBenefitsAmount	27300000	usd
CY2021	us-gaap	Affordable Housing Tax Credits And Other Tax Benefits Amount AffordableHousingTaxCreditsAndOtherTaxBenefitsAmount	30100000	usd
CY2022Q4	sbcf	Affordable Housing Program Obligation Unfunded AffordableHousingProgramObligationUnfunded	17600000	usd
CY2021Q4	sbcf	Affordable Housing Program Obligation Unfunded AffordableHousingProgramObligationUnfunded	23200000	usd
CY2022Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	0	usd
CY2020	sbcf	Effective Income Tax Rate Reconciliation Tax Law Changes From Coronavirus Aid And Economic Securities Act Amount EffectiveIncomeTaxRateReconciliationTaxLawChangesFromCoronavirusAidAndEconomicSecuritiesActAmount	-400000	usd
CY2022Q4	sbcf	Capital Conservation Buffer Rate CapitalConservationBufferRate	0.025
CY2022Q4	sbcf	Common Stock Number Of Votes Per Share CommonStockNumberOfVotesPerShare	1	votespershare
CY2022Q4	us-gaap	Stock Repurchase Program Number Of Shares Authorized To Be Repurchased StockRepurchaseProgramNumberOfSharesAuthorizedToBeRepurchased	100000000	shares
CY2022Q4	sbcf	Commitment To Extend Credit Amount CommitmentToExtendCreditAmount	2814924000	usd
CY2021Q4	sbcf	Commitment To Extend Credit Amount CommitmentToExtendCreditAmount	1980338000	usd
CY2022Q4	sbcf	Unfunded Limited Partner Equity Commitment UnfundedLimitedPartnerEquityCommitment	26761000	usd
CY2021Q4	sbcf	Unfunded Limited Partner Equity Commitment UnfundedLimitedPartnerEquityCommitment	36393000	usd
CY2022	us-gaap	Business Combination Acquisition Related Costs BusinessCombinationAcquisitionRelatedCosts	27900000	usd
CY2021	us-gaap	Business Combination Acquisition Related Costs BusinessCombinationAcquisitionRelatedCosts	7900000	usd
CY2022Q4	sbcf	Unfunded Limited Partner Equity Commitment UnfundedLimitedPartnerEquityCommitment	26800000	usd
CY2022Q4	us-gaap	Loans Held For Sale Fair Value Disclosure LoansHeldForSaleFairValueDisclosure	3151000	usd
CY2021Q4	us-gaap	Loans Held For Sale Fair Value Disclosure LoansHeldForSaleFairValueDisclosure	31791000	usd
CY2022Q4	sbcf	Loans Held For Sale Accrued Interest LoansHeldForSaleAccruedInterest	3071000	usd
CY2021Q4	sbcf	Loans Held For Sale Accrued Interest LoansHeldForSaleAccruedInterest	30963000	usd
CY2022	us-gaap	Gain Loss On Sales Of Loans Net GainLossOnSalesOfLoansNet	80000	usd
CY2021	us-gaap	Gain Loss On Sales Of Loans Net GainLossOnSalesOfLoansNet	828000	usd
CY2022Q4	sbcf	Capitalization Rates Utilized To Determine Fair Value Of Underlying Collateral Averaged Percentage CapitalizationRatesUtilizedToDetermineFairValueOfUnderlyingCollateralAveragedPercentage	0.067
CY2020	us-gaap	Business Combination Acquisition Related Costs BusinessCombinationAcquisitionRelatedCosts	9100000	usd
CY2022	us-gaap	Business Acquisitions Pro Forma Revenue BusinessAcquisitionsProFormaRevenue	448139000	usd
CY2021	us-gaap	Business Acquisitions Pro Forma Revenue BusinessAcquisitionsProFormaRevenue	406482000	usd
CY2022	us-gaap	Business Acquisitions Pro Forma Net Income Loss BusinessAcquisitionsProFormaNetIncomeLoss	161274000	usd
CY2021	us-gaap	Business Acquisitions Pro Forma Net Income Loss BusinessAcquisitionsProFormaNetIncomeLoss	191862000	usd
CY2022	us-gaap	Business Acquisition Pro Forma Earnings Per Share Basic BusinessAcquisitionProFormaEarningsPerShareBasic	2530
CY2021	us-gaap	Business Acquisition Pro Forma Earnings Per Share Basic BusinessAcquisitionProFormaEarningsPerShareBasic	2680
CY2022	us-gaap	Business Acquisition Pro Forma Earnings Per Share Diluted BusinessAcquisitionProFormaEarningsPerShareDiluted	2510
CY2021	us-gaap	Business Acquisition Pro Forma Earnings Per Share Diluted BusinessAcquisitionProFormaEarningsPerShareDiluted	2670
CY2022	dei	Auditor Firm AuditorFirmId	173

Files In Submission

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$SBCF
Seacoast Banking Corporation of Florida Stock $sbcf

2023 Q1 Form 10-K Financial Statement

#000073070823000017 Filed on March 01, 2023

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$SBCF Seacoast Banking Corporation of Florida Stock $sbcf

2023 Q1 Form 10-K Financial Statement

#000073070823000017 Filed on March 01, 2023

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$SBCF
Seacoast Banking Corporation of Florida Stock $sbcf