$SBCF
Seacoast Banking Corporation of Florida Stock $sbcf

$sbcf Overview Financials Valuation SEC Filings Company Website

2021 Q3 Form 10-Q Financial Statement

#000073070821000074 Filed on November 03, 2021

Income Statement

Concept	2021 Q3	2020 Q4	2020 Q3
Revenue	$73.21M		$68.14M
YoY Change	7.44%		-6.43%
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	$1.300M	$1.500M	$1.500M
YoY Change	-13.33%	0.0%	-6.25%
% of Gross Profit
Operating Expenses
YoY Change
Operating Profit
YoY Change
Interest Expense	$1.885M		$4.637M
YoY Change	-59.35%		-60.96%
% of Operating Profit
Other Income/Expense, Net
YoY Change
Pretax Income	$29.99M	$38.14M	$29.62M
YoY Change	1.26%	8.11%	-13.03%
Income Tax	$7.049M	$8.790M	$6.992M
% Of Pretax Income	23.5%	23.05%	23.61%
Net Earnings	$22.94M	$29.35M	$22.63M
YoY Change	1.4%	7.98%	-11.63%
Net Earnings / Revenue	31.34%		33.21%
Basic Earnings Per Share	$0.40		$0.42
Diluted Earnings Per Share	$0.40	$526.5K	$0.42
COMMON SHARES
Basic Shares Outstanding	57.15M shares		53.98M shares
Diluted Shares Outstanding	57.65M shares		54.30M shares

Balance Sheet

Concept	2021 Q3	2020 Q4	2020 Q3
SHORT-TERM ASSETS
Cash & Short-Term Investments
YoY Change
Cash & Equivalents	$1.228B	$404.1M	$309.6M
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	$71.25M	$75.12M	$76.39M
YoY Change	-6.73%	12.76%	12.55%
Goodwill	$252.2M	$221.2M	$221.2M
YoY Change	14.01%	7.74%	7.74%
Intangibles	$16.15M	$16.75M	$18.16M
YoY Change	-11.07%	-16.55%	-14.8%
Long-Term Investments
YoY Change
Other Assets	$153.6M	$162.2M	$156.7M
YoY Change	-1.98%	14.44%	21.13%
Total Long-Term Assets
YoY Change
TOTAL ASSETS
Total Short-Term Assets
Total Long-Term Assets
Total Assets	$9.893B	$8.342B	$8.288B
YoY Change	19.37%	17.36%	20.28%
SHORT-TERM LIABILITIES
YoY Change
Accounts Payable
YoY Change
Accrued Expenses
YoY Change
Deferred Revenue
YoY Change
Short-Term Debt	$105.5M	$119.6M	$89.50M
YoY Change	17.88%	38.91%	27.13%
Long-Term Debt Due
YoY Change
Total Short-Term Liabilities	$105.5M	$119.6M	$89.50M
YoY Change	17.88%	38.91%	27.13%
LONG-TERM LIABILITIES
Long-Term Debt	$71.60M	$71.40M	$71.30M
YoY Change	0.42%	0.42%	0.42%
Other Long-Term Liabilities	$91.68M	$88.46M	$78.85M
YoY Change	16.27%	34.2%	24.38%
Total Long-Term Liabilities	$91.68M	$88.46M	$78.85M
YoY Change	16.27%	34.2%	24.38%
TOTAL LIABILITIES
Total Short-Term Liabilities	$105.5M	$119.6M	$89.50M
Total Long-Term Liabilities	$91.68M	$88.46M	$78.85M
Total Liabilities	$8.603B	$7.212B	$7.189B
YoY Change	19.66%	17.79%	21.28%
SHAREHOLDERS EQUITY
Retained Earnings		$256.7M
YoY Change		31.09%
Common Stock	$5.835M	$5.524M	$5.517M
YoY Change	5.76%	7.24%	7.17%
Preferred Stock
YoY Change
Treasury Stock (at cost)		$8.285M
YoY Change		37.35%
Treasury Stock Shares		341.8K shares
Shareholders Equity	$1.291B	$1.130B	$1.098B
YoY Change
Total Liabilities & Shareholders Equity	$9.893B	$8.342B	$8.288B
YoY Change	19.37%	17.36%	20.28%

Cashflow Statement

Concept	2021 Q3	2020 Q4	2020 Q3
OPERATING ACTIVITIES
Net Income	$22.94M	$29.35M	$22.63M
YoY Change	1.4%	7.98%	-11.63%
Depreciation, Depletion And Amortization	$1.300M	$1.500M	$1.500M
YoY Change	-13.33%	0.0%	-6.25%
Cash From Operating Activities	$23.10M	$42.40M	-$12.10M
YoY Change	-290.91%	0.0%	-146.72%
INVESTING ACTIVITIES
Capital Expenditures	-$1.000M	-$200.0K	-$500.0K
YoY Change	100.0%	0.0%	-37.5%
Acquisitions
YoY Change
Other Investing Activities	-$193.8M	$39.80M	-$18.00M
YoY Change	976.67%	-116.42%	-78.31%
Cash From Investing Activities	-$194.8M	$39.60M	-$18.50M
YoY Change	952.97%	-116.32%	-77.92%
FINANCING ACTIVITIES
Cash Dividend Paid
YoY Change
Common Stock Issuance & Retirement, Net
YoY Change
Debt Paid & Issued, Net
YoY Change
Cash From Financing Activities	-49.40M	12.50M	-184.1M
YoY Change	-73.17%	-93.51%	-705.59%
NET CHANGE
Cash From Operating Activities	23.10M	42.40M	-12.10M
Cash From Investing Activities	-194.8M	39.60M	-18.50M
Cash From Financing Activities	-49.40M	12.50M	-184.1M
Net Change In Cash	-221.1M	94.50M	-214.7M
YoY Change	2.98%	-1327.27%	680.73%
FREE CASH FLOW
Cash From Operating Activities	$23.10M	$42.40M	-$12.10M
Capital Expenditures	-$1.000M	-$200.0K	-$500.0K
Free Cash Flow	$24.10M	$42.60M	-$11.60M
YoY Change	-307.76%	0.0%	-143.45%

Facts In Submission

Frame	Concept Type	Concept / XBRL Key	Value	Unit
	dei	Amendment Flag AmendmentFlag	false
	dei	Document Fiscal Year Focus DocumentFiscalYearFocus	2021
	dei	Document Fiscal Period Focus DocumentFiscalPeriodFocus	Q3
	dei	Entity Central Index Key EntityCentralIndexKey	0000730708
	dei	Current Fiscal Year End Date CurrentFiscalYearEndDate	--12-31
CY2019	us-gaap	Accounting Standards Update Extensible List AccountingStandardsUpdateExtensibleList	http://fasb.org/us-gaap/2021-01-31#AccountingStandardsUpdate201613Member
	dei	Document Type DocumentType	10-Q
	dei	Document Quarterly Report DocumentQuarterlyReport	true
	dei	Document Period End Date DocumentPeriodEndDate	2021-09-30
	dei	Document Transition Report DocumentTransitionReport	false
	dei	Entity File Number EntityFileNumber	0-13660
	dei	Entity Registrant Name EntityRegistrantName	Seacoast Banking Corporation of Florida
	dei	Entity Incorporation State Country Code EntityIncorporationStateCountryCode	FL
	dei	Entity Tax Identification Number EntityTaxIdentificationNumber	59-2260678
	dei	Entity Address Address Line1 EntityAddressAddressLine1	815 COLORADO AVENUE,
	dei	Entity Address City Or Town EntityAddressCityOrTown	STUART
	dei	Entity Address State Or Province EntityAddressStateOrProvince	FL
	dei	Entity Address Postal Zip Code EntityAddressPostalZipCode	34994
	dei	City Area Code CityAreaCode	(772)
	dei	Local Phone Number LocalPhoneNumber	287-4000
	dei	Local Phone Number LocalPhoneNumber	287-4000
	dei	Security12b Title Security12bTitle	Common Stock
	dei	Security12b Title Security12bTitle	Common Stock
	dei	Trading Symbol TradingSymbol	SBCF
	dei	Security Exchange Name SecurityExchangeName	NASDAQ
	dei	Entity Current Reporting Status EntityCurrentReportingStatus	Yes
	dei	Entity Interactive Data Current EntityInteractiveDataCurrent	Yes
	dei	Entity Filer Category EntityFilerCategory	Large Accelerated Filer
	dei	Entity Small Business EntitySmallBusiness	false
	dei	Entity Emerging Growth Company EntityEmergingGrowthCompany	false
	dei	Entity Emerging Growth Company EntityEmergingGrowthCompany	false
	dei	Entity Shell Company EntityShellCompany	false
CY2021Q3	dei	Entity Common Stock Shares Outstanding EntityCommonStockSharesOutstanding	58349137	shares
CY2021Q3	us-gaap	Interest And Fee Income Loans And Leases InterestAndFeeIncomeLoansAndLeases	64424000	USD
CY2020Q3	us-gaap	Interest And Fee Income Loans And Leases InterestAndFeeIncomeLoansAndLeases	60487000	USD
	us-gaap	Interest And Fee Income Loans And Leases InterestAndFeeIncomeLoansAndLeases	187070000	USD
	us-gaap	Interest And Fee Income Loans And Leases InterestAndFeeIncomeLoansAndLeases	188771000	USD
CY2021Q3	us-gaap	Interest And Dividend Income Securities InterestAndDividendIncomeSecurities	7918000	USD
CY2020Q3	us-gaap	Interest And Dividend Income Securities InterestAndDividendIncomeSecurities	7097000	USD
	us-gaap	Interest And Dividend Income Securities InterestAndDividendIncomeSecurities	21070000	USD
	us-gaap	Interest And Dividend Income Securities InterestAndDividendIncomeSecurities	23609000	USD
CY2021Q3	sbcf	Interest On Federal Funds Sold And Interest Bearing Deposits InterestOnFederalFundsSoldAndInterestBearingDeposits	867000	USD
CY2020Q3	sbcf	Interest On Federal Funds Sold And Interest Bearing Deposits InterestOnFederalFundsSoldAndInterestBearingDeposits	556000	USD
	sbcf	Interest On Federal Funds Sold And Interest Bearing Deposits InterestOnFederalFundsSoldAndInterestBearingDeposits	2162000	USD
	sbcf	Interest On Federal Funds Sold And Interest Bearing Deposits InterestOnFederalFundsSoldAndInterestBearingDeposits	1974000	USD
CY2021Q3	us-gaap	Interest And Dividend Income Operating InterestAndDividendIncomeOperating	73209000	USD
CY2020Q3	us-gaap	Interest And Dividend Income Operating InterestAndDividendIncomeOperating	68140000	USD
	us-gaap	Interest And Dividend Income Operating InterestAndDividendIncomeOperating	210302000	USD
	us-gaap	Interest And Dividend Income Operating InterestAndDividendIncomeOperating	214354000	USD
CY2021Q3	us-gaap	Interest Expense Savings Deposits InterestExpenseSavingsDeposits	849000	USD
CY2020Q3	us-gaap	Interest Expense Savings Deposits InterestExpenseSavingsDeposits	1299000	USD
	us-gaap	Interest Expense Savings Deposits InterestExpenseSavingsDeposits	2894000	USD
	us-gaap	Interest Expense Savings Deposits InterestExpenseSavingsDeposits	5692000	USD
CY2021Q3	us-gaap	Interest Expense Time Deposits InterestExpenseTimeDeposits	583000	USD
CY2020Q3	us-gaap	Interest Expense Time Deposits InterestExpenseTimeDeposits	2673000	USD
	us-gaap	Interest Expense Time Deposits InterestExpenseTimeDeposits	2294000	USD
	us-gaap	Interest Expense Time Deposits InterestExpenseTimeDeposits	11261000	USD
CY2021Q3	us-gaap	Interest Expense Borrowings InterestExpenseBorrowings	453000	USD
CY2020Q3	us-gaap	Interest Expense Borrowings InterestExpenseBorrowings	665000	USD
	us-gaap	Interest Expense Borrowings InterestExpenseBorrowings	1378000	USD
	us-gaap	Interest Expense Borrowings InterestExpenseBorrowings	3449000	USD
CY2021Q3	us-gaap	Interest Expense InterestExpense	1885000	USD
CY2020Q3	us-gaap	Interest Expense InterestExpense	4637000	USD
	us-gaap	Interest Expense InterestExpense	6566000	USD
	us-gaap	Interest Expense InterestExpense	20402000	USD
CY2021Q3	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	71324000	USD
CY2020Q3	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	63503000	USD
	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	203736000	USD
	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	193952000	USD
CY2021Q3	sbcf	Financing Receivable And Accrued Interest Receivable Credit Loss Provision Reversal FinancingReceivableAndAccruedInterestReceivableCreditLossProvisionReversal	5091000	USD
CY2020Q3	sbcf	Financing Receivable And Accrued Interest Receivable Credit Loss Provision Reversal FinancingReceivableAndAccruedInterestReceivableCreditLossProvisionReversal	-845000	USD
	sbcf	Financing Receivable And Accrued Interest Receivable Credit Loss Provision Reversal FinancingReceivableAndAccruedInterestReceivableCreditLossProvisionReversal	-5479000	USD
	sbcf	Financing Receivable And Accrued Interest Receivable Credit Loss Provision Reversal FinancingReceivableAndAccruedInterestReceivableCreditLossProvisionReversal	36279000	USD
CY2021Q3	us-gaap	Interest Income Expense After Provision For Loan Loss InterestIncomeExpenseAfterProvisionForLoanLoss	66233000	USD
CY2020Q3	us-gaap	Interest Income Expense After Provision For Loan Loss InterestIncomeExpenseAfterProvisionForLoanLoss	64348000	USD
	us-gaap	Interest Income Expense After Provision For Loan Loss InterestIncomeExpenseAfterProvisionForLoanLoss	209215000	USD
	us-gaap	Interest Income Expense After Provision For Loan Loss InterestIncomeExpenseAfterProvisionForLoanLoss	157673000	USD
CY2021Q3	sbcf	Non Interest Income Excluding Gain Loss On Loans Sale And Investments NonInterestIncomeExcludingGainLossOnLoansSaleAndInvestments	19058000	USD
CY2020Q3	sbcf	Non Interest Income Excluding Gain Loss On Loans Sale And Investments NonInterestIncomeExcludingGainLossOnLoansSaleAndInvestments	16942000	USD
	sbcf	Non Interest Income Excluding Gain Loss On Loans Sale And Investments NonInterestIncomeExcludingGainLossOnLoansSaleAndInvestments	52220000	USD
	sbcf	Non Interest Income Excluding Gain Loss On Loans Sale And Investments NonInterestIncomeExcludingGainLossOnLoansSaleAndInvestments	45387000	USD
CY2021Q3	us-gaap	Gain Loss On Investments GainLossOnInvestments	-30000	USD
CY2020Q3	us-gaap	Gain Loss On Investments GainLossOnInvestments	4000	USD
	us-gaap	Gain Loss On Investments GainLossOnInvestments	-199000	USD
	us-gaap	Gain Loss On Investments GainLossOnInvestments	1253000	USD
CY2021Q3	us-gaap	Noninterest Income NoninterestIncome	19028000	USD
CY2020Q3	us-gaap	Noninterest Income NoninterestIncome	16946000	USD
	us-gaap	Noninterest Income NoninterestIncome	52021000	USD
	us-gaap	Noninterest Income NoninterestIncome	46640000	USD
CY2021Q3	us-gaap	Noninterest Expense NoninterestExpense	55268000	USD
CY2020Q3	us-gaap	Noninterest Expense NoninterestExpense	51674000	USD
	us-gaap	Noninterest Expense NoninterestExpense	147172000	USD
	us-gaap	Noninterest Expense NoninterestExpense	141871000	USD
CY2021Q3	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	29993000	USD
CY2020Q3	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	29620000	USD
	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	114064000	USD
	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	62442000	USD
CY2021Q3	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	7049000	USD
CY2020Q3	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	6992000	USD
	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	25991000	USD
	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	14025000	USD
CY2021Q3	us-gaap	Net Income Loss NetIncomeLoss	22944000	USD
CY2020Q3	us-gaap	Net Income Loss NetIncomeLoss	22628000	USD
	us-gaap	Net Income Loss NetIncomeLoss	88073000	USD
	us-gaap	Net Income Loss NetIncomeLoss	48417000	USD
CY2021Q3	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.40
CY2020Q3	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.42
	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	1.56
	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.91
CY2021Q3	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.40
CY2020Q3	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.42
	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	1.57
	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.91
CY2021Q3	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	57645000	shares
CY2020Q3	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	54301000	shares
	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	56441000	shares
	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	53325000	shares
CY2021Q3	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	57148000	shares
CY2020Q3	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	53978000	shares
	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	55954000	shares
	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	52926000	shares
CY2021Q3	us-gaap	Net Income Loss NetIncomeLoss	22944000	USD
CY2020Q3	us-gaap	Net Income Loss NetIncomeLoss	22628000	USD
	us-gaap	Net Income Loss NetIncomeLoss	88073000	USD
	us-gaap	Net Income Loss NetIncomeLoss	48417000	USD
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	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodTax	-4300000	USD
CY2020Q3	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodTax	400000	USD
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CY2020Q3	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax	1890000	USD
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CY2020Q3	us-gaap	Other Comprehensive Income Availableforsale Securities Adjustment Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeAvailableforsaleSecuritiesAdjustmentNetOfTaxPortionAttributableToParent	1929000	USD
	us-gaap	Other Comprehensive Income Availableforsale Securities Adjustment Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeAvailableforsaleSecuritiesAdjustmentNetOfTaxPortionAttributableToParent	-14858000	USD
	us-gaap	Other Comprehensive Income Availableforsale Securities Adjustment Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeAvailableforsaleSecuritiesAdjustmentNetOfTaxPortionAttributableToParent	14758000	USD
CY2021Q3	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss After Reclassification Tax Parent OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationTaxParent	-32000	USD
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CY2021Q3	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss After Reclassification And Tax Parent OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationAndTaxParent	-94000	USD
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CY2021Q3	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	-4532000	USD
CY2020Q3	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	1929000	USD
	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	-15101000	USD
	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	14758000	USD
CY2021Q3	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	18412000	USD
CY2020Q3	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	24557000	USD
	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	72972000	USD
	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	63175000	USD
CY2021Q3	us-gaap	Cash And Due From Banks CashAndDueFromBanks	199460000	USD
CY2020Q4	us-gaap	Cash And Due From Banks CashAndDueFromBanks	86630000	USD
CY2021Q3	us-gaap	Interest Bearing Deposits In Banks InterestBearingDepositsInBanks	1028235000	USD
CY2020Q4	us-gaap	Interest Bearing Deposits In Banks InterestBearingDepositsInBanks	317458000	USD
CY2021Q3	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	1227695000	USD
CY2020Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	404088000	USD
CY2021Q3	sbcf	Time Deposits With Other Banks TimeDepositsWithOtherBanks	750000	USD
CY2020Q4	sbcf	Time Deposits With Other Banks TimeDepositsWithOtherBanks	750000	USD
CY2021Q3	us-gaap	Debt Securities Available For Sale Excluding Accrued Interest DebtSecuritiesAvailableForSaleExcludingAccruedInterest	1546155000	USD
CY2020Q4	us-gaap	Debt Securities Available For Sale Excluding Accrued Interest DebtSecuritiesAvailableForSaleExcludingAccruedInterest	1398157000	USD
CY2021Q3	us-gaap	Held To Maturity Securities Fair Value HeldToMaturitySecuritiesFairValue	518500000	USD
CY2020Q4	us-gaap	Held To Maturity Securities Fair Value HeldToMaturitySecuritiesFairValue	192200000	USD
CY2021Q3	us-gaap	Held To Maturity Securities HeldToMaturitySecurities	526502000	USD
CY2020Q4	us-gaap	Held To Maturity Securities HeldToMaturitySecurities	184484000	USD
CY2021Q3	us-gaap	Investments Investments	2072657000	USD
CY2020Q4	us-gaap	Investments Investments	1582641000	USD
CY2021Q3	us-gaap	Assets Held For Sale Not Part Of Disposal Group AssetsHeldForSaleNotPartOfDisposalGroup	49597000	USD
CY2020Q4	us-gaap	Assets Held For Sale Not Part Of Disposal Group AssetsHeldForSaleNotPartOfDisposalGroup	68890000	USD
CY2021Q3	us-gaap	Financing Receivable Excluding Accrued Interest Before Allowance For Credit Loss FinancingReceivableExcludingAccruedInterestBeforeAllowanceForCreditLoss	5905884000	USD
CY2020Q4	us-gaap	Financing Receivable Excluding Accrued Interest Before Allowance For Credit Loss FinancingReceivableExcludingAccruedInterestBeforeAllowanceForCreditLoss	5735349000	USD
CY2021Q3	us-gaap	Financing Receivable Allowance For Credit Loss Excluding Accrued Interest FinancingReceivableAllowanceForCreditLossExcludingAccruedInterest	87823000	USD
CY2020Q4	us-gaap	Financing Receivable Allowance For Credit Loss Excluding Accrued Interest FinancingReceivableAllowanceForCreditLossExcludingAccruedInterest	92733000	USD
CY2021Q3	us-gaap	Financing Receivable Excluding Accrued Interest After Allowance For Credit Loss FinancingReceivableExcludingAccruedInterestAfterAllowanceForCreditLoss	5818061000	USD
CY2020Q4	us-gaap	Financing Receivable Excluding Accrued Interest After Allowance For Credit Loss FinancingReceivableExcludingAccruedInterestAfterAllowanceForCreditLoss	5642616000	USD
CY2021Q3	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	71250000	USD
CY2020Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	75117000	USD
CY2021Q3	us-gaap	Other Real Estate OtherRealEstate	13628000	USD
CY2020Q4	us-gaap	Other Real Estate OtherRealEstate	12750000	USD
CY2021Q3	us-gaap	Goodwill Goodwill	252154000	USD
CY2020Q4	us-gaap	Goodwill Goodwill	221176000	USD
CY2021Q3	us-gaap	Intangible Assets Net Excluding Goodwill IntangibleAssetsNetExcludingGoodwill	16153000	USD
CY2020Q4	us-gaap	Intangible Assets Net Excluding Goodwill IntangibleAssetsNetExcludingGoodwill	16745000	USD
CY2021Q3	us-gaap	Bank Owned Life Insurance BankOwnedLifeInsurance	193747000	USD
CY2020Q4	us-gaap	Bank Owned Life Insurance BankOwnedLifeInsurance	131776000	USD
CY2021Q3	us-gaap	Deferred Income Tax Assets Net DeferredIncomeTaxAssetsNet	24187000	USD
CY2020Q4	us-gaap	Deferred Income Tax Assets Net DeferredIncomeTaxAssetsNet	23629000	USD
CY2021Q3	us-gaap	Other Assets Noncurrent OtherAssetsNoncurrent	153619000	USD
CY2020Q4	us-gaap	Other Assets Noncurrent OtherAssetsNoncurrent	162214000	USD
CY2021Q3	us-gaap	Assets Assets	9893498000	USD
CY2020Q4	us-gaap	Assets Assets	8342392000	USD
CY2021Q3	us-gaap	Deposits Deposits	8334172000	USD
CY2020Q4	us-gaap	Deposits Deposits	6932561000	USD
CY2021Q3	us-gaap	Securities Sold Under Agreements To Repurchase SecuritiesSoldUnderAgreementsToRepurchase	105548000	USD
CY2020Q4	us-gaap	Securities Sold Under Agreements To Repurchase SecuritiesSoldUnderAgreementsToRepurchase	119609000	USD
CY2021Q3	us-gaap	Subordinated Debt SubordinatedDebt	71576000	USD
CY2020Q4	us-gaap	Subordinated Debt SubordinatedDebt	71365000	USD
CY2021Q3	us-gaap	Other Liabilities Noncurrent OtherLiabilitiesNoncurrent	91682000	USD
CY2020Q4	us-gaap	Other Liabilities Noncurrent OtherLiabilitiesNoncurrent	88455000	USD
CY2021Q3	us-gaap	Liabilities Liabilities	8602978000	USD
CY2020Q4	us-gaap	Liabilities Liabilities	7211990000	USD
CY2020Q4	us-gaap	Common Stock Par Or Stated Value Per Share CommonStockParOrStatedValuePerShare	0.10
CY2021Q3	us-gaap	Common Stock Par Or Stated Value Per Share CommonStockParOrStatedValuePerShare	0.10
CY2021Q3	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	120000000	shares
CY2021Q3	us-gaap	Common Stock Shares Issued CommonStockSharesIssued	58742223	shares
CY2021Q3	us-gaap	Common Stock Shares Outstanding CommonStockSharesOutstanding	58349137	shares
CY2020Q4	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	120000000	shares
CY2020Q4	us-gaap	Common Stock Shares Issued CommonStockSharesIssued	55584979	shares
CY2020Q4	us-gaap	Common Stock Shares Outstanding CommonStockSharesOutstanding	55243226	shares
CY2021Q3	us-gaap	Common Stock Value CommonStockValue	5835000	USD
CY2020Q4	us-gaap	Common Stock Value CommonStockValue	5524000	USD
CY2021Q3	sbcf	Other Shareholders Equity OtherShareholdersEquity	1284685000	USD
CY2020Q4	sbcf	Other Shareholders Equity OtherShareholdersEquity	1124878000	USD
CY2021Q3	us-gaap	Stockholders Equity StockholdersEquity	1290520000	USD
CY2020Q4	us-gaap	Stockholders Equity StockholdersEquity	1130402000	USD
CY2021Q3	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	9893498000	USD
CY2020Q4	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	8342392000	USD
	us-gaap	Net Income Loss NetIncomeLoss	88073000	USD
	us-gaap	Net Income Loss NetIncomeLoss	48417000	USD
	us-gaap	Depreciation Depreciation	4139000	USD
	us-gaap	Depreciation Depreciation	4531000	USD
	us-gaap	Accretion Amortization Of Discounts And Premiums Investments AccretionAmortizationOfDiscountsAndPremiumsInvestments	-5353000	USD
	us-gaap	Accretion Amortization Of Discounts And Premiums Investments AccretionAmortizationOfDiscountsAndPremiumsInvestments	-2890000	USD
	sbcf	Operating Lease Right Of Use Asset Amortization OperatingLeaseRightOfUseAssetAmortization	3263000	USD
	sbcf	Operating Lease Right Of Use Asset Amortization OperatingLeaseRightOfUseAssetAmortization	3274000	USD
	sbcf	Other Accretion Amortization Net OtherAccretionAmortizationNet	11715000	USD
	sbcf	Other Accretion Amortization Net OtherAccretionAmortizationNet	4402000	USD
	us-gaap	Share Based Compensation ShareBasedCompensation	7492000	USD
	us-gaap	Share Based Compensation ShareBasedCompensation	5471000	USD
	us-gaap	Payments For Origination Of Mortgage Loans Held For Sale PaymentsForOriginationOfMortgageLoansHeldForSale	406392000	USD
	us-gaap	Payments For Origination Of Mortgage Loans Held For Sale PaymentsForOriginationOfMortgageLoansHeldForSale	378069000	USD
	sbcf	Sale Of Loans Designated Held For Sale SaleOfLoansDesignatedHeldForSale	438422000	USD
	sbcf	Sale Of Loans Designated Held For Sale SaleOfLoansDesignatedHeldForSale	335882000	USD
	sbcf	Financing Receivable And Accrued Interest Receivable Credit Loss Provision Reversal FinancingReceivableAndAccruedInterestReceivableCreditLossProvisionReversal	-5479000	USD
	sbcf	Financing Receivable And Accrued Interest Receivable Credit Loss Provision Reversal FinancingReceivableAndAccruedInterestReceivableCreditLossProvisionReversal	36279000	USD
	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	3325000	USD
	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	-6257000	USD
	us-gaap	Marketable Securities Realized Gain Loss Excluding Other Than Temporary Impairments MarketableSecuritiesRealizedGainLossExcludingOtherThanTemporaryImpairments	-73000	USD
	us-gaap	Marketable Securities Realized Gain Loss Excluding Other Than Temporary Impairments MarketableSecuritiesRealizedGainLossExcludingOtherThanTemporaryImpairments	1102000	USD
	us-gaap	Gain Loss On Sales Of Consumer Loans GainLossOnSalesOfConsumerLoans	12450000	USD
	us-gaap	Gain Loss On Sales Of Consumer Loans GainLossOnSalesOfConsumerLoans	10585000	USD
	us-gaap	Gains Losses On Sales Of Other Real Estate GainsLossesOnSalesOfOtherRealEstate	380000	USD
	us-gaap	Gains Losses On Sales Of Other Real Estate GainsLossesOnSalesOfOtherRealEstate	278000	USD
	us-gaap	Gain Loss On Disposition Of Assets1 GainLossOnDispositionOfAssets1	-684000	USD
	us-gaap	Gain Loss On Disposition Of Assets1 GainLossOnDispositionOfAssets1	-790000	USD
	us-gaap	Increase Decrease In Other Operating Assets IncreaseDecreaseInOtherOperatingAssets	-4899000	USD
	us-gaap	Increase Decrease In Other Operating Assets IncreaseDecreaseInOtherOperatingAssets	27735000	USD
	us-gaap	Increase Decrease In Other Operating Liabilities IncreaseDecreaseInOtherOperatingLiabilities	-14543000	USD
	us-gaap	Increase Decrease In Other Operating Liabilities IncreaseDecreaseInOtherOperatingLiabilities	9174000	USD
	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	104764000	USD
	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	18280000	USD
	us-gaap	Proceeds From Maturities Prepayments And Calls Of Available For Sale Securities ProceedsFromMaturitiesPrepaymentsAndCallsOfAvailableForSaleSecurities	417189000	USD
	us-gaap	Proceeds From Maturities Prepayments And Calls Of Available For Sale Securities ProceedsFromMaturitiesPrepaymentsAndCallsOfAvailableForSaleSecurities	211798000	USD
	us-gaap	Proceeds From Maturities Prepayments And Calls Of Held To Maturity Securities ProceedsFromMaturitiesPrepaymentsAndCallsOfHeldToMaturitySecurities	103254000	USD
	us-gaap	Proceeds From Maturities Prepayments And Calls Of Held To Maturity Securities ProceedsFromMaturitiesPrepaymentsAndCallsOfHeldToMaturitySecurities	53409000	USD
	us-gaap	Proceeds From Sale Of Available For Sale Securities Debt ProceedsFromSaleOfAvailableForSaleSecuritiesDebt	57209000	USD
	us-gaap	Proceeds From Sale Of Available For Sale Securities Debt ProceedsFromSaleOfAvailableForSaleSecuritiesDebt	96733000	USD
	us-gaap	Payments To Acquire Available For Sale Securities Debt PaymentsToAcquireAvailableForSaleSecuritiesDebt	848122000	USD
	us-gaap	Payments To Acquire Available For Sale Securities Debt PaymentsToAcquireAvailableForSaleSecuritiesDebt	626731000	USD
	us-gaap	Payments To Acquire Held To Maturity Securities PaymentsToAcquireHeldToMaturitySecurities	235077000	USD
	us-gaap	Payments To Acquire Held To Maturity Securities PaymentsToAcquireHeldToMaturitySecurities	0	USD
	sbcf	Proceeds From Sale And Maturity Of Time Deposits Held With Other Banks ProceedsFromSaleAndMaturityOfTimeDepositsHeldWithOtherBanks	0	USD
	sbcf	Proceeds From Sale And Maturity Of Time Deposits Held With Other Banks ProceedsFromSaleAndMaturityOfTimeDepositsHeldWithOtherBanks	1495000	USD
	sbcf	Payments For Proceeds From New Loans And Principal Repayments Investing Activities PaymentsForProceedsFromNewLoansAndPrincipalRepaymentsInvestingActivities	-559920000	USD
	sbcf	Payments For Proceeds From New Loans And Principal Repayments Investing Activities PaymentsForProceedsFromNewLoansAndPrincipalRepaymentsInvestingActivities	204282000	USD
	us-gaap	Payments To Acquire Loans Held For Investment PaymentsToAcquireLoansHeldForInvestment	236699000	USD
	us-gaap	Payments To Acquire Loans Held For Investment PaymentsToAcquireLoansHeldForInvestment	0	USD
	us-gaap	Proceeds From Sale Of Foreclosed Assets ProceedsFromSaleOfForeclosedAssets	4954000	USD
	us-gaap	Proceeds From Sale Of Foreclosed Assets ProceedsFromSaleOfForeclosedAssets	6174000	USD
	us-gaap	Payments To Acquire Other Real Estate PaymentsToAcquireOtherRealEstate	2134000	USD
	us-gaap	Payments To Acquire Other Real Estate PaymentsToAcquireOtherRealEstate	2004000	USD
	us-gaap	Proceeds From Sale Of Federal Reserve Stock ProceedsFromSaleOfFederalReserveStock	3945000	USD
	us-gaap	Proceeds From Sale Of Federal Reserve Stock ProceedsFromSaleOfFederalReserveStock	37697000	USD
	us-gaap	Payments To Acquire Federal Reserve Stock PaymentsToAcquireFederalReserveStock	59000	USD
	us-gaap	Payments To Acquire Federal Reserve Stock PaymentsToAcquireFederalReserveStock	26976000	USD
	us-gaap	Proceeds From Sale And Maturity Of Marketable Securities ProceedsFromSaleAndMaturityOfMarketableSecurities	98100000	USD
	us-gaap	Proceeds From Sale And Maturity Of Marketable Securities ProceedsFromSaleAndMaturityOfMarketableSecurities	71965000	USD
	us-gaap	Payments To Acquire Life Insurance Policies PaymentsToAcquireLifeInsurancePolicies	50000000	USD
	us-gaap	Payments To Acquire Life Insurance Policies PaymentsToAcquireLifeInsurancePolicies	0	USD
	sbcf	Additions To Bank Premises And Equipment AdditionsToBankPremisesAndEquipment	1697000	USD
	sbcf	Additions To Bank Premises And Equipment AdditionsToBankPremisesAndEquipment	1373000	USD
	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-129217000	USD
	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-382095000	USD
	us-gaap	Increase Decrease In Deposits IncreaseDecreaseInDeposits	906690000	USD
	us-gaap	Increase Decrease In Deposits IncreaseDecreaseInDeposits	826686000	USD
	us-gaap	Increase Decrease In Federal Funds Purchased And Securities Sold Under Agreements To Repurchase Net IncreaseDecreaseInFederalFundsPurchasedAndSecuritiesSoldUnderAgreementsToRepurchaseNet	-14061000	USD
	us-gaap	Increase Decrease In Federal Funds Purchased And Securities Sold Under Agreements To Repurchase Net IncreaseDecreaseInFederalFundsPurchasedAndSecuritiesSoldUnderAgreementsToRepurchaseNet	3387000	USD
	us-gaap	Increase Decrease In Loans From Other Federal Home Loan Banks IncreaseDecreaseInLoansFromOtherFederalHomeLoanBanks	0	USD
	us-gaap	Increase Decrease In Loans From Other Federal Home Loan Banks IncreaseDecreaseInLoansFromOtherFederalHomeLoanBanks	-235000000	USD
	sbcf	Repayments Of Loans Federal Home Loan Banks Maturities Greater Than Three Months RepaymentsOfLoansFederalHomeLoanBanksMaturitiesGreaterThanThreeMonths	33000000	USD
	sbcf	Repayments Of Loans Federal Home Loan Banks Maturities Greater Than Three Months RepaymentsOfLoansFederalHomeLoanBanksMaturitiesGreaterThanThreeMonths	80000000	USD
	sbcf	Proceeds From Loans Federal Home Loan Banks Maturities Greater Than Three Months ProceedsFromLoansFederalHomeLoanBanksMaturitiesGreaterThanThreeMonths	0	USD
	sbcf	Proceeds From Loans Federal Home Loan Banks Maturities Greater Than Three Months ProceedsFromLoansFederalHomeLoanBanksMaturitiesGreaterThanThreeMonths	35000000	USD
	us-gaap	Proceeds From Stock Plans ProceedsFromStockPlans	3287000	USD
	us-gaap	Proceeds From Stock Plans ProceedsFromStockPlans	-1221000	USD
	us-gaap	Payments Of Dividends Preferred Stock And Preference Stock PaymentsOfDividendsPreferredStockAndPreferenceStock	14856000	USD
	us-gaap	Payments Of Dividends Preferred Stock And Preference Stock PaymentsOfDividendsPreferredStockAndPreferenceStock	0	USD
	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	848060000	USD
	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	548852000	USD
	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	823607000	USD
	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	185037000	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
CY2021Q3	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	1227695000	USD
CY2020Q3	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	309568000	USD
	us-gaap	Interest Paid Net InterestPaidNet	8334000	USD
	us-gaap	Interest Paid Net InterestPaidNet	19834000	USD
	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	28200000	USD
	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	21712000	USD
	sbcf	Operating Lease Right Of Use Assets Initial Recognition OperatingLeaseRightOfUseAssetsInitialRecognition	35000	USD
	sbcf	Operating Lease Right Of Use Assets Initial Recognition OperatingLeaseRightOfUseAssetsInitialRecognition	1887000	USD
	sbcf	Operating Lease Liability Initial Recognition OperatingLeaseLiabilityInitialRecognition	35000	USD
	sbcf	Operating Lease Liability Initial Recognition OperatingLeaseLiabilityInitialRecognition	1887000	USD
	sbcf	Transfer Of Debt Securities From Held To Maturity To Available For Sale TransferOfDebtSecuritiesFromHeldToMaturityToAvailableForSale	210805000	USD
	sbcf	Transfer Of Debt Securities From Held To Maturity To Available For Sale TransferOfDebtSecuritiesFromHeldToMaturityToAvailableForSale	0	USD
	us-gaap	Noncash Or Part Noncash Acquisition Investments Acquired1 NoncashOrPartNoncashAcquisitionInvestmentsAcquired1	8064000	USD
	us-gaap	Noncash Or Part Noncash Acquisition Investments Acquired1 NoncashOrPartNoncashAcquisitionInvestmentsAcquired1	0	USD
	sbcf	Transfer From Loans To Other Real Estate Owned TransferFromLoansToOtherRealEstateOwned	0	USD
	sbcf	Transfer From Loans To Other Real Estate Owned TransferFromLoansToOtherRealEstateOwned	5552000	USD
	sbcf	Transfer From Bank Premises To Other Real Estate Owned TransferFromBankPremisesToOtherRealEstateOwned	3318000	USD
	sbcf	Transfer From Bank Premises To Other Real Estate Owned TransferFromBankPremisesToOtherRealEstateOwned	1289000	USD
CY2021Q2	us-gaap	Stockholders Equity StockholdersEquity	1182347000	USD
CY2021Q3	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	18412000	USD
CY2021Q3	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	2358000	USD
CY2021Q3	us-gaap	Stock Issued During Period Value Employee Benefit Plan StockIssuedDuringPeriodValueEmployeeBenefitPlan	17000	USD
CY2021Q3	us-gaap	Stock Issued During Period Value Stock Options Exercised StockIssuedDuringPeriodValueStockOptionsExercised	2902000	USD
CY2021Q3	sbcf	Stock Issued During Period Value Acquisitions Net Of Related Expense StockIssuedDuringPeriodValueAcquisitionsNetOfRelatedExpense	86487000	USD
CY2021Q3	us-gaap	Stock Issued During Period Value Conversion Of Convertible Securities StockIssuedDuringPeriodValueConversionOfConvertibleSecurities	5607000	USD
CY2021Q3	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.13
CY2021Q3	us-gaap	Dividends Common Stock DividendsCommonStock	7610000	USD
CY2021Q3	us-gaap	Stockholders Equity Period Increase Decrease StockholdersEquityPeriodIncreaseDecrease	108173000	USD
CY2021Q3	us-gaap	Stockholders Equity StockholdersEquity	1290520000	USD
CY2020Q2	us-gaap	Stockholders Equity StockholdersEquity	1030603000	USD
CY2020Q3	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	24557000	USD
CY2020Q3	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	1948000	USD
CY2020Q3	us-gaap	Stock Issued During Period Value Employee Benefit Plan StockIssuedDuringPeriodValueEmployeeBenefitPlan	96000	USD
CY2020Q3	us-gaap	Stock Issued During Period Value Stock Options Exercised StockIssuedDuringPeriodValueStockOptionsExercised	16000	USD
CY2020Q3	sbcf	Stock Issued During Period Value Acquisitions Net Of Related Expense StockIssuedDuringPeriodValueAcquisitionsNetOfRelatedExpense	41121000	USD
CY2020Q3	us-gaap	Stockholders Equity Period Increase Decrease StockholdersEquityPeriodIncreaseDecrease	67738000	USD
CY2020Q3	us-gaap	Stockholders Equity StockholdersEquity	1098341000	USD
CY2020Q4	us-gaap	Stockholders Equity StockholdersEquity	1130402000	USD
	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	72972000	USD
	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	6620000	USD
	sbcf	Stock Issued During Period Value Employee Benefit Plans StockIssuedDuringPeriodValueEmployeeBenefitPlans	1884000	USD
	us-gaap	Stock Issued During Period Value Stock Options Exercised StockIssuedDuringPeriodValueStockOptionsExercised	5172000	USD
	sbcf	Stock Issued During Period Value Acquisitions Net Of Related Expense StockIssuedDuringPeriodValueAcquisitionsNetOfRelatedExpense	86487000	USD
	us-gaap	Stock Issued During Period Value Conversion Of Convertible Securities StockIssuedDuringPeriodValueConversionOfConvertibleSecurities	5607000	USD
	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.13
	us-gaap	Dividends Common Stock DividendsCommonStock	14856000	USD
	us-gaap	Stockholders Equity Period Increase Decrease StockholdersEquityPeriodIncreaseDecrease	160118000	USD
CY2021Q3	us-gaap	Stockholders Equity StockholdersEquity	1290520000	USD
CY2021Q3	us-gaap	Stockholders Equity StockholdersEquity	1290520000	USD
CY2019Q4	us-gaap	Stockholders Equity StockholdersEquity	985639000	USD
	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	63175000	USD
	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	5471000	USD
	sbcf	Stock Issued During Period Value Employee Benefit Plans StockIssuedDuringPeriodValueEmployeeBenefitPlans	1918000	USD
	us-gaap	Stock Issued During Period Value Stock Options Exercised StockIssuedDuringPeriodValueStockOptionsExercised	698000	USD
	sbcf	Stock Issued During Period Value Acquisitions Net Of Related Expense StockIssuedDuringPeriodValueAcquisitionsNetOfRelatedExpense	62152000	USD
	us-gaap	Stockholders Equity Period Increase Decrease StockholdersEquityPeriodIncreaseDecrease	112702000	USD
CY2020Q3	us-gaap	Stockholders Equity StockholdersEquity	1098341000	USD
	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 these condensed 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>
CY2021Q3	us-gaap	Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	0	shares
	us-gaap	Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	0	shares
CY2020Q3	us-gaap	Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	508000	shares
	us-gaap	Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	508000	shares
CY2021Q3	us-gaap	Net Income Loss NetIncomeLoss	22944000	USD
CY2020Q3	us-gaap	Net Income Loss NetIncomeLoss	22628000	USD
	us-gaap	Net Income Loss NetIncomeLoss	88073000	USD
	us-gaap	Net Income Loss NetIncomeLoss	48417000	USD
CY2021Q3	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	57148000	shares
CY2020Q3	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	53978000	shares
	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	55954000	shares
	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	52926000	shares
CY2021Q3	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.40
CY2020Q3	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.42
	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	1.57
	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.91
CY2021Q3	us-gaap	Net Income Loss NetIncomeLoss	22944000	USD
CY2020Q3	us-gaap	Net Income Loss NetIncomeLoss	22628000	USD
	us-gaap	Net Income Loss NetIncomeLoss	88073000	USD
	us-gaap	Net Income Loss NetIncomeLoss	48417000	USD
CY2021Q3	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	57148000	shares
CY2020Q3	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	53978000	shares
	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	55954000	shares
	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	52926000	shares
CY2021Q3	us-gaap	Incremental Common Shares Attributable To Share Based Payment Arrangements IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	497000	shares
CY2020Q3	us-gaap	Incremental Common Shares Attributable To Share Based Payment Arrangements IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	323000	shares
	us-gaap	Incremental Common Shares Attributable To Share Based Payment Arrangements IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	487000	shares
	us-gaap	Incremental Common Shares Attributable To Share Based Payment Arrangements IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	399000	shares
CY2021Q3	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	57645000	shares
CY2020Q3	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	54301000	shares
	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	56441000	shares
	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	53325000	shares
CY2021Q3	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.40
CY2020Q3	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.42
	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	1.56
	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.91
CY2021Q3	us-gaap	Debt Securities Available For Sale Amortized Cost Excluding Accrued Interest After Allowance For Credit Loss DebtSecuritiesAvailableForSaleAmortizedCostExcludingAccruedInterestAfterAllowanceForCreditLoss	1539560000	USD
CY2021Q3	us-gaap	Available For Sale Debt Securities Accumulated Gross Unrealized Gain Before Tax AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax	16445000	USD
CY2021Q3	us-gaap	Available For Sale Debt Securities Accumulated Gross Unrealized Loss Before Tax AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax	9850000	USD
CY2021Q3	us-gaap	Debt Securities Available For Sale Excluding Accrued Interest DebtSecuritiesAvailableForSaleExcludingAccruedInterest	1546155000	USD
CY2021Q3	us-gaap	Debt Securities Held To Maturity Excluding Accrued Interest After Allowance For Credit Loss DebtSecuritiesHeldToMaturityExcludingAccruedInterestAfterAllowanceForCreditLoss	526502000	USD
CY2021Q3	us-gaap	Held To Maturity Securities Accumulated Unrecognized Holding Gain HeldToMaturitySecuritiesAccumulatedUnrecognizedHoldingGain	4702000	USD
CY2021Q3	us-gaap	Held To Maturity Securities Accumulated Unrecognized Holding Loss HeldToMaturitySecuritiesAccumulatedUnrecognizedHoldingLoss	12740000	USD
CY2021Q3	us-gaap	Held To Maturity Securities Fair Value HeldToMaturitySecuritiesFairValue	518464000	USD
CY2020Q4	us-gaap	Debt Securities Available For Sale Amortized Cost Excluding Accrued Interest After Allowance For Credit Loss DebtSecuritiesAvailableForSaleAmortizedCostExcludingAccruedInterestAfterAllowanceForCreditLoss	1371539000	USD
CY2020Q4	us-gaap	Available For Sale Debt Securities Accumulated Gross Unrealized Gain Before Tax AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax	28716000	USD
CY2020Q4	us-gaap	Available For Sale Debt Securities Accumulated Gross Unrealized Loss Before Tax AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax	2098000	USD
	us-gaap	Proceeds From Sale Of Available For Sale Securities Debt ProceedsFromSaleOfAvailableForSaleSecuritiesDebt	96700000	USD
CY2020Q4	us-gaap	Debt Securities Available For Sale Excluding Accrued Interest DebtSecuritiesAvailableForSaleExcludingAccruedInterest	1398157000	USD
CY2020Q4	us-gaap	Debt Securities Held To Maturity Excluding Accrued Interest After Allowance For Credit Loss DebtSecuritiesHeldToMaturityExcludingAccruedInterestAfterAllowanceForCreditLoss	184484000	USD
CY2020Q4	us-gaap	Held To Maturity Securities Accumulated Unrecognized Holding Gain HeldToMaturitySecuritiesAccumulatedUnrecognizedHoldingGain	7818000	USD
CY2020Q4	us-gaap	Held To Maturity Securities Accumulated Unrecognized Holding Loss HeldToMaturitySecuritiesAccumulatedUnrecognizedHoldingLoss	123000	USD
CY2020Q4	us-gaap	Held To Maturity Securities Fair Value HeldToMaturitySecuritiesFairValue	192179000	USD
CY2021Q3	us-gaap	Proceeds From Sale Of Available For Sale Securities Debt ProceedsFromSaleOfAvailableForSaleSecuritiesDebt	1000000	USD
CY2021Q3	us-gaap	Debt Securities Available For Sale Realized Gain DebtSecuritiesAvailableForSaleRealizedGain	0	USD
CY2021Q3	us-gaap	Debt Securities Available For Sale Realized Loss DebtSecuritiesAvailableForSaleRealizedLoss	0	USD
	us-gaap	Proceeds From Sale Of Available For Sale Securities Debt ProceedsFromSaleOfAvailableForSaleSecuritiesDebt	57200000	USD
	us-gaap	Debt Securities Available For Sale Realized Gain DebtSecuritiesAvailableForSaleRealizedGain	200000	USD
	us-gaap	Debt Securities Available For Sale Realized Loss DebtSecuritiesAvailableForSaleRealizedLoss	300000	USD
CY2020Q3	us-gaap	Proceeds From Sale Of Available For Sale Securities Debt ProceedsFromSaleOfAvailableForSaleSecuritiesDebt	4400000	USD
CY2020Q3	us-gaap	Debt Securities Available For Sale Realized Gain DebtSecuritiesAvailableForSaleRealizedGain	4000	USD
CY2020Q3	us-gaap	Debt Securities Available For Sale Realized Loss DebtSecuritiesAvailableForSaleRealizedLoss	0	USD
	us-gaap	Debt Securities Available For Sale Realized Gain DebtSecuritiesAvailableForSaleRealizedGain	2400000	USD
	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
CY2021Q3	us-gaap	Held To Maturity Securities HeldToMaturitySecurities	526502000	USD
CY2021Q3	us-gaap	Held To Maturity Securities Fair Value HeldToMaturitySecuritiesFairValue	518464000	USD
CY2021Q3	us-gaap	Debt Securities Available For Sale Amortized Cost Excluding Accrued Interest After Allowance For Credit Loss DebtSecuritiesAvailableForSaleAmortizedCostExcludingAccruedInterestAfterAllowanceForCreditLoss	1539560000	USD
CY2021Q3	us-gaap	Debt Securities Available For Sale Excluding Accrued Interest DebtSecuritiesAvailableForSaleExcludingAccruedInterest	1546155000	USD
CY2021Q3	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position Less Than12 Months DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12Months	742721000	USD
CY2021Q3	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position Less Than12 Months Accumulated Loss DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12MonthsAccumulatedLoss	9017000	USD
CY2021Q3	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position12 Months Or Longer DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLonger	27767000	USD
CY2021Q3	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position12 Months Or Longer Accumulated Loss DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLongerAccumulatedLoss	833000	USD
CY2021Q3	us-gaap	Debt Securities Available For Sale Unrealized Loss Position DebtSecuritiesAvailableForSaleUnrealizedLossPosition	770488000	USD
CY2021Q3	us-gaap	Debt Securities Available For Sale Unrealized Loss Position Accumulated Loss DebtSecuritiesAvailableForSaleUnrealizedLossPositionAccumulatedLoss	9850000	USD
CY2020Q4	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position Less Than12 Months DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12Months	332099000	USD
CY2020Q4	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position Less Than12 Months Accumulated Loss DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12MonthsAccumulatedLoss	1530000	USD
CY2020Q4	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position12 Months Or Longer DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLonger	73338000	USD
CY2020Q4	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position12 Months Or Longer Accumulated Loss DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLongerAccumulatedLoss	568000	USD
CY2021Q3	us-gaap	Financing Receivable Excluding Accrued Interest Before Allowance For Credit Loss FinancingReceivableExcludingAccruedInterestBeforeAllowanceForCreditLoss	5905884000	USD
CY2020Q4	us-gaap	Debt Securities Available For Sale Unrealized Loss Position DebtSecuritiesAvailableForSaleUnrealizedLossPosition	405437000	USD
CY2020Q4	us-gaap	Debt Securities Available For Sale Unrealized Loss Position Accumulated Loss DebtSecuritiesAvailableForSaleUnrealizedLossPositionAccumulatedLoss	2098000	USD
CY2021Q3	us-gaap	Debt Securities Held To Maturity Allowance For Credit Loss Excluding Accrued Interest DebtSecuritiesHeldToMaturityAllowanceForCreditLossExcludingAccruedInterest	0	USD
CY2021Q3	us-gaap	Federal Home Loan Bank Stock And Federal Reserve Bank Stock FederalHomeLoanBankStockAndFederalReserveBankStock	31500000	USD
CY2021Q3	sbcf	Debt Securities Available For Sale Interest Receivable DebtSecuritiesAvailableForSaleInterestReceivable	3700000	USD
CY2021Q3	sbcf	Debt Securities Held To Maturity Interest Receivable DebtSecuritiesHeldToMaturityInterestReceivable	800000	USD
CY2020Q4	sbcf	Debt Securities Available For Sale Interest Receivable DebtSecuritiesAvailableForSaleInterestReceivable	3200000	USD
CY2020Q4	sbcf	Debt Securities Held To Maturity Interest Receivable DebtSecuritiesHeldToMaturityInterestReceivable	400000	USD
CY2021Q3	us-gaap	Financing Receivable Excluding Accrued Interest Before Allowance For Credit Loss FinancingReceivableExcludingAccruedInterestBeforeAllowanceForCreditLoss	5905884000	USD
CY2020Q4	us-gaap	Financing Receivable Excluding Accrued Interest Before Allowance For Credit Loss FinancingReceivableExcludingAccruedInterestBeforeAllowanceForCreditLoss	5735349000	USD
CY2021Q3	us-gaap	Deferred Costs Current And Noncurrent DeferredCostsCurrentAndNoncurrent	32100000	USD
CY2020Q4	us-gaap	Deferred Costs Current And Noncurrent DeferredCostsCurrentAndNoncurrent	22600000	USD
CY2021Q3	us-gaap	Financing Receivable Accrued Interest Before Allowance For Credit Loss FinancingReceivableAccruedInterestBeforeAllowanceForCreditLoss	15200000	USD
CY2020Q4	us-gaap	Financing Receivable Accrued Interest Before Allowance For Credit Loss FinancingReceivableAccruedInterestBeforeAllowanceForCreditLoss	25800000	USD
CY2021Q3	us-gaap	Financing Receivable Recorded Investment Nonaccrual Status FinancingReceivableRecordedInvestmentNonaccrualStatus	32612000	USD
CY2020Q4	us-gaap	Financing Receivable Recorded Investment Nonaccrual Status FinancingReceivableRecordedInvestmentNonaccrualStatus	36110000	USD
CY2020Q4	us-gaap	Financing Receivable Excluding Accrued Interest Before Allowance For Credit Loss FinancingReceivableExcludingAccruedInterestBeforeAllowanceForCreditLoss	5735349000	USD
CY2021Q3	sbcf	Financing Receivable Nonaccrual No Related Allowance Interest Income FinancingReceivableNonaccrualNoRelatedAllowanceInterestIncome	300000	USD
CY2020Q3	sbcf	Financing Receivable Nonaccrual No Related Allowance Interest Income FinancingReceivableNonaccrualNoRelatedAllowanceInterestIncome	100000	USD
	sbcf	Financing Receivable Nonaccrual No Related Allowance Interest Income FinancingReceivableNonaccrualNoRelatedAllowanceInterestIncome	900000	USD
	sbcf	Financing Receivable Nonaccrual No Related Allowance Interest Income FinancingReceivableNonaccrualNoRelatedAllowanceInterestIncome	500000	USD
CY2021Q3	us-gaap	Financing Receivable Nonaccrual No Allowance FinancingReceivableNonaccrualNoAllowance	25090000	USD
CY2021Q3	sbcf	Financing Receivable Nonaccrual With Allowance For Credit Losses FinancingReceivableNonaccrualWithAllowanceForCreditLosses	7522000	USD
CY2021Q3	us-gaap	Financing Receivable Recorded Investment Nonaccrual Status FinancingReceivableRecordedInvestmentNonaccrualStatus	32612000	USD
CY2021Q3	sbcf	Financing Receivable Nonaccrual Related Allowance FinancingReceivableNonaccrualRelatedAllowance	4082000	USD
CY2020Q4	us-gaap	Financing Receivable Nonaccrual No Allowance FinancingReceivableNonaccrualNoAllowance	26624000	USD
CY2020Q4	sbcf	Financing Receivable Nonaccrual With Allowance For Credit Losses FinancingReceivableNonaccrualWithAllowanceForCreditLosses	9486000	USD
CY2020Q4	us-gaap	Financing Receivable Recorded Investment Nonaccrual Status FinancingReceivableRecordedInvestmentNonaccrualStatus	36110000	USD
CY2020Q4	sbcf	Financing Receivable Nonaccrual Related Allowance FinancingReceivableNonaccrualRelatedAllowance	5832000	USD
CY2021Q3	sbcf	Financing Receivable Collateral Dependent Loans FinancingReceivableCollateralDependentLoans	35297000	USD
CY2020Q4	sbcf	Financing Receivable Collateral Dependent Loans FinancingReceivableCollateralDependentLoans	47902000	USD
CY2021Q3	us-gaap	Financing Receivable Excluding Accrued Interest Year One Originated Current Fiscal Year FinancingReceivableExcludingAccruedInterestYearOneOriginatedCurrentFiscalYear	1275835000	USD
CY2021Q3	us-gaap	Financing Receivable Excluding Accrued Interest Year Two Originated Fiscal Year Before Current Fiscal Year FinancingReceivableExcludingAccruedInterestYearTwoOriginatedFiscalYearBeforeCurrentFiscalYear	778019000	USD
CY2021Q3	us-gaap	Financing Receivable Excluding Accrued Interest Year Three Originated Two Years Before Current Fiscal Year FinancingReceivableExcludingAccruedInterestYearThreeOriginatedTwoYearsBeforeCurrentFiscalYear	803819000	USD
CY2021Q3	us-gaap	Financing Receivable Excluding Accrued Interest Year Four Originated Three Years Before Current Fiscal Year FinancingReceivableExcludingAccruedInterestYearFourOriginatedThreeYearsBeforeCurrentFiscalYear	643537000	USD
CY2021Q3	us-gaap	Financing Receivable Excluding Accrued Interest Year Five Originated Four Years Before Current Fiscal Year FinancingReceivableExcludingAccruedInterestYearFiveOriginatedFourYearsBeforeCurrentFiscalYear	468530000	USD
CY2021Q3	us-gaap	Financing Receivable Excluding Accrued Interest Originated More Than Five Years Before Current Fiscal Year FinancingReceivableExcludingAccruedInterestOriginatedMoreThanFiveYearsBeforeCurrentFiscalYear	1299928000	USD
CY2021Q3	us-gaap	Financing Receivable Revolving FinancingReceivableRevolving	636216000	USD
CY2021Q3	us-gaap	Financing Receivable Excluding Accrued Interest Before Allowance For Credit Loss FinancingReceivableExcludingAccruedInterestBeforeAllowanceForCreditLoss	5905884000	USD
CY2020Q4	us-gaap	Financing Receivable Excluding Accrued Interest Year One Originated Current Fiscal Year FinancingReceivableExcludingAccruedInterestYearOneOriginatedCurrentFiscalYear	1309434000	USD
CY2020Q4	us-gaap	Financing Receivable Excluding Accrued Interest Year Two Originated Fiscal Year Before Current Fiscal Year FinancingReceivableExcludingAccruedInterestYearTwoOriginatedFiscalYearBeforeCurrentFiscalYear	912701000	USD
CY2020Q4	us-gaap	Financing Receivable Excluding Accrued Interest Year Three Originated Two Years Before Current Fiscal Year FinancingReceivableExcludingAccruedInterestYearThreeOriginatedTwoYearsBeforeCurrentFiscalYear	779840000	USD
CY2020Q4	us-gaap	Financing Receivable Excluding Accrued Interest Year Four Originated Three Years Before Current Fiscal Year FinancingReceivableExcludingAccruedInterestYearFourOriginatedThreeYearsBeforeCurrentFiscalYear	589022000	USD
CY2020Q4	us-gaap	Financing Receivable Excluding Accrued Interest Year Five Originated Four Years Before Current Fiscal Year FinancingReceivableExcludingAccruedInterestYearFiveOriginatedFourYearsBeforeCurrentFiscalYear	582417000	USD
CY2020Q4	us-gaap	Financing Receivable Excluding Accrued Interest Originated More Than Five Years Before Current Fiscal Year FinancingReceivableExcludingAccruedInterestOriginatedMoreThanFiveYearsBeforeCurrentFiscalYear	928105000	USD
CY2020Q4	us-gaap	Financing Receivable Revolving FinancingReceivableRevolving	633830000	USD
CY2020Q4	us-gaap	Financing Receivable Excluding Accrued Interest Before Allowance For Credit Loss FinancingReceivableExcludingAccruedInterestBeforeAllowanceForCreditLoss	5735349000	USD
CY2021Q3	sbcf	Financing Receivable Value Of Loans With Accommodations Not Classified As Troubled Debt Restructuring FinancingReceivableValueOfLoansWithAccommodationsNotClassifiedAsTroubledDebtRestructuring	2200000	USD
CY2021Q3	sbcf	Financing Receivable Value Of Loans With Accommodations Not Classified As Troubled Debt Restructuring Percentage Of Loan Deferral FinancingReceivableValueOfLoansWithAccommodationsNotClassifiedAsTroubledDebtRestructuringPercentageOfLoanDeferral	0.0004
CY2021Q3	sbcf	Financing Receivable Value Of Loans With Accommodations Not Classified As Troubled Debt Restructuring FinancingReceivableValueOfLoansWithAccommodationsNotClassifiedAsTroubledDebtRestructuring	2154000	USD
CY2020Q4	sbcf	Financing Receivable Value Of Loans With Accommodations Not Classified As Troubled Debt Restructuring FinancingReceivableValueOfLoansWithAccommodationsNotClassifiedAsTroubledDebtRestructuring	74062000	USD
CY2021Q3	us-gaap	Financing Receivable Modifications Number Of Contracts2 FinancingReceivableModificationsNumberOfContracts2	1	contract
CY2021Q3	us-gaap	Financing Receivable Modifications Pre Modification Recorded Investment2 FinancingReceivableModificationsPreModificationRecordedInvestment2	152000	USD
CY2021Q3	us-gaap	Financing Receivable Modifications Post Modification Recorded Investment2 FinancingReceivableModificationsPostModificationRecordedInvestment2	152000	USD
CY2020Q3	us-gaap	Financing Receivable Modifications Number Of Contracts2 FinancingReceivableModificationsNumberOfContracts2	1	contract
CY2020Q3	us-gaap	Financing Receivable Modifications Pre Modification Recorded Investment2 FinancingReceivableModificationsPreModificationRecordedInvestment2	41000	USD
CY2020Q3	us-gaap	Financing Receivable Modifications Post Modification Recorded Investment2 FinancingReceivableModificationsPostModificationRecordedInvestment2	41000	USD
	us-gaap	Financing Receivable Modifications Number Of Contracts2 FinancingReceivableModificationsNumberOfContracts2	5	contract
	us-gaap	Financing Receivable Modifications Pre Modification Recorded Investment2 FinancingReceivableModificationsPreModificationRecordedInvestment2	373000	USD
	sbcf	Financing Receivable Troubled Debt Restructuring Modifications Number Of Contracts FinancingReceivableTroubledDebtRestructuringModificationsNumberOfContracts	4	contract
	us-gaap	Financing Receivable Modifications Subsequent Default Recorded Investment1 FinancingReceivableModificationsSubsequentDefaultRecordedInvestment1	1400000	USD
CY2021Q3	us-gaap	Financing Receivable Change In Present Value Interest Income FinancingReceivableChangeInPresentValueInterestIncome	9000	USD
CY2020Q3	us-gaap	Financing Receivable Change In Present Value Interest Income FinancingReceivableChangeInPresentValueInterestIncome	19000	USD
	us-gaap	Financing Receivable Modifications Post Modification Recorded Investment2 FinancingReceivableModificationsPostModificationRecordedInvestment2	373000	USD
	us-gaap	Financing Receivable Modifications Number Of Contracts2 FinancingReceivableModificationsNumberOfContracts2	8	contract
	us-gaap	Financing Receivable Modifications Pre Modification Recorded Investment2 FinancingReceivableModificationsPreModificationRecordedInvestment2	570000	USD
	us-gaap	Financing Receivable Modifications Post Modification Recorded Investment2 FinancingReceivableModificationsPostModificationRecordedInvestment2	570000	USD
CY2020Q3	sbcf	Financing Receivable Troubled Debt Restructuring Allowance For Credit Loss FinancingReceivableTroubledDebtRestructuringAllowanceForCreditLoss	200000	USD
CY2021Q3	sbcf	Financing Receivable Troubled Debt Restructuring Allowance For Credit Loss FinancingReceivableTroubledDebtRestructuringAllowanceForCreditLoss	200000	USD
	sbcf	Financing Receivable Troubled Debt Restructuring Modifications Number Of Contracts FinancingReceivableTroubledDebtRestructuringModificationsNumberOfContracts	2	contract
	us-gaap	Financing Receivable Modifications Subsequent Default Recorded Investment1 FinancingReceivableModificationsSubsequentDefaultRecordedInvestment1	100000	USD
	us-gaap	Financing Receivable Change In Present Value Interest Income FinancingReceivableChangeInPresentValueInterestIncome	20000	USD
	us-gaap	Financing Receivable Change In Present Value Interest Income FinancingReceivableChangeInPresentValueInterestIncome	65000	USD
CY2021Q2	us-gaap	Financing Receivable Allowance For Credit Loss Excluding Accrued Interest FinancingReceivableAllowanceForCreditLossExcludingAccruedInterest	81127000	USD
CY2021Q3	us-gaap	Financing Receivable Allowance For Credit Loss Purchased With Credit Deterioration Increase FinancingReceivableAllowanceForCreditLossPurchasedWithCreditDeteriorationIncrease	3046000	USD
CY2021Q3	us-gaap	Provision For Loan Losses Expensed ProvisionForLoanLossesExpensed	5091000	USD
CY2021Q3	us-gaap	Financing Receivable Allowance For Credit Losses Write Offs FinancingReceivableAllowanceForCreditLossesWriteOffs	2052000	USD
CY2021Q3	us-gaap	Financing Receivable Allowance For Credit Losses Recovery FinancingReceivableAllowanceForCreditLossesRecovery	620000	USD
CY2021Q3	sbcf	Financing Receivable Allowance For Credit Loss Troubled Debt Restructuring Adjustments FinancingReceivableAllowanceForCreditLossTroubledDebtRestructuringAdjustments	9000	USD
CY2021Q3	us-gaap	Financing Receivable Allowance For Credit Loss Excluding Accrued Interest FinancingReceivableAllowanceForCreditLossExcludingAccruedInterest	87823000	USD
CY2020Q2	us-gaap	Financing Receivable Allowance For Credit Loss Excluding Accrued Interest FinancingReceivableAllowanceForCreditLossExcludingAccruedInterest	91250000	USD
CY2020Q3	us-gaap	Financing Receivable Allowance For Credit Loss Purchased With Credit Deterioration Increase FinancingReceivableAllowanceForCreditLossPurchasedWithCreditDeteriorationIncrease	5763000	USD
CY2020Q3	us-gaap	Provision For Loan Losses Expensed ProvisionForLoanLossesExpensed	-1245000	USD
CY2020Q3	us-gaap	Financing Receivable Allowance For Credit Losses Write Offs FinancingReceivableAllowanceForCreditLossesWriteOffs	2175000	USD
CY2020Q3	us-gaap	Financing Receivable Allowance For Credit Losses Recovery FinancingReceivableAllowanceForCreditLossesRecovery	439000	USD
CY2020Q3	sbcf	Financing Receivable Allowance For Credit Loss Troubled Debt Restructuring Adjustments FinancingReceivableAllowanceForCreditLossTroubledDebtRestructuringAdjustments	19000	USD
CY2020Q3	us-gaap	Financing Receivable Allowance For Credit Loss Excluding Accrued Interest FinancingReceivableAllowanceForCreditLossExcludingAccruedInterest	94013000	USD
CY2020Q4	us-gaap	Financing Receivable Allowance For Credit Loss Excluding Accrued Interest FinancingReceivableAllowanceForCreditLossExcludingAccruedInterest	92733000	USD
	us-gaap	Financing Receivable Allowance For Credit Loss Purchased With Credit Deterioration Increase FinancingReceivableAllowanceForCreditLossPurchasedWithCreditDeteriorationIncrease	3046000	USD
	us-gaap	Provision For Loan Losses Expensed ProvisionForLoanLossesExpensed	-5479000	USD
	us-gaap	Financing Receivable Allowance For Credit Losses Write Offs FinancingReceivableAllowanceForCreditLossesWriteOffs	4777000	USD
	us-gaap	Financing Receivable Allowance For Credit Losses Recovery FinancingReceivableAllowanceForCreditLossesRecovery	2320000	USD
	sbcf	Financing Receivable Allowance For Credit Loss Troubled Debt Restructuring Adjustments FinancingReceivableAllowanceForCreditLossTroubledDebtRestructuringAdjustments	20000	USD
CY2021Q3	us-gaap	Financing Receivable Allowance For Credit Loss Excluding Accrued Interest FinancingReceivableAllowanceForCreditLossExcludingAccruedInterest	87823000	USD
CY2019Q4	us-gaap	Financing Receivable Allowance For Credit Loss Excluding Accrued Interest FinancingReceivableAllowanceForCreditLossExcludingAccruedInterest	35154000	USD
	us-gaap	Financing Receivable Allowance For Credit Loss Purchased With Credit Deterioration Increase FinancingReceivableAllowanceForCreditLossPurchasedWithCreditDeteriorationIncrease	6279000	USD
	us-gaap	Provision For Loan Losses Expensed ProvisionForLoanLossesExpensed	35879000	USD
	us-gaap	Financing Receivable Allowance For Credit Losses Write Offs FinancingReceivableAllowanceForCreditLossesWriteOffs	6316000	USD
	us-gaap	Financing Receivable Allowance For Credit Losses Recovery FinancingReceivableAllowanceForCreditLossesRecovery	1856000	USD
	sbcf	Financing Receivable Allowance For Credit Loss Troubled Debt Restructuring Adjustments FinancingReceivableAllowanceForCreditLossTroubledDebtRestructuringAdjustments	65000	USD
CY2020Q3	us-gaap	Financing Receivable Allowance For Credit Loss Excluding Accrued Interest FinancingReceivableAllowanceForCreditLossExcludingAccruedInterest	94013000	USD
CY2021Q3	us-gaap	Financing Receivable Individually Evaluated For Impairment FinancingReceivableIndividuallyEvaluatedForImpairment	45837000	USD
CY2021Q3	us-gaap	Financing Receivable Allowance For Credit Losses Individually Evaluated For Impairment1 FinancingReceivableAllowanceForCreditLossesIndividuallyEvaluatedForImpairment1	4946000	USD
CY2021Q3	us-gaap	Financing Receivable Collectively Evaluated For Impairment FinancingReceivableCollectivelyEvaluatedForImpairment	5860047000	USD
CY2021Q3	us-gaap	Financing Receivable Allowance For Credit Losses Collectively Evaluated For Impairment FinancingReceivableAllowanceForCreditLossesCollectivelyEvaluatedForImpairment	82877000	USD
CY2021Q3	us-gaap	Financing Receivable Excluding Accrued Interest Before Allowance For Credit Loss FinancingReceivableExcludingAccruedInterestBeforeAllowanceForCreditLoss	5905884000	USD
CY2021Q3	us-gaap	Financing Receivable Allowance For Credit Loss Excluding Accrued Interest FinancingReceivableAllowanceForCreditLossExcludingAccruedInterest	87823000	USD
CY2020Q4	us-gaap	Financing Receivable Individually Evaluated For Impairment FinancingReceivableIndividuallyEvaluatedForImpairment	49196000	USD
CY2020Q4	us-gaap	Financing Receivable Allowance For Credit Losses Individually Evaluated For Impairment1 FinancingReceivableAllowanceForCreditLossesIndividuallyEvaluatedForImpairment1	7708000	USD
CY2020Q4	us-gaap	Financing Receivable Collectively Evaluated For Impairment FinancingReceivableCollectivelyEvaluatedForImpairment	5686153000	USD
CY2020Q4	us-gaap	Financing Receivable Allowance For Credit Losses Collectively Evaluated For Impairment FinancingReceivableAllowanceForCreditLossesCollectivelyEvaluatedForImpairment	85025000	USD
CY2020Q4	us-gaap	Financing Receivable Excluding Accrued Interest Before Allowance For Credit Loss FinancingReceivableExcludingAccruedInterestBeforeAllowanceForCreditLoss	5735349000	USD
CY2020Q4	us-gaap	Financing Receivable Allowance For Credit Loss Excluding Accrued Interest FinancingReceivableAllowanceForCreditLossExcludingAccruedInterest	92733000	USD
CY2021Q3	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss Before Reclassification And Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossBeforeReclassificationAndTax	-200000	USD
	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss Before Reclassification And Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossBeforeReclassificationAndTax	-500000	USD
CY2021Q3	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss Reclassification Before Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationBeforeTax	-100000	USD
	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss Reclassification Before Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationBeforeTax	-200000	USD
CY2021Q3	sbcf	Interchange Income InterchangeIncome	4131000	USD
CY2020Q3	sbcf	Interchange Income InterchangeIncome	3682000	USD
	sbcf	Interchange Income InterchangeIncome	12096000	USD
	sbcf	Interchange Income InterchangeIncome	10115000	USD
CY2021Q3	sbcf	Marine Finance Revenues MarineFinanceRevenues	152000	USD
CY2020Q3	sbcf	Marine Finance Revenues MarineFinanceRevenues	242000	USD
	sbcf	Marine Finance Revenues MarineFinanceRevenues	518000	USD
	sbcf	Marine Finance Revenues MarineFinanceRevenues	545000	USD
CY2021Q3	sbcf	Small Business Administration Gains SmallBusinessAdministrationGains	812000	USD
CY2020Q3	sbcf	Small Business Administration Gains SmallBusinessAdministrationGains	252000	USD
	sbcf	Small Business Administration Gains SmallBusinessAdministrationGains	1331000	USD
	sbcf	Small Business Administration Gains SmallBusinessAdministrationGains	572000	USD
CY2021Q3	us-gaap	Bank Owned Life Insurance Income BankOwnedLifeInsuranceIncome	1128000	USD
CY2020Q3	us-gaap	Bank Owned Life Insurance Income BankOwnedLifeInsuranceIncome	899000	USD
	us-gaap	Bank Owned Life Insurance Income BankOwnedLifeInsuranceIncome	2859000	USD
	us-gaap	Bank Owned Life Insurance Income BankOwnedLifeInsuranceIncome	2672000	USD
CY2021Q3	sbcf	Noninterest Income Others NoninterestIncomeOthers	5228000	USD
CY2020Q3	sbcf	Noninterest Income Others NoninterestIncomeOthers	2370000	USD
	sbcf	Noninterest Income Others NoninterestIncomeOthers	11221000	USD
	sbcf	Noninterest Income Others NoninterestIncomeOthers	7869000	USD
CY2021Q3	sbcf	Non Interest Income Excluding Gain Loss On Loans Sale And Investments NonInterestIncomeExcludingGainLossOnLoansSaleAndInvestments	19058000	USD
CY2020Q3	sbcf	Non Interest Income Excluding Gain Loss On Loans Sale And Investments NonInterestIncomeExcludingGainLossOnLoansSaleAndInvestments	16942000	USD
	sbcf	Non Interest Income Excluding Gain Loss On Loans Sale And Investments NonInterestIncomeExcludingGainLossOnLoansSaleAndInvestments	52220000	USD
	sbcf	Non Interest Income Excluding Gain Loss On Loans Sale And Investments NonInterestIncomeExcludingGainLossOnLoansSaleAndInvestments	45387000	USD
CY2021Q3	us-gaap	Gain Loss On Investments GainLossOnInvestments	-30000	USD
CY2020Q3	us-gaap	Gain Loss On Investments GainLossOnInvestments	4000	USD
	us-gaap	Gain Loss On Investments GainLossOnInvestments	-199000	USD
	us-gaap	Gain Loss On Investments GainLossOnInvestments	1253000	USD
CY2021Q3	us-gaap	Noninterest Income NoninterestIncome	19028000	USD
CY2020Q3	us-gaap	Noninterest Income NoninterestIncome	16946000	USD
	us-gaap	Noninterest Income NoninterestIncome	52021000	USD
	us-gaap	Noninterest Income NoninterestIncome	46640000	USD
CY2021Q3	us-gaap	Salaries And Wages SalariesAndWages	27919000	USD
CY2020Q3	us-gaap	Salaries And Wages SalariesAndWages	23125000	USD
	us-gaap	Salaries And Wages SalariesAndWages	72278000	USD
	us-gaap	Salaries And Wages SalariesAndWages	67049000	USD
CY2021Q3	us-gaap	Other Labor Related Expenses OtherLaborRelatedExpenses	4177000	USD
CY2020Q3	us-gaap	Other Labor Related Expenses OtherLaborRelatedExpenses	3995000	USD
	us-gaap	Other Labor Related Expenses OtherLaborRelatedExpenses	13110000	USD
	us-gaap	Other Labor Related Expenses OtherLaborRelatedExpenses	11629000	USD
CY2021Q3	us-gaap	Information Technology And Data Processing InformationTechnologyAndDataProcessing	5610000	USD
CY2020Q3	us-gaap	Information Technology And Data Processing InformationTechnologyAndDataProcessing	6128000	USD
	us-gaap	Information Technology And Data Processing InformationTechnologyAndDataProcessing	14754000	USD
	us-gaap	Information Technology And Data Processing InformationTechnologyAndDataProcessing	14820000	USD
CY2021Q3	us-gaap	Communication Communication	810000	USD
CY2020Q3	us-gaap	Communication Communication	705000	USD
	us-gaap	Communication Communication	2433000	USD
	us-gaap	Communication Communication	2210000	USD
CY2021Q3	us-gaap	Occupancy Net OccupancyNet	3541000	USD
CY2020Q3	us-gaap	Occupancy Net OccupancyNet	3858000	USD
	us-gaap	Occupancy Net OccupancyNet	10640000	USD
	us-gaap	Occupancy Net OccupancyNet	10596000	USD
CY2021Q3	sbcf	Furniture And Equipment Expense FurnitureAndEquipmentExpense	1567000	USD
CY2020Q3	sbcf	Furniture And Equipment Expense FurnitureAndEquipmentExpense	1576000	USD
	sbcf	Furniture And Equipment Expense FurnitureAndEquipmentExpense	3987000	USD
	sbcf	Furniture And Equipment Expense FurnitureAndEquipmentExpense	4557000	USD
CY2021Q3	us-gaap	Marketing Expense MarketingExpense	1353000	USD
CY2020Q3	us-gaap	Marketing Expense MarketingExpense	1513000	USD
	us-gaap	Marketing Expense MarketingExpense	3523000	USD
CY2021Q3	us-gaap	Professional Fees ProfessionalFees	4151000	USD
	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	4436000	USD
	us-gaap	Marketing Expense MarketingExpense	3788000	USD
CY2020Q3	us-gaap	Professional Fees ProfessionalFees	3018000	USD
	us-gaap	Professional Fees ProfessionalFees	8915000	USD
	us-gaap	Professional Fees ProfessionalFees	8658000	USD
CY2021Q3	sbcf	Federal Deposit Insurance Corporation Assessment FederalDepositInsuranceCorporationAssessment	651000	USD
CY2020Q3	sbcf	Federal Deposit Insurance Corporation Assessment FederalDepositInsuranceCorporationAssessment	474000	USD
	sbcf	Federal Deposit Insurance Corporation Assessment FederalDepositInsuranceCorporationAssessment	1692000	USD
	sbcf	Federal Deposit Insurance Corporation Assessment FederalDepositInsuranceCorporationAssessment	740000	USD
CY2021Q3	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	1306000	USD
CY2020Q3	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	1497000	USD
	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	3729000	USD
CY2021Q3	sbcf	Gains Losses On Foreclosed Properties In Other Real Estate GainsLossesOnForeclosedPropertiesInOtherRealEstate	-66000	USD
CY2020Q3	sbcf	Gains Losses On Foreclosed Properties In Other Real Estate GainsLossesOnForeclosedPropertiesInOtherRealEstate	-512000	USD
	sbcf	Gains Losses On Foreclosed Properties In Other Real Estate GainsLossesOnForeclosedPropertiesInOtherRealEstate	89000	USD
	sbcf	Gains Losses On Foreclosed Properties In Other Real Estate GainsLossesOnForeclosedPropertiesInOtherRealEstate	-442000	USD
CY2021Q3	us-gaap	Off Balance Sheet Credit Loss Liability Credit Loss Expense Reversal OffBalanceSheetCreditLossLiabilityCreditLossExpenseReversal	133000	USD
CY2020Q3	us-gaap	Off Balance Sheet Credit Loss Liability Credit Loss Expense Reversal OffBalanceSheetCreditLossLiabilityCreditLossExpenseReversal	756000	USD
	us-gaap	Off Balance Sheet Credit Loss Liability Credit Loss Expense Reversal OffBalanceSheetCreditLossLiabilityCreditLossExpenseReversal	133000	USD
	us-gaap	Off Balance Sheet Credit Loss Liability Credit Loss Expense Reversal OffBalanceSheetCreditLossLiabilityCreditLossExpenseReversal	980000	USD
CY2021Q3	us-gaap	Other Noninterest Expense OtherNoninterestExpense	3984000	USD
CY2020Q3	us-gaap	Other Noninterest Expense OtherNoninterestExpense	4517000	USD
	us-gaap	Other Noninterest Expense OtherNoninterestExpense	12067000	USD
	us-gaap	Other Noninterest Expense OtherNoninterestExpense	11966000	USD
CY2021Q3	us-gaap	Noninterest Expense NoninterestExpense	55268000	USD
CY2020Q3	us-gaap	Noninterest Expense NoninterestExpense	51674000	USD
	us-gaap	Noninterest Expense NoninterestExpense	147172000	USD
	us-gaap	Noninterest Expense NoninterestExpense	141871000	USD
CY2021Q3	us-gaap	Tier One Risk Based Capital Required To Be Well Capitalized To Risk Weighted Assets TierOneRiskBasedCapitalRequiredToBeWellCapitalizedToRiskWeightedAssets	0.065
	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Transfers Net FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetTransfersNet	700000	USD
CY2021Q3	us-gaap	Loans Held For Sale Fair Value Disclosure LoansHeldForSaleFairValueDisclosure	49597000	USD
CY2020Q4	us-gaap	Loans Held For Sale Fair Value Disclosure LoansHeldForSaleFairValueDisclosure	68890000	USD
CY2021Q3	sbcf	Loans Held For Sale Fair Value Disclosure Fair Value Amount In Excess Of Contractual Balance LoansHeldForSaleFairValueDisclosureFairValueAmountInExcessOfContractualBalance	1425000	USD
CY2020Q4	sbcf	Loans Held For Sale Fair Value Disclosure Fair Value Amount In Excess Of Contractual Balance LoansHeldForSaleFairValueDisclosureFairValueAmountInExcessOfContractualBalance	2475000	USD
CY2021Q3	sbcf	Capitalization Rates Utilized To Determine Fair Value Of Underlying Collateral Averaged Percentage CapitalizationRatesUtilizedToDetermineFairValueOfUnderlyingCollateralAveragedPercentage	0.070
	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Purchases FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetPurchases	5400000	USD
	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Settlements FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetSettlements	2600000	USD

Files In Submission

Name	View Source	Status
0000730708-21-000074-index-headers.html	Edgar Link	pending
0000730708-21-000074-index.html	Edgar Link	pending
0000730708-21-000074.txt	Edgar Link	pending
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MetaLinks.json	Edgar Link	pending
R1.htm	Edgar Link	pending
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R9999.htm	Edgar Link	pending
report.css	Edgar Link	pending
sbcf-20210930.htm	Edgar Link	pending
sbcf-20210930.xsd	Edgar Link	pending
sbcf-20210930_cal.xml	Edgar Link	unprocessable
sbcf-20210930_def.xml	Edgar Link	unprocessable
sbcf-20210930_htm.xml	Edgar Link	completed
sbcf-20210930_lab.xml	Edgar Link	unprocessable
sbcf-20210930_pre.xml	Edgar Link	unprocessable
sbcf3q20210930ex311.htm	Edgar Link	pending
sbcf3q20210930ex312.htm	Edgar Link	pending
sbcf3q20210930ex321.htm	Edgar Link	pending
sbcf3q20210930ex322.htm	Edgar Link	pending
Show.js	Edgar Link	pending

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$SBCF
Seacoast Banking Corporation of Florida Stock $sbcf

2021 Q3 Form 10-Q Financial Statement

#000073070821000074 Filed on November 03, 2021

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

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$SBCF Seacoast Banking Corporation of Florida Stock $sbcf

2021 Q3 Form 10-Q Financial Statement

#000073070821000074 Filed on November 03, 2021

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$SBCF
Seacoast Banking Corporation of Florida Stock $sbcf