$FBK
FB Financial Corp Stock $fbk

$fbk Overview Financials Valuation SEC Filings Company Website

2022 Q1 Form 10-Q Financial Statement

#000164974922000095 Filed on May 10, 2022

Income Statement

Concept	2022 Q1	2021 Q1
Revenue	$95.13M	$94.79M
YoY Change	0.36%	36.04%
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	$2.036M	$2.056M
YoY Change	-0.97%	27.54%
% of Gross Profit
Operating Expenses
YoY Change
Operating Profit
YoY Change
Interest Expense	$6.945M	$12.21M
YoY Change	-43.12%	-9.06%
% of Operating Profit
Other Income/Expense, Net
YoY Change
Pretax Income	$44.55M	$68.46M
YoY Change	-34.93%	8198.42%
Income Tax	$9.313M	$15.59M
% Of Pretax Income	20.91%	22.77%
Net Earnings	$35.24M	$52.87M
YoY Change	-33.36%	6997.18%
Net Earnings / Revenue	37.04%	55.78%
Basic Earnings Per Share	$0.74	$1.12
Diluted Earnings Per Share	$0.74	$1.10
COMMON SHARES
Basic Shares Outstanding	47.53M shares	47.28M shares
Diluted Shares Outstanding	47.72M shares	47.97M shares

Balance Sheet

Concept	2022 Q1	2021 Q1
SHORT-TERM ASSETS
Cash & Short-Term Investments
YoY Change
Cash & Equivalents	$1.743B	$1.895B
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	$183.6M	$192.0M
YoY Change	-4.38%	91.22%
Goodwill	$242.6M	$242.6M
YoY Change	0.0%	38.72%
Intangibles
YoY Change
Long-Term Investments	$3.213M	$5.000M
YoY Change	-35.74%	66.67%
Other Assets
YoY Change
Total Long-Term Assets
YoY Change
TOTAL ASSETS
Total Short-Term Assets
Total Long-Term Assets
Total Assets	$12.67B	$11.94B
YoY Change	6.19%	79.33%
SHORT-TERM LIABILITIES
YoY Change
Accounts Payable
YoY Change
Accrued Expenses	$142.3M	$170.0M
YoY Change	-16.29%	0.59%
Deferred Revenue
YoY Change
Short-Term Debt		$29.00M
YoY Change
Long-Term Debt Due
YoY Change
Total Short-Term Liabilities	$142.3M	$170.0M
YoY Change	-16.29%	0.59%
LONG-TERM LIABILITIES
Long-Term Debt	$155.7M	$151.0M
YoY Change	3.13%	-53.96%
Other Long-Term Liabilities
YoY Change
Total Long-Term Liabilities	$155.7M	$151.0M
YoY Change	3.13%	-53.96%
TOTAL LIABILITIES
Total Short-Term Liabilities	$142.3M	$170.0M
Total Long-Term Liabilities	$155.7M	$151.0M
Total Liabilities	$11.29B	$10.61B
YoY Change	6.48%	80.59%
SHAREHOLDERS EQUITY
Retained Earnings	$515.7M	$365.2M
YoY Change	41.2%	24.42%
Common Stock	$935.7M	$947.9M
YoY Change	-1.29%	92.26%
Preferred Stock
YoY Change
Treasury Stock (at cost)
YoY Change
Treasury Stock Shares
Shareholders Equity	$1.380B	$1.329B
YoY Change
Total Liabilities & Shareholders Equity	$12.67B	$11.94B
YoY Change	6.19%	79.33%

Cashflow Statement

Concept	2022 Q1	2021 Q1
OPERATING ACTIVITIES
Net Income	$35.24M	$52.87M
YoY Change	-33.36%	6997.18%
Depreciation, Depletion And Amortization	$2.036M	$2.056M
YoY Change	-0.97%	27.54%
Cash From Operating Activities	$288.1M	-$172.2M
YoY Change	-267.35%	69.31%
INVESTING ACTIVITIES
Capital Expenditures	$601.0K	$2.050M
YoY Change	-70.68%	-31.98%
Acquisitions		$0.00
YoY Change		-100.0%
Other Investing Activities	-$477.2M	$16.90M
YoY Change	-2923.39%	-64.72%
Cash From Investing Activities	-$477.8M	$14.84M
YoY Change	-3318.93%	-66.96%
FINANCING ACTIVITIES
Cash Dividend Paid	$6.265M	$5.269M
YoY Change	18.9%	85.66%
Common Stock Issuance & Retirement, Net	$5.516M	-$833.0K
YoY Change	-762.18%	-286.77%
Debt Paid & Issued, Net
YoY Change
Cash From Financing Activities	$135.2M	$734.6M
YoY Change	-81.6%	194.79%
NET CHANGE
Cash From Operating Activities	$288.1M	-$172.2M
Cash From Investing Activities	-$477.8M	$14.84M
Cash From Financing Activities	$135.2M	$734.6M
Net Change In Cash	-$54.43M	$577.2M
YoY Change	-109.43%	200.0%
FREE CASH FLOW
Cash From Operating Activities	$288.1M	-$172.2M
Capital Expenditures	$601.0K	$2.050M
Free Cash Flow	$287.5M	-$174.2M
YoY Change	-265.04%	66.39%

Facts In Submission

Frame	Concept Type	Concept / XBRL Key	Value	Unit
CY2022Q1	dei	Amendment Flag AmendmentFlag	false
CY2022Q1	dei	Document Fiscal Year Focus DocumentFiscalYearFocus	2022
CY2022Q1	dei	Document Fiscal Period Focus DocumentFiscalPeriodFocus	Q1
CY2022Q1	dei	Entity Central Index Key EntityCentralIndexKey	0001649749
CY2022Q1	dei	Current Fiscal Year End Date CurrentFiscalYearEndDate	--12-31
CY2022Q1	us-gaap	Finance Lease Right Of Use Asset Statement Of Financial Position Extensible List FinanceLeaseRightOfUseAssetStatementOfFinancialPositionExtensibleList	http://fasb.org/us-gaap/2021-01-31#PropertyPlantAndEquipmentAndFinanceLeaseRightOfUseAssetAfterAccumulatedDepreciationAndAmortization
CY2021Q4	us-gaap	Finance Lease Right Of Use Asset Statement Of Financial Position Extensible List FinanceLeaseRightOfUseAssetStatementOfFinancialPositionExtensibleList	http://fasb.org/us-gaap/2021-01-31#PropertyPlantAndEquipmentAndFinanceLeaseRightOfUseAssetAfterAccumulatedDepreciationAndAmortization
CY2022Q1	us-gaap	Finance Lease Liability Statement Of Financial Position Extensible List FinanceLeaseLiabilityStatementOfFinancialPositionExtensibleList	http://fasb.org/us-gaap/2021-01-31#DebtLongtermAndShorttermCombinedAmount
CY2021Q4	us-gaap	Finance Lease Liability Statement Of Financial Position Extensible List FinanceLeaseLiabilityStatementOfFinancialPositionExtensibleList	http://fasb.org/us-gaap/2021-01-31#DebtLongtermAndShorttermCombinedAmount
CY2022Q1	dei	Document Type DocumentType	10-Q
CY2022Q1	dei	Document Quarterly Report DocumentQuarterlyReport	true
CY2022Q1	dei	Document Period End Date DocumentPeriodEndDate	2022-03-31
CY2022Q1	dei	Document Transition Report DocumentTransitionReport	false
CY2022Q1	dei	Entity File Number EntityFileNumber	001-37875
CY2022Q1	dei	Entity Registrant Name EntityRegistrantName	FB FINANCIAL CORPORATION
CY2022Q1	dei	Entity Incorporation State Country Code EntityIncorporationStateCountryCode	TN
CY2022Q1	dei	Entity Incorporation State Country Code EntityIncorporationStateCountryCode	TN
CY2022Q1	dei	Entity Tax Identification Number EntityTaxIdentificationNumber	62-1216058
CY2022Q1	dei	Entity Tax Identification Number EntityTaxIdentificationNumber	62-1216058
CY2022Q1	dei	Entity Shell Company EntityShellCompany	false
CY2022Q1	dei	Entity Address Address Line1 EntityAddressAddressLine1	211 Commerce Street
CY2022Q1	dei	Entity Address Address Line2 EntityAddressAddressLine2	Suite 300
CY2022Q1	dei	Entity Address City Or Town EntityAddressCityOrTown	Nashville
CY2022Q1	dei	Entity Address State Or Province EntityAddressStateOrProvince	TN
CY2022Q1	dei	Entity Address Postal Zip Code EntityAddressPostalZipCode	37201
CY2022Q1	dei	Entity Address Postal Zip Code EntityAddressPostalZipCode	37201
CY2022Q1	dei	City Area Code CityAreaCode	615
CY2022Q1	dei	Local Phone Number LocalPhoneNumber	564-1212
CY2022Q1	dei	Security12b Title Security12bTitle	Common Stock, Par Value $1.00 Per Share
CY2022Q1	dei	Trading Symbol TradingSymbol	FBK
CY2022Q1	dei	Security Exchange Name SecurityExchangeName	NYSE
CY2022Q1	dei	Entity Current Reporting Status EntityCurrentReportingStatus	Yes
CY2022Q1	dei	Entity Interactive Data Current EntityInteractiveDataCurrent	Yes
CY2022Q1	dei	Entity Filer Category EntityFilerCategory	Large Accelerated Filer
CY2022Q1	dei	Entity Small Business EntitySmallBusiness	false
CY2022Q1	dei	Entity Emerging Growth Company EntityEmergingGrowthCompany	false
CY2022Q2	dei	Entity Common Stock Shares Outstanding EntityCommonStockSharesOutstanding	47234776	shares
CY2022Q1	us-gaap	Cash And Due From Banks CashAndDueFromBanks	61637000	USD
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CY2022Q1	us-gaap	Loans Receivable Held For Sale Net Not Part Of Disposal Group LoansReceivableHeldForSaleNetNotPartOfDisposalGroup	396728000	USD
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CY2022Q1	us-gaap	Financing Receivable Allowance For Credit Loss Excluding Accrued Interest FinancingReceivableAllowanceForCreditLossExcludingAccruedInterest	120049000	USD
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CY2022Q1	us-gaap	Other Real Estate And Foreclosed Assets OtherRealEstateAndForeclosedAssets	9721000	USD
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CY2022Q1	us-gaap	Interest Receivable InterestReceivable	39069000	USD
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CY2022Q1	us-gaap	Servicing Asset At Amortized Value ServicingAssetAtAmortizedValue	144675000	USD
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CY2022Q1	us-gaap	Finite Lived Intangible Assets Net FiniteLivedIntangibleAssetsNet	15709000	USD
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CY2022Q1	us-gaap	Bank Owned Life Insurance BankOwnedLifeInsurance	74232000	USD
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CY2022Q1	us-gaap	Profit Loss ProfitLoss	35236000	USD
CY2021Q1	us-gaap	Profit Loss ProfitLoss	52874000	USD
CY2022Q1	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	0	USD
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CY2021Q1	us-gaap	Net Income Loss NetIncomeLoss	52874000	USD
CY2022Q1	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.74
CY2021Q1	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	1.12
CY2022Q1	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.74
CY2021Q1	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	1.10
CY2022Q1	us-gaap	Profit Loss ProfitLoss	35236000	USD
CY2021Q1	us-gaap	Profit Loss ProfitLoss	52874000	USD
CY2022Q1	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodTax	-27483000	USD
CY2021Q1	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodTax	-3452000	USD
CY2022Q1	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax	-78175000	USD
CY2021Q1	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax	-11848000	USD
CY2022Q1	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesTax	1000	USD
CY2021Q1	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesTax	2000	USD
CY2022Q1	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesNetOfTax	1000	USD
CY2021Q1	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesNetOfTax	5000	USD
CY2022Q1	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss Before Reclassification Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossBeforeReclassificationTax	273000	USD
CY2021Q1	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss Before Reclassification Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossBeforeReclassificationTax	112000	USD
CY2022Q1	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss Before Reclassification After Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossBeforeReclassificationAfterTax	774000	USD
CY2021Q1	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss Before Reclassification After Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossBeforeReclassificationAfterTax	316000	USD
CY2022Q1	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	-77402000	USD
CY2021Q1	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	-11537000	USD
CY2022Q1	us-gaap	Comprehensive Income Net Of Tax Including Portion Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest	-42166000	USD
CY2021Q1	us-gaap	Comprehensive Income Net Of Tax Including Portion Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest	41337000	USD
CY2022Q1	us-gaap	Comprehensive Income Net Of Tax Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest	0	USD
CY2021Q1	us-gaap	Comprehensive Income Net Of Tax Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest	0	USD
CY2022Q1	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	-42166000	USD
CY2021Q1	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	41337000	USD
CY2020Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	1291382000	USD
CY2021Q1	us-gaap	Profit Loss ProfitLoss	52874000	USD
CY2021Q1	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	-11537000	USD
CY2021Q1	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	2666000	USD
CY2021Q1	us-gaap	Restricted Stock Value Shares Issued Net Of Tax Withholdings RestrictedStockValueSharesIssuedNetOfTaxWithholdings	-1715000	USD
CY2021Q1	us-gaap	Stock Issued During Period Value Employee Stock Purchase Plan StockIssuedDuringPeriodValueEmployeeStockPurchasePlan	833000	USD
CY2021Q1	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.11
CY2021Q1	us-gaap	Dividends Common Stock Cash DividendsCommonStockCash	5307000	USD
CY2021Q1	us-gaap	Minority Interest Decrease From Distributions To Noncontrolling Interest Holders MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders	0	USD
CY2021Q1	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	1329196000	USD
CY2021Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	1432695000	USD
CY2022Q1	us-gaap	Profit Loss ProfitLoss	35236000	USD
CY2022Q1	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	-77402000	USD
CY2022Q1	us-gaap	Stock Repurchased During Period Value StockRepurchasedDuringPeriodValue	6203000	USD
CY2022Q1	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	2582000	USD
CY2022Q1	us-gaap	Restricted Stock Value Shares Issued Net Of Tax Withholdings RestrictedStockValueSharesIssuedNetOfTaxWithholdings	-1488000	USD
CY2022Q1	us-gaap	Stock Issued During Period Value Employee Stock Purchase Plan StockIssuedDuringPeriodValueEmployeeStockPurchasePlan	687000	USD
CY2022Q1	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.13
CY2022Q1	us-gaap	Dividends Common Stock Cash DividendsCommonStockCash	6238000	USD
CY2022Q1	us-gaap	Minority Interest Decrease From Distributions To Noncontrolling Interest Holders MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders	0	USD
CY2022Q1	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	1379869000	USD
CY2022Q1	us-gaap	Profit Loss ProfitLoss	35236000	USD
CY2021Q1	us-gaap	Profit Loss ProfitLoss	52874000	USD
CY2022Q1	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	2036000	USD
CY2021Q1	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	2056000	USD
CY2022Q1	fbk	Amortization Of Other Intangible Assets AmortizationOfOtherIntangibleAssets	1244000	USD
CY2021Q1	fbk	Amortization Of Other Intangible Assets AmortizationOfOtherIntangibleAssets	1440000	USD
CY2022Q1	fbk	Capitalization Of Mortgage Servicing Rights Ms Rs CapitalizationOfMortgageServicingRightsMSRs	9812000	USD
CY2021Q1	fbk	Capitalization Of Mortgage Servicing Rights Ms Rs CapitalizationOfMortgageServicingRightsMSRs	11594000	USD
CY2022Q1	fbk	Change In Fair Value Of Mortgage Servicing Rights ChangeInFairValueOfMortgageServicingRights	-19351000	USD
CY2021Q1	fbk	Change In Fair Value Of Mortgage Servicing Rights ChangeInFairValueOfMortgageServicingRights	-12601000	USD
CY2022Q1	us-gaap	Share Based Compensation ShareBasedCompensation	2582000	USD
CY2021Q1	us-gaap	Share Based Compensation ShareBasedCompensation	2666000	USD
CY2022Q1	us-gaap	Provision For Loan Losses Expensed ProvisionForLoanLossesExpensed	-6129000	USD
CY2021Q1	us-gaap	Provision For Loan Losses Expensed ProvisionForLoanLossesExpensed	-11632000	USD
CY2022Q1	fbk	Unfunded Commitments Credit Loss Expense Reversal UnfundedCommitmentsCreditLossExpenseReversal	1882000	USD
CY2021Q1	fbk	Unfunded Commitments Credit Loss Expense Reversal UnfundedCommitmentsCreditLossExpenseReversal	-2222000	USD
CY2022Q1	fbk	Provision For Mortgage Loan Repurchases Or Indemnifications ProvisionForMortgageLoanRepurchasesOrIndemnifications	-389000	USD
CY2021Q1	fbk	Provision For Mortgage Loan Repurchases Or Indemnifications ProvisionForMortgageLoanRepurchasesOrIndemnifications	440000	USD
CY2022Q1	fbk	Certain Loans Acquired In Transfer Not Accounted For As Debt Securities Accretable Yield Accretion Amortization CertainLoansAcquiredInTransferNotAccountedForAsDebtSecuritiesAccretableYieldAccretionAmortization	-2352000	USD
CY2021Q1	fbk	Certain Loans Acquired In Transfer Not Accounted For As Debt Securities Accretable Yield Accretion Amortization CertainLoansAcquiredInTransferNotAccountedForAsDebtSecuritiesAccretableYieldAccretionAmortization	-58000	USD
CY2022Q1	us-gaap	Accretion Amortization Of Discounts And Premiums Investments AccretionAmortizationOfDiscountsAndPremiumsInvestments	-1992000	USD
CY2021Q1	us-gaap	Accretion Amortization Of Discounts And Premiums Investments AccretionAmortizationOfDiscountsAndPremiumsInvestments	-2150000	USD
CY2022Q1	us-gaap	Debt And Equity Securities Gain Loss DebtAndEquitySecuritiesGainLoss	-152000	USD
CY2021Q1	us-gaap	Debt And Equity Securities Gain Loss DebtAndEquitySecuritiesGainLoss	83000	USD
CY2022Q1	us-gaap	Payments For Origination Of Mortgage Loans Held For Sale PaymentsForOriginationOfMortgageLoansHeldForSale	993733000	USD
CY2021Q1	us-gaap	Payments For Origination Of Mortgage Loans Held For Sale PaymentsForOriginationOfMortgageLoansHeldForSale	1757932000	USD
CY2022Q1	us-gaap	Proceeds From Sale Of Loans Held For Sale ProceedsFromSaleOfLoansHeldForSale	1330701000	USD
CY2021Q1	us-gaap	Proceeds From Sale Of Loans Held For Sale ProceedsFromSaleOfLoansHeldForSale	1648695000	USD
CY2022Q1	us-gaap	Gain Loss On Sales Of Loans Net GainLossOnSalesOfLoansNet	21675000	USD
CY2021Q1	us-gaap	Gain Loss On Sales Of Loans Net GainLossOnSalesOfLoansNet	52811000	USD
CY2022Q1	us-gaap	Gains Losses On Sales Of Other Real Estate GainsLossesOnSalesOfOtherRealEstate	-498000	USD
CY2021Q1	us-gaap	Gains Losses On Sales Of Other Real Estate GainsLossesOnSalesOfOtherRealEstate	496000	USD
CY2022Q1	us-gaap	Gain Loss On Sale Of Other Assets GainLossOnSaleOfOtherAssets	64000	USD
CY2021Q1	us-gaap	Gain Loss On Sale Of Other Assets GainLossOnSaleOfOtherAssets	-11000	USD
CY2022Q1	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	9313000	USD
CY2021Q1	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	9639000	USD
CY2022Q1	us-gaap	Life Insurance Corporate Or Bank Owned Change In Value LifeInsuranceCorporateOrBankOwnedChangeInValue	354000	USD
CY2021Q1	us-gaap	Life Insurance Corporate Or Bank Owned Change In Value LifeInsuranceCorporateOrBankOwnedChangeInValue	402000	USD
CY2022Q1	fbk	Increase Decrease In Operating Leases IncreaseDecreaseInOperatingLeases	-190000	USD
CY2021Q1	fbk	Increase Decrease In Operating Leases IncreaseDecreaseInOperatingLeases	129000	USD
CY2022Q1	fbk	Increase Decrease In Other Assets And Interest Receivable IncreaseDecreaseInOtherAssetsAndInterestReceivable	-62043000	USD
CY2021Q1	fbk	Increase Decrease In Other Assets And Interest Receivable IncreaseDecreaseInOtherAssetsAndInterestReceivable	-907000	USD
CY2022Q1	us-gaap	Increase Decrease In Accrued Liabilities And Other Operating Liabilities IncreaseDecreaseInAccruedLiabilitiesAndOtherOperatingLiabilities	13900000	USD
CY2021Q1	us-gaap	Increase Decrease In Accrued Liabilities And Other Operating Liabilities IncreaseDecreaseInAccruedLiabilitiesAndOtherOperatingLiabilities	-41660000	USD
CY2022Q1	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	288148000	USD
CY2021Q1	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	-172182000	USD
CY2022Q1	us-gaap	Proceeds From Maturities Prepayments And Calls Of Available For Sale Securities ProceedsFromMaturitiesPrepaymentsAndCallsOfAvailableForSaleSecurities	57443000	USD
CY2021Q1	us-gaap	Proceeds From Maturities Prepayments And Calls Of Available For Sale Securities ProceedsFromMaturitiesPrepaymentsAndCallsOfAvailableForSaleSecurities	61040000	USD
CY2022Q1	us-gaap	Payments To Acquire Available For Sale Securities Debt PaymentsToAcquireAvailableForSaleSecuritiesDebt	170093000	USD
CY2021Q1	us-gaap	Payments To Acquire Available For Sale Securities Debt PaymentsToAcquireAvailableForSaleSecuritiesDebt	131268000	USD
CY2022Q1	us-gaap	Payments For Proceeds From Loans And Leases PaymentsForProceedsFromLoansAndLeases	363354000	USD
CY2021Q1	us-gaap	Payments For Proceeds From Loans And Leases PaymentsForProceedsFromLoansAndLeases	-45584000	USD
CY2022Q1	us-gaap	Proceeds From Sale And Collection Of Loans Heldforsale ProceedsFromSaleAndCollectionOfLoansHeldforsale	946000	USD
CY2021Q1	us-gaap	Proceeds From Sale And Collection Of Loans Heldforsale ProceedsFromSaleAndCollectionOfLoansHeldforsale	39566000	USD
CY2022Q1	us-gaap	Payments To Acquire Federal Home Loan Bank Stock PaymentsToAcquireFederalHomeLoanBankStock	2216000	USD
CY2021Q1	us-gaap	Payments To Acquire Federal Home Loan Bank Stock PaymentsToAcquireFederalHomeLoanBankStock	525000	USD
CY2022Q1	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	601000	USD
CY2021Q1	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	2050000	USD
CY2022Q1	us-gaap	Proceeds From Sale Of Other Real Estate ProceedsFromSaleOfOtherRealEstate	121000	USD
CY2021Q1	us-gaap	Proceeds From Sale Of Other Real Estate ProceedsFromSaleOfOtherRealEstate	2495000	USD
CY2022Q1	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-477754000	USD
CY2021Q1	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	14842000	USD
CY2022Q1	us-gaap	Increase Decrease In Demand Deposits IncreaseDecreaseInDemandDeposits	238893000	USD
CY2021Q1	us-gaap	Increase Decrease In Demand Deposits IncreaseDecreaseInDemandDeposits	855673000	USD
CY2022Q1	us-gaap	Increase Decrease In Time Deposits IncreaseDecreaseInTimeDeposits	-75765000	USD
CY2021Q1	us-gaap	Increase Decrease In Time Deposits IncreaseDecreaseInTimeDeposits	-56824000	USD
CY2022Q1	fbk	Increase Decrease In Securities Sold Under Agreements To Repurchase IncreaseDecreaseInSecuritiesSoldUnderAgreementsToRepurchase	-14779000	USD
CY2021Q1	fbk	Increase Decrease In Securities Sold Under Agreements To Repurchase IncreaseDecreaseInSecuritiesSoldUnderAgreementsToRepurchase	-2965000	USD
CY2022Q1	us-gaap	Repayments Of Subordinated Debt RepaymentsOfSubordinatedDebt	0	USD
CY2021Q1	us-gaap	Repayments Of Subordinated Debt RepaymentsOfSubordinatedDebt	40000000	USD
CY2022Q1	fbk	Accretion Of Debt Fair Value Premium And Amortization Of Debt Issuance Costs AccretionOfDebtFairValuePremiumAndAmortizationOfDebtIssuanceCosts	-97000	USD
CY2021Q1	fbk	Accretion Of Debt Fair Value Premium And Amortization Of Debt Issuance Costs AccretionOfDebtFairValuePremiumAndAmortizationOfDebtIssuanceCosts	158000	USD
CY2022Q1	fbk	Proceeds From Payments For Other Borrowings ProceedsFromPaymentsForOtherBorrowings	0	USD
CY2021Q1	fbk	Proceeds From Payments For Other Borrowings ProceedsFromPaymentsForOtherBorrowings	-15000000	USD
CY2022Q1	us-gaap	Payments Related To Tax Withholding For Share Based Compensation PaymentsRelatedToTaxWithholdingForShareBasedCompensation	1488000	USD
CY2021Q1	us-gaap	Payments Related To Tax Withholding For Share Based Compensation PaymentsRelatedToTaxWithholdingForShareBasedCompensation	1715000	USD
CY2022Q1	us-gaap	Proceeds From Issuance Of Common Stock ProceedsFromIssuanceOfCommonStock	687000	USD
CY2021Q1	us-gaap	Proceeds From Issuance Of Common Stock ProceedsFromIssuanceOfCommonStock	833000	USD
CY2022Q1	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	6203000	USD
CY2021Q1	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	0	USD
CY2022Q1	us-gaap	Payments Of Dividends PaymentsOfDividends	6265000	USD
CY2021Q1	us-gaap	Payments Of Dividends PaymentsOfDividends	5269000	USD
CY2022Q1	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	135177000	USD
CY2021Q1	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	734575000	USD
CY2022Q1	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	-54429000	USD
CY2021Q1	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	577235000	USD
CY2021Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	1797740000	USD
CY2020Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	1317898000	USD
CY2022Q1	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	1743311000	USD
CY2021Q1	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	1895133000	USD
CY2022Q1	us-gaap	Interest Paid Net InterestPaidNet	8631000	USD
CY2021Q1	us-gaap	Interest Paid Net InterestPaidNet	14794000	USD
CY2022Q1	us-gaap	Income Taxes Paid IncomeTaxesPaid	72000	USD
CY2021Q1	us-gaap	Income Taxes Paid IncomeTaxesPaid	15117000	USD
CY2022Q1	us-gaap	Transfer To Other Real Estate TransferToOtherRealEstate	563000	USD
CY2021Q1	us-gaap	Transfer To Other Real Estate TransferToOtherRealEstate	1395000	USD
CY2022Q1	us-gaap	Transfer Of Other Real Estate TransferOfOtherRealEstate	0	USD
CY2021Q1	us-gaap	Transfer Of Other Real Estate TransferOfOtherRealEstate	330000	USD
CY2022Q1	us-gaap	Transfer Of Portfolio Loans And Leases To Held For Sale1 TransferOfPortfolioLoansAndLeasesToHeldForSale1	8700000	USD
CY2021Q1	us-gaap	Transfer Of Portfolio Loans And Leases To Held For Sale1 TransferOfPortfolioLoansAndLeasesToHeldForSale1	2521000	USD
CY2022Q1	us-gaap	Transfer Of Loans Held For Sale To Portfolio Loans1 TransferOfLoansHeldForSaleToPortfolioLoans1	47956000	USD
CY2021Q1	us-gaap	Transfer Of Loans Held For Sale To Portfolio Loans1 TransferOfLoansHeldForSaleToPortfolioLoans1	14413000	USD
CY2022Q1	us-gaap	Dividends Payable Current And Noncurrent DividendsPayableCurrentAndNoncurrent	60000	USD
CY2021Q1	us-gaap	Dividends Payable Current And Noncurrent DividendsPayableCurrentAndNoncurrent	38000	USD
CY2022Q1	us-gaap	Right Of Use Asset Obtained In Exchange For Operating Lease Liability RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability	283000	USD
CY2021Q1	us-gaap	Right Of Use Asset Obtained In Exchange For Operating Lease Liability RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability	157000	USD
CY2022Q1	fbk	Number Of Full Service Branches NumberOfFullServiceBranches	81	branch
CY2022Q1	us-gaap	Prior Period Reclassification Adjustment Description PriorPeriodReclassificationAdjustmentDescription	Certain prior period amounts have been reclassified to conform to the current period presentation without any impact on the reported amounts of net income or shareholders’ equity.
CY2022Q1	us-gaap	Net Income Loss NetIncomeLoss	35236000	USD
CY2021Q1	us-gaap	Net Income Loss NetIncomeLoss	52874000	USD
CY2022Q1	us-gaap	Undistributed Earnings Loss Allocated To Participating Securities Basic UndistributedEarningsLossAllocatedToParticipatingSecuritiesBasic	0	USD
CY2021Q1	us-gaap	Undistributed Earnings Loss Allocated To Participating Securities Basic UndistributedEarningsLossAllocatedToParticipatingSecuritiesBasic	0	USD
CY2022Q1	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	35236000	USD
CY2021Q1	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	52874000	USD
CY2022Q1	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	47530520	shares
CY2021Q1	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	47278865	shares
CY2022Q1	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.74
CY2021Q1	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	1.12
CY2022Q1	us-gaap	Net Income Loss From Continuing Operations Available To Common Shareholders Diluted NetIncomeLossFromContinuingOperationsAvailableToCommonShareholdersDiluted	35236000	USD
CY2021Q1	us-gaap	Net Income Loss From Continuing Operations Available To Common Shareholders Diluted NetIncomeLossFromContinuingOperationsAvailableToCommonShareholdersDiluted	52874000	USD
CY2022Q1	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	47530520	shares
CY2021Q1	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	47278865	shares
CY2022Q1	us-gaap	Weighted Average Number Of Shares Contingently Issuable WeightedAverageNumberOfSharesContingentlyIssuable	193382	shares
CY2021Q1	us-gaap	Weighted Average Number Of Shares Contingently Issuable WeightedAverageNumberOfSharesContingentlyIssuable	690241	shares
CY2022Q1	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	47723902	shares
CY2021Q1	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	47969106	shares
CY2022Q1	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.74
CY2021Q1	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	1.10
CY2022Q1	fbk	Number Of Delivery Channels NumberOfDeliveryChannels	2	channel
CY2022Q1	us-gaap	Debt Securities Available For Sale Amortized Cost Excluding Accrued Interest Before Allowance For Credit Loss DebtSecuritiesAvailableForSaleAmortizedCostExcludingAccruedInterestBeforeAllowanceForCreditLoss	1784458000	USD
CY2022Q1	us-gaap	Available For Sale Debt Securities Accumulated Gross Unrealized Gain Before Tax AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax	4232000	USD
CY2022Q1	us-gaap	Available For Sale Debt Securities Accumulated Gross Unrealized Loss Before Tax AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax	105165000	USD
CY2022Q1	us-gaap	Debt Securities Available For Sale Amortized Cost Allowance For Credit Loss Excluding Accrued Interest DebtSecuritiesAvailableForSaleAmortizedCostAllowanceForCreditLossExcludingAccruedInterest	0	USD
CY2022Q1	us-gaap	Debt Securities Available For Sale Excluding Accrued Interest DebtSecuritiesAvailableForSaleExcludingAccruedInterest	1683525000	USD
CY2021Q4	us-gaap	Debt Securities Available For Sale Amortized Cost Excluding Accrued Interest Before Allowance For Credit Loss DebtSecuritiesAvailableForSaleAmortizedCostExcludingAccruedInterestBeforeAllowanceForCreditLoss	1673798000	USD
CY2021Q4	us-gaap	Available For Sale Debt Securities Accumulated Gross Unrealized Gain Before Tax AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax	23120000	USD
CY2021Q4	us-gaap	Available For Sale Debt Securities Accumulated Gross Unrealized Loss Before Tax AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax	18393000	USD
CY2021Q4	us-gaap	Debt Securities Available For Sale Amortized Cost Allowance For Credit Loss Excluding Accrued Interest DebtSecuritiesAvailableForSaleAmortizedCostAllowanceForCreditLossExcludingAccruedInterest	0	USD
CY2021Q4	us-gaap	Debt Securities Available For Sale Excluding Accrued Interest DebtSecuritiesAvailableForSaleExcludingAccruedInterest	1678525000	USD
CY2022Q1	us-gaap	Equity Securities Fv Ni EquitySecuritiesFvNi	3213000	USD
CY2021Q4	us-gaap	Equity Securities Fv Ni EquitySecuritiesFvNi	3367000	USD
CY2021	fbk	Noncash Or Part Noncash Trade Date Receivable NoncashOrPartNoncashTradeDateReceivable	0	USD
CY2022Q1	fbk	Noncash Or Part Noncash Trade Date Receivable NoncashOrPartNoncashTradeDateReceivable	0	USD
CY2022Q1	us-gaap	Available For Sale Securities Debt Maturities Within One Year Amortized Cost AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearAmortizedCost	19614000	USD
CY2022Q1	us-gaap	Available For Sale Securities Debt Maturities Within One Year Fair Value AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearFairValue	19602000	USD
CY2021Q4	us-gaap	Available For Sale Securities Debt Maturities Within One Year Amortized Cost AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearAmortizedCost	21851000	USD
CY2021Q4	us-gaap	Available For Sale Securities Debt Maturities Within One Year Fair Value AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearFairValue	21884000	USD
CY2022Q1	us-gaap	Available For Sale Securities Debt Maturities After One Through Five Years Amortized Cost AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughFiveYearsAmortizedCost	121436000	USD
CY2022Q1	us-gaap	Available For Sale Securities Debt Maturities After One Through Five Years Fair Value AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughFiveYearsFairValue	118438000	USD
CY2021Q4	us-gaap	Available For Sale Securities Debt Maturities After One Through Five Years Amortized Cost AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughFiveYearsAmortizedCost	54847000	USD
CY2021Q4	us-gaap	Available For Sale Securities Debt Maturities After One Through Five Years Fair Value AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughFiveYearsFairValue	55307000	USD
CY2022Q1	us-gaap	Available For Sale Securities Debt Maturities After Five Through Ten Years Amortized Cost AvailableForSaleSecuritiesDebtMaturitiesAfterFiveThroughTenYearsAmortizedCost	55733000	USD
CY2022Q1	us-gaap	Available For Sale Securities Debt Maturities After Five Through Ten Years Fair Value AvailableForSaleSecuritiesDebtMaturitiesAfterFiveThroughTenYearsFairValue	54635000	USD
CY2021Q4	us-gaap	Available For Sale Securities Debt Maturities After Five Through Ten Years Amortized Cost AvailableForSaleSecuritiesDebtMaturitiesAfterFiveThroughTenYearsAmortizedCost	45714000	USD
CY2021Q4	us-gaap	Available For Sale Securities Debt Maturities After Five Through Ten Years Fair Value AvailableForSaleSecuritiesDebtMaturitiesAfterFiveThroughTenYearsFairValue	46975000	USD
CY2022Q1	us-gaap	Available For Sale Securities Debt Maturities After Ten Years Amortized Cost AvailableForSaleSecuritiesDebtMaturitiesAfterTenYearsAmortizedCost	252732000	USD
CY2022Q1	us-gaap	Available For Sale Securities Debt Maturities After Ten Years Fair Value AvailableForSaleSecuritiesDebtMaturitiesAfterTenYearsFairValue	244287000	USD
CY2021Q4	us-gaap	Available For Sale Securities Debt Maturities After Ten Years Amortized Cost AvailableForSaleSecuritiesDebtMaturitiesAfterTenYearsAmortizedCost	255077000	USD
CY2021Q4	us-gaap	Available For Sale Securities Debt Maturities After Ten Years Fair Value AvailableForSaleSecuritiesDebtMaturitiesAfterTenYearsFairValue	269737000	USD
CY2022Q1	us-gaap	Available For Sale Securities Debt Maturities Single Maturity Date Amortized Cost Basis AvailableForSaleSecuritiesDebtMaturitiesSingleMaturityDateAmortizedCostBasis	449515000	USD
CY2022Q1	us-gaap	Available For Sale Securities Debt Maturities Single Maturity Date AvailableForSaleSecuritiesDebtMaturitiesSingleMaturityDate	436962000	USD
CY2021Q4	us-gaap	Available For Sale Securities Debt Maturities Single Maturity Date Amortized Cost Basis AvailableForSaleSecuritiesDebtMaturitiesSingleMaturityDateAmortizedCostBasis	377489000	USD
CY2021Q4	us-gaap	Available For Sale Securities Debt Maturities Single Maturity Date AvailableForSaleSecuritiesDebtMaturitiesSingleMaturityDate	393903000	USD
CY2022Q1	us-gaap	Debt Securities Available For Sale Amortized Cost Excluding Accrued Interest Before Allowance For Credit Loss DebtSecuritiesAvailableForSaleAmortizedCostExcludingAccruedInterestBeforeAllowanceForCreditLoss	1784458000	USD
CY2022Q1	us-gaap	Debt Securities Available For Sale Excluding Accrued Interest DebtSecuritiesAvailableForSaleExcludingAccruedInterest	1683525000	USD
CY2021Q4	us-gaap	Debt Securities Available For Sale Amortized Cost Excluding Accrued Interest Before Allowance For Credit Loss DebtSecuritiesAvailableForSaleAmortizedCostExcludingAccruedInterestBeforeAllowanceForCreditLoss	1673798000	USD
CY2021Q4	us-gaap	Debt Securities Available For Sale Excluding Accrued Interest DebtSecuritiesAvailableForSaleExcludingAccruedInterest	1678525000	USD
CY2022Q1	us-gaap	Proceeds From Sale Of Available For Sale Securities Debt ProceedsFromSaleOfAvailableForSaleSecuritiesDebt	0	USD
CY2021Q1	us-gaap	Proceeds From Sale Of Available For Sale Securities Debt ProceedsFromSaleOfAvailableForSaleSecuritiesDebt	0	USD
CY2022Q1	us-gaap	Proceeds From Maturities Prepayments And Calls Of Available For Sale Securities ProceedsFromMaturitiesPrepaymentsAndCallsOfAvailableForSaleSecurities	57443000	USD
CY2021Q1	us-gaap	Proceeds From Maturities Prepayments And Calls Of Available For Sale Securities ProceedsFromMaturitiesPrepaymentsAndCallsOfAvailableForSaleSecurities	61040000	USD
CY2022Q1	us-gaap	Debt Securities Available For Sale Realized Gain DebtSecuritiesAvailableForSaleRealizedGain	2000	USD
CY2021Q1	us-gaap	Debt Securities Available For Sale Realized Gain DebtSecuritiesAvailableForSaleRealizedGain	7000	USD
CY2022Q1	us-gaap	Debt Securities Available For Sale Realized Loss DebtSecuritiesAvailableForSaleRealizedLoss	0	USD
CY2021Q1	us-gaap	Debt Securities Available For Sale Realized Loss DebtSecuritiesAvailableForSaleRealizedLoss	0	USD
CY2022Q1	fbk	Equity Securities Fvni And Sale Gain Loss EquitySecuritiesFVNIAndSaleGainLoss	-154000	USD
CY2021Q1	fbk	Equity Securities Fvni And Sale Gain Loss EquitySecuritiesFVNIAndSaleGainLoss	76000	USD
CY2021Q4	us-gaap	Debt Securities Available For Sale Amortized Cost Allowance For Credit Loss Excluding Accrued Interest DebtSecuritiesAvailableForSaleAmortizedCostAllowanceForCreditLossExcludingAccruedInterest	0	USD
CY2022Q1	us-gaap	Debt Securities Available For Sale Amortized Cost Allowance For Credit Loss Excluding Accrued Interest DebtSecuritiesAvailableForSaleAmortizedCostAllowanceForCreditLossExcludingAccruedInterest	0	USD
CY2022Q1	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position Less Than12 Months DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12Months	1257882000	USD
CY2022Q1	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position Less Than12 Months Accumulated Loss DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12MonthsAccumulatedLoss	87240000	USD
CY2022Q1	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position12 Months Or Longer DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLonger	177018000	USD
CY2022Q1	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position12 Months Or Longer Accumulated Loss DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLongerAccumulatedLoss	17925000	USD
CY2022Q1	us-gaap	Debt Securities Available For Sale Unrealized Loss Position DebtSecuritiesAvailableForSaleUnrealizedLossPosition	1434900000	USD
CY2022Q1	us-gaap	Debt Securities Available For Sale Unrealized Loss Position Accumulated Loss DebtSecuritiesAvailableForSaleUnrealizedLossPositionAccumulatedLoss	105165000	USD
CY2021Q4	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position Less Than12 Months DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12Months	928115000	USD
CY2021Q4	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position Less Than12 Months Accumulated Loss DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12MonthsAccumulatedLoss	14703000	USD
CY2021Q4	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position12 Months Or Longer DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLonger	102799000	USD
CY2021Q4	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position12 Months Or Longer Accumulated Loss DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLongerAccumulatedLoss	3690000	USD
CY2021Q4	us-gaap	Debt Securities Available For Sale Unrealized Loss Position DebtSecuritiesAvailableForSaleUnrealizedLossPosition	1030914000	USD
CY2021Q4	us-gaap	Debt Securities Available For Sale Unrealized Loss Position Accumulated Loss DebtSecuritiesAvailableForSaleUnrealizedLossPositionAccumulatedLoss	18393000	USD
CY2022Q1	fbk	Number Of Available For Sale Securities In Portfolio NumberOfAvailableForSaleSecuritiesInPortfolio	514	security
CY2021Q4	fbk	Number Of Available For Sale Securities In Portfolio NumberOfAvailableForSaleSecuritiesInPortfolio	511	security
CY2022Q1	us-gaap	Debt Securities Available For Sale Unrealized Loss Position Number Of Positions DebtSecuritiesAvailableForSaleUnrealizedLossPositionNumberOfPositions	321	security
CY2021Q4	us-gaap	Debt Securities Available For Sale Unrealized Loss Position Number Of Positions DebtSecuritiesAvailableForSaleUnrealizedLossPositionNumberOfPositions	80	security
CY2022Q1	us-gaap	Financing Receivable Excluding Accrued Interest Before Allowance For Credit Loss FinancingReceivableExcludingAccruedInterestBeforeAllowanceForCreditLoss	8004976000	USD
CY2021Q4	us-gaap	Financing Receivable Excluding Accrued Interest Before Allowance For Credit Loss FinancingReceivableExcludingAccruedInterestBeforeAllowanceForCreditLoss	7604662000	USD
CY2022Q1	us-gaap	Financing Receivable Allowance For Credit Loss Excluding Accrued Interest FinancingReceivableAllowanceForCreditLossExcludingAccruedInterest	120049000	USD
CY2021Q4	us-gaap	Financing Receivable Allowance For Credit Loss Excluding Accrued Interest FinancingReceivableAllowanceForCreditLossExcludingAccruedInterest	125559000	USD
CY2022Q1	us-gaap	Financing Receivable Excluding Accrued Interest After Allowance For Credit Loss FinancingReceivableExcludingAccruedInterestAfterAllowanceForCreditLoss	7884927000	USD
CY2021Q4	us-gaap	Financing Receivable Excluding Accrued Interest After Allowance For Credit Loss FinancingReceivableExcludingAccruedInterestAfterAllowanceForCreditLoss	7479103000	USD
CY2022Q1	us-gaap	Financing Receivable Accrued Interest Before Allowance For Credit Loss FinancingReceivableAccruedInterestBeforeAllowanceForCreditLoss	31746000	USD
CY2021Q4	us-gaap	Financing Receivable Accrued Interest Before Allowance For Credit Loss FinancingReceivableAccruedInterestBeforeAllowanceForCreditLoss	31676000	USD
CY2021Q4	us-gaap	Financing Receivable Allowance For Credit Loss Excluding Accrued Interest FinancingReceivableAllowanceForCreditLossExcludingAccruedInterest	125559000	USD
CY2022Q1	us-gaap	Provision For Loan Losses Expensed ProvisionForLoanLossesExpensed	-6129000	USD
CY2022Q1	us-gaap	Financing Receivable Allowance For Credit Losses Recovery FinancingReceivableAllowanceForCreditLossesRecovery	1198000	USD
CY2022Q1	us-gaap	Financing Receivable Allowance For Credit Losses Write Offs FinancingReceivableAllowanceForCreditLossesWriteOffs	579000	USD
CY2022Q1	us-gaap	Financing Receivable Allowance For Credit Loss Excluding Accrued Interest FinancingReceivableAllowanceForCreditLossExcludingAccruedInterest	120049000	USD
CY2021Q1	us-gaap	Provision For Loan Losses Expensed ProvisionForLoanLossesExpensed	-11632000	USD
CY2020Q4	us-gaap	Financing Receivable Allowance For Credit Loss Excluding Accrued Interest FinancingReceivableAllowanceForCreditLossExcludingAccruedInterest	170389000	USD
CY2021Q1	us-gaap	Financing Receivable Allowance For Credit Losses Recovery FinancingReceivableAllowanceForCreditLossesRecovery	367000	USD
CY2021Q1	us-gaap	Financing Receivable Allowance For Credit Losses Write Offs FinancingReceivableAllowanceForCreditLossesWriteOffs	1170000	USD
CY2021Q1	us-gaap	Financing Receivable Allowance For Credit Loss Excluding Accrued Interest FinancingReceivableAllowanceForCreditLossExcludingAccruedInterest	157954000	USD
CY2022Q1	us-gaap	Financing Receivable Recorded Investment90 Days Past Due And Still Accruing FinancingReceivableRecordedInvestment90DaysPastDueAndStillAccruing	12873000	USD
CY2022Q1	us-gaap	Financing Receivable Recorded Investment Nonaccrual Status FinancingReceivableRecordedInvestmentNonaccrualStatus	27826000	USD
CY2022Q1	us-gaap	Financing Receivable Excluding Accrued Interest Before Allowance For Credit Loss FinancingReceivableExcludingAccruedInterestBeforeAllowanceForCreditLoss	8004976000	USD
CY2021Q4	us-gaap	Financing Receivable Recorded Investment90 Days Past Due And Still Accruing FinancingReceivableRecordedInvestment90DaysPastDueAndStillAccruing	11735000	USD
CY2021Q4	us-gaap	Financing Receivable Recorded Investment Nonaccrual Status FinancingReceivableRecordedInvestmentNonaccrualStatus	35568000	USD
CY2021Q4	us-gaap	Financing Receivable Excluding Accrued Interest Before Allowance For Credit Loss FinancingReceivableExcludingAccruedInterestBeforeAllowanceForCreditLoss	7604662000	USD
CY2022Q1	us-gaap	Financing Receivable Nonaccrual No Allowance FinancingReceivableNonaccrualNoAllowance	13953000	USD
CY2022Q1	fbk	Financing Receivable Nonaccrual Related Allowance FinancingReceivableNonaccrualRelatedAllowance	13873000	USD
CY2022Q1	fbk	Financing Receivable Allowance For Credit Losses Nonaccrual FinancingReceivableAllowanceForCreditLossesNonaccrual	2241000	USD
CY2021Q4	us-gaap	Financing Receivable Nonaccrual No Allowance FinancingReceivableNonaccrualNoAllowance	24386000	USD
CY2021Q4	fbk	Financing Receivable Nonaccrual Related Allowance FinancingReceivableNonaccrualRelatedAllowance	11182000	USD
CY2021Q4	fbk	Financing Receivable Allowance For Credit Losses Nonaccrual FinancingReceivableAllowanceForCreditLossesNonaccrual	555000	USD
CY2022Q1	us-gaap	Financing Receivable Nonaccrual Interest Income FinancingReceivableNonaccrualInterestIncome	275000	USD
CY2021Q1	us-gaap	Financing Receivable Nonaccrual Interest Income FinancingReceivableNonaccrualInterestIncome	385000	USD
CY2022Q1	us-gaap	Financing Receivable Accrued Interest Writeoff FinancingReceivableAccruedInterestWriteoff	184000	USD
CY2021Q1	us-gaap	Financing Receivable Accrued Interest Writeoff FinancingReceivableAccruedInterestWriteoff	465000	USD
CY2022Q1	us-gaap	Financing Receivable Modifications Recorded Investment FinancingReceivableModificationsRecordedInvestment	20601000	USD
CY2021Q4	us-gaap	Financing Receivable Modifications Recorded Investment FinancingReceivableModificationsRecordedInvestment	32435000	USD
CY2022Q1	fbk	Financing Receivable Troubled Debt Restructuring Nonaccrual FinancingReceivableTroubledDebtRestructuringNonaccrual	13722000	USD
CY2021Q4	fbk	Financing Receivable Troubled Debt Restructuring Nonaccrual FinancingReceivableTroubledDebtRestructuringNonaccrual	11084000	USD
CY2022Q1	fbk	Financing Receivable Modifications Recorded Investment Specific Reserves FinancingReceivableModificationsRecordedInvestmentSpecificReserves	1994000	USD
CY2021Q4	fbk	Financing Receivable Modifications Recorded Investment Specific Reserves FinancingReceivableModificationsRecordedInvestmentSpecificReserves	1245000	USD
CY2022Q1	us-gaap	Financing Receivable Modifications Number Of Contracts2 FinancingReceivableModificationsNumberOfContracts2	2	loan
CY2022Q1	us-gaap	Financing Receivable Modifications Pre Modification Recorded Investment2 FinancingReceivableModificationsPreModificationRecordedInvestment2	102000	USD
CY2022Q1	us-gaap	Financing Receivable Modifications Post Modification Recorded Investment2 FinancingReceivableModificationsPostModificationRecordedInvestment2	102000	USD
CY2022Q1	fbk	Financing Receivable Modifications Charge Offs And Specific Reserves FinancingReceivableModificationsChargeOffsAndSpecificReserves	0	USD
CY2021Q1	us-gaap	Financing Receivable Modifications Number Of Contracts2 FinancingReceivableModificationsNumberOfContracts2	2	loan
CY2021Q1	us-gaap	Financing Receivable Modifications Pre Modification Recorded Investment2 FinancingReceivableModificationsPreModificationRecordedInvestment2	12104000	USD
CY2021Q1	us-gaap	Financing Receivable Modifications Post Modification Recorded Investment2 FinancingReceivableModificationsPostModificationRecordedInvestment2	12104000	USD
CY2021Q1	fbk	Financing Receivable Modifications Charge Offs And Specific Reserves FinancingReceivableModificationsChargeOffsAndSpecificReserves	0	USD
CY2022Q1	us-gaap	Financing Receivable Modifications Subsequent Default Recorded Investment1 FinancingReceivableModificationsSubsequentDefaultRecordedInvestment1	304000	USD
CY2021Q1	us-gaap	Financing Receivable Modifications Subsequent Default Recorded Investment1 FinancingReceivableModificationsSubsequentDefaultRecordedInvestment1	0	USD
CY2021Q4	us-gaap	Foreclosed Assets ForeclosedAssets	9777000	USD
CY2020Q4	us-gaap	Foreclosed Assets ForeclosedAssets	12111000	USD
CY2022Q1	us-gaap	Transfer To Other Real Estate TransferToOtherRealEstate	563000	USD
CY2021Q1	us-gaap	Transfer To Other Real Estate TransferToOtherRealEstate	1395000	USD
CY2022Q1	us-gaap	Proceeds From Sale Of Other Real Estate ProceedsFromSaleOfOtherRealEstate	121000	USD
CY2021Q1	fbk	Gain Loss On Sale Of Foreclosed Real Estate Assets. GainLossOnSaleOfForeclosedRealEstateAssets.	828000	USD
CY2021Q1	us-gaap	Proceeds From Sale Of Other Real Estate ProceedsFromSaleOfOtherRealEstate	2495000	USD
CY2022Q1	fbk	Gain Loss On Sale Of Foreclosed Real Estate Assets. GainLossOnSaleOfForeclosedRealEstateAssets.	-104000	USD
CY2022Q1	us-gaap	Transfer Of Other Real Estate TransferOfOtherRealEstate	0	USD
CY2021Q1	us-gaap	Transfer Of Other Real Estate TransferOfOtherRealEstate	330000	USD
CY2022Q1	fbk	Foreclosed Real Estate Expense Write Downs And Liquidations ForeclosedRealEstateExpenseWriteDownsAndLiquidations	394000	USD
CY2021Q1	fbk	Foreclosed Real Estate Expense Write Downs And Liquidations ForeclosedRealEstateExpenseWriteDownsAndLiquidations	332000	USD
CY2022Q1	us-gaap	Foreclosed Assets ForeclosedAssets	9721000	USD
CY2021Q1	us-gaap	Foreclosed Assets ForeclosedAssets	11177000	USD
CY2022Q1	us-gaap	Payments To Acquire Held For Sale Real Estate PaymentsToAcquireHeldForSaleRealEstate	3029000	USD
CY2021	us-gaap	Payments To Acquire Held For Sale Real Estate PaymentsToAcquireHeldForSaleRealEstate	3348000	USD
CY2022Q1	fbk	Lessee Number Of Operating Leases LesseeNumberOfOperatingLeases	53	lease
CY2022Q1	fbk	Lessee Number Of Finance Leases LesseeNumberOfFinanceLeases	1	lease
CY2022Q1	fbk	Lessee Number Of Total Operating Leases Noncurrent LesseeNumberOfTotalOperatingLeasesNoncurrent	41	lease
CY2022Q1	fbk	Lessee Number Of Total Finance Leases Noncurrent LesseeNumberOfTotalFinanceLeasesNoncurrent	1	lease
CY2022Q1	fbk	Lessee Operating And Finance Lease Number Of Options To Renew LesseeOperatingAndFinanceLeaseNumberOfOptionsToRenew	1	lease_renewal_option
CY2022Q1	us-gaap	Operating Lease Right Of Use Asset OperatingLeaseRightOfUseAsset	41037000	USD
CY2021Q4	us-gaap	Operating Lease Right Of Use Asset OperatingLeaseRightOfUseAsset	41686000	USD
CY2022Q1	us-gaap	Finance Lease Right Of Use Asset FinanceLeaseRightOfUseAsset	1450000	USD
CY2021Q4	us-gaap	Finance Lease Right Of Use Asset FinanceLeaseRightOfUseAsset	1487000	USD
CY2022Q1	fbk	Right Of Use Asset RightOfUseAsset	42487000	USD
CY2021Q4	fbk	Right Of Use Asset RightOfUseAsset	43173000	USD
CY2022Q1	us-gaap	Operating Lease Liability OperatingLeaseLiability	45528000	USD
CY2021Q4	us-gaap	Operating Lease Liability OperatingLeaseLiability	46367000	USD
CY2022Q1	us-gaap	Finance Lease Liability FinanceLeaseLiability	1488000	USD
CY2021Q4	us-gaap	Finance Lease Liability FinanceLeaseLiability	1518000	USD
CY2022Q1	fbk	Lease Liability LeaseLiability	47016000	USD
CY2021Q4	fbk	Lease Liability LeaseLiability	47885000	USD
CY2022Q1	us-gaap	Operating Lease Weighted Average Remaining Lease Term1 OperatingLeaseWeightedAverageRemainingLeaseTerm1	P12Y3M18D
CY2021Q4	us-gaap	Operating Lease Weighted Average Remaining Lease Term1 OperatingLeaseWeightedAverageRemainingLeaseTerm1	P12Y4M24D
CY2022Q1	us-gaap	Finance Lease Weighted Average Remaining Lease Term1 FinanceLeaseWeightedAverageRemainingLeaseTerm1	P13Y1M6D
CY2021Q4	us-gaap	Finance Lease Weighted Average Remaining Lease Term1 FinanceLeaseWeightedAverageRemainingLeaseTerm1	P13Y4M24D
CY2022Q1	us-gaap	Operating Lease Weighted Average Discount Rate Percent OperatingLeaseWeightedAverageDiscountRatePercent	0.0272
CY2021Q4	us-gaap	Operating Lease Weighted Average Discount Rate Percent OperatingLeaseWeightedAverageDiscountRatePercent	0.0273
CY2022Q1	us-gaap	Finance Lease Weighted Average Discount Rate Percent FinanceLeaseWeightedAverageDiscountRatePercent	0.0176
CY2021Q4	us-gaap	Finance Lease Weighted Average Discount Rate Percent FinanceLeaseWeightedAverageDiscountRatePercent	0.0176
CY2022Q1	us-gaap	Operating Lease Cost OperatingLeaseCost	1710000	USD
CY2021Q1	us-gaap	Operating Lease Cost OperatingLeaseCost	1939000	USD
CY2022Q1	us-gaap	Short Term Lease Cost ShortTermLeaseCost	111000	USD
CY2021Q1	us-gaap	Short Term Lease Cost ShortTermLeaseCost	87000	USD
CY2022Q1	us-gaap	Variable Lease Cost VariableLeaseCost	256000	USD
CY2021Q1	us-gaap	Variable Lease Cost VariableLeaseCost	235000	USD
CY2022Q1	us-gaap	Operating Lease Impairment Loss OperatingLeaseImpairmentLoss	0	USD
CY2021Q1	us-gaap	Operating Lease Impairment Loss OperatingLeaseImpairmentLoss	38000	USD
CY2022Q1	fbk	Gain Loss On Modification And Termination Of Lease GainLossOnModificationAndTerminationOfLease	18000	USD
CY2021Q1	fbk	Gain Loss On Modification And Termination Of Lease GainLossOnModificationAndTerminationOfLease	0	USD
CY2022Q1	us-gaap	Finance Lease Interest Expense FinanceLeaseInterestExpense	9000	USD
CY2021Q1	us-gaap	Finance Lease Interest Expense FinanceLeaseInterestExpense	6000	USD
CY2022Q1	us-gaap	Finance Lease Right Of Use Asset Amortization FinanceLeaseRightOfUseAssetAmortization	37000	USD
CY2021Q1	us-gaap	Finance Lease Right Of Use Asset Amortization FinanceLeaseRightOfUseAssetAmortization	28000	USD
CY2022Q1	us-gaap	Lease Cost LeaseCost	2105000	USD
CY2021Q1	us-gaap	Lease Cost LeaseCost	2333000	USD
CY2022Q1	fbk	Gain Loss On Modification And Termination Of Lease GainLossOnModificationAndTerminationOfLease	18000	USD
CY2021Q1	us-gaap	Operating Lease Impairment Loss OperatingLeaseImpairmentLoss	38000	USD
CY2022Q1	us-gaap	Lessee Operating Lease Liability Payments Due Next Rolling Twelve Months LesseeOperatingLeaseLiabilityPaymentsDueNextRollingTwelveMonths	5542000	USD
CY2022Q1	us-gaap	Finance Lease Liability Payments Due In Next Rolling Twelve Months FinanceLeaseLiabilityPaymentsDueInNextRollingTwelveMonths	87000	USD
CY2022Q1	us-gaap	Lessee Operating Lease Liability Payments Due In Rolling Year Two LesseeOperatingLeaseLiabilityPaymentsDueInRollingYearTwo	5959000	USD
CY2022Q1	us-gaap	Finance Lease Liability Payments Due In Rolling Year Two FinanceLeaseLiabilityPaymentsDueInRollingYearTwo	118000	USD
CY2022Q1	us-gaap	Lessee Operating Lease Liability Payments Due In Rolling Year Three LesseeOperatingLeaseLiabilityPaymentsDueInRollingYearThree	5140000	USD
CY2022Q1	us-gaap	Finance Lease Liability Payments Due In Rolling Year Three FinanceLeaseLiabilityPaymentsDueInRollingYearThree	120000	USD
CY2022Q1	us-gaap	Lessee Operating Lease Liability Payments Due In Rolling Year Four LesseeOperatingLeaseLiabilityPaymentsDueInRollingYearFour	4823000	USD
CY2022Q1	us-gaap	Finance Lease Liability Payments Due In Rolling Year Four FinanceLeaseLiabilityPaymentsDueInRollingYearFour	121000	USD
CY2022Q1	us-gaap	Lessee Operating Lease Liability Payments Due In Rolling Year Five LesseeOperatingLeaseLiabilityPaymentsDueInRollingYearFive	4700000	USD
CY2022Q1	us-gaap	Finance Lease Liability Payments Due In Rolling Year Five FinanceLeaseLiabilityPaymentsDueInRollingYearFive	123000	USD
CY2022Q1	us-gaap	Lessee Operating Lease Liability Payments Due After Rolling Year Five LesseeOperatingLeaseLiabilityPaymentsDueAfterRollingYearFive	28730000	USD
CY2022Q1	us-gaap	Finance Lease Liability Payments Due In Rolling After Year Five FinanceLeaseLiabilityPaymentsDueInRollingAfterYearFive	1102000	USD
CY2022Q1	us-gaap	Lessee Operating Lease Liability Payments Due LesseeOperatingLeaseLiabilityPaymentsDue	54894000	USD
CY2022Q1	us-gaap	Finance Lease Liability Payments Due FinanceLeaseLiabilityPaymentsDue	1671000	USD
CY2022Q1	us-gaap	Lessee Operating Lease Liability Undiscounted Excess Amount LesseeOperatingLeaseLiabilityUndiscountedExcessAmount	9366000	USD
CY2022Q1	us-gaap	Finance Lease Liability Undiscounted Excess Amount FinanceLeaseLiabilityUndiscountedExcessAmount	183000	USD
CY2022Q1	us-gaap	Operating Lease Liability OperatingLeaseLiability	45528000	USD
CY2022Q1	us-gaap	Finance Lease Liability FinanceLeaseLiability	1488000	USD
CY2021Q4	us-gaap	Servicing Asset At Amortized Value ServicingAssetAtAmortizedValue	115512000	USD
CY2020Q4	us-gaap	Servicing Asset At Amortized Value ServicingAssetAtAmortizedValue	79997000	USD
CY2022Q1	us-gaap	Servicing Asset At Amortized Value Additions ServicingAssetAtAmortizedValueAdditions	9812000	USD
CY2021Q1	us-gaap	Servicing Asset At Amortized Value Additions ServicingAssetAtAmortizedValueAdditions	11594000	USD
CY2022Q1	fbk	Servicing Asset At Fair Value Changes In Fair Value Due To Pay Offs Or Pay Downs ServicingAssetAtFairValueChangesInFairValueDueToPayOffsOrPayDowns	-4471000	USD
CY2021Q1	fbk	Servicing Asset At Fair Value Changes In Fair Value Due To Pay Offs Or Pay Downs ServicingAssetAtFairValueChangesInFairValueDueToPayOffsOrPayDowns	-9321000	USD
CY2022Q1	us-gaap	Servicing Asset At Fair Value Changes In Fair Value Resulting From Changes In Valuation Inputs Or Changes In Assumptions ServicingAssetAtFairValueChangesInFairValueResultingFromChangesInValuationInputsOrChangesInAssumptions	23822000	USD
CY2021Q1	us-gaap	Servicing Asset At Fair Value Changes In Fair Value Resulting From Changes In Valuation Inputs Or Changes In Assumptions ServicingAssetAtFairValueChangesInFairValueResultingFromChangesInValuationInputsOrChangesInAssumptions	21922000	USD
CY2022Q1	us-gaap	Servicing Asset At Amortized Value ServicingAssetAtAmortizedValue	144675000	USD
CY2021Q1	us-gaap	Servicing Asset At Amortized Value ServicingAssetAtAmortizedValue	104192000	USD
CY2022Q1	us-gaap	Contractually Specified Servicing Fees Amount ContractuallySpecifiedServicingFeesAmount	7429000	USD
CY2021Q1	us-gaap	Contractually Specified Servicing Fees Amount ContractuallySpecifiedServicingFeesAmount	6931000	USD
CY2022Q1	fbk	Change In Fair Value Of Mortgage Servicing Rights ChangeInFairValueOfMortgageServicingRights	-19351000	USD
CY2021Q1	fbk	Change In Fair Value Of Mortgage Servicing Rights ChangeInFairValueOfMortgageServicingRights	-12601000	USD
CY2022Q1	fbk	Change In Fair Value Of Derivative Hedging Instruments ChangeInFairValueOfDerivativeHedgingInstruments	19098000	USD
CY2021Q1	fbk	Change In Fair Value Of Derivative Hedging Instruments ChangeInFairValueOfDerivativeHedgingInstruments	17864000	USD
CY2022Q1	fbk	Contractually Specified Servicing Fee Late Fee And Ancillary Fee Earned In Exchange For Servicing Financial Asset Liabilities ContractuallySpecifiedServicingFeeLateFeeAndAncillaryFeeEarnedInExchangeForServicingFinancialAssetLiabilities	7682000	USD
CY2021Q1	fbk	Contractually Specified Servicing Fee Late Fee And Ancillary Fee Earned In Exchange For Servicing Financial Asset Liabilities ContractuallySpecifiedServicingFeeLateFeeAndAncillaryFeeEarnedInExchangeForServicingFinancialAssetLiabilities	1668000	USD
CY2022Q1	fbk	Gross Servicing Expense GrossServicingExpense	2548000	USD
CY2021Q1	fbk	Gross Servicing Expense GrossServicingExpense	2532000	USD
CY2022Q1	fbk	Servicing Income Loss ServicingIncomeLoss	5134000	USD
CY2021Q1	fbk	Servicing Income Loss ServicingIncomeLoss	-864000	USD
CY2022Q1	us-gaap	Continuing Involvement With Transferred Financial Assets Principal Amount Outstanding ContinuingInvolvementWithTransferredFinancialAssetsPrincipalAmountOutstanding	11150118000	USD
CY2021Q4	us-gaap	Continuing Involvement With Transferred Financial Assets Principal Amount Outstanding ContinuingInvolvementWithTransferredFinancialAssetsPrincipalAmountOutstanding	10759286000	USD
CY2022Q1	us-gaap	Assumption For Fair Value Of Interests Continued To Be Held By Transferor Servicing Assets Or Liabilities Prepayment Speed AssumptionForFairValueOfInterestsContinuedToBeHeldByTransferorServicingAssetsOrLiabilitiesPrepaymentSpeed	0.0641
CY2021	us-gaap	Assumption For Fair Value Of Interests Continued To Be Held By Transferor Servicing Assets Or Liabilities Prepayment Speed AssumptionForFairValueOfInterestsContinuedToBeHeldByTransferorServicingAssetsOrLiabilitiesPrepaymentSpeed	0.0931
CY2022Q1	us-gaap	Sensitivity Analysis Of Fair Value Of Interests Continued To Be Held By Transferor Servicing Assets Or Liabilities Impact Of10 Percent Adverse Change In Prepayment Speed SensitivityAnalysisOfFairValueOfInterestsContinuedToBeHeldByTransferorServicingAssetsOrLiabilitiesImpactOf10PercentAdverseChangeInPrepaymentSpeed	5077000	USD
CY2021Q4	us-gaap	Sensitivity Analysis Of Fair Value Of Interests Continued To Be Held By Transferor Servicing Assets Or Liabilities Impact Of10 Percent Adverse Change In Prepayment Speed SensitivityAnalysisOfFairValueOfInterestsContinuedToBeHeldByTransferorServicingAssetsOrLiabilitiesImpactOf10PercentAdverseChangeInPrepaymentSpeed	4905000	USD
CY2022Q1	us-gaap	Sensitivity Analysis Of Fair Value Of Interests Continued To Be Held By Transferor Servicing Assets Or Liabilities Impact Of20 Percent Adverse Change In Prepayment Speed SensitivityAnalysisOfFairValueOfInterestsContinuedToBeHeldByTransferorServicingAssetsOrLiabilitiesImpactOf20PercentAdverseChangeInPrepaymentSpeed	9734000	USD
CY2021Q4	us-gaap	Sensitivity Analysis Of Fair Value Of Interests Continued To Be Held By Transferor Servicing Assets Or Liabilities Impact Of20 Percent Adverse Change In Prepayment Speed SensitivityAnalysisOfFairValueOfInterestsContinuedToBeHeldByTransferorServicingAssetsOrLiabilitiesImpactOf20PercentAdverseChangeInPrepaymentSpeed	9429000	USD
CY2022Q1	us-gaap	Assumption For Fair Value Of Interests Continued To Be Held By Transferor Servicing Assets Or Liabilities Discount Rate AssumptionForFairValueOfInterestsContinuedToBeHeldByTransferorServicingAssetsOrLiabilitiesDiscountRate	0.0868
CY2021	us-gaap	Assumption For Fair Value Of Interests Continued To Be Held By Transferor Servicing Assets Or Liabilities Discount Rate AssumptionForFairValueOfInterestsContinuedToBeHeldByTransferorServicingAssetsOrLiabilitiesDiscountRate	0.0981
CY2022Q1	fbk	Sensitivity Analysis Of Fair Value Of Interests Continued To Be Held By Transfer Or Servicing Assets Or Liabilities Impact Of One Percent Adverse Change In Discount Rate SensitivityAnalysisOfFairValueOfInterestsContinuedToBeHeldByTransferOrServicingAssetsOrLiabilitiesImpactOfOnePercentAdverseChangeInDiscountRate	6456000	USD
CY2021Q4	fbk	Sensitivity Analysis Of Fair Value Of Interests Continued To Be Held By Transfer Or Servicing Assets Or Liabilities Impact Of One Percent Adverse Change In Discount Rate SensitivityAnalysisOfFairValueOfInterestsContinuedToBeHeldByTransferOrServicingAssetsOrLiabilitiesImpactOfOnePercentAdverseChangeInDiscountRate	4785000	USD
CY2022Q1	fbk	Sensitivity Analysis Of Fair Value Of Interests Continued To Be Held By Transferor Servicing Assets Or Liabilities Impact Of Two Percent Adverse Change In Discount Rate SensitivityAnalysisOfFairValueOfInterestsContinuedToBeHeldByTransferorServicingAssetsOrLiabilitiesImpactOfTwoPercentAdverseChangeInDiscountRate	12378000	USD
CY2021Q4	fbk	Sensitivity Analysis Of Fair Value Of Interests Continued To Be Held By Transferor Servicing Assets Or Liabilities Impact Of Two Percent Adverse Change In Discount Rate SensitivityAnalysisOfFairValueOfInterestsContinuedToBeHeldByTransferorServicingAssetsOrLiabilitiesImpactOfTwoPercentAdverseChangeInDiscountRate	9198000	USD
CY2022Q1	fbk	Servicing Assets And Servicing Liabilities At Fair Value Assumptions Used To Estimate Fair Value Weighted Average Coupon Interest Rate ServicingAssetsAndServicingLiabilitiesAtFairValueAssumptionsUsedToEstimateFairValueWeightedAverageCouponInterestRate	0.0320
CY2021	fbk	Servicing Assets And Servicing Liabilities At Fair Value Assumptions Used To Estimate Fair Value Weighted Average Coupon Interest Rate ServicingAssetsAndServicingLiabilitiesAtFairValueAssumptionsUsedToEstimateFairValueWeightedAverageCouponInterestRate	0.0323
CY2022Q1	fbk	Servicing Assets And Servicing Liabilities At Fair Value Assumptions Used To Estimate Fair Value Weighted Average Servicing Fee ServicingAssetsAndServicingLiabilitiesAtFairValueAssumptionsUsedToEstimateFairValueWeightedAverageServicingFee	0.0027
CY2021	fbk	Servicing Assets And Servicing Liabilities At Fair Value Assumptions Used To Estimate Fair Value Weighted Average Servicing Fee ServicingAssetsAndServicingLiabilitiesAtFairValueAssumptionsUsedToEstimateFairValueWeightedAverageServicingFee	0.0027
CY2022Q1	us-gaap	Assumption For Fair Value Of Assets Or Liabilities That Relate To Transferors Continuing Involvement Weighted Average Life1 AssumptionForFairValueOfAssetsOrLiabilitiesThatRelateToTransferorsContinuingInvolvementWeightedAverageLife1	P330M
CY2021	us-gaap	Assumption For Fair Value Of Assets Or Liabilities That Relate To Transferors Continuing Involvement Weighted Average Life1 AssumptionForFairValueOfAssetsOrLiabilitiesThatRelateToTransferorsContinuingInvolvementWeightedAverageLife1	P330M
CY2022Q1	us-gaap	Escrow Deposit EscrowDeposit	131147000	USD
CY2021Q4	us-gaap	Escrow Deposit EscrowDeposit	127617000	USD
CY2022Q1	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	0	USD
CY2021Q1	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	5949000	USD
CY2022Q1	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	9313000	USD
CY2021Q1	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	9639000	USD
CY2022Q1	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	9313000	USD
CY2021Q1	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	15588000	USD
CY2022Q1	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.21
CY2021Q1	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.21
CY2022Q1	us-gaap	Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate	9355000	USD
CY2022Q1	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.210
CY2021Q1	us-gaap	Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate	14377000	USD
CY2021Q1	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.210
CY2022Q1	fbk	Income Tax Reconciliation Change In State Taxes Net Of Federal Benefit IncomeTaxReconciliationChangeInStateTaxesNetOfFederalBenefit	951000	USD
CY2022Q1	us-gaap	Effective Income Tax Rate Reconciliation State And Local Income Taxes EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes	0.021
CY2021Q1	fbk	Income Tax Reconciliation Change In State Taxes Net Of Federal Benefit IncomeTaxReconciliationChangeInStateTaxesNetOfFederalBenefit	1750000	USD
CY2021Q1	us-gaap	Effective Income Tax Rate Reconciliation State And Local Income Taxes EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes	0.026
CY2022Q1	us-gaap	Income Tax Reconciliation Nondeductible Expense Share Based Compensation Cost IncomeTaxReconciliationNondeductibleExpenseShareBasedCompensationCost	-291000	USD
CY2022Q1	us-gaap	Effective Income Tax Rate Reconciliation Nondeductible Expense Share Based Compensation Cost EffectiveIncomeTaxRateReconciliationNondeductibleExpenseShareBasedCompensationCost	-0.007
CY2021Q1	us-gaap	Income Tax Reconciliation Nondeductible Expense Share Based Compensation Cost IncomeTaxReconciliationNondeductibleExpenseShareBasedCompensationCost	-221000	USD
CY2021Q1	us-gaap	Effective Income Tax Rate Reconciliation Nondeductible Expense Share Based Compensation Cost EffectiveIncomeTaxRateReconciliationNondeductibleExpenseShareBasedCompensationCost	-0.003
CY2022Q1	fbk	Effective Income Tax Rate Reconciliation Municipal Interest Income Net Of Interest Disallowance Amount EffectiveIncomeTaxRateReconciliationMunicipalInterestIncomeNetOfInterestDisallowanceAmount	444000	USD
CY2022Q1	fbk	Effective Income Tax Rate Reconciliation Municipal Interest Income Net Of Interest Disallowance Percent EffectiveIncomeTaxRateReconciliationMunicipalInterestIncomeNetOfInterestDisallowancePercent	0.010
CY2021Q1	fbk	Effective Income Tax Rate Reconciliation Municipal Interest Income Net Of Interest Disallowance Amount EffectiveIncomeTaxRateReconciliationMunicipalInterestIncomeNetOfInterestDisallowanceAmount	424000	USD
CY2021Q1	fbk	Effective Income Tax Rate Reconciliation Municipal Interest Income Net Of Interest Disallowance Percent EffectiveIncomeTaxRateReconciliationMunicipalInterestIncomeNetOfInterestDisallowancePercent	0.006
CY2022Q1	fbk	Income Tax Reconciliation Bank Owned Life Insurance IncomeTaxReconciliationBankOwnedLifeInsurance	74000	USD
CY2022Q1	fbk	Effective Income Tax Rate Reconciliation Bank Owned Life Insurance Percent EffectiveIncomeTaxRateReconciliationBankOwnedLifeInsurancePercent	0.002
CY2021Q1	fbk	Income Tax Reconciliation Bank Owned Life Insurance IncomeTaxReconciliationBankOwnedLifeInsurance	84000	USD
CY2021Q1	fbk	Effective Income Tax Rate Reconciliation Bank Owned Life Insurance Percent EffectiveIncomeTaxRateReconciliationBankOwnedLifeInsurancePercent	0.001
CY2022Q1	fbk	Income Tax Reconciliation Nondeductible Income Share Based Compensation Cost IncomeTaxReconciliationNondeductibleIncomeShareBasedCompensationCost	122000	USD
CY2022Q1	fbk	Income Tax Reconciliation Nondeductible Income Share Based Compensation Cost Percent IncomeTaxReconciliationNondeductibleIncomeShareBasedCompensationCostPercent	0.003
CY2021Q1	fbk	Income Tax Reconciliation Nondeductible Income Share Based Compensation Cost IncomeTaxReconciliationNondeductibleIncomeShareBasedCompensationCost	227000	USD
CY2021Q1	fbk	Income Tax Reconciliation Nondeductible Income Share Based Compensation Cost Percent IncomeTaxReconciliationNondeductibleIncomeShareBasedCompensationCostPercent	0.003
CY2022Q1	us-gaap	Income Tax Reconciliation Other Reconciling Items IncomeTaxReconciliationOtherReconcilingItems	-306000	USD
CY2022Q1	us-gaap	Effective Income Tax Rate Reconciliation Other Reconciling Items Percent EffectiveIncomeTaxRateReconciliationOtherReconcilingItemsPercent	-0.006
CY2021Q1	us-gaap	Income Tax Reconciliation Other Reconciling Items IncomeTaxReconciliationOtherReconcilingItems	-37000	USD
CY2021Q1	us-gaap	Effective Income Tax Rate Reconciliation Other Reconciling Items Percent EffectiveIncomeTaxRateReconciliationOtherReconcilingItemsPercent	-0.001
CY2022Q1	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	9313000	USD
CY2022Q1	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.209
CY2021Q1	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	15588000	USD
CY2021Q1	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.228
CY2022Q1	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Provision For Loan Losses DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsProvisionForLoanLosses	34146000	USD
CY2021Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Provision For Loan Losses DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsProvisionForLoanLosses	35233000	USD
CY2022Q1	fbk	Deferred Tax Assets Operating Lease Liability DeferredTaxAssetsOperatingLeaseLiability	12251000	USD
CY2021Q4	fbk	Deferred Tax Assets Operating Lease Liability DeferredTaxAssetsOperatingLeaseLiability	12478000	USD
CY2022Q1	us-gaap	Deferred Tax Assets Operating Loss Carryforwards Domestic DeferredTaxAssetsOperatingLossCarryforwardsDomestic	3644000	USD
CY2021Q4	us-gaap	Deferred Tax Assets Operating Loss Carryforwards Domestic DeferredTaxAssetsOperatingLossCarryforwardsDomestic	1370000	USD
CY2022Q1	fbk	Deferred Tax Assets Amortization Of Core Deposit Intangible DeferredTaxAssetsAmortizationOfCoreDepositIntangible	53000	USD
CY2021Q4	fbk	Deferred Tax Assets Amortization Of Core Deposit Intangible DeferredTaxAssetsAmortizationOfCoreDepositIntangible	0	USD
CY2022Q1	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefits	2243000	USD
CY2021Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefits	5484000	USD
CY2022Q1	us-gaap	Deferred Tax Assets Unrealized Losses On Availablefor Sale Securities Gross DeferredTaxAssetsUnrealizedLossesOnAvailableforSaleSecuritiesGross	26158000	USD
CY2021Q4	us-gaap	Deferred Tax Assets Unrealized Losses On Availablefor Sale Securities Gross DeferredTaxAssetsUnrealizedLossesOnAvailableforSaleSecuritiesGross	0	USD
CY2022Q1	fbk	Deferred Tax Assets Unrealized Losses On Cash Flow Hedges DeferredTaxAssetsUnrealizedLossesOnCashFlowHedges	0	USD
CY2021Q4	fbk	Deferred Tax Assets Unrealized Losses On Cash Flow Hedges DeferredTaxAssetsUnrealizedLossesOnCashFlowHedges	205000	USD
CY2022Q1	us-gaap	Deferred Tax Assets Other DeferredTaxAssetsOther	7684000	USD
CY2021Q4	us-gaap	Deferred Tax Assets Other DeferredTaxAssetsOther	8301000	USD
CY2022Q1	us-gaap	Deferred Tax Assets Gross DeferredTaxAssetsGross	86179000	USD
CY2021Q4	us-gaap	Deferred Tax Assets Gross DeferredTaxAssetsGross	63071000	USD
CY2022Q1	fbk	Deferred Tax Liabilities Federal Home Loan Bank Stock Dividends DeferredTaxLiabilitiesFederalHomeLoanBankStockDividends	484000	USD
CY2021Q4	fbk	Deferred Tax Liabilities Federal Home Loan Bank Stock Dividends DeferredTaxLiabilitiesFederalHomeLoanBankStockDividends	484000	USD
CY2022Q1	fbk	Deferred Tax Liabilities Operating Lease Right Of Use Asset DeferredTaxLiabilitiesOperatingLeaseRightOfUseAsset	11111000	USD
CY2021Q4	fbk	Deferred Tax Liabilities Operating Lease Right Of Use Asset DeferredTaxLiabilitiesOperatingLeaseRightOfUseAsset	11287000	USD
CY2022Q1	us-gaap	Deferred Tax Liabilities Property Plant And Equipment DeferredTaxLiabilitiesPropertyPlantAndEquipment	7930000	USD
CY2021Q4	us-gaap	Deferred Tax Liabilities Property Plant And Equipment DeferredTaxLiabilitiesPropertyPlantAndEquipment	7938000	USD
CY2021Q4	fbk	Deferred Tax Liabilities Amortization Of Intangibles DeferredTaxLiabilitiesAmortizationOfIntangibles	116000	USD
CY2022Q1	us-gaap	Deferred Tax Liabilities Investments DeferredTaxLiabilitiesInvestments	2167000	USD
CY2021Q4	us-gaap	Deferred Tax Liabilities Investments DeferredTaxLiabilitiesInvestments	2407000	USD
CY2022Q1	us-gaap	Deferred Tax Liabilities Derivatives DeferredTaxLiabilitiesDerivatives	68000	USD
CY2021Q4	us-gaap	Deferred Tax Liabilities Derivatives DeferredTaxLiabilitiesDerivatives	0	USD
CY2022Q1	us-gaap	Deferred Tax Liabilities Unrealized Gains On Trading Securities DeferredTaxLiabilitiesUnrealizedGainsOnTradingSecurities	0	USD
CY2022Q1	fbk	Deferred Tax Liabilities Amortization Of Intangibles DeferredTaxLiabilitiesAmortizationOfIntangibles	0	USD
CY2021Q4	us-gaap	Deferred Tax Liabilities Unrealized Gains On Trading Securities DeferredTaxLiabilitiesUnrealizedGainsOnTradingSecurities	1324000	USD
CY2022Q1	us-gaap	Deferred Tax Liabilities Mortgage Servicing Rights DeferredTaxLiabilitiesMortgageServicingRights	37696000	USD
CY2021Q4	us-gaap	Deferred Tax Liabilities Mortgage Servicing Rights DeferredTaxLiabilitiesMortgageServicingRights	30098000	USD
CY2022Q1	us-gaap	Deferred Tax Liabilities Goodwill And Intangible Assets Goodwill DeferredTaxLiabilitiesGoodwillAndIntangibleAssetsGoodwill	14276000	USD
CY2021Q4	us-gaap	Deferred Tax Liabilities Goodwill And Intangible Assets Goodwill DeferredTaxLiabilitiesGoodwillAndIntangibleAssetsGoodwill	13743000	USD
CY2022Q1	us-gaap	Deferred Tax Liabilities Other DeferredTaxLiabilitiesOther	2699000	USD
CY2021Q4	us-gaap	Deferred Tax Liabilities Other DeferredTaxLiabilitiesOther	2494000	USD
CY2022Q1	us-gaap	Deferred Income Tax Liabilities DeferredIncomeTaxLiabilities	76431000	USD
CY2021Q4	us-gaap	Deferred Income Tax Liabilities DeferredIncomeTaxLiabilities	69891000	USD
CY2022Q1	us-gaap	Deferred Tax Assets Liabilities Net DeferredTaxAssetsLiabilitiesNet	9748000	USD
CY2021Q4	us-gaap	Deferred Tax Liabilities DeferredTaxLiabilities	6820000	USD
CY2022Q1	us-gaap	Fair Value Disclosure Offbalance Sheet Risks Face Amount Liability FairValueDisclosureOffbalanceSheetRisksFaceAmountLiability	3280427000	USD
CY2021Q4	us-gaap	Fair Value Disclosure Offbalance Sheet Risks Face Amount Liability FairValueDisclosureOffbalanceSheetRisksFaceAmountLiability	3184021000	USD
CY2022Q1	us-gaap	Loans And Leases Receivable Commitments Variable Rates LoansAndLeasesReceivableCommitmentsVariableRates	2400000000	USD
CY2021	us-gaap	Loans And Leases Receivable Commitments Variable Rates LoansAndLeasesReceivableCommitmentsVariableRates	2260000000	USD
CY2022Q1	fbk	Principal Amount Of Loans Repurchased Or Indemnified During Period PrincipalAmountOfLoansRepurchasedOrIndemnifiedDuringPeriod	1348000	USD
CY2021Q1	fbk	Principal Amount Of Loans Repurchased Or Indemnified During Period PrincipalAmountOfLoansRepurchasedOrIndemnifiedDuringPeriod	708000	USD
CY2021Q4	fbk	Allowance For Loan Repurchases Or Indemnifications AllowanceForLoanRepurchasesOrIndemnifications	4802000	USD
CY2020Q4	fbk	Allowance For Loan Repurchases Or Indemnifications AllowanceForLoanRepurchasesOrIndemnifications	5928000	USD
CY2022Q1	fbk	Provision For Mortgage Loan Repurchases Or Indemnifications ProvisionForMortgageLoanRepurchasesOrIndemnifications	-389000	USD
CY2021Q1	fbk	Provision For Mortgage Loan Repurchases Or Indemnifications ProvisionForMortgageLoanRepurchasesOrIndemnifications	440000	USD
CY2022Q1	fbk	Allowance For Loan Repurchases Or Indemnifications Losses On Loans Repurchased Or Indemnified AllowanceForLoanRepurchasesOrIndemnificationsLossesOnLoansRepurchasedOrIndemnified	96000	USD
CY2021Q1	fbk	Allowance For Loan Repurchases Or Indemnifications Losses On Loans Repurchased Or Indemnified AllowanceForLoanRepurchasesOrIndemnificationsLossesOnLoansRepurchasedOrIndemnified	84000	USD
CY2022Q1	fbk	Allowance For Loan Repurchases Or Indemnifications AllowanceForLoanRepurchasesOrIndemnifications	4317000	USD
CY2021Q1	fbk	Allowance For Loan Repurchases Or Indemnifications AllowanceForLoanRepurchasesOrIndemnifications	6284000	USD
CY2022Q1	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss Before Reclassification Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossBeforeReclassificationTax	273000	USD
CY2021Q1	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss Before Reclassification Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossBeforeReclassificationTax	112000	USD
CY2022Q1	fbk	Number Of Designated Fair Value Hedges NumberOfDesignatedFairValueHedges	3	instrument
CY2022Q1	us-gaap	Derivative Fair Value Of Derivative Liability Amount Offset Against Collateral DerivativeFairValueOfDerivativeLiabilityAmountOffsetAgainstCollateral	0	USD
CY2022Q1	us-gaap	Derivative Fair Value Of Derivative Asset DerivativeFairValueOfDerivativeAsset	18895000	USD
CY2021Q4	us-gaap	Derivative Fair Value Of Derivative Asset DerivativeFairValueOfDerivativeAsset	4990000	USD
CY2022Q1	us-gaap	Derivative Fair Value Of Derivative Liability DerivativeFairValueOfDerivativeLiability	12134000	USD
CY2021Q4	us-gaap	Derivative Fair Value Of Derivative Liability DerivativeFairValueOfDerivativeLiability	15733000	USD
CY2022Q1	us-gaap	Derivative Asset Fair Value Gross Liability DerivativeAssetFairValueGrossLiability	0	USD
CY2021Q4	us-gaap	Derivative Asset Fair Value Gross Liability DerivativeAssetFairValueGrossLiability	0	USD
CY2022Q1	us-gaap	Derivative Liability Fair Value Gross Asset DerivativeLiabilityFairValueGrossAsset	0	USD
CY2021Q4	us-gaap	Derivative Liability Fair Value Gross Asset DerivativeLiabilityFairValueGrossAsset	0	USD
CY2022Q1	us-gaap	Derivative Fair Value Of Derivative Asset Amount Not Offset Against Collateral DerivativeFairValueOfDerivativeAssetAmountNotOffsetAgainstCollateral	18895000	USD
CY2021Q4	us-gaap	Derivative Fair Value Of Derivative Asset Amount Not Offset Against Collateral DerivativeFairValueOfDerivativeAssetAmountNotOffsetAgainstCollateral	4990000	USD
CY2022Q1	us-gaap	Derivative Fair Value Of Derivative Liability Amount Not Offset Against Collateral DerivativeFairValueOfDerivativeLiabilityAmountNotOffsetAgainstCollateral	12134000	USD
CY2021Q4	us-gaap	Derivative Fair Value Of Derivative Liability Amount Not Offset Against Collateral DerivativeFairValueOfDerivativeLiabilityAmountNotOffsetAgainstCollateral	15733000	USD
CY2022Q1	us-gaap	Derivative Collateral Obligation To Return Securities DerivativeCollateralObligationToReturnSecurities	9681000	USD
CY2021Q4	us-gaap	Derivative Collateral Obligation To Return Securities DerivativeCollateralObligationToReturnSecurities	4297000	USD
CY2022Q1	us-gaap	Derivative Collateral Right To Reclaim Securities DerivativeCollateralRightToReclaimSecurities	9681000	USD
CY2021Q4	us-gaap	Derivative Collateral Right To Reclaim Securities DerivativeCollateralRightToReclaimSecurities	4297000	USD
CY2022Q1	us-gaap	Derivative Collateral Obligation To Return Cash DerivativeCollateralObligationToReturnCash	0	USD
CY2021Q4	us-gaap	Derivative Collateral Obligation To Return Cash DerivativeCollateralObligationToReturnCash	0	USD
CY2022Q1	us-gaap	Derivative Collateral Right To Reclaim Cash DerivativeCollateralRightToReclaimCash	2453000	USD
CY2022Q1	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	44549000	USD
CY2022Q1	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	9313000	USD
CY2021Q4	us-gaap	Derivative Collateral Right To Reclaim Cash DerivativeCollateralRightToReclaimCash	11436000	USD
CY2022Q1	us-gaap	Derivative Fair Value Of Derivative Asset Amount Offset Against Collateral DerivativeFairValueOfDerivativeAssetAmountOffsetAgainstCollateral	9214000	USD
CY2021Q4	us-gaap	Derivative Fair Value Of Derivative Asset Amount Offset Against Collateral DerivativeFairValueOfDerivativeAssetAmountOffsetAgainstCollateral	693000	USD
CY2022Q1	us-gaap	Derivative Fair Value Of Derivative Liability Amount Offset Against Collateral DerivativeFairValueOfDerivativeLiabilityAmountOffsetAgainstCollateral	0	USD
CY2021Q4	us-gaap	Derivative Fair Value Of Derivative Liability Amount Offset Against Collateral DerivativeFairValueOfDerivativeLiabilityAmountOffsetAgainstCollateral	0	USD
CY2022Q1	us-gaap	Collateral Already Posted Aggregate Fair Value CollateralAlreadyPostedAggregateFairValue	52221000	USD
CY2021Q4	us-gaap	Collateral Already Posted Aggregate Fair Value CollateralAlreadyPostedAggregateFairValue	57868000	USD
CY2022Q1	fbk	Percent Of Principal Balance Allowed To Buy Back Under Government National Mortgage Association Optional Repurchase Programs PercentOfPrincipalBalanceAllowedToBuyBackUnderGovernmentNationalMortgageAssociationOptionalRepurchasePrograms	1
CY2022Q1	us-gaap	Number Of Reportable Segments NumberOfReportableSegments	2	segment
CY2022Q1	fbk	Number Of Delivery Channels NumberOfDeliveryChannels	2	channel
CY2022Q1	fbk	Number Of Delivery Channels NumberOfDeliveryChannels	2	channel
CY2022Q1	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	88182000	USD
CY2022Q1	fbk	Financing Receivable And Unfunded Commitments Credit Loss Expense Reversal FinancingReceivableAndUnfundedCommitmentsCreditLossExpenseReversal	-4247000	USD
CY2022Q1	fbk	Fees And Commissions Mortgage Banking Before Adjustments FeesAndCommissionsMortgageBankingBeforeAdjustments	29278000	USD
CY2022Q1	fbk	Change In Fair Value Of Mortgage Servicing Rights And Hedging Instruments ChangeInFairValueOfMortgageServicingRightsAndHedgingInstruments	-253000	USD
CY2022Q1	us-gaap	Noninterest Income Other NoninterestIncomeOther	11861000	USD
CY2022Q1	us-gaap	Depreciation And Amortization DepreciationAndAmortization	2036000	USD
CY2022Q1	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	1244000	USD
CY2022Q1	us-gaap	Other Noninterest Expense OtherNoninterestExpense	85992000	USD
CY2022Q1	us-gaap	Profit Loss ProfitLoss	35236000	USD
CY2022Q1	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	0	USD
CY2022Q1	us-gaap	Net Income Loss NetIncomeLoss	35236000	USD
CY2022Q1	us-gaap	Assets Assets	12674191000	USD
CY2022Q1	us-gaap	Goodwill Goodwill	242561000	USD
CY2022Q1	fbk	Unfunded Commitments Credit Loss Expense Reversal UnfundedCommitmentsCreditLossExpenseReversal	1882000	USD
CY2021Q1	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	82576000	USD
CY2021Q1	fbk	Financing Receivable And Unfunded Commitments Credit Loss Expense Reversal FinancingReceivableAndUnfundedCommitmentsCreditLossExpenseReversal	-13854000	USD
CY2021Q1	fbk	Fees And Commissions Mortgage Banking Before Adjustments FeesAndCommissionsMortgageBankingBeforeAdjustments	60595000	USD
CY2021Q1	fbk	Change In Fair Value Of Mortgage Servicing Rights And Hedging Instruments ChangeInFairValueOfMortgageServicingRightsAndHedgingInstruments	5263000	USD
CY2021Q1	us-gaap	Noninterest Income Other NoninterestIncomeOther	11398000	USD
CY2021Q1	us-gaap	Depreciation And Amortization DepreciationAndAmortization	2056000	USD
CY2021Q1	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	1440000	USD
CY2021Q1	us-gaap	Other Noninterest Expense OtherNoninterestExpense	91202000	USD
CY2021Q1	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	68462000	USD
CY2021Q1	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	15588000	USD
CY2021Q1	us-gaap	Profit Loss ProfitLoss	52874000	USD
CY2021Q1	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	0	USD
CY2021Q1	us-gaap	Net Income Loss NetIncomeLoss	52874000	USD
CY2021Q1	us-gaap	Assets Assets	11935826000	USD
CY2021Q1	us-gaap	Goodwill Goodwill	242561000	USD
CY2021Q1	fbk	Unfunded Commitments Credit Loss Expense Reversal UnfundedCommitmentsCreditLossExpenseReversal	-2222000	USD
CY2022Q1	us-gaap	Proceeds From Stock Plans ProceedsFromStockPlans	588000	USD
CY2021Q1	us-gaap	Proceeds From Stock Plans ProceedsFromStockPlans	811000	USD
CY2022Q1	fbk	Loans And Leases Receivable Related Parties Changes In Related Party Status LoansAndLeasesReceivableRelatedPartiesChangesInRelatedPartyStatus	9037000	USD
CY2021Q4	us-gaap	Loans And Leases Receivable Related Parties LoansAndLeasesReceivableRelatedParties	29010000	USD
CY2022Q1	us-gaap	Loans And Leases Receivable Related Parties Additions LoansAndLeasesReceivableRelatedPartiesAdditions	39767000	USD
CY2022Q1	us-gaap	Loans And Leases Receivable Related Parties Proceeds LoansAndLeasesReceivableRelatedPartiesProceeds	192000	USD
CY2022Q1	us-gaap	Loans And Leases Receivable Related Parties LoansAndLeasesReceivableRelatedParties	59548000	USD
CY2022Q1	us-gaap	Related Party Deposit Liabilities RelatedPartyDepositLiabilities	308361000	USD
CY2021Q4	us-gaap	Related Party Deposit Liabilities RelatedPartyDepositLiabilities	312956000	USD

Files In Submission

Name	View Source	Status
R17.htm	Edgar Link	pending
0001649749-22-000095-index-headers.html	Edgar Link	pending
0001649749-22-000095-index.html	Edgar Link	pending
0001649749-22-000095.txt	Edgar Link	pending
0001649749-22-000095-xbrl.zip	Edgar Link	pending
a1q22ex-311.htm	Edgar Link	pending
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exhibit101.htm	Edgar Link	pending
fbk-20220331.htm	Edgar Link	pending
fbk-20220331.xsd	Edgar Link	pending
fbk-20220331_cal.xml	Edgar Link	unprocessable
fbk-20220331_def.xml	Edgar Link	unprocessable
fbk-20220331_htm.xml	Edgar Link	completed
fbk-20220331_lab.xml	Edgar Link	unprocessable
fbk-20220331_pre.xml	Edgar Link	unprocessable
FilingSummary.xml	Edgar Link	unprocessable
Financial_Report.xlsx	Edgar Link	pending
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2022 Q1 Form 10-Q Financial Statement

#000164974922000095 Filed on May 10, 2022

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$FBK FB Financial Corp Stock $fbk

2022 Q1 Form 10-Q Financial Statement

#000164974922000095 Filed on May 10, 2022

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$FBK
FB Financial Corp Stock $fbk