2020 Q4 Form 10-K Financial Statement
#000156459021012114 Filed on March 10, 2021
Income Statement
Concept | 2020 Q4 | 2019 Q4 | 2019 Q3 |
---|
Balance Sheet
Concept | 2020 Q4 | 2019 Q4 | 2019 Q3 |
---|---|---|---|
SHORT-TERM ASSETS | |||
Cash & Short-Term Investments | |||
YoY Change | |||
Cash & Equivalents | $422.8M | $346.2M | $300.6M |
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 | $70.69M | $66.79M | $67.20M |
YoY Change | 5.83% | 60.1% | 254.24% |
Goodwill | $223.6M | $223.6M | |
YoY Change | 0.0% | 0.23% | |
Intangibles | |||
YoY Change | |||
Long-Term Investments | |||
YoY Change | |||
Other Assets | |||
YoY Change | |||
Total Long-Term Assets | |||
YoY Change | |||
TOTAL ASSETS | |||
Total Short-Term Assets | |||
Total Long-Term Assets | |||
Total Assets | $6.050B | $4.993B | $4.906B |
YoY Change | 21.18% | 7.25% | 61.61% |
SHORT-TERM LIABILITIES | |||
YoY Change | |||
Accounts Payable | $2.700M | $4.300M | $4.900M |
YoY Change | -37.21% | 53.57% | 133.33% |
Accrued Expenses | $11.90M | $11.50M | $12.10M |
YoY Change | 3.48% | ||
Deferred Revenue | |||
YoY Change | |||
Short-Term Debt | |||
YoY Change | |||
Long-Term Debt Due | |||
YoY Change | |||
Total Short-Term Liabilities | $14.60M | $15.80M | $17.00M |
YoY Change | -7.59% | 464.29% | 709.52% |
LONG-TERM LIABILITIES | |||
Long-Term Debt | $263.8M | $183.3M | $267.3M |
YoY Change | 43.92% | -33.2% | 2.65% |
Other Long-Term Liabilities | $24.60M | $15.60M | $17.70M |
YoY Change | 57.69% | 24.8% | 59.46% |
Total Long-Term Liabilities | $288.4M | $198.9M | $285.0M |
YoY Change | 45.0% | -30.67% | 4.97% |
TOTAL LIABILITIES | |||
Total Short-Term Liabilities | $14.60M | $15.80M | $17.00M |
Total Long-Term Liabilities | $288.4M | $198.9M | $285.0M |
Total Liabilities | $5.291B | $4.283B | $4.200B |
YoY Change | 23.55% | 8.36% | 55.11% |
SHAREHOLDERS EQUITY | |||
Retained Earnings | $195.2M | $163.4M | |
YoY Change | 19.5% | 45.7% | |
Common Stock | $20.21M | $20.52M | |
YoY Change | -1.54% | -6.45% | |
Preferred Stock | |||
YoY Change | |||
Treasury Stock (at cost) | |||
YoY Change | |||
Treasury Stock Shares | |||
Shareholders Equity | $758.7M | $709.9M | $706.3M |
YoY Change | |||
Total Liabilities & Shareholders Equity | $6.050B | $4.993B | $4.906B |
YoY Change | 21.18% | 7.25% | 61.61% |
Cashflow Statement
Concept | 2020 Q4 | 2019 Q4 | 2019 Q3 |
---|
Facts In Submission
Frame | Concept Type | Concept / XBRL Key | Value | Unit |
---|---|---|---|---|
CY2020 | us-gaap |
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Interest Receivable
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Real Estate Acquired Through Foreclosure
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Federal Home Loan Bank Stock
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Bank Owned Life Insurance
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Goodwill
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CY2020 | abtx |
Accretion Amortization Of Discounts And Premiums Subordinated Debt
AccretionAmortizationOfDiscountsAndPremiumsSubordinatedDebt
|
-113000 | |
CY2019 | abtx |
Accretion Amortization Of Discounts And Premiums Subordinated Debt
AccretionAmortizationOfDiscountsAndPremiumsSubordinatedDebt
|
-111000 | |
CY2018 | abtx |
Accretion Amortization Of Discounts And Premiums Subordinated Debt
AccretionAmortizationOfDiscountsAndPremiumsSubordinatedDebt
|
-110000 | |
CY2020 | abtx |
Accretion Amortization Of Discounts And Premiums Certificates Of Deposit
AccretionAmortizationOfDiscountsAndPremiumsCertificatesOfDeposit
|
356000 | |
CY2019 | abtx |
Accretion Amortization Of Discounts And Premiums Certificates Of Deposit
AccretionAmortizationOfDiscountsAndPremiumsCertificatesOfDeposit
|
772000 | |
CY2018 | abtx |
Accretion Amortization Of Discounts And Premiums Certificates Of Deposit
AccretionAmortizationOfDiscountsAndPremiumsCertificatesOfDeposit
|
367000 | |
CY2020 | us-gaap |
Gain Loss On Disposition Of Assets1
GainLossOnDispositionOfAssets1
|
-4323000 | |
CY2019 | us-gaap |
Gain Loss On Disposition Of Assets1
GainLossOnDispositionOfAssets1
|
26000 | |
CY2018 | us-gaap |
Gain Loss On Disposition Of Assets1
GainLossOnDispositionOfAssets1
|
-428000 | |
CY2020 | us-gaap |
Debt And Equity Securities Gain Loss
DebtAndEquitySecuritiesGainLoss
|
287000 | |
CY2019 | us-gaap |
Debt And Equity Securities Gain Loss
DebtAndEquitySecuritiesGainLoss
|
1459000 | |
CY2020 | abtx |
Federal Home Loan Bank Stock Dividends
FederalHomeLoanBankStockDividends
|
192000 | |
CY2019 | abtx |
Federal Home Loan Bank Stock Dividends
FederalHomeLoanBankStockDividends
|
403000 | |
CY2018 | abtx |
Federal Home Loan Bank Stock Dividends
FederalHomeLoanBankStockDividends
|
396000 | |
CY2020 | us-gaap |
Share Based Compensation
ShareBasedCompensation
|
3425000 | |
CY2019 | us-gaap |
Share Based Compensation
ShareBasedCompensation
|
3100000 | |
CY2018 | us-gaap |
Share Based Compensation
ShareBasedCompensation
|
1685000 | |
CY2020 | abtx |
Increase Decrease In Operating Leases
IncreaseDecreaseInOperatingLeases
|
2627000 | |
CY2019 | abtx |
Increase Decrease In Operating Leases
IncreaseDecreaseInOperatingLeases
|
2097000 | |
CY2020 | abtx |
Increase Decrease In Accrued Interest Receivable And Other Assets
IncreaseDecreaseInAccruedInterestReceivableAndOtherAssets
|
24964000 | |
CY2019 | abtx |
Increase Decrease In Accrued Interest Receivable And Other Assets
IncreaseDecreaseInAccruedInterestReceivableAndOtherAssets
|
111000 | |
CY2018 | abtx |
Increase Decrease In Accrued Interest Receivable And Other Assets
IncreaseDecreaseInAccruedInterestReceivableAndOtherAssets
|
2136000 | |
CY2020 | us-gaap |
Increase Decrease In Accrued Liabilities And Other Operating Liabilities
IncreaseDecreaseInAccruedLiabilitiesAndOtherOperatingLiabilities
|
2395000 | |
CY2019 | us-gaap |
Increase Decrease In Accrued Liabilities And Other Operating Liabilities
IncreaseDecreaseInAccruedLiabilitiesAndOtherOperatingLiabilities
|
3053000 | |
CY2018 | us-gaap |
Increase Decrease In Accrued Liabilities And Other Operating Liabilities
IncreaseDecreaseInAccruedLiabilitiesAndOtherOperatingLiabilities
|
1822000 | |
CY2020 | us-gaap |
Net Cash Provided By Used In Operating Activities
NetCashProvidedByUsedInOperatingActivities
|
61063000 | |
CY2019 | us-gaap |
Net Cash Provided By Used In Operating Activities
NetCashProvidedByUsedInOperatingActivities
|
66867000 | |
CY2018 | us-gaap |
Net Cash Provided By Used In Operating Activities
NetCashProvidedByUsedInOperatingActivities
|
46059000 | |
CY2020 | us-gaap |
Proceeds From Maturities Prepayments And Calls Of Available For Sale Securities
ProceedsFromMaturitiesPrepaymentsAndCallsOfAvailableForSaleSecurities
|
3959259000 | |
CY2019 | us-gaap |
Proceeds From Maturities Prepayments And Calls Of Available For Sale Securities
ProceedsFromMaturitiesPrepaymentsAndCallsOfAvailableForSaleSecurities
|
3462495000 | |
CY2018 | us-gaap |
Proceeds From Maturities Prepayments And Calls Of Available For Sale Securities
ProceedsFromMaturitiesPrepaymentsAndCallsOfAvailableForSaleSecurities
|
2328864000 | |
CY2020 | abtx |
Proceeds From Sales And Calls Of Available For Sale Securities
ProceedsFromSalesAndCallsOfAvailableForSaleSecurities
|
38106000 | |
CY2019 | abtx |
Proceeds From Sales And Calls Of Available For Sale Securities
ProceedsFromSalesAndCallsOfAvailableForSaleSecurities
|
173024000 | |
CY2018 | abtx |
Proceeds From Sales And Calls Of Available For Sale Securities
ProceedsFromSalesAndCallsOfAvailableForSaleSecurities
|
12701000 | |
CY2020 | us-gaap |
Payments To Acquire Available For Sale Securities Debt
PaymentsToAcquireAvailableForSaleSecuritiesDebt
|
4362521000 | |
CY2019 | us-gaap |
Payments To Acquire Available For Sale Securities Debt
PaymentsToAcquireAvailableForSaleSecuritiesDebt
|
3663770000 | |
CY2018 | us-gaap |
Payments To Acquire Available For Sale Securities Debt
PaymentsToAcquireAvailableForSaleSecuritiesDebt
|
2334149000 | |
CY2020 | us-gaap |
Payments For Proceeds From Loans And Leases
PaymentsForProceedsFromLoansAndLeases
|
591471000 | |
CY2019 | us-gaap |
Payments For Proceeds From Loans And Leases
PaymentsForProceedsFromLoansAndLeases
|
165984000 | |
CY2018 | us-gaap |
Payments For Proceeds From Loans And Leases
PaymentsForProceedsFromLoansAndLeases
|
270314000 | |
CY2020 | us-gaap |
Payments To Acquire Property Plant And Equipment
PaymentsToAcquirePropertyPlantAndEquipment
|
7182000 | |
CY2019 | us-gaap |
Payments To Acquire Property Plant And Equipment
PaymentsToAcquirePropertyPlantAndEquipment
|
13385000 | |
CY2018 | us-gaap |
Payments To Acquire Property Plant And Equipment
PaymentsToAcquirePropertyPlantAndEquipment
|
3419000 | |
CY2020 | us-gaap |
Proceeds From Sale Of Property Plant And Equipment
ProceedsFromSaleOfPropertyPlantAndEquipment
|
4027000 | |
CY2019 | us-gaap |
Proceeds From Sale Of Property Plant And Equipment
ProceedsFromSaleOfPropertyPlantAndEquipment
|
1871000 | |
CY2019 | us-gaap |
Payments To Acquire Businesses Net Of Cash Acquired
PaymentsToAcquireBusinessesNetOfCashAcquired
|
32867000 | |
CY2018 | us-gaap |
Cash Acquired From Acquisition
CashAcquiredFromAcquisition
|
230416000 | |
CY2019 | us-gaap |
Net Cash Provided By Used In Investing Activities
NetCashProvidedByUsedInInvestingActivities
|
-233514000 | |
CY2018 | us-gaap |
Net Cash Provided By Used In Investing Activities
NetCashProvidedByUsedInInvestingActivities
|
-31155000 | |
CY2020 | us-gaap |
Net Change Noninterest Bearing Deposits Domestic
NetChangeNoninterestBearingDepositsDomestic
|
452335000 | |
CY2019 | us-gaap |
Net Change Noninterest Bearing Deposits Domestic
NetChangeNoninterestBearingDepositsDomestic
|
29052000 | |
CY2018 | us-gaap |
Net Change Noninterest Bearing Deposits Domestic
NetChangeNoninterestBearingDepositsDomestic
|
93053000 | |
CY2020 | us-gaap |
Net Change Interest Bearing Deposits Domestic
NetChangeInterestBearingDepositsDomestic
|
468402000 | |
CY2019 | us-gaap |
Net Change Interest Bearing Deposits Domestic
NetChangeInterestBearingDepositsDomestic
|
361536000 | |
CY2018 | us-gaap |
Net Change Interest Bearing Deposits Domestic
NetChangeInterestBearingDepositsDomestic
|
64566000 | |
CY2020 | us-gaap |
Proceeds From Repayments Of Other Debt
ProceedsFromRepaymentsOfOtherDebt
|
65000000 | |
CY2019 | us-gaap |
Proceeds From Repayments Of Other Debt
ProceedsFromRepaymentsOfOtherDebt
|
-149990000 | |
CY2018 | us-gaap |
Proceeds From Repayments Of Other Debt
ProceedsFromRepaymentsOfOtherDebt
|
-87076000 | |
CY2020 | us-gaap |
Proceeds From Lines Of Credit
ProceedsFromLinesOfCredit
|
15000000 | |
CY2019 | us-gaap |
Proceeds From Issuance Of Subordinated Long Term Debt
ProceedsFromIssuanceOfSubordinatedLongTermDebt
|
58601000 | |
CY2020 | us-gaap |
Payments Of Dividends Common Stock
PaymentsOfDividendsCommonStock
|
8165000 | |
CY2020 | us-gaap |
Proceeds From Issuance Of Shares Under Incentive And Share Based Compensation Plans Including Stock Options
ProceedsFromIssuanceOfSharesUnderIncentiveAndShareBasedCompensationPlansIncludingStockOptions
|
2569000 | |
CY2019 | us-gaap |
Proceeds From Issuance Of Shares Under Incentive And Share Based Compensation Plans Including Stock Options
ProceedsFromIssuanceOfSharesUnderIncentiveAndShareBasedCompensationPlansIncludingStockOptions
|
3412000 | |
CY2018 | us-gaap |
Proceeds From Issuance Of Shares Under Incentive And Share Based Compensation Plans Including Stock Options
ProceedsFromIssuanceOfSharesUnderIncentiveAndShareBasedCompensationPlansIncludingStockOptions
|
3750000 | |
CY2018 | us-gaap |
Payments Of Merger Related Costs Financing Activities
PaymentsOfMergerRelatedCostsFinancingActivities
|
21000 | |
CY2018 | abtx |
Payments Of Stock Issuance Costs Related To Business Combination
PaymentsOfStockIssuanceCostsRelatedToBusinessCombination
|
220000 | |
CY2020 | us-gaap |
Payments For Repurchase Of Common Stock
PaymentsForRepurchaseOfCommonStock
|
18582000 | |
CY2019 | us-gaap |
Payments For Repurchase Of Common Stock
PaymentsForRepurchaseOfCommonStock
|
58663000 | |
CY2018 | us-gaap |
Payments For Repurchase Of Common Stock
PaymentsForRepurchaseOfCommonStock
|
2112000 | |
CY2020 | us-gaap |
Net Cash Provided By Used In Financing Activities
NetCashProvidedByUsedInFinancingActivities
|
976559000 | |
CY2019 | us-gaap |
Net Cash Provided By Used In Financing Activities
NetCashProvidedByUsedInFinancingActivities
|
243948000 | |
CY2018 | us-gaap |
Net Cash Provided By Used In Financing Activities
NetCashProvidedByUsedInFinancingActivities
|
71940000 | |
CY2020 | us-gaap |
Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect
CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect
|
76518000 | |
CY2019 | us-gaap |
Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect
CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect
|
77301000 | |
CY2018 | us-gaap |
Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect
CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect
|
86844000 | |
CY2018Q4 | us-gaap |
Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Including Disposal Group And Discontinued Operations
CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations
|
268947000 | |
CY2020Q4 | us-gaap |
Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Including Disposal Group And Discontinued Operations
CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations
|
422766000 | |
CY2020 | abtx |
Other Real Estate Transferred To Loans
OtherRealEstateTransferredToLoans
|
2379000 | |
CY2019Q4 | us-gaap |
Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Including Disposal Group And Discontinued Operations
CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations
|
346248000 | |
CY2019Q4 | us-gaap |
Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Including Disposal Group And Discontinued Operations
CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations
|
346248000 | |
CY2018Q4 | us-gaap |
Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Including Disposal Group And Discontinued Operations
CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations
|
268947000 | |
CY2017Q4 | us-gaap |
Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Including Disposal Group And Discontinued Operations
CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations
|
182103000 | |
CY2020 | us-gaap |
Income Taxes Paid
IncomeTaxesPaid
|
15100000 | |
CY2019 | us-gaap |
Income Taxes Paid
IncomeTaxesPaid
|
15400000 | |
CY2018 | us-gaap |
Income Taxes Paid
IncomeTaxesPaid
|
6650000 | |
CY2020 | us-gaap |
Interest Paid Net
InterestPaidNet
|
40704000 | |
CY2019 | us-gaap |
Interest Paid Net
InterestPaidNet
|
51856000 | |
CY2018 | us-gaap |
Interest Paid Net
InterestPaidNet
|
27442000 | |
CY2020 | us-gaap |
Operating Lease Payments
OperatingLeasePayments
|
3282000 | |
CY2019 | us-gaap |
Operating Lease Payments
OperatingLeasePayments
|
3543000 | |
CY2020 | us-gaap |
Right Of Use Asset Obtained In Exchange For Operating Lease Liability
RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability
|
3056000 | |
CY2019 | us-gaap |
Right Of Use Asset Obtained In Exchange For Operating Lease Liability
RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability
|
13277000 | |
CY2020 | abtx |
Loans Transferred To Other Real Estate
LoansTransferredToOtherRealEstate
|
9209000 | |
CY2019 | abtx |
Loans Transferred To Other Real Estate
LoansTransferredToOtherRealEstate
|
7707000 | |
CY2018 | abtx |
Loans Transferred To Other Real Estate
LoansTransferredToOtherRealEstate
|
265000 | |
CY2020Q4 | abtx |
Number Of Offices In Which Entity Operates
NumberOfOfficesInWhichEntityOperates
|
28 | |
CY2020 | us-gaap |
Use Of Estimates
UseOfEstimates
|
<p style="margin-top:12pt;margin-bottom:0pt;text-indent:6.67%;font-weight:bold;font-family:Times New Roman;font-size:10pt;font-style:normal;text-transform:none;font-variant: normal;">Use of Estimates—<span style="font-weight:normal;">The preparation of financial statements in conformity with GAAP requires management to make estimates and assumptions based on available information. These estimates and assumptions affect the reporting of assets and liabilities and disclosure of contingent assets and liabilities at the date of the financial statements and the reported amounts of revenues and expenses during the reporting period. Actual results could differ from those estimates.</span></p> | |
CY2020Q4 | us-gaap |
Loans And Leases Receivable Impaired Nonperforming Accrual Of Interest
LoansAndLeasesReceivableImpairedNonperformingAccrualOfInterest
|
34500000 | |
CY2020Q4 | abtx |
Debt Securities Available For Sale Accrued Interest Receivable
DebtSecuritiesAvailableForSaleAccruedInterestReceivable
|
5500000 | |
CY2020Q4 | us-gaap |
Other Real Estate
OtherRealEstate
|
9200000 | |
CY2020 | abtx |
Percentage Of Tax Benefit Realized Upon Ultimate Settlement With Taxing Authority
PercentageOfTaxBenefitRealizedUponUltimateSettlementWithTaxingAuthority
|
0.50 | |
CY2020 | us-gaap |
Number Of Reportable Segments
NumberOfReportableSegments
|
1 | |
CY2020 | us-gaap |
Prior Period Reclassification Adjustment Description
PriorPeriodReclassificationAdjustmentDescription
|
<p style="margin-top:12pt;margin-bottom:0pt;text-indent:6.67%;font-weight:bold;font-family:Times New Roman;font-size:10pt;font-style:normal;text-transform:none;font-variant: normal;">Reclassifications<span style="font-weight:normal;">—Some items in the prior year financial statements were reclassified to conform to the current presentation. Reclassifications had no effect on prior year net income or shareholders’ equity.</span></p> | |
CY2020Q1 | us-gaap |
Loans And Leases Receivable Allowance
LoansAndLeasesReceivableAllowance
|
34663000 | |
CY2020Q1 | us-gaap |
Off Balance Sheet Credit Loss Liability
OffBalanceSheetCreditLossLiability
|
3866000 | |
CY2018Q4 | abtx |
Business Combination Loans Receivable Discount
BusinessCombinationLoansReceivableDiscount
|
16950000 | |
CY2017Q4 | us-gaap |
Goodwill
Goodwill
|
39389000 | |
CY2018Q4 | us-gaap |
Goodwill
Goodwill
|
223125000 | |
CY2019 | us-gaap |
Goodwill Purchase Accounting Adjustments
GoodwillPurchaseAccountingAdjustments
|
-61000 | |
CY2019Q4 | us-gaap |
Goodwill
Goodwill
|
223642000 | |
CY2020Q4 | us-gaap |
Goodwill
Goodwill
|
223642000 | |
CY2020 | us-gaap |
Number Of Reporting Units
NumberOfReportingUnits
|
1 | |
CY2020 | abtx |
Goodwill Impairment Triggering Event
GoodwillImpairmentTriggeringEvent
|
No triggering event occurred during the fourth quarter of 2020 that required an updated goodwill impairment analysis at December 31, 2020. | |
CY2020Q4 | us-gaap |
Finite Lived Intangible Assets Amortization Expense Next Twelve Months
FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths
|
3296000 | |
CY2020Q4 | us-gaap |
Finite Lived Intangible Assets Amortization Expense Year Two
FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo
|
3003000 | |
CY2020Q4 | us-gaap |
Finite Lived Intangible Assets Amortization Expense Year Three
FiniteLivedIntangibleAssetsAmortizationExpenseYearThree
|
2323000 | |
CY2020Q4 | us-gaap |
Finite Lived Intangible Assets Amortization Expense Year Four
FiniteLivedIntangibleAssetsAmortizationExpenseYearFour
|
2188000 | |
CY2020Q4 | us-gaap |
Available For Sale Debt Securities Amortized Cost Basis
AvailableForSaleDebtSecuritiesAmortizedCostBasis
|
728043000 | |
CY2020Q4 | us-gaap |
Available For Sale Debt Securities Accumulated Gross Unrealized Gain Before Tax
AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax
|
45177000 | |
CY2020Q4 | us-gaap |
Available For Sale Debt Securities Accumulated Gross Unrealized Loss Before Tax
AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax
|
330000 | |
CY2020Q4 | us-gaap |
Available For Sale Securities Debt Securities
AvailableForSaleSecuritiesDebtSecurities
|
772890000 | |
CY2019Q4 | us-gaap |
Available For Sale Debt Securities Amortized Cost Basis
AvailableForSaleDebtSecuritiesAmortizedCostBasis
|
366331000 | |
CY2019Q4 | us-gaap |
Available For Sale Debt Securities Accumulated Gross Unrealized Gain Before Tax
AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax
|
7009000 | |
CY2019Q4 | us-gaap |
Available For Sale Debt Securities Accumulated Gross Unrealized Loss Before Tax
AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax
|
795000 | |
CY2019Q4 | us-gaap |
Available For Sale Securities Debt Securities
AvailableForSaleSecuritiesDebtSecurities
|
372545000 | |
CY2020Q4 | us-gaap |
Debt Securities Available For Sale Allowance For Credit Loss
DebtSecuritiesAvailableForSaleAllowanceForCreditLoss
|
0 | |
CY2020Q4 | us-gaap |
Finite Lived Intangible Assets Amortization Expense Year Five
FiniteLivedIntangibleAssetsAmortizationExpenseYearFive
|
2061000 | |
CY2020Q4 | us-gaap |
Finite Lived Intangible Assets Amortization Expense After Year Five
FiniteLivedIntangibleAssetsAmortizationExpenseAfterYearFive
|
5083000 | |
CY2020Q4 | us-gaap |
Finite Lived Intangible Assets Net
FiniteLivedIntangibleAssetsNet
|
17954000 | |
CY2020Q4 | us-gaap |
Available For Sale Securities Debt Maturities Within One Year Amortized Cost
AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearAmortizedCost
|
110000 | |
CY2020Q4 | us-gaap |
Available For Sale Securities Debt Maturities Within One Year Fair Value
AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearFairValue
|
110000 | |
CY2020Q4 | us-gaap |
Available For Sale Securities Debt Maturities After One Through Five Years Amortized Cost
AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughFiveYearsAmortizedCost
|
12849000 | |
CY2020Q4 | us-gaap |
Available For Sale Securities Debt Maturities After One Through Five Years Fair Value
AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughFiveYearsFairValue
|
13412000 | |
CY2020Q4 | us-gaap |
Available For Sale Securities Debt Maturities After Five Through Ten Years Amortized Cost
AvailableForSaleSecuritiesDebtMaturitiesAfterFiveThroughTenYearsAmortizedCost
|
105239000 | |
CY2020Q4 | us-gaap |
Available For Sale Securities Debt Maturities After Five Through Ten Years Fair Value
AvailableForSaleSecuritiesDebtMaturitiesAfterFiveThroughTenYearsFairValue
|
109238000 | |
CY2020Q4 | us-gaap |
Available For Sale Securities Debt Maturities After Ten Years Amortized Cost
AvailableForSaleSecuritiesDebtMaturitiesAfterTenYearsAmortizedCost
|
362057000 | |
CY2020Q4 | us-gaap |
Available For Sale Securities Debt Maturities After Ten Years Fair Value
AvailableForSaleSecuritiesDebtMaturitiesAfterTenYearsFairValue
|
394471000 | |
CY2020Q4 | us-gaap |
Available For Sale Securities Debt Maturities Single Maturity Date Amortized Cost Basis
AvailableForSaleSecuritiesDebtMaturitiesSingleMaturityDateAmortizedCostBasis
|
480255000 | |
CY2020Q4 | us-gaap |
Available For Sale Securities Debt Maturities Single Maturity Date
AvailableForSaleSecuritiesDebtMaturitiesSingleMaturityDate
|
517231000 | |
CY2020Q4 | us-gaap |
Available For Sale Securities Debt Maturities Without Single Maturity Date Amortized Cost
AvailableForSaleSecuritiesDebtMaturitiesWithoutSingleMaturityDateAmortizedCost
|
247788000 | |
CY2020Q4 | us-gaap |
Available For Sale Securities Debt Maturities Without Single Maturity Date Fair Value
AvailableForSaleSecuritiesDebtMaturitiesWithoutSingleMaturityDateFairValue
|
255659000 | |
CY2020Q4 | us-gaap |
Available For Sale Debt Securities Amortized Cost Basis
AvailableForSaleDebtSecuritiesAmortizedCostBasis
|
728043000 | |
CY2020Q4 | us-gaap |
Available For Sale Securities Debt Securities
AvailableForSaleSecuritiesDebtSecurities
|
772890000 | |
CY2020Q4 | us-gaap |
Debt Securities Available For Sale Continuous Unrealized Loss Position Less Than12 Months
DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12Months
|
65083000 | |
CY2020Q4 | us-gaap |
Debt Securities Available For Sale Continuous Unrealized Loss Position Less Than12 Months Accumulated Loss
DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12MonthsAccumulatedLoss
|
294000 | |
CY2020Q4 | us-gaap |
Debt Securities Available For Sale Continuous Unrealized Loss Position12 Months Or Longer
DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLonger
|
4203000 | |
CY2020Q4 | us-gaap |
Debt Securities Available For Sale Continuous Unrealized Loss Position12 Months Or Longer Accumulated Loss
DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLongerAccumulatedLoss
|
36000 | |
CY2020Q4 | us-gaap |
Debt Securities Available For Sale Unrealized Loss Position
DebtSecuritiesAvailableForSaleUnrealizedLossPosition
|
69286000 | |
CY2020Q4 | us-gaap |
Debt Securities Available For Sale Unrealized Loss Position Accumulated Loss
DebtSecuritiesAvailableForSaleUnrealizedLossPositionAccumulatedLoss
|
330000 | |
CY2019Q4 | us-gaap |
Debt Securities Available For Sale Continuous Unrealized Loss Position Less Than12 Months
DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12Months
|
80433000 | |
CY2019Q4 | us-gaap |
Debt Securities Available For Sale Continuous Unrealized Loss Position Less Than12 Months Accumulated Loss
DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12MonthsAccumulatedLoss
|
732000 | |
CY2019Q4 | us-gaap |
Debt Securities Available For Sale Continuous Unrealized Loss Position12 Months Or Longer
DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLonger
|
4805000 | |
CY2019Q4 | us-gaap |
Debt Securities Available For Sale Continuous Unrealized Loss Position12 Months Or Longer Accumulated Loss
DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLongerAccumulatedLoss
|
63000 | |
CY2019Q4 | us-gaap |
Debt Securities Available For Sale Unrealized Loss Position
DebtSecuritiesAvailableForSaleUnrealizedLossPosition
|
85238000 | |
CY2019Q4 | us-gaap |
Debt Securities Available For Sale Unrealized Loss Position Accumulated Loss
DebtSecuritiesAvailableForSaleUnrealizedLossPositionAccumulatedLoss
|
795000 | |
CY2020Q4 | us-gaap |
Proceeds From Sale Of Available For Sale Securities Debt
ProceedsFromSaleOfAvailableForSaleSecuritiesDebt
|
30800000 | |
CY2020Q4 | abtx |
Proceeds From Maturities Calls Of Available For Sale Securities
ProceedsFromMaturitiesCallsOfAvailableForSaleSecurities
|
7300000 | |
CY2020Q4 | us-gaap |
Available For Sale Securities Gross Realized Gains
AvailableForSaleSecuritiesGrossRealizedGains
|
391000 | |
CY2020Q4 | us-gaap |
Available For Sale Securities Gross Realized Losses
AvailableForSaleSecuritiesGrossRealizedLosses
|
104000 | |
CY2020Q4 | us-gaap |
Available For Sale Securities Gross Realized Gain Loss Net
AvailableForSaleSecuritiesGrossRealizedGainLossNet
|
287000 | |
CY2020 | us-gaap |
Proceeds From Sale Of Available For Sale Securities Debt
ProceedsFromSaleOfAvailableForSaleSecuritiesDebt
|
173000000.0 | |
CY2020 | us-gaap |
Available For Sale Securities Gross Realized Gains
AvailableForSaleSecuritiesGrossRealizedGains
|
2100000 | |
CY2020 | us-gaap |
Available For Sale Securities Gross Realized Losses
AvailableForSaleSecuritiesGrossRealizedLosses
|
596000 | |
CY2020 | us-gaap |
Available For Sale Securities Gross Realized Gain Loss Net
AvailableForSaleSecuritiesGrossRealizedGainLossNet
|
1500000 | |
CY2020Q4 | us-gaap |
Security Owned And Pledged As Collateral Fair Value
SecurityOwnedAndPledgedAsCollateralFairValue
|
18500000 | |
CY2019Q4 | us-gaap |
Security Owned And Pledged As Collateral Fair Value
SecurityOwnedAndPledgedAsCollateralFairValue
|
24300000 | |
CY2020Q4 | us-gaap |
Loans And Leases Receivable Gross Carrying Amount
LoansAndLeasesReceivableGrossCarryingAmount
|
4491764000 | |
CY2019Q4 | us-gaap |
Loans And Leases Receivable Gross Carrying Amount
LoansAndLeasesReceivableGrossCarryingAmount
|
3915310000 | |
CY2020Q4 | us-gaap |
Loans And Leases Receivable Allowance
LoansAndLeasesReceivableAllowance
|
53173000 | |
CY2019Q4 | us-gaap |
Loans And Leases Receivable Allowance
LoansAndLeasesReceivableAllowance
|
29438000 | |
CY2020Q4 | us-gaap |
Loans And Leases Receivable Net Reported Amount
LoansAndLeasesReceivableNetReportedAmount
|
4438591000 | |
CY2019Q4 | us-gaap |
Loans And Leases Receivable Net Reported Amount
LoansAndLeasesReceivableNetReportedAmount
|
3885872000 | |
CY2020Q4 | abtx |
Owner Occupied Loans To Commercial Real Estate Loans
OwnerOccupiedLoansToCommercialRealEstateLoans
|
0.546 | |
CY2020 | abtx |
Loans Amount To Appraised Value
LoansAmountToAppraisedValue
|
0.90 | |
CY2020Q4 | us-gaap |
Loans And Leases Receivable Related Parties
LoansAndLeasesReceivableRelatedParties
|
1200000 | |
CY2019Q4 | us-gaap |
Loans And Leases Receivable Related Parties
LoansAndLeasesReceivableRelatedParties
|
6800000 | |
CY2019Q4 | us-gaap |
Loans And Leases Receivable Related Parties
LoansAndLeasesReceivableRelatedParties
|
6782000 | |
CY2020 | us-gaap |
Loans And Leases Receivable Related Parties Additions
LoansAndLeasesReceivableRelatedPartiesAdditions
|
90000 | |
CY2020 | us-gaap |
Loans And Leases Receivable Related Parties Proceeds
LoansAndLeasesReceivableRelatedPartiesProceeds
|
5689000 | |
CY2020Q4 | us-gaap |
Loans And Leases Receivable Related Parties
LoansAndLeasesReceivableRelatedParties
|
1183000 | |
CY2020Q4 | us-gaap |
Loans And Leases Receivable Impaired Nonperforming Accrual Of Interest
LoansAndLeasesReceivableImpairedNonperformingAccrualOfInterest
|
34500000 | |
CY2019Q4 | us-gaap |
Loans And Leases Receivable Impaired Nonperforming Accrual Of Interest
LoansAndLeasesReceivableImpairedNonperformingAccrualOfInterest
|
15500000 | |
CY2020Q4 | us-gaap |
Financing Receivable Recorded Investment Past Due
FinancingReceivableRecordedInvestmentPastDue
|
11525000 | |
CY2020Q4 | us-gaap |
Financing Receivable Recorded Investment Nonaccrual Status
FinancingReceivableRecordedInvestmentNonaccrualStatus
|
28893000 | |
CY2020Q4 | us-gaap |
Financing Receivable Recorded Investment Current
FinancingReceivableRecordedInvestmentCurrent
|
4451346000 | |
CY2020Q4 | us-gaap |
Loans And Leases Receivable Gross Carrying Amount
LoansAndLeasesReceivableGrossCarryingAmount
|
4491764000 | |
CY2019Q4 | us-gaap |
Financing Receivable Recorded Investment Past Due
FinancingReceivableRecordedInvestmentPastDue
|
10001000 | |
CY2019Q4 | us-gaap |
Financing Receivable Recorded Investment Nonaccrual Status
FinancingReceivableRecordedInvestmentNonaccrualStatus
|
28371000 | |
CY2019Q4 | us-gaap |
Financing Receivable Recorded Investment Current
FinancingReceivableRecordedInvestmentCurrent
|
3876938000 | |
CY2019Q4 | us-gaap |
Loans And Leases Receivable Gross Carrying Amount
LoansAndLeasesReceivableGrossCarryingAmount
|
3915310000 | |
CY2019 | us-gaap |
Loans And Leases Receivable Impaired Interest Lost On Nonaccrual Loans
LoansAndLeasesReceivableImpairedInterestLostOnNonaccrualLoans
|
902500000 | |
CY2018 | us-gaap |
Loans And Leases Receivable Impaired Interest Lost On Nonaccrual Loans
LoansAndLeasesReceivableImpairedInterestLostOnNonaccrualLoans
|
1200000 | |
CY2020Q4 | us-gaap |
Financing Receivable Originated In Current Fiscal Year
FinancingReceivableOriginatedInCurrentFiscalYear
|
1915431000 | |
CY2020Q4 | us-gaap |
Financing Receivable Originated Two Years Before Latest Fiscal Year
FinancingReceivableOriginatedTwoYearsBeforeLatestFiscalYear
|
755769000 | |
CY2020Q4 | us-gaap |
Financing Receivable Originated Three Years Before Latest Fiscal Year
FinancingReceivableOriginatedThreeYearsBeforeLatestFiscalYear
|
490038000 | |
CY2020Q4 | us-gaap |
Financing Receivable Originated Four Years Before Latest Fiscal Year
FinancingReceivableOriginatedFourYearsBeforeLatestFiscalYear
|
421839000 | |
CY2020Q4 | us-gaap |
Financing Receivable Originated Five Or More Years Before Latest Fiscal Year
FinancingReceivableOriginatedFiveOrMoreYearsBeforeLatestFiscalYear
|
302293000 | |
CY2020Q4 | us-gaap |
Financing Receivable Originated In Fiscal Year Before Latest Fiscal Year
FinancingReceivableOriginatedInFiscalYearBeforeLatestFiscalYear
|
169731000 | |
CY2020Q4 | us-gaap |
Financing Receivable Revolving
FinancingReceivableRevolving
|
436663000 | |
CY2020Q4 | us-gaap |
Financing Receivable After Deferred Income Offset
FinancingReceivableAfterDeferredIncomeOffset
|
4491764000 | |
CY2019Q4 | us-gaap |
Financing Receivable After Deferred Income Offset
FinancingReceivableAfterDeferredIncomeOffset
|
3915310000 | |
CY2020Q4 | us-gaap |
Loans And Leases Receivable Allowance
LoansAndLeasesReceivableAllowance
|
53173000 | |
CY2019Q4 | us-gaap |
Loans And Leases Receivable Allowance
LoansAndLeasesReceivableAllowance
|
29438000 | |
CY2020 | us-gaap |
Provision For Loan Losses Expensed
ProvisionForLoanLossesExpensed
|
26543000 | |
CY2020 | us-gaap |
Allowance For Loan And Lease Losses Write Offs
AllowanceForLoanAndLeaseLossesWriteOffs
|
8583000 | |
CY2020 | us-gaap |
Allowance For Loan And Lease Loss Recovery Of Bad Debts
AllowanceForLoanAndLeaseLossRecoveryOfBadDebts
|
550000 | |
CY2020 | us-gaap |
Allowance For Loan And Lease Losses Writeoffs Net
AllowanceForLoanAndLeaseLossesWriteoffsNet
|
8033000 | |
CY2018Q4 | us-gaap |
Loans And Leases Receivable Allowance
LoansAndLeasesReceivableAllowance
|
26331000 | |
CY2019 | us-gaap |
Provision For Loan Losses Expensed
ProvisionForLoanLossesExpensed
|
5939000 | |
CY2019 | us-gaap |
Allowance For Loan And Lease Losses Write Offs
AllowanceForLoanAndLeaseLossesWriteOffs
|
3141000 | |
CY2019 | us-gaap |
Allowance For Loan And Lease Loss Recovery Of Bad Debts
AllowanceForLoanAndLeaseLossRecoveryOfBadDebts
|
309000 | |
CY2019 | us-gaap |
Allowance For Loan And Lease Losses Writeoffs Net
AllowanceForLoanAndLeaseLossesWriteoffsNet
|
2832000 | |
CY2019Q4 | us-gaap |
Loans And Leases Receivable Allowance
LoansAndLeasesReceivableAllowance
|
29438000 | |
CY2017Q4 | us-gaap |
Loans And Leases Receivable Allowance
LoansAndLeasesReceivableAllowance
|
23649000 | |
CY2018 | us-gaap |
Provision For Loan Losses Expensed
ProvisionForLoanLossesExpensed
|
4248000 | |
CY2018 | us-gaap |
Allowance For Loan And Lease Losses Write Offs
AllowanceForLoanAndLeaseLossesWriteOffs
|
2515000 | |
CY2018 | us-gaap |
Allowance For Loan And Lease Loss Recovery Of Bad Debts
AllowanceForLoanAndLeaseLossRecoveryOfBadDebts
|
949000 | |
CY2018 | us-gaap |
Allowance For Loan And Lease Losses Writeoffs Net
AllowanceForLoanAndLeaseLossesWriteoffsNet
|
1566000 | |
CY2018Q4 | us-gaap |
Loans And Leases Receivable Allowance
LoansAndLeasesReceivableAllowance
|
26331000 | |
CY2020Q4 | us-gaap |
Financing Receivable Allowance For Credit Losses
FinancingReceivableAllowanceForCreditLosses
|
8683000 | |
CY2020Q4 | abtx |
Nonaccrual Loans With No Related Allowance
NonaccrualLoansWithNoRelatedAllowance
|
15194000 | |
CY2020Q4 | abtx |
Nonaccrual Loans With Related Allowance
NonaccrualLoansWithRelatedAllowance
|
13699000 | |
CY2020Q4 | us-gaap |
Financing Receivable Recorded Investment Nonaccrual Status
FinancingReceivableRecordedInvestmentNonaccrualStatus
|
28893000 | |
CY2019Q4 | us-gaap |
Impaired Financing Receivable With No Related Allowance Recorded Investment
ImpairedFinancingReceivableWithNoRelatedAllowanceRecordedInvestment
|
27445000 | |
CY2019Q4 | us-gaap |
Impaired Financing Receivable With No Related Allowance Unpaid Principal Balance
ImpairedFinancingReceivableWithNoRelatedAllowanceUnpaidPrincipalBalance
|
27940000 | |
CY2019Q4 | us-gaap |
Impaired Financing Receivable With Related Allowance Recorded Investment
ImpairedFinancingReceivableWithRelatedAllowanceRecordedInvestment
|
27891000 | |
CY2019Q4 | us-gaap |
Impaired Financing Receivable With Related Allowance Unpaid Principal Balance
ImpairedFinancingReceivableWithRelatedAllowanceUnpaidPrincipalBalance
|
28285000 | |
CY2019Q4 | us-gaap |
Impaired Financing Receivable Related Allowance
ImpairedFinancingReceivableRelatedAllowance
|
6775000 | |
CY2019Q4 | us-gaap |
Impaired Financing Receivable Recorded Investment
ImpairedFinancingReceivableRecordedInvestment
|
55336000 | |
CY2019Q4 | us-gaap |
Impaired Financing Receivable Unpaid Principal Balance
ImpairedFinancingReceivableUnpaidPrincipalBalance
|
56225000 | |
CY2019Q4 | us-gaap |
Impaired Financing Receivable Related Allowance
ImpairedFinancingReceivableRelatedAllowance
|
6775000 | |
CY2019 | us-gaap |
Impaired Financing Receivable Average Recorded Investment
ImpairedFinancingReceivableAverageRecordedInvestment
|
55343000 | |
CY2019 | us-gaap |
Impaired Financing Receivable Interest Income Accrual Method
ImpairedFinancingReceivableInterestIncomeAccrualMethod
|
1088000 | |
CY2020Q4 | us-gaap |
Financing Receivable Modifications Recorded Investment
FinancingReceivableModificationsRecordedInvestment
|
25800000 | |
CY2019Q4 | us-gaap |
Financing Receivable Modifications Recorded Investment
FinancingReceivableModificationsRecordedInvestment
|
28900000 | |
CY2020Q4 | abtx |
Allowance For Credit Losses Change In Method Of Calculating Impairment1
AllowanceForCreditLossesChangeInMethodOfCalculatingImpairment1
|
3300000 | |
CY2019Q4 | abtx |
Allowance For Credit Losses Change In Method Of Calculating Impairment1
AllowanceForCreditLossesChangeInMethodOfCalculatingImpairment1
|
3200000 | |
CY2020 | us-gaap |
Financing Receivable Modifications Number Of Contracts2
FinancingReceivableModificationsNumberOfContracts2
|
32 | |
CY2020 | us-gaap |
Financing Receivable Modifications Pre Modification Recorded Investment2
FinancingReceivableModificationsPreModificationRecordedInvestment2
|
11804000 | |
CY2020 | us-gaap |
Financing Receivable Modifications Post Modification Recorded Investment2
FinancingReceivableModificationsPostModificationRecordedInvestment2
|
11804000 | |
CY2019 | us-gaap |
Financing Receivable Modifications Number Of Contracts2
FinancingReceivableModificationsNumberOfContracts2
|
17 | |
CY2019 | us-gaap |
Financing Receivable Modifications Pre Modification Recorded Investment2
FinancingReceivableModificationsPreModificationRecordedInvestment2
|
5100000 | |
CY2019 | us-gaap |
Financing Receivable Modifications Post Modification Recorded Investment2
FinancingReceivableModificationsPostModificationRecordedInvestment2
|
5100000 | |
CY2018 | us-gaap |
Financing Receivable Modifications Number Of Contracts2
FinancingReceivableModificationsNumberOfContracts2
|
15 | |
CY2018 | us-gaap |
Financing Receivable Modifications Pre Modification Recorded Investment2
FinancingReceivableModificationsPreModificationRecordedInvestment2
|
10172000 | |
CY2018 | us-gaap |
Financing Receivable Modifications Post Modification Recorded Investment2
FinancingReceivableModificationsPostModificationRecordedInvestment2
|
10172000 | |
CY2020 | us-gaap |
Financing Receivables Impaired Troubled Debt Restructuring Write Down
FinancingReceivablesImpairedTroubledDebtRestructuringWriteDown
|
3200 | |
CY2019 | us-gaap |
Financing Receivables Impaired Troubled Debt Restructuring Write Down
FinancingReceivablesImpairedTroubledDebtRestructuringWriteDown
|
251000 | |
CY2018 | us-gaap |
Financing Receivables Impaired Troubled Debt Restructuring Write Down
FinancingReceivablesImpairedTroubledDebtRestructuringWriteDown
|
272000 | |
CY2020 | us-gaap |
Financing Receivable Modifications Subsequent Default Number Of Contracts1
FinancingReceivableModificationsSubsequentDefaultNumberOfContracts1
|
4 | |
CY2020 | us-gaap |
Financing Receivable Modifications Subsequent Default Recorded Investment1
FinancingReceivableModificationsSubsequentDefaultRecordedInvestment1
|
2600000 | |
CY2019 | us-gaap |
Financing Receivable Modifications Subsequent Default Number Of Contracts1
FinancingReceivableModificationsSubsequentDefaultNumberOfContracts1
|
5 | |
CY2019 | us-gaap |
Financing Receivable Modifications Subsequent Default Recorded Investment1
FinancingReceivableModificationsSubsequentDefaultRecordedInvestment1
|
472000 | |
CY2020 | us-gaap |
Financing Receivable Modifications Post Modification Recorded Investment2
FinancingReceivableModificationsPostModificationRecordedInvestment2
|
11800000 | |
CY2019 | us-gaap |
Financing Receivable Modifications Post Modification Recorded Investment2
FinancingReceivableModificationsPostModificationRecordedInvestment2
|
5100000 | |
CY2020Q4 | us-gaap |
Loans And Leases Receivable Gross Carrying Amount
LoansAndLeasesReceivableGrossCarryingAmount
|
4491764000 | |
CY2020Q4 | us-gaap |
Property Plant And Equipment Gross
PropertyPlantAndEquipmentGross
|
87318000 | |
CY2019Q4 | us-gaap |
Property Plant And Equipment Gross
PropertyPlantAndEquipmentGross
|
80303000 | |
CY2020Q4 | us-gaap |
Accumulated Depreciation Depletion And Amortization Property Plant And Equipment
AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment
|
16633000 | |
CY2019Q4 | us-gaap |
Accumulated Depreciation Depletion And Amortization Property Plant And Equipment
AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment
|
13513000 | |
CY2020Q4 | us-gaap |
Property Plant And Equipment Net
PropertyPlantAndEquipmentNet
|
70685000 | |
CY2019Q4 | us-gaap |
Property Plant And Equipment Net
PropertyPlantAndEquipmentNet
|
66790000 | |
CY2020 | us-gaap |
Depreciation
Depreciation
|
3700000 | |
CY2019 | us-gaap |
Depreciation
Depreciation
|
3200000 | |
CY2020 | abtx |
Number Of Leased Branch Locations And Office Space Along With Equipment
NumberOfLeasedBranchLocationsAndOfficeSpaceAlongWithEquipment
|
14 | |
CY2020Q4 | us-gaap |
Operating Lease Right Of Use Asset
OperatingLeaseRightOfUseAsset
|
11610000 | |
CY2019Q4 | us-gaap |
Operating Lease Right Of Use Asset
OperatingLeaseRightOfUseAsset
|
11180000 | |
CY2020Q4 | us-gaap |
Operating Lease Liability
OperatingLeaseLiability
|
11850000 | |
CY2020Q4 | us-gaap |
Operating Lease Weighted Average Discount Rate Percent
OperatingLeaseWeightedAverageDiscountRatePercent
|
0.0286 | |
CY2019Q4 | us-gaap |
Operating Lease Weighted Average Discount Rate Percent
OperatingLeaseWeightedAverageDiscountRatePercent
|
0.0319 | |
CY2019Q4 | us-gaap |
Operating Lease Liability
OperatingLeaseLiability
|
11477000 | |
CY2019Q4 | us-gaap |
Lessee Operating Lease Liability Payments Due Year Two
LesseeOperatingLeaseLiabilityPaymentsDueYearTwo
|
2608000 | |
CY2020Q4 | us-gaap |
Lessee Operating Lease Liability Payments Due Year Three
LesseeOperatingLeaseLiabilityPaymentsDueYearThree
|
2056000 | |
CY2019Q4 | us-gaap |
Lessee Operating Lease Liability Payments Due Year Three
LesseeOperatingLeaseLiabilityPaymentsDueYearThree
|
2204000 | |
CY2020Q4 | us-gaap |
Lessee Operating Lease Liability Payments Due Year Four
LesseeOperatingLeaseLiabilityPaymentsDueYearFour
|
1591000 | |
CY2019Q4 | us-gaap |
Lessee Operating Lease Liability Payments Due Year Four
LesseeOperatingLeaseLiabilityPaymentsDueYearFour
|
1596000 | |
CY2020Q4 | us-gaap |
Lessee Operating Lease Liability Payments Due Year Five
LesseeOperatingLeaseLiabilityPaymentsDueYearFive
|
1057000 | |
CY2019Q4 | us-gaap |
Lessee Operating Lease Liability Payments Due Year Five
LesseeOperatingLeaseLiabilityPaymentsDueYearFive
|
1131000 | |
CY2020 | us-gaap |
Operating Lease Cost
OperatingLeaseCost
|
3270000 | |
CY2019 | us-gaap |
Operating Lease Cost
OperatingLeaseCost
|
3073000 | |
CY2020 | us-gaap |
Short Term Lease Cost
ShortTermLeaseCost
|
78000 | |
CY2019 | us-gaap |
Short Term Lease Cost
ShortTermLeaseCost
|
553000 | |
CY2020 | us-gaap |
Sublease Income
SubleaseIncome
|
66000 | |
CY2019 | us-gaap |
Sublease Income
SubleaseIncome
|
72000 | |
CY2020 | us-gaap |
Lease Cost
LeaseCost
|
3282000 | |
CY2019 | us-gaap |
Lease Cost
LeaseCost
|
3554000 | |
CY2020Q4 | us-gaap |
Lessee Operating Lease Liability Payments Due Next Twelve Months
LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths
|
3068000 | |
CY2019Q4 | us-gaap |
Lessee Operating Lease Liability Payments Due Next Twelve Months
LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths
|
2867000 | |
CY2020Q4 | us-gaap |
Lessee Operating Lease Liability Payments Due Year Two
LesseeOperatingLeaseLiabilityPaymentsDueYearTwo
|
2664000 | |
CY2020Q4 | us-gaap |
Lessee Operating Lease Liability Payments Due After Year Five
LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive
|
2355000 | |
CY2019Q4 | us-gaap |
Lessee Operating Lease Liability Payments Due After Year Five
LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive
|
2162000 | |
CY2020Q4 | us-gaap |
Lessee Operating Lease Liability Payments Due
LesseeOperatingLeaseLiabilityPaymentsDue
|
12791000 | |
CY2019Q4 | us-gaap |
Lessee Operating Lease Liability Payments Due
LesseeOperatingLeaseLiabilityPaymentsDue
|
12568000 | |
CY2020Q4 | us-gaap |
Lessee Operating Lease Liability Undiscounted Excess Amount
LesseeOperatingLeaseLiabilityUndiscountedExcessAmount
|
941000 | |
CY2019Q4 | us-gaap |
Lessee Operating Lease Liability Undiscounted Excess Amount
LesseeOperatingLeaseLiabilityUndiscountedExcessAmount
|
1091000 | |
CY2020Q4 | us-gaap |
Operating Lease Liability
OperatingLeaseLiability
|
11850000 | |
CY2019Q4 | us-gaap |
Operating Lease Liability
OperatingLeaseLiability
|
11477000 | |
CY2020Q4 | us-gaap |
Time Deposits At Or Above Fdic Insurance Limit
TimeDepositsAtOrAboveFDICInsuranceLimit
|
250000 | |
CY2020Q4 | abtx |
Time Deposits250000 Or More
TimeDeposits250000OrMore
|
726800000 | |
CY2019Q4 | abtx |
Time Deposits250000 Or More
TimeDeposits250000OrMore
|
485800000 | |
CY2020Q4 | us-gaap |
Time Deposit Maturities Year Four
TimeDepositMaturitiesYearFour
|
39782000 | |
CY2020Q4 | us-gaap |
Time Deposit Maturities Year Five
TimeDepositMaturitiesYearFive
|
28251000 | |
CY2020Q4 | us-gaap |
Time Deposits
TimeDeposits
|
1346649000 | |
CY2020Q4 | us-gaap |
Time Deposit Maturities Year Two
TimeDepositMaturitiesYearTwo
|
313154000 | |
CY2020Q4 | us-gaap |
Time Deposit Maturities Year Three
TimeDepositMaturitiesYearThree
|
92863000 | |
CY2020Q4 | us-gaap |
Time Deposit Maturities Year One
TimeDepositMaturitiesYearOne
|
872599000 | |
CY2020Q4 | us-gaap |
Interest Bearing Domestic Deposit Brokered
InterestBearingDomesticDepositBrokered
|
453800000 | |
CY2019Q4 | us-gaap |
Interest Bearing Domestic Deposit Brokered
InterestBearingDomesticDepositBrokered
|
263500000 | |
CY2020Q4 | us-gaap |
Related Party Deposit Liabilities
RelatedPartyDepositLiabilities
|
9200000 | |
CY2019Q4 | us-gaap |
Related Party Deposit Liabilities
RelatedPartyDepositLiabilities
|
9200000 | |
CY2020Q4 | us-gaap |
Long Term Debt Maturities Repayments Of Principal In Next Twelve Months
LongTermDebtMaturitiesRepaymentsOfPrincipalInNextTwelveMonths
|
0 | |
CY2020Q4 | us-gaap |
Long Term Debt Maturities Repayments Of Principal In Year Two
LongTermDebtMaturitiesRepaymentsOfPrincipalInYearTwo
|
0 | |
CY2020Q4 | us-gaap |
Long Term Debt Maturities Repayments Of Principal In Year Three
LongTermDebtMaturitiesRepaymentsOfPrincipalInYearThree
|
0 | |
CY2020Q4 | us-gaap |
Long Term Debt Maturities Repayments Of Principal In Year Four
LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFour
|
569000 | |
CY2020Q4 | abtx |
Long Term Debt Maturities Repayments Of Principal After Year Four
LongTermDebtMaturitiesRepaymentsOfPrincipalAfterYearFour
|
15000000 | |
CY2020Q4 | us-gaap |
Long Term Debt
LongTermDebt
|
15569000 | |
CY2020Q4 | us-gaap |
Junior Subordinated Debenture Owed To Unconsolidated Subsidiary Trust
JuniorSubordinatedDebentureOwedToUnconsolidatedSubsidiaryTrust
|
11341000 | |
CY2020 | us-gaap |
Current Federal Tax Expense Benefit
CurrentFederalTaxExpenseBenefit
|
17527000 | |
CY2019 | us-gaap |
Current Federal Tax Expense Benefit
CurrentFederalTaxExpenseBenefit
|
13514000 | |
CY2018 | us-gaap |
Current Federal Tax Expense Benefit
CurrentFederalTaxExpenseBenefit
|
8204000 | |
CY2020 | us-gaap |
Deferred Federal Income Tax Expense Benefit
DeferredFederalIncomeTaxExpenseBenefit
|
-7090000 | |
CY2019 | us-gaap |
Deferred Federal Income Tax Expense Benefit
DeferredFederalIncomeTaxExpenseBenefit
|
-87000 | |
CY2018 | us-gaap |
Deferred Federal Income Tax Expense Benefit
DeferredFederalIncomeTaxExpenseBenefit
|
-256000 | |
CY2020 | us-gaap |
Federal Income Tax Expense Benefit Continuing Operations
FederalIncomeTaxExpenseBenefitContinuingOperations
|
10437000 | |
CY2019 | us-gaap |
Federal Income Tax Expense Benefit Continuing Operations
FederalIncomeTaxExpenseBenefitContinuingOperations
|
13427000 | |
CY2018 | us-gaap |
Federal Income Tax Expense Benefit Continuing Operations
FederalIncomeTaxExpenseBenefitContinuingOperations
|
7948000 | |
CY2020 | us-gaap |
Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate
IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate
|
11754000 | |
CY2019 | us-gaap |
Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate
IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate
|
13940000 | |
CY2018 | us-gaap |
Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate
IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate
|
9504000 | |
CY2020 | us-gaap |
Income Tax Reconciliation Nondeductible Expense Share Based Compensation Cost
IncomeTaxReconciliationNondeductibleExpenseShareBasedCompensationCost
|
136000 | |
CY2019 | us-gaap |
Income Tax Reconciliation Nondeductible Expense Share Based Compensation Cost
IncomeTaxReconciliationNondeductibleExpenseShareBasedCompensationCost
|
-11000 | |
CY2018 | us-gaap |
Income Tax Reconciliation Nondeductible Expense Share Based Compensation Cost
IncomeTaxReconciliationNondeductibleExpenseShareBasedCompensationCost
|
-400000 | |
CY2020 | us-gaap |
Income Tax Reconciliation Tax Exempt Income
IncomeTaxReconciliationTaxExemptIncome
|
1475000 | |
CY2019 | us-gaap |
Income Tax Reconciliation Tax Exempt Income
IncomeTaxReconciliationTaxExemptIncome
|
698000 | |
CY2018 | us-gaap |
Income Tax Reconciliation Tax Exempt Income
IncomeTaxReconciliationTaxExemptIncome
|
1284000 | |
CY2020 | us-gaap |
Income Tax Reconciliation Other Adjustments
IncomeTaxReconciliationOtherAdjustments
|
22000 | |
CY2019 | us-gaap |
Income Tax Reconciliation Other Adjustments
IncomeTaxReconciliationOtherAdjustments
|
196000 | |
CY2018 | us-gaap |
Income Tax Reconciliation Other Adjustments
IncomeTaxReconciliationOtherAdjustments
|
128000 | |
CY2020 | us-gaap |
Income Tax Expense Benefit
IncomeTaxExpenseBenefit
|
10437000 | |
CY2019 | us-gaap |
Income Tax Expense Benefit
IncomeTaxExpenseBenefit
|
13427000 | |
CY2018 | us-gaap |
Income Tax Expense Benefit
IncomeTaxExpenseBenefit
|
7948000 | |
CY2020 | us-gaap |
Effective Income Tax Rate Reconciliation Share Based Compensation Excess Tax Benefit Amount
EffectiveIncomeTaxRateReconciliationShareBasedCompensationExcessTaxBenefitAmount
|
-136000 | |
CY2019 | us-gaap |
Effective Income Tax Rate Reconciliation Share Based Compensation Excess Tax Benefit Amount
EffectiveIncomeTaxRateReconciliationShareBasedCompensationExcessTaxBenefitAmount
|
11000 | |
CY2018 | us-gaap |
Effective Income Tax Rate Reconciliation Share Based Compensation Excess Tax Benefit Amount
EffectiveIncomeTaxRateReconciliationShareBasedCompensationExcessTaxBenefitAmount
|
400000 | |
CY2019 | us-gaap |
Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate
EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate
|
0.21 | |
CY2020 | us-gaap |
Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate
EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate
|
0.21 | |
CY2020Q4 | us-gaap |
Deferred Tax Assets Tax Deferred Expense Reserves And Accruals
DeferredTaxAssetsTaxDeferredExpenseReservesAndAccruals
|
12590000 | |
CY2019Q4 | us-gaap |
Deferred Tax Assets Tax Deferred Expense Reserves And Accruals
DeferredTaxAssetsTaxDeferredExpenseReservesAndAccruals
|
6432000 | |
CY2020Q4 | abtx |
Deferred Tax Assets Deferred Loan Fees
DeferredTaxAssetsDeferredLoanFees
|
3164000 | |
CY2020Q4 | us-gaap |
Deferred Tax Assets Tax Deferred Expense Compensation And Benefits
DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefits
|
655000 | |
CY2019Q4 | us-gaap |
Deferred Tax Assets Tax Deferred Expense Compensation And Benefits
DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefits
|
855000 | |
CY2020Q4 | us-gaap |
Deferred Tax Assets Hedging Transactions
DeferredTaxAssetsHedgingTransactions
|
263000 | |
CY2020Q4 | us-gaap |
Deferred Tax Assets Tax Deferred Expense Other
DeferredTaxAssetsTaxDeferredExpenseOther
|
342000 | |
CY2020Q4 | us-gaap |
Deferred Tax Assets Gross
DeferredTaxAssetsGross
|
17014000 | |
CY2019Q4 | us-gaap |
Deferred Tax Assets Gross
DeferredTaxAssetsGross
|
7287000 | |
CY2020Q4 | us-gaap |
Deferred Tax Liabilities Goodwill And Intangible Assets Intangible Assets
DeferredTaxLiabilitiesGoodwillAndIntangibleAssetsIntangibleAssets
|
3964000 | |
CY2019Q4 | us-gaap |
Deferred Tax Liabilities Goodwill And Intangible Assets Intangible Assets
DeferredTaxLiabilitiesGoodwillAndIntangibleAssetsIntangibleAssets
|
3591000 | |
CY2020Q4 | us-gaap |
Deferred Tax Liabilities Investments
DeferredTaxLiabilitiesInvestments
|
9417000 | |
CY2019Q4 | us-gaap |
Deferred Tax Liabilities Investments
DeferredTaxLiabilitiesInvestments
|
1307000 | |
CY2020Q4 | us-gaap |
Deferred Tax Liabilities Property Plant And Equipment
DeferredTaxLiabilitiesPropertyPlantAndEquipment
|
2573000 | |
CY2020Q4 | us-gaap |
Deferred Tax Assets Liabilities Net
DeferredTaxAssetsLiabilitiesNet
|
1060000 | |
CY2019Q4 | us-gaap |
Deferred Tax Assets Liabilities Net
DeferredTaxAssetsLiabilitiesNet
|
290000 | |
CY2019Q4 | us-gaap |
Deferred Income Tax Liabilities
DeferredIncomeTaxLiabilities
|
6997000 | |
CY2019Q4 | us-gaap |
Deferred Tax Liabilities Property Plant And Equipment
DeferredTaxLiabilitiesPropertyPlantAndEquipment
|
2099000 | |
CY2020Q4 | us-gaap |
Deferred Income Tax Liabilities
DeferredIncomeTaxLiabilities
|
15954000 | |
CY2018Q4 | us-gaap |
Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number
ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber
|
802000 | |
CY2019Q4 | us-gaap |
Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number
ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber
|
616000 | |
CY2019Q4 | us-gaap |
Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Exercise Price
ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice
|
19.90 | |
CY2019Q4 | us-gaap |
Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Intrinsic Value
ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue
|
10904000 | |
CY2020 | us-gaap |
Stock Issued During Period Shares Stock Options Exercised
StockIssuedDuringPeriodSharesStockOptionsExercised
|
141000 | |
CY2020 | us-gaap |
Share Based Compensation Arrangements By Share Based Payment Award Options Exercises In Period Weighted Average Exercise Price
ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice
|
15.72 | |
CY2020 | us-gaap |
Share Based Compensation Arrangement By Share Based Payment Award Options Forfeitures In Period
ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresInPeriod
|
6000 | |
CY2020 | us-gaap |
Share Based Compensation Arrangements By Share Based Payment Award Options Forfeitures In Period Weighted Average Exercise Price
ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsForfeituresInPeriodWeightedAverageExercisePrice
|
20.36 | |
CY2020Q4 | us-gaap |
Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number
ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber
|
469000 | |
CY2020 | us-gaap |
Unrecognized Tax Benefits Income Tax Penalties And Interest Expense
UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestExpense
|
0 | |
CY2019 | us-gaap |
Unrecognized Tax Benefits Income Tax Penalties And Interest Expense
UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestExpense
|
0 | |
CY2018 | us-gaap |
Unrecognized Tax Benefits Income Tax Penalties And Interest Expense
UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestExpense
|
0 | |
CY2020Q4 | us-gaap |
Share Based Compensation Arrangement By Share Based Payment Award Number Of Shares Authorized
ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAuthorized
|
3200000 | |
CY2020 | us-gaap |
Allocated Share Based Compensation Expense
AllocatedShareBasedCompensationExpense
|
3400000 | |
CY2019 | us-gaap |
Allocated Share Based Compensation Expense
AllocatedShareBasedCompensationExpense
|
3100000 | |
CY2018 | us-gaap |
Allocated Share Based Compensation Expense
AllocatedShareBasedCompensationExpense
|
1700000 | |
CY2018Q4 | us-gaap |
Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Exercise Price
ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice
|
18.88 | |
CY2018Q4 | us-gaap |
Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Intrinsic Value
ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue
|
10830000 | |
CY2019 | us-gaap |
Stock Issued During Period Shares Stock Options Exercised
StockIssuedDuringPeriodSharesStockOptionsExercised
|
179000 | |
CY2019 | us-gaap |
Share Based Compensation Arrangements By Share Based Payment Award Options Exercises In Period Weighted Average Exercise Price
ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice
|
15.16 | |
CY2019 | us-gaap |
Share Based Compensation Arrangement By Share Based Payment Award Options Forfeitures In Period
ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresInPeriod
|
7000 | |
CY2019 | us-gaap |
Share Based Compensation Arrangements By Share Based Payment Award Options Forfeitures In Period Weighted Average Exercise Price
ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsForfeituresInPeriodWeightedAverageExercisePrice
|
24.18 | |
CY2020Q4 | us-gaap |
Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Exercise Price
ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice
|
21.08 | |
CY2020Q4 | us-gaap |
Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Intrinsic Value
ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue
|
6118000 | |
CY2020Q4 | us-gaap |
Share Based Compensation Arrangement By Share Based Payment Award Options Exercisable Number
ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber
|
455000 | |
CY2020Q4 | us-gaap |
Share Based Compensation Arrangement By Share Based Payment Award Options Exercisable Weighted Average Exercise Price
ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice
|
20.58 | |
CY2020Q4 | us-gaap |
Sharebased Compensation Arrangement By Sharebased Payment Award Options Exercisable Intrinsic Value1
SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableIntrinsicValue1
|
6164000 | |
CY2020Q4 | abtx |
Offbalance Sheet Financial Instrument Fixed Rate Contractual Amount
OffbalanceSheetFinancialInstrumentFixedRateContractualAmount
|
771190000 | |
CY2020Q4 | abtx |
Offbalance Sheet Financial Instrument Variable Rate Contractual Amount
OffbalanceSheetFinancialInstrumentVariableRateContractualAmount
|
488070000 | |
CY2019Q4 | abtx |
Offbalance Sheet Financial Instrument Fixed Rate Contractual Amount
OffbalanceSheetFinancialInstrumentFixedRateContractualAmount
|
518254000 | |
CY2019Q4 | abtx |
Offbalance Sheet Financial Instrument Variable Rate Contractual Amount
OffbalanceSheetFinancialInstrumentVariableRateContractualAmount
|
535779000 | |
CY2020 | abtx |
Commitments To Make Loans Period
CommitmentsToMakeLoansPeriod
|
P120D | |
CY2020 | abtx |
Off Balance Sheet Fixed Rate Loan Commitments Weighted Average Maturity
OffBalanceSheetFixedRateLoanCommitmentsWeightedAverageMaturity
|
P3Y6M10D | |
CY2020Q4 | us-gaap |
Capital
Capital
|
642155000 | |
CY2020Q4 | us-gaap |
Capital To Risk Weighted Assets
CapitalToRiskWeightedAssets
|
0.1571 | |
CY2020Q4 | us-gaap |
Capital Required For Capital Adequacy
CapitalRequiredForCapitalAdequacy
|
327084000 | |
CY2020Q4 | us-gaap |
Capital Required For Capital Adequacy To Risk Weighted Assets
CapitalRequiredForCapitalAdequacyToRiskWeightedAssets
|
0.0800 | |
CY2020Q4 | us-gaap |
Excess Capital
ExcessCapital
|
429298000 | |
CY2020Q4 | us-gaap |
Excess Capital To Risk Weighted Assets
ExcessCapitalToRiskWeightedAssets
|
0.1050 | |
CY2020Q4 | abtx |
Common Equity Tier One Risk Based Capital
CommonEquityTierOneRiskBasedCapital
|
482643000 | |
CY2020Q4 | abtx |
Common Equity Tier One Risk Based Capital To Risk Weighted Assets
CommonEquityTierOneRiskBasedCapitalToRiskWeightedAssets
|
0.1180 | |
CY2020Q4 | abtx |
Common Equity Tier One Risk Based Capital Required For Capital Adequacy
CommonEquityTierOneRiskBasedCapitalRequiredForCapitalAdequacy
|
183985000 | |
CY2020Q4 | abtx |
Common Equity Tier One Risk Based Capital Required For Capital Adequacy To Risk Weighted
CommonEquityTierOneRiskBasedCapitalRequiredForCapitalAdequacyToRiskWeighted
|
0.0450 | |
CY2020Q4 | abtx |
Excess Common Equity Tier One Risk Based Capital
ExcessCommonEquityTierOneRiskBasedCapital
|
286199000 | |
CY2020Q4 | abtx |
Excess Common Equity Tier One Risk Based Capitalto Risk Weighted Assets
ExcessCommonEquityTierOneRiskBasedCapitaltoRiskWeightedAssets
|
0.0700 | |
CY2020Q4 | us-gaap |
Tier One Risk Based Capital
TierOneRiskBasedCapital
|
492281000 | |
CY2020Q4 | us-gaap |
Tier One Risk Based Capital To Risk Weighted Assets
TierOneRiskBasedCapitalToRiskWeightedAssets
|
0.1204 | |
CY2020Q4 | us-gaap |
Tier One Risk Based Capital Required For Capital Adequacy
TierOneRiskBasedCapitalRequiredForCapitalAdequacy
|
245313000 | |
CY2020Q4 | us-gaap |
Tier One Risk Based Capital Required For Capital Adequacy To Risk Weighted Assets
TierOneRiskBasedCapitalRequiredForCapitalAdequacyToRiskWeightedAssets
|
0.0600 | |
CY2020Q4 | us-gaap |
Excess Tier One Risk Based Capital
ExcessTierOneRiskBasedCapital
|
347527000 | |
CY2020Q4 | us-gaap |
Excess Tier One Risk Based Capital To Risk Weighted Assets
ExcessTierOneRiskBasedCapitalToRiskWeightedAssets
|
0.0850 | |
CY2020Q4 | us-gaap |
Tier One Leverage Capital
TierOneLeverageCapital
|
492281000 | |
CY2020Q4 | us-gaap |
Tier One Leverage Capital To Average Assets
TierOneLeverageCapitalToAverageAssets
|
0.0851 | |
CY2020Q4 | us-gaap |
Tier One Leverage Capital Required For Capital Adequacy
TierOneLeverageCapitalRequiredForCapitalAdequacy
|
231518000 | |
CY2020Q4 | us-gaap |
Tier One Leverage Capital Required For Capital Adequacy To Average Assets
TierOneLeverageCapitalRequiredForCapitalAdequacyToAverageAssets
|
0.0400 | |
CY2020Q4 | us-gaap |
Excess Tier One Leverage Capital
ExcessTierOneLeverageCapital
|
231518000 | |
CY2020Q4 | us-gaap |
Excess Tier One Leverage Capital To Average Assets
ExcessTierOneLeverageCapitalToAverageAssets
|
0.0400 | |
CY2019Q4 | us-gaap |
Capital
Capital
|
596684000 | |
CY2019Q4 | us-gaap |
Capital To Risk Weighted Assets
CapitalToRiskWeightedAssets
|
0.1483 | |
CY2019Q4 | us-gaap |
Capital Required For Capital Adequacy
CapitalRequiredForCapitalAdequacy
|
321775000 | |
CY2019Q4 | us-gaap |
Capital Required For Capital Adequacy To Risk Weighted Assets
CapitalRequiredForCapitalAdequacyToRiskWeightedAssets
|
0.0800 | |
CY2019Q4 | us-gaap |
Excess Capital
ExcessCapital
|
422330000 | |
CY2019Q4 | us-gaap |
Excess Capital To Risk Weighted Assets
ExcessCapitalToRiskWeightedAssets
|
0.1050 | |
CY2019Q4 | abtx |
Common Equity Tier One Risk Based Capital
CommonEquityTierOneRiskBasedCapital
|
459447000 | |
CY2019Q4 | abtx |
Common Equity Tier One Risk Based Capital To Risk Weighted Assets
CommonEquityTierOneRiskBasedCapitalToRiskWeightedAssets
|
0.1142 | |
CY2019Q4 | abtx |
Common Equity Tier One Risk Based Capital Required For Capital Adequacy
CommonEquityTierOneRiskBasedCapitalRequiredForCapitalAdequacy
|
180999000 | |
CY2019Q4 | abtx |
Common Equity Tier One Risk Based Capital Required For Capital Adequacy To Risk Weighted
CommonEquityTierOneRiskBasedCapitalRequiredForCapitalAdequacyToRiskWeighted
|
0.0450 | |
CY2019Q4 | abtx |
Excess Common Equity Tier One Risk Based Capital
ExcessCommonEquityTierOneRiskBasedCapital
|
281553000 | |
CY2019Q4 | abtx |
Excess Common Equity Tier One Risk Based Capitalto Risk Weighted Assets
ExcessCommonEquityTierOneRiskBasedCapitaltoRiskWeightedAssets
|
0.0700 | |
CY2019Q4 | us-gaap |
Tier One Risk Based Capital
TierOneRiskBasedCapital
|
468972000 | |
CY2019Q4 | us-gaap |
Tier One Risk Based Capital To Risk Weighted Assets
TierOneRiskBasedCapitalToRiskWeightedAssets
|
0.1166 | |
CY2019Q4 | us-gaap |
Tier One Risk Based Capital Required For Capital Adequacy
TierOneRiskBasedCapitalRequiredForCapitalAdequacy
|
241331000 | |
CY2019Q4 | us-gaap |
Tier One Risk Based Capital Required For Capital Adequacy To Risk Weighted Assets
TierOneRiskBasedCapitalRequiredForCapitalAdequacyToRiskWeightedAssets
|
0.0600 | |
CY2019Q4 | us-gaap |
Excess Tier One Risk Based Capital
ExcessTierOneRiskBasedCapital
|
341886000 | |
CY2019Q4 | us-gaap |
Excess Tier One Risk Based Capital To Risk Weighted Assets
ExcessTierOneRiskBasedCapitalToRiskWeightedAssets
|
0.0850 | |
CY2019Q4 | us-gaap |
Tier One Leverage Capital
TierOneLeverageCapital
|
468972000 | |
CY2019Q4 | us-gaap |
Tier One Leverage Capital To Average Assets
TierOneLeverageCapitalToAverageAssets
|
0.1002 | |
CY2019Q4 | us-gaap |
Tier One Leverage Capital Required For Capital Adequacy
TierOneLeverageCapitalRequiredForCapitalAdequacy
|
187146000 | |
CY2019Q4 | us-gaap |
Tier One Leverage Capital Required For Capital Adequacy To Average Assets
TierOneLeverageCapitalRequiredForCapitalAdequacyToAverageAssets
|
0.0400 | |
CY2019Q4 | us-gaap |
Excess Tier One Leverage Capital
ExcessTierOneLeverageCapital
|
187146000 | |
CY2019Q4 | us-gaap |
Excess Tier One Leverage Capital To Average Assets
ExcessTierOneLeverageCapitalToAverageAssets
|
0.0400 | |
CY2020 | us-gaap |
Net Income Loss
NetIncomeLoss
|
45534000 | |
CY2019 | us-gaap |
Net Income Loss
NetIncomeLoss
|
52959000 | |
CY2018 | us-gaap |
Net Income Loss
NetIncomeLoss
|
37309000 | |
CY2020 | us-gaap |
Weighted Average Number Of Shares Outstanding Basic
WeightedAverageNumberOfSharesOutstandingBasic
|
20415000 | |
CY2020 | us-gaap |
Earnings Per Share Basic
EarningsPerShareBasic
|
2.23 | |
CY2019 | us-gaap |
Weighted Average Number Of Shares Outstanding Basic
WeightedAverageNumberOfSharesOutstandingBasic
|
21152000 | |
CY2019 | us-gaap |
Earnings Per Share Basic
EarningsPerShareBasic
|
2.50 | |
CY2018 | us-gaap |
Weighted Average Number Of Shares Outstanding Basic
WeightedAverageNumberOfSharesOutstandingBasic
|
15485000 | |
CY2018 | us-gaap |
Earnings Per Share Basic
EarningsPerShareBasic
|
2.41 | |
CY2020 | us-gaap |
Incremental Common Shares Attributable To Share Based Payment Arrangements
IncrementalCommonSharesAttributableToShareBasedPaymentArrangements
|
131000 | |
CY2019 | us-gaap |
Incremental Common Shares Attributable To Share Based Payment Arrangements
IncrementalCommonSharesAttributableToShareBasedPaymentArrangements
|
272000 | |
CY2018 | us-gaap |
Incremental Common Shares Attributable To Share Based Payment Arrangements
IncrementalCommonSharesAttributableToShareBasedPaymentArrangements
|
288000 | |
CY2020 | us-gaap |
Weighted Average Number Of Diluted Shares Outstanding
WeightedAverageNumberOfDilutedSharesOutstanding
|
20546000 | |
CY2020 | us-gaap |
Earnings Per Share Diluted
EarningsPerShareDiluted
|
2.22 | |
CY2019 | us-gaap |
Weighted Average Number Of Diluted Shares Outstanding
WeightedAverageNumberOfDilutedSharesOutstanding
|
21424000 | |
CY2019 | us-gaap |
Earnings Per Share Diluted
EarningsPerShareDiluted
|
2.47 | |
CY2018 | us-gaap |
Weighted Average Number Of Diluted Shares Outstanding
WeightedAverageNumberOfDilutedSharesOutstanding
|
15773000 | |
CY2018 | us-gaap |
Earnings Per Share Diluted
EarningsPerShareDiluted
|
2.37 | |
CY2020Q1 | us-gaap |
Interest And Dividend Income Operating
InterestAndDividendIncomeOperating
|
57452000 | |
CY2020Q1 | us-gaap |
Interest Income Expense Net
InterestIncomeExpenseNet
|
45025000 | |
CY2020Q1 | us-gaap |
Net Income Loss Available To Common Stockholders Basic
NetIncomeLossAvailableToCommonStockholdersBasic
|
3516000 | |
CY2020Q1 | us-gaap |
Earnings Per Share Basic
EarningsPerShareBasic
|
0.17 | |
CY2020Q1 | us-gaap |
Earnings Per Share Diluted
EarningsPerShareDiluted
|
0.17 | |
CY2020Q2 | us-gaap |
Interest And Dividend Income Operating
InterestAndDividendIncomeOperating
|
60452000 | |
CY2020Q2 | us-gaap |
Interest Income Expense Net
InterestIncomeExpenseNet
|
50847000 | |
CY2020Q2 | us-gaap |
Net Income Loss Available To Common Stockholders Basic
NetIncomeLossAvailableToCommonStockholdersBasic
|
9907000 | |
CY2020Q2 | us-gaap |
Earnings Per Share Basic
EarningsPerShareBasic
|
0.49 | |
CY2020Q2 | us-gaap |
Earnings Per Share Diluted
EarningsPerShareDiluted
|
0.48 | |
CY2020Q3 | us-gaap |
Interest And Dividend Income Operating
InterestAndDividendIncomeOperating
|
60811000 | |
CY2020Q3 | us-gaap |
Interest Income Expense Net
InterestIncomeExpenseNet
|
51909000 | |
CY2020Q3 | us-gaap |
Net Income Loss Available To Common Stockholders Basic
NetIncomeLossAvailableToCommonStockholdersBasic
|
16170000 | |
CY2020Q3 | us-gaap |
Earnings Per Share Basic
EarningsPerShareBasic
|
0.79 | |
CY2020Q3 | us-gaap |
Earnings Per Share Diluted
EarningsPerShareDiluted
|
0.79 | |
CY2020Q4 | us-gaap |
Interest And Dividend Income Operating
InterestAndDividendIncomeOperating
|
63047000 | |
CY2020Q4 | us-gaap |
Interest Income Expense Net
InterestIncomeExpenseNet
|
54902000 | |
CY2020Q4 | us-gaap |
Net Income Loss Available To Common Stockholders Basic
NetIncomeLossAvailableToCommonStockholdersBasic
|
15941000 | |
CY2020Q4 | us-gaap |
Earnings Per Share Basic
EarningsPerShareBasic
|
0.78 | |
CY2020Q4 | us-gaap |
Earnings Per Share Diluted
EarningsPerShareDiluted
|
0.77 | |
CY2019Q1 | us-gaap |
Interest And Dividend Income Operating
InterestAndDividendIncomeOperating
|
57149000 | |
CY2019Q1 | us-gaap |
Interest Income Expense Net
InterestIncomeExpenseNet
|
44603000 | |
CY2019Q1 | us-gaap |
Net Income Loss Available To Common Stockholders Basic
NetIncomeLossAvailableToCommonStockholdersBasic
|
12678000 | |
CY2019Q1 | us-gaap |
Earnings Per Share Basic
EarningsPerShareBasic
|
0.58 | |
CY2019Q1 | us-gaap |
Earnings Per Share Diluted
EarningsPerShareDiluted
|
0.58 | |
CY2019Q2 | us-gaap |
Interest And Dividend Income Operating
InterestAndDividendIncomeOperating
|
58946000 | |
CY2019Q2 | us-gaap |
Interest Income Expense Net
InterestIncomeExpenseNet
|
45571000 | |
CY2019Q2 | us-gaap |
Net Income Loss Available To Common Stockholders Basic
NetIncomeLossAvailableToCommonStockholdersBasic
|
14248000 | |
CY2019Q2 | us-gaap |
Earnings Per Share Basic
EarningsPerShareBasic
|
0.67 | |
CY2019Q2 | us-gaap |
Earnings Per Share Diluted
EarningsPerShareDiluted
|
0.66 | |
CY2019Q3 | us-gaap |
Interest And Dividend Income Operating
InterestAndDividendIncomeOperating
|
58665000 | |
CY2019Q3 | us-gaap |
Interest Income Expense Net
InterestIncomeExpenseNet
|
44837000 | |
CY2019Q3 | us-gaap |
Net Income Loss Available To Common Stockholders Basic
NetIncomeLossAvailableToCommonStockholdersBasic
|
12047000 | |
CY2019Q3 | us-gaap |
Earnings Per Share Basic
EarningsPerShareBasic
|
0.57 | |
CY2019Q3 | us-gaap |
Earnings Per Share Diluted
EarningsPerShareDiluted
|
0.57 | |
CY2019Q4 | us-gaap |
Interest And Dividend Income Operating
InterestAndDividendIncomeOperating
|
58147000 | |
CY2019Q4 | us-gaap |
Interest Income Expense Net
InterestIncomeExpenseNet
|
44526000 | |
CY2019Q4 | us-gaap |
Net Income Loss Available To Common Stockholders Basic
NetIncomeLossAvailableToCommonStockholdersBasic
|
13986000 | |
CY2019Q4 | us-gaap |
Earnings Per Share Basic
EarningsPerShareBasic
|
0.68 | |
CY2019Q4 | us-gaap |
Earnings Per Share Diluted
EarningsPerShareDiluted
|
0.67 |