2021 Q1 Form 10-Q Financial Statement
#000156459021021934 Filed on April 29, 2021
Income Statement
Concept | 2021 Q1 | 2020 Q1 |
---|
Balance Sheet
Concept | 2021 Q1 | 2020 Q1 |
---|---|---|
SHORT-TERM ASSETS | ||
Cash & Short-Term Investments | ||
YoY Change | ||
Cash & Equivalents | $624.3M | $174.9M |
Short-Term Investments | ||
Other Short-Term Assets | ||
YoY Change | ||
Inventory | ||
Prepaid Expenses | ||
Receivables | ||
Other Receivables | ||
Total Short-Term Assets | ||
YoY Change | ||
LONG-TERM ASSETS | ||
Property, Plant & Equipment | $66.12M | $66.80M |
YoY Change | -1.03% | 10.78% |
Goodwill | $223.6M | |
YoY Change | ||
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 | $6.431B | $5.002B |
YoY Change | 28.56% | 4.9% |
SHORT-TERM LIABILITIES | ||
YoY Change | ||
Accounts Payable | $3.900M | $3.800M |
YoY Change | 2.63% | -15.56% |
Accrued Expenses | $11.40M | $10.80M |
YoY Change | 5.56% | -31.21% |
Deferred Revenue | ||
YoY Change | ||
Short-Term Debt | ||
YoY Change | ||
Long-Term Debt Due | ||
YoY Change | ||
Total Short-Term Liabilities | $15.30M | $14.60M |
YoY Change | 4.79% | -27.72% |
LONG-TERM LIABILITIES | ||
Long-Term Debt | $256.0M | $298.4M |
YoY Change | -14.21% | 18.88% |
Other Long-Term Liabilities | $25.00M | $29.20M |
YoY Change | -14.38% | 111.59% |
Total Long-Term Liabilities | $281.0M | $327.6M |
YoY Change | -14.22% | 23.72% |
TOTAL LIABILITIES | ||
Total Short-Term Liabilities | $15.30M | $14.60M |
Total Long-Term Liabilities | $281.0M | $327.6M |
Total Liabilities | $5.670B | $4.296B |
YoY Change | 32.0% | 5.68% |
SHAREHOLDERS EQUITY | ||
Retained Earnings | $210.8M | |
YoY Change | ||
Common Stock | $20.18M | |
YoY Change | ||
Preferred Stock | ||
YoY Change | ||
Treasury Stock (at cost) | ||
YoY Change | ||
Treasury Stock Shares | ||
Shareholders Equity | $760.5M | $706.6M |
YoY Change | ||
Total Liabilities & Shareholders Equity | $6.431B | $5.002B |
YoY Change | 28.56% | 4.9% |
Cashflow Statement
Concept | 2021 Q1 | 2020 Q1 |
---|
Facts In Submission
Frame | Concept Type | Concept / XBRL Key | Value | Unit |
---|---|---|---|---|
CY2020Q4 | us-gaap |
Bank Owned Life Insurance
BankOwnedLifeInsurance
|
27686000 | |
CY2020Q4 | us-gaap |
Goodwill
Goodwill
|
223642000 | |
CY2021Q1 | dei |
Trading Symbol
TradingSymbol
|
ABTX | |
CY2021Q1 | dei |
Entity Small Business
EntitySmallBusiness
|
false | |
CY2020Q1 | us-gaap |
Information Technology And Data Processing
InformationTechnologyAndDataProcessing
|
1826000 | |
CY2020Q4 | us-gaap |
Common Stock Value
CommonStockValue
|
20208000 | |
CY2020Q4 | us-gaap |
Common Stock Shares Authorized
CommonStockSharesAuthorized
|
80000000 | |
CY2021Q1 | dei |
Entity Filer Category
EntityFilerCategory
|
Accelerated Filer | |
CY2020Q4 | us-gaap |
Common Stock Par Or Stated Value Per Share
CommonStockParOrStatedValuePerShare
|
1 | |
CY2020Q4 | us-gaap |
Common Stock Shares Outstanding
CommonStockSharesOutstanding
|
20208323 | |
CY2021Q1 | us-gaap |
Lessee Operating Lease Existence Of Option To Extend
LesseeOperatingLeaseExistenceOfOptionToExtend
|
true | |
CY2021Q1 | us-gaap |
Operating Lease Weighted Average Remaining Lease Term1
OperatingLeaseWeightedAverageRemainingLeaseTerm1
|
P5Y4M24D | |
CY2020Q4 | us-gaap |
Operating Lease Weighted Average Remaining Lease Term1
OperatingLeaseWeightedAverageRemainingLeaseTerm1
|
P5Y6M21D | |
CY2021Q1 | us-gaap |
Operating Lease Right Of Use Asset Statement Of Financial Position Extensible List
OperatingLeaseRightOfUseAssetStatementOfFinancialPositionExtensibleList
|
us-gaap:PropertyPlantAndEquipmentNet | |
CY2020Q4 | us-gaap |
Operating Lease Right Of Use Asset Statement Of Financial Position Extensible List
OperatingLeaseRightOfUseAssetStatementOfFinancialPositionExtensibleList
|
us-gaap:PropertyPlantAndEquipmentNet | |
CY2021Q1 | us-gaap |
Operating Lease Liability Statement Of Financial Position Extensible List
OperatingLeaseLiabilityStatementOfFinancialPositionExtensibleList
|
us-gaap:OtherLiabilities | |
CY2020Q4 | us-gaap |
Operating Lease Liability Statement Of Financial Position Extensible List
OperatingLeaseLiabilityStatementOfFinancialPositionExtensibleList
|
us-gaap:OtherLiabilities | |
CY2020 | us-gaap |
Sharebased Compensation Arrangement By Sharebased Payment Award Options Outstanding Weighted Average Remaining Contractual Term2
SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsOutstandingWeightedAverageRemainingContractualTerm2
|
P3Y5M4D | |
CY2021Q1 | us-gaap |
Sharebased Compensation Arrangement By Sharebased Payment Award Options Outstanding Weighted Average Remaining Contractual Term2
SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsOutstandingWeightedAverageRemainingContractualTerm2
|
P3Y3M29D | |
CY2021Q1 | us-gaap |
Sharebased Compensation Arrangement By Sharebased Payment Award Options Exercisable Weighted Average Remaining Contractual Term1
SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableWeightedAverageRemainingContractualTerm1
|
P3Y3M7D | |
CY2021Q1 | dei |
Document Period End Date
DocumentPeriodEndDate
|
2021-03-31 | |
CY2020Q4 | us-gaap |
Interest Payable Current And Noncurrent
InterestPayableCurrentAndNoncurrent
|
2701000 | |
CY2021Q1 | us-gaap |
Liabilities
Liabilities
|
5670453000 | |
CY2021Q1 | us-gaap |
Interest Income Securities Taxable
InterestIncomeSecuritiesTaxable
|
2402000 | |
CY2021Q1 | us-gaap |
Interest Income Deposits With Financial Institutions
InterestIncomeDepositsWithFinancialInstitutions
|
41000 | |
CY2021Q1 | us-gaap |
Interest And Dividend Income Operating
InterestAndDividendIncomeOperating
|
62828000 | |
CY2021Q1 | us-gaap |
Interest Expense Now Accounts Money Market Accounts And Savings Deposits
InterestExpenseNOWAccountsMoneyMarketAccountsAndSavingsDeposits
|
1484000 | |
CY2021Q1 | us-gaap |
Interest Expense Time Deposits
InterestExpenseTimeDeposits
|
3665000 | |
CY2021Q1 | us-gaap |
Interest Expense Borrowings
InterestExpenseBorrowings
|
539000 | |
CY2021Q1 | abtx |
Interest Expense Subordinated Debt
InterestExpenseSubordinatedDebt
|
1442000 | |
CY2021Q1 | us-gaap |
Interest Expense
InterestExpense
|
7130000 | |
CY2021Q1 | us-gaap |
Interest Income Expense Net
InterestIncomeExpenseNet
|
55698000 | |
CY2021Q1 | us-gaap |
Provision For Loan Lease And Other Losses
ProvisionForLoanLeaseAndOtherLosses
|
639000 | |
CY2020Q1 | us-gaap |
Provision For Loan Lease And Other Losses
ProvisionForLoanLeaseAndOtherLosses
|
10990000 | |
CY2020Q4 | us-gaap |
Other Liabilities
OtherLiabilities
|
36439000 | |
CY2020Q1 | us-gaap |
Interest And Fee Income Loans And Leases
InterestAndFeeIncomeLoansAndLeases
|
54624000 | |
CY2020Q4 | us-gaap |
Preferred Stock Shares Outstanding
PreferredStockSharesOutstanding
|
0 | |
CY2021Q1 | dei |
Document Fiscal Year Focus
DocumentFiscalYearFocus
|
2021 | |
CY2021Q1 | dei |
Document Fiscal Period Focus
DocumentFiscalPeriodFocus
|
Q1 | |
CY2021Q1 | dei |
Amendment Flag
AmendmentFlag
|
false | |
CY2021Q1 | us-gaap |
Commitments And Contingencies
CommitmentsAndContingencies
|
||
CY2021Q1 | us-gaap |
Preferred Stock Value
PreferredStockValue
|
||
CY2021Q1 | dei |
Document Type
DocumentType
|
10-Q | |
CY2021Q1 | dei |
Document Quarterly Report
DocumentQuarterlyReport
|
true | |
CY2021Q1 | dei |
Document Transition Report
DocumentTransitionReport
|
false | |
CY2021Q1 | dei |
Entity File Number
EntityFileNumber
|
001-37585 | |
CY2021Q1 | dei |
Entity Incorporation State Country Code
EntityIncorporationStateCountryCode
|
TX | |
CY2021Q1 | dei |
Entity Tax Identification Number
EntityTaxIdentificationNumber
|
26-3564100 | |
CY2021Q1 | dei |
Entity Address Address Line1
EntityAddressAddressLine1
|
8847 West Sam Houston Parkway, N. | |
CY2021Q1 | dei |
Entity Address Address Line2
EntityAddressAddressLine2
|
Suite 200 | |
CY2021Q1 | dei |
Entity Registrant Name
EntityRegistrantName
|
Allegiance Bancshares, Inc. | |
CY2020Q4 | us-gaap |
Preferred Stock Shares Issued
PreferredStockSharesIssued
|
0 | |
CY2020Q4 | us-gaap |
Liabilities And Stockholders Equity
LiabilitiesAndStockholdersEquity
|
6050128000 | |
CY2020Q4 | us-gaap |
Preferred Stock Shares Authorized
PreferredStockSharesAuthorized
|
1000000 | |
CY2020Q4 | us-gaap |
Additional Paid In Capital
AdditionalPaidInCapital
|
508794000 | |
CY2020Q4 | us-gaap |
Liabilities
Liabilities
|
5291459000 | |
CY2020Q4 | us-gaap |
Common Stock Shares Issued
CommonStockSharesIssued
|
20208323 | |
CY2020Q4 | us-gaap |
Deposits
Deposits
|
4988482000 | |
CY2020Q4 | us-gaap |
Loans And Leases Receivable Gross Carrying Amount
LoansAndLeasesReceivableGrossCarryingAmount
|
4491764000 | |
CY2020Q4 | us-gaap |
Assets
Assets
|
6050128000 | |
CY2020Q4 | us-gaap |
Property Plant And Equipment Net
PropertyPlantAndEquipmentNet
|
70685000 | |
CY2020Q4 | us-gaap |
Real Estate Acquired Through Foreclosure
RealEstateAcquiredThroughForeclosure
|
9196000 | |
CY2021Q1 | dei |
Security Exchange Name
SecurityExchangeName
|
NASDAQ | |
CY2020Q4 | us-gaap |
Noninterest Bearing Deposit Liabilities
NoninterestBearingDepositLiabilities
|
1704567000 | |
CY2020Q4 | us-gaap |
Demand Deposit Accounts
DemandDepositAccounts
|
437328000 | |
CY2020Q4 | us-gaap |
Deposits Savings Deposits
DepositsSavingsDeposits
|
1499938000 | |
CY2020Q4 | us-gaap |
Interest Bearing Deposits In Banks
InterestBearingDepositsInBanks
|
299869000 | |
CY2020Q4 | us-gaap |
Loans And Leases Receivable Allowance
LoansAndLeasesReceivableAllowance
|
53173000 | |
CY2020Q4 | us-gaap |
Cash And Cash Equivalents At Carrying Value
CashAndCashEquivalentsAtCarryingValue
|
422766000 | |
CY2020Q4 | us-gaap |
Available For Sale Securities
AvailableForSaleSecurities
|
772890000 | |
CY2020Q4 | us-gaap |
Loans And Leases Receivable Net Reported Amount
LoansAndLeasesReceivableNetReportedAmount
|
4438591000 | |
CY2020Q4 | us-gaap |
Time Deposits
TimeDeposits
|
1346649000 | |
CY2020Q4 | us-gaap |
Interest Receivable
InterestReceivable
|
40053000 | |
CY2020Q4 | us-gaap |
Federal Home Loan Bank Stock
FederalHomeLoanBankStock
|
7756000 | |
CY2020Q4 | us-gaap |
Interest Bearing Deposit Liabilities
InterestBearingDepositLiabilities
|
3283915000 | |
CY2020Q4 | us-gaap |
Cash And Due From Banks
CashAndDueFromBanks
|
122897000 | |
CY2020Q4 | us-gaap |
Preferred Stock Par Or Stated Value Per Share
PreferredStockParOrStatedValuePerShare
|
1 | |
CY2021Q1 | us-gaap |
Gains Losses On Sales Of Other Real Estate
GainsLossesOnSalesOfOtherRealEstate
|
-176000 | |
CY2020Q1 | us-gaap |
Interest Expense Time Deposits
InterestExpenseTimeDeposits
|
6084000 | |
CY2020Q1 | us-gaap |
Interest Expense Borrowings
InterestExpenseBorrowings
|
506000 | |
CY2020Q1 | us-gaap |
Interest Expense
InterestExpense
|
12427000 | |
CY2020Q1 | us-gaap |
Interest Income Expense Net
InterestIncomeExpenseNet
|
45025000 | |
CY2020Q1 | us-gaap |
Debt And Equity Securities Gain Loss
DebtAndEquitySecuritiesGainLoss
|
194000 | |
CY2020Q1 | abtx |
Interest Expense Subordinated Debt
InterestExpenseSubordinatedDebt
|
1473000 | |
CY2020Q4 | us-gaap |
Accumulated Other Comprehensive Income Loss Net Of Tax
AccumulatedOtherComprehensiveIncomeLossNetOfTax
|
34431000 | |
CY2020Q1 | us-gaap |
Interest Income Securities Taxable
InterestIncomeSecuritiesTaxable
|
2087000 | |
CY2020Q4 | abtx |
Borrowed Funds
BorrowedFunds
|
155515000 | |
CY2020Q4 | us-gaap |
Subordinated Debt
SubordinatedDebt
|
108322000 | |
CY2020Q4 | us-gaap |
Stockholders Equity
StockholdersEquity
|
758669000 | |
CY2020Q4 | us-gaap |
Retained Earnings Accumulated Deficit
RetainedEarningsAccumulatedDeficit
|
195236000 | |
CY2020Q1 | us-gaap |
Interest And Dividend Income Operating
InterestAndDividendIncomeOperating
|
57452000 | |
CY2020Q1 | us-gaap |
Interest Expense Now Accounts Money Market Accounts And Savings Deposits
InterestExpenseNOWAccountsMoneyMarketAccountsAndSavingsDeposits
|
4364000 | |
CY2020Q1 | us-gaap |
Gains Losses On Sales Of Other Real Estate
GainsLossesOnSalesOfOtherRealEstate
|
-69000 | |
CY2021Q1 | us-gaap |
Bank Owned Life Insurance Income
BankOwnedLifeInsuranceIncome
|
139000 | |
CY2020Q1 | us-gaap |
Bank Owned Life Insurance Income
BankOwnedLifeInsuranceIncome
|
151000 | |
CY2021Q1 | abtx |
Rebatefromcorrespondentbank
Rebatefromcorrespondentbank
|
132000 | |
CY2020Q1 | abtx |
Rebatefromcorrespondentbank
Rebatefromcorrespondentbank
|
493000 | |
CY2021Q1 | us-gaap |
Noninterest Income Other Operating Income
NoninterestIncomeOtherOperatingIncome
|
1121000 | |
CY2020Q1 | us-gaap |
Noninterest Income Other Operating Income
NoninterestIncomeOtherOperatingIncome
|
1330000 | |
CY2021Q1 | us-gaap |
Noninterest Income
NoninterestIncome
|
1736000 | |
CY2020Q1 | us-gaap |
Noninterest Income
NoninterestIncome
|
2725000 | |
CY2021Q1 | us-gaap |
Labor And Related Expense
LaborAndRelatedExpense
|
22452000 | |
CY2020Q1 | us-gaap |
Labor And Related Expense
LaborAndRelatedExpense
|
19781000 | |
CY2021Q1 | us-gaap |
Occupancy Net
OccupancyNet
|
2390000 | |
CY2020Q1 | us-gaap |
Stock Repurchased During Period Value
StockRepurchasedDuringPeriodValue
|
9302000 | |
CY2021Q1 | us-gaap |
Depreciation Nonproduction
DepreciationNonproduction
|
1034000 | |
CY2020Q1 | us-gaap |
Stock Repurchased During Period Shares
StockRepurchasedDuringPeriodShares
|
244334 | |
CY2020Q1 | us-gaap |
Professional Fees
ProfessionalFees
|
573000 | |
CY2021Q1 | abtx |
Regulatory Assessments And Fdic Insurance
RegulatoryAssessmentsAndFDICInsurance
|
807000 | |
CY2020Q1 | abtx |
Regulatory Assessments And Fdic Insurance
RegulatoryAssessmentsAndFDICInsurance
|
632000 | |
CY2020Q1 | us-gaap |
Amortization Of Intangible Assets
AmortizationOfIntangibleAssets
|
990000 | |
CY2021Q1 | us-gaap |
Communication
Communication
|
321000 | |
CY2020Q1 | us-gaap |
Communication
Communication
|
417000 | |
CY2021Q1 | us-gaap |
Marketing And Advertising Expense
MarketingAndAdvertisingExpense
|
298000 | |
CY2020Q1 | us-gaap |
Marketing And Advertising Expense
MarketingAndAdvertisingExpense
|
521000 | |
CY2021Q1 | us-gaap |
Other Noninterest Expense
OtherNoninterestExpense
|
3691000 | |
CY2021Q1 | us-gaap |
Noninterest Expense
NoninterestExpense
|
34919000 | |
CY2021Q1 | us-gaap |
Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest
IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest
|
21876000 | |
CY2021Q1 | us-gaap |
Income Tax Expense Benefit
IncomeTaxExpenseBenefit
|
3866000 | |
CY2021Q1 | us-gaap |
Net Income Loss Available To Common Stockholders Basic
NetIncomeLossAvailableToCommonStockholdersBasic
|
18010000 | |
CY2021Q1 | us-gaap |
Earnings Per Share Basic
EarningsPerShareBasic
|
0.89 | |
CY2021Q1 | us-gaap |
Earnings Per Share Diluted
EarningsPerShareDiluted
|
0.89 | |
CY2020Q1 | us-gaap |
Stock Issued During Period Shares Share Based Compensation
StockIssuedDuringPeriodSharesShareBasedCompensation
|
75638 | |
CY2020Q1 | us-gaap |
Stock Issued During Period Value Share Based Compensation
StockIssuedDuringPeriodValueShareBasedCompensation
|
1157000 | |
CY2020Q1 | us-gaap |
Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value
AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue
|
804000 | |
CY2020Q1 | us-gaap |
Shares Issued
SharesIssued
|
20355120 | |
CY2020Q4 | us-gaap |
Shares Issued
SharesIssued
|
20208323 | |
CY2021Q1 | us-gaap |
Interest Income Securities Tax Exempt
InterestIncomeSecuritiesTaxExempt
|
2394000 | |
CY2020Q1 | us-gaap |
Interest Income Securities Tax Exempt
InterestIncomeSecuritiesTaxExempt
|
546000 | |
CY2020Q1 | us-gaap |
Interest Income Deposits With Financial Institutions
InterestIncomeDepositsWithFinancialInstitutions
|
195000 | |
CY2021Q1 | us-gaap |
Available For Sale Securities
AvailableForSaleSecurities
|
787516000 | |
CY2021Q1 | dei |
Entity Address City Or Town
EntityAddressCityOrTown
|
Houston | |
CY2021Q1 | us-gaap |
Cash And Cash Equivalents At Carrying Value
CashAndCashEquivalentsAtCarryingValue
|
624330000 | |
CY2021Q1 | dei |
Entity Address State Or Province
EntityAddressStateOrProvince
|
TX | |
CY2021Q1 | dei |
Entity Address Postal Zip Code
EntityAddressPostalZipCode
|
77040 | |
CY2021Q1 | us-gaap |
Loans And Leases Receivable Gross Carrying Amount
LoansAndLeasesReceivableGrossCarryingAmount
|
4659169000 | |
CY2021Q1 | us-gaap |
Loans And Leases Receivable Allowance
LoansAndLeasesReceivableAllowance
|
52758000 | |
CY2021Q1 | us-gaap |
Loans And Leases Receivable Net Reported Amount
LoansAndLeasesReceivableNetReportedAmount
|
4606411000 | |
CY2021Q1 | dei |
City Area Code
CityAreaCode
|
281 | |
CY2021Q1 | dei |
Local Phone Number
LocalPhoneNumber
|
894-3200 | |
CY2021Q1 | dei |
Security12b Title
Security12bTitle
|
Common Stock, par value, $1.00 per share | |
CY2021Q1 | dei |
Entity Current Reporting Status
EntityCurrentReportingStatus
|
Yes | |
CY2021Q1 | dei |
Entity Interactive Data Current
EntityInteractiveDataCurrent
|
Yes | |
CY2021Q1 | dei |
Entity Emerging Growth Company
EntityEmergingGrowthCompany
|
false | |
CY2021Q1 | dei |
Entity Shell Company
EntityShellCompany
|
false | |
CY2021Q2 | dei |
Entity Common Stock Shares Outstanding
EntityCommonStockSharesOutstanding
|
20183015 | |
CY2021Q1 | us-gaap |
Cash And Due From Banks
CashAndDueFromBanks
|
141947000 | |
CY2021Q1 | us-gaap |
Interest Bearing Deposits In Banks
InterestBearingDepositsInBanks
|
482383000 | |
CY2021Q1 | us-gaap |
Demand Deposit Accounts
DemandDepositAccounts
|
480710000 | |
CY2021Q1 | us-gaap |
Deposits Savings Deposits
DepositsSavingsDeposits
|
1617823000 | |
CY2021Q1 | us-gaap |
Interest Receivable
InterestReceivable
|
38632000 | |
CY2021Q1 | us-gaap |
Property Plant And Equipment Net
PropertyPlantAndEquipmentNet
|
66115000 | |
CY2021Q1 | us-gaap |
Real Estate Acquired Through Foreclosure
RealEstateAcquiredThroughForeclosure
|
576000 | |
CY2021Q1 | us-gaap |
Federal Home Loan Bank Stock
FederalHomeLoanBankStock
|
7775000 | |
CY2021Q1 | us-gaap |
Bank Owned Life Insurance
BankOwnedLifeInsurance
|
27825000 | |
CY2021Q1 | us-gaap |
Goodwill
Goodwill
|
223642000 | |
CY2021Q1 | us-gaap |
Finite Lived Intangible Assets Net
FiniteLivedIntangibleAssetsNet
|
17130000 | |
CY2020Q4 | us-gaap |
Finite Lived Intangible Assets Net
FiniteLivedIntangibleAssetsNet
|
17954000 | |
CY2021Q1 | us-gaap |
Other Assets
OtherAssets
|
31038000 | |
CY2020Q4 | us-gaap |
Other Assets
OtherAssets
|
18909000 | |
CY2021Q1 | us-gaap |
Assets
Assets
|
6430990000 | |
CY2021Q1 | us-gaap |
Noninterest Bearing Deposit Liabilities
NoninterestBearingDepositLiabilities
|
1914121000 | |
CY2021Q1 | us-gaap |
Time Deposits
TimeDeposits
|
1361535000 | |
CY2021Q1 | us-gaap |
Interest Bearing Deposit Liabilities
InterestBearingDepositLiabilities
|
3460068000 | |
CY2021Q1 | us-gaap |
Deposits
Deposits
|
5374189000 | |
CY2021Q1 | us-gaap |
Interest Payable Current And Noncurrent
InterestPayableCurrentAndNoncurrent
|
3862000 | |
CY2021Q1 | abtx |
Borrowed Funds
BorrowedFunds
|
147517000 | |
CY2021Q1 | us-gaap |
Subordinated Debt
SubordinatedDebt
|
108453000 | |
CY2021Q1 | us-gaap |
Other Liabilities
OtherLiabilities
|
36432000 | |
CY2021Q1 | us-gaap |
Preferred Stock Par Or Stated Value Per Share
PreferredStockParOrStatedValuePerShare
|
1 | |
CY2021Q1 | us-gaap |
Preferred Stock Shares Authorized
PreferredStockSharesAuthorized
|
1000000 | |
CY2021Q1 | us-gaap |
Preferred Stock Shares Issued
PreferredStockSharesIssued
|
0 | |
CY2021Q1 | us-gaap |
Preferred Stock Shares Outstanding
PreferredStockSharesOutstanding
|
0 | |
CY2021Q1 | us-gaap |
Common Stock Par Or Stated Value Per Share
CommonStockParOrStatedValuePerShare
|
1 | |
CY2021Q1 | us-gaap |
Common Stock Shares Authorized
CommonStockSharesAuthorized
|
80000000 | |
CY2021Q1 | us-gaap |
Common Stock Shares Issued
CommonStockSharesIssued
|
20182971 | |
CY2021Q1 | us-gaap |
Common Stock Shares Outstanding
CommonStockSharesOutstanding
|
20182971 | |
CY2021Q1 | us-gaap |
Common Stock Value
CommonStockValue
|
20183000 | |
CY2021Q1 | us-gaap |
Additional Paid In Capital
AdditionalPaidInCapital
|
505307000 | |
CY2021Q1 | us-gaap |
Retained Earnings Accumulated Deficit
RetainedEarningsAccumulatedDeficit
|
210834000 | |
CY2020Q4 | us-gaap |
Debt Securities Available For Sale Continuous Unrealized Loss Position Less Than12 Months
DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12Months
|
65083000 | |
CY2021Q1 | us-gaap |
Interest Income Expense After Provision For Loan Loss
InterestIncomeExpenseAfterProvisionForLoanLoss
|
55059000 | |
CY2020Q1 | us-gaap |
Interest Income Expense After Provision For Loan Loss
InterestIncomeExpenseAfterProvisionForLoanLoss
|
34035000 | |
CY2021Q1 | us-gaap |
Accumulated Other Comprehensive Income Loss Net Of Tax
AccumulatedOtherComprehensiveIncomeLossNetOfTax
|
24213000 | |
CY2021Q1 | us-gaap |
Stockholders Equity
StockholdersEquity
|
760537000 | |
CY2021Q1 | us-gaap |
Liabilities And Stockholders Equity
LiabilitiesAndStockholdersEquity
|
6430990000 | |
CY2021Q1 | us-gaap |
Interest And Fee Income Loans And Leases
InterestAndFeeIncomeLoansAndLeases
|
57991000 | |
CY2020Q4 | us-gaap |
Stockholders Equity
StockholdersEquity
|
758669000 | |
CY2021Q1 | us-gaap |
Debt And Equity Securities Gain Loss
DebtAndEquitySecuritiesGainLoss
|
49000 | |
CY2020Q1 | us-gaap |
Occupancy Net
OccupancyNet
|
1907000 | |
CY2020Q1 | us-gaap |
Depreciation Nonproduction
DepreciationNonproduction
|
866000 | |
CY2021Q1 | us-gaap |
Information Technology And Data Processing
InformationTechnologyAndDataProcessing
|
2200000 | |
CY2021Q1 | us-gaap |
Professional Fees
ProfessionalFees
|
789000 | |
CY2021Q1 | us-gaap |
Amortization Of Intangible Assets
AmortizationOfIntangibleAssets
|
824000 | |
CY2021Q1 | us-gaap |
Other Revenue Expense From Real Estate Operations
OtherRevenueExpenseFromRealEstateOperations
|
-113000 | |
CY2020Q1 | us-gaap |
Other Revenue Expense From Real Estate Operations
OtherRevenueExpenseFromRealEstateOperations
|
-2649000 | |
CY2020Q1 | us-gaap |
Other Noninterest Expense
OtherNoninterestExpense
|
2239000 | |
CY2020Q1 | us-gaap |
Noninterest Expense
NoninterestExpense
|
32401000 | |
CY2020Q1 | us-gaap |
Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest
IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest
|
4359000 | |
CY2020Q1 | us-gaap |
Income Tax Expense Benefit
IncomeTaxExpenseBenefit
|
843000 | |
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 | |
CY2021Q1 | us-gaap |
Common Stock Dividends Per Share Cash Paid
CommonStockDividendsPerShareCashPaid
|
0.12 | |
CY2020Q1 | us-gaap |
Common Stock Dividends Per Share Cash Paid
CommonStockDividendsPerShareCashPaid
|
0.10 | |
CY2021Q1 | us-gaap |
Net Income Loss
NetIncomeLoss
|
18010000 | |
CY2020Q1 | us-gaap |
Net Income Loss
NetIncomeLoss
|
3516000 | |
CY2021Q1 | us-gaap |
Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Before Tax
OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodBeforeTax
|
-14710000 | |
CY2020Q1 | us-gaap |
Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Before Tax
OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodBeforeTax
|
3466000 | |
CY2021Q1 | us-gaap |
Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Before Tax
OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesBeforeTax
|
49000 | |
CY2020Q1 | us-gaap |
Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Before Tax
OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesBeforeTax
|
194000 | |
CY2021Q1 | us-gaap |
Other Comprehensive Income Loss Cash Flow Hedge Gain Loss After Reclassification Before Tax Parent
OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationBeforeTaxParent
|
1824000 | |
CY2021Q1 | us-gaap |
Other Comprehensive Income Loss Before Tax Portion Attributable To Parent
OtherComprehensiveIncomeLossBeforeTaxPortionAttributableToParent
|
-12935000 | |
CY2020Q1 | us-gaap |
Other Comprehensive Income Loss Before Tax Portion Attributable To Parent
OtherComprehensiveIncomeLossBeforeTaxPortionAttributableToParent
|
3272000 | |
CY2021Q1 | us-gaap |
Other Comprehensive Income Loss Tax Portion Attributable To Parent1
OtherComprehensiveIncomeLossTaxPortionAttributableToParent1
|
-2717000 | |
CY2020Q1 | us-gaap |
Other Comprehensive Income Loss Tax Portion Attributable To Parent1
OtherComprehensiveIncomeLossTaxPortionAttributableToParent1
|
686000 | |
CY2021Q1 | us-gaap |
Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent
OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent
|
-10218000 | |
CY2020Q1 | us-gaap |
Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent
OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent
|
2586000 | |
CY2021Q1 | us-gaap |
Comprehensive Income Net Of Tax
ComprehensiveIncomeNetOfTax
|
7792000 | |
CY2020Q1 | us-gaap |
Comprehensive Income Net Of Tax
ComprehensiveIncomeNetOfTax
|
6102000 | |
CY2019Q4 | us-gaap |
Shares Issued
SharesIssued
|
20523816 | |
CY2019Q4 | us-gaap |
Stockholders Equity
StockholdersEquity
|
709865000 | |
CY2020Q1 | us-gaap |
Net Income Loss
NetIncomeLoss
|
3516000 | |
CY2020Q1 | us-gaap |
Other Comprehensive Income Loss Net Of Tax
OtherComprehensiveIncomeLossNetOfTax
|
2586000 | |
CY2020Q1 | us-gaap |
Dividends Common Stock Cash
DividendsCommonStockCash
|
2033000 | |
CY2020Q1 | us-gaap |
Stockholders Equity
StockholdersEquity
|
706593000 | |
CY2021Q1 | us-gaap |
Net Income Loss
NetIncomeLoss
|
18010000 | |
CY2021Q1 | us-gaap |
Other Comprehensive Income Loss Net Of Tax
OtherComprehensiveIncomeLossNetOfTax
|
-10218000 | |
CY2021Q1 | us-gaap |
Dividends Common Stock Cash
DividendsCommonStockCash
|
2412000 | |
CY2021Q1 | us-gaap |
Stock Issued During Period Shares Share Based Compensation
StockIssuedDuringPeriodSharesShareBasedCompensation
|
135854 | |
CY2021Q1 | us-gaap |
Stock Issued During Period Value Share Based Compensation
StockIssuedDuringPeriodValueShareBasedCompensation
|
1327000 | |
CY2021Q1 | us-gaap |
Stock Repurchased During Period Shares
StockRepurchasedDuringPeriodShares
|
161206 | |
CY2021Q1 | us-gaap |
Stock Repurchased During Period Value
StockRepurchasedDuringPeriodValue
|
5659000 | |
CY2021Q1 | us-gaap |
Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value
AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue
|
820000 | |
CY2021Q1 | us-gaap |
Shares Issued
SharesIssued
|
20182971 | |
CY2021Q1 | us-gaap |
Stockholders Equity
StockholdersEquity
|
760537000 | |
CY2021Q1 | us-gaap |
Net Income Loss
NetIncomeLoss
|
18010000 | |
CY2020Q1 | us-gaap |
Net Income Loss
NetIncomeLoss
|
3516000 | |
CY2021Q1 | us-gaap |
Depreciation And Amortization
DepreciationAndAmortization
|
1858000 | |
CY2020Q1 | us-gaap |
Depreciation And Amortization
DepreciationAndAmortization
|
1856000 | |
CY2021Q1 | us-gaap |
Provision For Loan Lease And Other Losses
ProvisionForLoanLeaseAndOtherLosses
|
639000 | |
CY2020Q1 | us-gaap |
Provision For Loan Lease And Other Losses
ProvisionForLoanLeaseAndOtherLosses
|
10990000 | |
CY2021Q1 | us-gaap |
Deferred Income Tax Expense Benefit
DeferredIncomeTaxExpenseBenefit
|
-1899000 | |
CY2020Q1 | us-gaap |
Deferred Income Tax Expense Benefit
DeferredIncomeTaxExpenseBenefit
|
-2250000 | |
CY2021Q1 | us-gaap |
Accretion Amortization Of Discounts And Premiums Investments
AccretionAmortizationOfDiscountsAndPremiumsInvestments
|
-1471000 | |
CY2020Q1 | us-gaap |
Accretion Amortization Of Discounts And Premiums Investments
AccretionAmortizationOfDiscountsAndPremiumsInvestments
|
-506000 | |
CY2021Q1 | us-gaap |
Excess Tax Benefit From Share Based Compensation Operating Activities
ExcessTaxBenefitFromShareBasedCompensationOperatingActivities
|
251000 | |
CY2020Q1 | us-gaap |
Excess Tax Benefit From Share Based Compensation Operating Activities
ExcessTaxBenefitFromShareBasedCompensationOperatingActivities
|
25000 | |
CY2021Q1 | us-gaap |
Bank Owned Life Insurance Income
BankOwnedLifeInsuranceIncome
|
139000 | |
CY2020Q1 | us-gaap |
Bank Owned Life Insurance Income
BankOwnedLifeInsuranceIncome
|
151000 | |
CY2021Q1 | abtx |
Accretion Amortization Of Discounts And Premiums Loans
AccretionAmortizationOfDiscountsAndPremiumsLoans
|
97000 | |
CY2020Q1 | abtx |
Accretion Amortization Of Discounts And Premiums Loans
AccretionAmortizationOfDiscountsAndPremiumsLoans
|
1149000 | |
CY2021Q1 | abtx |
Accretion Amortization Of Discounts And Premiums Subordinated Debt
AccretionAmortizationOfDiscountsAndPremiumsSubordinatedDebt
|
-28000 | |
CY2020Q1 | abtx |
Accretion Amortization Of Discounts And Premiums Subordinated Debt
AccretionAmortizationOfDiscountsAndPremiumsSubordinatedDebt
|
-28000 | |
CY2021Q1 | abtx |
Accretion Amortization Of Discounts And Premiums Certificates Of Deposit
AccretionAmortizationOfDiscountsAndPremiumsCertificatesOfDeposit
|
58000 | |
CY2020Q1 | abtx |
Accretion Amortization Of Discounts And Premiums Certificates Of Deposit
AccretionAmortizationOfDiscountsAndPremiumsCertificatesOfDeposit
|
110000 | |
CY2021Q1 | us-gaap |
Gain Loss On Disposition Of Assets1
GainLossOnDispositionOfAssets1
|
-1493000 | |
CY2020Q1 | us-gaap |
Gain Loss On Disposition Of Assets1
GainLossOnDispositionOfAssets1
|
-2283000 | |
CY2021Q1 | us-gaap |
Debt And Equity Securities Gain Loss
DebtAndEquitySecuritiesGainLoss
|
49000 | |
CY2020Q1 | us-gaap |
Debt And Equity Securities Gain Loss
DebtAndEquitySecuritiesGainLoss
|
194000 | |
CY2021Q1 | abtx |
Federal Home Loan Bank Stock Dividends
FederalHomeLoanBankStockDividends
|
19000 | |
CY2020Q1 | abtx |
Federal Home Loan Bank Stock Dividends
FederalHomeLoanBankStockDividends
|
71000 | |
CY2021Q1 | us-gaap |
Share Based Compensation
ShareBasedCompensation
|
820000 | |
CY2020Q1 | us-gaap |
Share Based Compensation
ShareBasedCompensation
|
804000 | |
CY2021Q1 | abtx |
Increase Decrease In Operating Leases
IncreaseDecreaseInOperatingLeases
|
712000 | |
CY2020Q1 | abtx |
Increase Decrease In Operating Leases
IncreaseDecreaseInOperatingLeases
|
636000 | |
CY2021Q1 | abtx |
Increase Decrease In Accrued Interest Receivable And Other Assets
IncreaseDecreaseInAccruedInterestReceivableAndOtherAssets
|
8012000 | |
CY2020Q1 | abtx |
Increase Decrease In Accrued Interest Receivable And Other Assets
IncreaseDecreaseInAccruedInterestReceivableAndOtherAssets
|
4141000 | |
CY2021Q1 | us-gaap |
Increase Decrease In Accrued Liabilities And Other Operating Liabilities
IncreaseDecreaseInAccruedLiabilitiesAndOtherOperatingLiabilities
|
6739000 | |
CY2020Q1 | us-gaap |
Increase Decrease In Accrued Liabilities And Other Operating Liabilities
IncreaseDecreaseInAccruedLiabilitiesAndOtherOperatingLiabilities
|
-2118000 | |
CY2021Q1 | us-gaap |
Net Cash Provided By Used In Operating Activities
NetCashProvidedByUsedInOperatingActivities
|
21246000 | |
CY2020Q1 | us-gaap |
Net Cash Provided By Used In Operating Activities
NetCashProvidedByUsedInOperatingActivities
|
10410000 | |
CY2021Q1 | us-gaap |
Proceeds From Maturities Prepayments And Calls Of Available For Sale Securities
ProceedsFromMaturitiesPrepaymentsAndCallsOfAvailableForSaleSecurities
|
1012785000 | |
CY2020Q1 | us-gaap |
Proceeds From Maturities Prepayments And Calls Of Available For Sale Securities
ProceedsFromMaturitiesPrepaymentsAndCallsOfAvailableForSaleSecurities
|
164575000 | |
CY2021Q1 | abtx |
Proceeds From Sales And Calls Of Available For Sale Securities
ProceedsFromSalesAndCallsOfAvailableForSaleSecurities
|
4898000 | |
CY2020Q1 | abtx |
Proceeds From Sales And Calls Of Available For Sale Securities
ProceedsFromSalesAndCallsOfAvailableForSaleSecurities
|
29735000 | |
CY2021Q1 | us-gaap |
Payments To Acquire Available For Sale Securities Debt
PaymentsToAcquireAvailableForSaleSecuritiesDebt
|
1048261000 | |
CY2020Q1 | us-gaap |
Payments To Acquire Available For Sale Securities Debt
PaymentsToAcquireAvailableForSaleSecuritiesDebt
|
309922000 | |
CY2021Q1 | us-gaap |
Payments For Proceeds From Loans And Leases
PaymentsForProceedsFromLoansAndLeases
|
167253000 | |
CY2020Q1 | us-gaap |
Payments For Proceeds From Loans And Leases
PaymentsForProceedsFromLoansAndLeases
|
49052000 | |
CY2021Q1 | us-gaap |
Payments To Acquire Property Plant And Equipment
PaymentsToAcquirePropertyPlantAndEquipment
|
916000 | |
CY2020Q1 | us-gaap |
Payments To Acquire Property Plant And Equipment
PaymentsToAcquirePropertyPlantAndEquipment
|
1510000 | |
CY2021Q1 | us-gaap |
Proceeds From Sale Of Property Plant And Equipment
ProceedsFromSaleOfPropertyPlantAndEquipment
|
8044000 | |
CY2020Q1 | us-gaap |
Proceeds From Sale Of Property Plant And Equipment
ProceedsFromSaleOfPropertyPlantAndEquipment
|
485000 | |
CY2020Q1 | us-gaap |
Payments For Proceeds From Federal Home Loan Bank Stock
PaymentsForProceedsFromFederalHomeLoanBankStock
|
6485000 | |
CY2021Q1 | us-gaap |
Net Cash Provided By Used In Investing Activities
NetCashProvidedByUsedInInvestingActivities
|
-190703000 | |
CY2020Q1 | us-gaap |
Net Cash Provided By Used In Investing Activities
NetCashProvidedByUsedInInvestingActivities
|
-172174000 | |
CY2021Q1 | us-gaap |
Net Change Noninterest Bearing Deposits Domestic
NetChangeNoninterestBearingDepositsDomestic
|
209554000 | |
CY2020Q1 | us-gaap |
Net Change Noninterest Bearing Deposits Domestic
NetChangeNoninterestBearingDepositsDomestic
|
-34700000 | |
CY2021Q1 | us-gaap |
Net Change Interest Bearing Deposits Domestic
NetChangeInterestBearingDepositsDomestic
|
176211000 | |
CY2020Q1 | us-gaap |
Net Change Interest Bearing Deposits Domestic
NetChangeInterestBearingDepositsDomestic
|
-79717000 | |
CY2020Q1 | us-gaap |
Proceeds From Repayments Of Other Debt
ProceedsFromRepaymentsOfOtherDebt
|
100000000 | |
CY2021Q1 | us-gaap |
Proceeds From Repayments Of Lines Of Credit
ProceedsFromRepaymentsOfLinesOfCredit
|
-8000000 | |
CY2020Q1 | us-gaap |
Proceeds From Repayments Of Lines Of Credit
ProceedsFromRepaymentsOfLinesOfCredit
|
15000000 | |
CY2021Q1 | us-gaap |
Payments Of Dividends Common Stock
PaymentsOfDividendsCommonStock
|
2412000 | |
CY2020Q1 | us-gaap |
Payments Of Dividends Common Stock
PaymentsOfDividendsCommonStock
|
2033000 | |
CY2021Q1 | us-gaap |
Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect
CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect
|
201564000 | |
CY2021Q1 | us-gaap |
Proceeds From Issuance Of Shares Under Incentive And Share Based Compensation Plans Including Stock Options
ProceedsFromIssuanceOfSharesUnderIncentiveAndShareBasedCompensationPlansIncludingStockOptions
|
1327000 | |
CY2020Q1 | us-gaap |
Proceeds From Issuance Of Shares Under Incentive And Share Based Compensation Plans Including Stock Options
ProceedsFromIssuanceOfSharesUnderIncentiveAndShareBasedCompensationPlansIncludingStockOptions
|
1157000 | |
CY2021Q1 | us-gaap |
Payments For Repurchase Of Common Stock
PaymentsForRepurchaseOfCommonStock
|
5659000 | |
CY2020Q1 | us-gaap |
Payments For Repurchase Of Common Stock
PaymentsForRepurchaseOfCommonStock
|
9302000 | |
CY2021Q1 | us-gaap |
Net Cash Provided By Used In Financing Activities
NetCashProvidedByUsedInFinancingActivities
|
371021000 | |
CY2020Q1 | us-gaap |
Net Cash Provided By Used In Financing Activities
NetCashProvidedByUsedInFinancingActivities
|
-9595000 | |
CY2020Q1 | us-gaap |
Financing Receivable Modifications Number Of Contracts2
FinancingReceivableModificationsNumberOfContracts2
|
7 | |
CY2020Q1 | us-gaap |
Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect
CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect
|
-171359000 | |
CY2020Q4 | us-gaap |
Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Including Disposal Group And Discontinued Operations
CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations
|
422766000 | |
CY2019Q4 | us-gaap |
Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Including Disposal Group And Discontinued Operations
CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations
|
346248000 | |
CY2021Q1 | us-gaap |
Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Including Disposal Group And Discontinued Operations
CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations
|
624330000 | |
CY2020Q1 | us-gaap |
Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Including Disposal Group And Discontinued Operations
CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations
|
174889000 | |
CY2021Q1 | us-gaap |
Interest Paid Net
InterestPaidNet
|
5969000 | |
CY2020Q1 | us-gaap |
Interest Paid Net
InterestPaidNet
|
12932000 | |
CY2021Q1 | us-gaap |
Operating Lease Payments
OperatingLeasePayments
|
870000 | |
CY2020Q1 | us-gaap |
Operating Lease Payments
OperatingLeasePayments
|
817000 | |
CY2021Q1 | us-gaap |
Right Of Use Asset Obtained In Exchange For Operating Lease Liability
RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability
|
502000 | |
CY2020Q1 | abtx |
Loans Transferred To Other Real Estate
LoansTransferredToOtherRealEstate
|
4280000 | |
CY2021Q1 | abtx |
Other Real Estate Transferred To Loans
OtherRealEstateTransferredToLoans
|
8125000 | |
CY2020Q1 | abtx |
Other Real Estate Transferred To Loans
OtherRealEstateTransferredToLoans
|
1615000 | |
CY2020Q1 | abtx |
Security Trades Not Yet Settled
SecurityTradesNotYetSettled
|
16939000 | |
CY2021Q1 | abtx |
Number Of Offices In Which Entity Operates
NumberOfOfficesInWhichEntityOperates
|
27 | |
CY2020Q1 | us-gaap |
Loans And Leases Receivable Allowance
LoansAndLeasesReceivableAllowance
|
34663000 | |
CY2020Q1 | abtx |
Allowance For Credit Losses On Unfunded Commitments
AllowanceForCreditLossesOnUnfundedCommitments
|
3866000 | |
CY2019Q4 | us-gaap |
Goodwill
Goodwill
|
223642000 | |
CY2020Q4 | us-gaap |
Goodwill
Goodwill
|
223642000 | |
CY2021Q1 | us-gaap |
Goodwill And Intangible Asset Impairment
GoodwillAndIntangibleAssetImpairment
|
0 | |
CY2021Q1 | us-gaap |
Goodwill
Goodwill
|
223642000 | |
CY2021Q1 | us-gaap |
Available For Sale Debt Securities Accumulated Gross Unrealized Loss Before Tax
AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax
|
4754000 | |
CY2021Q1 | us-gaap |
Available For Sale Securities Debt Securities
AvailableForSaleSecuritiesDebtSecurities
|
787516000 | |
CY2021Q1 | us-gaap |
Finite Lived Intangible Assets Amortization Expense Remainder Of Fiscal Year
FiniteLivedIntangibleAssetsAmortizationExpenseRemainderOfFiscalYear
|
2472000 | |
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 | |
CY2021Q1 | us-gaap |
Debt Securities Available For Sale Allowance For Credit Loss
DebtSecuritiesAvailableForSaleAllowanceForCreditLoss
|
0 | |
CY2021Q1 | us-gaap |
Finite Lived Intangible Assets Amortization Expense Next Twelve Months
FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths
|
3003000 | |
CY2021Q1 | us-gaap |
Finite Lived Intangible Assets Amortization Expense Year Two
FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo
|
2323000 | |
CY2021Q1 | us-gaap |
Finite Lived Intangible Assets Amortization Expense Year Three
FiniteLivedIntangibleAssetsAmortizationExpenseYearThree
|
2188000 | |
CY2021Q1 | us-gaap |
Finite Lived Intangible Assets Amortization Expense Year Four
FiniteLivedIntangibleAssetsAmortizationExpenseYearFour
|
2061000 | |
CY2021Q1 | abtx |
Finite Lived Intangible Assets Amortization Expense After Year Four
FiniteLivedIntangibleAssetsAmortizationExpenseAfterYearFour
|
5083000 | |
CY2021Q1 | us-gaap |
Finite Lived Intangible Assets Net
FiniteLivedIntangibleAssetsNet
|
17130000 | |
CY2021Q1 | us-gaap |
Available For Sale Debt Securities Amortized Cost Basis
AvailableForSaleDebtSecuritiesAmortizedCostBasis
|
757428000 | |
CY2021Q1 | us-gaap |
Available For Sale Debt Securities Accumulated Gross Unrealized Gain Before Tax
AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax
|
34842000 | |
CY2021Q1 | us-gaap |
Available For Sale Securities Debt Maturities Within One Year Amortized Cost
AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearAmortizedCost
|
805000 | |
CY2021Q1 | us-gaap |
Available For Sale Securities Debt Maturities Within One Year Fair Value
AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearFairValue
|
807000 | |
CY2021Q1 | us-gaap |
Available For Sale Securities Debt Maturities After One Through Five Years Amortized Cost
AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughFiveYearsAmortizedCost
|
14279000 | |
CY2021Q1 | us-gaap |
Available For Sale Securities Debt Maturities After One Through Five Years Fair Value
AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughFiveYearsFairValue
|
14910000 | |
CY2021Q1 | us-gaap |
Available For Sale Securities Debt Maturities After Five Through Ten Years Amortized Cost
AvailableForSaleSecuritiesDebtMaturitiesAfterFiveThroughTenYearsAmortizedCost
|
117273000 | |
CY2021Q1 | us-gaap |
Available For Sale Securities Debt Maturities After Five Through Ten Years Fair Value
AvailableForSaleSecuritiesDebtMaturitiesAfterFiveThroughTenYearsFairValue
|
121338000 | |
CY2021Q1 | us-gaap |
Available For Sale Securities Debt Maturities After Ten Years Amortized Cost
AvailableForSaleSecuritiesDebtMaturitiesAfterTenYearsAmortizedCost
|
374132000 | |
CY2021Q1 | us-gaap |
Available For Sale Securities Debt Maturities After Ten Years Fair Value
AvailableForSaleSecuritiesDebtMaturitiesAfterTenYearsFairValue
|
394751000 | |
CY2021Q1 | us-gaap |
Available For Sale Securities Debt Maturities Single Maturity Date Amortized Cost Basis
AvailableForSaleSecuritiesDebtMaturitiesSingleMaturityDateAmortizedCostBasis
|
506489000 | |
CY2021Q1 | us-gaap |
Available For Sale Securities Debt Maturities Single Maturity Date
AvailableForSaleSecuritiesDebtMaturitiesSingleMaturityDate
|
531806000 | |
CY2021Q1 | us-gaap |
Available For Sale Securities Debt Maturities Without Single Maturity Date Amortized Cost
AvailableForSaleSecuritiesDebtMaturitiesWithoutSingleMaturityDateAmortizedCost
|
250939000 | |
CY2021Q1 | us-gaap |
Available For Sale Securities Debt Maturities Without Single Maturity Date Fair Value
AvailableForSaleSecuritiesDebtMaturitiesWithoutSingleMaturityDateFairValue
|
255710000 | |
CY2021Q1 | us-gaap |
Available For Sale Debt Securities Amortized Cost Basis
AvailableForSaleDebtSecuritiesAmortizedCostBasis
|
757428000 | |
CY2021Q1 | us-gaap |
Available For Sale Securities Debt Securities
AvailableForSaleSecuritiesDebtSecurities
|
787516000 | |
CY2021Q1 | us-gaap |
Debt Securities Available For Sale Continuous Unrealized Loss Position Less Than12 Months
DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12Months
|
199727000 | |
CY2021Q1 | us-gaap |
Debt Securities Available For Sale Continuous Unrealized Loss Position Less Than12 Months Accumulated Loss
DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12MonthsAccumulatedLoss
|
4720000 | |
CY2021Q1 | us-gaap |
Debt Securities Available For Sale Continuous Unrealized Loss Position12 Months Or Longer
DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLonger
|
4074000 | |
CY2021Q1 | us-gaap |
Debt Securities Available For Sale Continuous Unrealized Loss Position12 Months Or Longer Accumulated Loss
DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLongerAccumulatedLoss
|
34000 | |
CY2021Q1 | us-gaap |
Debt Securities Available For Sale Unrealized Loss Position
DebtSecuritiesAvailableForSaleUnrealizedLossPosition
|
203801000 | |
CY2021Q1 | us-gaap |
Debt Securities Available For Sale Unrealized Loss Position Accumulated Loss
DebtSecuritiesAvailableForSaleUnrealizedLossPositionAccumulatedLoss
|
4754000 | |
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 | |
CY2021Q1 | us-gaap |
Proceeds From Sale Of Available For Sale Securities Debt
ProceedsFromSaleOfAvailableForSaleSecuritiesDebt
|
4900000 | |
CY2021Q1 | us-gaap |
Available For Sale Securities Gross Realized Gains
AvailableForSaleSecuritiesGrossRealizedGains
|
49000 | |
CY2020Q1 | us-gaap |
Proceeds From Sale Of Available For Sale Securities Debt
ProceedsFromSaleOfAvailableForSaleSecuritiesDebt
|
29700000 | |
CY2021Q1 | us-gaap |
Loans And Leases Receivable Net Reported Amount
LoansAndLeasesReceivableNetReportedAmount
|
4606411000 | |
CY2020Q4 | us-gaap |
Loans And Leases Receivable Net Reported Amount
LoansAndLeasesReceivableNetReportedAmount
|
4438591000 | |
CY2020Q1 | us-gaap |
Available For Sale Securities Gross Realized Gains
AvailableForSaleSecuritiesGrossRealizedGains
|
298000 | |
CY2020Q1 | us-gaap |
Available For Sale Securities Gross Realized Losses
AvailableForSaleSecuritiesGrossRealizedLosses
|
104000 | |
CY2020Q1 | us-gaap |
Available For Sale Securities Gross Realized Gain Loss Net
AvailableForSaleSecuritiesGrossRealizedGainLossNet
|
194000 | |
CY2021Q1 | us-gaap |
Security Owned And Pledged As Collateral Fair Value
SecurityOwnedAndPledgedAsCollateralFairValue
|
18500000 | |
CY2020Q4 | us-gaap |
Security Owned And Pledged As Collateral Fair Value
SecurityOwnedAndPledgedAsCollateralFairValue
|
18500000 | |
CY2021Q1 | us-gaap |
Loans And Leases Receivable Impaired Nonperforming Accrual Of Interest
LoansAndLeasesReceivableImpairedNonperformingAccrualOfInterest
|
33500000 | |
CY2021Q1 | us-gaap |
Financing Receivable Recorded Investment Nonaccrual Status
FinancingReceivableRecordedInvestmentNonaccrualStatus
|
35051000 | |
CY2021Q1 | us-gaap |
Loans And Leases Receivable Gross Carrying Amount
LoansAndLeasesReceivableGrossCarryingAmount
|
4659169000 | |
CY2020Q4 | us-gaap |
Loans And Leases Receivable Gross Carrying Amount
LoansAndLeasesReceivableGrossCarryingAmount
|
4491764000 | |
CY2021Q1 | us-gaap |
Loans And Leases Receivable Allowance
LoansAndLeasesReceivableAllowance
|
52758000 | |
CY2020Q4 | us-gaap |
Loans And Leases Receivable Allowance
LoansAndLeasesReceivableAllowance
|
53173000 | |
CY2021Q1 | us-gaap |
Loans And Leases Receivable Allowance
LoansAndLeasesReceivableAllowance
|
52758000 | |
CY2020Q4 | us-gaap |
Loans And Leases Receivable Impaired Nonperforming Accrual Of Interest
LoansAndLeasesReceivableImpairedNonperformingAccrualOfInterest
|
34500000 | |
CY2021Q1 | us-gaap |
Financing Receivable Recorded Investment Past Due
FinancingReceivableRecordedInvestmentPastDue
|
21162000 | |
CY2019Q4 | us-gaap |
Loans And Leases Receivable Allowance
LoansAndLeasesReceivableAllowance
|
29438000 | |
CY2021Q1 | us-gaap |
Financing Receivable Recorded Investment Current
FinancingReceivableRecordedInvestmentCurrent
|
4602956000 | |
CY2021Q1 | us-gaap |
Loans And Leases Receivable Gross Carrying Amount
LoansAndLeasesReceivableGrossCarryingAmount
|
4659169000 | |
CY2021Q1 | us-gaap |
Financing Receivable Originated In Fiscal Year Before Latest Fiscal Year
FinancingReceivableOriginatedInFiscalYearBeforeLatestFiscalYear
|
1710665000 | |
CY2021Q1 | us-gaap |
Financing Receivable Originated Two Years Before Latest Fiscal Year
FinancingReceivableOriginatedTwoYearsBeforeLatestFiscalYear
|
651803000 | |
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 | |
CY2021Q1 | us-gaap |
Financing Receivable Originated In Current Fiscal Year
FinancingReceivableOriginatedInCurrentFiscalYear
|
657638000 | |
CY2021Q1 | us-gaap |
Financing Receivable Originated Three Years Before Latest Fiscal Year
FinancingReceivableOriginatedThreeYearsBeforeLatestFiscalYear
|
437892000 | |
CY2021Q1 | us-gaap |
Financing Receivable Originated Four Years Before Latest Fiscal Year
FinancingReceivableOriginatedFourYearsBeforeLatestFiscalYear
|
361494000 | |
CY2021Q1 | us-gaap |
Financing Receivable Originated Five Or More Years Before Latest Fiscal Year
FinancingReceivableOriginatedFiveOrMoreYearsBeforeLatestFiscalYear
|
411238000 | |
CY2021Q1 | us-gaap |
Financing Receivable Revolving
FinancingReceivableRevolving
|
428439000 | |
CY2021Q1 | us-gaap |
Notes Receivable Gross
NotesReceivableGross
|
4659169000 | |
CY2020Q4 | us-gaap |
Notes Receivable Gross
NotesReceivableGross
|
4491764000 | |
CY2020Q4 | us-gaap |
Loans And Leases Receivable Allowance
LoansAndLeasesReceivableAllowance
|
53173000 | |
CY2021Q1 | us-gaap |
Provision For Loan Losses Expensed
ProvisionForLoanLossesExpensed
|
-70000 | |
CY2021Q1 | us-gaap |
Allowance For Loan And Lease Losses Write Offs
AllowanceForLoanAndLeaseLossesWriteOffs
|
404000 | |
CY2021Q1 | us-gaap |
Allowance For Loan And Lease Loss Recovery Of Bad Debts
AllowanceForLoanAndLeaseLossRecoveryOfBadDebts
|
59000 | |
CY2021Q1 | us-gaap |
Allowance For Loan And Lease Losses Writeoffs Net
AllowanceForLoanAndLeaseLossesWriteoffsNet
|
345000 | |
CY2020Q1 | us-gaap |
Provision For Loan Losses Expensed
ProvisionForLoanLossesExpensed
|
10990000 | |
CY2020Q1 | us-gaap |
Allowance For Loan And Lease Losses Write Offs
AllowanceForLoanAndLeaseLossesWriteOffs
|
3132000 | |
CY2020Q1 | us-gaap |
Allowance For Loan And Lease Loss Recovery Of Bad Debts
AllowanceForLoanAndLeaseLossRecoveryOfBadDebts
|
215000 | |
CY2020Q1 | us-gaap |
Allowance For Loan And Lease Losses Writeoffs Net
AllowanceForLoanAndLeaseLossesWriteoffsNet
|
2917000 | |
CY2020Q1 | us-gaap |
Loans And Leases Receivable Allowance
LoansAndLeasesReceivableAllowance
|
37511000 | |
CY2021Q1 | us-gaap |
Financing Receivable Allowance For Credit Losses
FinancingReceivableAllowanceForCreditLosses
|
16178000 | |
CY2020Q4 | us-gaap |
Financing Receivable Allowance For Credit Losses
FinancingReceivableAllowanceForCreditLosses
|
8683000 | |
CY2021Q1 | abtx |
Nonaccrual Loans With No Related Allowance
NonaccrualLoansWithNoRelatedAllowance
|
13882000 | |
CY2021Q1 | abtx |
Nonaccrual Loans With Related Allowance
NonaccrualLoansWithRelatedAllowance
|
21169000 | |
CY2021Q1 | us-gaap |
Financing Receivable Recorded Investment Nonaccrual Status
FinancingReceivableRecordedInvestmentNonaccrualStatus
|
35051000 | |
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 | |
CY2021Q1 | us-gaap |
Financing Receivable Modifications Recorded Investment
FinancingReceivableModificationsRecordedInvestment
|
25200000 | |
CY2020Q4 | us-gaap |
Financing Receivable Modifications Recorded Investment
FinancingReceivableModificationsRecordedInvestment
|
25800000 | |
CY2021Q1 | abtx |
Allowance For Credit Losses Change In Method Of Calculating Impairment1
AllowanceForCreditLossesChangeInMethodOfCalculatingImpairment1
|
2900000 | |
CY2020Q4 | abtx |
Allowance For Credit Losses Change In Method Of Calculating Impairment1
AllowanceForCreditLossesChangeInMethodOfCalculatingImpairment1
|
3300000 | |
CY2021Q1 | us-gaap |
Financing Receivable Modifications Number Of Contracts2
FinancingReceivableModificationsNumberOfContracts2
|
1 | |
CY2021Q1 | us-gaap |
Financing Receivable Modifications Pre Modification Recorded Investment2
FinancingReceivableModificationsPreModificationRecordedInvestment2
|
545000 | |
CY2021Q1 | us-gaap |
Financing Receivable Modifications Post Modification Recorded Investment2
FinancingReceivableModificationsPostModificationRecordedInvestment2
|
545000 | |
CY2020Q1 | us-gaap |
Financing Receivable Modifications Pre Modification Recorded Investment2
FinancingReceivableModificationsPreModificationRecordedInvestment2
|
1252000 | |
CY2020Q1 | us-gaap |
Financing Receivable Modifications Post Modification Recorded Investment2
FinancingReceivableModificationsPostModificationRecordedInvestment2
|
1252000 | |
CY2020Q1 | us-gaap |
Financing Receivable Modifications Subsequent Default Number Of Contracts1
FinancingReceivableModificationsSubsequentDefaultNumberOfContracts1
|
4 | |
CY2020Q4 | us-gaap |
Operating Lease Right Of Use Asset
OperatingLeaseRightOfUseAsset
|
11610000 | |
CY2021Q1 | us-gaap |
Operating Lease Liability
OperatingLeaseLiability
|
11625000 | |
CY2021Q1 | us-gaap |
Operating Lease Right Of Use Asset
OperatingLeaseRightOfUseAsset
|
11399000 | |
CY2021Q1 | us-gaap |
Financing Receivables Impaired Troubled Debt Restructuring Write Down
FinancingReceivablesImpairedTroubledDebtRestructuringWriteDown
|
0 | |
CY2020Q1 | us-gaap |
Financing Receivables Impaired Troubled Debt Restructuring Write Down
FinancingReceivablesImpairedTroubledDebtRestructuringWriteDown
|
394000 | |
CY2021Q1 | us-gaap |
Financing Receivable Modifications Subsequent Default Number Of Contracts1
FinancingReceivableModificationsSubsequentDefaultNumberOfContracts1
|
1 | |
CY2021Q1 | us-gaap |
Financing Receivable Modifications Subsequent Default Recorded Investment1
FinancingReceivableModificationsSubsequentDefaultRecordedInvestment1
|
174000 | |
CY2020Q1 | us-gaap |
Financing Receivable Modifications Subsequent Default Recorded Investment1
FinancingReceivableModificationsSubsequentDefaultRecordedInvestment1
|
441000000 | |
CY2021Q1 | us-gaap |
Financing Receivable Modifications Post Modification Recorded Investment2
FinancingReceivableModificationsPostModificationRecordedInvestment2
|
545000 | |
CY2020Q1 | us-gaap |
Financing Receivable Modifications Post Modification Recorded Investment2
FinancingReceivableModificationsPostModificationRecordedInvestment2
|
1300000 | |
CY2021Q1 | us-gaap |
Loans And Leases Receivable Gross Carrying Amount
LoansAndLeasesReceivableGrossCarryingAmount
|
4659169000 | |
CY2021Q1 | abtx |
Number Of Leased Branch Locations And Office Space
NumberOfLeasedBranchLocationsAndOfficeSpace
|
15 | |
CY2020Q4 | us-gaap |
Operating Lease Liability
OperatingLeaseLiability
|
11850000 | |
CY2021Q1 | us-gaap |
Operating Lease Weighted Average Discount Rate Percent
OperatingLeaseWeightedAverageDiscountRatePercent
|
0.0277 | |
CY2020Q4 | us-gaap |
Operating Lease Weighted Average Discount Rate Percent
OperatingLeaseWeightedAverageDiscountRatePercent
|
0.0286 | |
CY2021Q1 | us-gaap |
Operating Lease Cost
OperatingLeaseCost
|
873000 | |
CY2020Q1 | us-gaap |
Operating Lease Cost
OperatingLeaseCost
|
799000 | |
CY2021Q1 | us-gaap |
Short Term Lease Cost
ShortTermLeaseCost
|
15000 | |
CY2020Q1 | us-gaap |
Short Term Lease Cost
ShortTermLeaseCost
|
36000 | |
CY2021Q1 | us-gaap |
Sublease Income
SubleaseIncome
|
18000 | |
CY2020Q1 | us-gaap |
Sublease Income
SubleaseIncome
|
18000 | |
CY2021Q1 | us-gaap |
Lease Cost
LeaseCost
|
870000 | |
CY2020Q1 | us-gaap |
Lease Cost
LeaseCost
|
817000 | |
CY2021Q1 | us-gaap |
Lessee Operating Lease Liability Payments Due Next Twelve Months
LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths
|
3132000 | |
CY2020Q4 | us-gaap |
Lessee Operating Lease Liability Payments Due Next Twelve Months
LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths
|
3068000 | |
CY2021Q1 | us-gaap |
Lessee Operating Lease Liability Payments Due Year Two
LesseeOperatingLeaseLiabilityPaymentsDueYearTwo
|
2539000 | |
CY2020Q4 | us-gaap |
Lessee Operating Lease Liability Payments Due Year Two
LesseeOperatingLeaseLiabilityPaymentsDueYearTwo
|
2664000 | |
CY2021Q1 | us-gaap |
Lessee Operating Lease Liability Payments Due Year Three
LesseeOperatingLeaseLiabilityPaymentsDueYearThree
|
2120000 | |
CY2020Q4 | us-gaap |
Lessee Operating Lease Liability Payments Due Year Three
LesseeOperatingLeaseLiabilityPaymentsDueYearThree
|
2056000 | |
CY2021Q1 | us-gaap |
Lessee Operating Lease Liability Payments Due Year Four
LesseeOperatingLeaseLiabilityPaymentsDueYearFour
|
1490000 | |
CY2020Q4 | us-gaap |
Lessee Operating Lease Liability Payments Due Year Four
LesseeOperatingLeaseLiabilityPaymentsDueYearFour
|
1591000 | |
CY2021Q1 | us-gaap |
Lessee Operating Lease Liability Payments Due Year Five
LesseeOperatingLeaseLiabilityPaymentsDueYearFive
|
1069000 | |
CY2020Q4 | us-gaap |
Lessee Operating Lease Liability Payments Due Year Five
LesseeOperatingLeaseLiabilityPaymentsDueYearFive
|
1057000 | |
CY2021Q1 | us-gaap |
Interest Bearing Domestic Deposit Brokered
InterestBearingDomesticDepositBrokered
|
433200000 | |
CY2020Q4 | us-gaap |
Deposits Fair Value Disclosure
DepositsFairValueDisclosure
|
4988482000 | |
CY2020Q4 | us-gaap |
Lessee Operating Lease Liability Undiscounted Excess Amount
LesseeOperatingLeaseLiabilityUndiscountedExcessAmount
|
941000 | |
CY2021Q1 | us-gaap |
Lessee Operating Lease Liability Payments Due After Year Five
LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive
|
2144000 | |
CY2020Q4 | us-gaap |
Lessee Operating Lease Liability Payments Due After Year Five
LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive
|
2355000 | |
CY2021Q1 | us-gaap |
Lessee Operating Lease Liability Payments Due
LesseeOperatingLeaseLiabilityPaymentsDue
|
12494000 | |
CY2020Q4 | us-gaap |
Lessee Operating Lease Liability Payments Due
LesseeOperatingLeaseLiabilityPaymentsDue
|
12791000 | |
CY2021Q1 | us-gaap |
Lessee Operating Lease Liability Undiscounted Excess Amount
LesseeOperatingLeaseLiabilityUndiscountedExcessAmount
|
869000 | |
CY2021Q1 | us-gaap |
Operating Lease Liability
OperatingLeaseLiability
|
11625000 | |
CY2020Q4 | us-gaap |
Operating Lease Liability
OperatingLeaseLiability
|
11850000 | |
CY2021Q1 | us-gaap |
Cash And Cash Equivalents Fair Value Disclosure
CashAndCashEquivalentsFairValueDisclosure
|
624330000 | |
CY2021Q1 | us-gaap |
Available For Sale Securities
AvailableForSaleSecurities
|
787516000 | |
CY2021Q1 | abtx |
Loans Held For Investment Net Of Allowance Fair Value
LoansHeldForInvestmentNetOfAllowanceFairValue
|
4606411000 | |
CY2021Q1 | us-gaap |
Interest Rate Derivative Liabilities At Fair Value
InterestRateDerivativeLiabilitiesAtFairValue
|
572000 | |
CY2021Q1 | abtx |
Accrued Interest Receivable Fair Value
AccruedInterestReceivableFairValue
|
38632000 | |
CY2021Q1 | us-gaap |
Deposits Fair Value Disclosure
DepositsFairValueDisclosure
|
5374189000 | |
CY2021Q1 | abtx |
Accrued Interest Payable Fair Value
AccruedInterestPayableFairValue
|
3862000 | |
CY2021Q1 | us-gaap |
Debt Instrument Fair Value
DebtInstrumentFairValue
|
147517000 | |
CY2021Q1 | us-gaap |
Fair Value Liabilities Measured On Recurring Basis Subordinated Debt Obligations
FairValueLiabilitiesMeasuredOnRecurringBasisSubordinatedDebtObligations
|
108453000 | |
CY2020Q4 | us-gaap |
Cash And Cash Equivalents Fair Value Disclosure
CashAndCashEquivalentsFairValueDisclosure
|
422766000 | |
CY2020Q4 | us-gaap |
Available For Sale Securities
AvailableForSaleSecurities
|
772890000 | |
CY2020Q4 | abtx |
Loans Held For Investment Net Of Allowance Fair Value
LoansHeldForInvestmentNetOfAllowanceFairValue
|
4438591000 | |
CY2020Q4 | abtx |
Accrued Interest Receivable Fair Value
AccruedInterestReceivableFairValue
|
40053000 | |
CY2020Q4 | us-gaap |
Interest Rate Derivative Liabilities At Fair Value
InterestRateDerivativeLiabilitiesAtFairValue
|
1252000 | |
CY2020Q4 | abtx |
Accrued Interest Payable Fair Value
AccruedInterestPayableFairValue
|
2701000 | |
CY2020Q4 | us-gaap |
Debt Instrument Fair Value
DebtInstrumentFairValue
|
155515000 | |
CY2020Q4 | us-gaap |
Fair Value Liabilities Measured On Recurring Basis Subordinated Debt Obligations
FairValueLiabilitiesMeasuredOnRecurringBasisSubordinatedDebtObligations
|
108322000 | |
CY2021Q1 | us-gaap |
Time Deposits At Or Above Fdic Insurance Limit
TimeDepositsAtOrAboveFDICInsuranceLimit
|
250000 | |
CY2020Q4 | us-gaap |
Time Deposits At Or Above Fdic Insurance Limit
TimeDepositsAtOrAboveFDICInsuranceLimit
|
250000 | |
CY2021Q1 | abtx |
Time Deposits250000 Or More
TimeDeposits250000OrMore
|
782100000 | |
CY2020Q4 | abtx |
Time Deposits250000 Or More
TimeDeposits250000OrMore
|
726800000 | |
CY2021Q1 | us-gaap |
Time Deposit Maturities Year One
TimeDepositMaturitiesYearOne
|
868760000 | |
CY2021Q1 | us-gaap |
Time Deposit Maturities Year Two
TimeDepositMaturitiesYearTwo
|
367037000 | |
CY2021Q1 | us-gaap |
Time Deposit Maturities Year Three
TimeDepositMaturitiesYearThree
|
68547000 | |
CY2021Q1 | us-gaap |
Time Deposit Maturities Year Four
TimeDepositMaturitiesYearFour
|
28664000 | |
CY2021Q1 | us-gaap |
Time Deposit Maturities Year Five
TimeDepositMaturitiesYearFive
|
28527000 | |
CY2021Q1 | us-gaap |
Time Deposits
TimeDeposits
|
1361535000 | |
CY2020Q4 | us-gaap |
Interest Bearing Domestic Deposit Brokered
InterestBearingDomesticDepositBrokered
|
453800000 | |
CY2021Q1 | us-gaap |
Junior Subordinated Debenture Owed To Unconsolidated Subsidiary Trust
JuniorSubordinatedDebentureOwedToUnconsolidatedSubsidiaryTrust
|
11300000 | |
CY2021Q1 | us-gaap |
Junior Subordinated Debenture Owed To Unconsolidated Subsidiary Trust
JuniorSubordinatedDebentureOwedToUnconsolidatedSubsidiaryTrust
|
11341000 | |
CY2021Q1 | us-gaap |
Income Tax Expense Benefit
IncomeTaxExpenseBenefit
|
3900000 | |
CY2020Q1 | us-gaap |
Income Tax Expense Benefit
IncomeTaxExpenseBenefit
|
843000 | |
CY2021Q1 | us-gaap |
Effective Income Tax Rate Continuing Operations
EffectiveIncomeTaxRateContinuingOperations
|
0.177 | |
CY2020Q1 | us-gaap |
Effective Income Tax Rate Continuing Operations
EffectiveIncomeTaxRateContinuingOperations
|
0.193 | |
CY2021Q1 | us-gaap |
Unrecognized Tax Benefits Income Tax Penalties And Interest Expense
UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestExpense
|
0 | |
CY2021Q1 | us-gaap |
Capital To Risk Weighted Assets
CapitalToRiskWeightedAssets
|
0.1572 | |
CY2021Q1 | us-gaap |
Share Based Compensation Arrangement By Share Based Payment Award Number Of Shares Authorized
ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAuthorized
|
3200000 | |
CY2021Q1 | us-gaap |
Allocated Share Based Compensation Expense
AllocatedShareBasedCompensationExpense
|
820000 | |
CY2020Q1 | us-gaap |
Allocated Share Based Compensation Expense
AllocatedShareBasedCompensationExpense
|
804000 | |
CY2020Q4 | us-gaap |
Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number
ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber
|
469000 | |
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 | |
CY2021Q1 | us-gaap |
Stock Issued During Period Shares Stock Options Exercised
StockIssuedDuringPeriodSharesStockOptionsExercised
|
71000 | |
CY2021Q1 | us-gaap |
Share Based Compensation Arrangements By Share Based Payment Award Options Exercises In Period Weighted Average Exercise Price
ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice
|
18.77 | |
CY2021Q1 | us-gaap |
Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number
ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber
|
398000 | |
CY2021Q1 | us-gaap |
Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Exercise Price
ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice
|
21.45 | |
CY2021Q1 | us-gaap |
Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Intrinsic Value
ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue
|
7573000 | |
CY2021Q1 | us-gaap |
Share Based Compensation Arrangement By Share Based Payment Award Options Exercisable Number
ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber
|
389000 | |
CY2021Q1 | us-gaap |
Share Based Compensation Arrangement By Share Based Payment Award Options Exercisable Weighted Average Exercise Price
ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice
|
21.01 | |
CY2021Q1 | us-gaap |
Sharebased Compensation Arrangement By Sharebased Payment Award Options Exercisable Intrinsic Value1
SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableIntrinsicValue1
|
7604000 | |
CY2021Q1 | abtx |
Offbalance Sheet Financial Instrument Fixed Rate Contractual Amount
OffbalanceSheetFinancialInstrumentFixedRateContractualAmount
|
936049000 | |
CY2021Q1 | abtx |
Offbalance Sheet Financial Instrument Variable Rate Contractual Amount
OffbalanceSheetFinancialInstrumentVariableRateContractualAmount
|
513659000 | |
CY2020Q4 | abtx |
Offbalance Sheet Financial Instrument Fixed Rate Contractual Amount
OffbalanceSheetFinancialInstrumentFixedRateContractualAmount
|
771190000 | |
CY2020Q4 | abtx |
Offbalance Sheet Financial Instrument Variable Rate Contractual Amount
OffbalanceSheetFinancialInstrumentVariableRateContractualAmount
|
488070000 | |
CY2021Q1 | abtx |
Commitments To Make Loans Period
CommitmentsToMakeLoansPeriod
|
P120D | |
CY2021Q1 | abtx |
Off Balance Sheet Fixed Rate Loan Commitments Weighted Average Maturity
OffBalanceSheetFixedRateLoanCommitmentsWeightedAverageMaturity
|
P3Y6M10D | |
CY2020 | abtx |
Off Balance Sheet Fixed Rate Loan Commitments Weighted Average Maturity
OffBalanceSheetFixedRateLoanCommitmentsWeightedAverageMaturity
|
P3Y6M10D | |
CY2021Q1 | abtx |
Capital Conservation Buffer
CapitalConservationBuffer
|
0.025 | |
CY2021Q1 | us-gaap |
Capital
Capital
|
656264000 | |
CY2021Q1 | us-gaap |
Tier One Leverage Capital Required For Capital Adequacy
TierOneLeverageCapitalRequiredForCapitalAdequacy
|
235803000 | |
CY2021Q1 | us-gaap |
Capital Required For Capital Adequacy
CapitalRequiredForCapitalAdequacy
|
333986000 | |
CY2021Q1 | us-gaap |
Capital Required For Capital Adequacy To Risk Weighted Assets
CapitalRequiredForCapitalAdequacyToRiskWeightedAssets
|
0.0800 | |
CY2021Q1 | us-gaap |
Excess Capital
ExcessCapital
|
438356000 | |
CY2021Q1 | us-gaap |
Excess Capital To Risk Weighted Assets
ExcessCapitalToRiskWeightedAssets
|
0.1050 | |
CY2021Q1 | abtx |
Common Equity Tier One Risk Based Capital
CommonEquityTierOneRiskBasedCapital
|
495552000 | |
CY2021Q1 | abtx |
Common Equity Tier One Risk Based Capital To Risk Weighted Assets
CommonEquityTierOneRiskBasedCapitalToRiskWeightedAssets
|
0.1187 | |
CY2021Q1 | abtx |
Common Equity Tier One Risk Based Capital Required For Capital Adequacy
CommonEquityTierOneRiskBasedCapitalRequiredForCapitalAdequacy
|
187867000 | |
CY2021Q1 | abtx |
Common Equity Tier One Risk Based Capital Required For Capital Adequacy To Risk Weighted
CommonEquityTierOneRiskBasedCapitalRequiredForCapitalAdequacyToRiskWeighted
|
0.0450 | |
CY2021Q1 | abtx |
Excess Common Equity Tier One Risk Based Capital
ExcessCommonEquityTierOneRiskBasedCapital
|
292237000 | |
CY2021Q1 | abtx |
Excess Common Equity Tier One Risk Based Capitalto Risk Weighted Assets
ExcessCommonEquityTierOneRiskBasedCapitaltoRiskWeightedAssets
|
0.0700 | |
CY2021Q1 | us-gaap |
Tier One Risk Based Capital
TierOneRiskBasedCapital
|
505218000 | |
CY2021Q1 | us-gaap |
Tier One Risk Based Capital To Risk Weighted Assets
TierOneRiskBasedCapitalToRiskWeightedAssets
|
0.1210 | |
CY2021Q1 | us-gaap |
Tier One Risk Based Capital Required For Capital Adequacy
TierOneRiskBasedCapitalRequiredForCapitalAdequacy
|
250489000 | |
CY2021Q1 | us-gaap |
Tier One Risk Based Capital Required For Capital Adequacy To Risk Weighted Assets
TierOneRiskBasedCapitalRequiredForCapitalAdequacyToRiskWeightedAssets
|
0.0600 | |
CY2021Q1 | us-gaap |
Excess Tier One Risk Based Capital
ExcessTierOneRiskBasedCapital
|
354860000 | |
CY2021Q1 | us-gaap |
Excess Tier One Risk Based Capital To Risk Weighted Assets
ExcessTierOneRiskBasedCapitalToRiskWeightedAssets
|
0.0850 | |
CY2021Q1 | us-gaap |
Tier One Leverage Capital
TierOneLeverageCapital
|
505218000 | |
CY2021Q1 | us-gaap |
Tier One Leverage Capital To Average Assets
TierOneLeverageCapitalToAverageAssets
|
0.0857 | |
CY2021Q1 | us-gaap |
Tier One Leverage Capital Required For Capital Adequacy To Average Assets
TierOneLeverageCapitalRequiredForCapitalAdequacyToAverageAssets
|
0.0400 | |
CY2021Q1 | us-gaap |
Excess Tier One Leverage Capital
ExcessTierOneLeverageCapital
|
235803000 | |
CY2021Q1 | us-gaap |
Excess Tier One Leverage Capital To Average Assets
ExcessTierOneLeverageCapitalToAverageAssets
|
0.0400 | |
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 | |
CY2021Q1 | us-gaap |
Net Income Loss
NetIncomeLoss
|
18010000 | |
CY2020Q1 | us-gaap |
Net Income Loss
NetIncomeLoss
|
3516000 | |
CY2021Q1 | us-gaap |
Weighted Average Number Of Shares Outstanding Basic
WeightedAverageNumberOfSharesOutstandingBasic
|
20140000 | |
CY2021Q1 | us-gaap |
Earnings Per Share Basic
EarningsPerShareBasic
|
0.89 | |
CY2020Q1 | us-gaap |
Weighted Average Number Of Shares Outstanding Basic
WeightedAverageNumberOfSharesOutstandingBasic
|
20411000 | |
CY2021Q1 | us-gaap |
Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount
AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount
|
0 | |
CY2020Q1 | us-gaap |
Earnings Per Share Basic
EarningsPerShareBasic
|
0.17 | |
CY2021Q1 | us-gaap |
Incremental Common Shares Attributable To Share Based Payment Arrangements
IncrementalCommonSharesAttributableToShareBasedPaymentArrangements
|
202000 | |
CY2020Q1 | us-gaap |
Incremental Common Shares Attributable To Share Based Payment Arrangements
IncrementalCommonSharesAttributableToShareBasedPaymentArrangements
|
279000 | |
CY2021Q1 | us-gaap |
Weighted Average Number Of Diluted Shares Outstanding
WeightedAverageNumberOfDilutedSharesOutstanding
|
20342000 | |
CY2021Q1 | us-gaap |
Earnings Per Share Diluted
EarningsPerShareDiluted
|
0.89 | |
CY2020Q1 | us-gaap |
Weighted Average Number Of Diluted Shares Outstanding
WeightedAverageNumberOfDilutedSharesOutstanding
|
20690000 | |
CY2020Q1 | us-gaap |
Earnings Per Share Diluted
EarningsPerShareDiluted
|
0.17 |