$TCBK
Trico Bancshares Stock $tcbk

$tcbk Overview Financials Valuation SEC Filings Company Website

2020 Q1 Form 10-Q Financial Statement

#000035617120000048 Filed on May 11, 2020

Income Statement

Concept	2020 Q1	2019 Q1
Revenue	$66.52M	$67.46M
YoY Change	-1.39%	43.16%
Cost Of Revenue
YoY Change
Gross Profit
YoY Change
Gross Profit Margin
Selling, General & Admin
YoY Change
% of Gross Profit
Research & Development
YoY Change
% of Gross Profit
Depreciation & Amortization	$3.000M	$3.200M
YoY Change	-6.25%	68.42%
% of Gross Profit
Operating Expenses
YoY Change
Operating Profit
YoY Change
Interest Expense	$3.325M	$3.587M
YoY Change	-7.3%	68.01%
% of Operating Profit
Other Income/Expense, Net
YoY Change
Pretax Income	$22.19M	$31.82M
YoY Change	-30.26%	64.45%
Income Tax	$6.072M	$9.095M
% Of Pretax Income	27.36%	28.58%
Net Earnings	$16.12M	$22.73M
YoY Change	-29.06%	63.38%
Net Earnings / Revenue	24.24%	33.69%
Basic Earnings Per Share	$0.53	$0.75
Diluted Earnings Per Share	$0.53	$0.74
COMMON SHARES
Basic Shares Outstanding	30.40M shares	30.42M shares
Diluted Shares Outstanding	30.52M shares	30.66M shares

Balance Sheet

Concept	2020 Q1	2019 Q1
SHORT-TERM ASSETS
Cash & Short-Term Investments
YoY Change
Cash & Equivalents	$185.5M	$318.7M
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	$86.30M	$89.28M
YoY Change	-3.33%	52.46%
Goodwill	$220.9M	$221.0M
YoY Change	-0.05%	243.6%
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	$6.474B	$6.472B
YoY Change	0.04%	35.4%
SHORT-TERM LIABILITIES
YoY Change
Accounts Payable	$2.000M	$2.200M
YoY Change	-9.09%	120.0%
Accrued Expenses	$30.00M	$30.20M
YoY Change	-0.66%	151.67%
Deferred Revenue
YoY Change
Short-Term Debt	$19.30M	$12.50M
YoY Change	54.4%	-26.47%
Long-Term Debt Due
YoY Change
Total Short-Term Liabilities	$32.00M	$32.40M
YoY Change	-1.23%	149.23%
LONG-TERM LIABILITIES
Long-Term Debt	$57.30M	$57.10M
YoY Change	0.35%	0.35%
Other Long-Term Liabilities	$96.60M	$86.40M
YoY Change	11.81%	2079.62%
Total Long-Term Liabilities	$153.9M	$143.5M
YoY Change	7.25%	3520.08%
TOTAL LIABILITIES
Total Short-Term Liabilities	$32.00M	$32.40M
Total Long-Term Liabilities	$153.9M	$143.5M
Total Liabilities	$5.608B	$5.619B
YoY Change	-0.19%	31.44%
SHAREHOLDERS EQUITY
Retained Earnings	$356.9M	$319.9M
YoY Change	11.59%	20.14%
Common Stock	$534.6M	$542.3M
YoY Change	-1.42%	111.66%
Preferred Stock
YoY Change
Treasury Stock (at cost)
YoY Change
Treasury Stock Shares
Shareholders Equity	$866.4M	$853.3M
YoY Change
Total Liabilities & Shareholders Equity	$6.474B	$6.472B
YoY Change	0.04%	35.4%

Cashflow Statement

Concept	2020 Q1	2019 Q1
OPERATING ACTIVITIES
Net Income	$16.12M	$22.73M
YoY Change	-29.06%	63.38%
Depreciation, Depletion And Amortization	$3.000M	$3.200M
YoY Change	-6.25%	68.42%
Cash From Operating Activities	$33.62M	$22.06M
YoY Change	52.42%	-7.0%
INVESTING ACTIVITIES
Capital Expenditures	$761.0K	$1.650M
YoY Change	-53.88%	-25.0%
Acquisitions
YoY Change
Other Investing Activities	-$136.6M	$16.50M
YoY Change	-927.88%	-128.35%
Cash From Investing Activities	-$137.4M	$14.87M
YoY Change	-1024.23%	-124.61%
FINANCING ACTIVITIES
Cash Dividend Paid
YoY Change
Common Stock Issuance & Retirement, Net	$17.15M	$388.0K
YoY Change	4319.33%
Debt Paid & Issued, Net
YoY Change
Cash From Financing Activities	$12.75M	$54.25M
YoY Change	-76.5%	280.86%
NET CHANGE
Cash From Operating Activities	$33.62M	$22.06M
Cash From Investing Activities	-$137.4M	$14.87M
Cash From Financing Activities	$12.75M	$54.25M
Net Change In Cash	-$91.04M	$91.18M
YoY Change	-199.85%	-506.14%
FREE CASH FLOW
Cash From Operating Activities	$33.62M	$22.06M
Capital Expenditures	$761.0K	$1.650M
Free Cash Flow	$32.86M	$20.41M
YoY Change	61.02%	-5.15%

Facts In Submission

Frame	Concept Type	Concept / XBRL Key	Value	Unit
CY2020Q1	dei	Amendment Flag AmendmentFlag	false
CY2020Q1	dei	Document Fiscal Year Focus DocumentFiscalYearFocus	2020
CY2020Q1	dei	Document Fiscal Period Focus DocumentFiscalPeriodFocus	Q1
CY2020Q1	dei	Current Fiscal Year End Date CurrentFiscalYearEndDate	--12-31
CY2020Q1	dei	Entity Central Index Key EntityCentralIndexKey	0000356171
CY2020Q1	dei	Document Type DocumentType	10-Q
CY2020Q1	dei	Document Quarterly Report DocumentQuarterlyReport	true
CY2020Q1	dei	Document Period End Date DocumentPeriodEndDate	2020-03-31
CY2020Q1	dei	Document Transition Report DocumentTransitionReport	false
CY2020Q1	dei	Entity File Number EntityFileNumber	000-10661
CY2020Q1	dei	Entity Registrant Name EntityRegistrantName	TriCo Bancshares
CY2020Q1	dei	Entity Incorporation State Country Code EntityIncorporationStateCountryCode	CA
CY2020Q1	dei	Entity Tax Identification Number EntityTaxIdentificationNumber	94-2792841
CY2020Q1	dei	Entity Address Address Line1 EntityAddressAddressLine1	63 Constitution Drive
CY2020Q1	dei	Entity Address City Or Town EntityAddressCityOrTown	Chico
CY2020Q1	dei	Entity Address State Or Province EntityAddressStateOrProvince	CA
CY2020Q1	dei	Entity Address Postal Zip Code EntityAddressPostalZipCode	95973
CY2020Q1	dei	City Area Code CityAreaCode	530
CY2020Q1	dei	Local Phone Number LocalPhoneNumber	898-0300
CY2020Q1	dei	Security12b Title Security12bTitle	Common Stock
CY2020Q1	dei	Trading Symbol TradingSymbol	TCBK
CY2020Q1	dei	Security Exchange Name SecurityExchangeName	NASDAQ
CY2020Q1	dei	Entity Current Reporting Status EntityCurrentReportingStatus	Yes
CY2020Q1	dei	Entity Interactive Data Current EntityInteractiveDataCurrent	Yes
CY2020Q1	dei	Entity Filer Category EntityFilerCategory	Large Accelerated Filer
CY2020Q1	dei	Entity Small Business EntitySmallBusiness	false
CY2020Q1	dei	Entity Emerging Growth Company EntityEmergingGrowthCompany	false
CY2020Q1	dei	Entity Shell Company EntityShellCompany	false
CY2020Q2	dei	Entity Common Stock Shares Outstanding EntityCommonStockSharesOutstanding	29721523	shares
CY2020Q1	us-gaap	Cash And Due From Banks CashAndDueFromBanks	95364000	USD
CY2019Q4	us-gaap	Cash And Due From Banks CashAndDueFromBanks	92816000	USD
CY2020Q1	tcbk	Cash At Federal Reserve And Other Banks CashAtFederalReserveAndOtherBanks	90102000	USD
CY2019Q4	tcbk	Cash At Federal Reserve And Other Banks CashAtFederalReserveAndOtherBanks	183691000	USD
CY2020Q1	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	185466000	USD
CY2019Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	276507000	USD
CY2020Q1	us-gaap	Equity Securities Fv Ni EquitySecuritiesFvNi	3007000	USD
CY2019Q4	us-gaap	Equity Securities Fv Ni EquitySecuritiesFvNi	2960000	USD
CY2020Q1	us-gaap	Debt Securities Available For Sale Allowance For Credit Loss DebtSecuritiesAvailableForSaleAllowanceForCreditLoss	0	USD
CY2020Q1	us-gaap	Available For Sale Securities Debt Securities AvailableForSaleSecuritiesDebtSecurities	1001999000	USD
CY2019Q4	us-gaap	Available For Sale Securities Debt Securities AvailableForSaleSecuritiesDebtSecurities	950138000	USD
CY2020Q1	us-gaap	Debt Securities Held To Maturity Allowance For Credit Loss DebtSecuritiesHeldToMaturityAllowanceForCreditLoss	0	USD
CY2020Q1	us-gaap	Held To Maturity Securities HeldToMaturitySecurities	359770000	USD
CY2019Q4	us-gaap	Held To Maturity Securities HeldToMaturitySecurities	375606000	USD
CY2020Q1	us-gaap	Restricted Investments RestrictedInvestments	17250000	USD
CY2019Q4	us-gaap	Restricted Investments RestrictedInvestments	17250000	USD
CY2020Q1	us-gaap	Loans Receivable Held For Sale Amount LoansReceivableHeldForSaleAmount	2695000	USD
CY2019Q4	us-gaap	Loans Receivable Held For Sale Amount LoansReceivableHeldForSaleAmount	5265000	USD
CY2020Q1	us-gaap	Notes Receivable Gross NotesReceivableGross	4379062000	USD
CY2019Q4	us-gaap	Notes Receivable Gross NotesReceivableGross	4307366000	USD
CY2020Q1	us-gaap	Financing Receivable Allowance For Credit Losses FinancingReceivableAllowanceForCreditLosses	57911000	USD
CY2019Q4	us-gaap	Financing Receivable Allowance For Credit Losses FinancingReceivableAllowanceForCreditLosses	30616000	USD
CY2020Q1	us-gaap	Notes Receivable Net NotesReceivableNet	4321151000	USD
CY2019Q4	us-gaap	Notes Receivable Net NotesReceivableNet	4276750000	USD
CY2020Q1	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	86304000	USD
CY2019Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	87086000	USD
CY2020Q1	us-gaap	Cash Surrender Value Of Life Insurance CashSurrenderValueOfLifeInsurance	118543000	USD
CY2019Q4	us-gaap	Cash Surrender Value Of Life Insurance CashSurrenderValueOfLifeInsurance	117823000	USD
CY2020Q1	us-gaap	Accrued Investment Income Receivable AccruedInvestmentIncomeReceivable	18575000	USD
CY2019Q4	us-gaap	Accrued Investment Income Receivable AccruedInvestmentIncomeReceivable	18897000	USD
CY2020Q1	us-gaap	Goodwill Goodwill	220872000	USD
CY2019Q4	us-gaap	Goodwill Goodwill	220872000	USD
CY2020Q1	tcbk	Core Deposit Intangible CoreDepositIntangible	22126000	USD
CY2019Q4	tcbk	Core Deposit Intangible CoreDepositIntangible	23557000	USD
CY2020Q1	us-gaap	Operating Lease Right Of Use Asset OperatingLeaseRightOfUseAsset	30221000	USD
CY2019Q4	us-gaap	Operating Lease Right Of Use Asset OperatingLeaseRightOfUseAsset	27879000	USD
CY2020Q1	us-gaap	Other Assets OtherAssets	86330000	USD
CY2019Q4	us-gaap	Other Assets OtherAssets	70591000	USD
CY2020Q1	us-gaap	Assets Assets	6474309000	USD
CY2019Q4	us-gaap	Assets Assets	6471181000	USD
CY2020Q1	us-gaap	Noninterest Bearing Deposit Liabilities NoninterestBearingDepositLiabilities	1883143000	USD
CY2019Q4	us-gaap	Noninterest Bearing Deposit Liabilities NoninterestBearingDepositLiabilities	1832665000	USD
CY2020Q1	us-gaap	Interest Bearing Deposit Liabilities InterestBearingDepositLiabilities	3519555000	USD
CY2019Q4	us-gaap	Interest Bearing Deposit Liabilities InterestBearingDepositLiabilities	3534329000	USD
CY2020Q1	us-gaap	Deposits Deposits	5402698000	USD
CY2019Q4	us-gaap	Deposits Deposits	5366994000	USD
CY2020Q1	us-gaap	Interest Payable Current And Noncurrent InterestPayableCurrentAndNoncurrent	1986000	USD
CY2019Q4	us-gaap	Interest Payable Current And Noncurrent InterestPayableCurrentAndNoncurrent	2407000	USD
CY2020Q1	us-gaap	Operating Lease Liability OperatingLeaseLiability	30007000	USD
CY2019Q4	us-gaap	Operating Lease Liability OperatingLeaseLiability	27540000	USD
CY2020Q1	us-gaap	Other Liabilities OtherLiabilities	96560000	USD
CY2019Q4	us-gaap	Other Liabilities OtherLiabilities	91984000	USD
CY2020Q1	us-gaap	Other Borrowings OtherBorrowings	19309000	USD
CY2019Q4	us-gaap	Other Borrowings OtherBorrowings	18454000	USD
CY2020Q1	us-gaap	Junior Subordinated Notes JuniorSubordinatedNotes	57323000	USD
CY2019Q4	us-gaap	Junior Subordinated Notes JuniorSubordinatedNotes	57232000	USD
CY2020Q1	us-gaap	Liabilities Liabilities	5607883000	USD
CY2019Q4	us-gaap	Liabilities Liabilities	5564611000	USD
CY2019Q4	us-gaap	Preferred Stock No Par Value PreferredStockNoParValue	0
CY2020Q1	us-gaap	Preferred Stock No Par Value PreferredStockNoParValue	0
CY2019Q4	us-gaap	Preferred Stock Shares Authorized PreferredStockSharesAuthorized	1000000	shares
CY2020Q1	us-gaap	Preferred Stock Shares Authorized PreferredStockSharesAuthorized	1000000	shares
CY2020Q1	us-gaap	Preferred Stock Shares Outstanding PreferredStockSharesOutstanding	0	shares
CY2019Q4	us-gaap	Preferred Stock Shares Outstanding PreferredStockSharesOutstanding	0	shares
CY2020Q1	us-gaap	Preferred Stock Shares Issued PreferredStockSharesIssued	0	shares
CY2019Q4	us-gaap	Preferred Stock Shares Issued PreferredStockSharesIssued	0	shares
CY2020Q1	us-gaap	Preferred Stock Value PreferredStockValue	0	USD
CY2019Q4	us-gaap	Preferred Stock Value PreferredStockValue	0	USD
CY2020Q1	us-gaap	Common Stock No Par Value CommonStockNoParValue	0
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CY2019Q4	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	50000000	shares
CY2020Q1	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	50000000	shares
CY2020Q1	us-gaap	Common Stock Shares Outstanding CommonStockSharesOutstanding	29973516	shares
CY2020Q1	us-gaap	Common Stock Shares Issued CommonStockSharesIssued	29973516	shares
CY2019Q4	us-gaap	Common Stock Shares Outstanding CommonStockSharesOutstanding	30523824	shares
CY2019Q4	us-gaap	Common Stock Shares Issued CommonStockSharesIssued	30523824	shares
CY2020Q1	us-gaap	Common Stock Value CommonStockValue	534623000	USD
CY2019Q4	us-gaap	Common Stock Value CommonStockValue	543998000	USD
CY2020Q1	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	356935000	USD
CY2019Q4	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	367794000	USD
CY2020Q1	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	-25132000	USD
CY2019Q4	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	-5222000	USD
CY2020Q1	us-gaap	Stockholders Equity StockholdersEquity	866426000	USD
CY2019Q4	us-gaap	Stockholders Equity StockholdersEquity	906570000	USD
CY2020Q1	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	6474309000	USD
CY2019Q4	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	6471181000	USD
CY2020Q1	us-gaap	Interest And Fee Income Loans And Leases InterestAndFeeIncomeLoansAndLeases	56258000	USD
CY2019Q1	us-gaap	Interest And Fee Income Loans And Leases InterestAndFeeIncomeLoansAndLeases	54398000	USD
CY2020Q1	us-gaap	Interest Income Securities Taxable InterestIncomeSecuritiesTaxable	8211000	USD
CY2019Q1	us-gaap	Interest Income Securities Taxable InterestIncomeSecuritiesTaxable	10555000	USD
CY2020Q1	us-gaap	Interest Income Securities Tax Exempt InterestIncomeSecuritiesTaxExempt	904000	USD
CY2019Q1	us-gaap	Interest Income Securities Tax Exempt InterestIncomeSecuritiesTaxExempt	1073000	USD
CY2020Q1	us-gaap	Dividend Income Operating DividendIncomeOperating	361000	USD
CY2019Q1	us-gaap	Dividend Income Operating DividendIncomeOperating	360000	USD
CY2020Q1	us-gaap	Interest Income Federal Funds Sold And Securities Purchased Under Agreements To Resell InterestIncomeFederalFundsSoldAndSecuritiesPurchasedUnderAgreementsToResell	783000	USD
CY2019Q1	us-gaap	Interest Income Federal Funds Sold And Securities Purchased Under Agreements To Resell InterestIncomeFederalFundsSoldAndSecuritiesPurchasedUnderAgreementsToResell	1071000	USD
CY2020Q1	us-gaap	Interest And Dividend Income Operating InterestAndDividendIncomeOperating	66517000	USD
CY2019Q1	us-gaap	Interest And Dividend Income Operating InterestAndDividendIncomeOperating	67457000	USD
CY2020Q1	us-gaap	Interest Expense Deposits InterestExpenseDeposits	2551000	USD
CY2019Q1	us-gaap	Interest Expense Deposits InterestExpenseDeposits	2719000	USD
CY2020Q1	us-gaap	Interest Expense Other Long Term Debt InterestExpenseOtherLongTermDebt	5000	USD
CY2019Q1	us-gaap	Interest Expense Other Long Term Debt InterestExpenseOtherLongTermDebt	13000	USD
CY2020Q1	us-gaap	Interest Expense Junior Subordinated Debentures InterestExpenseJuniorSubordinatedDebentures	769000	USD
CY2019Q1	us-gaap	Interest Expense Junior Subordinated Debentures InterestExpenseJuniorSubordinatedDebentures	855000	USD
CY2020Q1	us-gaap	Interest Expense InterestExpense	3325000	USD
CY2019Q1	us-gaap	Interest Expense InterestExpense	3587000	USD
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CY2019Q1	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	63870000	USD
CY2020Q1	tcbk	Provision For Benefit From Provisions For Loan Losses ProvisionForBenefitFromProvisionsForLoanLosses	8000000	USD
CY2019Q1	tcbk	Provision For Benefit From Provisions For Loan Losses ProvisionForBenefitFromProvisionsForLoanLosses	-1600000	USD
CY2020Q1	us-gaap	Interest Income Expense After Provision For Loan Loss InterestIncomeExpenseAfterProvisionForLoanLoss	55192000	USD
CY2019Q1	us-gaap	Interest Income Expense After Provision For Loan Loss InterestIncomeExpenseAfterProvisionForLoanLoss	65470000	USD
CY2020Q1	us-gaap	Revenue From Contract With Customer Including Assessed Tax RevenueFromContractWithCustomerIncludingAssessedTax	9126000	USD
CY2019Q1	us-gaap	Revenue From Contract With Customer Including Assessed Tax RevenueFromContractWithCustomerIncludingAssessedTax	9070000	USD
CY2020Q1	us-gaap	Gain Loss On Sales Of Loans Net GainLossOnSalesOfLoansNet	891000	USD
CY2019Q1	us-gaap	Gain Loss On Sales Of Loans Net GainLossOnSalesOfLoansNet	412000	USD
CY2020Q1	us-gaap	Gain On Sale Of Investments GainOnSaleOfInvestments	0	USD
CY2019Q1	us-gaap	Gain On Sale Of Investments GainOnSaleOfInvestments	0	USD
CY2020Q1	tcbk	Asset Management And Commission Income AssetManagementAndCommissionIncome	916000	USD
CY2019Q1	tcbk	Asset Management And Commission Income AssetManagementAndCommissionIncome	642000	USD
CY2020Q1	us-gaap	Bank Owned Life Insurance Income BankOwnedLifeInsuranceIncome	720000	USD
CY2019Q1	us-gaap	Bank Owned Life Insurance Income BankOwnedLifeInsuranceIncome	775000	USD
CY2020Q1	us-gaap	Noninterest Income Other Operating Income NoninterestIncomeOtherOperatingIncome	167000	USD
CY2019Q1	us-gaap	Noninterest Income Other Operating Income NoninterestIncomeOtherOperatingIncome	904000	USD
CY2020Q1	us-gaap	Noninterest Income NoninterestIncome	11820000	USD
CY2019Q1	us-gaap	Noninterest Income NoninterestIncome	11803000	USD
CY2020Q1	us-gaap	Labor And Related Expense LaborAndRelatedExpense	27272000	USD
CY2019Q1	us-gaap	Labor And Related Expense LaborAndRelatedExpense	25128000	USD
CY2020Q1	us-gaap	Other Noninterest Expense OtherNoninterestExpense	17547000	USD
CY2019Q1	us-gaap	Other Noninterest Expense OtherNoninterestExpense	20324000	USD
CY2020Q1	us-gaap	Noninterest Expense NoninterestExpense	44819000	USD
CY2019Q1	us-gaap	Noninterest Expense NoninterestExpense	45452000	USD
CY2020Q1	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	22193000	USD
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CY2020Q1	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	6072000	USD
CY2019Q1	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	9095000	USD
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CY2019Q1	us-gaap	Net Income Loss NetIncomeLoss	22726000	USD
CY2020Q1	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.53
CY2019Q1	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.75
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CY2019Q1	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.74
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CY2020Q1	us-gaap	Net Income Loss NetIncomeLoss	16121000	USD
CY2019Q1	us-gaap	Net Income Loss NetIncomeLoss	22726000	USD
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CY2019Q1	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Adjustment Net Of Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax	8952000	USD
CY2020Q1	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Adjustment Net Of Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax	-912000	USD
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CY2020Q1	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	-19910000	USD
CY2019Q1	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	8952000	USD
CY2020Q1	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	-3789000	USD
CY2019Q1	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	31678000	USD
CY2018Q4	us-gaap	Stockholders Equity StockholdersEquity	827373000	USD
CY2019Q1	us-gaap	Net Income Loss NetIncomeLoss	22726000	USD
CY2019Q1	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	8952000	USD
CY2019Q1	us-gaap	Stock Issued During Period Value Stock Options Exercised StockIssuedDuringPeriodValueStockOptionsExercised	647000	USD
CY2019Q1	us-gaap	Adjustments To Additional Paid In Capital Share Based Compensation Restricted Stock Units Requisite Service Period Recognition AdjustmentsToAdditionalPaidInCapitalShareBasedCompensationRestrictedStockUnitsRequisiteServicePeriodRecognition	278000	USD
CY2019Q1	tcbk	Performance Share Units Vesting PerformanceShareUnitsVesting	119000	USD
CY2019Q1	tcbk	Restricted Stock Units Released Amount RestrictedStockUnitsReleasedAmount	0	USD
CY2019Q1	tcbk	Performance Share Units Released Value PerformanceShareUnitsReleasedValue	0	USD
CY2019Q1	us-gaap	Stock Repurchased During Period Value StockRepurchasedDuringPeriodValue	1035000	USD
CY2019Q1	us-gaap	Dividends Common Stock Cash DividendsCommonStockCash	5782000	USD
CY2019Q1	us-gaap	Stockholders Equity StockholdersEquity	853278000	USD
CY2019Q4	us-gaap	Stockholders Equity StockholdersEquity	906570000	USD
CY2020Q1	us-gaap	Cumulative Effect Of New Accounting Principle In Period Of Adoption CumulativeEffectOfNewAccountingPrincipleInPeriodOfAdoption	-12983000	USD
CY2020Q1	us-gaap	Stockholders Equity StockholdersEquity	893587000	USD
CY2020Q1	us-gaap	Net Income Loss NetIncomeLoss	16121000	USD
CY2020Q1	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	-19910000	USD
CY2020Q1	us-gaap	Stock Issued During Period Value Stock Options Exercised StockIssuedDuringPeriodValueStockOptionsExercised	148000	USD
CY2020Q1	us-gaap	Adjustments To Additional Paid In Capital Share Based Compensation Restricted Stock Units Requisite Service Period Recognition AdjustmentsToAdditionalPaidInCapitalShareBasedCompensationRestrictedStockUnitsRequisiteServicePeriodRecognition	297000	USD
CY2020Q1	tcbk	Performance Share Units Vesting PerformanceShareUnitsVesting	142000	USD
CY2020Q1	tcbk	Restricted Stock Units Released Amount RestrictedStockUnitsReleasedAmount	0	USD
CY2020Q1	tcbk	Performance Share Units Released Value PerformanceShareUnitsReleasedValue	0	USD
CY2020Q1	us-gaap	Stock Repurchased During Period Value StockRepurchasedDuringPeriodValue	17295000	USD
CY2020Q1	us-gaap	Dividends Common Stock Cash DividendsCommonStockCash	6664000	USD
CY2020Q1	us-gaap	Stockholders Equity StockholdersEquity	866426000	USD
CY2020Q1	us-gaap	Profit Loss ProfitLoss	16121000	USD
CY2019Q1	us-gaap	Profit Loss ProfitLoss	22726000	USD
CY2020Q1	us-gaap	Depreciation Amortization And Accretion Net DepreciationAmortizationAndAccretionNet	1618000	USD
CY2019Q1	us-gaap	Depreciation Amortization And Accretion Net DepreciationAmortizationAndAccretionNet	1838000	USD
CY2020Q1	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	1431000	USD
CY2019Q1	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	1431000	USD
CY2020Q1	tcbk	Provision For Reversal Of Benefit From Loan Losses Expensed ProvisionForReversalOfBenefitFromLoanLossesExpensed	8000000	USD
CY2019Q1	tcbk	Provision For Reversal Of Benefit From Loan Losses Expensed ProvisionForReversalOfBenefitFromLoanLossesExpensed	-1600000	USD
CY2020Q1	us-gaap	Accretion Amortization Of Discounts And Premiums Investments AccretionAmortizationOfDiscountsAndPremiumsInvestments	-509000	USD
CY2019Q1	us-gaap	Accretion Amortization Of Discounts And Premiums Investments AccretionAmortizationOfDiscountsAndPremiumsInvestments	-571000	USD
CY2020Q1	us-gaap	Payments For Origination Of Mortgage Loans Held For Sale PaymentsForOriginationOfMortgageLoansHeldForSale	28394000	USD
CY2019Q1	us-gaap	Payments For Origination Of Mortgage Loans Held For Sale PaymentsForOriginationOfMortgageLoansHeldForSale	18119000	USD
CY2020Q1	us-gaap	Proceeds From Sale Of Mortgage Loans Held For Sale ProceedsFromSaleOfMortgageLoansHeldForSale	31629000	USD
CY2019Q1	us-gaap	Proceeds From Sale Of Mortgage Loans Held For Sale ProceedsFromSaleOfMortgageLoansHeldForSale	16689000	USD
CY2020Q1	us-gaap	Gain Loss On Sales Of Loans Net GainLossOnSalesOfLoansNet	891000	USD
CY2019Q1	us-gaap	Gain Loss On Sales Of Loans Net GainLossOnSalesOfLoansNet	412000	USD
CY2020Q1	tcbk	Change In Market Value Of Mortgage Servicing Rights ChangeInMarketValueOfMortgageServicingRights	1258000	USD
CY2019Q1	tcbk	Change In Market Value Of Mortgage Servicing Rights ChangeInMarketValueOfMortgageServicingRights	645000	USD
CY2020Q1	tcbk	Gain On Transfer Of Loans To Foreclosed Assets GainOnTransferOfLoansToForeclosedAssets	0	USD
CY2019Q1	tcbk	Gain On Transfer Of Loans To Foreclosed Assets GainOnTransferOfLoansToForeclosedAssets	98000	USD
CY2020Q1	tcbk	Loss Gain On Sale Of Foreclosed Assets LossGainOnSaleOfForeclosedAssets	41000	USD
CY2019Q1	tcbk	Loss Gain On Sale Of Foreclosed Assets LossGainOnSaleOfForeclosedAssets	99000	USD
CY2020Q1	us-gaap	Operating Lease Payments OperatingLeasePayments	1237000	USD
CY2019Q1	us-gaap	Operating Lease Payments OperatingLeasePayments	1218000	USD
CY2020Q1	us-gaap	Gain Loss On Disposition Of Assets GainLossOnDispositionOfAssets	0	USD
CY2019Q1	us-gaap	Gain Loss On Disposition Of Assets GainLossOnDispositionOfAssets	-38000	USD
CY2020Q1	us-gaap	Bank Owned Life Insurance Income BankOwnedLifeInsuranceIncome	720000	USD
CY2019Q1	us-gaap	Bank Owned Life Insurance Income BankOwnedLifeInsuranceIncome	775000	USD
CY2020Q1	us-gaap	Insured Event Gain Loss InsuredEventGainLoss	0	USD
CY2019Q1	us-gaap	Insured Event Gain Loss InsuredEventGainLoss	32000	USD
CY2020Q1	us-gaap	Equity Securities Fv Ni Realized Gain Loss EquitySecuritiesFvNiRealizedGainLoss	47000	USD
CY2019Q1	us-gaap	Equity Securities Fv Ni Realized Gain Loss EquitySecuritiesFvNiRealizedGainLoss	36000	USD
CY2020Q1	us-gaap	Share Based Compensation ShareBasedCompensation	439000	USD
CY2019Q1	us-gaap	Share Based Compensation ShareBasedCompensation	397000	USD
CY2020Q1	us-gaap	Increase Decrease In Accrued Interest Receivable Net IncreaseDecreaseInAccruedInterestReceivableNet	-322000	USD
CY2019Q1	us-gaap	Increase Decrease In Accrued Interest Receivable Net IncreaseDecreaseInAccruedInterestReceivableNet	1019000	USD
CY2020Q1	us-gaap	Increase Decrease In Interest Payable Net IncreaseDecreaseInInterestPayableNet	-421000	USD
CY2019Q1	us-gaap	Increase Decrease In Interest Payable Net IncreaseDecreaseInInterestPayableNet	198000	USD
CY2020Q1	tcbk	Increase Decrease In Amortization Of Operating Lease Right Of Use Asset IncreaseDecreaseInAmortizationOfOperatingLeaseRightOfUseAsset	1362000	USD
CY2019Q1	tcbk	Increase Decrease In Amortization Of Operating Lease Right Of Use Asset IncreaseDecreaseInAmortizationOfOperatingLeaseRightOfUseAsset	480000	USD
CY2020Q1	us-gaap	Increase Decrease In Other Operating Liabilities IncreaseDecreaseInOtherOperatingLiabilities	2609000	USD
CY2019Q1	us-gaap	Increase Decrease In Other Operating Liabilities IncreaseDecreaseInOtherOperatingLiabilities	450000	USD
CY2020Q1	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	33547000	USD
CY2019Q1	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	22055000	USD
CY2020Q1	us-gaap	Proceeds From Maturities Prepayments And Calls Of Available For Sale Securities ProceedsFromMaturitiesPrepaymentsAndCallsOfAvailableForSaleSecurities	20212000	USD
CY2019Q1	us-gaap	Proceeds From Maturities Prepayments And Calls Of Available For Sale Securities ProceedsFromMaturitiesPrepaymentsAndCallsOfAvailableForSaleSecurities	15133000	USD
CY2020Q1	us-gaap	Proceeds From Maturities Prepayments And Calls Of Held To Maturity Securities ProceedsFromMaturitiesPrepaymentsAndCallsOfHeldToMaturitySecurities	15592000	USD
CY2019Q1	us-gaap	Proceeds From Maturities Prepayments And Calls Of Held To Maturity Securities ProceedsFromMaturitiesPrepaymentsAndCallsOfHeldToMaturitySecurities	13684000	USD
CY2020Q1	us-gaap	Payments To Acquire Available For Sale Securities Debt PaymentsToAcquireAvailableForSaleSecuritiesDebt	101899000	USD
CY2019Q1	us-gaap	Payments To Acquire Available For Sale Securities Debt PaymentsToAcquireAvailableForSaleSecuritiesDebt	1238000	USD
CY2020Q1	tcbk	Payment For Loan And Lease Originations And Principal Collections PaymentForLoanAndLeaseOriginationsAndPrincipalCollections	70833000	USD
CY2019Q1	tcbk	Payment For Loan And Lease Originations And Principal Collections PaymentForLoanAndLeaseOriginationsAndPrincipalCollections	11351000	USD
CY2020Q1	us-gaap	Proceeds From Sale Of Other Real Estate ProceedsFromSaleOfOtherRealEstate	353000	USD
CY2019Q1	us-gaap	Proceeds From Sale Of Other Real Estate ProceedsFromSaleOfOtherRealEstate	278000	USD
CY2020Q1	us-gaap	Proceeds From Sale Of Property Plant And Equipment ProceedsFromSaleOfPropertyPlantAndEquipment	0	USD
CY2019Q1	us-gaap	Proceeds From Sale Of Property Plant And Equipment ProceedsFromSaleOfPropertyPlantAndEquipment	11000	USD
CY2020Q1	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	761000	USD
CY2019Q1	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	1650000	USD
CY2020Q1	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-137336000	USD
CY2019Q1	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	14867000	USD
CY2020Q1	us-gaap	Increase Decrease In Deposits IncreaseDecreaseInDeposits	35704000	USD
CY2019Q1	us-gaap	Increase Decrease In Deposits IncreaseDecreaseInDeposits	63796000	USD
CY2020Q1	us-gaap	Proceeds From Repayments Of Short Term Debt ProceedsFromRepaymentsOfShortTermDebt	855000	USD
CY2019Q1	us-gaap	Proceeds From Repayments Of Short Term Debt ProceedsFromRepaymentsOfShortTermDebt	-3373000	USD
CY2020Q1	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	17147000	USD
CY2019Q1	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	388000	USD
CY2020Q1	us-gaap	Payments Of Dividends Common Stock PaymentsOfDividendsCommonStock	6664000	USD
CY2019Q1	us-gaap	Payments Of Dividends Common Stock PaymentsOfDividendsCommonStock	5782000	USD
CY2020Q1	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	12748000	USD
CY2019Q1	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	54253000	USD
CY2020Q1	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Excluding Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseExcludingExchangeRateEffect	-91041000	USD
CY2019Q1	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Excluding Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseExcludingExchangeRateEffect	91175000	USD
CY2019Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	276507000	USD
CY2018Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	227533000	USD
CY2020Q1	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	185466000	USD
CY2019Q1	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	318708000	USD
CY2020Q1	tcbk	Unrealized Gain Loss On Securities Available For Sale UnrealizedGainLossOnSecuritiesAvailableForSale	-29561000	USD
CY2019Q1	tcbk	Unrealized Gain Loss On Securities Available For Sale UnrealizedGainLossOnSecuritiesAvailableForSale	12710000	USD
CY2020Q1	tcbk	Market Value Of Shares Tendered By Employees In Lieu Of Cash To Pay For Exercise Of Options And Or Related Taxes MarketValueOfSharesTenderedByEmployeesInLieuOfCashToPayForExerciseOfOptionsAndOrRelatedTaxes	148000	USD
CY2019Q1	tcbk	Market Value Of Shares Tendered By Employees In Lieu Of Cash To Pay For Exercise Of Options And Or Related Taxes MarketValueOfSharesTenderedByEmployeesInLieuOfCashToPayForExerciseOfOptionsAndOrRelatedTaxes	647000	USD
CY2020Q1	us-gaap	Capital Lease Obligations Incurred CapitalLeaseObligationsIncurred	3393000	USD
CY2019Q1	us-gaap	Capital Lease Obligations Incurred CapitalLeaseObligationsIncurred	32006000	USD
CY2020Q1	tcbk	Loans Transferred To Foreclosed Assets LoansTransferredToForeclosedAssets	0	USD
CY2019Q1	tcbk	Loans Transferred To Foreclosed Assets LoansTransferredToForeclosedAssets	116000	USD
CY2020Q1	us-gaap	Interest Paid Net InterestPaidNet	3746000	USD
CY2019Q1	us-gaap	Interest Paid Net InterestPaidNet	3389000	USD
CY2020Q1	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	0	USD
CY2019Q1	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	0	USD
CY2020Q1	tcbk	Number Of Subsidiary Business Trust NumberOfSubsidiaryBusinessTrust	5	business_trust
CY2020Q1	tcbk	Number Of Loan Production Offices NumberOfLoanProductionOffices	2	business_trust
CY2020Q1	us-gaap	Equity Method Investment Aggregate Cost EquityMethodInvestmentAggregateCost	1792000	USD
CY2020Q1	us-gaap	Use Of Estimates UseOfEstimates	<div style="margin-top:6pt;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%;">The preparation of financial statements in conformity with accounting principles generally accepted in the United States of America requires Management to make estimates and assumptions that affect the reported amounts 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. The Company bases its estimates on historical experience and on various other assumptions that are believed to be reasonable under the circumstances, the results of which form the basis for making judgments about the carrying values of assets and liabilities that are not readily apparent from other sources. Actual results may differ from these estimates under different assumptions or conditions.</span></div><div style="margin-top:12pt;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%;">Certain information and footnote disclosures normally included in financial statements prepared in accordance with accounting principles generally accepted in the United States of America have been condensed or omitted pursuant to the rules and regulations of the Securities and Exchange Commission. These unaudited condensed consolidated financial statements should be read in conjunction with the audited consolidated financial statements and notes thereto included in the Company’s Annual Report on Form 10-K for the year ended December 31, 2019 (the “2019 Annual Report”). The Company believes that the disclosures made are adequate to make the information not misleading.</span></div>
CY2020Q1	us-gaap	Concentration Risk Credit Risk ConcentrationRiskCreditRisk	The Company grants agribusiness, commercial, consumer, and residential loans to customers located throughout northern and central California. The Company has a diversified loan portfolio within the business segments located in this geographical area. The Company currently classifies all its operation into one business segment that it denotes as community banking.
CY2020Q1	us-gaap	Number Of Reportable Segments NumberOfReportableSegments	1	Segment
CY2020Q1	us-gaap	Prior Period Reclassification Adjustment Description PriorPeriodReclassificationAdjustmentDescription	Some items in the prior year consolidated financial statements were reclassified to conform to the current presentation. Reclassifications had no effect on prior year net income or shareholders’equity.
CY2020Q1	tcbk	Nonaccrual Status Loans Contractual Past Due NonaccrualStatusLoansContractualPastDue	P90D
CY2020Q1	us-gaap	Financing Receivable Allowance For Credit Losses Policy For Uncollectible Amounts FinancingReceivableAllowanceForCreditLossesPolicyForUncollectibleAmounts	<div style="margin-top:6pt;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%;">The allowance for credit losses (ACL) is a valuation account that is deducted from the loan's amortized cost basis to present the net amount expected to be collected on the loans. Loans are charged off against the allowance when management believes the recorded loan balance is confirmed as uncollectible. Expected recoveries do not exceed the aggregate of amounts previously charged-off and expected to be charged-off. Regardless of the determination that a charge-off is appropriate for financial accounting purposes, the Company manages its loan portfolio by continually monitoring, where possible, a borrower's ability to pay through the collection of financial information, delinquency status, borrower discussion and the encouragement to repay in accordance with the original contract or modified terms, if appropriate.</span></div><div style="margin-top:6pt;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%;">Management estimates the allowance balance using relevant information, from internal and external sources, relating to past events, current conditions, and reasonable and supportable forecasts. The allowance for credit losses is measured on a collective (pool) basis when similar risk characteristics exist. Historical credit loss experience provides the basis for the estimation of expected credit losses, which captures loan balances as of a point in time to form a cohort, then tracks the respective losses generated by that cohort of loans over the remaining life. The Company identified and accumulated loan cohort historical loss data beginning with the fourth quarter of 2008 and through the current period. In situations where the Company's actual loss history was not statistically relevant, the loss history of peers, defined as financial institutions with assets greater than three billion and less than ten billion, were utilized to create a minimum loss rate. Adjustments to historical loss information are made for differences in relevant current loan-specific risk characteristics, such as historical timing of losses relative to the loan origination. In its loss forecasting framework, the Company incorporates forward-looking information through the use of macroeconomic scenarios applied over the forecasted life of the assets. These macroeconomic scenarios incorporate variables that have historically been key drivers of increases and decreases in credit losses. These variables include, but are not limited to changes in environmental conditions, such as California unemployment rates, household debt levels and U.S. gross domestic product.</span></div><div style="margin-top:6pt;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%;">A loan is considered to be collateral dependent when repayment is expected to be provided substantially through the operation or sale of the collateral. The ACL on collateral dependent loans is measured using the fair value of the underlying collateral, adjusted for costs to sell when applicable, less the amortized cost basis of the financial asset. If the value of underlying collateral is determined to be less than the recorded amount of the loan, a charge-off will be taken. Loans for which the terms have been modified resulting in a concession, and for which the borrower is experiencing financial difficulties, is considered to be a troubled debt restructuring (TDR). The ACL on a TDR is measured using the same method as all other portfolio loans, except when the value of a concession cannot be measured using a method other than the discounted cash flow method. When the value of a concession is measured using the discounted cash flow method, the ACL is determined by discounting the expected future cash flows at the original interest rate of the loan. </span></div><div style="margin-top:6pt;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%;">The Company has identified the following portfolio segments to evaluate and measure the allowance for credit loss:</span></div><div style="text-indent:-18pt;padding-left:18pt;margin-top:6pt;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%;text-decoration: underline;">One to four residential term loans</span><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%;">: The most significant drivers of potential loss within the Company's residential real estate portfolio relate general, regional, or individual changes in economic conditions and their effect on employment and borrowers cash flow. Risk in this portfolio is best measured by changes in borrower credit score and loan-to-value. Loss estimates are based on the general movement in credit score, economic outlook and its effects on employment and the value of homes and the Bank’s historical loss experience adjusted to reflect the economic outlook and the unemployment rate.</span></div><div style="text-indent:-18pt;padding-left:18pt;margin-top:6pt;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%;text-decoration: underline;">Commercial mortgage loans</span><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%;">:</span></div><div style="padding-left:18pt;margin-top:6pt;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%;">Commercial real estate - Owner occupied: These credits are primarily susceptible to changes in the financial condition of the business operated by the property owner. This may be driven by changes in, among other things, industry challenges, factors unique to the operating geography of the borrower, change in the individual fortunes of the business owner, general economic conditions and changes in business cycles. When default is driven by issues related specifically to the business owner, collateral values tend to provide better repayment support and may result in little or no loss. Alternatively, when default is driven more by general economic conditions, the underlying collateral may have devalued more and thus result in larger losses in the event of default. The terms on these loans at origination typically have maturities from <span style="-sec-ix-hidden:id3VybDovL2RvY3MudjEvZG9jOjBkNGYwZmUzYjFkNTRiZjU4N2UyMTZhMGFhODQ3NThjL3NlYzowZDRmMGZlM2IxZDU0YmY1ODdlMjE2YTBhYTg0NzU4Y180MC9mcmFnOjVjMmFjNzhiNWMzNTRiM2JiZDMwYWZmYjI1NTVlNDgyL3RleHRyZWdpb246NWMyYWM3OGI1YzM1NGIzYmJkMzBhZmZiMjU1NWU0ODJfMTY0OTI2NzU2NjE4OQ_c6eaf3e9-f736-4a1b-bb59-917a8eb75741">five</span> to <span style="-sec-ix-hidden:id3VybDovL2RvY3MudjEvZG9jOjBkNGYwZmUzYjFkNTRiZjU4N2UyMTZhMGFhODQ3NThjL3NlYzowZDRmMGZlM2IxZDU0YmY1ODdlMjE2YTBhYTg0NzU4Y180MC9mcmFnOjVjMmFjNzhiNWMzNTRiM2JiZDMwYWZmYjI1NTVlNDgyL3RleHRyZWdpb246NWMyYWM3OGI1YzM1NGIzYmJkMzBhZmZiMjU1NWU0ODJfMTY0OTI2NzU2NjE5NQ_7f4fe335-de98-4cb0-9d55-65218c552ef8">ten</span> years with amortization periods from <span style="-sec-ix-hidden:id3VybDovL2RvY3MudjEvZG9jOjBkNGYwZmUzYjFkNTRiZjU4N2UyMTZhMGFhODQ3NThjL3NlYzowZDRmMGZlM2IxZDU0YmY1ODdlMjE2YTBhYTg0NzU4Y180MC9mcmFnOjVjMmFjNzhiNWMzNTRiM2JiZDMwYWZmYjI1NTVlNDgyL3RleHRyZWdpb246NWMyYWM3OGI1YzM1NGIzYmJkMzBhZmZiMjU1NWU0ODJfMTY0OTI2NzU2NjIzNQ_d2bb915e-40eb-4f0f-84f9-90c9fc1b6bb8">fifteen</span> to <span style="-sec-ix-hidden:id3VybDovL2RvY3MudjEvZG9jOjBkNGYwZmUzYjFkNTRiZjU4N2UyMTZhMGFhODQ3NThjL3NlYzowZDRmMGZlM2IxZDU0YmY1ODdlMjE2YTBhYTg0NzU4Y180MC9mcmFnOjVjMmFjNzhiNWMzNTRiM2JiZDMwYWZmYjI1NTVlNDgyL3RleHRyZWdpb246NWMyYWM3OGI1YzM1NGIzYmJkMzBhZmZiMjU1NWU0ODJfMTY0OTI2NzU2NjI0MQ_d8d2c2a8-4a7f-4e2a-9d36-70a4632acb6e">thirty</span> years.</span></div><div style="padding-left:18pt;margin-top:6pt;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%;">Commercial real estate - Non-owner occupied: These commercial properties typically consist of buildings which are leased to others for their use and rely on rents as the primary source of repayment. Property types are predominantly office, retail, or light industrial but the portfolio also has some special use properties. As such, the risk of loss associated with these properties is primarily driven by general economic changes or changes in regional economies and the impact of such on a tenant’s ability to pay. Ultimately this can affect occupancy, rental rates, or both. Additional risk of loss can come from new construction resulting in oversupply, the costs to hold or operate the property, or changes in interest rates. The terms on these loans at origination typically have maturities from <span style="-sec-ix-hidden:id3VybDovL2RvY3MudjEvZG9jOjBkNGYwZmUzYjFkNTRiZjU4N2UyMTZhMGFhODQ3NThjL3NlYzowZDRmMGZlM2IxZDU0YmY1ODdlMjE2YTBhYTg0NzU4Y180MC9mcmFnOjVjMmFjNzhiNWMzNTRiM2JiZDMwYWZmYjI1NTVlNDgyL3RleHRyZWdpb246NWMyYWM3OGI1YzM1NGIzYmJkMzBhZmZiMjU1NWU0ODJfMzg0ODI5MDgwNTc4MQ_de12958b-202d-45a4-9135-336e3cd5a0cc">five</span> to <span style="-sec-ix-hidden:id3VybDovL2RvY3MudjEvZG9jOjBkNGYwZmUzYjFkNTRiZjU4N2UyMTZhMGFhODQ3NThjL3NlYzowZDRmMGZlM2IxZDU0YmY1ODdlMjE2YTBhYTg0NzU4Y180MC9mcmFnOjVjMmFjNzhiNWMzNTRiM2JiZDMwYWZmYjI1NTVlNDgyL3RleHRyZWdpb246NWMyYWM3OGI1YzM1NGIzYmJkMzBhZmZiMjU1NWU0ODJfMzg0ODI5MDgwNTc5NA_0d5f9202-0858-42b6-9694-803d6ae373a4">ten</span> years with amortization periods from <span style="-sec-ix-hidden:id3VybDovL2RvY3MudjEvZG9jOjBkNGYwZmUzYjFkNTRiZjU4N2UyMTZhMGFhODQ3NThjL3NlYzowZDRmMGZlM2IxZDU0YmY1ODdlMjE2YTBhYTg0NzU4Y180MC9mcmFnOjVjMmFjNzhiNWMzNTRiM2JiZDMwYWZmYjI1NTVlNDgyL3RleHRyZWdpb246NWMyYWM3OGI1YzM1NGIzYmJkMzBhZmZiMjU1NWU0ODJfMzg0ODI5MDgwNTgxMg_4557bc70-bfb5-454f-8685-823b3b3010bd">fifteen</span> to <span style="-sec-ix-hidden:id3VybDovL2RvY3MudjEvZG9jOjBkNGYwZmUzYjFkNTRiZjU4N2UyMTZhMGFhODQ3NThjL3NlYzowZDRmMGZlM2IxZDU0YmY1ODdlMjE2YTBhYTg0NzU4Y180MC9mcmFnOjVjMmFjNzhiNWMzNTRiM2JiZDMwYWZmYjI1NTVlNDgyL3RleHRyZWdpb246NWMyYWM3OGI1YzM1NGIzYmJkMzBhZmZiMjU1NWU0ODJfMzg0ODI5MDgwNTgyOQ_0baf0d14-734c-450c-a1e5-331470ab80f7">thirty</span> years.</span></div><div style="padding-left:18pt;margin-top:6pt;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%;">Multifamily: These commercial properties are generally comprised of more than four rentable units, such as apartment buildings, with each unit intended to be occupied as the primary residence for one or more persons. Multifamily properties are also subject to changes in general or regional economic conditions, such as unemployment, ultimately resulting in increased vacancy rates or reduced rents or both. In addition, new construction can create an oversupply condition and market competition resulting in increased vacancy, reduced market rents, or both. Due to the nature of their use and the greater likelihood of tenant turnover, the management of these properties is more intensive and therefore is more critical to the preclusion of loss.</span></div><div style="padding-left:18pt;margin-top:6pt;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%;">Farmland: While the Company has few loans that were originated for the purpose of the acquisition of these commercial properties, loans secured by farmland represent unique risks that are associated with the operation of an agricultural businesses. The valuation of farmland can vary greatly over time based on the property's access to resources including but not limited to water, crop prices, foreign exchange rates, government regulation or restrictions, and the nature of ongoing capital investment needed to maintain the quality of the property. Loans secured by farmland typically represent less risk to the Company than other agriculture loans as the real estate typically provides greater support in the event of default or need for longer term repayment. </span></div><div style="margin-top:6pt;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%;text-decoration: underline;">Consumer loans</span><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%;">:</span></div><div style="padding-left:18pt;margin-top:6pt;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%;">Home equity lines of credit (HELOC): Similar to residential real estate term loans, HELOC performance is also primarily driven by borrower cash flows based on employment status. However, HELOCs carry additional risks associated with the fact that most of these loans are secured by a deed of trust in a position that is junior to the primary lien holder. Furthermore, the risk that as the borrower's financial strength deteriorates, the outstanding balance on these credit lines may increase as they may only be canceled by the Company if certain limited criteria are met. In addition to the allowance for credit losses maintained as a percent of the outstanding loan balance, the Company maintains additional reserves for the unfunded portion of the HELOC. </span></div><div style="padding-left:18pt;margin-top:6pt;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%;">Home equity loans: Similar to residential real estate term loans but secured by a deed of trust in a position that is junior to the primary lien holder.</span></div><div style="padding-left:18pt;margin-top:6pt;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%;">Consumer - Automobile and other: The majority of consumer loans are secured by automobiles, with the remainder primarily unsecured revolving debt (credit cards). These loans are susceptible to three primary risks; non-payment due to income loss, over-extension of credit and, when the borrower is unable to pay, shortfall in collateral value, if any. Typically non-payment is due to loss of job and will follow general economic trends in the marketplace driven primarily by </span></div><div style="padding-left:18pt;margin-top:6pt;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%;">rises in the unemployment rate. Loss of collateral value can be due to market demand shifts, damage to collateral itself or a combination of those factors. Credit card loans are unsecured and while collection efforts are pursued in the event of default, there is typically limited opportunity for recovery. Loss estimates are based on the general movement in credit score, economic outlook and its effects on employment and the Bank’s historical loss experience adjusted to reflect the economic outlook and the unemployment rate.</span></div><div style="margin-top:6pt;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%;text-decoration: underline;">Commercial</span><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%;">:</span></div><div style="padding-left:18pt;margin-top:6pt;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%;">Commercial and industrial: Primarily based on the cash flow of the borrower, and secondarily on the underlying collateral provided by the borrower. A borrower's cash flow may be unpredictable, and collateral securing these loans may fluctuate in value. Most often, collateral includes accounts receivable, inventory, or equipment. Collateral securing these loans may depreciate over time, may be difficult to appraise, may be illiquid and may fluctuate in value based on the success of the business. Actual and forecast changes in gross domestic product are believed to be corollary to losses associated with these credits.</span></div><div style="padding-left:18pt;margin-top:6pt;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%;">Leases: The loss forecasting model applies the historical rate of loss for similar loans over the expected life of the asset. Leases typically represent an elevated level of credit risk as compared to loans secured by real estate as the collateral for leases is often subject to a more rapid rate of depreciation or depletion. The ultimate severity of loss is impacted by the type of collateral securing the exposure, the size of the exposure, the borrower’s industry sector, any guarantors and the geographic market. Assumptions of expected loss are conditioned to the economic outlook and the other variables discussed above.</span></div><div style="padding-left:18pt;margin-top:6pt;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%;">Agriculture: Repayment is dependent upon successful operation of the agricultural business, which is greatly impacted by factors outside the control of the borrower. These factors include adverse weather conditions, including access to water, that may impact crop yields, loss of livestock due to disease or other factors, declines in market prices for agriculture products, changes in foreign exchange, and the impact of government regulations. In addition, many farms are dependent on a limited number of key individuals whose injury or death may significantly affect the successful operation of the business. Consequently, agricultural loans may involve a greater degree of risk than other types of loans.</span></div><div style="text-indent:-18pt;padding-left:18pt;margin-top:6pt;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%;text-decoration: underline;">Construction</span><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%;">: While secured by real estate, construction loans represent a greater level of risk than term real estate loans due to the nature of the additional risks associated with the not only the completion of construction within an estimated time period and budget, but also the need to either sell the building or reach a level of stabilized occupancy sufficient to generate the cash flows necessary to support debt service and operating costs. The Company seeks to mitigate the additional risks associated with construction lending by requiring borrowers to comply with lower loan to value ratios and additional covenants as well as strong tertiary support of guarantors. The loss forecasting model applies the historical rate of loss for similar loans over the expected life of the asset as adjusted for macroeconomic factors. </span></div><div style="text-indent:-18pt;padding-left:18pt;margin-top:6pt;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%;text-decoration: underline;">Unfunded commitments</span><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%;">: The estimated credit losses associated with these unfunded lending commitments is calculated using the same models and methodologies noted above and incorporate utilization assumptions at time of default. The reserve for unfunded commitments is maintained on the balance sheet in other liabilities.</span></div>
CY2020Q1	us-gaap	Goodwill Impairment Loss GoodwillImpairmentLoss	0	USD
CY2020Q1	us-gaap	Available For Sale Debt Securities Amortized Cost Basis AvailableForSaleDebtSecuritiesAmortizedCostBasis	1028173000	USD
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CY2020Q1	us-gaap	Available For Sale Debt Securities Accumulated Gross Unrealized Loss Before Tax AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax	51363000	USD
CY2020Q1	us-gaap	Debt Securities Available For Sale Allowance For Credit Loss DebtSecuritiesAvailableForSaleAllowanceForCreditLoss	0	USD
CY2020Q1	us-gaap	Available For Sale Securities Debt Securities AvailableForSaleSecuritiesDebtSecurities	1001999000	USD
CY2020Q1	us-gaap	Held To Maturity Securities Amortized Cost Before Other Than Temporary Impairment HeldToMaturitySecuritiesAmortizedCostBeforeOtherThanTemporaryImpairment	359770000	USD
CY2020Q1	us-gaap	Held To Maturity Securities Accumulated Unrecognized Holding Gain HeldToMaturitySecuritiesAccumulatedUnrecognizedHoldingGain	17676000	USD
CY2020Q1	us-gaap	Held To Maturity Securities Accumulated Unrecognized Holding Loss HeldToMaturitySecuritiesAccumulatedUnrecognizedHoldingLoss	4000	USD
CY2020Q1	us-gaap	Held To Maturity Securities Fair Value HeldToMaturitySecuritiesFairValue	377442000	USD
CY2020Q1	us-gaap	Debt Securities Held To Maturity Allowance For Credit Loss DebtSecuritiesHeldToMaturityAllowanceForCreditLoss	0	USD
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CY2019Q4	us-gaap	Available For Sale Debt Securities Accumulated Gross Unrealized Gain Before Tax AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax	10721000	USD
CY2019Q4	us-gaap	Available For Sale Debt Securities Accumulated Gross Unrealized Loss Before Tax AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax	7334000	USD
CY2019Q4	us-gaap	Available For Sale Securities Debt Securities AvailableForSaleSecuritiesDebtSecurities	950138000	USD
CY2019Q4	us-gaap	Held To Maturity Securities Amortized Cost Before Other Than Temporary Impairment HeldToMaturitySecuritiesAmortizedCostBeforeOtherThanTemporaryImpairment	375606000	USD
CY2019Q4	us-gaap	Held To Maturity Securities Accumulated Unrecognized Holding Gain HeldToMaturitySecuritiesAccumulatedUnrecognizedHoldingGain	6399000	USD
CY2019Q4	us-gaap	Held To Maturity Securities Accumulated Unrecognized Holding Loss HeldToMaturitySecuritiesAccumulatedUnrecognizedHoldingLoss	480000	USD
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CY2020Q1	us-gaap	Us Government Agencies Securities At Carrying Value USGovernmentAgenciesSecuritiesAtCarryingValue	793680000	USD
CY2020Q1	tcbk	Life Of Mortgage Backed Securities LifeOfMortgageBackedSecurities	P3Y2M26D
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CY2020Q1	us-gaap	Available For Sale Securities Debt Maturities Within One Year Fair Value AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearFairValue	607000	USD
CY2020Q1	us-gaap	Held To Maturity Securities Debt Maturities Within One Year Net Carrying Amount HeldToMaturitySecuritiesDebtMaturitiesWithinOneYearNetCarryingAmount	1279000	USD
CY2020Q1	us-gaap	Held To Maturity Securities Debt Maturities Within One Year Fair Value HeldToMaturitySecuritiesDebtMaturitiesWithinOneYearFairValue	1285000	USD
CY2020Q1	us-gaap	Available For Sale Securities Debt Maturities After One Through Five Years Amortized Cost AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughFiveYearsAmortizedCost	18264000	USD
CY2020Q1	us-gaap	Available For Sale Securities Debt Maturities After One Through Five Years Fair Value AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughFiveYearsFairValue	18958000	USD
CY2020Q1	us-gaap	Held To Maturity Securities Debt Maturities After One Through Five Years Net Carrying Amount HeldToMaturitySecuritiesDebtMaturitiesAfterOneThroughFiveYearsNetCarryingAmount	0	USD
CY2020Q1	us-gaap	Held To Maturity Securities Debt Maturities After One Through Five Years Fair Value HeldToMaturitySecuritiesDebtMaturitiesAfterOneThroughFiveYearsFairValue	0	USD
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CY2020Q1	us-gaap	Held To Maturity Securities Debt Maturities After Ten Years Net Carrying Amount HeldToMaturitySecuritiesDebtMaturitiesAfterTenYearsNetCarryingAmount	336220000	USD
CY2020Q1	us-gaap	Available For Sale Securities Debt Maturities After Five Through Ten Years Fair Value AvailableForSaleSecuritiesDebtMaturitiesAfterFiveThroughTenYearsFairValue	103673000	USD
CY2020Q1	us-gaap	Held To Maturity Securities Debt Maturities After Five Through Ten Years Net Carrying Amount HeldToMaturitySecuritiesDebtMaturitiesAfterFiveThroughTenYearsNetCarryingAmount	22271000	USD
CY2020Q1	us-gaap	Held To Maturity Securities Debt Maturities After Five Through Ten Years Fair Value HeldToMaturitySecuritiesDebtMaturitiesAfterFiveThroughTenYearsFairValue	23136000	USD
CY2020Q1	us-gaap	Available For Sale Securities Debt Maturities After Ten Years Amortized Cost AvailableForSaleSecuritiesDebtMaturitiesAfterTenYearsAmortizedCost	894760000	USD
CY2020Q1	us-gaap	Available For Sale Securities Debt Maturities After Ten Years Fair Value AvailableForSaleSecuritiesDebtMaturitiesAfterTenYearsFairValue	878761000	USD
CY2020Q1	us-gaap	Held To Maturity Securities Debt Maturities After Ten Years Fair Value HeldToMaturitySecuritiesDebtMaturitiesAfterTenYearsFairValue	353021000	USD
CY2020Q1	us-gaap	Available For Sale Debt Securities Amortized Cost Basis AvailableForSaleDebtSecuritiesAmortizedCostBasis	1028173000	USD
CY2020Q1	us-gaap	Available For Sale Securities Debt Securities AvailableForSaleSecuritiesDebtSecurities	1001999000	USD
CY2020Q1	us-gaap	Held To Maturity Securities HeldToMaturitySecurities	359770000	USD
CY2020Q1	us-gaap	Held To Maturity Securities Fair Value HeldToMaturitySecuritiesFairValue	377442000	USD
CY2019Q4	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position Less Than12 Months DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12Months	274950000	USD
CY2019Q4	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position Less Than12 Months Accumulated Loss DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12MonthsAccumulatedLoss	4845000	USD
CY2019Q4	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position12 Months Or Longer DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLonger	123833000	USD
CY2019Q4	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position12 Months Or Longer Accumulated Loss DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLongerAccumulatedLoss	2489000	USD
CY2019Q4	us-gaap	Debt Securities Available For Sale Unrealized Loss Position DebtSecuritiesAvailableForSaleUnrealizedLossPosition	398783000	USD
CY2019Q4	us-gaap	Debt Securities Available For Sale Unrealized Loss Position Accumulated Loss DebtSecuritiesAvailableForSaleUnrealizedLossPositionAccumulatedLoss	7334000	USD
CY2019Q4	us-gaap	Held To Maturity Securities Continuous Unrealized Loss Position Less Than Twelve Months Fair Value HeldToMaturitySecuritiesContinuousUnrealizedLossPositionLessThanTwelveMonthsFairValue	18813000	USD
CY2019Q4	us-gaap	Held To Maturity Securities Continuous Unrealized Loss Position Less Than12 Months Accumulated Loss HeldToMaturitySecuritiesContinuousUnrealizedLossPositionLessThan12MonthsAccumulatedLoss	142000	USD
CY2019Q4	us-gaap	Held To Maturity Securities Continuous Unrealized Loss Position Twelve Months Or Longer Fair Value HeldToMaturitySecuritiesContinuousUnrealizedLossPositionTwelveMonthsOrLongerFairValue	62952000	USD
CY2019Q4	us-gaap	Held To Maturity Securities Continuous Unrealized Loss Position12 Months Or Longer Accumulated Loss HeldToMaturitySecuritiesContinuousUnrealizedLossPosition12MonthsOrLongerAccumulatedLoss	338000	USD
CY2019Q4	us-gaap	Held To Maturity Securities Continuous Unrealized Loss Position Fair Value HeldToMaturitySecuritiesContinuousUnrealizedLossPositionFairValue	81765000	USD
CY2019Q4	us-gaap	Held To Maturity Securities Continuous Unrealized Loss Position Accumulated Loss HeldToMaturitySecuritiesContinuousUnrealizedLossPositionAccumulatedLoss	480000	USD
CY2019Q4	us-gaap	Financing Receivable Allowance For Credit Losses FinancingReceivableAllowanceForCreditLosses	30616000	USD
CY2020Q1	us-gaap	Financing Receivable Allowance For Credit Losses Write Offs FinancingReceivableAllowanceForCreditLossesWriteOffs	510000	USD
CY2020Q1	us-gaap	Financing Receivable Allowance For Credit Losses Recovery FinancingReceivableAllowanceForCreditLossesRecovery	892000	USD
CY2020Q1	us-gaap	Provision For Loan Losses Expensed ProvisionForLoanLossesExpensed	8000000	USD
CY2020Q1	us-gaap	Financing Receivable Allowance For Credit Losses FinancingReceivableAllowanceForCreditLosses	57911000	USD
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CY2019	us-gaap	Financing Receivable Allowance For Credit Losses Write Offs FinancingReceivableAllowanceForCreditLossesWriteOffs	3639000	USD
CY2019	us-gaap	Financing Receivable Allowance For Credit Losses Recovery FinancingReceivableAllowanceForCreditLossesRecovery	3363000	USD
CY2019	us-gaap	Provision For Loan Losses Expensed ProvisionForLoanLossesExpensed	-1690000	USD
CY2019Q4	us-gaap	Financing Receivable Allowance For Credit Losses FinancingReceivableAllowanceForCreditLosses	30616000	USD
CY2018Q4	us-gaap	Financing Receivable Allowance For Credit Losses FinancingReceivableAllowanceForCreditLosses	32582000	USD
CY2019Q1	us-gaap	Financing Receivable Allowance For Credit Losses Write Offs FinancingReceivableAllowanceForCreditLossesWriteOffs	726000	USD
CY2019Q1	us-gaap	Financing Receivable Allowance For Credit Losses Recovery FinancingReceivableAllowanceForCreditLossesRecovery	1808000	USD
CY2019Q1	us-gaap	Provision For Loan Losses Expensed ProvisionForLoanLossesExpensed	-1600000	USD
CY2019Q1	us-gaap	Financing Receivable Allowance For Credit Losses FinancingReceivableAllowanceForCreditLosses	32064000	USD
CY2020Q1	us-gaap	Financing Receivable Originated In Current Fiscal Year FinancingReceivableOriginatedInCurrentFiscalYear	150591000	USD
CY2020Q1	us-gaap	Financing Receivable Originated In Fiscal Year Before Latest Fiscal Year FinancingReceivableOriginatedInFiscalYearBeforeLatestFiscalYear	730766000	USD
CY2020Q1	us-gaap	Financing Receivable Originated Two Years Before Latest Fiscal Year FinancingReceivableOriginatedTwoYearsBeforeLatestFiscalYear	581856000	USD
CY2020Q1	us-gaap	Financing Receivable Originated Three Years Before Latest Fiscal Year FinancingReceivableOriginatedThreeYearsBeforeLatestFiscalYear	602117000	USD
CY2020Q1	us-gaap	Financing Receivable Originated Four Years Before Latest Fiscal Year FinancingReceivableOriginatedFourYearsBeforeLatestFiscalYear	521446000	USD
CY2020Q1	us-gaap	Financing Receivable Originated Five Or More Years Before Latest Fiscal Year FinancingReceivableOriginatedFiveOrMoreYearsBeforeLatestFiscalYear	1239712000	USD
CY2020Q1	us-gaap	Financing Receivable Revolving FinancingReceivableRevolving	542755000	USD
CY2020Q1	tcbk	Financing Receivable Revolving Converted To Term Loan FinancingReceivableRevolvingConvertedToTermLoan	9819000	USD
CY2020Q1	us-gaap	Notes Receivable Gross NotesReceivableGross	4379062000	USD
CY2019Q4	us-gaap	Financing Receivable Originated In Current Fiscal Year FinancingReceivableOriginatedInCurrentFiscalYear	733794000	USD
CY2019Q4	us-gaap	Financing Receivable Originated In Fiscal Year Before Latest Fiscal Year FinancingReceivableOriginatedInFiscalYearBeforeLatestFiscalYear	589023000	USD
CY2019Q4	us-gaap	Financing Receivable Originated Two Years Before Latest Fiscal Year FinancingReceivableOriginatedTwoYearsBeforeLatestFiscalYear	618788000	USD
CY2019Q4	us-gaap	Financing Receivable Originated Three Years Before Latest Fiscal Year FinancingReceivableOriginatedThreeYearsBeforeLatestFiscalYear	535175000	USD
CY2019Q4	tcbk	Financing Receivable Originated Four Or More Years Before Latest Fiscal Year FinancingReceivableOriginatedFourOrMoreYearsBeforeLatestFiscalYear	1298566000	USD
CY2019Q4	us-gaap	Financing Receivable Revolving FinancingReceivableRevolving	525933000	USD
CY2019Q4	tcbk	Financing Receivable Revolving Converted To Term Loan FinancingReceivableRevolvingConvertedToTermLoan	6087000	USD
CY2019Q4	us-gaap	Notes Receivable Gross NotesReceivableGross	4307366000	USD
CY2020Q1	us-gaap	Financing Receivable Nonaccrual No Allowance FinancingReceivableNonaccrualNoAllowance	15201000	USD
CY2020Q1	us-gaap	Financing Receivable Recorded Investment Nonaccrual Status FinancingReceivableRecordedInvestmentNonaccrualStatus	17955000	USD
CY2020Q1	us-gaap	Financing Receivable Recorded Investment90 Days Past Due And Still Accruing FinancingReceivableRecordedInvestment90DaysPastDueAndStillAccruing	0	USD
CY2019Q4	us-gaap	Financing Receivable Nonaccrual No Allowance FinancingReceivableNonaccrualNoAllowance	14825000	USD
CY2019Q4	us-gaap	Financing Receivable Recorded Investment Nonaccrual Status FinancingReceivableRecordedInvestmentNonaccrualStatus	16864000	USD
CY2019Q4	us-gaap	Financing Receivable Recorded Investment90 Days Past Due And Still Accruing FinancingReceivableRecordedInvestment90DaysPastDueAndStillAccruing	11000	USD
CY2020Q1	us-gaap	Financing Receivable Modifications Number Of Contracts2 FinancingReceivableModificationsNumberOfContracts2	6	contract
CY2020Q1	us-gaap	Financing Receivable Modifications Pre Modification Recorded Investment2 FinancingReceivableModificationsPreModificationRecordedInvestment2	680000	USD
CY2020Q1	us-gaap	Financing Receivable Modifications Post Modification Recorded Investment2 FinancingReceivableModificationsPostModificationRecordedInvestment2	738000	USD
CY2020Q1	tcbk	Financial Impact Increase Decrease Due To Troubled Debt Restructure Additional Provision FinancialImpactIncreaseDecreaseDueToTroubledDebtRestructureAdditionalProvision	21000	USD
CY2020Q1	us-gaap	Financing Receivable Modifications Subsequent Default Number Of Contracts1 FinancingReceivableModificationsSubsequentDefaultNumberOfContracts1	1000	contract
CY2020Q1	us-gaap	Financing Receivable Modifications Subsequent Default Recorded Investment1 FinancingReceivableModificationsSubsequentDefaultRecordedInvestment1	302000	USD
CY2020Q1	tcbk	Financial Impact Increase Decrease Due To Troubled Debt Restructure Charge Offs Or Additional Provision FinancialImpactIncreaseDecreaseDueToTroubledDebtRestructureChargeOffsOrAdditionalProvision	0	USD
CY2019Q1	us-gaap	Financing Receivable Modifications Number Of Contracts2 FinancingReceivableModificationsNumberOfContracts2	4	contract
CY2019Q1	us-gaap	Financing Receivable Modifications Pre Modification Recorded Investment2 FinancingReceivableModificationsPreModificationRecordedInvestment2	299000	USD
CY2019Q1	us-gaap	Financing Receivable Modifications Post Modification Recorded Investment2 FinancingReceivableModificationsPostModificationRecordedInvestment2	297000	USD
CY2019Q1	tcbk	Financial Impact Increase Decrease Due To Troubled Debt Restructure Additional Provision FinancialImpactIncreaseDecreaseDueToTroubledDebtRestructureAdditionalProvision	1000	USD
CY2019Q1	us-gaap	Financing Receivable Modifications Subsequent Default Number Of Contracts1 FinancingReceivableModificationsSubsequentDefaultNumberOfContracts1	1	contract
CY2019Q1	us-gaap	Financing Receivable Modifications Subsequent Default Recorded Investment1 FinancingReceivableModificationsSubsequentDefaultRecordedInvestment1	7000	USD
CY2019Q1	tcbk	Financial Impact Increase Decrease Due To Troubled Debt Restructure Charge Offs Or Additional Provision FinancialImpactIncreaseDecreaseDueToTroubledDebtRestructureChargeOffsOrAdditionalProvision	0	USD
CY2020Q1	tcbk	Lessee Operating Lease Number Of Renewal Term Options LesseeOperatingLeaseNumberOfRenewalTermOptions	1	renewalOption
CY2020Q1	us-gaap	Operating Lease Cost OperatingLeaseCost	1294000	USD
CY2019Q1	us-gaap	Operating Lease Cost OperatingLeaseCost	1311000	USD
CY2020Q1	us-gaap	Short Term Lease Cost ShortTermLeaseCost	63000	USD
CY2019Q1	us-gaap	Short Term Lease Cost ShortTermLeaseCost	71000	USD
CY2020Q1	us-gaap	Variable Lease Cost VariableLeaseCost	6000	USD
CY2019Q1	us-gaap	Variable Lease Cost VariableLeaseCost	-5000	USD
CY2020Q1	us-gaap	Sublease Income SubleaseIncome	34000	USD
CY2019Q1	us-gaap	Sublease Income SubleaseIncome	34000	USD
CY2020Q1	us-gaap	Lease Cost LeaseCost	1329000	USD
CY2019Q1	us-gaap	Lease Cost LeaseCost	1343000	USD
CY2020Q1	us-gaap	Operating Lease Payments OperatingLeasePayments	1237000	USD
CY2019Q1	us-gaap	Operating Lease Payments OperatingLeasePayments	1218000	USD
CY2020Q1	us-gaap	Right Of Use Asset Obtained In Exchange For Operating Lease Liability RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability	3393000	USD
CY2019Q1	us-gaap	Right Of Use Asset Obtained In Exchange For Operating Lease Liability RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability	32006000	USD
CY2020Q1	us-gaap	Operating Lease Weighted Average Remaining Lease Term1 OperatingLeaseWeightedAverageRemainingLeaseTerm1	P10Y3M18D
CY2019Q4	us-gaap	Deposit Liabilities Reclassified As Loans Receivable1 DepositLiabilitiesReclassifiedAsLoansReceivable1	1550000	USD
CY2019Q1	us-gaap	Operating Lease Weighted Average Remaining Lease Term1 OperatingLeaseWeightedAverageRemainingLeaseTerm1	P9Y6M
CY2020Q1	us-gaap	Operating Lease Weighted Average Discount Rate Percent OperatingLeaseWeightedAverageDiscountRatePercent	0.0317
CY2019Q1	us-gaap	Operating Lease Weighted Average Discount Rate Percent OperatingLeaseWeightedAverageDiscountRatePercent	0.0317
CY2020Q1	us-gaap	Lessee Operating Lease Liability Payments Remainder Of Fiscal Year LesseeOperatingLeaseLiabilityPaymentsRemainderOfFiscalYear	3412000	USD
CY2020Q1	us-gaap	Lessee Operating Lease Liability Payments Due Year Two LesseeOperatingLeaseLiabilityPaymentsDueYearTwo	4428000	USD
CY2020Q1	us-gaap	Lessee Operating Lease Liability Payments Due Year Three LesseeOperatingLeaseLiabilityPaymentsDueYearThree	4089000	USD
CY2020Q1	us-gaap	Lessee Operating Lease Liability Payments Due Year Four LesseeOperatingLeaseLiabilityPaymentsDueYearFour	3410000	USD
CY2020Q1	us-gaap	Lessee Operating Lease Liability Payments Due Year Five LesseeOperatingLeaseLiabilityPaymentsDueYearFive	3130000	USD
CY2020Q1	us-gaap	Lessee Operating Lease Liability Payments Due After Year Five LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive	17337000	USD
CY2020Q1	us-gaap	Lessee Operating Lease Liability Payments Due LesseeOperatingLeaseLiabilityPaymentsDue	35806000	USD
CY2020Q1	us-gaap	Lessee Operating Lease Liability Undiscounted Excess Amount LesseeOperatingLeaseLiabilityUndiscountedExcessAmount	5799000	USD
CY2020Q1	us-gaap	Operating Lease Liability OperatingLeaseLiability	30007000	USD
CY2020Q1	us-gaap	Noninterest Bearing Deposit Liabilities NoninterestBearingDepositLiabilities	1883143000	USD
CY2019Q4	us-gaap	Noninterest Bearing Deposit Liabilities NoninterestBearingDepositLiabilities	1832665000	USD
CY2020Q1	us-gaap	Interest Bearing Domestic Deposit Demand InterestBearingDomesticDepositDemand	1243192000	USD
CY2019Q4	us-gaap	Interest Bearing Domestic Deposit Demand InterestBearingDomesticDepositDemand	1242274000	USD
CY2020Q1	us-gaap	Deposits Savings Deposits DepositsSavingsDeposits	1857684000	USD
CY2019Q4	us-gaap	Deposits Savings Deposits DepositsSavingsDeposits	1851549000	USD
CY2020Q1	tcbk	Time Deposits250000 Or More TimeDeposits250000OrMore	111262000	USD
CY2019Q4	tcbk	Time Deposits250000 Or More TimeDeposits250000OrMore	129061000	USD
CY2020Q1	tcbk	Other Time Certificates Deposits OtherTimeCertificatesDeposits	307417000	USD
CY2019Q4	tcbk	Other Time Certificates Deposits OtherTimeCertificatesDeposits	311445000	USD
CY2020Q1	us-gaap	Deposits Deposits	5402698000	USD
CY2019Q4	us-gaap	Deposits Deposits	5366994000	USD
CY2020Q1	us-gaap	Deposit Liabilities Reclassified As Loans Receivable1 DepositLiabilitiesReclassifiedAsLoansReceivable1	1543000	USD
CY2020Q1	us-gaap	Proceeds From Dividends Received ProceedsFromDividendsReceived	26754000	USD
CY2019Q1	us-gaap	Proceeds From Dividends Received ProceedsFromDividendsReceived	8114000	USD
CY2019Q4	us-gaap	Stock Repurchase Program Number Of Shares Authorized To Be Repurchased StockRepurchaseProgramNumberOfSharesAuthorizedToBeRepurchased	1525000	shares
CY2019Q4	tcbk	Repurchased Shares Percentage Of Total Shares Outstanding RepurchasedSharesPercentageOfTotalSharesOutstanding	0.050
CY2019Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber	160500	shares
CY2019Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice	17.60
CY2020Q1	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period Gross ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross	0	shares
CY2020Q1	tcbk	Share Based Compensation Arrangements By Share Based Payment Award Options Outstanding Option Price Per Share Of Options Granted ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsOutstandingOptionPricePerShareOfOptionsGranted	0
CY2020Q1	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Grants In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice	0
CY2020Q1	us-gaap	Stock Issued During Period Shares Stock Options Exercised StockIssuedDuringPeriodSharesStockOptionsExercised	8000	shares
CY2020Q1	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Exercises In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice	18.50
CY2020Q1	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Forfeitures In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresInPeriod	0	shares
CY2020Q1	tcbk	Share Based Compensation Arrangements By Share Based Payment Award Options Outstanding Option Price Per Share Of Options Forfeited ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsOutstandingOptionPricePerShareOfOptionsForfeited	0
CY2020Q1	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Forfeitures In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsForfeituresInPeriodWeightedAverageExercisePrice	0
CY2020Q1	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber	152500	shares
CY2020Q1	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice	17.55
CY2020Q1	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber	152500	shares
CY2020Q1	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice	17.55
CY2020Q1	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue	1871000	USD
CY2020Q1	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Outstanding Weighted Average Remaining Contractual Term2 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsOutstandingWeightedAverageRemainingContractualTerm2	P2Y7M6D
CY2020Q1	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Outstanding Weighted Average Remaining Contractual Terms ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsOutstandingWeightedAverageRemainingContractualTerms	P1Y1M6D
CY2020Q1	tcbk	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Release In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsReleaseInPeriod	0	shares
CY2020Q1	tcbk	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Increase In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsIncreaseInPeriod	76851	shares
CY2020Q1	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	9126000	USD
CY2019Q1	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	9070000	USD
CY2020Q1	us-gaap	Bank Owned Life Insurance Income BankOwnedLifeInsuranceIncome	720000	USD
CY2019Q1	us-gaap	Bank Owned Life Insurance Income BankOwnedLifeInsuranceIncome	775000	USD
CY2020Q1	tcbk	Asset Management And Commission Income AssetManagementAndCommissionIncome	916000	USD
CY2019Q1	tcbk	Asset Management And Commission Income AssetManagementAndCommissionIncome	642000	USD
CY2020Q1	us-gaap	Gain Loss On Sales Of Loans Net GainLossOnSalesOfLoansNet	891000	USD
CY2019Q1	us-gaap	Gain Loss On Sales Of Loans Net GainLossOnSalesOfLoansNet	412000	USD
CY2020Q1	us-gaap	Brokerage Commissions Revenue BrokerageCommissionsRevenue	193000	USD
CY2019Q1	us-gaap	Brokerage Commissions Revenue BrokerageCommissionsRevenue	220000	USD
CY2020Q1	tcbk	Sale Of Customer Checks SaleOfCustomerChecks	124000	USD
CY2019Q1	tcbk	Sale Of Customer Checks SaleOfCustomerChecks	140000	USD
CY2020Q1	us-gaap	Gain On Sale Of Investments GainOnSaleOfInvestments	0	USD
CY2019Q1	us-gaap	Gain On Sale Of Investments GainOnSaleOfInvestments	0	USD
CY2020Q1	us-gaap	Marketable Securities Gain Loss MarketableSecuritiesGainLoss	47000	USD
CY2019Q1	us-gaap	Marketable Securities Gain Loss MarketableSecuritiesGainLoss	36000	USD
CY2020Q1	tcbk	Operating Interest Income Other OperatingInterestIncomeOther	-197000	USD
CY2019Q1	tcbk	Operating Interest Income Other OperatingInterestIncomeOther	508000	USD
CY2020Q1	us-gaap	Noninterest Income Other NoninterestIncomeOther	2694000	USD
CY2019Q1	us-gaap	Noninterest Income Other NoninterestIncomeOther	2733000	USD
CY2020Q1	us-gaap	Noninterest Income NoninterestIncome	11820000	USD
CY2019Q1	us-gaap	Noninterest Income NoninterestIncome	11803000	USD
CY2020Q1	tcbk	Base Salaries Net Of Deferred Loan Origination Costs BaseSalariesNetOfDeferredLoanOriginationCosts	17623000	USD
CY2019Q1	tcbk	Base Salaries Net Of Deferred Loan Origination Costs BaseSalariesNetOfDeferredLoanOriginationCosts	16757000	USD
CY2020Q1	tcbk	Incentive Compensation Expense IncentiveCompensationExpense	3101000	USD
CY2019Q1	tcbk	Incentive Compensation Expense IncentiveCompensationExpense	2567000	USD
CY2020Q1	us-gaap	Other Labor Related Expenses OtherLaborRelatedExpenses	6548000	USD
CY2019Q1	us-gaap	Other Labor Related Expenses OtherLaborRelatedExpenses	5804000	USD
CY2020Q1	us-gaap	Labor And Related Expense LaborAndRelatedExpense	27272000	USD
CY2019Q1	us-gaap	Labor And Related Expense LaborAndRelatedExpense	25128000	USD
CY2020Q1	us-gaap	Occupancy Net OccupancyNet	3875000	USD
CY2019Q1	us-gaap	Occupancy Net OccupancyNet	3774000	USD
CY2020Q1	us-gaap	Information Technology And Data Processing InformationTechnologyAndDataProcessing	3367000	USD
CY2019Q1	us-gaap	Information Technology And Data Processing InformationTechnologyAndDataProcessing	3349000	USD
CY2020Q1	us-gaap	Equipment Expense EquipmentExpense	1512000	USD
CY2019Q1	us-gaap	Equipment Expense EquipmentExpense	1867000	USD
CY2020Q1	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	1431000	USD
CY2019Q1	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	1431000	USD
CY2020Q1	us-gaap	Advertising Expense AdvertisingExpense	665000	USD
CY2019Q1	us-gaap	Advertising Expense AdvertisingExpense	1331000	USD
CY2020Q1	tcbk	Network Charges NetworkCharges	1373000	USD
CY2019Q1	tcbk	Network Charges NetworkCharges	1323000	USD
CY2020Q1	us-gaap	Professional Fees ProfessionalFees	703000	USD
CY2019Q1	us-gaap	Professional Fees ProfessionalFees	839000	USD
CY2020Q1	us-gaap	Communication Communication	725000	USD
CY2019Q1	us-gaap	Communication Communication	797000	USD
CY2020Q1	tcbk	Regulatory Assessments And Insurance RegulatoryAssessmentsAndInsurance	95000	USD
CY2019Q1	tcbk	Regulatory Assessments And Insurance RegulatoryAssessmentsAndInsurance	511000	USD
CY2020Q1	us-gaap	Postage Expense PostageExpense	290000	USD
CY2019Q1	us-gaap	Postage Expense PostageExpense	310000	USD
CY2020Q1	tcbk	Operational Losses OperationalLosses	221000	USD
CY2019Q1	tcbk	Operational Losses OperationalLosses	225000	USD
CY2020Q1	tcbk	Courier Service CourierService	331000	USD
CY2019Q1	tcbk	Courier Service CourierService	270000	USD
CY2020Q1	tcbk	Loss Gain On Sale Of Foreclosed Assets LossGainOnSaleOfForeclosedAssets	41000	USD
CY2019Q1	tcbk	Loss Gain On Sale Of Foreclosed Assets LossGainOnSaleOfForeclosedAssets	99000	USD
CY2019Q1	us-gaap	Other Comprehensive Income Loss Amortization Adjustment From Aoci Pension And Other Postretirement Benefit Plans For Net Prior Service Cost Credit Before Tax OtherComprehensiveIncomeLossAmortizationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetPriorServiceCostCreditBeforeTax	-13000	USD
CY2020Q1	us-gaap	Gain Loss On Disposition Of Assets1 GainLossOnDispositionOfAssets1	0	USD
CY2019Q1	us-gaap	Gain Loss On Disposition Of Assets1 GainLossOnDispositionOfAssets1	-24000	USD
CY2020Q1	tcbk	Other Operating Expenses OtherOperatingExpenses	3000000	USD
CY2019Q1	tcbk	Other Operating Expenses OtherOperatingExpenses	4372000	USD
CY2020Q1	us-gaap	Other Noninterest Expense OtherNoninterestExpense	17547000	USD
CY2019Q1	us-gaap	Other Noninterest Expense OtherNoninterestExpense	20324000	USD
CY2020Q1	us-gaap	Noninterest Expense NoninterestExpense	44819000	USD
CY2019Q1	us-gaap	Noninterest Expense NoninterestExpense	45452000	USD
CY2020Q1	us-gaap	Net Income Loss NetIncomeLoss	16121000	USD
CY2019Q1	us-gaap	Net Income Loss NetIncomeLoss	22726000	USD
CY2020Q1	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	30395000	shares
CY2019Q1	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	30424000	shares
CY2020Q1	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci Pension And Other Postretirement Benefit Plans For Net Gain Loss Before Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetGainLossBeforeTax	-478000	USD
CY2020Q1	us-gaap	Incremental Common Shares Attributable To Share Based Payment Arrangements IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	128000	shares
CY2019Q1	us-gaap	Incremental Common Shares Attributable To Share Based Payment Arrangements IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	234000	shares
CY2020Q1	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	30523000	shares
CY2019Q1	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	30658000	shares
CY2020Q1	us-gaap	Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	0	shares
CY2019Q1	us-gaap	Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	0	shares
CY2020Q1	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Before Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodBeforeTax	-29561000	USD
CY2019Q1	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Before Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodBeforeTax	12710000	USD
CY2020Q1	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesTax	-8739000	USD
CY2019Q1	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesTax	3758000	USD
CY2020Q1	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Adjustment Net Of Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax	-20822000	USD
CY2019Q1	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Adjustment Net Of Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax	8952000	USD
CY2020Q1	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Adjustment Before Reclassification Adjustments And Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentBeforeReclassificationAdjustmentsAndTax	-448000	USD
CY2019Q1	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Adjustment Before Reclassification Adjustments And Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentBeforeReclassificationAdjustmentsAndTax	89000	USD
CY2020Q1	us-gaap	Other Comprehensive Income Loss Amortization Adjustment From Aoci Pension And Other Postretirement Benefit Plans For Net Prior Service Cost Credit Before Tax OtherComprehensiveIncomeLossAmortizationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetPriorServiceCostCreditBeforeTax	-14000	USD
CY2019Q1	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci Pension And Other Postretirement Benefit Plans For Net Gain Loss Before Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetGainLossBeforeTax	-102000	USD
CY2020Q1	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci Pension And Other Postretirement Benefit Plans Before Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansBeforeTax	464000	USD
CY2019Q1	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci Pension And Other Postretirement Benefit Plans Before Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansBeforeTax	89000	USD
CY2020Q1	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Adjustment Before Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentBeforeTax	-912000	USD
CY2019Q1	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Adjustment Before Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentBeforeTax	0	USD
CY2020Q1	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansTax	0	USD
CY2019Q1	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansTax	0	USD
CY2020Q1	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Adjustment Net Of Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax	-912000	USD
CY2019Q1	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Adjustment Net Of Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax	0	USD
CY2020Q1	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	-19910000	USD
CY2019Q1	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	8952000	USD
CY2020Q1	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	-25132000	USD
CY2019Q4	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	-5222000	USD
CY2020Q1	tcbk	Number Of Investment Securities Classified As Level3 NumberOfInvestmentSecuritiesClassifiedAsLevel3	0	investment_security
CY2020Q1	tcbk	Loan Charged Off Carrying Value LoanChargedOffCarryingValue	0	USD

Files In Submission

Name	View Source	Status
0000356171-20-000048-index-headers.html	Edgar Link	pending
0000356171-20-000048-index.html	Edgar Link	pending
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Trico Bancshares Stock $tcbk

2020 Q1 Form 10-Q Financial Statement

#000035617120000048 Filed on May 11, 2020

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$TCBK Trico Bancshares Stock $tcbk

2020 Q1 Form 10-Q Financial Statement

#000035617120000048 Filed on May 11, 2020

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$TCBK
Trico Bancshares Stock $tcbk