$TCBK
Trico Bancshares Stock $tcbk

$tcbk Overview Financials Valuation SEC Filings Company Website

2018 Q2 Form 10-Q Financial Statement

#000119312518244470 Filed on August 09, 2018

Income Statement

Concept	2018 Q2	2017 Q2
Revenue	$48.48M	$45.04M
YoY Change	7.62%	5.76%
Cost Of Revenue
YoY Change
Gross Profit
YoY Change
Gross Profit Margin
Selling, General & Admin
YoY Change
% of Gross Profit
Research & Development
YoY Change
% of Gross Profit
Depreciation & Amortization	$2.000M	$2.000M
YoY Change	0.0%	-4.76%
% of Gross Profit
Operating Expenses
YoY Change
Operating Profit
YoY Change
Interest Expense	$2.609M	$1.610M
YoY Change	62.05%	12.59%
% of Operating Profit
Other Income/Expense, Net
YoY Change
Pretax Income	$20.81M	$21.24M
YoY Change	-2.0%	42.42%
Income Tax	$5.782M	$7.647M
% Of Pretax Income	27.78%	36.01%
Net Earnings	$15.03M	$13.59M
YoY Change	10.6%	44.49%
Net Earnings / Revenue	31.0%	30.17%
Basic Earnings Per Share	$0.65	$0.59
Diluted Earnings Per Share	$0.65	$0.58
COMMON SHARES
Basic Shares Outstanding	22.98M shares	22.90M shares
Diluted Shares Outstanding	23.28M shares	23.24M shares

Balance Sheet

Concept	2018 Q2	2017 Q2
SHORT-TERM ASSETS
Cash & Short-Term Investments
YoY Change
Cash & Equivalents	$184.1M	$167.6M
Short-Term Investments
Other Short-Term Assets
YoY Change
Inventory
Prepaid Expenses
Receivables
Other Receivables
Total Short-Term Assets
YoY Change
LONG-TERM ASSETS
Property, Plant & Equipment	$59.01M	$51.56M
YoY Change	14.46%	-0.33%
Goodwill	$64.31M	$64.31M
YoY Change	0.0%	0.0%
Intangibles
YoY Change
Long-Term Investments
YoY Change
Other Assets	$27.70M	$33.10M
YoY Change	-16.31%	9.97%
Total Long-Term Assets
YoY Change
TOTAL ASSETS
Total Short-Term Assets
Total Long-Term Assets
Total Assets	$4.863B	$4.520B
YoY Change	7.59%	3.85%
SHORT-TERM LIABILITIES
YoY Change
Accounts Payable	$1.200M	$800.0K
YoY Change	50.0%	14.29%
Accrued Expenses	$11.90M	$10.90M
YoY Change	9.17%	2.83%
Deferred Revenue
YoY Change
Short-Term Debt	$16.80M	$16.40M
YoY Change	2.44%	-15.9%
Long-Term Debt Due
YoY Change
Total Short-Term Liabilities	$13.10M	$11.70M
YoY Change	11.97%	3.54%
LONG-TERM LIABILITIES
Long-Term Debt	$57.00M	$56.80M
YoY Change	0.35%	0.35%
Other Long-Term Liabilities	$3.596M	$1.105M
YoY Change	225.43%	-73.74%
Total Long-Term Liabilities	$3.596M	$1.105M
YoY Change	225.43%	-73.74%
TOTAL LIABILITIES
Total Short-Term Liabilities	$13.10M	$11.70M
Total Long-Term Liabilities	$3.596M	$1.105M
Total Liabilities	$4.351B	$4.021B
YoY Change	8.2%	3.67%
SHAREHOLDERS EQUITY
Retained Earnings	$276.9M	$248.6M
YoY Change	11.36%	14.09%
Common Stock	$256.6M	$254.8M
YoY Change	0.7%	1.98%
Preferred Stock
YoY Change
Treasury Stock (at cost)
YoY Change
Treasury Stock Shares
Shareholders Equity	$512.3M	$498.9M
YoY Change
Total Liabilities & Shareholders Equity	$4.863B	$4.520B
YoY Change	7.59%	3.85%

Cashflow Statement

Concept	2018 Q2	2017 Q2
OPERATING ACTIVITIES
Net Income	$15.03M	$13.59M
YoY Change	10.6%	44.49%
Depreciation, Depletion And Amortization	$2.000M	$2.000M
YoY Change	0.0%	-4.76%
Cash From Operating Activities	$9.200M	$8.200M
YoY Change	12.2%	-57.95%
INVESTING ACTIVITIES
Capital Expenditures	-$1.900M	-$3.500M
YoY Change	-45.71%	105.88%
Acquisitions
YoY Change
Other Investing Activities	-$82.50M	-$142.9M
YoY Change	-42.27%	-0.42%
Cash From Investing Activities	-$84.40M	-$146.4M
YoY Change	-42.35%	0.83%
FINANCING ACTIVITIES
Cash Dividend Paid
YoY Change
Common Stock Issuance & Retirement, Net
YoY Change
Debt Paid & Issued, Net
YoY Change
Cash From Financing Activities	76.30M	-17.70M
YoY Change	-531.07%	-61.94%
NET CHANGE
Cash From Operating Activities	9.200M	8.200M
Cash From Investing Activities	-84.40M	-146.4M
Cash From Financing Activities	76.30M	-17.70M
Net Change In Cash	1.100M	-155.9M
YoY Change	-100.71%	-9.47%
FREE CASH FLOW
Cash From Operating Activities	$9.200M	$8.200M
Capital Expenditures	-$1.900M	-$3.500M
Free Cash Flow	$11.10M	$11.70M
YoY Change	-5.13%	-44.81%

Facts In Submission

Frame	Concept Type	Concept / XBRL Key	Value	Unit
CY2007Q3	us-gaap	Common Stock Shares Outstanding CommonStockSharesOutstanding	15814662	shares
CY2007Q3	us-gaap	Stock Repurchase Program Number Of Shares Authorized To Be Repurchased StockRepurchaseProgramNumberOfSharesAuthorizedToBeRepurchased	500000	shares
CY2007Q3	tcbk	Stock Repurchase Program Percentage Of Common Stock StockRepurchaseProgramPercentageOfCommonStock	0.032	pure
CY2018Q3	dei	Entity Common Stock Shares Outstanding EntityCommonStockSharesOutstanding	30411135	shares
CY2017Q1	us-gaap	Certain Loans Acquired In Transfer Not Accounted For As Debt Securities Accretable Yield CertainLoansAcquiredInTransferNotAccountedForAsDebtSecuritiesAccretableYield	9560000
CY2017Q1	us-gaap	Loans And Leases Receivable Allowance LoansAndLeasesReceivableAllowance	31017000
CY2017Q1	tcbk	Fdic Indemnification Assets And Liabilities FdicIndemnificationAssetsAndLiabilities	-895000
CY2017Q1	tcbk	Reserve For Unfunded Commitments ReserveForUnfundedCommitments	2734000
CY2017Q2	us-gaap	Cash Surrender Value Of Life Insurance CashSurrenderValueOfLifeInsurance	96410000
CY2017Q2	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	167649000
CY2017Q2	us-gaap	Certain Loans Acquired In Transfer Not Accounted For As Debt Securities Accretable Yield CertainLoansAcquiredInTransferNotAccountedForAsDebtSecuritiesAccretableYield	7956000
CY2017Q2	us-gaap	Financing Receivable Allowance For Credit Losses Individually Evaluated For Impairment1 FinancingReceivableAllowanceForCreditLossesIndividuallyEvaluatedForImpairment1	1686000
CY2017Q2	us-gaap	Financing Receivable Collectively Evaluated For Impairment FinancingReceivableCollectivelyEvaluatedForImpairment	2779866000
CY2017Q2	us-gaap	Financing Receivable Individually Evaluated For Impairment FinancingReceivableIndividuallyEvaluatedForImpairment	26235000
CY2017Q2	us-gaap	Financing Receivable Allowance For Credit Losses Collectively Evaluated For Impairment FinancingReceivableAllowanceForCreditLossesCollectivelyEvaluatedForImpairment	24026000
CY2017Q2	us-gaap	Foreclosed Assets ForeclosedAssets	3489000
CY2017Q2	us-gaap	Loans And Leases Receivable Gross Carrying Amount LoansAndLeasesReceivableGrossCarryingAmount	2826393000
CY2017Q2	us-gaap	Loans And Leases Receivable Allowance LoansAndLeasesReceivableAllowance	28143000
CY2017Q2	us-gaap	Stockholders Equity StockholdersEquity	498944000
CY2017Q2	tcbk	Reserve For Unfunded Commitments ReserveForUnfundedCommitments	2599000
CY2017Q2	tcbk	Increased Capital Required For Capital Adequacy To Risk Weighted Assets IncreasedCapitalRequiredForCapitalAdequacyToRiskWeightedAssets	0.00625	pure
CY2018Q1	us-gaap	Certain Loans Acquired In Transfer Not Accounted For As Debt Securities Accretable Yield CertainLoansAcquiredInTransferNotAccountedForAsDebtSecuritiesAccretableYield	4147000
CY2018Q1	us-gaap	Loans And Leases Receivable Allowance LoansAndLeasesReceivableAllowance	29973000
CY2018Q1	tcbk	Reserve For Unfunded Commitments ReserveForUnfundedCommitments	3864000
CY2018Q2	us-gaap	Accrued Investment Income Receivable AccruedInvestmentIncomeReceivable	14253000
CY2018Q2	us-gaap	Accumulated Depreciation Depletion And Amortization Property Plant And Equipment AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment	42066000
CY2018Q2	us-gaap	Assets Held In Trust AssetsHeldInTrust	1710000
CY2018Q2	us-gaap	Accrued Employee Benefits Current And Noncurrent AccruedEmployeeBenefitsCurrentAndNoncurrent	5014000
CY2018Q2	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	-21123000
CY2018Q2	us-gaap	Asset Backed Securities At Carrying Value AssetBackedSecuritiesAtCarryingValue	410073000
CY2018Q2	us-gaap	Assets Assets	4863153000
CY2018Q2	us-gaap	Available For Sale Securities Accumulated Gross Unrealized Loss Before Tax AvailableForSaleSecuritiesAccumulatedGrossUnrealizedLossBeforeTax	25267000
CY2018Q2	us-gaap	Available For Sale Securities Continuous Unrealized Loss Position12 Months Or Longer Accumulated Loss AvailableForSaleSecuritiesContinuousUnrealizedLossPosition12MonthsOrLongerAccumulatedLoss	8992000
CY2018Q2	us-gaap	Available For Sale Securities Continuous Unrealized Loss Position Accumulated Loss AvailableForSaleSecuritiesContinuousUnrealizedLossPositionAccumulatedLoss	25267000
CY2018Q2	us-gaap	Available For Sale Securities Continuous Unrealized Loss Position Less Than Twelve Months Fair Value AvailableForSaleSecuritiesContinuousUnrealizedLossPositionLessThanTwelveMonthsFairValue	503911000
CY2018Q2	us-gaap	Available For Sale Securities Debt Maturities After Five Through Ten Years Fair Value AvailableForSaleSecuritiesDebtMaturitiesAfterFiveThroughTenYearsFairValue	3331000
CY2018Q2	us-gaap	Available For Sale Securities Accumulated Gross Unrealized Gain Before Tax AvailableForSaleSecuritiesAccumulatedGrossUnrealizedGainBeforeTax	616000
CY2018Q2	us-gaap	Available For Sale Securities Continuous Unrealized Loss Position Fair Value AvailableForSaleSecuritiesContinuousUnrealizedLossPositionFairValue	672471000
CY2018Q2	us-gaap	Available For Sale Securities Debt Maturities After Five Through Ten Years Amortized Cost AvailableForSaleSecuritiesDebtMaturitiesAfterFiveThroughTenYearsAmortizedCost	3229000
CY2018Q2	us-gaap	Available For Sale Securities Debt Maturities After One Through Five Years Fair Value AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughFiveYearsFairValue	234000
CY2018Q2	us-gaap	Available For Sale Securities Debt Maturities After Ten Years Amortized Cost AvailableForSaleSecuritiesDebtMaturitiesAfterTenYearsAmortizedCost	775395000
CY2018Q2	us-gaap	Capitalized Computer Software Net CapitalizedComputerSoftwareNet	793000
CY2018Q2	us-gaap	Available For Sale Debt Securities Amortized Cost Basis AvailableForSaleDebtSecuritiesAmortizedCostBasis	778858000
CY2018Q2	us-gaap	Available For Sale Securities AvailableForSaleSecurities	754207000
CY2018Q2	us-gaap	Available For Sale Securities Continuous Unrealized Loss Position Twelve Months Or Longer Fair Value AvailableForSaleSecuritiesContinuousUnrealizedLossPositionTwelveMonthsOrLongerFairValue	168560000
CY2018Q2	us-gaap	Available For Sale Securities Debt Maturities Within One Year Amortized Cost AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearAmortizedCost	1000
CY2018Q2	us-gaap	Available For Sale Securities Debt Maturities Within One Year Fair Value AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearFairValue	1000
CY2018Q2	us-gaap	Available For Sale Securities Amortized Cost AvailableForSaleSecuritiesAmortizedCost	778858000
CY2018Q2	us-gaap	Available For Sale Securities Continuous Unrealized Loss Position Less Than12 Months Accumulated Loss AvailableForSaleSecuritiesContinuousUnrealizedLossPositionLessThan12MonthsAccumulatedLoss	16275000
CY2018Q2	us-gaap	Available For Sale Securities Debt Maturities After One Through Five Years Amortized Cost AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughFiveYearsAmortizedCost	233000
CY2018Q2	us-gaap	Available For Sale Securities Debt Maturities After Ten Years Fair Value AvailableForSaleSecuritiesDebtMaturitiesAfterTenYearsFairValue	750641000
CY2018Q2	us-gaap	Available For Sale Securities Debt Securities AvailableForSaleSecuritiesDebtSecurities	754207000
CY2018Q2	us-gaap	Cash And Due From Banks CashAndDueFromBanks	94661000
CY2018Q2	us-gaap	Cash Surrender Value Of Life Insurance CashSurrenderValueOfLifeInsurance	99047000
CY2018Q2	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	184062000
CY2018Q2	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	184062000
CY2018Q2	us-gaap	Certain Loans Acquired In Transfer Not Accounted For As Debt Securities Accretable Yield CertainLoansAcquiredInTransferNotAccountedForAsDebtSecuritiesAccretableYield	3996000
CY2018Q2	us-gaap	Commitments And Contingencies CommitmentsAndContingencies
CY2018Q2	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	50000000	shares
CY2018Q2	us-gaap	Common Stock Shares Outstanding CommonStockSharesOutstanding	23004153	shares
CY2018Q2	us-gaap	Capital Required To Be Well Capitalized To Risk Weighted Assets CapitalRequiredToBeWellCapitalizedToRiskWeightedAssets	0.1000	pure
CY2018Q2	us-gaap	Common Stock No Par Value CommonStockNoParValue	0
CY2018Q2	us-gaap	Common Stock Shares Issued CommonStockSharesIssued	23004153	shares
CY2018Q2	us-gaap	Common Stock Value CommonStockValue	256590000
CY2018Q2	us-gaap	Construction In Progress Gross ConstructionInProgressGross	1870000
CY2018Q2	us-gaap	Debt Instrument Face Amount DebtInstrumentFaceAmount	62889000
CY2018Q2	us-gaap	Deferred Compensation Liability Current And Noncurrent DeferredCompensationLiabilityCurrentAndNoncurrent	6932000
CY2018Q2	us-gaap	Deferred Tax Assets Liabilities Net DeferredTaxAssetsLiabilitiesNet	27665000
CY2018Q2	us-gaap	Defined Benefit Pension Plan Current And Noncurrent Liabilities DefinedBenefitPensionPlanCurrentAndNoncurrentLiabilities	28880000
CY2018Q2	us-gaap	Deposit Liabilities Reclassified As Loans Receivable1 DepositLiabilitiesReclassifiedAsLoansReceivable1	1533000
CY2018Q2	us-gaap	Deposits Savings Deposits DepositsSavingsDeposits	1385268000
CY2018Q2	us-gaap	Deferred Revenue DeferredRevenue	1449000
CY2018Q2	us-gaap	Deposits Deposits	4077222000
CY2018Q2	us-gaap	Employee Service Share Based Compensation Nonvested Awards Total Compensation Cost Not Yet Recognized EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized	20000
CY2018Q2	us-gaap	Equity Method Investment Aggregate Cost EquityMethodInvestmentAggregateCost	1710000
CY2018Q2	us-gaap	Equity Securities Fv Ni EquitySecuritiesFvNi	2868000
CY2018Q2	us-gaap	Fair Value Liabilities Level2 To Level1 Transfers Amount FairValueLiabilitiesLevel2ToLevel1TransfersAmount	0
CY2018Q2	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	4863153000
CY2018Q2	us-gaap	Financing Receivable Recorded Investment Nonaccrual Status FinancingReceivableRecordedInvestmentNonaccrualStatus	19097000
CY2018Q2	us-gaap	Fair Value Liabilities Level1 To Level2 Transfers Amount FairValueLiabilitiesLevel1ToLevel2TransfersAmount	0
CY2018Q2	us-gaap	Federal Home Loan Bank Advances General Debt Obligations Disclosures Amount Of Available Unused Funds FederalHomeLoanBankAdvancesGeneralDebtObligationsDisclosuresAmountOfAvailableUnusedFunds	20000000
CY2018Q2	us-gaap	Federal Home Loan Bank Advances General Debt Obligations Disclosures Maximum Amount Available FederalHomeLoanBankAdvancesGeneralDebtObligationsDisclosuresMaximumAmountAvailable	1622655000
CY2018Q2	us-gaap	Financing Receivable Allowance For Credit Losses Individually Evaluated For Impairment1 FinancingReceivableAllowanceForCreditLossesIndividuallyEvaluatedForImpairment1	2889000
CY2018Q2	us-gaap	Financing Receivable Collectively Evaluated For Impairment FinancingReceivableCollectivelyEvaluatedForImpairment	3105241000
CY2018Q2	us-gaap	Financing Receivable Individually Evaluated For Impairment FinancingReceivableIndividuallyEvaluatedForImpairment	27211000
CY2018Q2	us-gaap	Fair Value Assets Level1 To Level2 Transfers Amount FairValueAssetsLevel1ToLevel2TransfersAmount	0
CY2018Q2	us-gaap	Fair Value Assets Level2 To Level1 Transfers Amount FairValueAssetsLevel2ToLevel1TransfersAmount	0
CY2018Q2	us-gaap	Federal Home Loan Bank Advances Activity For Year Maximum Outstanding At Any Month End FederalHomeLoanBankAdvancesActivityForYearMaximumOutstandingAtAnyMonthEnd	136020000
CY2018Q2	us-gaap	Held To Maturity Securities HeldToMaturitySecurities	477745000
CY2018Q2	us-gaap	Held To Maturity Securities Continuous Unrealized Loss Position Fair Value HeldToMaturitySecuritiesContinuousUnrealizedLossPositionFairValue	430187000
CY2018Q2	us-gaap	Financing Receivable Allowance For Credit Losses Collectively Evaluated For Impairment FinancingReceivableAllowanceForCreditLossesCollectivelyEvaluatedForImpairment	26496000
CY2018Q2	us-gaap	Foreclosed Assets ForeclosedAssets	1374000
CY2018Q2	us-gaap	Goodwill Goodwill	64311000
CY2018Q2	us-gaap	Held To Maturity Securities Continuous Unrealized Loss Position Less Than12 Months Accumulated Loss HeldToMaturitySecuritiesContinuousUnrealizedLossPositionLessThan12MonthsAccumulatedLoss	5730000
CY2018Q2	us-gaap	Held To Maturity Securities Debt Maturities Within One Year Fair Value HeldToMaturitySecuritiesDebtMaturitiesWithinOneYearFairValue	0
CY2018Q2	us-gaap	Income Tax Receivable IncomeTaxReceivable	4754000
CY2018Q2	us-gaap	Held To Maturity Securities Amortized Cost Before Other Than Temporary Impairment HeldToMaturitySecuritiesAmortizedCostBeforeOtherThanTemporaryImpairment	477745000
CY2018Q2	us-gaap	Held To Maturity Securities Continuous Unrealized Loss Position12 Months Or Longer Accumulated Loss HeldToMaturitySecuritiesContinuousUnrealizedLossPosition12MonthsOrLongerAccumulatedLoss	3762000
CY2018Q2	us-gaap	Held To Maturity Securities Continuous Unrealized Loss Position Accumulated Loss HeldToMaturitySecuritiesContinuousUnrealizedLossPositionAccumulatedLoss	9492000
CY2018Q2	us-gaap	Held To Maturity Securities Continuous Unrealized Loss Position Twelve Months Or Longer Fair Value HeldToMaturitySecuritiesContinuousUnrealizedLossPositionTwelveMonthsOrLongerFairValue	94337000
CY2018Q2	us-gaap	Held To Maturity Securities Debt Maturities After Five Through Ten Years Net Carrying Amount HeldToMaturitySecuritiesDebtMaturitiesAfterFiveThroughTenYearsNetCarryingAmount	27400000
CY2018Q2	us-gaap	Held To Maturity Securities Debt Maturities After Ten Years Fair Value HeldToMaturitySecuritiesDebtMaturitiesAfterTenYearsFairValue	440582000
CY2018Q2	us-gaap	Held To Maturity Securities Fair Value HeldToMaturitySecuritiesFairValue	468621000
CY2018Q2	us-gaap	Held To Maturity Securities Accumulated Unrecognized Holding Gain HeldToMaturitySecuritiesAccumulatedUnrecognizedHoldingGain	368000
CY2018Q2	us-gaap	Held To Maturity Securities Accumulated Unrecognized Holding Loss HeldToMaturitySecuritiesAccumulatedUnrecognizedHoldingLoss	9492000
CY2018Q2	us-gaap	Held To Maturity Securities Continuous Unrealized Loss Position Less Than Twelve Months Fair Value HeldToMaturitySecuritiesContinuousUnrealizedLossPositionLessThanTwelveMonthsFairValue	335850000
CY2018Q2	us-gaap	Held To Maturity Securities Debt Maturities After Five Through Ten Years Fair Value HeldToMaturitySecuritiesDebtMaturitiesAfterFiveThroughTenYearsFairValue	26800000
CY2018Q2	us-gaap	Held To Maturity Securities Debt Maturities After One Through Five Years Fair Value HeldToMaturitySecuritiesDebtMaturitiesAfterOneThroughFiveYearsFairValue	1239000
CY2018Q2	us-gaap	Held To Maturity Securities Debt Maturities After One Through Five Years Net Carrying Amount HeldToMaturitySecuritiesDebtMaturitiesAfterOneThroughFiveYearsNetCarryingAmount	1223000
CY2018Q2	us-gaap	Held To Maturity Securities Debt Maturities After Ten Years Net Carrying Amount HeldToMaturitySecuritiesDebtMaturitiesAfterTenYearsNetCarryingAmount	449122000
CY2018Q2	us-gaap	Held To Maturity Securities Debt Maturities Within One Year Net Carrying Amount HeldToMaturitySecuritiesDebtMaturitiesWithinOneYearNetCarryingAmount	0
CY2018Q2	us-gaap	Interest Payable Current And Noncurrent InterestPayableCurrentAndNoncurrent	1175000
CY2018Q2	us-gaap	Interest Bearing Domestic Deposit Demand InterestBearingDomesticDepositDemand	1006331000
CY2018Q2	us-gaap	Interest Bearing Deposit Liabilities InterestBearingDepositLiabilities	2707388000
CY2018Q2	us-gaap	Junior Subordinated Notes JuniorSubordinatedNotes	56950000
CY2018Q2	us-gaap	Loans And Leases Receivable Deferred Income LoansAndLeasesReceivableDeferredIncome	9756000
CY2018Q2	us-gaap	Loans And Leases Receivable Net Reported Amount LoansAndLeasesReceivableNetReportedAmount	3116789000
CY2018Q2	us-gaap	Land And Land Improvements LandAndLandImprovements	9973000
CY2018Q2	us-gaap	Liabilities Liabilities	4350809000
CY2018Q2	us-gaap	Property Plant And Equipment Gross PropertyPlantAndEquipmentGross	99210000
CY2018Q2	us-gaap	Loans And Leases Receivable Before Fees Gross LoansAndLeasesReceivableBeforeFeesGross	3169675000
CY2018Q2	us-gaap	Loans Receivable Held For Sale Net Not Part Of Disposal Group LoansReceivableHeldForSaleNetNotPartOfDisposalGroup	3601000
CY2018Q2	us-gaap	Loans And Leases Receivable Gross Carrying Amount LoansAndLeasesReceivableGrossCarryingAmount	3146313000
CY2018Q2	us-gaap	Loans And Leases Receivable Allowance LoansAndLeasesReceivableAllowance	29524000
CY2018Q2	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	276877000
CY2018Q2	us-gaap	Restricted Cash And Cash Equivalents RestrictedCashAndCashEquivalents	85078000
CY2018Q2	us-gaap	Restricted Investments RestrictedInvestments	16956000
CY2018Q2	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Vested And Expected To Vest Exercisable Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestExercisableNumber	3000	shares
CY2018Q2	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Equity Instruments Other Than Options Aggregate Intrinsic Value Outstanding SharebasedCompensationArrangementBySharebasedPaymentAwardEquityInstrumentsOtherThanOptionsAggregateIntrinsicValueOutstanding	0
CY2018Q2	us-gaap	Securities Sold Under Agreements To Repurchase SecuritiesSoldUnderAgreementsToRepurchase	0
CY2018Q2	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber	428900	shares
CY2018Q2	us-gaap	Other Assets OtherAssets	57409000
CY2018Q2	us-gaap	Other Liabilities OtherLiabilities	58896000
CY2018Q2	us-gaap	Noninterest Bearing Deposit Liabilities NoninterestBearingDepositLiabilities	1369834000
CY2018Q2	us-gaap	Other Assets Miscellaneous OtherAssetsMiscellaneous	1718000
CY2018Q2	us-gaap	Other Borrowings OtherBorrowings	152839000
CY2018Q2	us-gaap	Preferred Stock Shares Outstanding PreferredStockSharesOutstanding	0	shares
CY2018Q2	us-gaap	Other Liabilities Noncurrent OtherLiabilitiesNoncurrent	3596000
CY2018Q2	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	59014000
CY2018Q2	us-gaap	Preferred Stock No Par Value PreferredStockNoParValue	0
CY2018Q2	us-gaap	Preferred Stock Shares Authorized PreferredStockSharesAuthorized	1000000	shares
CY2018Q2	us-gaap	Preferred Stock Value PreferredStockValue
CY2018Q2	us-gaap	Prepaid Taxes PrepaidTaxes	4097000
CY2018Q2	us-gaap	Preferred Stock Shares Issued PreferredStockSharesIssued	0	shares
CY2018Q2	us-gaap	Related Party Deposit Liabilities RelatedPartyDepositLiabilities	28910000
CY2018Q2	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice	16.85
CY2018Q2	us-gaap	Tier One Risk Based Capital Required To Be Well Capitalized To Risk Weighted Assets TierOneRiskBasedCapitalRequiredToBeWellCapitalizedToRiskWeightedAssets	0.0800	pure
CY2018Q2	us-gaap	Time Deposits100000 Or More TimeDeposits100000OrMore	84015000
CY2018Q2	us-gaap	Unamortized Loan Commitment And Origination Fees And Unamortized Discounts Or Premiums UnamortizedLoanCommitmentAndOriginationFeesAndUnamortizedDiscountsOrPremiums	-13606000
CY2018Q2	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue	8837000
CY2018Q2	us-gaap	Stockholders Equity StockholdersEquity	512344000
CY2018Q2	us-gaap	Taxes Payable Current And Noncurrent TaxesPayableCurrentAndNoncurrent	1267000
CY2018Q2	us-gaap	Us Government Agencies Securities At Carrying Value USGovernmentAgenciesSecuritiesAtCarryingValue	1120497000
CY2018Q2	us-gaap	Tier One Leverage Capital Required To Be Well Capitalized To Average Assets TierOneLeverageCapitalRequiredToBeWellCapitalizedToAverageAssets	0.0500	pure
CY2018Q2	tcbk	Collateralized Line Of Credit With Federal Reserve Bank Maximum Borrowing Capacity CollateralizedLineOfCreditWithFederalReserveBankMaximumBorrowingCapacity	141993000
CY2018Q2	tcbk	Furniture And Equipment FurnitureAndEquipment	38172000
CY2018Q2	tcbk	Cash At Federal Reserve And Other Banks CashAtFederalReserveAndOtherBanks	89401000
CY2018Q2	tcbk	Investment Securities Designated As Potential Collateral Under Collateral Line Of Credit With Frb InvestmentSecuritiesDesignatedAsPotentialCollateralUnderCollateralLineOfCreditWithFrb	14000
CY2018Q2	tcbk	Securities Sold Under Agreements To Collateralized SecuritiesSoldUnderAgreementsToCollateralized	39957000
CY2018Q2	tcbk	Collateralized Line Of Credit With Federal Reserve Bank Outstanding Balance CollateralizedLineOfCreditWithFederalReserveBankOutstandingBalance	0
CY2018Q2	tcbk	Loans Designated As Potential Collateral Under Collateralized Line Of Credit With Fhlb LoansDesignatedAsPotentialCollateralUnderCollateralizedLineOfCreditWithFhlb	198309000
CY2018Q2	tcbk	Investment In Low Income Housing Tax Credit Funds InvestmentInLowIncomeHousingTaxCreditFunds	16672000
CY2018Q2	tcbk	Loan Escrow And Servicing Payable LoanEscrowAndServicingPayable	2295000
CY2018Q2	tcbk	Fhlb Collateral Line Of Credit Remaining Borrowing Capacity FhlbCollateralLineOfCreditRemainingBorrowingCapacity	1486635000
CY2018Q2	tcbk	Low Income Housing Tax Credit Fund Commitments LowIncomeHousingTaxCreditFundCommitments	5969000
CY2018Q2	tcbk	Loans Designated As Potential Collateral Under Collateral Line Of Credit With Frb LoansDesignatedAsPotentialCollateralUnderCollateralLineOfCreditWithFrb	267570000
CY2018Q2	tcbk	Joint Beneficiary Agreements JointBeneficiaryAgreements	3494000
CY2018Q2	tcbk	Other Time Certificates Deposits OtherTimeCertificatesDeposits	231774000
CY2018Q2	tcbk	Core Deposit Intangible CoreDepositIntangible	4496000
CY2018Q2	tcbk	Reserve For Unfunded Commitments ReserveForUnfundedCommitments	3727000
CY2018Q2	tcbk	Premises Premises	51065000
CY2018Q2	tcbk	Property Plant And Equipment Less Depreciation Gross PropertyPlantAndEquipmentLessDepreciationGross	57144000
CY2018Q2	tcbk	Collateralized Line Of Credit With Federal Reserve Bank Remaining Borrowing Capacity CollateralizedLineOfCreditWithFederalReserveBankRemainingBorrowingCapacity	141993000
CY2018Q2	tcbk	Mortgage Servicing Rights MortgageServicingRights	7021000
CY2018Q2	tcbk	Investment Securities Designated As Potential Collateral Under Collateral Line Of Credit With Fhlb InvestmentSecuritiesDesignatedAsPotentialCollateralUnderCollateralLineOfCreditWithFhlb	2183416000
CY2018Q2	tcbk	Repurchased Shares Outstanding RepurchasedSharesOutstanding	166600	shares
CY2018Q2	tcbk	Number Of Life Insurance Policies Owned By Company NumberOfLifeInsurancePoliciesOwnedByCompany	182	Policies
CY2018Q2	tcbk	Number Of Loan Production Offices NumberOfLoanProductionOffices	2	Office
CY2018Q2	tcbk	Policies Covering Current And Former Employees And Directors PoliciesCoveringCurrentAndFormerEmployeesAndDirectors	57	Policies
CY2018Q2	tcbk	Common Equity Tier One Risk Based Capital Required To Be Well Capitalized To Risk Weighted Assets CommonEquityTierOneRiskBasedCapitalRequiredToBeWellCapitalizedToRiskWeightedAssets	0.0650	pure
CY2016Q4	us-gaap	Cash Surrender Value Of Life Insurance CashSurrenderValueOfLifeInsurance	95912000
CY2016Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	305612000
CY2016Q4	us-gaap	Certain Loans Acquired In Transfer Not Accounted For As Debt Securities Accretable Yield CertainLoansAcquiredInTransferNotAccountedForAsDebtSecuritiesAccretableYield	10348000
CY2016Q4	us-gaap	Foreclosed Assets ForeclosedAssets	3986000
CY2016Q4	us-gaap	Loans And Leases Receivable Allowance LoansAndLeasesReceivableAllowance	32503000
CY2017Q4	us-gaap	Equity Securities Fv Ni EquitySecuritiesFvNi	2938000
CY2016Q4	us-gaap	Stockholders Equity StockholdersEquity	477347000
CY2016Q4	tcbk	Fdic Indemnification Assets And Liabilities FdicIndemnificationAssetsAndLiabilities	-744000
CY2016Q4	tcbk	Reserve For Unfunded Commitments ReserveForUnfundedCommitments	2719000
CY2017Q4	us-gaap	Accrued Investment Income Receivable AccruedInvestmentIncomeReceivable	13772000
CY2017Q4	us-gaap	Accumulated Depreciation Depletion And Amortization Property Plant And Equipment AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment	40644000
CY2017Q4	us-gaap	Assets Held In Trust AssetsHeldInTrust	1706000
CY2017Q4	us-gaap	Accrued Employee Benefits Current And Noncurrent AccruedEmployeeBenefitsCurrentAndNoncurrent	6619000
CY2017Q4	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	-5228000
CY2017Q4	us-gaap	Asset Backed Securities At Carrying Value AssetBackedSecuritiesAtCarryingValue	285596000
CY2017Q4	us-gaap	Assets Assets	4761315000
CY2017Q4	us-gaap	Available For Sale Securities Accumulated Gross Unrealized Loss Before Tax AvailableForSaleSecuritiesAccumulatedGrossUnrealizedLossBeforeTax	5930000
CY2017Q4	us-gaap	Available For Sale Securities Continuous Unrealized Loss Position12 Months Or Longer Accumulated Loss AvailableForSaleSecuritiesContinuousUnrealizedLossPosition12MonthsOrLongerAccumulatedLoss	3719000
CY2017Q4	us-gaap	Available For Sale Securities Continuous Unrealized Loss Position Accumulated Loss AvailableForSaleSecuritiesContinuousUnrealizedLossPositionAccumulatedLoss	5930000
CY2017Q4	us-gaap	Available For Sale Securities Continuous Unrealized Loss Position Less Than Twelve Months Fair Value AvailableForSaleSecuritiesContinuousUnrealizedLossPositionLessThanTwelveMonthsFairValue	289271000
CY2017Q4	us-gaap	Available For Sale Securities Accumulated Gross Unrealized Gain Before Tax AvailableForSaleSecuritiesAccumulatedGrossUnrealizedGainBeforeTax	2583000
CY2017Q4	us-gaap	Available For Sale Securities Continuous Unrealized Loss Position Fair Value AvailableForSaleSecuritiesContinuousUnrealizedLossPositionFairValue	472694000
CY2017Q4	us-gaap	Capitalized Computer Software Net CapitalizedComputerSoftwareNet	1126000
CY2017Q4	us-gaap	Available For Sale Securities AvailableForSaleSecurities	727945000
CY2017Q4	us-gaap	Available For Sale Securities Continuous Unrealized Loss Position Twelve Months Or Longer Fair Value AvailableForSaleSecuritiesContinuousUnrealizedLossPositionTwelveMonthsOrLongerFairValue	183423000
CY2017Q4	us-gaap	Available For Sale Securities Amortized Cost AvailableForSaleSecuritiesAmortizedCost	731292000
CY2017Q4	us-gaap	Available For Sale Securities Continuous Unrealized Loss Position Less Than12 Months Accumulated Loss AvailableForSaleSecuritiesContinuousUnrealizedLossPositionLessThan12MonthsAccumulatedLoss	2211000
CY2017Q4	us-gaap	Cash And Due From Banks CashAndDueFromBanks	105968000
CY2017Q4	us-gaap	Cash Surrender Value Of Life Insurance CashSurrenderValueOfLifeInsurance	97783000
CY2017Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	205428000
CY2017Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	205428000
CY2017Q4	us-gaap	Certain Loans Acquired In Transfer Not Accounted For As Debt Securities Accretable Yield CertainLoansAcquiredInTransferNotAccountedForAsDebtSecuritiesAccretableYield	4262000
CY2017Q4	us-gaap	Commitments And Contingencies CommitmentsAndContingencies
CY2017Q4	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	50000000	shares
CY2017Q4	us-gaap	Common Stock Shares Outstanding CommonStockSharesOutstanding	22955963	shares
CY2017Q4	us-gaap	Capital Required To Be Well Capitalized To Risk Weighted Assets CapitalRequiredToBeWellCapitalizedToRiskWeightedAssets	0.1000	pure
CY2017Q4	us-gaap	Common Stock No Par Value CommonStockNoParValue	0
CY2017Q4	us-gaap	Common Stock Shares Issued CommonStockSharesIssued	22955963	shares
CY2017Q4	us-gaap	Common Stock Value CommonStockValue	255836000
CY2017Q4	us-gaap	Construction In Progress Gross ConstructionInProgressGross	2148000
CY2017Q4	us-gaap	Deferred Compensation Liability Current And Noncurrent DeferredCompensationLiabilityCurrentAndNoncurrent	6605000
CY2017Q4	us-gaap	Deferred Tax Assets Liabilities Net DeferredTaxAssetsLiabilitiesNet	21697000
CY2017Q4	us-gaap	Defined Benefit Pension Plan Current And Noncurrent Liabilities DefinedBenefitPensionPlanCurrentAndNoncurrentLiabilities	28472000
CY2017Q4	us-gaap	Deposit Liabilities Reclassified As Loans Receivable1 DepositLiabilitiesReclassifiedAsLoansReceivable1	1366000
CY2017Q4	us-gaap	Deposits Savings Deposits DepositsSavingsDeposits	1364518000
CY2017Q4	us-gaap	Deferred Revenue DeferredRevenue	1228000
CY2017Q4	us-gaap	Deposits Deposits	4009131000
CY2017Q4	us-gaap	Fair Value Liabilities Level2 To Level1 Transfers Amount FairValueLiabilitiesLevel2ToLevel1TransfersAmount	0
CY2017Q4	us-gaap	Financing Receivable Recorded Investment Nonaccrual Status FinancingReceivableRecordedInvestmentNonaccrualStatus	16925000
CY2017Q4	us-gaap	Fair Value Liabilities Level1 To Level2 Transfers Amount FairValueLiabilitiesLevel1ToLevel2TransfersAmount	0
CY2017Q4	us-gaap	Financing Receivable Allowance For Credit Losses Individually Evaluated For Impairment1 FinancingReceivableAllowanceForCreditLossesIndividuallyEvaluatedForImpairment1	2699000
CY2017Q4	us-gaap	Financing Receivable Collectively Evaluated For Impairment FinancingReceivableCollectivelyEvaluatedForImpairment	2971371000
CY2017Q4	us-gaap	Financing Receivable Individually Evaluated For Impairment FinancingReceivableIndividuallyEvaluatedForImpairment	28234000
CY2017Q4	us-gaap	Fair Value Assets Level1 To Level2 Transfers Amount FairValueAssetsLevel1ToLevel2TransfersAmount	0
CY2017Q4	us-gaap	Fair Value Assets Level2 To Level1 Transfers Amount FairValueAssetsLevel2ToLevel1TransfersAmount	0
CY2017Q4	us-gaap	Held To Maturity Securities HeldToMaturitySecurities	514844000
CY2017Q4	us-gaap	Held To Maturity Securities Continuous Unrealized Loss Position Fair Value HeldToMaturitySecuritiesContinuousUnrealizedLossPositionFairValue	192509000
CY2017Q4	us-gaap	Financing Receivable Allowance For Credit Losses Collectively Evaluated For Impairment FinancingReceivableAllowanceForCreditLossesCollectivelyEvaluatedForImpairment	27352000
CY2017Q4	us-gaap	Foreclosed Assets ForeclosedAssets	3226000
CY2017Q4	us-gaap	Goodwill Goodwill	64311000
CY2017Q4	us-gaap	Held To Maturity Securities Continuous Unrealized Loss Position Less Than12 Months Accumulated Loss HeldToMaturitySecuritiesContinuousUnrealizedLossPositionLessThan12MonthsAccumulatedLoss	574000
CY2017Q4	us-gaap	Income Tax Receivable IncomeTaxReceivable	4754000
CY2017Q4	us-gaap	Held To Maturity Securities Amortized Cost Before Other Than Temporary Impairment HeldToMaturitySecuritiesAmortizedCostBeforeOtherThanTemporaryImpairment	514844000
CY2017Q4	us-gaap	Held To Maturity Securities Continuous Unrealized Loss Position12 Months Or Longer Accumulated Loss HeldToMaturitySecuritiesContinuousUnrealizedLossPosition12MonthsOrLongerAccumulatedLoss	1352000
CY2017Q4	us-gaap	Held To Maturity Securities Continuous Unrealized Loss Position Accumulated Loss HeldToMaturitySecuritiesContinuousUnrealizedLossPositionAccumulatedLoss	1926000
CY2017Q4	us-gaap	Held To Maturity Securities Continuous Unrealized Loss Position Twelve Months Or Longer Fair Value HeldToMaturitySecuritiesContinuousUnrealizedLossPositionTwelveMonthsOrLongerFairValue	98004000
CY2017Q4	us-gaap	Held To Maturity Securities Fair Value HeldToMaturitySecuritiesFairValue	518165000
CY2017Q4	us-gaap	Held To Maturity Securities Accumulated Unrecognized Holding Gain HeldToMaturitySecuritiesAccumulatedUnrecognizedHoldingGain	5247000
CY2017Q4	us-gaap	Held To Maturity Securities Accumulated Unrecognized Holding Loss HeldToMaturitySecuritiesAccumulatedUnrecognizedHoldingLoss	1926000
CY2017Q4	us-gaap	Held To Maturity Securities Continuous Unrealized Loss Position Less Than Twelve Months Fair Value HeldToMaturitySecuritiesContinuousUnrealizedLossPositionLessThanTwelveMonthsFairValue	94505000
CY2017Q4	us-gaap	Interest Payable Current And Noncurrent InterestPayableCurrentAndNoncurrent	930000
CY2017Q4	us-gaap	Insurance Settlements Receivable InsuranceSettlementsReceivable	2242000
CY2017Q4	us-gaap	Interest Bearing Domestic Deposit Demand InterestBearingDomesticDepositDemand	971459000
CY2017Q4	us-gaap	Interest Bearing Deposit Liabilities InterestBearingDepositLiabilities	2640913000
CY2017Q4	us-gaap	Junior Subordinated Notes JuniorSubordinatedNotes	56858000
CY2017Q4	us-gaap	Loans And Leases Receivable Deferred Income LoansAndLeasesReceivableDeferredIncome	8651000
CY2017Q4	us-gaap	Loans And Leases Receivable Net Reported Amount LoansAndLeasesReceivableNetReportedAmount	2984842000
CY2017Q4	us-gaap	Land And Land Improvements LandAndLandImprovements	9959000
CY2017Q4	us-gaap	Liabilities Liabilities	4255507000
CY2017Q4	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	4761315000
CY2017Q4	us-gaap	Loans And Leases Receivable Before Fees Gross LoansAndLeasesReceivableBeforeFeesGross	3038472000
CY2017Q4	us-gaap	Loans Receivable Held For Sale Net Not Part Of Disposal Group LoansReceivableHeldForSaleNetNotPartOfDisposalGroup	4616000
CY2017Q4	us-gaap	Litigation Reserve LitigationReserve	1450000
CY2017Q4	us-gaap	Loans And Leases Receivable Gross Carrying Amount LoansAndLeasesReceivableGrossCarryingAmount	3015165000
CY2017Q4	us-gaap	Loans And Leases Receivable Allowance LoansAndLeasesReceivableAllowance	30323000
CY2017Q4	us-gaap	Other Assets OtherAssets	55051000
CY2017Q4	us-gaap	Other Liabilities OtherLiabilities	63258000
CY2017Q4	us-gaap	Noninterest Bearing Deposit Liabilities NoninterestBearingDepositLiabilities	1368218000
CY2017Q4	us-gaap	Operating Leases Future Minimum Payments Receivable Current OperatingLeasesFutureMinimumPaymentsReceivableCurrent	3278000
CY2017Q4	us-gaap	Operating Leases Future Minimum Payments Receivable In Four Years OperatingLeasesFutureMinimumPaymentsReceivableInFourYears	1488000
CY2017Q4	us-gaap	Operating Leases Future Minimum Payments Receivable In Three Years OperatingLeasesFutureMinimumPaymentsReceivableInThreeYears	1847000
CY2017Q4	us-gaap	Operating Leases Future Minimum Payments Receivable Thereafter OperatingLeasesFutureMinimumPaymentsReceivableThereafter	798000
CY2017Q4	us-gaap	Other Assets Miscellaneous OtherAssetsMiscellaneous	2561000
CY2017Q4	us-gaap	Other Borrowings OtherBorrowings	122166000
CY2017Q4	us-gaap	Operating Leases Future Minimum Payments Receivable OperatingLeasesFutureMinimumPaymentsReceivable	10667000
CY2017Q4	us-gaap	Operating Leases Future Minimum Payments Receivable In Five Years OperatingLeasesFutureMinimumPaymentsReceivableInFiveYears	757000
CY2017Q4	us-gaap	Operating Leases Future Minimum Payments Receivable In Two Years OperatingLeasesFutureMinimumPaymentsReceivableInTwoYears	2499000
CY2017Q4	us-gaap	Preferred Stock Shares Outstanding PreferredStockSharesOutstanding	0	shares
CY2017Q4	us-gaap	Other Liabilities Noncurrent OtherLiabilitiesNoncurrent	5007000
CY2017Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	57742000
CY2017Q4	us-gaap	Preferred Stock No Par Value PreferredStockNoParValue	0
CY2017Q4	us-gaap	Preferred Stock Shares Authorized PreferredStockSharesAuthorized	1000000	shares
CY2017Q4	us-gaap	Preferred Stock Value PreferredStockValue
CY2017Q4	us-gaap	Prepaid Taxes PrepaidTaxes	4111000
CY2017Q4	us-gaap	Preferred Stock Shares Issued PreferredStockSharesIssued	0	shares
CY2017Q4	us-gaap	Related Party Deposit Liabilities RelatedPartyDepositLiabilities	46025000
CY2017Q4	us-gaap	Property Plant And Equipment Gross PropertyPlantAndEquipmentGross	96238000
CY2017Q4	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	255200000
CY2017Q4	us-gaap	Restricted Cash And Cash Equivalents RestrictedCashAndCashEquivalents	82068000
CY2017Q4	us-gaap	Restricted Investments RestrictedInvestments	16956000
CY2017Q4	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Equity Instruments Other Than Options Aggregate Intrinsic Value Outstanding SharebasedCompensationArrangementBySharebasedPaymentAwardEquityInstrumentsOtherThanOptionsAggregateIntrinsicValueOutstanding	0
CY2017Q4	us-gaap	Securities Sold Under Agreements To Repurchase SecuritiesSoldUnderAgreementsToRepurchase	0
CY2017Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber	446400	shares
CY2017Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice	16.84
CY2017Q4	us-gaap	Tier One Risk Based Capital Required To Be Well Capitalized To Risk Weighted Assets TierOneRiskBasedCapitalRequiredToBeWellCapitalizedToRiskWeightedAssets	0.0800	pure
CY2017Q4	us-gaap	Time Deposits100000 Or More TimeDeposits100000OrMore	73596000
CY2017Q4	us-gaap	Unamortized Loan Commitment And Origination Fees And Unamortized Discounts Or Premiums UnamortizedLoanCommitmentAndOriginationFeesAndUnamortizedDiscountsOrPremiums	-14656000
CY2017Q4	us-gaap	Stockholders Equity StockholdersEquity	505808000
CY2017Q4	us-gaap	Tier One Leverage Capital Required To Be Well Capitalized To Average Assets TierOneLeverageCapitalRequiredToBeWellCapitalizedToAverageAssets	0.0500	pure
CY2017Q4	tcbk	Furniture And Equipment FurnitureAndEquipment	35939000
CY2017Q4	tcbk	Cash At Federal Reserve And Other Banks CashAtFederalReserveAndOtherBanks	99460000
CY2017Q4	tcbk	Investment In Low Income Housing Tax Credit Funds InvestmentInLowIncomeHousingTaxCreditFunds	16854000
CY2017Q4	tcbk	Loan Escrow And Servicing Payable LoanEscrowAndServicingPayable	1958000
CY2017Q4	tcbk	Low Income Housing Tax Credit Fund Commitments LowIncomeHousingTaxCreditFundCommitments	8554000
CY2017Q4	tcbk	Joint Beneficiary Agreements JointBeneficiaryAgreements	3365000
CY2017Q4	tcbk	Other Time Certificates Deposits OtherTimeCertificatesDeposits	231340000
CY2017Q4	tcbk	Core Deposit Intangible CoreDepositIntangible	5174000
CY2017Q4	tcbk	Reserve For Unfunded Commitments ReserveForUnfundedCommitments	3164000
CY2017Q4	tcbk	Premises Premises	50340000
CY2017Q4	tcbk	Property Plant And Equipment Less Depreciation Gross PropertyPlantAndEquipmentLessDepreciationGross	55594000
CY2017Q4	tcbk	Mortgage Servicing Rights MortgageServicingRights	6687000
CY2017Q4	tcbk	Common Equity Tier One Risk Based Capital Required To Be Well Capitalized To Risk Weighted Assets CommonEquityTierOneRiskBasedCapitalRequiredToBeWellCapitalizedToRiskWeightedAssets	0.0650	pure
CY2017Q2	tcbk	Gain On Termination Of Fdic Loss Share Agreement GainOnTerminationOfFDICLossShareAgreement	712000
CY2017Q2	tcbk	Federal Deposit Insurance Corporation Indemnification Asset Cash Received Payments Made FederalDepositInsuranceCorporationIndemnificationAssetCashReceivedPaymentsMade	184000
	us-gaap	Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	0	shares
	us-gaap	Advertising Expense AdvertisingExpense	2134000
	us-gaap	Allowance For Loan And Lease Losses Adjustments Net AllowanceForLoanAndLeaseLossesAdjustmentsNet	-2353000
	us-gaap	Adjustments To Additional Paid In Capital Share Based Compensation Stock Options Requisite Service Period Recognition AdjustmentsToAdditionalPaidInCapitalShareBasedCompensationStockOptionsRequisiteServicePeriodRecognition	162000
	us-gaap	Allowance For Loan And Lease Losses Write Offs AllowanceForLoanAndLeaseLossesWriteOffs	2921000
	us-gaap	Accretion Amortization Of Discounts And Premiums Investments AccretionAmortizationOfDiscountsAndPremiumsInvestments	-1606000
	us-gaap	Adjustments To Additional Paid In Capital Share Based Compensation Restricted Stock Units Requisite Service Period Recognition AdjustmentsToAdditionalPaidInCapitalShareBasedCompensationRestrictedStockUnitsRequisiteServicePeriodRecognition	419000
	us-gaap	Allowance For Loan And Lease Loss Recovery Of Bad Debts AllowanceForLoanAndLeaseLossRecoveryOfBadDebts	914000
	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	711000
	us-gaap	Bank Owned Life Insurance Income BankOwnedLifeInsuranceIncome	1311000
	us-gaap	Brokerage Commissions Revenue BrokerageCommissionsRevenue	367000
	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Excluding Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseExcludingExchangeRateEffect	-137963000
	us-gaap	Certain Loans Acquired In Transfer Not Accounted For As Debt Securities Accretable Yield Reclassifications To From Nonaccretable Difference CertainLoansAcquiredInTransferNotAccountedForAsDebtSecuritiesAccretableYieldReclassificationsToFromNonaccretableDifference	-432000
	us-gaap	Communication Communication	1311000
	us-gaap	Certain Loans Acquired In Transfer Not Accounted For As Debt Securities Accretable Yield Accretion CertainLoansAcquiredInTransferNotAccountedForAsDebtSecuritiesAccretableYieldAccretion	1960000
	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	29080000
	us-gaap	Contractually Specified Servicing Fees Late Fees And Ancillary Fees Earned In Exchange For Servicing Financial Assets ContractuallySpecifiedServicingFeesLateFeesAndAncillaryFeesEarnedInExchangeForServicingFinancialAssets	1047000
	us-gaap	Defined Benefit Plan Amortization Of Transition Asset Obligation DefinedBenefitPlanAmortizationOfTransitionAssetObligation	-1000
	us-gaap	Defined Benefit Plan Interest Cost DefinedBenefitPlanInterestCost	496000
	us-gaap	Defined Benefit Plan Amortization Of Gains Losses DefinedBenefitPlanAmortizationOfGainsLosses	-195000
	us-gaap	Defined Benefit Plan Service Cost DefinedBenefitPlanServiceCost	470000
	us-gaap	Depreciation Amortization And Accretion Net DepreciationAmortizationAndAccretionNet	3287000
	us-gaap	Depreciation Nonproduction DepreciationNonproduction	2705000
	us-gaap	Defined Benefit Plan Amortization Of Prior Service Cost Credit DefinedBenefitPlanAmortizationOfPriorServiceCostCredit	-6000
	us-gaap	Defined Benefit Plan Benefit Obligation Benefits Paid DefinedBenefitPlanBenefitObligationBenefitsPaid	588000
	us-gaap	Defined Benefit Plan Net Periodic Benefit Cost DefinedBenefitPlanNetPeriodicBenefitCost	1156000
	us-gaap	Dividends Common Stock Cash DividendsCommonStockCash	7328000
	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.369	pure
	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	1.10
	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.350	pure
	us-gaap	Effective Income Tax Rate Reconciliation Nondeductible Expense Share Based Compensation Cost EffectiveIncomeTaxRateReconciliationNondeductibleExpenseShareBasedCompensationCost	-0.013	pure
	us-gaap	Effective Income Tax Rate Reconciliation State And Local Income Taxes EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes	0.067	pure
	us-gaap	Equipment Expense EquipmentExpense	3528000
	us-gaap	Effective Income Tax Rate Reconciliation Tax Exempt Income EffectiveIncomeTaxRateReconciliationTaxExemptIncome	0.018	pure
	us-gaap	Employee Stock Ownership Plan Esop Compensation Expense EmployeeStockOwnershipPlanESOPCompensationExpense	1065000
	us-gaap	Dividend Income Operating DividendIncomeOperating	719000
	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	1.12
	us-gaap	Effective Income Tax Rate Reconciliation Nondeductible Expense Life Insurance EffectiveIncomeTaxRateReconciliationNondeductibleExpenseLifeInsurance	0.012	pure
	us-gaap	Effective Income Tax Rate Reconciliation Other Adjustments EffectiveIncomeTaxRateReconciliationOtherAdjustments	0.002	pure
	us-gaap	Effective Income Tax Rate Reconciliation Tax Credits EffectiveIncomeTaxRateReconciliationTaxCredits	0.007	pure
	us-gaap	Employee Stock Ownership Plan Esop Cash Contributions To Esop EmployeeStockOwnershipPlanESOPCashContributionsToESOP	1536000
	us-gaap	Fdic Indemnification Asset Period Increase Decrease FDICIndemnificationAssetPeriodIncreaseDecrease	-224000
	us-gaap	Financing Receivable Modifications Subsequent Default Number Of Contracts1 FinancingReceivableModificationsSubsequentDefaultNumberOfContracts1	1
	us-gaap	Financing Receivable Modifications Subsequent Default Recorded Investment1 FinancingReceivableModificationsSubsequentDefaultRecordedInvestment1	124000
	us-gaap	Financing Receivable Modifications Post Modification Recorded Investment2 FinancingReceivableModificationsPostModificationRecordedInvestment2	1436000
	us-gaap	Gain Loss On Disposition Of Assets GainLossOnDispositionOfAssets	-28000
	us-gaap	Gain Loss On Sale Of Properties GainLossOnSaleOfProperties	3000
	us-gaap	Financing Receivable Modifications Pre Modification Recorded Investment2 FinancingReceivableModificationsPreModificationRecordedInvestment2	1569000
	us-gaap	Gain Loss On Sales Of Loans Net GainLossOnSalesOfLoansNet	1687000
	us-gaap	Financing Receivable Modifications Number Of Contracts2 FinancingReceivableModificationsNumberOfContracts2	10
	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	40667000
	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	14999000
	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	10650000
	us-gaap	Increase Decrease In Accrued Interest Receivable Net IncreaseDecreaseInAccruedInterestReceivableNet	-422000
	us-gaap	Increase Decrease In Deposits IncreaseDecreaseInDeposits	-17138000
	us-gaap	Interest Expense InterestExpense	3101000
	us-gaap	Interest Income Federal Funds Sold And Securities Purchased Under Agreements To Resell InterestIncomeFederalFundsSoldAndSecuritiesPurchasedUnderAgreementsToResell	788000
	us-gaap	Interest Income Securities Taxable InterestIncomeSecuritiesTaxable	13606000
	us-gaap	Interest Income Securities Tax Exempt InterestIncomeSecuritiesTaxExempt	2083000
	us-gaap	Interest And Dividend Income Operating InterestAndDividendIncomeOperating	88528000
	us-gaap	Interest Expense Deposits InterestExpenseDeposits	1868000
	us-gaap	Interest Expense Other Long Term Debt InterestExpenseOtherLongTermDebt	15000
	us-gaap	Interest Income Expense After Provision For Loan Loss InterestIncomeExpenseAfterProvisionForLoanLoss	87780000
	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	85427000
	us-gaap	Insured Event Gain Loss InsuredEventGainLoss	108000
	us-gaap	Interest Expense Junior Subordinated Debentures InterestExpenseJuniorSubordinatedDebentures	1218000
	us-gaap	Increase Decrease In Interest Payable Net IncreaseDecreaseInInterestPayableNet	-37000
	us-gaap	Increase Decrease In Other Operating Liabilities IncreaseDecreaseInOtherOperatingLiabilities	-1225000
	us-gaap	Incremental Common Shares Attributable To Share Based Payment Arrangements IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	351000	shares
	us-gaap	Information Technology And Data Processing InformationTechnologyAndDataProcessing	4837000
	us-gaap	Interest And Fee Income Loans And Leases InterestAndFeeIncomeLoansAndLeases	71332000
	us-gaap	Interest Paid Net InterestPaidNet	3138000
	us-gaap	Labor And Related Expense LaborAndRelatedExpense	41387000
	us-gaap	Lease And Rental Expense LeaseAndRentalExpense	2095000
	us-gaap	Noninterest Expense NoninterestExpense	71726000
	us-gaap	Noninterest Income NoninterestIncome	24613000
	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-145191000
	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-20328000
	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	27556000
	us-gaap	Net Income Loss NetIncomeLoss	25668000
	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	3412000
	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	3412000
	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Adjustment Before Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentBeforeTax	-188000
	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Adjustment Net Of Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax	-109000
	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci Pension And Other Postretirement Benefit Plans Before Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansBeforeTax	188000
	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci Pension And Other Postretirement Benefit Plans For Net Gain Loss Before Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetGainLossBeforeTax	-192000
	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	-4000
	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Adjustment Net Of Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax	3303000
	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Adjustment Before Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentBeforeTax	5698000
	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansTax	-79000
	us-gaap	Noninterest Income Other NoninterestIncomeOther	6227000
	us-gaap	Noninterest Income Other Operating Income NoninterestIncomeOtherOperatingIncome	1917000
	us-gaap	Occupancy Net OccupancyNet	5397000
	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesTax	2395000
	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Before Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodBeforeTax	5698000
	us-gaap	Other Real Estate Disposals OtherRealEstateDisposals	1153000
	us-gaap	Payments For Origination Of Mortgage Loans Held For Sale PaymentsForOriginationOfMortgageLoansHeldForSale	63022000
	us-gaap	Payments Of Dividends Common Stock PaymentsOfDividendsCommonStock	7328000
	us-gaap	Payments To Acquire Available For Sale Securities PaymentsToAcquireAvailableForSaleSecurities	145584000
	us-gaap	Other Real Estate Valuation Adjustments OtherRealEstateValuationAdjustments	28000
	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	1122000
	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	5885000
	us-gaap	Other Labor Related Expenses OtherLaborRelatedExpenses	9969000
	us-gaap	Other Noninterest Expense OtherNoninterestExpense	30339000
	us-gaap	Pension Contributions PensionContributions	588000
	us-gaap	Proceeds From Life Insurance Policies ProceedsFromLifeInsurancePolicies	649000
	us-gaap	Proceeds From Maturities Prepayments And Calls Of Available For Sale Securities ProceedsFromMaturitiesPrepaymentsAndCallsOfAvailableForSaleSecurities	27997000
	us-gaap	Proceeds From Maturities Prepayments And Calls Of Held To Maturity Securities ProceedsFromMaturitiesPrepaymentsAndCallsOfHeldToMaturitySecurities	42361000
	us-gaap	Proceeds From Sale Of Foreclosed Assets ProceedsFromSaleOfForeclosedAssets	1424000
	us-gaap	Proceeds From Sale Of Other Real Estate ProceedsFromSaleOfOtherRealEstate	1424000
	us-gaap	Proceeds From Stock Options Exercised ProceedsFromStockOptionsExercised	193000
	us-gaap	Postage Expense PostageExpense	733000
	us-gaap	Proceeds From Sale Of Property Held For Sale ProceedsFromSaleOfPropertyHeldForSale	3338000
	us-gaap	Professional Fees ProfessionalFees	1456000
	us-gaap	Rental Income Nonoperating RentalIncomeNonoperating	23000
	us-gaap	Proceeds From Repayments Of Short Term Debt ProceedsFromRepaymentsOfShortTermDebt	5067000
	us-gaap	Proceeds From Sale Of Mortgage Loans Held For Sale ProceedsFromSaleOfMortgageLoansHeldForSale	64699000
	us-gaap	Profit Loss ProfitLoss	25668000
	us-gaap	Share Based Compensation ShareBasedCompensation	774000
	us-gaap	Stock Issued During Period Value Stock Options Exercised StockIssuedDuringPeriodValueStockOptionsExercised	2163000
	us-gaap	Stock Repurchased During Period Value StockRepurchasedDuringPeriodValue	3092000
	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	23236000	shares
	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	22885000	shares
	tcbk	Loss Gain On Sale Of Foreclosed Assets LossGainOnSaleOfForeclosedAssets	271000
	tcbk	Change In Market Value Of Mortgage Servicing Rights ChangeInMarketValueOfMortgageServicingRights	470000
	tcbk	Ending Valuation Allowance EndingValuationAllowance	179000
	tcbk	Other Comprehensive Income Loss Joint Beneficiary Agreement Liability Adjustments Net Of Tax OtherComprehensiveIncomeLossJointBeneficiaryAgreementLiabilityAdjustmentsNetOfTax	0
	tcbk	Payment For Loan And Lease Originations And Principal Collections PaymentForLoanAndLeaseOriginationsAndPrincipalCollections	69491000
	tcbk	Operating Interest Income Other OperatingInterestIncomeOther	511000
	tcbk	Other Comprehensive Income Loss Joint Beneficiary Agreement Liability Adjustments Before Reclassification And Tax OtherComprehensiveIncomeLossJointBeneficiaryAgreementLiabilityAdjustmentsBeforeReclassificationAndTax	0
	tcbk	Gain On Termination Of Fdic Loss Share Agreement GainOnTerminationOfFDICLossShareAgreement	-712000
	tcbk	Other Comprehensive Income Loss Joint Beneficiary Agreement Liability Adjustments Before Tax OtherComprehensiveIncomeLossJointBeneficiaryAgreementLiabilityAdjustmentsBeforeTax	0
	tcbk	Federal Deposit Insurance Corporation Indemnification Asset Cash Received Payments Made FederalDepositInsuranceCorporationIndemnificationAssetCashReceivedPaymentsMade	-256000
	tcbk	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Joint Beneficiary Agreement Liability Before Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAociForJointBeneficiaryAgreementLiabilityBeforeTax	0
	tcbk	Life Insurance Benefit In Excess Of Cash Value LifeInsuranceBenefitInExcessOfCashValue	108000
	tcbk	End Of Period Death Benefit EndOfPeriodDeathBenefit	166318000
	tcbk	Assessments Assessments	825000
	tcbk	Sale Of Customer Checks SaleOfCustomerChecks	198000
	tcbk	Loans Transferred To Foreclosed Assets LoansTransferredToForeclosedAssets	684000
	tcbk	Network Charges NetworkCharges	1928000
	tcbk	Unrealized Gain Loss On Securities Available For Sale UnrealizedGainLossOnSecuritiesAvailableForSale	5698000
	tcbk	Other Operating Expenses OtherOperatingExpenses	6113000
	tcbk	Restricted Stock Units Released RestrictedStockUnitsReleased	0
	tcbk	Provision For Benefit From Losses On Foreclosed Assets ProvisionForBenefitFromLossesOnForeclosedAssets	28000
	tcbk	Insurance Proceeds Receivable Reclassified To Other Assets InsuranceProceedsReceivableReclassifiedToOtherAssets	921000
	tcbk	Additions Reductions Transfers From Loans Related To Foreclosed Assets AdditionsReductionsTransfersFromLoansRelatedToForeclosedAssets	684000
	tcbk	Courier Service CourierService	517000
	tcbk	Available For Sale Securities Sold At Carrying Value AvailableForSaleSecuritiesSoldAtCarryingValue	0
	tcbk	Financial Impact Due To Troubled Debt Restructure Additional Provision FinancialImpactDueToTroubledDebtRestructureAdditionalProvision	-77000
	tcbk	Provision For Benefit From Loan Losses Expensed ProvisionForBenefitFromLoanLossesExpensed	-2353000
	tcbk	Incentive Compensation Expense IncentiveCompensationExpense	4371000
	tcbk	Deferred Compensation Arrangements Non Interest Expense DeferredCompensationArrangementsNonInterestExpense	254000
	tcbk	Commissions On Sale Of Non Deposit Investment Products CommissionsOnSaleOfNonDepositInvestmentProducts	1312000
	tcbk	Base Salaries Net Of Deferred Loan Origination Costs BaseSalariesNetOfDeferredLoanOriginationCosts	27047000
	tcbk	Other Comprehensive Income Loss Changes In Joint Beneficiary Agreement Liability Tax OtherComprehensiveIncomeLossChangesInJointBeneficiaryAgreementLiabilityTax	0
	tcbk	Operational Losses OperationalLosses	865000
	tcbk	Foreclosed Assets Expense ForeclosedAssetsExpense	76000
	tcbk	Provision For Reversal Of Losses Unfunded Commitments ProvisionForReversalOfLossesUnfundedCommitments	120000
	tcbk	Market Value Of Shares Tendered By Employees In Lieu Of Cash To Pay For Exercise Of Options And Or Related Taxes MarketValueOfSharesTenderedByEmployeesInLieuOfCashToPayForExerciseOfOptionsAndOrRelatedTaxes	3092000
	tcbk	Change In Indemnification Asset ChangeInIndemnificationAsset	490000
	tcbk	Number Of Policies Owned NumberOfPoliciesOwned	183	Policies
	tcbk	Insurance Companies Used InsuranceCompaniesUsed	14	Company
	tcbk	Ending Number Of Foreclosed Assets EndingNumberOfForeclosedAssets	12	Assets
	tcbk	Current And Former Employees And Directors Covered CurrentAndFormerEmployeesAndDirectorsCovered	57	Employees
	tcbk	Adjustments To Additional Paid In Capital Share Based Compensation Market Plus Service Restricted Stock Units Requisite Service Period Recognition AdjustmentsToAdditionalPaidInCapitalShareBasedCompensationMarketPlusServiceRestrictedStockUnitsRequisiteServicePeriodRecognition	193000
	us-gaap	Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	0	shares
	us-gaap	Advertising Expense AdvertisingExpense	1873000
	us-gaap	Allowance For Loan And Lease Losses Adjustments Net AllowanceForLoanAndLeaseLossesAdjustmentsNet	-874000
	dei	Amendment Flag AmendmentFlag	false
	us-gaap	Adjustments To Additional Paid In Capital Share Based Compensation Stock Options Requisite Service Period Recognition AdjustmentsToAdditionalPaidInCapitalShareBasedCompensationStockOptionsRequisiteServicePeriodRecognition	54000
	us-gaap	Allowance For Loan And Lease Losses Write Offs AllowanceForLoanAndLeaseLossesWriteOffs	798000
	us-gaap	Accretion Amortization Of Discounts And Premiums Investments AccretionAmortizationOfDiscountsAndPremiumsInvestments	-1340000
	us-gaap	Adjustments To Additional Paid In Capital Share Based Compensation Restricted Stock Units Requisite Service Period Recognition AdjustmentsToAdditionalPaidInCapitalShareBasedCompensationRestrictedStockUnitsRequisiteServicePeriodRecognition	471000
	us-gaap	Allowance For Loan And Lease Loss Recovery Of Bad Debts AllowanceForLoanAndLeaseLossRecoveryOfBadDebts	873000
	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	678000
	us-gaap	Bank Owned Life Insurance Income BankOwnedLifeInsuranceIncome	1264000
	us-gaap	Brokerage Commissions Revenue BrokerageCommissionsRevenue	328000
	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Excluding Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseExcludingExchangeRateEffect	-21366000
	dei	Document Fiscal Period Focus DocumentFiscalPeriodFocus	Q2
	dei	Document Fiscal Year Focus DocumentFiscalYearFocus	2018
	dei	Document Type DocumentType	10-Q
	us-gaap	Concentration Risk Credit Risk ConcentrationRiskCreditRisk	<div> <p style="MARGIN-BOTTOM: 0pt; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman; MARGIN-TOP: 18pt"> <b>Significant Group Concentration of Credit Risk</b></p> <p style="MARGIN-BOTTOM: 0pt; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman; MARGIN-TOP: 6pt"> The Company grants agribusiness, commercial, consumer, and residential loans to customers located throughout the northern San Joaquin Valley, the Sacramento Valley and northern mountain regions of 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.</p> </div>
	us-gaap	Certain Loans Acquired In Transfer Not Accounted For As Debt Securities Accretable Yield Reclassifications To From Nonaccretable Difference CertainLoansAcquiredInTransferNotAccountedForAsDebtSecuritiesAccretableYieldReclassificationsToFromNonaccretableDifference	250000
	us-gaap	Communication Communication	1382000
	us-gaap	Certain Loans Acquired In Transfer Not Accounted For As Debt Securities Accretable Yield Accretion CertainLoansAcquiredInTransferNotAccountedForAsDebtSecuritiesAccretableYieldAccretion	516000
	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	14075000
	us-gaap	Contractually Specified Servicing Fees Late Fees And Ancillary Fees Earned In Exchange For Servicing Financial Assets ContractuallySpecifiedServicingFeesLateFeesAndAncillaryFeesEarnedInExchangeForServicingFinancialAssets	1028000
	dei	Current Fiscal Year End Date CurrentFiscalYearEndDate	--12-31
	us-gaap	Defined Benefit Plan Amortization Of Transition Asset Obligation DefinedBenefitPlanAmortizationOfTransitionAssetObligation	-1000
	us-gaap	Defined Benefit Plan Interest Cost DefinedBenefitPlanInterestCost	475000
	us-gaap	Defined Benefit Plan Amortization Of Gains Losses DefinedBenefitPlanAmortizationOfGainsLosses	-254000
	us-gaap	Defined Benefit Plan Service Cost DefinedBenefitPlanServiceCost	486000
	us-gaap	Depreciation Amortization And Accretion Net DepreciationAmortizationAndAccretionNet	3229000
	us-gaap	Depreciation Nonproduction DepreciationNonproduction	2757000
	us-gaap	Defined Benefit Plan Amortization Of Prior Service Cost Credit DefinedBenefitPlanAmortizationOfPriorServiceCostCredit	-27000
	us-gaap	Defined Benefit Plan Benefit Obligation Benefits Paid DefinedBenefitPlanBenefitObligationBenefitsPaid	554000
	us-gaap	Defined Benefit Plan Net Periodic Benefit Cost DefinedBenefitPlanNetPeriodicBenefitCost	1189000
	us-gaap	Dividends Common Stock Cash DividendsCommonStockCash	7813000
	us-gaap	Goodwill Impairment Loss GoodwillImpairmentLoss	0
	us-gaap	Financing Receivable Modifications Number Of Contracts2 FinancingReceivableModificationsNumberOfContracts2	6
	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Forfeitures In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresInPeriod	3000	shares
	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.279	pure
	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	1.24
	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.21	pure
	us-gaap	Effective Income Tax Rate Reconciliation Nondeductible Expense Share Based Compensation Cost EffectiveIncomeTaxRateReconciliationNondeductibleExpenseShareBasedCompensationCost	-0.002	pure
	dei	Entity Central Index Key EntityCentralIndexKey	0000356171
	us-gaap	Effective Income Tax Rate Reconciliation State And Local Income Taxes EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes	0.089	pure
	us-gaap	Equipment Expense EquipmentExpense	3188000
	us-gaap	Effective Income Tax Rate Reconciliation Tax Exempt Income EffectiveIncomeTaxRateReconciliationTaxExemptIncome	0.011	pure
	us-gaap	Employee Stock Ownership Plan Esop Compensation Expense EmployeeStockOwnershipPlanESOPCompensationExpense	940000
	dei	Entity Registrant Name EntityRegistrantName	TRICO BANCSHARES /
	us-gaap	Dividend Income Operating DividendIncomeOperating	634000
	dei	Document Period End Date DocumentPeriodEndDate	2018-06-30
	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	1.26
	us-gaap	Effective Income Tax Rate Reconciliation Nondeductible Expense Life Insurance EffectiveIncomeTaxRateReconciliationNondeductibleExpenseLifeInsurance	0.007	pure
	us-gaap	Effective Income Tax Rate Reconciliation Other Adjustments EffectiveIncomeTaxRateReconciliationOtherAdjustments	0.005	pure
	us-gaap	Effective Income Tax Rate Reconciliation Tax Credits EffectiveIncomeTaxRateReconciliationTaxCredits	0.008	pure
	us-gaap	Employee Stock Ownership Plan Esop Cash Contributions To Esop EmployeeStockOwnershipPlanESOPCashContributionsToESOP	1479000
	dei	Entity Filer Category EntityFilerCategory	Large Accelerated Filer
	us-gaap	Financing Receivable Modifications Subsequent Default Number Of Contracts1 FinancingReceivableModificationsSubsequentDefaultNumberOfContracts1	5
	us-gaap	Financing Receivable Modifications Subsequent Default Recorded Investment1 FinancingReceivableModificationsSubsequentDefaultRecordedInvestment1	509000
	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Transfers Out Of Level3 FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetTransfersOutOfLevel3	0
	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	40161000
	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	11222000
	tcbk	Operating Interest Income Other OperatingInterestIncomeOther	807000
	us-gaap	Financing Receivable Modifications Post Modification Recorded Investment2 FinancingReceivableModificationsPostModificationRecordedInvestment2	1099000
	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Transfers Into Level3 FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetTransfersIntoLevel3	0
	us-gaap	Gain Loss On Disposition Of Assets GainLossOnDispositionOfAssets	-54000
	us-gaap	Financing Receivable Modifications Pre Modification Recorded Investment2 FinancingReceivableModificationsPreModificationRecordedInvestment2	1087000
	us-gaap	Gain Loss On Sales Of Loans Net GainLossOnSalesOfLoansNet	1292000
	us-gaap	Goodwill Acquired During Period GoodwillAcquiredDuringPeriod	0
	us-gaap	Interest Income Securities Tax Exempt InterestIncomeSecuritiesTaxExempt	2083000
	us-gaap	Interest And Dividend Income Operating InterestAndDividendIncomeOperating	95599000
	us-gaap	Interest Expense Deposits InterestExpenseDeposits	2330000
	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	633000
	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	4119000
	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	8525000
	us-gaap	Increase Decrease In Accrued Interest Receivable Net IncreaseDecreaseInAccruedInterestReceivableNet	481000
	us-gaap	Increase Decrease In Deposits IncreaseDecreaseInDeposits	68091000
	us-gaap	Interest Expense InterestExpense	4744000
	us-gaap	Interest Income Federal Funds Sold And Securities Purchased Under Agreements To Resell InterestIncomeFederalFundsSoldAndSecuritiesPurchasedUnderAgreementsToResell	769000
	us-gaap	Interest Income Securities Taxable InterestIncomeSecuritiesTaxable	14760000
	us-gaap	Interest Expense Other Long Term Debt InterestExpenseOtherLongTermDebt	928000
	us-gaap	Interest Income Expense After Provision For Loan Loss InterestIncomeExpenseAfterProvisionForLoanLoss	91729000
	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	90855000
	us-gaap	Interest Expense Junior Subordinated Debentures InterestExpenseJuniorSubordinatedDebentures	1486000
	us-gaap	Increase Decrease In Interest Payable Net IncreaseDecreaseInInterestPayableNet	245000
	us-gaap	Increase Decrease In Other Operating Liabilities IncreaseDecreaseInOtherOperatingLiabilities	-660000
	us-gaap	Incremental Common Shares Attributable To Share Based Payment Arrangements IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	310000	shares
	us-gaap	Information Technology And Data Processing InformationTechnologyAndDataProcessing	5193000
	us-gaap	Interest And Fee Income Loans And Leases InterestAndFeeIncomeLoansAndLeases	77353000
	us-gaap	Interest Paid Net InterestPaidNet	4499000
	us-gaap	Labor And Related Expense LaborAndRelatedExpense	43105000
	us-gaap	Lease And Rental Expense LeaseAndRentalExpense	1869000
	us-gaap	Marketable Securities Gain Loss MarketableSecuritiesGainLoss	-70000
	us-gaap	Noninterest Expense NoninterestExpense	76032000
	us-gaap	Noninterest Income NoninterestIncome	24464000
	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-144813000
	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	90503000
	us-gaap	Noncash Merger Related Costs NoncashMergerRelatedCosts	1077000
	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	32944000
	us-gaap	Net Income Loss NetIncomeLoss	28939000
	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	-14864000
	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	-14864000
	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Adjustment Before Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentBeforeTax	-227000
	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Adjustment Net Of Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax	-160000
	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci Pension And Other Postretirement Benefit Plans Before Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansBeforeTax	-441000
	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci Pension And Other Postretirement Benefit Plans For Net Gain Loss Before Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetGainLossBeforeTax	-254000
	us-gaap	Other Labor Related Expenses OtherLaborRelatedExpenses	10103000
	us-gaap	Other Than Temporary Impairment Losses Investments Availableforsale Securities OtherThanTemporaryImpairmentLossesInvestmentsAvailableforsaleSecurities	0
	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	-27000
	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Adjustment Net Of Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax	-15024000
	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Adjustment Before Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentBeforeTax	-21304000
	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Adjustment Before Reclassification Adjustments And Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentBeforeReclassificationAdjustmentsAndTax	-668000
	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansTax	-67000
	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Before Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesBeforeTax	363000
	us-gaap	Noninterest Income Other NoninterestIncomeOther	5880000
	us-gaap	Noninterest Income Other Operating Income NoninterestIncomeOtherOperatingIncome	1638000
	us-gaap	Number Of Operating Segments NumberOfOperatingSegments	1	Segment
	us-gaap	Occupancy Net OccupancyNet	5401000
	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesTax	-6280000
	us-gaap	Prior Period Reclassification Adjustment Description PriorPeriodReclassificationAdjustmentDescription	<div> <p style="MARGIN-BOTTOM: 0pt; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman; MARGIN-TOP: 18pt"> <b>Reclassifications</b></p> <p style="MARGIN-BOTTOM: 0pt; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman; MARGIN-TOP: 6pt"> During the three months ended September 30, 2017, the Company changed its classification of 1st lien and 2nd lien <font style="WHITE-SPACE: nowrap">non-owner</font> occupied <font style="WHITE-SPACE: nowrap">1-4</font> residential real estate mortgage loans from commercial real estate mortgage loans to residential real estate mortgage loans and consumer home equity loans, respectively. This change in loan category classification was made to better align the Company’s financial reporting classifications with regulatory reporting classifications, and to properly classify these loans for regulatory risk-based capital ratio calculations. Certain amounts reported in previous consolidated financial statements have been reclassified and recalculated to conform to the presentation in this report. These reclassifications did not affect previously reported net income, total loans or total shareholders’ equity.</p> </div>
	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Before Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodBeforeTax	-20941000
	us-gaap	Other Real Estate Disposals OtherRealEstateDisposals	1762000
	us-gaap	Payments For Origination Of Mortgage Loans Held For Sale PaymentsForOriginationOfMortgageLoansHeldForSale	43389000
	us-gaap	Payments Of Dividends Common Stock PaymentsOfDividendsCommonStock	7813000
	us-gaap	Payments To Acquire Available For Sale Securities PaymentsToAcquireAvailableForSaleSecurities	81300000
	us-gaap	Other Real Estate Valuation Adjustments OtherRealEstateValuationAdjustments	90000
	us-gaap	Other Noninterest Expense OtherNoninterestExpense	32927000
	us-gaap	Pension Contributions PensionContributions	554000
	us-gaap	Proceeds From Maturities Prepayments And Calls Of Available For Sale Securities ProceedsFromMaturitiesPrepaymentsAndCallsOfAvailableForSaleSecurities	32906000
	us-gaap	Proceeds From Maturities Prepayments And Calls Of Held To Maturity Securities ProceedsFromMaturitiesPrepaymentsAndCallsOfHeldToMaturitySecurities	36587000
	us-gaap	Proceeds From Sale Of Foreclosed Assets ProceedsFromSaleOfForeclosedAssets	2150000
	us-gaap	Proceeds From Sale Of Other Real Estate ProceedsFromSaleOfOtherRealEstate	2150000
	us-gaap	Proceeds From Stock Options Exercised ProceedsFromStockOptionsExercised	185000
	us-gaap	Postage Expense PostageExpense	659000
	us-gaap	Proceeds From Sale Of Property Held For Sale ProceedsFromSaleOfPropertyHeldForSale	36000
	us-gaap	Professional Fees ProfessionalFees	1546000
	us-gaap	Rental Income Nonoperating RentalIncomeNonoperating	21000
	us-gaap	Proceeds From Repayments Of Short Term Debt ProceedsFromRepaymentsOfShortTermDebt	30673000
	us-gaap	Proceeds From Sale Of Mortgage Loans Held For Sale ProceedsFromSaleOfMortgageLoansHeldForSale	45437000
	us-gaap	Profit Loss ProfitLoss	28939000
	tcbk	True Up Amount Payable To Fdic Upon Fail To Meet Certain Threshold Description TrueUpAmountPayableToFdicUponFailToMeetCertainThresholdDescription	In addition, the agreement specified that at the end of the agreement in May 2020, to the extent that total claimed losses plus servicing expenses, net of recoveries, claimed under the agreement over the entire ten year period of the agreement did not meet a certain threshold, the Company would have been required to pay to the FDIC a “true up” amount equal to fifty percent of the difference of the threshold and actual claimed losses plus servicing expenses, net of recoveries. The Company continually estimated, updated and recorded this “true up” amount, at its estimated present value, since the inception of the agreement in May 2010.
	tcbk	Other Comprehensive Income Loss Joint Beneficiary Agreement Liability Adjustments Before Reclassification And Tax OtherComprehensiveIncomeLossJointBeneficiaryAgreementLiabilityAdjustmentsBeforeReclassificationAndTax	0
	tcbk	Commitments Expiration Date CommitmentsExpirationDate	One year or less or other termination clauses and may require payment of a fee.
	tcbk	Number Of Sites Leased Under Non Cancelable Operating Leases NumberOfSitesLeasedUnderNonCancelableOperatingLeases	44	site
	tcbk	Number Of Policies Owned NumberOfPoliciesOwned	182	Policies
	us-gaap	Share Based Compensation ShareBasedCompensation	722000
	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Outstanding Weighted Average Remaining Contractual Term2 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsOutstandingWeightedAverageRemainingContractualTerm2	P3Y6M
	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Exercises In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice	15.40
	us-gaap	Stock Issued During Period Value Stock Options Exercised StockIssuedDuringPeriodValueStockOptionsExercised	223000
	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period Weighted Average Grant Date Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue	0
	tcbk	Number Of Locations Organized NumberOfLocationsOrganized	2	Location
	tcbk	Insurance Companies Used InsuranceCompaniesUsed	13	Company
	tcbk	Ending Number Of Foreclosed Assets EndingNumberOfForeclosedAssets	8	Assets
	tcbk	Loss Gain On Sale Of Foreclosed Assets LossGainOnSaleOfForeclosedAssets	388000
	tcbk	Change In Market Value Of Mortgage Servicing Rights ChangeInMarketValueOfMortgageServicingRights	-75000
	tcbk	Ending Valuation Allowance EndingValuationAllowance	152000
	tcbk	Other Comprehensive Income Loss Joint Beneficiary Agreement Liability Adjustments Net Of Tax OtherComprehensiveIncomeLossJointBeneficiaryAgreementLiabilityAdjustmentsNetOfTax	0
	tcbk	Payment For Loan And Lease Originations And Principal Collections PaymentForLoanAndLeaseOriginationsAndPrincipalCollections	131073000
	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period Gross ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross	0	shares
	dei	Trading Symbol TradingSymbol	TCBK
	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Forfeitures In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsForfeituresInPeriodWeightedAverageExercisePrice	23.21
	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Grants In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice	0
	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Vested And Expected To Vest Outstanding Weighted Average Remaining Contractual Term1 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingWeightedAverageRemainingContractualTerm1	P1Y3M18D
	us-gaap	Stock Repurchased During Period Value StockRepurchasedDuringPeriodValue	671000
	us-gaap	Stock Issued During Period Shares Stock Options Exercised StockIssuedDuringPeriodSharesStockOptionsExercised	14500	shares
	us-gaap	Unrealized Gain Loss On Securities UnrealizedGainLossOnSecurities	-70000
	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	23280000	shares
	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	22970000	shares
	tcbk	Current And Former Employees And Directors Covered CurrentAndFormerEmployeesAndDirectorsCovered	57	Employees
	tcbk	Number Of Categories Occupied Under Commercial Real Estate Loan NumberOfCategoriesOccupiedUnderCommercialRealEstateLoan	2	Category
	tcbk	Number Of Subsidiary Business Trust NumberOfSubsidiaryBusinessTrust	5	Trust
	us-gaap	Use Of Estimates UseOfEstimates	<div> <p style="MARGIN-BOTTOM: 0pt; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman; MARGIN-TOP: 18pt"> <b>Use of Estimates in the Preparation of Financial Statements</b></p> <p style="MARGIN-BOTTOM: 0pt; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman; MARGIN-TOP: 6pt"> 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.</p> </div>
	tcbk	Other Comprehensive Income Loss Joint Beneficiary Agreement Liability Adjustments Before Tax OtherComprehensiveIncomeLossJointBeneficiaryAgreementLiabilityAdjustmentsBeforeTax	0
	tcbk	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Joint Beneficiary Agreement Liability Before Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAociForJointBeneficiaryAgreementLiabilityBeforeTax	0
	tcbk	End Of Period Death Benefit EndOfPeriodDeathBenefit	164649000
	tcbk	Assessments Assessments	847000
	tcbk	Sale Of Customer Checks SaleOfCustomerChecks	239000
	tcbk	Network Charges NetworkCharges	2663000
	tcbk	Unrealized Gain Loss On Securities Available For Sale UnrealizedGainLossOnSecuritiesAvailableForSale	-21304000
	tcbk	Other Operating Expenses OtherOperatingExpenses	6526000
	tcbk	Restricted Stock Units Released RestrictedStockUnitsReleased	0
	tcbk	Provision For Benefit From Losses On Foreclosed Assets ProvisionForBenefitFromLossesOnForeclosedAssets	90000
	tcbk	Courier Service CourierService	491000
	tcbk	Financial Impact Due To Troubled Debt Restructure Charge Offs Or Additional Provision FinancialImpactDueToTroubledDebtRestructureChargeOffsOrAdditionalProvision	-2000
	tcbk	Available For Sale Securities Sold At Carrying Value AvailableForSaleSecuritiesSoldAtCarryingValue	0
	tcbk	Financial Impact Due To Troubled Debt Restructure Additional Provision FinancialImpactDueToTroubledDebtRestructureAdditionalProvision	44000
	tcbk	Provision For Benefit From Loan Losses Expensed ProvisionForBenefitFromLoanLossesExpensed	-874000
	tcbk	Loan Charged Off Carrying Value LoanChargedOffCarryingValue	0
	tcbk	Incentive Compensation Expense IncentiveCompensationExpense	4611000
	tcbk	Deferred Compensation Arrangements Non Interest Expense DeferredCompensationArrangementsNonInterestExpense	245000
	tcbk	Commissions On Sale Of Non Deposit Investment Products CommissionsOnSaleOfNonDepositInvestmentProducts	1686000
	tcbk	Base Salaries Net Of Deferred Loan Origination Costs BaseSalariesNetOfDeferredLoanOriginationCosts	28391000
	tcbk	Other Comprehensive Income Loss Changes In Joint Beneficiary Agreement Liability Tax OtherComprehensiveIncomeLossChangesInJointBeneficiaryAgreementLiabilityTax	0
	tcbk	Operational Losses OperationalLosses	546000
	tcbk	Foreclosed Assets Expense ForeclosedAssetsExpense	204000
	tcbk	Provision For Reversal Of Losses Unfunded Commitments ProvisionForReversalOfLossesUnfundedCommitments	-563000
	tcbk	Market Value Of Shares Tendered By Employees In Lieu Of Cash To Pay For Exercise Of Options And Or Related Taxes MarketValueOfSharesTenderedByEmployeesInLieuOfCashToPayForExerciseOfOptionsAndOrRelatedTaxes	671000
	tcbk	Increase Decrease In Junior Subordinated Debt IncreaseDecreaseInJuniorSubordinatedDebt	92000
	tcbk	Overdraft Privilege Receivable Criteria OverdraftPrivilegeReceivableCriteria	All holders of such accounts who bring their accounts to a positive balance at least once every thirty days receive the overdraft privilege.
	tcbk	Letter Of Credit Issue Period LetterOfCreditIssuePeriod	One year or less
	tcbk	Life Of Mortgage Backed Securities LifeOfMortgageBackedSecurities	P6Y1M6D
	tcbk	Nonaccrual Status Loans Contractual Past Due NonaccrualStatusLoansContractualPastDue	P90D
	tcbk	Tdr Loans Payment Period In Non Accrual Status TdrLoansPaymentPeriodInNonAccrualStatus	P6M
	tcbk	Fdic Indemnification Agreement Term FdicIndemnificationAgreementTerm	P10Y
	tcbk	Fdic Indemnification Agreement Expiry Date FdicIndemnificationAgreementExpiryDate	2020-05
	tcbk	Common Stock Conversion Ratio CommonStockConversionRatio	1.648265	pure
CY2018Q1	us-gaap	Interest Income Expense After Provision For Loan Loss InterestIncomeExpenseAfterProvisionForLoanLoss	45222000
CY2018Q1	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	44986000
CY2017Q2	us-gaap	Advertising Expense AdvertisingExpense	1167000
CY2017Q2	us-gaap	Allowance For Loan And Lease Losses Adjustments Net AllowanceForLoanAndLeaseLossesAdjustmentsNet	-796000
CY2018Q1	us-gaap	Interest And Fee Income Loans And Leases InterestAndFeeIncomeLoansAndLeases	38049000
CY2018Q1	us-gaap	Noninterest Expense NoninterestExpense	38162000
CY2018Q1	us-gaap	Noninterest Income NoninterestIncome	12290000
CY2017Q2	us-gaap	Allowance For Loan And Lease Losses Write Offs AllowanceForLoanAndLeaseLossesWriteOffs	2512000
CY2017Q2	us-gaap	Allowance For Loan And Lease Loss Recovery Of Bad Debts AllowanceForLoanAndLeaseLossRecoveryOfBadDebts	434000
CY2017Q2	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	352000
CY2017Q2	us-gaap	Bank Owned Life Insurance Income BankOwnedLifeInsuranceIncome	626000
CY2017Q2	us-gaap	Brokerage Commissions Revenue BrokerageCommissionsRevenue	161000
CY2017Q2	us-gaap	Common Stock Dividends Per Share Cash Paid CommonStockDividendsPerShareCashPaid	0.17
CY2018Q1	us-gaap	Net Income Loss NetIncomeLoss	13910000
CY2018Q1	tcbk	All Other Loan Interest Income AllOtherLoanInterestIncome	37417000
CY2018Q1	tcbk	Debt Securities Dividends And Interest Bearing Cash At Banks DebtSecuritiesDividendsAndInterestBearingCashAtBanks	9072000
CY2018Q1	tcbk	Discount Accretion Purchased Credit Impaired Cash Basis DiscountAccretionPurchasedCreditImpairedCashBasis	246000
CY2018Q1	tcbk	Discount Accretion Write Down Purchased Credit Impaired Other DiscountAccretionWriteDownPurchasedCreditImpairedOther	60000
CY2018Q1	tcbk	Discount Accretion Purchased Non Credit Impaired DiscountAccretionPurchasedNonCreditImpaired	326000
CY2018Q1	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	5440000
CY2018Q1	us-gaap	Interest Expense InterestExpense	2135000
CY2018Q1	us-gaap	Interest And Dividend Income Operating InterestAndDividendIncomeOperating	47121000
CY2018Q1	tcbk	Provision For Benefit From Loan Losses Expensed ProvisionForBenefitFromLoanLossesExpensed	-236000
CY2017Q2	us-gaap	Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	0	shares
	tcbk	Effective Income Tax Rate Reconciliation Nondeductible Expense Merger Expenses EffectiveIncomeTaxRateReconciliationNondeductibleExpenseMergerExpenses	0.003	pure
	tcbk	Percentage Of True Up Amount Payable To Fdic Upon Fail To Meet Certain Threshold PercentageOfTrueUpAmountPayableToFdicUponFailToMeetCertainThreshold	0.50	pure
	tcbk	Market Plus Service Restricted Stock Units Released MarketPlusServiceRestrictedStockUnitsReleased	0
	tcbk	Adjustments To Additional Paid In Capital Share Based Compensation Market Plus Service Restricted Stock Units Requisite Service Period Recognition AdjustmentsToAdditionalPaidInCapitalShareBasedCompensationMarketPlusServiceRestrictedStockUnitsRequisiteServicePeriodRecognition	197000
CY2017	us-gaap	Allowance For Loan And Lease Losses Adjustments Net AllowanceForLoanAndLeaseLossesAdjustmentsNet	89000
CY2017	us-gaap	Allowance For Loan And Lease Losses Write Offs AllowanceForLoanAndLeaseLossesWriteOffs	4410000
CY2017	us-gaap	Allowance For Loan And Lease Loss Recovery Of Bad Debts AllowanceForLoanAndLeaseLossRecoveryOfBadDebts	2141000
CY2017	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.35	pure
CY2017	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Transfers Out Of Level3 FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetTransfersOutOfLevel3	0
CY2017	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Transfers Into Level3 FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetTransfersIntoLevel3	0
CY2017	us-gaap	Other Than Temporary Impairment Losses Investments Availableforsale Securities OtherThanTemporaryImpairmentLossesInvestmentsAvailableforsaleSecurities	0
CY2017Q1	us-gaap	Common Stock Dividends Per Share Cash Paid CommonStockDividendsPerShareCashPaid	0.15
CY2017Q1	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.52
CY2017Q1	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	19431000
CY2017Q1	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	7352000
CY2017Q1	us-gaap	Interest Expense InterestExpense	1491000
CY2017Q1	us-gaap	Interest And Dividend Income Operating InterestAndDividendIncomeOperating	43484000
CY2017Q1	us-gaap	Interest Income Expense After Provision For Loan Loss InterestIncomeExpenseAfterProvisionForLoanLoss	43550000
CY2017Q1	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	41993000
CY2017Q1	us-gaap	Interest And Fee Income Loans And Leases InterestAndFeeIncomeLoansAndLeases	34914000
CY2017Q1	us-gaap	Noninterest Expense NoninterestExpense	35822000
CY2017Q1	us-gaap	Noninterest Income NoninterestIncome	11703000
CY2017Q1	us-gaap	Net Income Loss NetIncomeLoss	12079000
CY2017Q1	tcbk	All Other Loan Interest Income AllOtherLoanInterestIncome	33373000
CY2017Q1	tcbk	Debt Securities Dividends And Interest Bearing Cash At Banks DebtSecuritiesDividendsAndInterestBearingCashAtBanks	8570000
CY2017Q1	tcbk	Discount Accretion Purchased Credit Impaired Cash Basis DiscountAccretionPurchasedCreditImpairedCashBasis	112000
CY2017Q1	tcbk	Discount Accretion Write Down Purchased Credit Impaired Other DiscountAccretionWriteDownPurchasedCreditImpairedOther	631000
CY2017Q1	tcbk	Discount Accretion Purchased Non Credit Impaired DiscountAccretionPurchasedNonCreditImpaired	798000
CY2017Q1	tcbk	Provision For Benefit From Loan Losses Expensed ProvisionForBenefitFromLoanLossesExpensed	-1557000
CY2018Q1	us-gaap	Common Stock Dividends Per Share Cash Paid CommonStockDividendsPerShareCashPaid	0.17
CY2018Q1	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.60
CY2018Q1	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	19350000
CY2017Q2	us-gaap	Certain Loans Acquired In Transfer Not Accounted For As Debt Securities Accretable Yield Reclassifications To From Nonaccretable Difference CertainLoansAcquiredInTransferNotAccountedForAsDebtSecuritiesAccretableYieldReclassificationsToFromNonaccretableDifference	-546000
CY2017Q2	us-gaap	Communication Communication	668000
CY2017Q2	us-gaap	Certain Loans Acquired In Transfer Not Accounted For As Debt Securities Accretable Yield Accretion CertainLoansAcquiredInTransferNotAccountedForAsDebtSecuritiesAccretableYieldAccretion	1058000
CY2017Q2	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	16490000
CY2017Q2	us-gaap	Contractually Specified Servicing Fees Late Fees And Ancillary Fees Earned In Exchange For Servicing Financial Assets ContractuallySpecifiedServicingFeesLateFeesAndAncillaryFeesEarnedInExchangeForServicingFinancialAssets	526000
CY2017Q2	us-gaap	Defined Benefit Plan Amortization Of Transition Asset Obligation DefinedBenefitPlanAmortizationOfTransitionAssetObligation	-1000
CY2017Q2	us-gaap	Defined Benefit Plan Interest Cost DefinedBenefitPlanInterestCost	248000
CY2017Q2	us-gaap	Defined Benefit Plan Amortization Of Gains Losses DefinedBenefitPlanAmortizationOfGainsLosses	-97000
CY2017Q2	us-gaap	Defined Benefit Plan Service Cost DefinedBenefitPlanServiceCost	235000
CY2017Q2	us-gaap	Depreciation Nonproduction DepreciationNonproduction	1394000
CY2017Q2	us-gaap	Defined Benefit Plan Amortization Of Prior Service Cost Credit DefinedBenefitPlanAmortizationOfPriorServiceCostCredit	-3000
CY2017Q2	us-gaap	Defined Benefit Plan Benefit Obligation Benefits Paid DefinedBenefitPlanBenefitObligationBenefitsPaid	329000
CY2017Q2	us-gaap	Defined Benefit Plan Net Periodic Benefit Cost DefinedBenefitPlanNetPeriodicBenefitCost	578000
CY2017Q2	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.360	pure
CY2017Q2	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.58
CY2017Q2	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.350	pure
CY2017Q2	us-gaap	Effective Income Tax Rate Reconciliation Nondeductible Expense Share Based Compensation Cost EffectiveIncomeTaxRateReconciliationNondeductibleExpenseShareBasedCompensationCost	-0.021	pure
CY2017Q2	us-gaap	Effective Income Tax Rate Reconciliation State And Local Income Taxes EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes	0.066	pure
CY2017Q2	us-gaap	Equipment Expense EquipmentExpense	1805000
CY2017Q2	us-gaap	Effective Income Tax Rate Reconciliation Tax Exempt Income EffectiveIncomeTaxRateReconciliationTaxExemptIncome	0.017	pure
CY2017Q2	us-gaap	Employee Stock Ownership Plan Esop Compensation Expense EmployeeStockOwnershipPlanESOPCompensationExpense	540000
CY2017Q2	us-gaap	Dividend Income Operating DividendIncomeOperating	328000
CY2017Q2	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.59
CY2017Q2	us-gaap	Effective Income Tax Rate Reconciliation Nondeductible Expense Life Insurance EffectiveIncomeTaxRateReconciliationNondeductibleExpenseLifeInsurance	0.010	pure
CY2017Q2	us-gaap	Effective Income Tax Rate Reconciliation Other Adjustments EffectiveIncomeTaxRateReconciliationOtherAdjustments	-0.001	pure
CY2017Q2	us-gaap	Effective Income Tax Rate Reconciliation Tax Credits EffectiveIncomeTaxRateReconciliationTaxCredits	0.007	pure
CY2017Q2	us-gaap	Employee Stock Ownership Plan Esop Cash Contributions To Esop EmployeeStockOwnershipPlanESOPCashContributionsToESOP	1073000
CY2017Q2	us-gaap	Fdic Indemnification Asset Period Increase Decrease FDICIndemnificationAssetPeriodIncreaseDecrease	-1000
CY2017Q2	us-gaap	Financing Receivable Modifications Post Modification Recorded Investment2 FinancingReceivableModificationsPostModificationRecordedInvestment2	1302000
CY2017Q2	us-gaap	Gain Loss On Disposition Of Assets GainLossOnDispositionOfAssets	-28000
CY2017Q2	us-gaap	Financing Receivable Modifications Pre Modification Recorded Investment2 FinancingReceivableModificationsPreModificationRecordedInvestment2	1435000
CY2017Q2	us-gaap	Gain Loss On Sales Of Loans Net GainLossOnSalesOfLoansNet	777000
CY2017Q2	us-gaap	Financing Receivable Modifications Number Of Contracts2 FinancingReceivableModificationsNumberOfContracts2	7
CY2017Q2	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	21236000
CY2017Q2	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	7647000
CY2017Q2	us-gaap	Interest Expense InterestExpense	1610000
CY2017Q2	us-gaap	Interest Income Federal Funds Sold And Securities Purchased Under Agreements To Resell InterestIncomeFederalFundsSoldAndSecuritiesPurchasedUnderAgreementsToResell	353000
CY2017Q2	us-gaap	Interest Income Securities Taxable InterestIncomeSecuritiesTaxable	6903000
CY2017Q2	us-gaap	Interest Income Securities Tax Exempt InterestIncomeSecuritiesTaxExempt	1042000
CY2017Q2	us-gaap	Interest And Dividend Income Operating InterestAndDividendIncomeOperating	45044000
CY2017Q2	us-gaap	Interest Expense Deposits InterestExpenseDeposits	974000
CY2017Q2	us-gaap	Interest Expense Other Long Term Debt InterestExpenseOtherLongTermDebt	13000
CY2017Q2	us-gaap	Interest Income Expense After Provision For Loan Loss InterestIncomeExpenseAfterProvisionForLoanLoss	44230000
CY2017Q2	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	43434000
CY2017Q2	us-gaap	Interest Expense Junior Subordinated Debentures InterestExpenseJuniorSubordinatedDebentures	623000
CY2017Q2	us-gaap	Incremental Common Shares Attributable To Share Based Payment Arrangements IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	340000	shares
CY2017Q2	us-gaap	Information Technology And Data Processing InformationTechnologyAndDataProcessing	2441000
CY2017Q2	us-gaap	Interest And Fee Income Loans And Leases InterestAndFeeIncomeLoansAndLeases	36418000
CY2017Q2	us-gaap	Labor And Related Expense LaborAndRelatedExpense	20494000
CY2017Q2	us-gaap	Lease And Rental Expense LeaseAndRentalExpense	1048000
CY2017Q2	us-gaap	Noninterest Expense NoninterestExpense	35904000
CY2017Q2	us-gaap	Noninterest Income NoninterestIncome	12910000
CY2017Q2	us-gaap	Net Income Loss NetIncomeLoss	13589000
CY2017Q2	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	2901000
CY2017Q2	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Adjustment Before Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentBeforeTax	-95000
CY2017Q2	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Adjustment Net Of Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax	-55000
CY2017Q2	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci Pension And Other Postretirement Benefit Plans Before Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansBeforeTax	95000
CY2017Q2	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci Pension And Other Postretirement Benefit Plans For Net Gain Loss Before Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetGainLossBeforeTax	-96000
CY2017Q2	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	-1000
CY2017Q2	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Adjustment Net Of Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax	2846000
CY2017Q2	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Adjustment Before Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentBeforeTax	4911000
CY2017Q2	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansTax	-40000
CY2017Q2	us-gaap	Noninterest Income Other NoninterestIncomeOther	3431000
CY2017Q2	tcbk	All Other Loan Interest Income AllOtherLoanInterestIncome	34248000
CY2017Q2	tcbk	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Joint Beneficiary Agreement Liability Before Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAociForJointBeneficiaryAgreementLiabilityBeforeTax	0
CY2017Q2	us-gaap	Noninterest Income Other Operating Income NoninterestIncomeOtherOperatingIncome	1323000
CY2017Q2	tcbk	Other Comprehensive Income Loss Joint Beneficiary Agreement Liability Adjustments Net Of Tax OtherComprehensiveIncomeLossJointBeneficiaryAgreementLiabilityAdjustmentsNetOfTax	0
CY2017Q2	tcbk	Debt Securities Dividends And Interest Bearing Cash At Banks DebtSecuritiesDividendsAndInterestBearingCashAtBanks	8626000
CY2018Q2	us-gaap	Allowance For Loan And Lease Losses Adjustments Net AllowanceForLoanAndLeaseLossesAdjustmentsNet	-638000
CY2017Q2	us-gaap	Occupancy Net OccupancyNet	2705000
CY2017Q2	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesTax	2065000
CY2017Q2	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Before Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodBeforeTax	4911000
CY2017Q2	us-gaap	Other Labor Related Expenses OtherLaborRelatedExpenses	4664000
CY2017Q2	us-gaap	Other Noninterest Expense OtherNoninterestExpense	15410000
CY2017Q2	us-gaap	Pension Contributions PensionContributions	329000
CY2017Q2	us-gaap	Postage Expense PostageExpense	329000
CY2017Q2	us-gaap	Professional Fees ProfessionalFees	690000
CY2017Q2	us-gaap	Rental Income Nonoperating RentalIncomeNonoperating	10000
CY2017Q2	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	23240000	shares
CY2017Q2	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	22900000	shares
CY2017Q2	tcbk	Loss Gain On Sale Of Foreclosed Assets LossGainOnSaleOfForeclosedAssets	153000
CY2017Q2	tcbk	Operating Interest Income Other OperatingInterestIncomeOther	232000
CY2017Q2	tcbk	Other Comprehensive Income Loss Joint Beneficiary Agreement Liability Adjustments Before Reclassification And Tax OtherComprehensiveIncomeLossJointBeneficiaryAgreementLiabilityAdjustmentsBeforeReclassificationAndTax	0
CY2017Q2	tcbk	Gain On Termination Of Fdic Loss Share Agreement GainOnTerminationOfFDICLossShareAgreement	-712000
CY2017Q2	tcbk	Other Comprehensive Income Loss Joint Beneficiary Agreement Liability Adjustments Before Tax OtherComprehensiveIncomeLossJointBeneficiaryAgreementLiabilityAdjustmentsBeforeTax	0
CY2017Q2	tcbk	Federal Deposit Insurance Corporation Indemnification Asset Cash Received Payments Made FederalDepositInsuranceCorporationIndemnificationAssetCashReceivedPaymentsMade	-184000
CY2017Q2	tcbk	Assessments Assessments	420000
CY2017Q2	tcbk	Sale Of Customer Checks SaleOfCustomerChecks	94000
CY2017Q2	tcbk	Discount Accretion Purchased Credit Impaired Cash Basis DiscountAccretionPurchasedCreditImpairedCashBasis	386000
CY2017Q2	tcbk	Network Charges NetworkCharges	1075000
CY2017Q2	tcbk	Other Operating Expenses OtherOperatingExpenses	3068000
CY2017Q2	tcbk	Provision For Benefit From Losses On Foreclosed Assets ProvisionForBenefitFromLossesOnForeclosedAssets	94000
CY2017Q2	tcbk	Discount Accretion Write Down Purchased Credit Impaired Other DiscountAccretionWriteDownPurchasedCreditImpairedOther	797000
CY2017Q2	tcbk	Courier Service CourierService	263000
CY2017Q2	tcbk	Discount Accretion Purchased Non Credit Impaired DiscountAccretionPurchasedNonCreditImpaired	987000
CY2017Q2	tcbk	Financial Impact Due To Troubled Debt Restructure Additional Provision FinancialImpactDueToTroubledDebtRestructureAdditionalProvision	-182000
CY2017Q2	tcbk	Provision For Benefit From Loan Losses Expensed ProvisionForBenefitFromLoanLossesExpensed	-796000
CY2017Q2	tcbk	Incentive Compensation Expense IncentiveCompensationExpense	2173000
CY2017Q2	tcbk	Deferred Compensation Arrangements Non Interest Expense DeferredCompensationArrangementsNonInterestExpense	109000
CY2017Q2	tcbk	Commissions On Sale Of Non Deposit Investment Products CommissionsOnSaleOfNonDepositInvestmentProducts	705000
CY2017Q2	tcbk	Base Salaries Net Of Deferred Loan Origination Costs BaseSalariesNetOfDeferredLoanOriginationCosts	13657000
CY2017Q2	tcbk	Other Comprehensive Income Loss Changes In Joint Beneficiary Agreement Liability Tax OtherComprehensiveIncomeLossChangesInJointBeneficiaryAgreementLiabilityTax	0
CY2017Q2	tcbk	Operational Losses OperationalLosses	430000
CY2017Q2	tcbk	Foreclosed Assets Expense ForeclosedAssetsExpense	38000
CY2017Q2	tcbk	Provision For Reversal Of Losses Unfunded Commitments ProvisionForReversalOfLossesUnfundedCommitments	135000
CY2017Q2	tcbk	Change In Indemnification Asset ChangeInIndemnificationAsset	711000
CY2018Q2	us-gaap	Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	0	shares
CY2018Q2	us-gaap	Advertising Expense AdvertisingExpense	1035000
CY2018Q2	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.65
CY2018Q2	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.210	pure
CY2018Q2	us-gaap	Allowance For Loan And Lease Losses Write Offs AllowanceForLoanAndLeaseLossesWriteOffs	318000
CY2018Q2	us-gaap	Interest Income Securities Tax Exempt InterestIncomeSecuritiesTaxExempt	1042000
CY2018Q2	us-gaap	Allowance For Loan And Lease Loss Recovery Of Bad Debts AllowanceForLoanAndLeaseLossRecoveryOfBadDebts	507000
CY2018Q2	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	339000
CY2018Q2	us-gaap	Bank Owned Life Insurance Income BankOwnedLifeInsuranceIncome	656000
CY2018Q2	us-gaap	Brokerage Commissions Revenue BrokerageCommissionsRevenue	200000
CY2018Q2	us-gaap	Common Stock Dividends Per Share Cash Paid CommonStockDividendsPerShareCashPaid	0.17
CY2018Q2	us-gaap	Certain Loans Acquired In Transfer Not Accounted For As Debt Securities Accretable Yield Reclassifications To From Nonaccretable Difference CertainLoansAcquiredInTransferNotAccountedForAsDebtSecuritiesAccretableYieldReclassificationsToFromNonaccretableDifference	110000
CY2018Q2	us-gaap	Communication Communication	681000
CY2018Q2	us-gaap	Certain Loans Acquired In Transfer Not Accounted For As Debt Securities Accretable Yield Accretion CertainLoansAcquiredInTransferNotAccountedForAsDebtSecuritiesAccretableYieldAccretion	261000
CY2018Q2	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	11111000
CY2018Q2	us-gaap	Contractually Specified Servicing Fees Late Fees And Ancillary Fees Earned In Exchange For Servicing Financial Assets ContractuallySpecifiedServicingFeesLateFeesAndAncillaryFeesEarnedInExchangeForServicingFinancialAssets	511000
CY2018Q2	us-gaap	Defined Benefit Plan Interest Cost DefinedBenefitPlanInterestCost	237000
CY2018Q2	us-gaap	Defined Benefit Plan Amortization Of Gains Losses DefinedBenefitPlanAmortizationOfGainsLosses	-127000
CY2018Q2	us-gaap	Defined Benefit Plan Service Cost DefinedBenefitPlanServiceCost	243000
CY2018Q2	us-gaap	Depreciation Nonproduction DepreciationNonproduction	1386000
CY2018Q2	us-gaap	Defined Benefit Plan Amortization Of Prior Service Cost Credit DefinedBenefitPlanAmortizationOfPriorServiceCostCredit	-13000
CY2018Q2	us-gaap	Defined Benefit Plan Benefit Obligation Benefits Paid DefinedBenefitPlanBenefitObligationBenefitsPaid	287000
CY2018Q2	us-gaap	Defined Benefit Plan Net Periodic Benefit Cost DefinedBenefitPlanNetPeriodicBenefitCost	594000
CY2018Q2	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.278	pure
CY2018Q2	us-gaap	Effective Income Tax Rate Reconciliation Nondeductible Expense Share Based Compensation Cost EffectiveIncomeTaxRateReconciliationNondeductibleExpenseShareBasedCompensationCost	-0.004	pure
CY2018Q2	us-gaap	Effective Income Tax Rate Reconciliation State And Local Income Taxes EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes	0.088	pure
CY2018Q2	us-gaap	Equipment Expense EquipmentExpense	1637000
CY2018Q2	us-gaap	Effective Income Tax Rate Reconciliation Tax Exempt Income EffectiveIncomeTaxRateReconciliationTaxExemptIncome	0.010	pure
CY2018Q2	us-gaap	Employee Stock Ownership Plan Esop Compensation Expense EmployeeStockOwnershipPlanESOPCompensationExpense	475000
CY2018Q2	us-gaap	Dividend Income Operating DividendIncomeOperating	298000
CY2018Q2	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.65
CY2018Q2	us-gaap	Effective Income Tax Rate Reconciliation Nondeductible Expense Life Insurance EffectiveIncomeTaxRateReconciliationNondeductibleExpenseLifeInsurance	0.007	pure
CY2018Q2	us-gaap	Effective Income Tax Rate Reconciliation Other Adjustments EffectiveIncomeTaxRateReconciliationOtherAdjustments	0.004	pure
CY2018Q2	us-gaap	Effective Income Tax Rate Reconciliation Tax Credits EffectiveIncomeTaxRateReconciliationTaxCredits	0.006	pure
CY2018Q2	us-gaap	Employee Stock Ownership Plan Esop Cash Contributions To Esop EmployeeStockOwnershipPlanESOPCashContributionsToESOP	940000
CY2018Q2	us-gaap	Financing Receivable Modifications Subsequent Default Number Of Contracts1 FinancingReceivableModificationsSubsequentDefaultNumberOfContracts1	4
CY2018Q2	us-gaap	Financing Receivable Modifications Subsequent Default Recorded Investment1 FinancingReceivableModificationsSubsequentDefaultRecordedInvestment1	340000
CY2018Q2	us-gaap	Financing Receivable Modifications Post Modification Recorded Investment2 FinancingReceivableModificationsPostModificationRecordedInvestment2	456000
CY2018Q2	us-gaap	Gain Loss On Disposition Of Assets GainLossOnDispositionOfAssets	-41000
CY2018Q2	us-gaap	Financing Receivable Modifications Pre Modification Recorded Investment2 FinancingReceivableModificationsPreModificationRecordedInvestment2	450000
CY2018Q2	us-gaap	Gain Loss On Sales Of Loans Net GainLossOnSalesOfLoansNet	666000
CY2018Q2	us-gaap	Financing Receivable Modifications Number Of Contracts2 FinancingReceivableModificationsNumberOfContracts2	3
CY2018Q2	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	20811000
CY2018Q2	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	5782000
CY2018Q2	us-gaap	Interest Expense InterestExpense	2609000
CY2018Q2	us-gaap	Interest Income Federal Funds Sold And Securities Purchased Under Agreements To Resell InterestIncomeFederalFundsSoldAndSecuritiesPurchasedUnderAgreementsToResell	396000
CY2018Q2	us-gaap	Interest Income Securities Taxable InterestIncomeSecuritiesTaxable	7438000
CY2018Q2	us-gaap	Labor And Related Expense LaborAndRelatedExpense	21453000
CY2018Q2	us-gaap	Lease And Rental Expense LeaseAndRentalExpense	949000
CY2018Q2	us-gaap	Net Income Loss NetIncomeLoss	15029000
CY2018Q2	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	-3918000
CY2018Q2	us-gaap	Interest And Dividend Income Operating InterestAndDividendIncomeOperating	48478000
CY2018Q2	us-gaap	Marketable Securities Gain Loss MarketableSecuritiesGainLoss	-23000
CY2018Q2	us-gaap	Noninterest Expense NoninterestExpense	37870000
CY2018Q2	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Adjustment Before Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentBeforeTax	-114000
CY2018Q2	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Adjustment Net Of Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax	-80000
CY2018Q2	us-gaap	Interest Expense Deposits InterestExpenseDeposits	1234000
CY2018Q2	us-gaap	Interest Expense Other Long Term Debt InterestExpenseOtherLongTermDebt	586000
CY2018Q2	us-gaap	Interest Income Expense After Provision For Loan Loss InterestIncomeExpenseAfterProvisionForLoanLoss	46507000
CY2018Q2	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	45869000
CY2018Q2	us-gaap	Interest Expense Junior Subordinated Debentures InterestExpenseJuniorSubordinatedDebentures	789000
CY2018Q2	us-gaap	Incremental Common Shares Attributable To Share Based Payment Arrangements IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	293000	shares
CY2018Q2	us-gaap	Information Technology And Data Processing InformationTechnologyAndDataProcessing	2679000
CY2018Q2	us-gaap	Interest And Fee Income Loans And Leases InterestAndFeeIncomeLoansAndLeases	39304000
CY2018Q2	us-gaap	Noninterest Income NoninterestIncome	12174000
CY2018Q2	us-gaap	Noncash Merger Related Costs NoncashMergerRelatedCosts	601000
CY2018Q2	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci Pension And Other Postretirement Benefit Plans Before Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansBeforeTax	114000
CY2018Q2	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci Pension And Other Postretirement Benefit Plans For Net Gain Loss Before Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetGainLossBeforeTax	-127000
CY2018Q2	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
CY2018Q2	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Adjustment Net Of Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax	-3998000
CY2018Q2	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Adjustment Before Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentBeforeTax	-5676000
CY2018Q2	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansTax	-34000
CY2018Q2	us-gaap	Noninterest Income Other NoninterestIncomeOther	2946000
CY2018Q2	us-gaap	Noninterest Income Other Operating Income NoninterestIncomeOtherOperatingIncome	814000
CY2018Q2	us-gaap	Occupancy Net OccupancyNet	2720000
CY2018Q2	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesTax	-1678000
CY2018Q2	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Before Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodBeforeTax	-5676000
CY2018Q2	us-gaap	Other Labor Related Expenses OtherLaborRelatedExpenses	4865000
CY2018Q2	us-gaap	Other Noninterest Expense OtherNoninterestExpense	16417000
CY2018Q2	us-gaap	Pension Contributions PensionContributions	287000
CY2018Q2	us-gaap	Postage Expense PostageExpense	301000
CY2018Q2	us-gaap	Professional Fees ProfessionalFees	774000
CY2018Q2	us-gaap	Rental Income Nonoperating RentalIncomeNonoperating	10000
CY2018Q2	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	23276000	shares
CY2018Q2	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	22983000	shares
CY2018Q2	tcbk	Loss Gain On Sale Of Foreclosed Assets LossGainOnSaleOfForeclosedAssets	17000
CY2018Q2	tcbk	All Other Loan Interest Income AllOtherLoanInterestIncome	38745000
CY2018Q2	tcbk	Other Comprehensive Income Loss Joint Beneficiary Agreement Liability Adjustments Net Of Tax OtherComprehensiveIncomeLossJointBeneficiaryAgreementLiabilityAdjustmentsNetOfTax	0
CY2018Q2	tcbk	Operating Interest Income Other OperatingInterestIncomeOther	523000
CY2018Q2	tcbk	Other Comprehensive Income Loss Joint Beneficiary Agreement Liability Adjustments Before Reclassification And Tax OtherComprehensiveIncomeLossJointBeneficiaryAgreementLiabilityAdjustmentsBeforeReclassificationAndTax	0
CY2018Q2	tcbk	Other Comprehensive Income Loss Joint Beneficiary Agreement Liability Adjustments Before Tax OtherComprehensiveIncomeLossJointBeneficiaryAgreementLiabilityAdjustmentsBeforeTax	0
CY2018Q2	tcbk	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Joint Beneficiary Agreement Liability Before Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAociForJointBeneficiaryAgreementLiabilityBeforeTax	0
CY2018Q2	tcbk	Debt Securities Dividends And Interest Bearing Cash At Banks DebtSecuritiesDividendsAndInterestBearingCashAtBanks	9174000
CY2018Q2	tcbk	Assessments Assessments	417000
CY2018Q2	tcbk	Sale Of Customer Checks SaleOfCustomerChecks	138000
CY2018Q2	tcbk	Discount Accretion Purchased Credit Impaired Cash Basis DiscountAccretionPurchasedCreditImpairedCashBasis	180000
CY2018Q2	tcbk	Network Charges NetworkCharges	1437000
CY2018Q2	tcbk	Other Operating Expenses OtherOperatingExpenses	3277000
CY2018Q2	tcbk	Discount Accretion Write Down Purchased Credit Impaired Other DiscountAccretionWriteDownPurchasedCreditImpairedOther	95000
CY2018Q2	tcbk	Courier Service CourierService	224000
CY2018Q2	tcbk	Financial Impact Due To Troubled Debt Restructure Charge Offs Or Additional Provision FinancialImpactDueToTroubledDebtRestructureChargeOffsOrAdditionalProvision	-2000
CY2018Q2	tcbk	Discount Accretion Purchased Non Credit Impaired DiscountAccretionPurchasedNonCreditImpaired	284000
CY2018Q2	tcbk	Financial Impact Due To Troubled Debt Restructure Additional Provision FinancialImpactDueToTroubledDebtRestructureAdditionalProvision	32000
CY2018Q2	tcbk	Provision For Benefit From Loan Losses Expensed ProvisionForBenefitFromLoanLossesExpensed	-638000
CY2018Q2	tcbk	Incentive Compensation Expense IncentiveCompensationExpense	2159000
CY2018Q2	tcbk	Deferred Compensation Arrangements Non Interest Expense DeferredCompensationArrangementsNonInterestExpense	121000
CY2018Q2	tcbk	Commissions On Sale Of Non Deposit Investment Products CommissionsOnSaleOfNonDepositInvestmentProducts	810000
CY2018Q2	tcbk	Base Salaries Net Of Deferred Loan Origination Costs BaseSalariesNetOfDeferredLoanOriginationCosts	14429000
CY2018Q2	tcbk	Other Comprehensive Income Loss Changes In Joint Beneficiary Agreement Liability Tax OtherComprehensiveIncomeLossChangesInJointBeneficiaryAgreementLiabilityTax	0
CY2018Q2	tcbk	Operational Losses OperationalLosses	252000
CY2018Q2	tcbk	Foreclosed Assets Expense ForeclosedAssetsExpense	180000
CY2018Q2	tcbk	Provision For Reversal Of Losses Unfunded Commitments ProvisionForReversalOfLossesUnfundedCommitments	137000
CY2018Q2	tcbk	Effective Income Tax Rate Reconciliation Nondeductible Expense Merger Expenses EffectiveIncomeTaxRateReconciliationNondeductibleExpenseMergerExpenses	0.003	pure
CY2017Q3	us-gaap	Common Stock Dividends Per Share Cash Paid CommonStockDividendsPerShareCashPaid	0.17
CY2017Q3	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.51
CY2017Q3	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	19027000
CY2017Q3	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	7130000
CY2017Q3	us-gaap	Interest Expense InterestExpense	1829000
CY2017Q3	us-gaap	Interest And Dividend Income Operating InterestAndDividendIncomeOperating	45913000
CY2017Q3	us-gaap	Interest Income Expense After Provision For Loan Loss InterestIncomeExpenseAfterProvisionForLoanLoss	43319000
CY2017Q3	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	44084000
CY2017Q3	us-gaap	Interest And Fee Income Loans And Leases InterestAndFeeIncomeLoansAndLeases	37268000
CY2017Q3	us-gaap	Noninterest Expense NoninterestExpense	37222000
CY2017Q3	us-gaap	Noninterest Income NoninterestIncome	12930000
CY2017Q3	us-gaap	Net Income Loss NetIncomeLoss	11897000
CY2017Q3	tcbk	All Other Loan Interest Income AllOtherLoanInterestIncome	35904000
CY2017Q3	tcbk	Debt Securities Dividends And Interest Bearing Cash At Banks DebtSecuritiesDividendsAndInterestBearingCashAtBanks	8645000
CY2017Q3	tcbk	Discount Accretion Purchased Credit Impaired Cash Basis DiscountAccretionPurchasedCreditImpairedCashBasis	398000
CY2017Q3	tcbk	Discount Accretion Write Down Purchased Credit Impaired Other DiscountAccretionWriteDownPurchasedCreditImpairedOther	407000
CY2017Q3	tcbk	Discount Accretion Purchased Non Credit Impaired DiscountAccretionPurchasedNonCreditImpaired	559000
CY2017Q3	tcbk	Provision For Benefit From Loan Losses Expensed ProvisionForBenefitFromLoanLossesExpensed	765000
CY2017Q4	us-gaap	Common Stock Dividends Per Share Cash Paid CommonStockDividendsPerShareCashPaid	0.17
CY2017Q4	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.13
CY2017Q4	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	17818000
CY2017Q4	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	14829000
CY2017Q4	us-gaap	Interest Expense InterestExpense	1868000
CY2017Q4	us-gaap	Interest And Dividend Income Operating InterestAndDividendIncomeOperating	46961000
CY2017Q4	us-gaap	Interest Income Expense After Provision For Loan Loss InterestIncomeExpenseAfterProvisionForLoanLoss	43416000
CY2017Q4	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	45093000
CY2017Q4	us-gaap	Interest And Fee Income Loans And Leases InterestAndFeeIncomeLoansAndLeases	38194000
CY2017Q4	us-gaap	Noninterest Expense NoninterestExpense	38076000
CY2017Q4	us-gaap	Noninterest Income NoninterestIncome	12478000
CY2017Q4	us-gaap	Net Income Loss NetIncomeLoss	2989000
CY2017Q4	tcbk	All Other Loan Interest Income AllOtherLoanInterestIncome	36705000
CY2017Q4	tcbk	Debt Securities Dividends And Interest Bearing Cash At Banks DebtSecuritiesDividendsAndInterestBearingCashAtBanks	8767000
CY2017Q4	tcbk	Discount Accretion Purchased Credit Impaired Cash Basis DiscountAccretionPurchasedCreditImpairedCashBasis	516000
CY2017Q4	tcbk	Discount Accretion Write Down Purchased Credit Impaired Other DiscountAccretionWriteDownPurchasedCreditImpairedOther	445000
CY2017Q4	tcbk	Discount Accretion Purchased Non Credit Impaired DiscountAccretionPurchasedNonCreditImpaired	528000
CY2017Q4	tcbk	Provision For Benefit From Loan Losses Expensed ProvisionForBenefitFromLoanLossesExpensed	1677000

Files In Submission

Name	View Source	Status
0001193125-18-244470-index-headers.html	Edgar Link	pending
0001193125-18-244470-index.html	Edgar Link	pending
0001193125-18-244470.txt	Edgar Link	pending
0001193125-18-244470-xbrl.zip	Edgar Link	pending
d601701d10q.htm	Edgar Link	pending
d601701dex311.htm	Edgar Link	pending
d601701dex312.htm	Edgar Link	pending
d601701dex321.htm	Edgar Link	pending
d601701dex322.htm	Edgar Link	pending
FilingSummary.xml	Edgar Link	unprocessable
Financial_Report.xlsx	Edgar Link	pending
R1.htm	Edgar Link	pending
R10.htm	Edgar Link	pending
R100.htm	Edgar Link	pending
R101.htm	Edgar Link	pending
R102.htm	Edgar Link	pending
R103.htm	Edgar Link	pending
R104.htm	Edgar Link	pending
R105.htm	Edgar Link	pending
R106.htm	Edgar Link	pending
R107.htm	Edgar Link	pending
R108.htm	Edgar Link	pending
R109.htm	Edgar Link	pending
R11.htm	Edgar Link	pending
R110.htm	Edgar Link	pending
R111.htm	Edgar Link	pending
R112.htm	Edgar Link	pending
R113.htm	Edgar Link	pending
R114.htm	Edgar Link	pending
R115.htm	Edgar Link	pending
R116.htm	Edgar Link	pending
R117.htm	Edgar Link	pending
R118.htm	Edgar Link	pending
R119.htm	Edgar Link	pending
R12.htm	Edgar Link	pending
R120.htm	Edgar Link	pending
R121.htm	Edgar Link	pending
R122.htm	Edgar Link	pending
R123.htm	Edgar Link	pending
R124.htm	Edgar Link	pending
R125.htm	Edgar Link	pending
R126.htm	Edgar Link	pending
R127.htm	Edgar Link	pending
R128.htm	Edgar Link	pending
R129.htm	Edgar Link	pending
R13.htm	Edgar Link	pending
R130.htm	Edgar Link	pending
R131.htm	Edgar Link	pending
R132.htm	Edgar Link	pending
R133.htm	Edgar Link	pending
R134.htm	Edgar Link	pending
R135.htm	Edgar Link	pending
R136.htm	Edgar Link	pending
R137.htm	Edgar Link	pending
R138.htm	Edgar Link	pending
R14.htm	Edgar Link	pending
R15.htm	Edgar Link	pending
R16.htm	Edgar Link	pending
R17.htm	Edgar Link	pending
R18.htm	Edgar Link	pending
R19.htm	Edgar Link	pending
R2.htm	Edgar Link	pending
R20.htm	Edgar Link	pending
R21.htm	Edgar Link	pending
R22.htm	Edgar Link	pending
R23.htm	Edgar Link	pending
R24.htm	Edgar Link	pending
R25.htm	Edgar Link	pending
R26.htm	Edgar Link	pending
R27.htm	Edgar Link	pending
R28.htm	Edgar Link	pending
R29.htm	Edgar Link	pending
R3.htm	Edgar Link	pending
R30.htm	Edgar Link	pending
R31.htm	Edgar Link	pending
R32.htm	Edgar Link	pending
R33.htm	Edgar Link	pending
R34.htm	Edgar Link	pending
R35.htm	Edgar Link	pending
R36.htm	Edgar Link	pending
R37.htm	Edgar Link	pending
R38.htm	Edgar Link	pending
R39.htm	Edgar Link	pending
R4.htm	Edgar Link	pending
R40.htm	Edgar Link	pending
R41.htm	Edgar Link	pending
R42.htm	Edgar Link	pending
R43.htm	Edgar Link	pending
R44.htm	Edgar Link	pending
R45.htm	Edgar Link	pending
R46.htm	Edgar Link	pending
R47.htm	Edgar Link	pending
R48.htm	Edgar Link	pending
R49.htm	Edgar Link	pending
R5.htm	Edgar Link	pending
R50.htm	Edgar Link	pending
R51.htm	Edgar Link	pending
R52.htm	Edgar Link	pending
R53.htm	Edgar Link	pending
R54.htm	Edgar Link	pending
R55.htm	Edgar Link	pending
R56.htm	Edgar Link	pending
R57.htm	Edgar Link	pending
R58.htm	Edgar Link	pending
R59.htm	Edgar Link	pending
R6.htm	Edgar Link	pending
R60.htm	Edgar Link	pending
R61.htm	Edgar Link	pending
R62.htm	Edgar Link	pending
R63.htm	Edgar Link	pending
R64.htm	Edgar Link	pending
R65.htm	Edgar Link	pending
R66.htm	Edgar Link	pending
R67.htm	Edgar Link	pending
R68.htm	Edgar Link	pending
R69.htm	Edgar Link	pending
R7.htm	Edgar Link	pending
R70.htm	Edgar Link	pending
R71.htm	Edgar Link	pending
R72.htm	Edgar Link	pending
R73.htm	Edgar Link	pending
R74.htm	Edgar Link	pending
R75.htm	Edgar Link	pending
R76.htm	Edgar Link	pending
R77.htm	Edgar Link	pending
R78.htm	Edgar Link	pending
R79.htm	Edgar Link	pending
R8.htm	Edgar Link	pending
R80.htm	Edgar Link	pending
R81.htm	Edgar Link	pending
R82.htm	Edgar Link	pending
R83.htm	Edgar Link	pending
R84.htm	Edgar Link	pending
R85.htm	Edgar Link	pending
R86.htm	Edgar Link	pending
R87.htm	Edgar Link	pending
R88.htm	Edgar Link	pending
R89.htm	Edgar Link	pending
R9.htm	Edgar Link	pending
R90.htm	Edgar Link	pending
R91.htm	Edgar Link	pending
R92.htm	Edgar Link	pending
R93.htm	Edgar Link	pending
R94.htm	Edgar Link	pending
R95.htm	Edgar Link	pending
R96.htm	Edgar Link	pending
R97.htm	Edgar Link	pending
R98.htm	Edgar Link	pending
R99.htm	Edgar Link	pending
report.css	Edgar Link	pending
Show.js	Edgar Link	pending
tcbk-20180630.xml	Edgar Link	completed
tcbk-20180630.xsd	Edgar Link	pending
tcbk-20180630_cal.xml	Edgar Link	unprocessable
tcbk-20180630_def.xml	Edgar Link	unprocessable
tcbk-20180630_lab.xml	Edgar Link	unprocessable
tcbk-20180630_pre.xml	Edgar Link	unprocessable

Create your account

Find Stocks Worth Researching

Deeply Understand Businesses

Value Businesses Intelligently

$TCBK
Trico Bancshares Stock $tcbk

2018 Q2 Form 10-Q Financial Statement

#000119312518244470 Filed on August 09, 2018

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$TCBK Trico Bancshares Stock $tcbk

2018 Q2 Form 10-Q Financial Statement

#000119312518244470 Filed on August 09, 2018

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$TCBK
Trico Bancshares Stock $tcbk