2019 Q4 Form 10-K Financial Statement
#000156459021013158 Filed on March 15, 2021
Income Statement
Concept | 2019 Q4 | 2018 Q4 | 2018 |
---|---|---|---|
Revenue | $152.7M | ||
YoY Change | 17.39% | ||
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 | $1.990M | $1.620M | $6.480M |
YoY Change | 22.84% | 3.18% | 4.85% |
% of Gross Profit | |||
Operating Expenses | |||
YoY Change | |||
Operating Profit | |||
YoY Change | |||
Interest Expense | $29.87M | ||
YoY Change | 70.72% | ||
% of Operating Profit | |||
Other Income/Expense, Net | |||
YoY Change | |||
Pretax Income | $13.42M | $9.690M | $49.53M |
YoY Change | 38.49% | -16.75% | 13.94% |
Income Tax | $310.0K | $2.200M | $10.01M |
% Of Pretax Income | 2.31% | 22.7% | 20.2% |
Net Earnings | $13.11M | $7.490M | $39.53M |
YoY Change | 75.03% | -32.28% | 17.9% |
Net Earnings / Revenue | 25.88% | ||
Basic Earnings Per Share | $2.39 | ||
Diluted Earnings Per Share | $815.8K | $469.0K | $2.39 |
COMMON SHARES | |||
Basic Shares Outstanding | 15.92M | 15.91M | |
Diluted Shares Outstanding | 15.96M |
Balance Sheet
Concept | 2019 Q4 | 2018 Q4 | 2018 |
---|---|---|---|
SHORT-TERM ASSETS | |||
Cash & Short-Term Investments | |||
YoY Change | |||
Cash & Equivalents | $112.9M | $102.8M | |
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 | $41.42M | $42.84M | $42.80M |
YoY Change | -3.3% | -5.2% | -5.31% |
Goodwill | $66.06M | $66.06M | |
YoY Change | 0.0% | 0.34% | |
Intangibles | |||
YoY Change | |||
Long-Term Investments | |||
YoY Change | |||
Other Assets | $7.900M | ||
YoY Change | -236.21% | ||
Total Long-Term Assets | |||
YoY Change | |||
TOTAL ASSETS | |||
Total Short-Term Assets | |||
Total Long-Term Assets | |||
Total Assets | $4.384B | $4.312B | $4.312B |
YoY Change | 1.68% | 5.03% | 5.03% |
SHORT-TERM LIABILITIES | |||
YoY Change | |||
Accounts Payable | |||
YoY Change | |||
Accrued Expenses | $22.80M | ||
YoY Change | |||
Deferred Revenue | |||
YoY Change | |||
Short-Term Debt | $275.5M | $469.5M | $64.00M |
YoY Change | -41.32% | 5.22% | |
Long-Term Debt Due | |||
YoY Change | |||
Total Short-Term Liabilities | $22.80M | $64.00M | $64.00M |
YoY Change | -64.38% | ||
LONG-TERM LIABILITIES | |||
Long-Term Debt | $39.30M | $39.20M | $39.20M |
YoY Change | 0.26% | 0.26% | 0.26% |
Other Long-Term Liabilities | $52.00M | $39.80M | $39.80M |
YoY Change | 30.65% | 39.65% | 39.65% |
Total Long-Term Liabilities | $91.30M | $79.00M | $79.00M |
YoY Change | 15.57% | 16.86% | 16.86% |
TOTAL LIABILITIES | |||
Total Short-Term Liabilities | $22.80M | $64.00M | $64.00M |
Total Long-Term Liabilities | $91.30M | $79.00M | $79.00M |
Total Liabilities | $3.945B | $3.915B | $3.915B |
YoY Change | 0.76% | 5.14% | 5.14% |
SHAREHOLDERS EQUITY | |||
Retained Earnings | $313.4M | $279.9M | |
YoY Change | 11.97% | 8.86% | |
Common Stock | $161.0K | $161.0K | |
YoY Change | 0.0% | 0.0% | |
Preferred Stock | |||
YoY Change | |||
Treasury Stock (at cost) | $1.975M | $2.486M | |
YoY Change | -20.56% | -1.86% | |
Treasury Stock Shares | $96.66K | $127.6K | |
Shareholders Equity | $438.9M | $396.3M | $396.3M |
YoY Change | |||
Total Liabilities & Shareholders Equity | $4.384B | $4.312B | $4.312B |
YoY Change | 1.68% | 5.03% | 5.03% |
Cashflow Statement
Concept | 2019 Q4 | 2018 Q4 | 2018 |
---|---|---|---|
OPERATING ACTIVITIES | |||
Net Income | $13.11M | $7.490M | $39.53M |
YoY Change | 75.03% | -32.28% | 17.9% |
Depreciation, Depletion And Amortization | $1.990M | $1.620M | $6.480M |
YoY Change | 22.84% | 3.18% | 4.85% |
Cash From Operating Activities | $16.55M | $14.33M | $65.14M |
YoY Change | 15.49% | 31.83% | 40.75% |
INVESTING ACTIVITIES | |||
Capital Expenditures | -$1.270M | -$840.0K | $2.842M |
YoY Change | 51.19% | 9.09% | -63.28% |
Acquisitions | $4.447M | ||
YoY Change | 557.84% | ||
Other Investing Activities | -$68.27M | -$66.36M | -$590.0K |
YoY Change | 2.88% | -14.7% | 152.14% |
Cash From Investing Activities | -$69.54M | -$67.20M | -$225.4M |
YoY Change | 3.48% | -14.47% | -39.51% |
FINANCING ACTIVITIES | |||
Cash Dividend Paid | |||
YoY Change | |||
Common Stock Issuance & Retirement, Net | $113.0K | ||
YoY Change | -100.3% | ||
Debt Paid & Issued, Net | |||
YoY Change | |||
Cash From Financing Activities | 29.12M | 38.29M | 163.8M |
YoY Change | -23.95% | -44.56% | -53.75% |
NET CHANGE | |||
Cash From Operating Activities | 16.55M | 14.33M | 65.14M |
Cash From Investing Activities | -69.54M | -67.20M | -225.4M |
Cash From Financing Activities | 29.12M | 38.29M | 163.8M |
Net Change In Cash | -23.87M | -14.58M | 3.560M |
YoY Change | 63.72% | -1172.06% | -87.25% |
FREE CASH FLOW | |||
Cash From Operating Activities | $16.55M | $14.33M | $65.14M |
Capital Expenditures | -$1.270M | -$840.0K | $2.842M |
Free Cash Flow | $17.82M | $15.17M | $62.30M |
YoY Change | 17.47% | 30.33% | 61.65% |
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|
2.97 | |
CY2018 | us-gaap |
Earnings Per Share Basic
EarningsPerShareBasic
|
2.39 | |
CY2020 | us-gaap |
Earnings Per Share Diluted
EarningsPerShareDiluted
|
2.30 | |
CY2019 | us-gaap |
Earnings Per Share Diluted
EarningsPerShareDiluted
|
2.96 | |
CY2018 | us-gaap |
Earnings Per Share Diluted
EarningsPerShareDiluted
|
2.39 | |
CY2020 | us-gaap |
Common Stock Dividends Per Share Declared
CommonStockDividendsPerShareDeclared
|
1.04 | |
CY2019 | us-gaap |
Common Stock Dividends Per Share Declared
CommonStockDividendsPerShareDeclared
|
1.00 | |
CY2018 | us-gaap |
Common Stock Dividends Per Share Declared
CommonStockDividendsPerShareDeclared
|
0.96 | |
CY2020 | us-gaap |
Weighted Average Number Of Shares Outstanding Basic
WeightedAverageNumberOfSharesOutstandingBasic
|
16022000 | |
CY2019 | us-gaap |
Weighted Average Number Of Shares Outstanding Basic
WeightedAverageNumberOfSharesOutstandingBasic
|
15972000 | |
CY2018 | us-gaap |
Weighted Average Number Of Shares Outstanding Basic
WeightedAverageNumberOfSharesOutstandingBasic
|
15910000 | |
CY2020 | us-gaap |
Weighted Average Number Of Diluted Shares Outstanding
WeightedAverageNumberOfDilutedSharesOutstanding
|
16063000 | |
CY2019 | us-gaap |
Weighted Average Number Of Diluted Shares Outstanding
WeightedAverageNumberOfDilutedSharesOutstanding
|
16031000 | |
CY2018 | us-gaap |
Weighted Average Number Of Diluted Shares Outstanding
WeightedAverageNumberOfDilutedSharesOutstanding
|
15956000 | |
CY2020 | us-gaap |
Other Comprehensive Income Loss Available For Sale Securities Adjustment Net Of Tax
OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax
|
13870000 | |
CY2019 | us-gaap |
Other Comprehensive Income Loss Available For Sale Securities Adjustment Net Of Tax
OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax
|
9323000 | |
CY2018 | us-gaap |
Other Comprehensive Income Loss Available For Sale Securities Adjustment Net Of Tax
OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax
|
-4494000 | |
CY2020 | us-gaap |
Other Comprehensive Income Loss Cash Flow Hedge Gain Loss After Reclassification And Tax
OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationAndTax
|
202000 | |
CY2019 | us-gaap |
Other Comprehensive Income Loss Cash Flow Hedge Gain Loss After Reclassification And Tax
OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationAndTax
|
-242000 | |
CY2018 | us-gaap |
Other Comprehensive Income Loss Cash Flow Hedge Gain Loss After Reclassification And Tax
OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationAndTax
|
-276000 | |
CY2020 | us-gaap |
Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Adjustment Net Of Tax
OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax
|
-2569000 | |
CY2019 | us-gaap |
Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Adjustment Net Of Tax
OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax
|
-470000 | |
CY2018 | us-gaap |
Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Adjustment Net Of Tax
OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax
|
4595000 | |
CY2020 | us-gaap |
Other Comprehensive Income Loss Net Of Tax
OtherComprehensiveIncomeLossNetOfTax
|
16641000 | |
CY2019 | us-gaap |
Other Comprehensive Income Loss Net Of Tax
OtherComprehensiveIncomeLossNetOfTax
|
9551000 | |
CY2018 | us-gaap |
Other Comprehensive Income Loss Net Of Tax
OtherComprehensiveIncomeLossNetOfTax
|
-9365000 | |
CY2020 | us-gaap |
Comprehensive Income Net Of Tax
ComprehensiveIncomeNetOfTax
|
54973000 | |
CY2019 | us-gaap |
Comprehensive Income Net Of Tax
ComprehensiveIncomeNetOfTax
|
58413000 | |
CY2018 | us-gaap |
Comprehensive Income Net Of Tax
ComprehensiveIncomeNetOfTax
|
30161000 | |
CY2017Q4 | us-gaap |
Stockholders Equity
StockholdersEquity
|
381177000 | |
CY2018 | us-gaap |
Net Income Loss
NetIncomeLoss
|
39526000 | |
CY2018 | us-gaap |
Other Comprehensive Income Loss Net Of Tax
OtherComprehensiveIncomeLossNetOfTax
|
-9365000 | |
CY2018 | us-gaap |
Treasury Stock Value Acquired Cost Method
TreasuryStockValueAcquiredCostMethod
|
113000 | |
CY2018 | us-gaap |
Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value
AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue
|
1301000 | |
CY2018 | us-gaap |
Stock Issued During Period Value Stock Options Exercised
StockIssuedDuringPeriodValueStockOptionsExercised
|
320000 | |
CY2018 | us-gaap |
Stock Granted During Period Value Sharebased Compensation
StockGrantedDuringPeriodValueSharebasedCompensation
|
185000 | |
CY2018 | us-gaap |
Dividends Common Stock Cash
DividendsCommonStockCash
|
15276000 | |
CY2018Q4 | us-gaap |
Stockholders Equity
StockholdersEquity
|
396293000 | |
CY2019 | us-gaap |
Net Income Loss
NetIncomeLoss
|
48862000 | |
CY2019 | us-gaap |
Other Comprehensive Income Loss Net Of Tax
OtherComprehensiveIncomeLossNetOfTax
|
9551000 | |
CY2020Q4 | fisi |
Investment Securities Continuous Unrealized Loss Position Less Than12 Months Accumulated Loss
InvestmentSecuritiesContinuousUnrealizedLossPositionLessThan12MonthsAccumulatedLoss
|
68000 | |
CY2019Q4 | fisi |
Investment Securities Continuous Unrealized Loss Position Less Than Twelve Months Fair Value
InvestmentSecuritiesContinuousUnrealizedLossPositionLessThanTwelveMonthsFairValue
|
178723000 | |
CY2019Q4 | fisi |
Investment Securities Continuous Unrealized Loss Position Less Than12 Months Accumulated Loss
InvestmentSecuritiesContinuousUnrealizedLossPositionLessThan12MonthsAccumulatedLoss
|
1595000 | |
CY2019 | us-gaap |
Stock Issued During Period Value New Issues
StockIssuedDuringPeriodValueNewIssues
|
1151000 | |
CY2019 | us-gaap |
Treasury Stock Value Acquired Cost Method
TreasuryStockValueAcquiredCostMethod
|
293000 | |
CY2019 | us-gaap |
Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value
AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue
|
1406000 | |
CY2019 | us-gaap |
Stock Granted During Period Value Sharebased Compensation
StockGrantedDuringPeriodValueSharebasedCompensation
|
125000 | |
CY2019 | us-gaap |
Common Stock Dividends Per Share Declared
CommonStockDividendsPerShareDeclared
|
1.00 | |
CY2019 | us-gaap |
Dividends Common Stock Cash
DividendsCommonStockCash
|
15977000 | |
CY2019Q4 | us-gaap |
Stockholders Equity
StockholdersEquity
|
438947000 | |
CY2019Q4 | us-gaap |
Stockholders Equity
StockholdersEquity
|
438947000 | |
CY2020 | us-gaap |
Net Income Loss
NetIncomeLoss
|
38332000 | |
CY2020 | us-gaap |
Other Comprehensive Income Loss Net Of Tax
OtherComprehensiveIncomeLossNetOfTax
|
16641000 | |
CY2020 | us-gaap |
Treasury Stock Value Acquired Cost Method
TreasuryStockValueAcquiredCostMethod
|
209000 | |
CY2020 | us-gaap |
Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value
AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue
|
1333000 | |
CY2020 | us-gaap |
Stock Granted During Period Value Sharebased Compensation
StockGrantedDuringPeriodValueSharebasedCompensation
|
165000 | |
CY2020 | us-gaap |
Common Stock Dividends Per Share Declared
CommonStockDividendsPerShareDeclared
|
1.04 | |
CY2020 | us-gaap |
Dividends Common Stock Cash
DividendsCommonStockCash
|
16666000 | |
CY2020Q4 | us-gaap |
Stockholders Equity
StockholdersEquity
|
468363000 | |
CY2020 | us-gaap |
Profit Loss
ProfitLoss
|
38332000 | |
CY2019 | us-gaap |
Profit Loss
ProfitLoss
|
48862000 | |
CY2018 | us-gaap |
Profit Loss
ProfitLoss
|
39526000 | |
CY2020 | us-gaap |
Depreciation And Amortization
DepreciationAndAmortization
|
7893000 | |
CY2019 | us-gaap |
Depreciation And Amortization
DepreciationAndAmortization
|
8213000 | |
CY2018 | us-gaap |
Depreciation And Amortization
DepreciationAndAmortization
|
6477000 | |
CY2020 | us-gaap |
Accretion Amortization Of Discounts And Premiums Investments
AccretionAmortizationOfDiscountsAndPremiumsInvestments
|
-3474000 | |
CY2019 | us-gaap |
Accretion Amortization Of Discounts And Premiums Investments
AccretionAmortizationOfDiscountsAndPremiumsInvestments
|
-2069000 | |
CY2018 | us-gaap |
Accretion Amortization Of Discounts And Premiums Investments
AccretionAmortizationOfDiscountsAndPremiumsInvestments
|
-2456000 | |
CY2020 | fisi |
Provision For Credit Losses
ProvisionForCreditLosses
|
27184000 | |
CY2019 | fisi |
Provision For Credit Losses
ProvisionForCreditLosses
|
8044000 | |
CY2018 | fisi |
Provision For Credit Losses
ProvisionForCreditLosses
|
8934000 | |
CY2020 | us-gaap |
Share Based Compensation
ShareBasedCompensation
|
1333000 | |
CY2019 | us-gaap |
Share Based Compensation
ShareBasedCompensation
|
1406000 | |
CY2018 | us-gaap |
Share Based Compensation
ShareBasedCompensation
|
1301000 | |
CY2020 | us-gaap |
Deferred Income Tax Expense Benefit
DeferredIncomeTaxExpenseBenefit
|
-4523000 | |
CY2019 | us-gaap |
Deferred Income Tax Expense Benefit
DeferredIncomeTaxExpenseBenefit
|
369000 | |
CY2018 | us-gaap |
Deferred Income Tax Expense Benefit
DeferredIncomeTaxExpenseBenefit
|
-10480000 | |
CY2020 | us-gaap |
Proceeds From Sale Of Loans Held For Sale
ProceedsFromSaleOfLoansHeldForSale
|
97238000 | |
CY2019 | us-gaap |
Proceeds From Sale Of Loans Held For Sale
ProceedsFromSaleOfLoansHeldForSale
|
41479000 | |
CY2018 | us-gaap |
Proceeds From Sale Of Loans Held For Sale
ProceedsFromSaleOfLoansHeldForSale
|
30547000 | |
CY2020 | us-gaap |
Payments For Origination And Purchases Of Loans Held For Sale
PaymentsForOriginationAndPurchasesOfLoansHeldForSale
|
93461000 | |
CY2019 | us-gaap |
Payments For Origination And Purchases Of Loans Held For Sale
PaymentsForOriginationAndPurchasesOfLoansHeldForSale
|
41626000 | |
CY2018 | us-gaap |
Payments For Origination And Purchases Of Loans Held For Sale
PaymentsForOriginationAndPurchasesOfLoansHeldForSale
|
29901000 | |
CY2020 | us-gaap |
Bank Owned Life Insurance Income
BankOwnedLifeInsuranceIncome
|
1902000 | |
CY2019 | us-gaap |
Bank Owned Life Insurance Income
BankOwnedLifeInsuranceIncome
|
1758000 | |
CY2018 | us-gaap |
Bank Owned Life Insurance Income
BankOwnedLifeInsuranceIncome
|
1793000 | |
CY2020 | us-gaap |
Gain Loss On Sales Of Loans Net
GainLossOnSalesOfLoansNet
|
3858000 | |
CY2019 | us-gaap |
Gain Loss On Sales Of Loans Net
GainLossOnSalesOfLoansNet
|
1352000 | |
CY2018 | us-gaap |
Gain Loss On Sales Of Loans Net
GainLossOnSalesOfLoansNet
|
796000 | |
CY2020 | us-gaap |
Debt And Equity Securities Gain Loss
DebtAndEquitySecuritiesGainLoss
|
1599000 | |
CY2019 | us-gaap |
Debt And Equity Securities Gain Loss
DebtAndEquitySecuritiesGainLoss
|
1677000 | |
CY2018 | us-gaap |
Debt And Equity Securities Gain Loss
DebtAndEquitySecuritiesGainLoss
|
-127000 | |
CY2018 | us-gaap |
Goodwill Impairment Loss
GoodwillImpairmentLoss
|
2350000 | |
CY2020 | us-gaap |
Gain Loss On Sale Of Other Assets
GainLossOnSaleOfOtherAssets
|
-61000 | |
CY2019 | us-gaap |
Gain Loss On Sale Of Other Assets
GainLossOnSaleOfOtherAssets
|
29000 | |
CY2018 | us-gaap |
Gain Loss On Sale Of Other Assets
GainLossOnSaleOfOtherAssets
|
50000 | |
CY2020 | fisi |
Noncash Restructuring Charges Against Assets
NoncashRestructuringChargesAgainstAssets
|
202000 | |
CY2020 | us-gaap |
Increase Decrease In Other Operating Assets
IncreaseDecreaseInOtherOperatingAssets
|
37565000 | |
CY2019 | us-gaap |
Increase Decrease In Other Operating Assets
IncreaseDecreaseInOtherOperatingAssets
|
21263000 | |
CY2018 | us-gaap |
Increase Decrease In Other Operating Assets
IncreaseDecreaseInOtherOperatingAssets
|
-13376000 | |
CY2020 | us-gaap |
Increase Decrease In Other Operating Liabilities
IncreaseDecreaseInOtherOperatingLiabilities
|
10646000 | |
CY2019 | us-gaap |
Increase Decrease In Other Operating Liabilities
IncreaseDecreaseInOtherOperatingLiabilities
|
14973000 | |
CY2018 | us-gaap |
Increase Decrease In Other Operating Liabilities
IncreaseDecreaseInOtherOperatingLiabilities
|
3065000 | |
CY2020 | us-gaap |
Net Cash Provided By Used In Operating Activities
NetCashProvidedByUsedInOperatingActivities
|
43455000 | |
CY2019 | us-gaap |
Net Cash Provided By Used In Operating Activities
NetCashProvidedByUsedInOperatingActivities
|
57710000 | |
CY2018 | us-gaap |
Net Cash Provided By Used In Operating Activities
NetCashProvidedByUsedInOperatingActivities
|
65139000 | |
CY2020 | us-gaap |
Payments To Acquire Available For Sale Securities Debt
PaymentsToAcquireAvailableForSaleSecuritiesDebt
|
396879000 | |
CY2019 | us-gaap |
Payments To Acquire Available For Sale Securities Debt
PaymentsToAcquireAvailableForSaleSecuritiesDebt
|
195660000 | |
CY2018 | us-gaap |
Payments To Acquire Available For Sale Securities Debt
PaymentsToAcquireAvailableForSaleSecuritiesDebt
|
44919000 | |
CY2020 | us-gaap |
Payments To Acquire Held To Maturity Securities
PaymentsToAcquireHeldToMaturitySecurities
|
7345000 | |
CY2019 | us-gaap |
Payments To Acquire Held To Maturity Securities
PaymentsToAcquireHeldToMaturitySecurities
|
23494000 | |
CY2018 | us-gaap |
Payments To Acquire Held To Maturity Securities
PaymentsToAcquireHeldToMaturitySecurities
|
28017000 | |
CY2020 | us-gaap |
Proceeds From Maturities Prepayments And Calls Of Available For Sale Securities
ProceedsFromMaturitiesPrepaymentsAndCallsOfAvailableForSaleSecurities
|
97685000 | |
CY2019 | us-gaap |
Proceeds From Maturities Prepayments And Calls Of Available For Sale Securities
ProceedsFromMaturitiesPrepaymentsAndCallsOfAvailableForSaleSecurities
|
82358000 | |
CY2018 | us-gaap |
Proceeds From Maturities Prepayments And Calls Of Available For Sale Securities
ProceedsFromMaturitiesPrepaymentsAndCallsOfAvailableForSaleSecurities
|
90114000 | |
CY2020 | us-gaap |
Proceeds From Maturities Prepayments And Calls Of Held To Maturity Securities
ProceedsFromMaturitiesPrepaymentsAndCallsOfHeldToMaturitySecurities
|
93046000 | |
CY2019 | us-gaap |
Proceeds From Maturities Prepayments And Calls Of Held To Maturity Securities
ProceedsFromMaturitiesPrepaymentsAndCallsOfHeldToMaturitySecurities
|
83508000 | |
CY2018 | us-gaap |
Proceeds From Maturities Prepayments And Calls Of Held To Maturity Securities
ProceedsFromMaturitiesPrepaymentsAndCallsOfHeldToMaturitySecurities
|
96211000 | |
CY2020 | us-gaap |
Proceeds From Sale Of Available For Sale Securities Debt
ProceedsFromSaleOfAvailableForSaleSecuritiesDebt
|
107098000 | |
CY2019 | us-gaap |
Proceeds From Sale Of Available For Sale Securities Debt
ProceedsFromSaleOfAvailableForSaleSecuritiesDebt
|
178059000 | |
CY2018 | us-gaap |
Proceeds From Sale Of Available For Sale Securities Debt
ProceedsFromSaleOfAvailableForSaleSecuritiesDebt
|
29851000 | |
CY2020 | us-gaap |
Proceeds From Sale Of Held To Maturity Securities
ProceedsFromSaleOfHeldToMaturitySecurities
|
52000 | |
CY2020 | us-gaap |
Payments For Proceeds From Loans And Leases
PaymentsForProceedsFromLoansAndLeases
|
390932000 | |
CY2019 | us-gaap |
Payments For Proceeds From Loans And Leases
PaymentsForProceedsFromLoansAndLeases
|
167234000 | |
CY2018 | us-gaap |
Payments For Proceeds From Loans And Leases
PaymentsForProceedsFromLoansAndLeases
|
361915000 | |
CY2019 | fisi |
Proceeds From Loans Sold To Others
ProceedsFromLoansSoldToOthers
|
21077000 | |
CY2020 | us-gaap |
Payments For Proceeds From Life Insurance Policies
PaymentsForProceedsFromLifeInsurancePolicies
|
30051000 | |
CY2019 | us-gaap |
Payments For Proceeds From Life Insurance Policies
PaymentsForProceedsFromLifeInsurancePolicies
|
68000 | |
CY2018 | us-gaap |
Payments For Proceeds From Life Insurance Policies
PaymentsForProceedsFromLifeInsurancePolicies
|
35000 | |
CY2020 | us-gaap |
Payments For Proceeds From Other Investing Activities
PaymentsForProceedsFromOtherInvestingActivities
|
-519000 | |
CY2019 | us-gaap |
Payments For Proceeds From Other Investing Activities
PaymentsForProceedsFromOtherInvestingActivities
|
-360000 | |
CY2018 | us-gaap |
Payments For Proceeds From Other Investing Activities
PaymentsForProceedsFromOtherInvestingActivities
|
-590000 | |
CY2020 | us-gaap |
Payments To Acquire Property Plant And Equipment
PaymentsToAcquirePropertyPlantAndEquipment
|
4264000 | |
CY2019 | us-gaap |
Payments To Acquire Property Plant And Equipment
PaymentsToAcquirePropertyPlantAndEquipment
|
3639000 | |
CY2018 | us-gaap |
Payments To Acquire Property Plant And Equipment
PaymentsToAcquirePropertyPlantAndEquipment
|
2842000 | |
CY2018 | us-gaap |
Payments To Acquire Businesses Net Of Cash Acquired
PaymentsToAcquireBusinessesNetOfCashAcquired
|
4447000 | |
CY2020 | us-gaap |
Net Cash Provided By Used In Investing Activities
NetCashProvidedByUsedInInvestingActivities
|
-531071000 | |
CY2019 | us-gaap |
Net Cash Provided By Used In Investing Activities
NetCashProvidedByUsedInInvestingActivities
|
-24733000 | |
CY2018 | us-gaap |
Net Cash Provided By Used In Investing Activities
NetCashProvidedByUsedInInvestingActivities
|
-225409000 | |
CY2020 | us-gaap |
Increase Decrease In Deposits
IncreaseDecreaseInDeposits
|
722692000 | |
CY2019 | us-gaap |
Increase Decrease In Deposits
IncreaseDecreaseInDeposits
|
188768000 | |
CY2018 | us-gaap |
Increase Decrease In Deposits
IncreaseDecreaseInDeposits
|
156733000 | |
CY2020 | us-gaap |
Proceeds From Repayments Of Short Term Debt
ProceedsFromRepaymentsOfShortTermDebt
|
-270200000 | |
CY2019 | us-gaap |
Proceeds From Repayments Of Short Term Debt
ProceedsFromRepaymentsOfShortTermDebt
|
-194000000 | |
CY2018 | us-gaap |
Proceeds From Repayments Of Short Term Debt
ProceedsFromRepaymentsOfShortTermDebt
|
23300000 | |
CY2018 | us-gaap |
Payments For Repurchase Of Preferred Stock And Preference Stock
PaymentsForRepurchaseOfPreferredStockAndPreferenceStock
|
1000 | |
CY2020 | us-gaap |
Proceeds From Issuance Of Long Term Debt
ProceedsFromIssuanceOfLongTermDebt
|
35000000 | |
CY2020 | us-gaap |
Payments Of Debt Issuance Costs
PaymentsOfDebtIssuanceCosts
|
779000 | |
CY2020 | us-gaap |
Payments For Repurchase Of Common Stock
PaymentsForRepurchaseOfCommonStock
|
209000 | |
CY2019 | us-gaap |
Payments For Repurchase Of Common Stock
PaymentsForRepurchaseOfCommonStock
|
293000 | |
CY2018 | us-gaap |
Payments For Repurchase Of Common Stock
PaymentsForRepurchaseOfCommonStock
|
113000 | |
CY2018 | us-gaap |
Proceeds From Stock Options Exercised
ProceedsFromStockOptionsExercised
|
320000 | |
CY2020 | us-gaap |
Payments Of Dividends Preferred Stock And Preference Stock
PaymentsOfDividendsPreferredStockAndPreferenceStock
|
1461000 | |
CY2019 | us-gaap |
Payments Of Dividends Preferred Stock And Preference Stock
PaymentsOfDividendsPreferredStockAndPreferenceStock
|
1461000 | |
CY2018 | us-gaap |
Payments Of Dividends Preferred Stock And Preference Stock
PaymentsOfDividendsPreferredStockAndPreferenceStock
|
1462000 | |
CY2020 | us-gaap |
Payments Of Dividends Common Stock
PaymentsOfDividendsCommonStock
|
16496000 | |
CY2019 | us-gaap |
Payments Of Dividends Common Stock
PaymentsOfDividendsCommonStock
|
15799000 | |
CY2018 | us-gaap |
Payments Of Dividends Common Stock
PaymentsOfDividendsCommonStock
|
14947000 | |
CY2020 | us-gaap |
Net Cash Provided By Used In Financing Activities
NetCashProvidedByUsedInFinancingActivities
|
468547000 | |
CY2019 | us-gaap |
Net Cash Provided By Used In Financing Activities
NetCashProvidedByUsedInFinancingActivities
|
-22785000 | |
CY2018 | us-gaap |
Net Cash Provided By Used In Financing Activities
NetCashProvidedByUsedInFinancingActivities
|
163830000 | |
CY2020 | us-gaap |
Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect
CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect
|
-19069000 | |
CY2019 | us-gaap |
Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect
CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect
|
10192000 | |
CY2018 | us-gaap |
Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect
CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect
|
3560000 | |
CY2019Q4 | us-gaap |
Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Including Disposal Group And Discontinued Operations
CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations
|
112947000 | |
CY2018Q4 | us-gaap |
Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Including Disposal Group And Discontinued Operations
CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations
|
102755000 | |
CY2017Q4 | us-gaap |
Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Including Disposal Group And Discontinued Operations
CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations
|
99195000 | |
CY2020 | us-gaap |
Use Of Estimates
UseOfEstimates
|
<p style="text-align:justify;margin-bottom:0pt;margin-top:12pt;margin-left:3.33%;text-indent:0%;font-weight:bold;font-style:italic;font-size:10pt;font-family:Times New Roman;text-transform:none;font-variant: normal;">(b.) Use of Estimates</p> <p style="text-align:justify;margin-bottom:0pt;margin-top:6pt;margin-left:3.33%;text-indent:0%;font-size:10pt;font-family:Times New Roman;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;">In preparing the consolidated financial statements in conformity with GAAP, management is required to make estimates and assumptions that affect the reported amount of assets and liabilities as of the date of the statement of financial condition and reported amounts of revenue and expenses during the reporting period. Material estimates relate to the determination of the allowance for credit losses, the carrying value of goodwill and deferred tax assets, and assumptions used in the defined benefit pension plan accounting. These estimates and assumptions are based on management’s best estimates and judgment and are evaluated on an ongoing basis using historical experience and other factors, including the current economic environment. The Company adjusts these estimates and assumptions when facts and circumstances dictate. As future events cannot be determined with precision, actual results could differ significantly from the Company’s estimates.</p> | |
CY2020 | us-gaap |
Interest Paid Net
InterestPaidNet
|
28875000 | |
CY2019 | us-gaap |
Interest Paid Net
InterestPaidNet
|
37225000 | |
CY2018 | us-gaap |
Interest Paid Net
InterestPaidNet
|
28626000 | |
CY2020 | us-gaap |
Income Taxes Paid Net
IncomeTaxesPaidNet
|
7462000 | |
CY2019 | us-gaap |
Income Taxes Paid Net
IncomeTaxesPaidNet
|
9853000 | |
CY2018 | us-gaap |
Income Taxes Paid Net
IncomeTaxesPaidNet
|
3527000 | |
CY2020 | us-gaap |
Transfer To Other Real Estate
TransferToOtherRealEstate
|
2966000 | |
CY2019 | us-gaap |
Transfer To Other Real Estate
TransferToOtherRealEstate
|
557000 | |
CY2018 | us-gaap |
Transfer To Other Real Estate
TransferToOtherRealEstate
|
642000 | |
CY2020Q4 | us-gaap |
Dividends Payable Current And Noncurrent
DividendsPayableCurrentAndNoncurrent
|
4535000 | |
CY2019Q4 | us-gaap |
Dividends Payable Current And Noncurrent
DividendsPayableCurrentAndNoncurrent
|
4365000 | |
CY2018Q4 | us-gaap |
Dividends Payable Current And Noncurrent
DividendsPayableCurrentAndNoncurrent
|
4187000 | |
CY2019 | fisi |
Decrease Increase In Net Unsettled Security Purchases
DecreaseIncreaseInNetUnsettledSecurityPurchases
|
-2650000 | |
CY2018 | fisi |
Decrease Increase In Net Unsettled Security Purchases
DecreaseIncreaseInNetUnsettledSecurityPurchases
|
2650000 | |
CY2019 | fisi |
Securities Transferred From Available For Sale To Held To Maturity To Available For Sale At Cost
SecuritiesTransferredFromAvailableForSaleToHeldToMaturityToAvailableForSaleAtCost
|
26175000 | |
CY2019 | us-gaap |
Stock Issued1
StockIssued1
|
1151000 | |
CY2018 | us-gaap |
Fair Value Of Assets Acquired
FairValueOfAssetsAcquired
|
2561000 | |
CY2018 | us-gaap |
Liabilities Assumed1
LiabilitiesAssumed1
|
128000 | |
CY2020 | fisi |
Days Past Due When Loans Are Generally Charged Off In Full In Days
DaysPastDueWhenLoansAreGenerallyChargedOffInFullInDays
|
P120D | |
CY2020 | fisi |
Number Of Identified Portfolio Segments
NumberOfIdentifiedPortfolioSegments
|
6 | |
CY2020 | fisi |
Number Of Designated Segments
NumberOfDesignatedSegments
|
6 | |
CY2020 | fisi |
Days Past Due When Loans Are Generally Placed On Nonaccrual Status In Days
DaysPastDueWhenLoansAreGenerallyPlacedOnNonaccrualStatusInDays
|
P90D | |
CY2020Q4 | us-gaap |
Other Real Estate
OtherRealEstate
|
3000000.0 | |
CY2019Q4 | us-gaap |
Other Real Estate
OtherRealEstate
|
468000 | |
CY2020Q4 | us-gaap |
Federal Home Loan Bank Stock
FederalHomeLoanBankStock
|
2600000 | |
CY2019Q4 | us-gaap |
Federal Home Loan Bank Stock
FederalHomeLoanBankStock
|
14600000 | |
CY2020Q4 | us-gaap |
Federal Reserve Bank Stock
FederalReserveBankStock
|
6100000 | |
CY2019Q4 | us-gaap |
Federal Reserve Bank Stock
FederalReserveBankStock
|
6100000 | |
CY2020Q3 | fisi |
Percentage Of Branch Network
PercentageOfBranchNetwork
|
0.10 | |
CY2020 | us-gaap |
Prior Period Reclassification Adjustment Description
PriorPeriodReclassificationAdjustmentDescription
|
<div style="align:left;"> <table border="0" cellpadding="0" cellspacing="0" style="border-collapse:collapse; width:100%;"> <tr> <td style="width:3.33%;white-space:nowrap" valign="top"> <p style="text-align:justify;margin-bottom:0pt;margin-top:0pt;font-weight:bold;font-size:10pt;font-family:Times New Roman;font-style:normal;text-transform:none;font-variant: normal;"><span style="font-weight:bold;font-size:10pt;font-family:Times New Roman;font-style:normal;text-transform:none;font-variant: normal;">(1.)</span></p></td> <td valign="top"> <p style="text-align:justify;margin-bottom:0pt;margin-top:0pt;font-weight:bold;font-style:normal;text-transform:none;font-variant: normal;font-family:Times New Roman;font-size:12pt;"><span style="font-weight:normal;"/><span style="font-size:10pt;">SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES </span><span style="Background-color:#FFFFFF;color:#000000;font-size:10pt;">(Continued)</span></p></td></tr></table></div> <p style="text-align:justify;margin-bottom:0pt;margin-top:12pt;margin-left:3.33%;text-indent:0%;font-weight:bold;font-style:italic;font-size:10pt;font-family:Times New Roman;text-transform:none;font-variant: normal;">(x.) Reclassifications</p> <p style="text-align:justify;margin-bottom:0pt;margin-top:6pt;margin-left:3.33%;text-indent:0%;font-size:10pt;font-family:Times New Roman;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;">Certain items in prior financial statements have been reclassified to conform to the current presentation. These reclassifications did not result in any changes to previously reported net income or shareholders’ equity.</p> | |
CY2020Q3 | fisi |
Number Of Bank Branch Closure
NumberOfBankBranchClosure
|
6 | |
CY2020Q3 | fisi |
Percentage Of Branch Network Impact
PercentageOfBranchNetworkImpact
|
0.06 | |
CY2020Q4 | fisi |
Number Of Additional Branches Planned To Close
NumberOfAdditionalBranchesPlannedToClose
|
1 | |
CY2020 | fisi |
Pre Tax Expense Related Branch Closures
PreTaxExpenseRelatedBranchClosures
|
1700000 | |
CY2020 | us-gaap |
Effect On Future Cash Flows Amount
EffectOnFutureCashFlowsAmount
|
900000 | |
CY2020 | fisi |
Anticipates Annual Expense Savings Branch Closures
AnticipatesAnnualExpenseSavingsBranchClosures
|
2700000 | |
CY2020 | us-gaap |
Restructuring Costs
RestructuringCosts
|
1734000 | |
CY2020 | us-gaap |
Restructuring Costs
RestructuringCosts
|
1734000 | |
CY2020 | us-gaap |
Payments For Restructuring
PaymentsForRestructuring
|
287000 | |
CY2020 | fisi |
Noncash Restructuring Charges Against Assets
NoncashRestructuringChargesAgainstAssets
|
202000 | |
CY2020Q4 | us-gaap |
Restructuring Reserve
RestructuringReserve
|
1245000 | |
CY2020Q4 | us-gaap |
Available For Sale Debt Securities Amortized Cost Basis
AvailableForSaleDebtSecuritiesAmortizedCostBasis
|
607665000 | |
CY2020Q4 | us-gaap |
Available For Sale Debt Securities Accumulated Gross Unrealized Gain Before Tax
AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax
|
20462000 | |
CY2020Q4 | us-gaap |
Available For Sale Debt Securities Accumulated Gross Unrealized Loss Before Tax
AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax
|
68000 | |
CY2020Q4 | us-gaap |
Available For Sale Securities Debt Securities
AvailableForSaleSecuritiesDebtSecurities
|
628059000 | |
CY2020Q4 | us-gaap |
Held To Maturity Securities
HeldToMaturitySecurities
|
271973000 | |
CY2020Q4 | us-gaap |
Held To Maturity Securities Accumulated Unrecognized Holding Gain
HeldToMaturitySecuritiesAccumulatedUnrecognizedHoldingGain
|
10062000 | |
CY2020Q4 | us-gaap |
Held To Maturity Securities Fair Value
HeldToMaturitySecuritiesFairValue
|
282035000 | |
CY2020Q4 | fisi |
Allowance For Credit Losses Amortized Cost
AllowanceForCreditLossesAmortizedCost
|
-7000 | |
CY2020Q4 | fisi |
Held To Maturity Securities Net
HeldToMaturitySecuritiesNet
|
271966000 | |
CY2019Q4 | us-gaap |
Available For Sale Debt Securities Amortized Cost Basis
AvailableForSaleDebtSecuritiesAmortizedCostBasis
|
415852000 | |
CY2019Q4 | us-gaap |
Available For Sale Debt Securities Accumulated Gross Unrealized Gain Before Tax
AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax
|
3696000 | |
CY2019Q4 | us-gaap |
Available For Sale Debt Securities Accumulated Gross Unrealized Loss Before Tax
AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax
|
1631000 | |
CY2019Q4 | us-gaap |
Available For Sale Securities Debt Securities
AvailableForSaleSecuritiesDebtSecurities
|
417917000 | |
CY2019Q4 | us-gaap |
Held To Maturity Securities
HeldToMaturitySecurities
|
359000000 | |
CY2019Q4 | us-gaap |
Held To Maturity Securities Accumulated Unrecognized Holding Gain
HeldToMaturitySecuritiesAccumulatedUnrecognizedHoldingGain
|
4882000 | |
CY2019Q4 | us-gaap |
Held To Maturity Securities Accumulated Unrecognized Holding Loss
HeldToMaturitySecuritiesAccumulatedUnrecognizedHoldingLoss
|
623000 | |
CY2019Q4 | us-gaap |
Held To Maturity Securities Fair Value
HeldToMaturitySecuritiesFairValue
|
363259000 | |
CY2020Q4 | fisi |
Debt Securities Available For Sale And Held To Maturity Restricted
DebtSecuritiesAvailableForSaleAndHeldToMaturityRestricted
|
567400000 | |
CY2019Q4 | fisi |
Debt Securities Available For Sale And Held To Maturity Restricted
DebtSecuritiesAvailableForSaleAndHeldToMaturityRestricted
|
676900000 | |
CY2020 | us-gaap |
Interest Income Securities Taxable
InterestIncomeSecuritiesTaxable
|
14186000 | |
CY2019 | us-gaap |
Interest Income Securities Taxable
InterestIncomeSecuritiesTaxable
|
14382000 | |
CY2018 | us-gaap |
Interest Income Securities Taxable
InterestIncomeSecuritiesTaxable
|
16510000 | |
CY2020 | us-gaap |
Interest Income Securities Tax Exempt
InterestIncomeSecuritiesTaxExempt
|
3278000 | |
CY2019 | us-gaap |
Interest Income Securities Tax Exempt
InterestIncomeSecuritiesTaxExempt
|
4150000 | |
CY2018 | us-gaap |
Interest Income Securities Tax Exempt
InterestIncomeSecuritiesTaxExempt
|
5091000 | |
CY2020 | us-gaap |
Interest And Dividend Income Securities
InterestAndDividendIncomeSecurities
|
17464000 | |
CY2019 | us-gaap |
Interest And Dividend Income Securities
InterestAndDividendIncomeSecurities
|
18532000 | |
CY2018 | us-gaap |
Interest And Dividend Income Securities
InterestAndDividendIncomeSecurities
|
21601000 | |
CY2020 | us-gaap |
Proceeds From Sale Of Available For Sale Securities Debt
ProceedsFromSaleOfAvailableForSaleSecuritiesDebt
|
107098000 | |
CY2019 | us-gaap |
Proceeds From Sale Of Available For Sale Securities Debt
ProceedsFromSaleOfAvailableForSaleSecuritiesDebt
|
178059000 | |
CY2018 | us-gaap |
Proceeds From Sale Of Available For Sale Securities Debt
ProceedsFromSaleOfAvailableForSaleSecuritiesDebt
|
29851000 | |
CY2020 | us-gaap |
Debt Securities Available For Sale Realized Gain
DebtSecuritiesAvailableForSaleRealizedGain
|
1642000 | |
CY2019 | us-gaap |
Debt Securities Available For Sale Realized Gain
DebtSecuritiesAvailableForSaleRealizedGain
|
2391000 | |
CY2018 | us-gaap |
Debt Securities Available For Sale Realized Gain
DebtSecuritiesAvailableForSaleRealizedGain
|
73000 | |
CY2020 | us-gaap |
Debt Securities Available For Sale Realized Loss
DebtSecuritiesAvailableForSaleRealizedLoss
|
43000 | |
CY2019 | us-gaap |
Debt Securities Available For Sale Realized Loss
DebtSecuritiesAvailableForSaleRealizedLoss
|
714000 | |
CY2018 | us-gaap |
Debt Securities Available For Sale Realized Loss
DebtSecuritiesAvailableForSaleRealizedLoss
|
200000 | |
CY2020Q4 | us-gaap |
Available For Sale Securities Debt Maturities Within One Year Amortized Cost
AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearAmortizedCost
|
1907000 | |
CY2020Q4 | us-gaap |
Available For Sale Securities Debt Maturities Within One Year Fair Value
AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearFairValue
|
1920000 | |
CY2020Q4 | us-gaap |
Available For Sale Securities Debt Maturities After One Through Five Years Amortized Cost
AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughFiveYearsAmortizedCost
|
39712000 | |
CY2020Q4 | us-gaap |
Available For Sale Securities Debt Maturities After One Through Five Years Fair Value
AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughFiveYearsFairValue
|
41903000 | |
CY2020Q4 | us-gaap |
Available For Sale Securities Debt Maturities After Five Through Ten Years Amortized Cost
AvailableForSaleSecuritiesDebtMaturitiesAfterFiveThroughTenYearsAmortizedCost
|
159570000 | |
CY2020Q4 | us-gaap |
Available For Sale Securities Debt Maturities After Five Through Ten Years Fair Value
AvailableForSaleSecuritiesDebtMaturitiesAfterFiveThroughTenYearsFairValue
|
171036000 | |
CY2020Q4 | us-gaap |
Available For Sale Securities Debt Maturities After Ten Years Amortized Cost
AvailableForSaleSecuritiesDebtMaturitiesAfterTenYearsAmortizedCost
|
406476000 | |
CY2020Q4 | us-gaap |
Available For Sale Securities Debt Maturities After Ten Years Fair Value
AvailableForSaleSecuritiesDebtMaturitiesAfterTenYearsFairValue
|
413200000 | |
CY2020Q4 | us-gaap |
Available For Sale Debt Securities Amortized Cost Basis
AvailableForSaleDebtSecuritiesAmortizedCostBasis
|
607665000 | |
CY2020Q4 | us-gaap |
Available For Sale Securities Debt Securities
AvailableForSaleSecuritiesDebtSecurities
|
628059000 | |
CY2020Q4 | us-gaap |
Held To Maturity Securities Debt Maturities Within One Year Net Carrying Amount
HeldToMaturitySecuritiesDebtMaturitiesWithinOneYearNetCarryingAmount
|
47086000 | |
CY2020Q4 | us-gaap |
Held To Maturity Securities Debt Maturities Within One Year Fair Value
HeldToMaturitySecuritiesDebtMaturitiesWithinOneYearFairValue
|
47505000 | |
CY2020Q4 | us-gaap |
Held To Maturity Securities Debt Maturities After One Through Five Years Net Carrying Amount
HeldToMaturitySecuritiesDebtMaturitiesAfterOneThroughFiveYearsNetCarryingAmount
|
97363000 | |
CY2020Q4 | us-gaap |
Held To Maturity Securities Debt Maturities After One Through Five Years Fair Value
HeldToMaturitySecuritiesDebtMaturitiesAfterOneThroughFiveYearsFairValue
|
101311000 | |
CY2020Q4 | us-gaap |
Held To Maturity Securities Debt Maturities After Five Through Ten Years Net Carrying Amount
HeldToMaturitySecuritiesDebtMaturitiesAfterFiveThroughTenYearsNetCarryingAmount
|
17371000 | |
CY2020Q4 | us-gaap |
Held To Maturity Securities Debt Maturities After Five Through Ten Years Fair Value
HeldToMaturitySecuritiesDebtMaturitiesAfterFiveThroughTenYearsFairValue
|
18194000 | |
CY2020Q4 | us-gaap |
Held To Maturity Securities Debt Maturities After Ten Years Net Carrying Amount
HeldToMaturitySecuritiesDebtMaturitiesAfterTenYearsNetCarryingAmount
|
110153000 | |
CY2020Q4 | us-gaap |
Held To Maturity Securities Debt Maturities After Ten Years Fair Value
HeldToMaturitySecuritiesDebtMaturitiesAfterTenYearsFairValue
|
115025000 | |
CY2020Q4 | us-gaap |
Held To Maturity Securities
HeldToMaturitySecurities
|
271973000 | |
CY2020Q4 | us-gaap |
Held To Maturity Securities Fair Value
HeldToMaturitySecuritiesFairValue
|
282035000 | |
CY2020Q4 | us-gaap |
Debt Securities Available For Sale Continuous Unrealized Loss Position Less Than12 Months
DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12Months
|
29087000 | |
CY2020Q4 | us-gaap |
Debt Securities Available For Sale Continuous Unrealized Loss Position Less Than12 Months Accumulated Loss
DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12MonthsAccumulatedLoss
|
68000 | |
CY2020Q4 | us-gaap |
Debt Securities Available For Sale Continuous Unrealized Loss Position12 Months Or Longer
DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLonger
|
8000 | |
CY2020Q4 | us-gaap |
Debt Securities Available For Sale Unrealized Loss Position
DebtSecuritiesAvailableForSaleUnrealizedLossPosition
|
29095000 | |
CY2020Q4 | us-gaap |
Debt Securities Available For Sale Unrealized Loss Position Accumulated Loss
DebtSecuritiesAvailableForSaleUnrealizedLossPositionAccumulatedLoss
|
68000 | |
CY2020Q4 | fisi |
Investment Securities Continuous Unrealized Loss Position Less Than Twelve Months Fair Value
InvestmentSecuritiesContinuousUnrealizedLossPositionLessThanTwelveMonthsFairValue
|
29087000 | |
CY2020Q4 | fisi |
Investment Securities Continuous Unrealized Loss Position Twelve Months Or Longer Fair Value
InvestmentSecuritiesContinuousUnrealizedLossPositionTwelveMonthsOrLongerFairValue
|
8000 | |
CY2020Q4 | fisi |
Investment Securities Continuous Unrealized Loss Position Fair Value
InvestmentSecuritiesContinuousUnrealizedLossPositionFairValue
|
29095000 | |
CY2020Q4 | fisi |
Investment Securities Accumulated Unrecognized Holding Loss
InvestmentSecuritiesAccumulatedUnrecognizedHoldingLoss
|
68000 | |
CY2019Q4 | us-gaap |
Debt Securities Available For Sale Continuous Unrealized Loss Position Less Than12 Months
DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12Months
|
129206000 | |
CY2019Q4 | us-gaap |
Debt Securities Available For Sale Continuous Unrealized Loss Position Less Than12 Months Accumulated Loss
DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12MonthsAccumulatedLoss
|
1367000 | |
CY2019Q4 | us-gaap |
Debt Securities Available For Sale Continuous Unrealized Loss Position12 Months Or Longer
DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLonger
|
16613000 | |
CY2019Q4 | us-gaap |
Debt Securities Available For Sale Continuous Unrealized Loss Position12 Months Or Longer Accumulated Loss
DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLongerAccumulatedLoss
|
264000 | |
CY2019Q4 | us-gaap |
Debt Securities Available For Sale Unrealized Loss Position
DebtSecuritiesAvailableForSaleUnrealizedLossPosition
|
145819000 | |
CY2019Q4 | us-gaap |
Debt Securities Available For Sale Unrealized Loss Position Accumulated Loss
DebtSecuritiesAvailableForSaleUnrealizedLossPositionAccumulatedLoss
|
1631000 | |
CY2019Q4 | us-gaap |
Held To Maturity Securities Continuous Unrealized Loss Position Less Than Twelve Months Fair Value
HeldToMaturitySecuritiesContinuousUnrealizedLossPositionLessThanTwelveMonthsFairValue
|
49517000 | |
CY2019Q4 | us-gaap |
Held To Maturity Securities Continuous Unrealized Loss Position Less Than12 Months Accumulated Loss
HeldToMaturitySecuritiesContinuousUnrealizedLossPositionLessThan12MonthsAccumulatedLoss
|
228000 | |
CY2019Q4 | us-gaap |
Held To Maturity Securities Continuous Unrealized Loss Position Twelve Months Or Longer Fair Value
HeldToMaturitySecuritiesContinuousUnrealizedLossPositionTwelveMonthsOrLongerFairValue
|
30589000 | |
CY2019Q4 | us-gaap |
Held To Maturity Securities Continuous Unrealized Loss Position12 Months Or Longer Accumulated Loss
HeldToMaturitySecuritiesContinuousUnrealizedLossPosition12MonthsOrLongerAccumulatedLoss
|
395000 | |
CY2019Q4 | us-gaap |
Held To Maturity Securities Continuous Unrealized Loss Position Fair Value
HeldToMaturitySecuritiesContinuousUnrealizedLossPositionFairValue
|
80106000 | |
CY2019Q4 | us-gaap |
Held To Maturity Securities Accumulated Unrecognized Holding Loss
HeldToMaturitySecuritiesAccumulatedUnrecognizedHoldingLoss
|
623000 | |
CY2019Q4 | fisi |
Investment Securities Continuous Unrealized Loss Position Twelve Months Or Longer Fair Value
InvestmentSecuritiesContinuousUnrealizedLossPositionTwelveMonthsOrLongerFairValue
|
47202000 | |
CY2019Q4 | fisi |
Investment Securities Continuous Unrealized Loss Position12 Months Or Longer Accumulated Loss
InvestmentSecuritiesContinuousUnrealizedLossPosition12MonthsOrLongerAccumulatedLoss
|
659000 | |
CY2019Q4 | fisi |
Investment Securities Continuous Unrealized Loss Position Fair Value
InvestmentSecuritiesContinuousUnrealizedLossPositionFairValue
|
225925000 | |
CY2019Q4 | fisi |
Investment Securities Accumulated Unrecognized Holding Loss
InvestmentSecuritiesAccumulatedUnrecognizedHoldingLoss
|
2254000 | |
CY2020Q4 | fisi |
Investment Securities In Unrealized Loss Position Number Of Positions
InvestmentSecuritiesInUnrealizedLossPositionNumberOfPositions
|
8 | |
CY2019Q4 | fisi |
Investment Securities In Unrealized Loss Position Number Of Positions
InvestmentSecuritiesInUnrealizedLossPositionNumberOfPositions
|
91 | |
CY2020Q4 | fisi |
Investment Securities In Unrealized Loss Positions Twelve Months Or Longer Qualitative Disclosure Number Of Positions
InvestmentSecuritiesInUnrealizedLossPositionsTwelveMonthsOrLongerQualitativeDisclosureNumberOfPositions
|
1 | |
CY2020Q4 | fisi |
Investment Securities Continuous Unrealized Loss Position Twelve Months Or Longer Fair Value
InvestmentSecuritiesContinuousUnrealizedLossPositionTwelveMonthsOrLongerFairValue
|
8000 | |
CY2020Q4 | fisi |
Investment Securities In Unrealized Loss Positions Less Than Twelve Months Qualitative Disclosure Number Of Positions
InvestmentSecuritiesInUnrealizedLossPositionsLessThanTwelveMonthsQualitativeDisclosureNumberOfPositions
|
7 | |
CY2020Q4 | fisi |
Investment Securities Continuous Unrealized Loss Position Less Than Twelve Months Fair Value
InvestmentSecuritiesContinuousUnrealizedLossPositionLessThanTwelveMonthsFairValue
|
29100000 | |
CY2020Q4 | fisi |
Investment Securities Continuous Unrealized Loss Position Less Than12 Months Accumulated Loss
InvestmentSecuritiesContinuousUnrealizedLossPositionLessThan12MonthsAccumulatedLoss
|
68000 | |
CY2019Q4 | fisi |
Investment Securities In Unrealized Loss Positions Twelve Months Or Longer Qualitative Disclosure Number Of Positions
InvestmentSecuritiesInUnrealizedLossPositionsTwelveMonthsOrLongerQualitativeDisclosureNumberOfPositions
|
34 | |
CY2019Q4 | fisi |
Investment Securities Continuous Unrealized Loss Position Twelve Months Or Longer Fair Value
InvestmentSecuritiesContinuousUnrealizedLossPositionTwelveMonthsOrLongerFairValue
|
47200000 | |
CY2019Q4 | fisi |
Investment Securities Continuous Unrealized Loss Position12 Months Or Longer Accumulated Loss
InvestmentSecuritiesContinuousUnrealizedLossPosition12MonthsOrLongerAccumulatedLoss
|
659000 | |
CY2019Q4 | fisi |
Investment Securities In Unrealized Loss Positions Less Than Twelve Months Qualitative Disclosure Number Of Positions
InvestmentSecuritiesInUnrealizedLossPositionsLessThanTwelveMonthsQualitativeDisclosureNumberOfPositions
|
57 | |
CY2019Q4 | fisi |
Investment Securities Continuous Unrealized Loss Position Less Than Twelve Months Fair Value
InvestmentSecuritiesContinuousUnrealizedLossPositionLessThanTwelveMonthsFairValue
|
178700000 | |
CY2019Q4 | fisi |
Investment Securities Continuous Unrealized Loss Position Less Than12 Months Accumulated Loss
InvestmentSecuritiesContinuousUnrealizedLossPositionLessThan12MonthsAccumulatedLoss
|
1600000 | |
CY2020Q4 | us-gaap |
Debt Securities Available For Sale Allowance For Credit Loss
DebtSecuritiesAvailableForSaleAllowanceForCreditLoss
|
0 | |
CY2020Q4 | fisi |
Residential Real Estate Mortgages Serviced For Others
ResidentialRealEstateMortgagesServicedForOthers
|
241700000 | |
CY2019Q4 | fisi |
Residential Real Estate Mortgages Serviced For Others
ResidentialRealEstateMortgagesServicedForOthers
|
189800000 | |
CY2020Q4 | us-gaap |
Escrow Deposit
EscrowDeposit
|
4500000 | |
CY2019Q4 | us-gaap |
Escrow Deposit
EscrowDeposit
|
3900000 | |
CY2019Q4 | fisi |
Mortgage Servicing Assets Before Valuation Allowance
MortgageServicingAssetsBeforeValuationAllowance
|
1129000 | |
CY2018Q4 | fisi |
Mortgage Servicing Assets Before Valuation Allowance
MortgageServicingAssetsBeforeValuationAllowance
|
1022000 | |
CY2017Q4 | fisi |
Mortgage Servicing Assets Before Valuation Allowance
MortgageServicingAssetsBeforeValuationAllowance
|
990000 | |
CY2020 | us-gaap |
Servicing Asset At Fair Value Additions
ServicingAssetAtFairValueAdditions
|
601000 | |
CY2019 | us-gaap |
Servicing Asset At Fair Value Additions
ServicingAssetAtFairValueAdditions
|
349000 | |
CY2018 | us-gaap |
Servicing Asset At Fair Value Additions
ServicingAssetAtFairValueAdditions
|
299000 | |
CY2020 | us-gaap |
Amortization Of Mortgage Servicing Rights Ms Rs
AmortizationOfMortgageServicingRightsMSRs
|
354000 | |
CY2019 | us-gaap |
Amortization Of Mortgage Servicing Rights Ms Rs
AmortizationOfMortgageServicingRightsMSRs
|
242000 | |
CY2018 | us-gaap |
Amortization Of Mortgage Servicing Rights Ms Rs
AmortizationOfMortgageServicingRightsMSRs
|
267000 | |
CY2020Q4 | fisi |
Mortgage Servicing Assets Before Valuation Allowance
MortgageServicingAssetsBeforeValuationAllowance
|
1376000 | |
CY2019Q4 | fisi |
Mortgage Servicing Assets Before Valuation Allowance
MortgageServicingAssetsBeforeValuationAllowance
|
1129000 | |
CY2018Q4 | fisi |
Mortgage Servicing Assets Before Valuation Allowance
MortgageServicingAssetsBeforeValuationAllowance
|
1022000 | |
CY2020Q4 | fisi |
Mortgage Servicing Assets Valuation Allowance
MortgageServicingAssetsValuationAllowance
|
56000 | |
CY2020Q4 | fisi |
Mortgage Servicing Assets Net Of Valuation Allowance
MortgageServicingAssetsNetOfValuationAllowance
|
1320000 | |
CY2019Q4 | fisi |
Mortgage Servicing Assets Net Of Valuation Allowance
MortgageServicingAssetsNetOfValuationAllowance
|
1129000 | |
CY2018Q4 | fisi |
Mortgage Servicing Assets Net Of Valuation Allowance
MortgageServicingAssetsNetOfValuationAllowance
|
1022000 | |
CY2020Q4 | us-gaap |
Loans And Leases Receivable Gross Carrying Amount
LoansAndLeasesReceivableGrossCarryingAmount
|
3557908000 | |
CY2020Q4 | fisi |
Loans And Leases Receivable Deferred Loan Fees Costs
LoansAndLeasesReceivableDeferredLoanFeesCosts
|
-37230000 | |
CY2020Q4 | us-gaap |
Loans And Leases Receivable Net Of Deferred Income
LoansAndLeasesReceivableNetOfDeferredIncome
|
3595138000 | |
CY2020Q4 | us-gaap |
Loans And Leases Receivable Allowance
LoansAndLeasesReceivableAllowance
|
52420000 | |
CY2020Q4 | us-gaap |
Loans And Leases Receivable Net Reported Amount
LoansAndLeasesReceivableNetReportedAmount
|
3542718000 | |
CY2019Q4 | us-gaap |
Loans And Leases Receivable Gross Carrying Amount
LoansAndLeasesReceivableGrossCarryingAmount
|
3179465000 | |
CY2019Q4 | fisi |
Loans And Leases Receivable Deferred Loan Fees Costs
LoansAndLeasesReceivableDeferredLoanFeesCosts
|
-41522000 | |
CY2019Q4 | us-gaap |
Loans And Leases Receivable Net Of Deferred Income
LoansAndLeasesReceivableNetOfDeferredIncome
|
3220987000 | |
CY2019Q4 | us-gaap |
Loans And Leases Receivable Allowance
LoansAndLeasesReceivableAllowance
|
30482000 | |
CY2019Q4 | us-gaap |
Loans And Leases Receivable Net Reported Amount
LoansAndLeasesReceivableNetReportedAmount
|
3190505000 | |
CY2020Q4 | us-gaap |
Loans And Leases Receivable Related Parties
LoansAndLeasesReceivableRelatedParties
|
32800000 | |
CY2019Q4 | us-gaap |
Loans And Leases Receivable Related Parties
LoansAndLeasesReceivableRelatedParties
|
18600000 | |
CY2020 | us-gaap |
Loans And Leases Receivable Related Parties Additions
LoansAndLeasesReceivableRelatedPartiesAdditions
|
16300000 | |
CY2020 | us-gaap |
Loans And Leases Receivable Related Parties Proceeds
LoansAndLeasesReceivableRelatedPartiesProceeds
|
2100000 | |
CY2020Q4 | us-gaap |
Financing Receivable Recorded Investment Past Due
FinancingReceivableRecordedInvestmentPastDue
|
7994000 | |
CY2020Q4 | us-gaap |
Financing Receivable Recorded Investment Nonaccrual Status
FinancingReceivableRecordedInvestmentNonaccrualStatus
|
9286000 | |
CY2020Q4 | us-gaap |
Financing Receivable Recorded Investment Current
FinancingReceivableRecordedInvestmentCurrent
|
3540628000 | |
CY2020Q4 | us-gaap |
Financing Receivable Nonaccrual No Allowance
FinancingReceivableNonaccrualNoAllowance
|
8616000 | |
CY2019Q4 | us-gaap |
Financing Receivable Recorded Investment Past Due
FinancingReceivableRecordedInvestmentPastDue
|
7081000 | |
CY2019Q4 | us-gaap |
Financing Receivable Recorded Investment Nonaccrual Status
FinancingReceivableRecordedInvestmentNonaccrualStatus
|
8634000 | |
CY2019Q4 | us-gaap |
Financing Receivable Recorded Investment Current
FinancingReceivableRecordedInvestmentCurrent
|
3163750000 | |
CY2019Q4 | us-gaap |
Notes Receivable Gross
NotesReceivableGross
|
3179465000 | |
CY2020Q4 | us-gaap |
Financing Receivable Recorded Investment90 Days Past Due And Still Accruing
FinancingReceivableRecordedInvestment90DaysPastDueAndStillAccruing
|
0 | |
CY2019Q4 | us-gaap |
Financing Receivable Recorded Investment90 Days Past Due And Still Accruing
FinancingReceivableRecordedInvestment90DaysPastDueAndStillAccruing
|
0 | |
CY2020 | us-gaap |
Impaired Financing Receivable Interest Income Cash Basis Method
ImpairedFinancingReceivableInterestIncomeCashBasisMethod
|
0 | |
CY2019 | us-gaap |
Impaired Financing Receivable Interest Income Cash Basis Method
ImpairedFinancingReceivableInterestIncomeCashBasisMethod
|
0 | |
CY2018 | us-gaap |
Impaired Financing Receivable Interest Income Cash Basis Method
ImpairedFinancingReceivableInterestIncomeCashBasisMethod
|
0 | |
CY2020 | us-gaap |
Interest Income Operating
InterestIncomeOperating
|
430000 | |
CY2019 | us-gaap |
Interest Income Operating
InterestIncomeOperating
|
508000 | |
CY2018 | us-gaap |
Interest Income Operating
InterestIncomeOperating
|
294000 | |
CY2019 | us-gaap |
Financing Receivable Modifications Number Of Contracts2
FinancingReceivableModificationsNumberOfContracts2
|
0 | |
CY2020 | us-gaap |
Financing Receivable Modifications Number Of Contracts2
FinancingReceivableModificationsNumberOfContracts2
|
0 | |
CY2020 | us-gaap |
Financing Receivable Modifications Subsequent Default Number Of Contracts1
FinancingReceivableModificationsSubsequentDefaultNumberOfContracts1
|
0 | |
CY2019 | us-gaap |
Financing Receivable Modifications Subsequent Default Number Of Contracts1
FinancingReceivableModificationsSubsequentDefaultNumberOfContracts1
|
0 | |
CY2020 | fisi |
Days Past Due When Loans Are Generally Placed On Nonaccrual Status In Days
DaysPastDueWhenLoansAreGenerallyPlacedOnNonaccrualStatusInDays
|
P90D | |
CY2019 | fisi |
Days Past Due When Loans Are Generally Placed On Nonaccrual Status In Days
DaysPastDueWhenLoansAreGenerallyPlacedOnNonaccrualStatusInDays
|
P90D | |
CY2020Q4 | fisi |
Collateral Dependent Loans On Business Assets
CollateralDependentLoansOnBusinessAssets
|
2379000 | |
CY2020Q4 | fisi |
Collateral Dependent Loans On Real Property
CollateralDependentLoansOnRealProperty
|
36625000 | |
CY2020Q4 | fisi |
Collateral Dependent Loans
CollateralDependentLoans
|
39004000 | |
CY2020Q4 | fisi |
Collateral Dependent Loan With Specific Reserve
CollateralDependentLoanWithSpecificReserve
|
9570000 | |
CY2019Q4 | us-gaap |
Impaired Financing Receivable With No Related Allowance Recorded Investment
ImpairedFinancingReceivableWithNoRelatedAllowanceRecordedInvestment
|
1536000 | |
CY2019Q4 | us-gaap |
Impaired Financing Receivable With No Related Allowance Unpaid Principal Balance
ImpairedFinancingReceivableWithNoRelatedAllowanceUnpaidPrincipalBalance
|
2524000 | |
CY2019 | us-gaap |
Impaired Financing Receivable With No Related Allowance Average Recorded Investment
ImpairedFinancingReceivableWithNoRelatedAllowanceAverageRecordedInvestment
|
2112000 | |
CY2019Q4 | us-gaap |
Impaired Financing Receivable With Related Allowance Recorded Investment
ImpairedFinancingReceivableWithRelatedAllowanceRecordedInvestment
|
2787000 | |
CY2019Q4 | us-gaap |
Impaired Financing Receivable With Related Allowance Unpaid Principal Balance
ImpairedFinancingReceivableWithRelatedAllowanceUnpaidPrincipalBalance
|
2787000 | |
CY2019Q4 | us-gaap |
Impaired Financing Receivable Related Allowance
ImpairedFinancingReceivableRelatedAllowance
|
693000 | |
CY2019 | us-gaap |
Impaired Financing Receivable With Related Allowance Average Recorded Investment
ImpairedFinancingReceivableWithRelatedAllowanceAverageRecordedInvestment
|
3032000 | |
CY2019Q4 | us-gaap |
Impaired Financing Receivable Recorded Investment
ImpairedFinancingReceivableRecordedInvestment
|
4323000 | |
CY2019Q4 | us-gaap |
Impaired Financing Receivable Unpaid Principal Balance
ImpairedFinancingReceivableUnpaidPrincipalBalance
|
5311000 | |
CY2019Q4 | us-gaap |
Impaired Financing Receivable Related Allowance
ImpairedFinancingReceivableRelatedAllowance
|
693000 | |
CY2019 | us-gaap |
Impaired Financing Receivable Average Recorded Investment
ImpairedFinancingReceivableAverageRecordedInvestment
|
5144000 | |
CY2019Q4 | us-gaap |
Financing Receivable Allowance For Credit Losses
FinancingReceivableAllowanceForCreditLosses
|
30482000 | |
CY2020 | us-gaap |
Financing Receivable Allowance For Credit Losses Write Offs
FinancingReceivableAllowanceForCreditLossesWriteOffs
|
21625000 | |
CY2020 | us-gaap |
Financing Receivable Allowance For Credit Losses Recovery
FinancingReceivableAllowanceForCreditLossesRecovery
|
7810000 | |
CY2020 | fisi |
Financing Receivable Allowance For Loan Losses Provision Credit
FinancingReceivableAllowanceForLoanLossesProvisionCredit
|
26159000 | |
CY2020Q4 | us-gaap |
Financing Receivable Allowance For Credit Losses
FinancingReceivableAllowanceForCreditLosses
|
52420000 | |
CY2018Q4 | us-gaap |
Financing Receivable Allowance For Credit Losses
FinancingReceivableAllowanceForCreditLosses
|
33914000 | |
CY2019 | us-gaap |
Financing Receivable Allowance For Credit Losses Write Offs
FinancingReceivableAllowanceForCreditLossesWriteOffs
|
17811000 | |
CY2019 | us-gaap |
Financing Receivable Allowance For Credit Losses Recovery
FinancingReceivableAllowanceForCreditLossesRecovery
|
6335000 | |
CY2019 | fisi |
Financing Receivable Allowance For Loan Losses Provision Credit
FinancingReceivableAllowanceForLoanLossesProvisionCredit
|
8044000 | |
CY2019Q4 | us-gaap |
Financing Receivable Allowance For Credit Losses Individually Evaluated For Impairment1
FinancingReceivableAllowanceForCreditLossesIndividuallyEvaluatedForImpairment1
|
693000 | |
CY2019Q4 | us-gaap |
Financing Receivable Allowance For Credit Losses Collectively Evaluated For Impairment
FinancingReceivableAllowanceForCreditLossesCollectivelyEvaluatedForImpairment
|
29789000 | |
CY2019Q4 | us-gaap |
Notes Receivable Gross
NotesReceivableGross
|
3179465000 | |
CY2019Q4 | us-gaap |
Financing Receivable Individually Evaluated For Impairment
FinancingReceivableIndividuallyEvaluatedForImpairment
|
4323000 | |
CY2019Q4 | us-gaap |
Financing Receivable Collectively Evaluated For Impairment
FinancingReceivableCollectivelyEvaluatedForImpairment
|
3175142000 | |
CY2017Q4 | us-gaap |
Financing Receivable Allowance For Credit Losses
FinancingReceivableAllowanceForCreditLosses
|
34672000 | |
CY2018 | us-gaap |
Financing Receivable Allowance For Credit Losses Write Offs
FinancingReceivableAllowanceForCreditLossesWriteOffs
|
15734000 | |
CY2018 | us-gaap |
Financing Receivable Allowance For Credit Losses Recovery
FinancingReceivableAllowanceForCreditLossesRecovery
|
6042000 | |
CY2018 | fisi |
Financing Receivable Allowance For Loan Losses Provision Credit
FinancingReceivableAllowanceForLoanLossesProvisionCredit
|
8934000 | |
CY2018Q4 | us-gaap |
Financing Receivable Allowance For Credit Losses
FinancingReceivableAllowanceForCreditLosses
|
33914000 | |
CY2018Q4 | us-gaap |
Financing Receivable Allowance For Credit Losses Individually Evaluated For Impairment1
FinancingReceivableAllowanceForCreditLossesIndividuallyEvaluatedForImpairment1
|
206000 | |
CY2018Q4 | us-gaap |
Financing Receivable Allowance For Credit Losses Collectively Evaluated For Impairment
FinancingReceivableAllowanceForCreditLossesCollectivelyEvaluatedForImpairment
|
33708000 | |
CY2018Q4 | us-gaap |
Notes Receivable Gross
NotesReceivableGross
|
3044320000 | |
CY2018Q4 | us-gaap |
Financing Receivable Individually Evaluated For Impairment
FinancingReceivableIndividuallyEvaluatedForImpairment
|
3078000 | |
CY2018Q4 | us-gaap |
Financing Receivable Collectively Evaluated For Impairment
FinancingReceivableCollectivelyEvaluatedForImpairment
|
3041242000 | |
CY2020Q4 | us-gaap |
Property Plant And Equipment Gross
PropertyPlantAndEquipmentGross
|
103860000 | |
CY2019Q4 | us-gaap |
Property Plant And Equipment Gross
PropertyPlantAndEquipmentGross
|
102212000 | |
CY2020Q4 | us-gaap |
Accumulated Depreciation Depletion And Amortization Property Plant And Equipment
AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment
|
63250000 | |
CY2019Q4 | us-gaap |
Accumulated Depreciation Depletion And Amortization Property Plant And Equipment
AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment
|
60788000 | |
CY2020Q4 | us-gaap |
Property Plant And Equipment Net
PropertyPlantAndEquipmentNet
|
40610000 | |
CY2019Q4 | us-gaap |
Property Plant And Equipment Net
PropertyPlantAndEquipmentNet
|
41424000 | |
CY2019 | us-gaap |
Goodwill Impairment Loss
GoodwillImpairmentLoss
|
0 | |
CY2018Q4 | us-gaap |
Goodwill
Goodwill
|
66062000 | |
CY2019Q4 | us-gaap |
Goodwill
Goodwill
|
66062000 | |
CY2020Q4 | us-gaap |
Goodwill
Goodwill
|
66062000 | |
CY2020Q4 | us-gaap |
Finite Lived Intangible Assets Amortization Expense Next Twelve Months
FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths
|
1014000 | |
CY2020Q4 | us-gaap |
Finite Lived Intangible Assets Amortization Expense Year Two
FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo
|
923000 | |
CY2020Q4 | us-gaap |
Finite Lived Intangible Assets Amortization Expense Year Three
FiniteLivedIntangibleAssetsAmortizationExpenseYearThree
|
852000 | |
CY2020Q4 | us-gaap |
Finite Lived Intangible Assets Amortization Expense Year Four
FiniteLivedIntangibleAssetsAmortizationExpenseYearFour
|
783000 | |
CY2020Q4 | us-gaap |
Finite Lived Intangible Assets Amortization Expense Year Five
FiniteLivedIntangibleAssetsAmortizationExpenseYearFive
|
714000 | |
CY2020 | us-gaap |
Lessee Operating Lease Description
LesseeOperatingLeaseDescription
|
The Company is obligated under a number of non-cancellable operating lease agreements for land, buildings and equipment with terms, including renewal options reasonably certain to be exercised, extending through 2047 | |
CY2020 | us-gaap |
Lessee Operating Sublease Option To Extend
LesseeOperatingSubleaseOptionToExtend
|
One building lease is subleased for terms extending through 2021 | |
CY2020 | fisi |
Number Of Buildings Subleased
NumberOfBuildingsSubleased
|
1 | |
CY2020Q4 | fisi |
Operating Lease Right Of Use Asset Gross
OperatingLeaseRightOfUseAssetGross
|
23697000 | |
CY2019Q4 | fisi |
Operating Lease Right Of Use Asset Gross
OperatingLeaseRightOfUseAssetGross
|
23224000 | |
CY2020Q4 | fisi |
Operating Lease Right Of Use Asset Accumulated Amortization
OperatingLeaseRightOfUseAssetAccumulatedAmortization
|
3741000 | |
CY2019Q4 | fisi |
Operating Lease Right Of Use Asset Accumulated Amortization
OperatingLeaseRightOfUseAssetAccumulatedAmortization
|
1861000 | |
CY2020Q4 | us-gaap |
Operating Lease Right Of Use Asset
OperatingLeaseRightOfUseAsset
|
19956000 | |
CY2019Q4 | us-gaap |
Operating Lease Right Of Use Asset
OperatingLeaseRightOfUseAsset
|
21363000 | |
CY2020Q4 | us-gaap |
Operating Lease Liability
OperatingLeaseLiability
|
21507000 | |
CY2019Q4 | us-gaap |
Operating Lease Liability
OperatingLeaseLiability
|
22800000 | |
CY2020Q4 | us-gaap |
Operating Lease Weighted Average Remaining Lease Term1
OperatingLeaseWeightedAverageRemainingLeaseTerm1
|
P21Y6M | |
CY2020Q4 | us-gaap |
Operating Lease Weighted Average Discount Rate Percent
OperatingLeaseWeightedAverageDiscountRatePercent
|
0.0382 | |
CY2020 | us-gaap |
Sublease Income
SubleaseIncome
|
46000 | |
CY2019 | us-gaap |
Sublease Income
SubleaseIncome
|
46000 | |
CY2020 | us-gaap |
Lease Cost
LeaseCost
|
3037000 | |
CY2019 | fisi |
Initial Recognition Of Operating Lease Liabilities
InitialRecognitionOfOperatingLeaseLiabilities
|
23985000 | |
CY2020 | us-gaap |
Right Of Use Asset Obtained In Exchange For Operating Lease Liability
RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability
|
477000 | |
CY2019 | us-gaap |
Right Of Use Asset Obtained In Exchange For Operating Lease Liability
RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability
|
620000 | |
CY2018 | us-gaap |
Operating Lease Expense
OperatingLeaseExpense
|
2900000 | |
CY2020Q4 | us-gaap |
Lessee Operating Lease Liability Payments Due Next Rolling Twelve Months
LesseeOperatingLeaseLiabilityPaymentsDueNextRollingTwelveMonths
|
2423000 | |
CY2020Q4 | us-gaap |
Lessee Operating Lease Liability Payments Due In Rolling Year Two
LesseeOperatingLeaseLiabilityPaymentsDueInRollingYearTwo
|
1941000 | |
CY2020Q4 | us-gaap |
Lessee Operating Lease Liability Payments Due In Rolling Year Three
LesseeOperatingLeaseLiabilityPaymentsDueInRollingYearThree
|
1558000 | |
CY2020Q4 | us-gaap |
Lessee Operating Lease Liability Payments Due In Rolling Year Four
LesseeOperatingLeaseLiabilityPaymentsDueInRollingYearFour
|
1264000 | |
CY2020Q4 | us-gaap |
Lessee Operating Lease Liability Payments Due In Rolling Year Five
LesseeOperatingLeaseLiabilityPaymentsDueInRollingYearFive
|
1190000 | |
CY2020Q4 | us-gaap |
Lessee Operating Lease Liability Payments Due After Rolling Year Five
LesseeOperatingLeaseLiabilityPaymentsDueAfterRollingYearFive
|
24792000 | |
CY2020Q4 | us-gaap |
Lessee Operating Lease Liability Payments Due
LesseeOperatingLeaseLiabilityPaymentsDue
|
33168000 | |
CY2020Q4 | us-gaap |
Lessee Operating Lease Liability Undiscounted Excess Amount
LesseeOperatingLeaseLiabilityUndiscountedExcessAmount
|
11661000 | |
CY2020Q4 | us-gaap |
Operating Lease Liability
OperatingLeaseLiability
|
21507000 | |
CY2020Q4 | us-gaap |
Operating Lease Right Of Use Asset
OperatingLeaseRightOfUseAsset
|
19956000 | |
CY2019Q4 | us-gaap |
Operating Lease Right Of Use Asset
OperatingLeaseRightOfUseAsset
|
21363000 | |
CY2020Q4 | fisi |
Tax Credit Investments
TaxCreditInvestments
|
34370000 | |
CY2019Q4 | fisi |
Tax Credit Investments
TaxCreditInvestments
|
16524000 | |
CY2020Q4 | us-gaap |
Derivative Fair Value Of Derivative Asset
DerivativeFairValueOfDerivativeAsset
|
20120000 | |
CY2019Q4 | us-gaap |
Derivative Fair Value Of Derivative Asset
DerivativeFairValueOfDerivativeAsset
|
6731000 | |
CY2020Q4 | fisi |
Collateral On Derivative Instruments
CollateralOnDerivativeInstruments
|
19630000 | |
CY2019Q4 | fisi |
Collateral On Derivative Instruments
CollateralOnDerivativeInstruments
|
6700000 | |
CY2020Q4 | us-gaap |
Other Assets Miscellaneous
OtherAssetsMiscellaneous
|
62010000 | |
CY2019Q4 | us-gaap |
Other Assets Miscellaneous
OtherAssetsMiscellaneous
|
62978000 | |
CY2020Q4 | us-gaap |
Other Assets
OtherAssets
|
156086000 | |
CY2019Q4 | us-gaap |
Other Assets
OtherAssets
|
114296000 | |
CY2020Q4 | us-gaap |
Noninterest Bearing Deposit Liabilities
NoninterestBearingDepositLiabilities
|
1018549000 | |
CY2019Q4 | us-gaap |
Noninterest Bearing Deposit Liabilities
NoninterestBearingDepositLiabilities
|
707752000 | |
CY2020Q4 | us-gaap |
Interest Bearing Deposit Liabilities
InterestBearingDepositLiabilities
|
731885000 | |
CY2019Q4 | us-gaap |
Interest Bearing Deposit Liabilities
InterestBearingDepositLiabilities
|
627842000 | |
CY2020Q4 | us-gaap |
Deposits Savings Deposits
DepositsSavingsDeposits
|
1642340000 | |
CY2019Q4 | us-gaap |
Deposits Savings Deposits
DepositsSavingsDeposits
|
1039892000 | |
CY2020Q4 | us-gaap |
Time Deposit Maturities Year One
TimeDepositMaturitiesYearOne
|
841581000 | |
CY2019Q4 | us-gaap |
Time Deposit Maturities Year One
TimeDepositMaturitiesYearOne
|
1099488000 | |
CY2020Q4 | us-gaap |
Time Deposit Maturities Year Two
TimeDepositMaturitiesYearTwo
|
30847000 | |
CY2019Q4 | us-gaap |
Time Deposit Maturities Year Two
TimeDepositMaturitiesYearTwo
|
60868000 | |
CY2020Q4 | us-gaap |
Time Deposit Maturities Year Three
TimeDepositMaturitiesYearThree
|
5186000 | |
CY2019Q4 | us-gaap |
Time Deposit Maturities Year Three
TimeDepositMaturitiesYearThree
|
14869000 | |
CY2020Q4 | us-gaap |
Time Deposit Maturities Year Four
TimeDepositMaturitiesYearFour
|
5417000 | |
CY2019Q4 | us-gaap |
Time Deposit Maturities Year Four
TimeDepositMaturitiesYearFour
|
3251000 | |
CY2020Q4 | us-gaap |
Time Deposit Maturities Year Five
TimeDepositMaturitiesYearFive
|
2562000 | |
CY2019Q4 | us-gaap |
Time Deposit Maturities Year Five
TimeDepositMaturitiesYearFive
|
1708000 | |
CY2019Q4 | us-gaap |
Time Deposit Maturities After Year Five
TimeDepositMaturitiesAfterYearFive
|
5000 | |
CY2020Q4 | us-gaap |
Time Deposits
TimeDeposits
|
885593000 | |
CY2019Q4 | us-gaap |
Time Deposits
TimeDeposits
|
1180189000 | |
CY2020Q4 | us-gaap |
Deposits
Deposits
|
4278367000 | |
CY2019Q4 | us-gaap |
Deposits
Deposits
|
3555675000 | |
CY2020Q4 | us-gaap |
Time Deposits100000 Or More
TimeDeposits100000OrMore
|
200700000 | |
CY2019Q4 | us-gaap |
Time Deposits100000 Or More
TimeDeposits100000OrMore
|
287000000.0 | |
CY2020 | us-gaap |
Interest Expense Demand Deposit Accounts
InterestExpenseDemandDepositAccounts
|
1091000 | |
CY2019 | us-gaap |
Interest Expense Demand Deposit Accounts
InterestExpenseDemandDepositAccounts
|
1372000 | |
CY2018 | us-gaap |
Interest Expense Demand Deposit Accounts
InterestExpenseDemandDepositAccounts
|
1067000 | |
CY2020 | us-gaap |
Interest Expense Savings Deposits
InterestExpenseSavingsDeposits
|
4788000 | |
CY2019 | us-gaap |
Interest Expense Savings Deposits
InterestExpenseSavingsDeposits
|
4365000 | |
CY2018 | us-gaap |
Interest Expense Savings Deposits
InterestExpenseSavingsDeposits
|
2887000 | |
CY2020 | us-gaap |
Interest Expense Time Deposits
InterestExpenseTimeDeposits
|
11943000 | |
CY2019 | us-gaap |
Interest Expense Time Deposits
InterestExpenseTimeDeposits
|
22757000 | |
CY2018 | us-gaap |
Interest Expense Time Deposits
InterestExpenseTimeDeposits
|
15101000 | |
CY2020 | us-gaap |
Interest Expense Deposits
InterestExpenseDeposits
|
17822000 | |
CY2019 | us-gaap |
Interest Expense Deposits
InterestExpenseDeposits
|
28494000 | |
CY2018 | us-gaap |
Interest Expense Deposits
InterestExpenseDeposits
|
19055000 | |
CY2020Q4 | us-gaap |
Federal Home Loan Bank Advances Maturities Summary Due Within One Year Of Balance Sheet Date
FederalHomeLoanBankAdvancesMaturitiesSummaryDueWithinOneYearOfBalanceSheetDate
|
5300000 | |
CY2019Q4 | us-gaap |
Federal Home Loan Bank Advances Maturities Summary Due Within One Year Of Balance Sheet Date
FederalHomeLoanBankAdvancesMaturitiesSummaryDueWithinOneYearOfBalanceSheetDate
|
275500000 | |
CY2020Q4 | us-gaap |
Subordinated Debt
SubordinatedDebt
|
73623000 | |
CY2019Q4 | us-gaap |
Subordinated Debt
SubordinatedDebt
|
39273000 | |
CY2020Q4 | us-gaap |
Debt Longterm And Shortterm Combined Amount
DebtLongtermAndShorttermCombinedAmount
|
78923000 | |
CY2019Q4 | us-gaap |
Debt Longterm And Shortterm Combined Amount
DebtLongtermAndShorttermCombinedAmount
|
314773000 | |
CY2020Q4 | us-gaap |
Short Term Debt Weighted Average Interest Rate
ShortTermDebtWeightedAverageInterestRate
|
0.0170 | |
CY2019Q4 | us-gaap |
Short Term Debt Weighted Average Interest Rate
ShortTermDebtWeightedAverageInterestRate
|
0.0188 | |
CY2020Q4 | us-gaap |
Line Of Credit
LineOfCredit
|
0 | |
CY2019Q4 | us-gaap |
Line Of Credit
LineOfCredit
|
0 | |
CY2020Q4 | us-gaap |
Interest Rate Cash Flow Hedge Gain Loss To Be Reclassified During Next12 Months Net
InterestRateCashFlowHedgeGainLossToBeReclassifiedDuringNext12MonthsNet
|
114000 | |
CY2020 | fisi |
Statute Of Limitations Period
StatuteOfLimitationsPeriod
|
P3Y | |
CY2020Q4 | us-gaap |
Capital Units Authorized
CapitalUnitsAuthorized
|
50210000 | |
CY2020Q4 | us-gaap |
Common Stock Shares Authorized
CommonStockSharesAuthorized
|
50000000 | |
CY2020Q4 | us-gaap |
Common Stock Par Or Stated Value Per Share
CommonStockParOrStatedValuePerShare
|
0.01 | |
CY2020Q4 | us-gaap |
Preferred Stock Shares Authorized
PreferredStockSharesAuthorized
|
210000 | |
CY2020Q4 | us-gaap |
Preferred Stock Par Or Stated Value Per Share
PreferredStockParOrStatedValuePerShare
|
100 | |
CY2020Q4 | us-gaap |
Preferred Stock Shares Outstanding
PreferredStockSharesOutstanding
|
173282 | |
CY2020Q4 | us-gaap |
Preferred Stock Shares Issued
PreferredStockSharesIssued
|
173282 | |
CY2019Q4 | us-gaap |
Preferred Stock Shares Issued
PreferredStockSharesIssued
|
173282 | |
CY2019Q4 | us-gaap |
Preferred Stock Shares Outstanding
PreferredStockSharesOutstanding
|
173282 | |
CY2019Q4 | us-gaap |
Common Stock Shares Issued
CommonStockSharesIssued
|
16099556 | |
CY2020Q4 | us-gaap |
Common Stock Shares Issued
CommonStockSharesIssued
|
16099556 | |
CY2018Q4 | us-gaap |
Common Stock Shares Issued
CommonStockSharesIssued
|
16056178 | |
CY2019 | us-gaap |
Stock Issued During Period Shares Acquisitions
StockIssuedDuringPeriodSharesAcquisitions
|
43378 | |
CY2019Q4 | us-gaap |
Common Stock Shares Issued
CommonStockSharesIssued
|
16099556 | |
CY2020Q4 | us-gaap |
Stock Repurchase Program Number Of Shares Authorized To Be Repurchased
StockRepurchaseProgramNumberOfSharesAuthorizedToBeRepurchased
|
801879 | |
CY2020 | us-gaap |
Stock Repurchased During Period Shares
StockRepurchasedDuringPeriodShares
|
0 | |
CY2020 | us-gaap |
Other Comprehensive Income Loss Before Tax Portion Attributable To Parent
OtherComprehensiveIncomeLossBeforeTaxPortionAttributableToParent
|
22373000 | |
CY2020 | us-gaap |
Other Comprehensive Income Loss Tax
OtherComprehensiveIncomeLossTax
|
5732000 | |
CY2020 | us-gaap |
Other Comprehensive Income Loss Net Of Tax
OtherComprehensiveIncomeLossNetOfTax
|
16641000 | |
CY2019 | us-gaap |
Other Comprehensive Income Loss Before Tax Portion Attributable To Parent
OtherComprehensiveIncomeLossBeforeTaxPortionAttributableToParent
|
12664000 | |
CY2019 | us-gaap |
Other Comprehensive Income Loss Tax
OtherComprehensiveIncomeLossTax
|
3113000 | |
CY2019 | us-gaap |
Other Comprehensive Income Loss Net Of Tax
OtherComprehensiveIncomeLossNetOfTax
|
9551000 | |
CY2018 | us-gaap |
Other Comprehensive Income Loss Before Tax Portion Attributable To Parent
OtherComprehensiveIncomeLossBeforeTaxPortionAttributableToParent
|
-12522000 | |
CY2018 | us-gaap |
Other Comprehensive Income Loss Tax
OtherComprehensiveIncomeLossTax
|
-3157000 | |
CY2018 | us-gaap |
Other Comprehensive Income Loss Net Of Tax
OtherComprehensiveIncomeLossNetOfTax
|
-9365000 | |
CY2020 | us-gaap |
Other Comprehensive Income Loss Before Reclassifications Net Of Tax
OtherComprehensiveIncomeLossBeforeReclassificationsNetOfTax
|
16660000 | |
CY2020 | us-gaap |
Reclassification From Accumulated Other Comprehensive Income Current Period Net Of Tax
ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTax
|
19000 | |
CY2019 | us-gaap |
Other Comprehensive Income Loss Before Reclassifications Net Of Tax
OtherComprehensiveIncomeLossBeforeReclassificationsNetOfTax
|
9374000 | |
CY2019 | us-gaap |
Reclassification From Accumulated Other Comprehensive Income Current Period Net Of Tax
ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTax
|
-177000 | |
CY2018 | us-gaap |
Other Comprehensive Income Loss Before Reclassifications Net Of Tax
OtherComprehensiveIncomeLossBeforeReclassificationsNetOfTax
|
-10275000 | |
CY2018 | us-gaap |
Reclassification From Accumulated Other Comprehensive Income Current Period Net Of Tax
ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTax
|
-910000 | |
CY2020 | us-gaap |
Reclassification From Accumulated Other Comprehensive Income Current Period Net Of Tax
ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTax
|
19000 | |
CY2019 | us-gaap |
Reclassification From Accumulated Other Comprehensive Income Current Period Net Of Tax
ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTax
|
-177000 | |
CY2020 | us-gaap |
Sharebased Compensation Arrangement By Sharebased Payment Award Expiration Period
SharebasedCompensationArrangementBySharebasedPaymentAwardExpirationPeriod
|
P10Y | |
CY2020 | us-gaap |
Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period Gross
ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross
|
0 | |
CY2019 | us-gaap |
Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period Gross
ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross
|
0 | |
CY2018 | us-gaap |
Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period Gross
ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross
|
0 | |
CY2020Q4 | us-gaap |
Employee Service Share Based Compensation Nonvested Awards Total Compensation Cost Not Yet Recognized
EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized
|
0 | |
CY2018 | us-gaap |
Share Based Compensation Arrangement By Share Based Payment Award Options Exercises In Period Total Intrinsic Value
ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue
|
236000 | |
CY2018 | us-gaap |
Proceeds From Stock Options Exercised
ProceedsFromStockOptionsExercised
|
320000 | |
CY2020 | us-gaap |
Share Based Compensation
ShareBasedCompensation
|
1333000 | |
CY2019 | us-gaap |
Share Based Compensation
ShareBasedCompensation
|
1406000 | |
CY2018 | us-gaap |
Share Based Compensation
ShareBasedCompensation
|
1301000 | |
CY2020 | us-gaap |
Current Federal Tax Expense Benefit
CurrentFederalTaxExpenseBenefit
|
10041000 | |
CY2019 | us-gaap |
Current Federal Tax Expense Benefit
CurrentFederalTaxExpenseBenefit
|
8882000 | |
CY2018 | us-gaap |
Current Federal Tax Expense Benefit
CurrentFederalTaxExpenseBenefit
|
19351000 | |
CY2020 | us-gaap |
Current State And Local Tax Expense Benefit
CurrentStateAndLocalTaxExpenseBenefit
|
1873000 | |
CY2019 | us-gaap |
Current State And Local Tax Expense Benefit
CurrentStateAndLocalTaxExpenseBenefit
|
1308000 | |
CY2018 | us-gaap |
Current State And Local Tax Expense Benefit
CurrentStateAndLocalTaxExpenseBenefit
|
1135000 | |
CY2020 | us-gaap |
Current Income Tax Expense Benefit
CurrentIncomeTaxExpenseBenefit
|
11914000 | |
CY2019 | us-gaap |
Current Income Tax Expense Benefit
CurrentIncomeTaxExpenseBenefit
|
10190000 | |
CY2018 | us-gaap |
Current Income Tax Expense Benefit
CurrentIncomeTaxExpenseBenefit
|
20486000 | |
CY2020 | us-gaap |
Deferred Federal Income Tax Expense Benefit
DeferredFederalIncomeTaxExpenseBenefit
|
-3306000 | |
CY2019 | us-gaap |
Deferred Federal Income Tax Expense Benefit
DeferredFederalIncomeTaxExpenseBenefit
|
280000 | |
CY2018 | us-gaap |
Deferred Federal Income Tax Expense Benefit
DeferredFederalIncomeTaxExpenseBenefit
|
-10303000 | |
CY2020 | us-gaap |
Deferred State And Local Income Tax Expense Benefit
DeferredStateAndLocalIncomeTaxExpenseBenefit
|
-1217000 | |
CY2019 | us-gaap |
Deferred State And Local Income Tax Expense Benefit
DeferredStateAndLocalIncomeTaxExpenseBenefit
|
89000 | |
CY2018 | us-gaap |
Deferred State And Local Income Tax Expense Benefit
DeferredStateAndLocalIncomeTaxExpenseBenefit
|
-177000 | |
CY2020 | us-gaap |
Deferred Income Tax Expense Benefit
DeferredIncomeTaxExpenseBenefit
|
-4523000 | |
CY2019 | us-gaap |
Deferred Income Tax Expense Benefit
DeferredIncomeTaxExpenseBenefit
|
369000 | |
CY2018 | us-gaap |
Deferred Income Tax Expense Benefit
DeferredIncomeTaxExpenseBenefit
|
-10480000 | |
CY2020 | us-gaap |
Income Tax Expense Benefit
IncomeTaxExpenseBenefit
|
7391000 | |
CY2019 | us-gaap |
Income Tax Expense Benefit
IncomeTaxExpenseBenefit
|
10559000 | |
CY2018 | us-gaap |
Income Tax Expense Benefit
IncomeTaxExpenseBenefit
|
10006000 | |
CY2020 | us-gaap |
Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate
EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate
|
0.210 | |
CY2019 | us-gaap |
Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate
EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate
|
0.210 | |
CY2018 | us-gaap |
Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate
EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate
|
0.210 | |
CY2020 | us-gaap |
Effective Income Tax Rate Reconciliation Tax Exempt Income
EffectiveIncomeTaxRateReconciliationTaxExemptIncome
|
-0.020 | |
CY2019 | us-gaap |
Effective Income Tax Rate Reconciliation Tax Exempt Income
EffectiveIncomeTaxRateReconciliationTaxExemptIncome
|
-0.019 | |
CY2018 | us-gaap |
Effective Income Tax Rate Reconciliation Tax Exempt Income
EffectiveIncomeTaxRateReconciliationTaxExemptIncome
|
-0.026 | |
CY2020 | fisi |
Effective Income Tax Rate Reconciliation Tax Credit And Adjustments Percent
EffectiveIncomeTaxRateReconciliationTaxCreditAndAdjustmentsPercent
|
-0.034 | |
CY2019 | fisi |
Effective Income Tax Rate Reconciliation Tax Credit And Adjustments Percent
EffectiveIncomeTaxRateReconciliationTaxCreditAndAdjustmentsPercent
|
-0.030 | |
CY2018 | fisi |
Effective Income Tax Rate Reconciliation Tax Credit And Adjustments Percent
EffectiveIncomeTaxRateReconciliationTaxCreditAndAdjustmentsPercent
|
-0.003 | |
CY2020 | fisi |
Effective Income Tax Rate Reconciliation Non Taxable Earnings On Company Owned Life Insurance
EffectiveIncomeTaxRateReconciliationNonTaxableEarningsOnCompanyOwnedLifeInsurance
|
-0.009 | |
CY2019 | fisi |
Effective Income Tax Rate Reconciliation Non Taxable Earnings On Company Owned Life Insurance
EffectiveIncomeTaxRateReconciliationNonTaxableEarningsOnCompanyOwnedLifeInsurance
|
-0.006 | |
CY2018 | fisi |
Effective Income Tax Rate Reconciliation Non Taxable Earnings On Company Owned Life Insurance
EffectiveIncomeTaxRateReconciliationNonTaxableEarningsOnCompanyOwnedLifeInsurance
|
-0.008 | |
CY2020 | us-gaap |
Effective Income Tax Rate Reconciliation State And Local Income Taxes
EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes
|
0.011 | |
CY2019 | us-gaap |
Effective Income Tax Rate Reconciliation State And Local Income Taxes
EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes
|
0.019 | |
CY2018 | us-gaap |
Effective Income Tax Rate Reconciliation State And Local Income Taxes
EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes
|
0.015 | |
CY2020 | us-gaap |
Effective Income Tax Rate Reconciliation Nondeductible Expense
EffectiveIncomeTaxRateReconciliationNondeductibleExpense
|
0.001 | |
CY2019 | us-gaap |
Effective Income Tax Rate Reconciliation Nondeductible Expense
EffectiveIncomeTaxRateReconciliationNondeductibleExpense
|
0.002 | |
CY2018 | us-gaap |
Effective Income Tax Rate Reconciliation Nondeductible Expense
EffectiveIncomeTaxRateReconciliationNondeductibleExpense
|
0.002 | |
CY2018 | fisi |
Effective Income Tax Rate Reconciliation Goodwill And Contingent Consideration Adjustments Percent
EffectiveIncomeTaxRateReconciliationGoodwillAndContingentConsiderationAdjustmentsPercent
|
0.010 | |
CY2020 | us-gaap |
Effective Income Tax Rate Reconciliation Other Adjustments
EffectiveIncomeTaxRateReconciliationOtherAdjustments
|
0.003 | |
CY2019 | us-gaap |
Effective Income Tax Rate Reconciliation Other Adjustments
EffectiveIncomeTaxRateReconciliationOtherAdjustments
|
0.002 | |
CY2018 | us-gaap |
Effective Income Tax Rate Reconciliation Other Adjustments
EffectiveIncomeTaxRateReconciliationOtherAdjustments
|
0.002 | |
CY2020 | us-gaap |
Effective Income Tax Rate Continuing Operations
EffectiveIncomeTaxRateContinuingOperations
|
0.162 | |
CY2019 | us-gaap |
Effective Income Tax Rate Continuing Operations
EffectiveIncomeTaxRateContinuingOperations
|
0.178 | |
CY2018 | us-gaap |
Effective Income Tax Rate Continuing Operations
EffectiveIncomeTaxRateContinuingOperations
|
0.202 | |
CY2020 | us-gaap |
Income Tax Expense Benefit
IncomeTaxExpenseBenefit
|
7391000 | |
CY2019 | us-gaap |
Income Tax Expense Benefit
IncomeTaxExpenseBenefit
|
10559000 | |
CY2018 | us-gaap |
Income Tax Expense Benefit
IncomeTaxExpenseBenefit
|
10006000 | |
CY2020 | us-gaap |
Income Tax Effects Allocated Directly To Equity
IncomeTaxEffectsAllocatedDirectlyToEquity
|
5732000 | |
CY2019 | us-gaap |
Income Tax Effects Allocated Directly To Equity
IncomeTaxEffectsAllocatedDirectlyToEquity
|
3113000 | |
CY2018 | us-gaap |
Income Tax Effects Allocated Directly To Equity
IncomeTaxEffectsAllocatedDirectlyToEquity
|
-3156000 | |
CY2020Q4 | us-gaap |
Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Allowance For Doubtful Accounts
DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAllowanceForDoubtfulAccounts
|
14239000 | |
CY2019Q4 | us-gaap |
Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Allowance For Doubtful Accounts
DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAllowanceForDoubtfulAccounts
|
7810000 | |
CY2020Q4 | fisi |
Deferred Tax Assets Leases Right Of Use Obligations
DeferredTaxAssetsLeasesRightOfUseObligations
|
5510000 | |
CY2019Q4 | fisi |
Deferred Tax Assets Leases Right Of Use Obligations
DeferredTaxAssetsLeasesRightOfUseObligations
|
5474000 | |
CY2020Q4 | us-gaap |
Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Employee Compensation
DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsEmployeeCompensation
|
1149000 | |
CY2019Q4 | us-gaap |
Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Employee Compensation
DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsEmployeeCompensation
|
1095000 | |
CY2020Q4 | us-gaap |
Deferred Tax Assets Equity Method Investments
DeferredTaxAssetsEquityMethodInvestments
|
1418000 | |
CY2019Q4 | us-gaap |
Deferred Tax Assets Equity Method Investments
DeferredTaxAssetsEquityMethodInvestments
|
1191000 | |
CY2020Q4 | us-gaap |
Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Employee Benefits
DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsEmployeeBenefits
|
323000 | |
CY2019Q4 | us-gaap |
Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Employee Benefits
DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsEmployeeBenefits
|
418000 | |
CY2020Q4 | fisi |
Deferred Tax Assets Interest On Nonaccrual Loans
DeferredTaxAssetsInterestOnNonaccrualLoans
|
88000 | |
CY2019Q4 | fisi |
Deferred Tax Assets Interest On Nonaccrual Loans
DeferredTaxAssetsInterestOnNonaccrualLoans
|
191000 | |
CY2020Q4 | us-gaap |
Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Share Based Compensation Cost
DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsShareBasedCompensationCost
|
602000 | |
CY2019Q4 | us-gaap |
Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Share Based Compensation Cost
DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsShareBasedCompensationCost
|
586000 | |
CY2020Q4 | us-gaap |
Deferred Tax Assets Other
DeferredTaxAssetsOther
|
148000 | |
CY2019Q4 | us-gaap |
Deferred Tax Assets Other
DeferredTaxAssetsOther
|
224000 | |
CY2020Q4 | us-gaap |
Deferred Tax Assets Gross
DeferredTaxAssetsGross
|
23477000 | |
CY2019Q4 | us-gaap |
Deferred Tax Assets Gross
DeferredTaxAssetsGross
|
16989000 | |
CY2020Q4 | us-gaap |
Deferred Tax Liabilities Leasing Arrangements
DeferredTaxLiabilitiesLeasingArrangements
|
5113000 | |
CY2019Q4 | us-gaap |
Deferred Tax Liabilities Leasing Arrangements
DeferredTaxLiabilitiesLeasingArrangements
|
5474000 | |
CY2020Q4 | us-gaap |
Deferred Tax Liabilities Prepaid Expenses
DeferredTaxLiabilitiesPrepaidExpenses
|
635000 | |
CY2019Q4 | us-gaap |
Deferred Tax Liabilities Prepaid Expenses
DeferredTaxLiabilitiesPrepaidExpenses
|
498000 | |
CY2020Q4 | fisi |
Deferred Tax Liabilities Prepaid Pension Costs
DeferredTaxLiabilitiesPrepaidPensionCosts
|
1183000 | |
CY2019Q4 | fisi |
Deferred Tax Liabilities Prepaid Pension Costs
DeferredTaxLiabilitiesPrepaidPensionCosts
|
897000 | |
CY2020Q4 | us-gaap |
Deferred Tax Liabilities Goodwill And Intangible Assets Intangible Assets
DeferredTaxLiabilitiesGoodwillAndIntangibleAssetsIntangibleAssets
|
2286000 | |
CY2019Q4 | us-gaap |
Deferred Tax Liabilities Goodwill And Intangible Assets Intangible Assets
DeferredTaxLiabilitiesGoodwillAndIntangibleAssetsIntangibleAssets
|
2643000 | |
CY2020Q4 | fisi |
Deferred Tax Liabilities Depreciation And Amortization
DeferredTaxLiabilitiesDepreciationAndAmortization
|
2046000 | |
CY2019Q4 | fisi |
Deferred Tax Liabilities Depreciation And Amortization
DeferredTaxLiabilitiesDepreciationAndAmortization
|
1961000 | |
CY2020Q4 | fisi |
Deferred Tax Liabilities Net Unrealized Gain On Securities Available For Sale
DeferredTaxLiabilitiesNetUnrealizedGainOnSecuritiesAvailableForSale
|
5079000 | |
CY2019Q4 | fisi |
Deferred Tax Liabilities Net Unrealized Gain On Securities Available For Sale
DeferredTaxLiabilitiesNetUnrealizedGainOnSecuritiesAvailableForSale
|
301000 | |
CY2020Q4 | us-gaap |
Deferred Tax Liabilities Mortgage Servicing Rights
DeferredTaxLiabilitiesMortgageServicingRights
|
338000 | |
CY2019Q4 | us-gaap |
Deferred Tax Liabilities Mortgage Servicing Rights
DeferredTaxLiabilitiesMortgageServicingRights
|
289000 | |
CY2020Q4 | us-gaap |
Deferred Tax Liabilities Other
DeferredTaxLiabilitiesOther
|
627000 | |
CY2019Q4 | us-gaap |
Deferred Tax Liabilities Other
DeferredTaxLiabilitiesOther
|
550000 | |
CY2020Q4 | us-gaap |
Deferred Income Tax Liabilities
DeferredIncomeTaxLiabilities
|
17307000 | |
CY2019Q4 | us-gaap |
Deferred Income Tax Liabilities
DeferredIncomeTaxLiabilities
|
12613000 | |
CY2020Q4 | us-gaap |
Deferred Tax Assets Liabilities Net
DeferredTaxAssetsLiabilitiesNet
|
6170000 | |
CY2019Q4 | us-gaap |
Deferred Tax Assets Liabilities Net
DeferredTaxAssetsLiabilitiesNet
|
4376000 | |
CY2017 | us-gaap |
Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate
EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate
|
0.35 | |
CY2020 | fisi |
Tax Cuts And Jobs Act Of2017 Maximum Operating Loss Carryforwards Percentage
TaxCutsAndJobsActOf2017MaximumOperatingLossCarryforwardsPercentage
|
0.80 | |
CY2018 | us-gaap |
Unrecognized Tax Benefits Income Tax Penalties And Interest Expense
UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestExpense
|
0 | |
CY2019 | us-gaap |
Unrecognized Tax Benefits Income Tax Penalties And Interest Expense
UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestExpense
|
0 | |
CY2020 | us-gaap |
Unrecognized Tax Benefits Income Tax Penalties And Interest Expense
UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestExpense
|
0 | |
CY2020Q4 | us-gaap |
Unrecognized Tax Benefits Income Tax Penalties And Interest Accrued
UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestAccrued
|
0 | |
CY2019Q4 | us-gaap |
Unrecognized Tax Benefits Income Tax Penalties And Interest Accrued
UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestAccrued
|
0 | |
CY2020 | us-gaap |
Net Income Loss Available To Common Stockholders Basic
NetIncomeLossAvailableToCommonStockholdersBasic
|
36871000 | |
CY2019 | us-gaap |
Net Income Loss Available To Common Stockholders Basic
NetIncomeLossAvailableToCommonStockholdersBasic
|
47401000 | |
CY2018 | us-gaap |
Net Income Loss Available To Common Stockholders Basic
NetIncomeLossAvailableToCommonStockholdersBasic
|
38065000 | |
CY2020 | us-gaap |
Weighted Average Number Of Shares Issued Basic
WeightedAverageNumberOfSharesIssuedBasic
|
16100000 | |
CY2019 | us-gaap |
Weighted Average Number Of Shares Issued Basic
WeightedAverageNumberOfSharesIssuedBasic
|
16086000 | |
CY2018 | us-gaap |
Weighted Average Number Of Shares Issued Basic
WeightedAverageNumberOfSharesIssuedBasic
|
16056000 | |
CY2020 | us-gaap |
Weighted Average Number Of Shares Restricted Stock
WeightedAverageNumberOfSharesRestrictedStock
|
5000 | |
CY2019 | us-gaap |
Weighted Average Number Of Shares Restricted Stock
WeightedAverageNumberOfSharesRestrictedStock
|
4000 | |
CY2018 | us-gaap |
Weighted Average Number Of Shares Restricted Stock
WeightedAverageNumberOfSharesRestrictedStock
|
8000 | |
CY2020 | us-gaap |
Weighted Average Number Of Shares Treasury Stock
WeightedAverageNumberOfSharesTreasuryStock
|
73000 | |
CY2019 | us-gaap |
Weighted Average Number Of Shares Treasury Stock
WeightedAverageNumberOfSharesTreasuryStock
|
110000 | |
CY2018 | us-gaap |
Weighted Average Number Of Shares Treasury Stock
WeightedAverageNumberOfSharesTreasuryStock
|
138000 | |
CY2020 | us-gaap |
Weighted Average Number Of Shares Outstanding Basic
WeightedAverageNumberOfSharesOutstandingBasic
|
16022000 | |
CY2019 | us-gaap |
Weighted Average Number Of Shares Outstanding Basic
WeightedAverageNumberOfSharesOutstandingBasic
|
15972000 | |
CY2018 | us-gaap |
Weighted Average Number Of Shares Outstanding Basic
WeightedAverageNumberOfSharesOutstandingBasic
|
15910000 | |
CY2018 | us-gaap |
Incremental Common Shares Attributable To Share Based Payment Arrangements
IncrementalCommonSharesAttributableToShareBasedPaymentArrangements
|
2000 | |
CY2020 | fisi |
Incremental Common Shares Attributable To Vesting Of Restricted Stock Awards
IncrementalCommonSharesAttributableToVestingOfRestrictedStockAwards
|
41000 | |
CY2019 | fisi |
Incremental Common Shares Attributable To Vesting Of Restricted Stock Awards
IncrementalCommonSharesAttributableToVestingOfRestrictedStockAwards
|
59000 | |
CY2018 | fisi |
Incremental Common Shares Attributable To Vesting Of Restricted Stock Awards
IncrementalCommonSharesAttributableToVestingOfRestrictedStockAwards
|
44000 | |
CY2020 | us-gaap |
Weighted Average Number Of Diluted Shares Outstanding
WeightedAverageNumberOfDilutedSharesOutstanding
|
16063000 | |
CY2019 | us-gaap |
Weighted Average Number Of Diluted Shares Outstanding
WeightedAverageNumberOfDilutedSharesOutstanding
|
16031000 | |
CY2018 | us-gaap |
Weighted Average Number Of Diluted Shares Outstanding
WeightedAverageNumberOfDilutedSharesOutstanding
|
15956000 | |
CY2020 | us-gaap |
Earnings Per Share Basic
EarningsPerShareBasic
|
2.30 | |
CY2019 | us-gaap |
Earnings Per Share Basic
EarningsPerShareBasic
|
2.97 | |
CY2018 | us-gaap |
Earnings Per Share Basic
EarningsPerShareBasic
|
2.39 | |
CY2020 | us-gaap |
Earnings Per Share Diluted
EarningsPerShareDiluted
|
2.30 | |
CY2019 | us-gaap |
Earnings Per Share Diluted
EarningsPerShareDiluted
|
2.96 | |
CY2018 | us-gaap |
Earnings Per Share Diluted
EarningsPerShareDiluted
|
2.39 | |
CY2020 | us-gaap |
Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount
AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount
|
54000 | |
CY2019 | us-gaap |
Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount
AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount
|
4000 | |
CY2018 | us-gaap |
Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount
AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount
|
6000 | |
CY2020 | us-gaap |
Incremental Common Shares Attributable To Participating Nonvested Shares With Non Forfeitable Dividend Rights
IncrementalCommonSharesAttributableToParticipatingNonvestedSharesWithNonForfeitableDividendRights
|
0 | |
CY2019 | us-gaap |
Incremental Common Shares Attributable To Participating Nonvested Shares With Non Forfeitable Dividend Rights
IncrementalCommonSharesAttributableToParticipatingNonvestedSharesWithNonForfeitableDividendRights
|
0 | |
CY2018 | us-gaap |
Incremental Common Shares Attributable To Participating Nonvested Shares With Non Forfeitable Dividend Rights
IncrementalCommonSharesAttributableToParticipatingNonvestedSharesWithNonForfeitableDividendRights
|
0 | |
CY2020Q4 | us-gaap |
Defined Benefit Plan Pension Plans With Accumulated Benefit Obligations In Excess Of Plan Assets Aggregate Projected Benefit Obligation
DefinedBenefitPlanPensionPlansWithAccumulatedBenefitObligationsInExcessOfPlanAssetsAggregateProjectedBenefitObligation
|
0 | |
CY2019Q4 | us-gaap |
Defined Benefit Plan Pension Plans With Accumulated Benefit Obligations In Excess Of Plan Assets Aggregate Projected Benefit Obligation
DefinedBenefitPlanPensionPlansWithAccumulatedBenefitObligationsInExcessOfPlanAssetsAggregateProjectedBenefitObligation
|
0 | |
CY2018Q4 | us-gaap |
Defined Benefit Plan Pension Plans With Accumulated Benefit Obligations In Excess Of Plan Assets Aggregate Projected Benefit Obligation
DefinedBenefitPlanPensionPlansWithAccumulatedBenefitObligationsInExcessOfPlanAssetsAggregateProjectedBenefitObligation
|
0 | |
CY2019Q4 | us-gaap |
Defined Benefit Plan Benefit Obligation
DefinedBenefitPlanBenefitObligation
|
84328000 | |
CY2018Q4 | us-gaap |
Defined Benefit Plan Benefit Obligation
DefinedBenefitPlanBenefitObligation
|
69574000 | |
CY2020 | us-gaap |
Defined Benefit Plan Service Cost
DefinedBenefitPlanServiceCost
|
3693000 | |
CY2019 | us-gaap |
Defined Benefit Plan Service Cost
DefinedBenefitPlanServiceCost
|
3207000 | |
CY2020 | us-gaap |
Defined Benefit Plan Interest Cost
DefinedBenefitPlanInterestCost
|
2537000 | |
CY2019 | us-gaap |
Defined Benefit Plan Interest Cost
DefinedBenefitPlanInterestCost
|
2777000 | |
CY2020 | us-gaap |
Defined Benefit Plan Actuarial Gain Loss
DefinedBenefitPlanActuarialGainLoss
|
-11154000 | |
CY2019 | us-gaap |
Defined Benefit Plan Actuarial Gain Loss
DefinedBenefitPlanActuarialGainLoss
|
-11993000 | |
CY2020 | us-gaap |
Defined Benefit Plan Benefit Obligation Benefits Paid
DefinedBenefitPlanBenefitObligationBenefitsPaid
|
4152000 | |
CY2019 | us-gaap |
Defined Benefit Plan Benefit Obligation Benefits Paid
DefinedBenefitPlanBenefitObligationBenefitsPaid
|
3223000 | |
CY2020Q4 | us-gaap |
Defined Benefit Plan Benefit Obligation
DefinedBenefitPlanBenefitObligation
|
97560000 | |
CY2019Q4 | us-gaap |
Defined Benefit Plan Benefit Obligation
DefinedBenefitPlanBenefitObligation
|
84328000 | |
CY2019Q4 | us-gaap |
Defined Benefit Plan Fair Value Of Plan Assets
DefinedBenefitPlanFairValueOfPlanAssets
|
87827000 | |
CY2018Q4 | us-gaap |
Defined Benefit Plan Fair Value Of Plan Assets
DefinedBenefitPlanFairValueOfPlanAssets
|
75188000 | |
CY2020 | us-gaap |
Defined Benefit Plan Actual Return On Plan Assets
DefinedBenefitPlanActualReturnOnPlanAssets
|
18501000 | |
CY2019 | us-gaap |
Defined Benefit Plan Actual Return On Plan Assets
DefinedBenefitPlanActualReturnOnPlanAssets
|
15862000 | |
CY2020 | us-gaap |
Defined Benefit Plan Plan Assets Benefits Paid
DefinedBenefitPlanPlanAssetsBenefitsPaid
|
4152000 | |
CY2019 | us-gaap |
Defined Benefit Plan Plan Assets Benefits Paid
DefinedBenefitPlanPlanAssetsBenefitsPaid
|
3223000 | |
CY2020Q4 | us-gaap |
Defined Benefit Plan Fair Value Of Plan Assets
DefinedBenefitPlanFairValueOfPlanAssets
|
102176000 | |
CY2019Q4 | us-gaap |
Defined Benefit Plan Fair Value Of Plan Assets
DefinedBenefitPlanFairValueOfPlanAssets
|
87827000 | |
CY2020Q4 | us-gaap |
Defined Benefit Plan Funded Status Of Plan
DefinedBenefitPlanFundedStatusOfPlan
|
4616000 | |
CY2019Q4 | us-gaap |
Defined Benefit Plan Funded Status Of Plan
DefinedBenefitPlanFundedStatusOfPlan
|
3499000 | |
CY2020Q4 | us-gaap |
Defined Benefit Plan Accumulated Benefit Obligation
DefinedBenefitPlanAccumulatedBenefitObligation
|
88900000 | |
CY2019Q4 | us-gaap |
Defined Benefit Plan Accumulated Benefit Obligation
DefinedBenefitPlanAccumulatedBenefitObligation
|
76800000 | |
CY2020Q4 | us-gaap |
Defined Benefit Plan Expected Future Benefit Payments Next Twelve Months
DefinedBenefitPlanExpectedFutureBenefitPaymentsNextTwelveMonths
|
4581000 | |
CY2020Q4 | us-gaap |
Defined Benefit Plan Expected Future Benefit Payments Year Two
DefinedBenefitPlanExpectedFutureBenefitPaymentsYearTwo
|
3860000 | |
CY2020Q4 | us-gaap |
Defined Benefit Plan Expected Future Benefit Payments Year Three
DefinedBenefitPlanExpectedFutureBenefitPaymentsYearThree
|
4213000 | |
CY2020Q4 | us-gaap |
Defined Benefit Plan Expected Future Benefit Payments Year Four
DefinedBenefitPlanExpectedFutureBenefitPaymentsYearFour
|
4259000 | |
CY2020Q4 | us-gaap |
Defined Benefit Plan Expected Future Benefit Payments Year Five
DefinedBenefitPlanExpectedFutureBenefitPaymentsYearFive
|
4472000 | |
CY2020Q4 | us-gaap |
Defined Benefit Plan Expected Future Benefit Payments Five Fiscal Years Thereafter
DefinedBenefitPlanExpectedFutureBenefitPaymentsFiveFiscalYearsThereafter
|
25042000 | |
CY2020 | us-gaap |
Defined Benefit Plan Service Cost
DefinedBenefitPlanServiceCost
|
3693000 | |
CY2019 | us-gaap |
Defined Benefit Plan Service Cost
DefinedBenefitPlanServiceCost
|
3207000 | |
CY2018 | us-gaap |
Defined Benefit Plan Service Cost
DefinedBenefitPlanServiceCost
|
3346000 | |
CY2020 | us-gaap |
Defined Benefit Plan Interest Cost
DefinedBenefitPlanInterestCost
|
2537000 | |
CY2019 | us-gaap |
Defined Benefit Plan Interest Cost
DefinedBenefitPlanInterestCost
|
2777000 | |
CY2018 | us-gaap |
Defined Benefit Plan Interest Cost
DefinedBenefitPlanInterestCost
|
2387000 | |
CY2020 | us-gaap |
Defined Benefit Plan Expected Return On Plan Assets
DefinedBenefitPlanExpectedReturnOnPlanAssets
|
5136000 | |
CY2019 | us-gaap |
Defined Benefit Plan Expected Return On Plan Assets
DefinedBenefitPlanExpectedReturnOnPlanAssets
|
4736000 | |
CY2018 | us-gaap |
Defined Benefit Plan Expected Return On Plan Assets
DefinedBenefitPlanExpectedReturnOnPlanAssets
|
5284000 | |
CY2020 | us-gaap |
Defined Benefit Plan Amortization Of Gains Losses
DefinedBenefitPlanAmortizationOfGainsLosses
|
-1270000 | |
CY2019 | us-gaap |
Defined Benefit Plan Amortization Of Gains Losses
DefinedBenefitPlanAmortizationOfGainsLosses
|
-1445000 | |
CY2018 | us-gaap |
Defined Benefit Plan Amortization Of Gains Losses
DefinedBenefitPlanAmortizationOfGainsLosses
|
-725000 | |
CY2018 | us-gaap |
Defined Benefit Plan Amortization Of Prior Service Cost Credit
DefinedBenefitPlanAmortizationOfPriorServiceCostCredit
|
-5000 | |
CY2020 | us-gaap |
Defined Benefit Plan Net Periodic Benefit Cost
DefinedBenefitPlanNetPeriodicBenefitCost
|
2364000 | |
CY2019 | us-gaap |
Defined Benefit Plan Net Periodic Benefit Cost
DefinedBenefitPlanNetPeriodicBenefitCost
|
2693000 | |
CY2018 | us-gaap |
Defined Benefit Plan Net Periodic Benefit Cost
DefinedBenefitPlanNetPeriodicBenefitCost
|
1169000 | |
CY2020 | us-gaap |
Defined Benefit Plan Assumptions Used Calculating Net Periodic Benefit Cost Discount Rate
DefinedBenefitPlanAssumptionsUsedCalculatingNetPeriodicBenefitCostDiscountRate
|
0.0309 | |
CY2019 | us-gaap |
Defined Benefit Plan Assumptions Used Calculating Net Periodic Benefit Cost Discount Rate
DefinedBenefitPlanAssumptionsUsedCalculatingNetPeriodicBenefitCostDiscountRate
|
0.0413 | |
CY2018 | us-gaap |
Defined Benefit Plan Assumptions Used Calculating Net Periodic Benefit Cost Discount Rate
DefinedBenefitPlanAssumptionsUsedCalculatingNetPeriodicBenefitCostDiscountRate
|
0.0349 | |
CY2020 | us-gaap |
Defined Benefit Plan Assumptions Used Calculating Net Periodic Benefit Cost Rate Of Compensation Increase
DefinedBenefitPlanAssumptionsUsedCalculatingNetPeriodicBenefitCostRateOfCompensationIncrease
|
0.0300 | |
CY2019 | us-gaap |
Defined Benefit Plan Assumptions Used Calculating Net Periodic Benefit Cost Rate Of Compensation Increase
DefinedBenefitPlanAssumptionsUsedCalculatingNetPeriodicBenefitCostRateOfCompensationIncrease
|
0.0300 | |
CY2018 | us-gaap |
Defined Benefit Plan Assumptions Used Calculating Net Periodic Benefit Cost Rate Of Compensation Increase
DefinedBenefitPlanAssumptionsUsedCalculatingNetPeriodicBenefitCostRateOfCompensationIncrease
|
0.0300 | |
CY2020 | us-gaap |
Defined Benefit Plan Assumptions Used Calculating Net Periodic Benefit Cost Expected Long Term Return On Assets
DefinedBenefitPlanAssumptionsUsedCalculatingNetPeriodicBenefitCostExpectedLongTermReturnOnAssets
|
0.0600 | |
CY2019 | us-gaap |
Defined Benefit Plan Assumptions Used Calculating Net Periodic Benefit Cost Expected Long Term Return On Assets
DefinedBenefitPlanAssumptionsUsedCalculatingNetPeriodicBenefitCostExpectedLongTermReturnOnAssets
|
0.0650 | |
CY2018 | us-gaap |
Defined Benefit Plan Assumptions Used Calculating Net Periodic Benefit Cost Expected Long Term Return On Assets
DefinedBenefitPlanAssumptionsUsedCalculatingNetPeriodicBenefitCostExpectedLongTermReturnOnAssets
|
0.0650 | |
CY2020Q4 | us-gaap |
Defined Benefit Plan Assumptions Used Calculating Benefit Obligation Discount Rate
DefinedBenefitPlanAssumptionsUsedCalculatingBenefitObligationDiscountRate
|
0.0232 | |
CY2019Q4 | us-gaap |
Defined Benefit Plan Assumptions Used Calculating Benefit Obligation Discount Rate
DefinedBenefitPlanAssumptionsUsedCalculatingBenefitObligationDiscountRate
|
0.0309 | |
CY2018Q4 | us-gaap |
Defined Benefit Plan Assumptions Used Calculating Benefit Obligation Discount Rate
DefinedBenefitPlanAssumptionsUsedCalculatingBenefitObligationDiscountRate
|
0.0413 | |
CY2020Q4 | us-gaap |
Defined Benefit Plan Assumptions Used Calculating Benefit Obligation Rate Of Compensation Increase
DefinedBenefitPlanAssumptionsUsedCalculatingBenefitObligationRateOfCompensationIncrease
|
0.0300 | |
CY2019Q4 | us-gaap |
Defined Benefit Plan Assumptions Used Calculating Benefit Obligation Rate Of Compensation Increase
DefinedBenefitPlanAssumptionsUsedCalculatingBenefitObligationRateOfCompensationIncrease
|
0.0300 | |
CY2018Q4 | us-gaap |
Defined Benefit Plan Assumptions Used Calculating Benefit Obligation Rate Of Compensation Increase
DefinedBenefitPlanAssumptionsUsedCalculatingBenefitObligationRateOfCompensationIncrease
|
0.0300 | |
CY2020 | fisi |
Investment Strategy Percentage In Long Term Growth
InvestmentStrategyPercentageInLongTermGrowth
|
0.97 | |
CY2020 | fisi |
Investment Strategy Percentage In Near Term Benefit Payments
InvestmentStrategyPercentageInNearTermBenefitPayments
|
0.03 | |
CY2020Q4 | us-gaap |
Cash Equivalents At Carrying Value
CashEquivalentsAtCarryingValue
|
1259000 | |
CY2020Q4 | us-gaap |
Equity Securities Fv Ni
EquitySecuritiesFvNi
|
31848000 | |
CY2020Q4 | fisi |
Fixed Income Securities
FixedIncomeSecurities
|
63176000 | |
CY2020Q4 | us-gaap |
Investments And Cash
InvestmentsAndCash
|
102176000 | |
CY2020Q4 | us-gaap |
Defined Benefit Plan Weighted Average Asset Allocations
DefinedBenefitPlanWeightedAverageAssetAllocations
|
0.99 | |
CY2019Q4 | us-gaap |
Cash Equivalents At Carrying Value
CashEquivalentsAtCarryingValue
|
1845000 | |
CY2019Q4 | us-gaap |
Equity Securities Fv Ni
EquitySecuritiesFvNi
|
30685000 | |
CY2019Q4 | fisi |
Fixed Income Securities
FixedIncomeSecurities
|
49571000 | |
CY2019Q4 | us-gaap |
Investments And Cash
InvestmentsAndCash
|
87827000 | |
CY2019Q4 | us-gaap |
Defined Benefit Plan Weighted Average Asset Allocations
DefinedBenefitPlanWeightedAverageAssetAllocations
|
0.98 | |
CY2020Q4 | us-gaap |
Pension And Other Postretirement And Postemployment Benefit Plans Liabilities Current And Noncurrent
PensionAndOtherPostretirementAndPostemploymentBenefitPlansLiabilitiesCurrentAndNoncurrent
|
108000 | |
CY2019Q4 | us-gaap |
Pension And Other Postretirement And Postemployment Benefit Plans Liabilities Current And Noncurrent
PensionAndOtherPostretirementAndPostemploymentBenefitPlansLiabilitiesCurrentAndNoncurrent
|
110000 | |
CY2020Q4 | us-gaap |
Defined Benefit Plan Accumulated Other Comprehensive Income Before Tax
DefinedBenefitPlanAccumulatedOtherComprehensiveIncomeBeforeTax
|
16536000 | |
CY2019Q4 | us-gaap |
Defined Benefit Plan Accumulated Other Comprehensive Income Before Tax
DefinedBenefitPlanAccumulatedOtherComprehensiveIncomeBeforeTax
|
19990000 | |
CY2020 | us-gaap |
Other Comprehensive Income Defined Benefit Plans Tax Portion Attributable To Parent
OtherComprehensiveIncomeDefinedBenefitPlansTaxPortionAttributableToParent
|
4237000 | |
CY2019 | us-gaap |
Other Comprehensive Income Defined Benefit Plans Tax Portion Attributable To Parent
OtherComprehensiveIncomeDefinedBenefitPlansTaxPortionAttributableToParent
|
5122000 | |
CY2020Q4 | us-gaap |
Accumulated Other Comprehensive Income Loss Defined Benefit Pension And Other Postretirement Plans Net Of Tax
AccumulatedOtherComprehensiveIncomeLossDefinedBenefitPensionAndOtherPostretirementPlansNetOfTax
|
12299000 | |
CY2019Q4 | us-gaap |
Accumulated Other Comprehensive Income Loss Defined Benefit Pension And Other Postretirement Plans Net Of Tax
AccumulatedOtherComprehensiveIncomeLossDefinedBenefitPensionAndOtherPostretirementPlansNetOfTax
|
14868000 | |
CY2020 | us-gaap |
Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Adjustment Before Tax
OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentBeforeTax
|
-3454000 | |
CY2019 | us-gaap |
Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Adjustment Before Tax
OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentBeforeTax
|
-519000 | |
CY2020Q4 | us-gaap |
Fair Value Assets Level1 To Level2 Transfers Amount
FairValueAssetsLevel1ToLevel2TransfersAmount
|
0 | |
CY2019Q4 | us-gaap |
Fair Value Assets Level1 To Level2 Transfers Amount
FairValueAssetsLevel1ToLevel2TransfersAmount
|
0 | |
CY2020Q4 | us-gaap |
Fair Value Assets Level2 To Level1 Transfers Amount
FairValueAssetsLevel2ToLevel1TransfersAmount
|
0 | |
CY2019Q4 | us-gaap |
Fair Value Assets Level2 To Level1 Transfers Amount
FairValueAssetsLevel2ToLevel1TransfersAmount
|
0 | |
CY2020Q4 | us-gaap |
Fair Value Liabilities Level2 To Level1 Transfers Amount
FairValueLiabilitiesLevel2ToLevel1TransfersAmount
|
0 | |
CY2019Q4 | us-gaap |
Fair Value Liabilities Level2 To Level1 Transfers Amount
FairValueLiabilitiesLevel2ToLevel1TransfersAmount
|
0 | |
CY2019Q4 | us-gaap |
Fair Value Assets Level1 To Level2 Transfers Amount
FairValueAssetsLevel1ToLevel2TransfersAmount
|
0 | |
CY2018Q4 | us-gaap |
Fair Value Assets Level1 To Level2 Transfers Amount
FairValueAssetsLevel1ToLevel2TransfersAmount
|
0 | |
CY2019Q4 | us-gaap |
Fair Value Assets Level2 To Level1 Transfers Amount
FairValueAssetsLevel2ToLevel1TransfersAmount
|
0 | |
CY2018Q4 | us-gaap |
Fair Value Assets Level2 To Level1 Transfers Amount
FairValueAssetsLevel2ToLevel1TransfersAmount
|
0 | |
CY2019Q4 | us-gaap |
Fair Value Liabilities Level2 To Level1 Transfers Amount
FairValueLiabilitiesLevel2ToLevel1TransfersAmount
|
0 | |
CY2018Q4 | us-gaap |
Fair Value Liabilities Level2 To Level1 Transfers Amount
FairValueLiabilitiesLevel2ToLevel1TransfersAmount
|
0 | |
CY2020Q4 | us-gaap |
Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Value
FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetValue
|
0 | |
CY2019Q4 | us-gaap |
Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Value
FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetValue
|
0 | |
CY2020 | us-gaap |
Number Of Reportable Segments
NumberOfReportableSegments
|
1 | |
CY2020Q4 | us-gaap |
Goodwill
Goodwill
|
66062000 | |
CY2020Q4 | us-gaap |
Finite Lived Intangible Assets Net
FiniteLivedIntangibleAssetsNet
|
7727000 | |
CY2020Q4 | us-gaap |
Assets
Assets
|
4912306000 | |
CY2019Q4 | us-gaap |
Goodwill
Goodwill
|
66062000 | |
CY2019Q4 | us-gaap |
Finite Lived Intangible Assets Net
FiniteLivedIntangibleAssetsNet
|
8861000 | |
CY2019Q4 | us-gaap |
Assets
Assets
|
4384178000 | |
CY2020 | us-gaap |
Interest Income Expense Net
InterestIncomeExpenseNet
|
138985000 | |
CY2020 | fisi |
Provision For Credit Losses
ProvisionForCreditLosses
|
27184000 | |
CY2020 | us-gaap |
Noninterest Income
NoninterestIncome
|
43176000 | |
CY2020 | us-gaap |
Noninterest Expense
NoninterestExpense
|
109254000 | |
CY2020 | us-gaap |
Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest
IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest
|
45723000 | |
CY2020 | us-gaap |
Income Tax Expense Benefit
IncomeTaxExpenseBenefit
|
7391000 | |
CY2020 | us-gaap |
Net Income Loss
NetIncomeLoss
|
38332000 | |
CY2019 | us-gaap |
Interest Income Expense Net
InterestIncomeExpenseNet
|
129912000 | |
CY2019 | fisi |
Provision For Credit Losses
ProvisionForCreditLosses
|
8044000 | |
CY2019 | us-gaap |
Noninterest Income
NoninterestIncome
|
40381000 | |
CY2019 | us-gaap |
Noninterest Expense
NoninterestExpense
|
102828000 | |
CY2019 | us-gaap |
Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest
IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest
|
59421000 | |
CY2019 | us-gaap |
Income Tax Expense Benefit
IncomeTaxExpenseBenefit
|
10559000 | |
CY2019 | us-gaap |
Net Income Loss
NetIncomeLoss
|
48862000 | |
CY2018 | us-gaap |
Interest Income Expense Net
InterestIncomeExpenseNet
|
122864000 | |
CY2018 | fisi |
Provision For Credit Losses
ProvisionForCreditLosses
|
8934000 | |
CY2018 | us-gaap |
Noninterest Income
NoninterestIncome
|
36478000 | |
CY2018 | us-gaap |
Noninterest Expense
NoninterestExpense
|
100876000 | |
CY2018 | us-gaap |
Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest
IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest
|
49532000 | |
CY2018 | us-gaap |
Income Tax Expense Benefit
IncomeTaxExpenseBenefit
|
10006000 | |
CY2018 | us-gaap |
Net Income Loss
NetIncomeLoss
|
39526000 |