2019 Form 10-K Financial Statement

#000114036120004533 Filed on March 02, 2020

View on sec.gov

Income Statement

Concept 2019 2018 Q4 2018
Revenue $367.5M $344.3M
YoY Change 6.76% 11.26%
Cost Of Revenue
YoY Change
Gross Profit
YoY Change
Gross Profit Margin
Selling, General & Admin
YoY Change
% of Gross Profit
Research & Development $18.32M $17.65M
YoY Change 3.77% 3.42%
% of Gross Profit
Depreciation & Amortization $13.10M $3.200M $13.30M
YoY Change -1.5% -3.03% 1.53%
% of Gross Profit
Operating Expenses $18.32M $17.65M
YoY Change 3.77% 3.42%
Operating Profit
YoY Change
Interest Expense $55.98M $38.63M
YoY Change 44.93% 49.05%
% of Operating Profit
Other Income/Expense, Net
YoY Change
Pretax Income $155.4M $29.40M $137.0M
YoY Change 13.45% -11.71% 6.9%
Income Tax $34.41M $6.100M $24.44M
% Of Pretax Income 22.14% 20.75% 17.84%
Net Earnings $121.0M $28.70M $112.6M
YoY Change 7.51% 63.07% 37.02%
Net Earnings / Revenue 32.93% 32.7%
Basic Earnings Per Share $2.76 $2.58
Diluted Earnings Per Share $2.74 $650.8K $2.56
COMMON SHARES
Basic Shares Outstanding 43.82M 43.70M
Diluted Shares Outstanding 44.12M 44.02M

Balance Sheet

Concept 2019 2018 Q4 2018
SHORT-TERM ASSETS
Cash & Short-Term Investments
YoY Change
Cash & Equivalents $181.0M
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 $110.0M $78.97M $79.00M
YoY Change 39.24% -2.51% -2.47%
Goodwill $274.8M
YoY Change 2.51%
Intangibles $15.60M
YoY Change
Long-Term Investments
YoY Change
Other Assets
YoY Change
Total Long-Term Assets
YoY Change
TOTAL ASSETS
Total Short-Term Assets
Total Long-Term Assets
Total Assets $9.716B $9.556B $9.556B
YoY Change 1.67% 4.59% 4.59%
SHORT-TERM LIABILITIES
YoY Change
Accounts Payable
YoY Change
Accrued Expenses $37.00M
YoY Change
Deferred Revenue
YoY Change
Short-Term Debt $655.0M $871.7M $872.0M
YoY Change -24.89% 21.24% 21.28%
Long-Term Debt Due
YoY Change
Total Short-Term Liabilities $37.00M $872.0M $872.0M
YoY Change -95.76% 21.28% 21.28%
LONG-TERM LIABILITIES
Long-Term Debt $165.0M $175.0M $175.0M
YoY Change -5.71% -7.89% -7.89%
Other Long-Term Liabilities $150.0M $124.0M $124.0M
YoY Change 20.97% 25.25% 25.25%
Total Long-Term Liabilities $315.0M $299.0M $299.0M
YoY Change 5.35% 3.46% 3.46%
TOTAL LIABILITIES
Total Short-Term Liabilities $37.00M $872.0M $872.0M
Total Long-Term Liabilities $315.0M $299.0M $299.0M
Total Liabilities $8.596B $8.538B $8.538B
YoY Change 0.68% 4.39% 4.39%
SHAREHOLDERS EQUITY
Retained Earnings $621.2M
YoY Change
Common Stock $497.0K
YoY Change
Preferred Stock
YoY Change
Treasury Stock (at cost) $136.1M
YoY Change
Treasury Stock Shares $5.979M
Shareholders Equity $1.120B $1.018B $1.018B
YoY Change
Total Liabilities & Shareholders Equity $9.716B $9.556B $9.556B
YoY Change 1.67% 4.59% 4.59%

Cashflow Statement

Concept 2019 2018 Q4 2018
OPERATING ACTIVITIES
Net Income $121.0M $28.70M $112.6M
YoY Change 7.51% 63.07% 37.02%
Depreciation, Depletion And Amortization $13.10M $3.200M $13.30M
YoY Change -1.5% -3.03% 1.53%
Cash From Operating Activities $153.5M $48.00M $147.8M
YoY Change 3.85% 19.11% 7.94%
INVESTING ACTIVITIES
Capital Expenditures -$6.600M -$3.100M -$7.400M
YoY Change -10.81% 24.0% 10.45%
Acquisitions $0.00 $7.884M
YoY Change -100.0% 97.1%
Other Investing Activities -$57.70M -$14.10M -$410.2M
YoY Change -85.93% -47.39% 37.42%
Cash From Investing Activities -$64.34M -$17.20M -$417.6M
YoY Change -84.59% -41.3% 36.84%
FINANCING ACTIVITIES
Cash Dividend Paid
YoY Change
Common Stock Issuance & Retirement, Net $0.00 $0.00
YoY Change
Debt Paid & Issued, Net $20.11M $40.15M
YoY Change -49.9% -0.18%
Cash From Financing Activities -53.23M -24.50M 291.1M
YoY Change -118.28% -26.2% 62.85%
NET CHANGE
Cash From Operating Activities 153.5M 48.00M 147.8M
Cash From Investing Activities -64.34M -17.20M -417.6M
Cash From Financing Activities -53.23M -24.50M 291.1M
Net Change In Cash 35.89M 6.300M 21.29M
YoY Change 68.56% -128.38% 103.1%
FREE CASH FLOW
Cash From Operating Activities $153.5M $48.00M $147.8M
Capital Expenditures -$6.600M -$3.100M -$7.400M
Free Cash Flow $160.1M $51.10M $155.2M
YoY Change 3.15% 19.39% 8.06%

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CY2019 us-gaap Excess Tax Benefit From Share Based Compensation Operating Activities
ExcessTaxBenefitFromShareBasedCompensationOperatingActivities
409000
CY2018 us-gaap Excess Tax Benefit From Share Based Compensation Operating Activities
ExcessTaxBenefitFromShareBasedCompensationOperatingActivities
543000
CY2017 us-gaap Excess Tax Benefit From Share Based Compensation Operating Activities
ExcessTaxBenefitFromShareBasedCompensationOperatingActivities
1769000
CY2019 us-gaap Share Based Compensation
ShareBasedCompensation
4210000
CY2018 us-gaap Share Based Compensation
ShareBasedCompensation
3936000
CY2017 us-gaap Share Based Compensation
ShareBasedCompensation
3644000
CY2019 us-gaap Bank Owned Life Insurance Income
BankOwnedLifeInsuranceIncome
5355000
CY2018 us-gaap Bank Owned Life Insurance Income
BankOwnedLifeInsuranceIncome
5091000
CY2017 us-gaap Bank Owned Life Insurance Income
BankOwnedLifeInsuranceIncome
5175000
CY2019 us-gaap Proceeds From Sale Of Loans Held For Sale
ProceedsFromSaleOfLoansHeldForSale
175829000
CY2018 us-gaap Proceeds From Sale Of Loans Held For Sale
ProceedsFromSaleOfLoansHeldForSale
102547000
CY2017 us-gaap Proceeds From Sale Of Loans Held For Sale
ProceedsFromSaleOfLoansHeldForSale
111284000
CY2019 us-gaap Payments For Origination Of Mortgage Loans Held For Sale
PaymentsForOriginationOfMortgageLoansHeldForSale
181261000
CY2018 us-gaap Payments For Origination Of Mortgage Loans Held For Sale
PaymentsForOriginationOfMortgageLoansHeldForSale
108070000
CY2017 us-gaap Payments For Origination Of Mortgage Loans Held For Sale
PaymentsForOriginationOfMortgageLoansHeldForSale
111206000
CY2019 us-gaap Gain Loss On Sale Of Loans And Leases
GainLossOnSaleOfLoansAndLeases
786000
CY2018 us-gaap Gain Loss On Sale Of Loans And Leases
GainLossOnSaleOfLoansAndLeases
286000
CY2017 us-gaap Gain Loss On Sale Of Loans And Leases
GainLossOnSaleOfLoansAndLeases
349000
CY2019 us-gaap Availableforsale Securities Gross Realized Gain Loss Excluding Other Than Temporary Impairments
AvailableforsaleSecuritiesGrossRealizedGainLossExcludingOtherThanTemporaryImpairments
4213000
CY2018 us-gaap Availableforsale Securities Gross Realized Gain Loss Excluding Other Than Temporary Impairments
AvailableforsaleSecuritiesGrossRealizedGainLossExcludingOtherThanTemporaryImpairments
-6341000
CY2017 us-gaap Availableforsale Securities Gross Realized Gain Loss Excluding Other Than Temporary Impairments
AvailableforsaleSecuritiesGrossRealizedGainLossExcludingOtherThanTemporaryImpairments
1867000
CY2019 us-gaap Gains Losses On Sales Of Other Real Estate
GainsLossesOnSalesOfOtherRealEstate
-227000
CY2018 us-gaap Gains Losses On Sales Of Other Real Estate
GainsLossesOnSalesOfOtherRealEstate
230000
CY2017 us-gaap Gains Losses On Sales Of Other Real Estate
GainsLossesOnSalesOfOtherRealEstate
221000
CY2017 us-gaap Increase Decrease In Other Operating Capital Net
IncreaseDecreaseInOtherOperatingCapitalNet
-7400000
CY2018 us-gaap Equipment Expense
EquipmentExpense
17037000
CY2017 us-gaap Equipment Expense
EquipmentExpense
15225000
CY2019 us-gaap Supplies And Postage Expense
SuppliesAndPostageExpense
6579000
CY2018 us-gaap Supplies And Postage Expense
SuppliesAndPostageExpense
6204000
CY2017 us-gaap Supplies And Postage Expense
SuppliesAndPostageExpense
6284000
CY2019 us-gaap Federal Deposit Insurance Corporation Premium Expense
FederalDepositInsuranceCorporationPremiumExpense
1946000
CY2018 us-gaap Federal Deposit Insurance Corporation Premium Expense
FederalDepositInsuranceCorporationPremiumExpense
4651000
CY2017 us-gaap Federal Deposit Insurance Corporation Premium Expense
FederalDepositInsuranceCorporationPremiumExpense
4767000
CY2019 us-gaap Advertising Expense
AdvertisingExpense
2773000
CY2018 us-gaap Advertising Expense
AdvertisingExpense
2782000
CY2017 us-gaap Advertising Expense
AdvertisingExpense
2744000
CY2019 us-gaap Amortization Of Intangible Assets
AmortizationOfIntangibleAssets
3579000
CY2018 us-gaap Amortization Of Intangible Assets
AmortizationOfIntangibleAssets
4042000
CY2017 us-gaap Amortization Of Intangible Assets
AmortizationOfIntangibleAssets
3960000
CY2019 nbtb Loan Collection And Other Real Estate Owned
LoanCollectionAndOtherRealEstateOwned
4158000
CY2018 nbtb Loan Collection And Other Real Estate Owned
LoanCollectionAndOtherRealEstateOwned
4217000
CY2017 nbtb Loan Collection And Other Real Estate Owned
LoanCollectionAndOtherRealEstateOwned
4763000
CY2019 us-gaap Other Noninterest Expense
OtherNoninterestExpense
24440000
CY2018 us-gaap Other Noninterest Expense
OtherNoninterestExpense
19597000
CY2017 us-gaap Other Noninterest Expense
OtherNoninterestExpense
20308000
CY2019 us-gaap Noninterest Expense
NoninterestExpense
274734000
CY2018 us-gaap Noninterest Expense
NoninterestExpense
264561000
CY2017 us-gaap Noninterest Expense
NoninterestExpense
245648000
CY2019 us-gaap Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments
IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments
155432000
CY2018 us-gaap Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments
IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments
137002000
CY2017 us-gaap Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments
IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments
128161000
CY2019 us-gaap Income Tax Expense Benefit
IncomeTaxExpenseBenefit
34411000
CY2018 us-gaap Income Tax Expense Benefit
IncomeTaxExpenseBenefit
24436000
CY2017 us-gaap Income Tax Expense Benefit
IncomeTaxExpenseBenefit
46010000
CY2019 us-gaap Net Income Loss
NetIncomeLoss
121021000
CY2018 us-gaap Net Income Loss
NetIncomeLoss
112566000
CY2017 us-gaap Net Income Loss
NetIncomeLoss
82151000
CY2019 us-gaap Earnings Per Share Basic
EarningsPerShareBasic
2.76
CY2018 us-gaap Earnings Per Share Basic
EarningsPerShareBasic
2.58
CY2017 us-gaap Earnings Per Share Basic
EarningsPerShareBasic
1.89
CY2019 us-gaap Earnings Per Share Diluted
EarningsPerShareDiluted
2.74
CY2018 us-gaap Earnings Per Share Diluted
EarningsPerShareDiluted
2.56
CY2017 us-gaap Earnings Per Share Diluted
EarningsPerShareDiluted
1.87
CY2019 us-gaap Net Income Loss
NetIncomeLoss
121021000
CY2018 us-gaap Net Income Loss
NetIncomeLoss
112566000
CY2017 us-gaap Net Income Loss
NetIncomeLoss
82151000
CY2019 us-gaap Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Before Tax
OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodBeforeTax
25836000
CY2018 us-gaap Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Before Tax
OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodBeforeTax
-11985000
CY2017 us-gaap Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Before Tax
OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodBeforeTax
-6915000
CY2019 us-gaap Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Tax
OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodTax
6459000
CY2018 us-gaap Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Tax
OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodTax
-2996000
CY2017 us-gaap Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Tax
OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodTax
-2845000
CY2019 us-gaap Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Net Of Tax
OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax
19377000
CY2018 us-gaap Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Net Of Tax
OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax
-8989000
CY2017 us-gaap Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Net Of Tax
OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax
-4070000
CY2019 us-gaap Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Before Tax
OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesBeforeTax
-79000
CY2018 us-gaap Net Cash Provided By Used In Operating Activities
NetCashProvidedByUsedInOperatingActivities
147773000
CY2019 us-gaap Interest Paid Net
InterestPaidNet
55908000
CY2018 us-gaap Interest Paid Net
InterestPaidNet
36691000
CY2017 us-gaap Interest Paid Net
InterestPaidNet
25887000
CY2019 us-gaap Payments To Acquire Businesses Net Of Cash Acquired
PaymentsToAcquireBusinessesNetOfCashAcquired
0
CY2018 us-gaap Payments To Acquire Businesses Net Of Cash Acquired
PaymentsToAcquireBusinessesNetOfCashAcquired
7884000
CY2017 us-gaap Payments To Acquire Businesses Net Of Cash Acquired
PaymentsToAcquireBusinessesNetOfCashAcquired
4000000
CY2019 us-gaap Proceeds From Maturities Prepayments And Calls Of Available For Sale Securities
ProceedsFromMaturitiesPrepaymentsAndCallsOfAvailableForSaleSecurities
273578000
CY2018 us-gaap Proceeds From Maturities Prepayments And Calls Of Available For Sale Securities
ProceedsFromMaturitiesPrepaymentsAndCallsOfAvailableForSaleSecurities
259446000
CY2017 us-gaap Proceeds From Maturities Prepayments And Calls Of Available For Sale Securities
ProceedsFromMaturitiesPrepaymentsAndCallsOfAvailableForSaleSecurities
290613000
CY2019 us-gaap Proceeds From Sale Of Available For Sale Securities Debt
ProceedsFromSaleOfAvailableForSaleSecuritiesDebt
26203000
CY2018 us-gaap Proceeds From Sale Of Available For Sale Securities Debt
ProceedsFromSaleOfAvailableForSaleSecuritiesDebt
101315000
CY2017 us-gaap Proceeds From Sale Of Available For Sale Securities Debt
ProceedsFromSaleOfAvailableForSaleSecuritiesDebt
14788000
CY2019 us-gaap Payments To Acquire Available For Sale Securities Debt
PaymentsToAcquireAvailableForSaleSecuritiesDebt
252963000
CY2018 us-gaap Payments To Acquire Available For Sale Securities Debt
PaymentsToAcquireAvailableForSaleSecuritiesDebt
132448000
CY2017 us-gaap Payments To Acquire Available For Sale Securities Debt
PaymentsToAcquireAvailableForSaleSecuritiesDebt
233804000
CY2019 us-gaap Proceeds From Maturities Prepayments And Calls Of Held To Maturity Securities
ProceedsFromMaturitiesPrepaymentsAndCallsOfHeldToMaturitySecurities
223733000
CY2018 us-gaap Proceeds From Maturities Prepayments And Calls Of Held To Maturity Securities
ProceedsFromMaturitiesPrepaymentsAndCallsOfHeldToMaturitySecurities
100738000
CY2019 us-gaap Proceeds From Sale Of Held To Maturity Securities
ProceedsFromSaleOfHeldToMaturitySecurities
0
CY2018 us-gaap Proceeds From Sale Of Held To Maturity Securities
ProceedsFromSaleOfHeldToMaturitySecurities
0
CY2019 nbtb Proceeds From Sale Of Equity Securities
ProceedsFromSaleOfEquitySecurities
3966000
CY2018 nbtb Proceeds From Sale Of Equity Securities
ProceedsFromSaleOfEquitySecurities
3318000
CY2017 nbtb Proceeds From Sale Of Equity Securities
ProceedsFromSaleOfEquitySecurities
0
CY2019 nbtb Payments To Acquire Equity Securities
PaymentsToAcquireEquitySecurities
93000
CY2018 nbtb Payments To Acquire Equity Securities
PaymentsToAcquireEquitySecurities
2000
CY2017 nbtb Payments To Acquire Equity Securities
PaymentsToAcquireEquitySecurities
0
CY2019 us-gaap Payments For Proceeds From Loans And Leases
PaymentsForProceedsFromLoansAndLeases
272698000
CY2018 us-gaap Payments For Proceeds From Loans And Leases
PaymentsForProceedsFromLoansAndLeases
331166000
CY2017 us-gaap Payments For Proceeds From Loans And Leases
PaymentsForProceedsFromLoansAndLeases
419114000
CY2019 us-gaap Proceeds From Sale Of Federal Home Loan Bank Stock
ProceedsFromSaleOfFederalHomeLoanBankStock
182752000
CY2018 us-gaap Proceeds From Sale Of Federal Home Loan Bank Stock
ProceedsFromSaleOfFederalHomeLoanBankStock
246844000
CY2017 us-gaap Proceeds From Sale Of Federal Home Loan Bank Stock
ProceedsFromSaleOfFederalHomeLoanBankStock
248887000
CY2019 nbtb Payments To Acquire Federal Reserve Bank Stock And Federal Home Loan Bank Stock
PaymentsToAcquireFederalReserveBankStockAndFederalHomeLoanBankStock
174143000
CY2018 nbtb Payments To Acquire Federal Reserve Bank Stock And Federal Home Loan Bank Stock
PaymentsToAcquireFederalReserveBankStockAndFederalHomeLoanBankStock
253367000
CY2017 nbtb Payments To Acquire Federal Reserve Bank Stock And Federal Home Loan Bank Stock
PaymentsToAcquireFederalReserveBankStockAndFederalHomeLoanBankStock
248560000
CY2019 us-gaap Proceeds From Life Insurance Policies
ProceedsFromLifeInsurancePolicies
1086000
CY2018 us-gaap Proceeds From Life Insurance Policies
ProceedsFromLifeInsurancePolicies
0
CY2017 us-gaap Proceeds From Life Insurance Policies
ProceedsFromLifeInsurancePolicies
799000
CY2019 us-gaap Payments To Acquire Productive Assets
PaymentsToAcquireProductiveAssets
6647000
CY2018 us-gaap Payments To Acquire Productive Assets
PaymentsToAcquireProductiveAssets
7402000
CY2017 us-gaap Payments To Acquire Productive Assets
PaymentsToAcquireProductiveAssets
6691000
CY2019 us-gaap Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Writedown Of Securities Tax
OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForWritedownOfSecuritiesTax
0
CY2018 us-gaap Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Writedown Of Securities Tax
OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForWritedownOfSecuritiesTax
0
CY2017 us-gaap Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Writedown Of Securities Tax
OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForWritedownOfSecuritiesTax
501000
CY2018 us-gaap Other Comprehensive Income Loss Reclassification Adjustment From Aoci On Derivatives Before Tax
OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIOnDerivativesBeforeTax
2300000
CY2017 us-gaap Other Comprehensive Income Loss Reclassification Adjustment From Aoci On Derivatives Before Tax
OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIOnDerivativesBeforeTax
292000
CY2019 us-gaap Other Comprehensive Income Loss Reclassification Adjustment From Aoci On Derivatives Tax
OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIOnDerivativesTax
503000
CY2018 us-gaap Other Comprehensive Income Loss Reclassification Adjustment From Aoci On Derivatives Tax
OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIOnDerivativesTax
575000
CY2018 us-gaap Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Before Tax
OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesBeforeTax
-6622000
CY2017 us-gaap Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Before Tax
OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesBeforeTax
1869000
CY2019 us-gaap Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Tax
OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesTax
-20000
CY2018 us-gaap Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Tax
OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesTax
-1655000
CY2017 us-gaap Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Tax
OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesTax
716000
CY2019 us-gaap Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Net Of Tax
OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesNetOfTax
-59000
CY2018 us-gaap Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Net Of Tax
OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesNetOfTax
-4967000
CY2017 us-gaap Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Net Of Tax
OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesNetOfTax
1153000
CY2019 nbtb Other Comprehensive Income Loss Transfers From Available For Sale To Held To Maturity Securities Before Tax
OtherComprehensiveIncomeLossTransfersFromAvailableForSaleToHeldToMaturitySecuritiesBeforeTax
737000
CY2018 nbtb Other Comprehensive Income Loss Transfers From Available For Sale To Held To Maturity Securities Before Tax
OtherComprehensiveIncomeLossTransfersFromAvailableForSaleToHeldToMaturitySecuritiesBeforeTax
688000
CY2017 nbtb Other Comprehensive Income Loss Transfers From Available For Sale To Held To Maturity Securities Before Tax
OtherComprehensiveIncomeLossTransfersFromAvailableForSaleToHeldToMaturitySecuritiesBeforeTax
875000
CY2019 nbtb Other Comprehensive Income Loss Transfers From Available For Sale To Held To Maturity Securities Tax
OtherComprehensiveIncomeLossTransfersFromAvailableForSaleToHeldToMaturitySecuritiesTax
184000
CY2018 nbtb Other Comprehensive Income Loss Transfers From Available For Sale To Held To Maturity Securities Tax
OtherComprehensiveIncomeLossTransfersFromAvailableForSaleToHeldToMaturitySecuritiesTax
172000
CY2017 nbtb Other Comprehensive Income Loss Transfers From Available For Sale To Held To Maturity Securities Tax
OtherComprehensiveIncomeLossTransfersFromAvailableForSaleToHeldToMaturitySecuritiesTax
335000
CY2019 nbtb Other Comprehensive Income Loss Transfers From Available For Sale To Held To Maturity Securities Net Of Tax
OtherComprehensiveIncomeLossTransfersFromAvailableForSaleToHeldToMaturitySecuritiesNetOfTax
553000
CY2018 nbtb Other Comprehensive Income Loss Transfers From Available For Sale To Held To Maturity Securities Net Of Tax
OtherComprehensiveIncomeLossTransfersFromAvailableForSaleToHeldToMaturitySecuritiesNetOfTax
516000
CY2017 nbtb Other Comprehensive Income Loss Transfers From Available For Sale To Held To Maturity Securities Net Of Tax
OtherComprehensiveIncomeLossTransfersFromAvailableForSaleToHeldToMaturitySecuritiesNetOfTax
540000
CY2019 us-gaap Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Writedown Of Securities Before Tax
OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForWritedownOfSecuritiesBeforeTax
0
CY2018 us-gaap Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Writedown Of Securities Before Tax
OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForWritedownOfSecuritiesBeforeTax
0
CY2017 us-gaap Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Writedown Of Securities Before Tax
OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForWritedownOfSecuritiesBeforeTax
1312000
CY2019 us-gaap Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Writedown Of Securities Net Of Tax
OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForWritedownOfSecuritiesNetOfTax
0
CY2018 us-gaap Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Writedown Of Securities Net Of Tax
OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForWritedownOfSecuritiesNetOfTax
0
CY2017 us-gaap Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Writedown Of Securities Net Of Tax
OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForWritedownOfSecuritiesNetOfTax
811000
CY2019 us-gaap Other Comprehensive Income Loss Available For Sale Securities Adjustment Net Of Tax
OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax
19989000
CY2018 us-gaap Other Comprehensive Income Loss Available For Sale Securities Adjustment Net Of Tax
OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax
-3506000
CY2017 us-gaap Other Comprehensive Income Loss Available For Sale Securities Adjustment Net Of Tax
OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax
-3872000
CY2019 us-gaap Other Comprehensive Income Unrealized Gain Loss On Derivatives Arising During Period Before Tax
OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodBeforeTax
-459000
CY2018 us-gaap Other Comprehensive Income Unrealized Gain Loss On Derivatives Arising During Period Before Tax
OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodBeforeTax
1218000
CY2017 us-gaap Other Comprehensive Income Unrealized Gain Loss On Derivatives Arising During Period Before Tax
OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodBeforeTax
901000
CY2019 us-gaap Other Comprehensive Income Unrealized Gain Loss On Derivatives Arising During Period Tax
OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodTax
-115000
CY2018 us-gaap Other Comprehensive Income Unrealized Gain Loss On Derivatives Arising During Period Tax
OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodTax
304000
CY2017 us-gaap Other Comprehensive Income Unrealized Gain Loss On Derivatives Arising During Period Tax
OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodTax
350000
CY2019 us-gaap Other Comprehensive Income Unrealized Gain Loss On Derivatives Arising During Period Net Of Tax
OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodNetOfTax
-344000
CY2018 us-gaap Other Comprehensive Income Unrealized Gain Loss On Derivatives Arising During Period Net Of Tax
OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodNetOfTax
914000
CY2017 us-gaap Other Comprehensive Income Unrealized Gain Loss On Derivatives Arising During Period Net Of Tax
OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodNetOfTax
551000
CY2019 us-gaap Other Comprehensive Income Loss Reclassification Adjustment From Aoci On Derivatives Before Tax
OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIOnDerivativesBeforeTax
2012000
CY2017 us-gaap Other Comprehensive Income Loss Reclassification Adjustment From Aoci On Derivatives Tax
OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIOnDerivativesTax
113000
CY2019 us-gaap Other Comprehensive Income Loss Reclassification Adjustment From Aoci On Derivatives Net Of Tax
OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIOnDerivativesNetOfTax
1509000
CY2018 us-gaap Other Comprehensive Income Loss Reclassification Adjustment From Aoci On Derivatives Net Of Tax
OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIOnDerivativesNetOfTax
1725000
CY2017 us-gaap Other Comprehensive Income Loss Reclassification Adjustment From Aoci On Derivatives Net Of Tax
OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIOnDerivativesNetOfTax
179000
CY2018 us-gaap Income Tax Reconciliation Tax Credits
IncomeTaxReconciliationTaxCredits
1499000
CY2017 us-gaap Income Tax Reconciliation Tax Credits
IncomeTaxReconciliationTaxCredits
1343000
CY2017 us-gaap Increase Decrease In Deposits
IncreaseDecreaseInDeposits
196948000
CY2017 us-gaap Proceeds From Sale Of Other Real Estate
ProceedsFromSaleOfOtherRealEstate
7254000
CY2019 us-gaap Net Cash Provided By Used In Investing Activities
NetCashProvidedByUsedInInvestingActivities
-64343000
CY2018 us-gaap Net Cash Provided By Used In Investing Activities
NetCashProvidedByUsedInInvestingActivities
-417619000
CY2017 us-gaap Net Cash Provided By Used In Investing Activities
NetCashProvidedByUsedInInvestingActivities
-305193000
CY2018 us-gaap Increase Decrease In Deposits
IncreaseDecreaseInDeposits
197575000
CY2019 us-gaap Proceeds From Repayments Of Short Term Debt
ProceedsFromRepaymentsOfShortTermDebt
-216421000
CY2018 us-gaap Proceeds From Repayments Of Short Term Debt
ProceedsFromRepaymentsOfShortTermDebt
152573000
CY2017 us-gaap Proceeds From Repayments Of Short Term Debt
ProceedsFromRepaymentsOfShortTermDebt
37419000
CY2019 us-gaap Proceeds From Issuance Of Shares Under Incentive And Share Based Compensation Plans Including Stock Options
ProceedsFromIssuanceOfSharesUnderIncentiveAndShareBasedCompensationPlansIncludingStockOptions
725000
CY2018 us-gaap Proceeds From Issuance Of Shares Under Incentive And Share Based Compensation Plans Including Stock Options
ProceedsFromIssuanceOfSharesUnderIncentiveAndShareBasedCompensationPlansIncludingStockOptions
1296000
CY2017 us-gaap Proceeds From Issuance Of Shares Under Incentive And Share Based Compensation Plans Including Stock Options
ProceedsFromIssuanceOfSharesUnderIncentiveAndShareBasedCompensationPlansIncludingStockOptions
3309000
CY2019 us-gaap Payments Related To Tax Withholding For Share Based Compensation
PaymentsRelatedToTaxWithholdingForShareBasedCompensation
1622000
CY2018 us-gaap Payments Related To Tax Withholding For Share Based Compensation
PaymentsRelatedToTaxWithholdingForShareBasedCompensation
1893000
CY2017 us-gaap Payments Related To Tax Withholding For Share Based Compensation
PaymentsRelatedToTaxWithholdingForShareBasedCompensation
3582000
CY2019 us-gaap Payments Of Dividends Common Stock
PaymentsOfDividendsCommonStock
46010000
CY2018 us-gaap Payments Of Dividends Common Stock
PaymentsOfDividendsCommonStock
43269000
CY2017 us-gaap Payments Of Dividends Common Stock
PaymentsOfDividendsCommonStock
40104000
CY2019 us-gaap Net Cash Provided By Used In Financing Activities
NetCashProvidedByUsedInFinancingActivities
-53232000
CY2018 us-gaap Net Cash Provided By Used In Financing Activities
NetCashProvidedByUsedInFinancingActivities
291137000
CY2017 us-gaap Net Cash Provided By Used In Financing Activities
NetCashProvidedByUsedInFinancingActivities
178772000
CY2019 us-gaap Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Excluding Exchange Rate Effect
CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseExcludingExchangeRateEffect
35888000
CY2018 us-gaap Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Excluding Exchange Rate Effect
CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseExcludingExchangeRateEffect
21291000
CY2017 us-gaap Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Excluding Exchange Rate Effect
CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseExcludingExchangeRateEffect
10483000
CY2018Q4 us-gaap Cash And Cash Equivalents At Carrying Value
CashAndCashEquivalentsAtCarryingValue
180955000
CY2017Q4 us-gaap Cash And Cash Equivalents At Carrying Value
CashAndCashEquivalentsAtCarryingValue
159664000
CY2016Q4 us-gaap Cash And Cash Equivalents At Carrying Value
CashAndCashEquivalentsAtCarryingValue
149181000
CY2019Q4 us-gaap Cash And Cash Equivalents At Carrying Value
CashAndCashEquivalentsAtCarryingValue
216843000
CY2018Q4 us-gaap Cash And Cash Equivalents At Carrying Value
CashAndCashEquivalentsAtCarryingValue
180955000
CY2019 us-gaap Other Comprehensive Income Loss Cash Flow Hedge Gain Loss After Reclassification And Tax
OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationAndTax
-1853000
CY2018 us-gaap Other Comprehensive Income Loss Cash Flow Hedge Gain Loss After Reclassification And Tax
OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationAndTax
-811000
CY2017 us-gaap Other Comprehensive Income Loss Cash Flow Hedge Gain Loss After Reclassification And Tax
OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationAndTax
372000
CY2019 us-gaap Other Comprehensive Income Loss Reclassification Adjustment From Aoci Pension And Other Postretirement Benefit Plans Before Tax
OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansBeforeTax
2686000
CY2018 us-gaap Other Comprehensive Income Loss Reclassification Adjustment From Aoci Pension And Other Postretirement Benefit Plans Before Tax
OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansBeforeTax
1145000
CY2017 us-gaap Other Comprehensive Income Loss Reclassification Adjustment From Aoci Pension And Other Postretirement Benefit Plans Before Tax
OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansBeforeTax
1852000
CY2019 us-gaap Other Comprehensive Income Loss Reclassification Adjustment From Aoci Pension And Other Postretirement Benefit Plans Tax
OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansTax
672000
CY2018 us-gaap Other Comprehensive Income Loss Reclassification Adjustment From Aoci Pension And Other Postretirement Benefit Plans Tax
OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansTax
286000
CY2017 us-gaap Other Comprehensive Income Loss Reclassification Adjustment From Aoci Pension And Other Postretirement Benefit Plans Tax
OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansTax
740000
CY2019 us-gaap Other Comprehensive Income Loss Reclassification Adjustment From Aoci Pension And Other Postretirement Benefit Plans Net Of Tax
OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansNetOfTax
2014000
CY2018 us-gaap Other Comprehensive Income Loss Reclassification Adjustment From Aoci Pension And Other Postretirement Benefit Plans Net Of Tax
OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansNetOfTax
859000
CY2017 us-gaap Other Comprehensive Income Loss Reclassification Adjustment From Aoci Pension And Other Postretirement Benefit Plans Net Of Tax
OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansNetOfTax
1112000
CY2019 us-gaap Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Net Unamortized Gain Loss Arising During Period Before Tax
OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansNetUnamortizedGainLossArisingDuringPeriodBeforeTax
5331000
CY2018 us-gaap Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Net Unamortized Gain Loss Arising During Period Before Tax
OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansNetUnamortizedGainLossArisingDuringPeriodBeforeTax
-12457000
CY2017 us-gaap Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Net Unamortized Gain Loss Arising During Period Before Tax
OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansNetUnamortizedGainLossArisingDuringPeriodBeforeTax
2401000
CY2019 us-gaap Other Comprehensive Income Loss Reclassification Adjustment From Aoci Pension And Other Postretirement Benefit Plans For Net Gain Loss Before Tax
OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetGainLossBeforeTax
1333000
CY2018 us-gaap Other Comprehensive Income Loss Reclassification Adjustment From Aoci Pension And Other Postretirement Benefit Plans For Net Gain Loss Before Tax
OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetGainLossBeforeTax
-3038000
CY2017 us-gaap Other Comprehensive Income Loss Reclassification Adjustment From Aoci Pension And Other Postretirement Benefit Plans For Net Gain Loss Before Tax
OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetGainLossBeforeTax
570000
CY2019 us-gaap Other Comprehensive Income Defined Benefit Plans Net Unamortized Gain Loss Arising During Period Net Of Tax
OtherComprehensiveIncomeDefinedBenefitPlansNetUnamortizedGainLossArisingDuringPeriodNetOfTax
3998000
CY2018 us-gaap Other Comprehensive Income Defined Benefit Plans Net Unamortized Gain Loss Arising During Period Net Of Tax
OtherComprehensiveIncomeDefinedBenefitPlansNetUnamortizedGainLossArisingDuringPeriodNetOfTax
-9419000
CY2017 us-gaap Other Comprehensive Income Defined Benefit Plans Net Unamortized Gain Loss Arising During Period Net Of Tax
OtherComprehensiveIncomeDefinedBenefitPlansNetUnamortizedGainLossArisingDuringPeriodNetOfTax
1831000
CY2019 us-gaap Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Adjustment Net Of Tax
OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax
-6012000
CY2018 us-gaap Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Adjustment Net Of Tax
OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax
8560000
CY2017 us-gaap Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Adjustment Net Of Tax
OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax
-2943000
CY2019 us-gaap Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent
OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent
24148000
CY2018 us-gaap Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent
OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent
-12877000
CY2017 us-gaap Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent
OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent
-557000
CY2019 us-gaap Comprehensive Income Net Of Tax
ComprehensiveIncomeNetOfTax
145169000
CY2018 us-gaap Comprehensive Income Net Of Tax
ComprehensiveIncomeNetOfTax
99689000
CY2017 us-gaap Comprehensive Income Net Of Tax
ComprehensiveIncomeNetOfTax
81594000
CY2016Q4 us-gaap Stockholders Equity
StockholdersEquity
913316000
CY2017 us-gaap Net Income Loss
NetIncomeLoss
82151000
CY2017 us-gaap Common Stock Dividends Per Share Declared
CommonStockDividendsPerShareDeclared
0.92
CY2017 us-gaap Dividends Cash
DividendsCash
40104000
CY2017 nbtb Stock Issued During Period Shares Employee Benefit Plans And Other Stock Plans
StockIssuedDuringPeriodSharesEmployeeBenefitPlansAndOtherStockPlans
285059
CY2017 nbtb Stock Issued During Period Value Employee Benefit Plans And Other Stock Plans
StockIssuedDuringPeriodValueEmployeeBenefitPlansAndOtherStockPlans
-273000
CY2017 us-gaap Stock Issued During Period Value Share Based Compensation
StockIssuedDuringPeriodValueShareBasedCompensation
3644000
CY2017 us-gaap Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent
OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent
-557000
CY2017Q4 us-gaap Stockholders Equity
StockholdersEquity
958177000
CY2018 us-gaap Net Income Loss
NetIncomeLoss
112566000
CY2018 us-gaap Common Stock Dividends Per Share Declared
CommonStockDividendsPerShareDeclared
0.99
CY2018 us-gaap Dividends Cash
DividendsCash
43269000
CY2018 nbtb Stock Issued During Period Shares Employee Benefit Plans And Other Stock Plans
StockIssuedDuringPeriodSharesEmployeeBenefitPlansAndOtherStockPlans
130157
CY2018 nbtb Stock Issued During Period Value Employee Benefit Plans And Other Stock Plans
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CY2018 us-gaap Stock Issued During Period Value Share Based Compensation
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3936000
CY2018 us-gaap Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent
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-12877000
CY2019 us-gaap Payments For Purchase Of Securities Operating Activities
PaymentsForPurchaseOfSecuritiesOperatingActivities
0
CY2018 us-gaap Payments For Purchase Of Securities Operating Activities
PaymentsForPurchaseOfSecuritiesOperatingActivities
0
CY2017 us-gaap Payments For Purchase Of Securities Operating Activities
PaymentsForPurchaseOfSecuritiesOperatingActivities
1586000
CY2019 us-gaap Debt Securities Trading Unrealized Gain Loss
DebtSecuritiesTradingUnrealizedGainLoss
0
CY2018 us-gaap Debt Securities Trading Unrealized Gain Loss
DebtSecuritiesTradingUnrealizedGainLoss
0
CY2017 us-gaap Debt Securities Trading Unrealized Gain Loss
DebtSecuritiesTradingUnrealizedGainLoss
623000
CY2019 us-gaap Equity Method Investment Realized Gain Loss On Disposal
EquityMethodInvestmentRealizedGainLossOnDisposal
0
CY2018 us-gaap Equity Method Investment Realized Gain Loss On Disposal
EquityMethodInvestmentRealizedGainLossOnDisposal
0
CY2017 us-gaap Equity Method Investment Realized Gain Loss On Disposal
EquityMethodInvestmentRealizedGainLossOnDisposal
818000
CY2019 us-gaap Other Than Temporary Impairment Losses Investments Availableforsale Securities
OtherThanTemporaryImpairmentLossesInvestmentsAvailableforsaleSecurities
0
CY2018Q4 us-gaap Stockholders Equity
StockholdersEquity
1017909000
CY2019 us-gaap Net Income Loss
NetIncomeLoss
121021000
CY2019 us-gaap Common Stock Dividends Per Share Declared
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1.05
CY2019 us-gaap Dividends Cash
DividendsCash
46010000
CY2019 nbtb Stock Issued During Period Shares Employee Benefit Plans And Other Stock Plans
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123645
CY2019 nbtb Stock Issued During Period Value Employee Benefit Plans And Other Stock Plans
StockIssuedDuringPeriodValueEmployeeBenefitPlansAndOtherStockPlans
-881000
CY2019 us-gaap Stock Issued During Period Value Share Based Compensation
StockIssuedDuringPeriodValueShareBasedCompensation
4210000
CY2019 us-gaap Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent
OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent
24148000
CY2019Q4 us-gaap Stockholders Equity
StockholdersEquity
1120397000
CY2019 us-gaap Net Income Loss
NetIncomeLoss
121021000
CY2019 us-gaap Provision For Loan And Lease Losses
ProvisionForLoanAndLeaseLosses
25412000
CY2018 us-gaap Provision For Loan And Lease Losses
ProvisionForLoanAndLeaseLosses
28828000
CY2017 us-gaap Provision For Loan And Lease Losses
ProvisionForLoanAndLeaseLosses
30988000
CY2017 us-gaap Accretion Amortization Of Discounts And Premiums Investments
AccretionAmortizationOfDiscountsAndPremiumsInvestments
-4786000
CY2018 us-gaap Other Than Temporary Impairment Losses Investments Availableforsale Securities
OtherThanTemporaryImpairmentLossesInvestmentsAvailableforsaleSecurities
0
CY2017 us-gaap Other Than Temporary Impairment Losses Investments Availableforsale Securities
OtherThanTemporaryImpairmentLossesInvestmentsAvailableforsaleSecurities
1312000
CY2019 us-gaap Goodwill And Intangible Asset Impairment
GoodwillAndIntangibleAssetImpairment
0
CY2018 us-gaap Goodwill And Intangible Asset Impairment
GoodwillAndIntangibleAssetImpairment
0
CY2017 us-gaap Goodwill And Intangible Asset Impairment
GoodwillAndIntangibleAssetImpairment
1530000
CY2019 nbtb Tax Cuts And Jobs Act Change In Tax Rate Income Tax Expense Benefit
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0
CY2018 nbtb Tax Cuts And Jobs Act Change In Tax Rate Income Tax Expense Benefit
TaxCutsAndJobsActChangeInTaxRateIncomeTaxExpenseBenefit
0
CY2017 nbtb Tax Cuts And Jobs Act Change In Tax Rate Income Tax Expense Benefit
TaxCutsAndJobsActChangeInTaxRateIncomeTaxExpenseBenefit
4407000
CY2019 us-gaap Increase Decrease In Other Operating Capital Net
IncreaseDecreaseInOtherOperatingCapitalNet
4902000
CY2018 us-gaap Increase Decrease In Other Operating Capital Net
IncreaseDecreaseInOtherOperatingCapitalNet
9554000
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NetCashProvidedByUsedInOperatingActivities
153463000
CY2017 us-gaap Net Cash Provided By Used In Operating Activities
NetCashProvidedByUsedInOperatingActivities
136904000
CY2017 us-gaap Proceeds From Maturities Prepayments And Calls Of Held To Maturity Securities
ProceedsFromMaturitiesPrepaymentsAndCallsOfHeldToMaturitySecurities
103759000
CY2017 us-gaap Proceeds From Sale Of Held To Maturity Securities
ProceedsFromSaleOfHeldToMaturitySecurities
764000
CY2019 us-gaap Payments To Acquire Held To Maturity Securities
PaymentsToAcquireHeldToMaturitySecurities
70660000
CY2018 us-gaap Payments To Acquire Held To Maturity Securities
PaymentsToAcquireHeldToMaturitySecurities
400602000
CY2017 us-gaap Payments To Acquire Held To Maturity Securities
PaymentsToAcquireHeldToMaturitySecurities
60706000
CY2019 us-gaap Proceeds From Sale Of Equity Method Investments
ProceedsFromSaleOfEquityMethodInvestments
0
CY2018 us-gaap Proceeds From Sale Of Equity Method Investments
ProceedsFromSaleOfEquityMethodInvestments
0
CY2017 us-gaap Proceeds From Sale Of Equity Method Investments
ProceedsFromSaleOfEquityMethodInvestments
818000
CY2019 us-gaap Proceeds From Sale Of Other Real Estate
ProceedsFromSaleOfOtherRealEstate
1543000
CY2018 us-gaap Proceeds From Sale Of Other Real Estate
ProceedsFromSaleOfOtherRealEstate
3591000
CY2018 us-gaap Income Taxes Paid Net
IncomeTaxesPaidNet
31898000
CY2017 us-gaap Income Taxes Paid Net
IncomeTaxesPaidNet
33675000
CY2019 us-gaap Transfer To Other Real Estate
TransferToOtherRealEstate
787000
CY2018 us-gaap Transfer To Other Real Estate
TransferToOtherRealEstate
1273000
CY2017 us-gaap Transfer To Other Real Estate
TransferToOtherRealEstate
5981000
CY2019 us-gaap Fair Value Of Assets Acquired
FairValueOfAssetsAcquired
0
CY2018 us-gaap Fair Value Of Assets Acquired
FairValueOfAssetsAcquired
6274000
CY2017 us-gaap Fair Value Of Assets Acquired
FairValueOfAssetsAcquired
3096000
CY2019 us-gaap Increase Decrease In Deposits
IncreaseDecreaseInDeposits
219609000
CY2019 us-gaap Proceeds From Issuance Of Long Term Debt
ProceedsFromIssuanceOfLongTermDebt
10598000
CY2018 us-gaap Proceeds From Issuance Of Long Term Debt
ProceedsFromIssuanceOfLongTermDebt
25000000
CY2017 us-gaap Proceeds From Issuance Of Long Term Debt
ProceedsFromIssuanceOfLongTermDebt
25000000
CY2019 us-gaap Repayments Of Long Term Debt
RepaymentsOfLongTermDebt
20111000
CY2018 us-gaap Repayments Of Long Term Debt
RepaymentsOfLongTermDebt
40145000
CY2017 us-gaap Repayments Of Long Term Debt
RepaymentsOfLongTermDebt
40218000
CY2017Q4 us-gaap Cash And Cash Equivalents At Carrying Value
CashAndCashEquivalentsAtCarryingValue
159664000
CY2019 us-gaap Income Taxes Paid Net
IncomeTaxesPaidNet
28374000
CY2019 us-gaap Use Of Estimates
UseOfEstimates
<div style="text-align: justify; font-family: 'Times New Roman'; font-size: 10pt;">Estimates associated with the allowance for loan losses, income taxes, pension expense, fair values of financial instruments, status of contingencies and other-than-temporary impairment ("OTTI") on investments are particularly susceptible to material change in the near term.</div>
CY2019 nbtb Threshold Period Past Due For Loans To Be Considered Nonperforming
ThresholdPeriodPastDueForLoansToBeConsideredNonperforming
P90D
CY2019 nbtb Period Of Sustained Repayment Performance For Nonperforming Tdrs To Be Returned To Performing Status
PeriodOfSustainedRepaymentPerformanceForNonperformingTdrsToBeReturnedToPerformingStatus
P6M
CY2018Q4 us-gaap Held To Maturity Securities
HeldToMaturitySecurities
783599000
CY2018Q4 us-gaap Held To Maturity Securities Accumulated Unrecognized Holding Gain
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3362000
CY2018Q4 us-gaap Held To Maturity Securities Accumulated Unrecognized Holding Loss
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8286000
CY2019 nbtb Standby Letters Of Credit Expiration Period
StandbyLettersOfCreditExpirationPeriod
P1Y
CY2019 us-gaap Revenue From Contract With Customer Excluding Assessed Tax
RevenueFromContractWithCustomerExcludingAssessedTax
134455000
CY2018 us-gaap Revenue From Contract With Customer Excluding Assessed Tax
RevenueFromContractWithCustomerExcludingAssessedTax
126012000
CY2017 us-gaap Revenue From Contract With Customer Excluding Assessed Tax
RevenueFromContractWithCustomerExcludingAssessedTax
113444000
CY2019 nbtb Non Interest Income1
NonInterestIncome1
9568000
CY2018 nbtb Non Interest Income1
NonInterestIncome1
-1250000
CY2017 nbtb Non Interest Income1
NonInterestIncome1
7860000
CY2019 us-gaap Noninterest Income
NoninterestIncome
144023000
CY2018 us-gaap Noninterest Income
NoninterestIncome
124762000
CY2017 us-gaap Noninterest Income
NoninterestIncome
121304000
CY2019Q4 us-gaap Available For Sale Debt Securities Amortized Cost Basis
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968554000
CY2019Q4 us-gaap Available For Sale Debt Securities Accumulated Gross Unrealized Gain Before Tax
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8319000
CY2019Q4 us-gaap Available For Sale Debt Securities Accumulated Gross Unrealized Loss Before Tax
AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax
1533000
CY2019Q4 us-gaap Available For Sale Securities Debt Securities
AvailableForSaleSecuritiesDebtSecurities
975340000
CY2018Q4 us-gaap Available For Sale Debt Securities Amortized Cost Basis
AvailableForSaleDebtSecuritiesAmortizedCostBasis
1017626000
CY2018Q4 us-gaap Available For Sale Debt Securities Accumulated Gross Unrealized Gain Before Tax
AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax
1216000
CY2018Q4 us-gaap Available For Sale Debt Securities Accumulated Gross Unrealized Loss Before Tax
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20346000
CY2018Q4 us-gaap Available For Sale Securities Debt Securities
AvailableForSaleSecuritiesDebtSecurities
998496000
CY2019 us-gaap Debt Securities Available For Sale Realized Gain
DebtSecuritiesAvailableForSaleRealizedGain
73000
CY2018 us-gaap Debt Securities Available For Sale Realized Gain
DebtSecuritiesAvailableForSaleRealizedGain
0
CY2017 us-gaap Debt Securities Available For Sale Realized Gain
DebtSecuritiesAvailableForSaleRealizedGain
2241000
CY2019 us-gaap Debt Securities Available For Sale Realized Loss
DebtSecuritiesAvailableForSaleRealizedLoss
152000
CY2018 us-gaap Debt Securities Available For Sale Realized Loss
DebtSecuritiesAvailableForSaleRealizedLoss
6622000
CY2017 us-gaap Debt Securities Available For Sale Realized Loss
DebtSecuritiesAvailableForSaleRealizedLoss
372000
CY2019 us-gaap Debt Securities Available For Sale Realized Gain Loss
DebtSecuritiesAvailableForSaleRealizedGainLoss
-79000
CY2018 us-gaap Debt Securities Available For Sale Realized Gain Loss
DebtSecuritiesAvailableForSaleRealizedGainLoss
-6622000
CY2017 us-gaap Debt Securities Available For Sale Realized Gain Loss
DebtSecuritiesAvailableForSaleRealizedGainLoss
1869000
CY2019 nbtb Gains From Calls On Securities Available For Sale
GainsFromCallsOnSecuritiesAvailableForSale
25000
CY2018 nbtb Gains From Calls On Securities Available For Sale
GainsFromCallsOnSecuritiesAvailableForSale
0
CY2017 nbtb Gains From Calls On Securities Available For Sale
GainsFromCallsOnSecuritiesAvailableForSale
100000
CY2019Q4 us-gaap Held To Maturity Securities
HeldToMaturitySecurities
630074000
CY2019Q4 us-gaap Held To Maturity Securities Accumulated Unrecognized Holding Gain
HeldToMaturitySecuritiesAccumulatedUnrecognizedHoldingGain
11817000
CY2019Q4 us-gaap Held To Maturity Securities Accumulated Unrecognized Holding Loss
HeldToMaturitySecuritiesAccumulatedUnrecognizedHoldingLoss
629000
CY2019Q4 us-gaap Held To Maturity Securities Fair Value
HeldToMaturitySecuritiesFairValue
641262000
CY2018Q4 us-gaap Held To Maturity Securities Fair Value
HeldToMaturitySecuritiesFairValue
778675000
CY2019 us-gaap Debt Securities Held To Maturity Sold Amount
DebtSecuritiesHeldToMaturitySoldAmount
0
CY2018 us-gaap Debt Securities Held To Maturity Sold Amount
DebtSecuritiesHeldToMaturitySoldAmount
0
CY2017 us-gaap Heldtomaturity Securities Sold Security Realized Gain Loss Excluding Other Than Temporary Impairments
HeldtomaturitySecuritiesSoldSecurityRealizedGainLossExcludingOtherThanTemporaryImpairments
-2000
CY2019 nbtb Gains From Calls On Securities Held To Maturity
GainsFromCallsOnSecuritiesHeldToMaturity
12000
CY2018 nbtb Gains From Calls On Securities Held To Maturity
GainsFromCallsOnSecuritiesHeldToMaturity
0
CY2017 nbtb Gains From Calls On Securities Held To Maturity
GainsFromCallsOnSecuritiesHeldToMaturity
0
CY2019Q4 us-gaap Available For Sale Securities Continuous Unrealized Loss Position Less Than Twelve Months Fair Value
AvailableForSaleSecuritiesContinuousUnrealizedLossPositionLessThanTwelveMonthsFairValue
198501000
CY2019Q4 us-gaap Available For Sale Securities Continuous Unrealized Loss Position Less Than12 Months Accumulated Loss
AvailableForSaleSecuritiesContinuousUnrealizedLossPositionLessThan12MonthsAccumulatedLoss
718000
CY2019Q4 us-gaap Available For Sale Securities In Unrealized Loss Positions Qualitative Disclosure Number Of Positions Less Than One Year
AvailableForSaleSecuritiesInUnrealizedLossPositionsQualitativeDisclosureNumberOfPositionsLessThanOneYear
48
CY2019Q4 us-gaap Available For Sale Securities Continuous Unrealized Loss Position Twelve Months Or Longer Fair Value
AvailableForSaleSecuritiesContinuousUnrealizedLossPositionTwelveMonthsOrLongerFairValue
97243000
CY2019Q4 us-gaap Available For Sale Securities Continuous Unrealized Loss Position12 Months Or Longer Accumulated Loss
AvailableForSaleSecuritiesContinuousUnrealizedLossPosition12MonthsOrLongerAccumulatedLoss
815000
CY2019Q4 us-gaap Availableforsale Securities In Unrealized Loss Positions Qualitative Disclosure Number Of Positions Greater Than Or Equal To One Year
AvailableforsaleSecuritiesInUnrealizedLossPositionsQualitativeDisclosureNumberOfPositionsGreaterThanOrEqualToOneYear
34
CY2019Q4 us-gaap Available For Sale Securities Continuous Unrealized Loss Position Fair Value
AvailableForSaleSecuritiesContinuousUnrealizedLossPositionFairValue
295744000
CY2019Q4 us-gaap Available For Sale Securities Continuous Unrealized Loss Position Accumulated Loss
AvailableForSaleSecuritiesContinuousUnrealizedLossPositionAccumulatedLoss
1533000
CY2019Q4 us-gaap Availableforsale Securities In Unrealized Loss Positions Qualitative Disclosure Number Of Positions1
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82
CY2019Q4 us-gaap Held To Maturity Securities Continuous Unrealized Loss Position Less Than Twelve Months Fair Value
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20297000
CY2019Q4 us-gaap Held To Maturity Securities Continuous Unrealized Loss Position Less Than12 Months Accumulated Loss
HeldToMaturitySecuritiesContinuousUnrealizedLossPositionLessThan12MonthsAccumulatedLoss
187000
CY2019Q4 nbtb Held To Maturity Securities In Unrealized Loss Positions Qualitative Disclosure Number Of Positions Less Than One Year
HeldToMaturitySecuritiesInUnrealizedLossPositionsQualitativeDisclosureNumberOfPositionsLessThanOneYear
7
CY2019Q4 us-gaap Held To Maturity Securities Continuous Unrealized Loss Position Twelve Months Or Longer Fair Value
HeldToMaturitySecuritiesContinuousUnrealizedLossPositionTwelveMonthsOrLongerFairValue
47759000
CY2019Q4 us-gaap Held To Maturity Securities Continuous Unrealized Loss Position12 Months Or Longer Accumulated Loss
HeldToMaturitySecuritiesContinuousUnrealizedLossPosition12MonthsOrLongerAccumulatedLoss
442000
CY2019Q4 nbtb Held To Maturity Securities In Unrealized Loss Positions Qualitative Disclosure Number Of Positions Greater Than Or Equal To One Year
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7
CY2019Q4 us-gaap Held To Maturity Securities Continuous Unrealized Loss Position Fair Value
HeldToMaturitySecuritiesContinuousUnrealizedLossPositionFairValue
68056000
CY2019Q4 us-gaap Held To Maturity Securities Continuous Unrealized Loss Position Accumulated Loss
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629000
CY2019Q4 us-gaap Held To Maturity Securities In Unrealized Loss Positions Qualitative Disclosure Number Of Positions
HeldToMaturitySecuritiesInUnrealizedLossPositionsQualitativeDisclosureNumberOfPositions
14
CY2018Q4 us-gaap Available For Sale Securities Continuous Unrealized Loss Position Less Than Twelve Months Fair Value
AvailableForSaleSecuritiesContinuousUnrealizedLossPositionLessThanTwelveMonthsFairValue
32295000
CY2018Q4 us-gaap Available For Sale Securities Continuous Unrealized Loss Position Less Than12 Months Accumulated Loss
AvailableForSaleSecuritiesContinuousUnrealizedLossPositionLessThan12MonthsAccumulatedLoss
137000
CY2018Q4 us-gaap Available For Sale Securities In Unrealized Loss Positions Qualitative Disclosure Number Of Positions Less Than One Year
AvailableForSaleSecuritiesInUnrealizedLossPositionsQualitativeDisclosureNumberOfPositionsLessThanOneYear
20
CY2018Q4 us-gaap Available For Sale Securities Continuous Unrealized Loss Position Twelve Months Or Longer Fair Value
AvailableForSaleSecuritiesContinuousUnrealizedLossPositionTwelveMonthsOrLongerFairValue
835966000
CY2018Q4 us-gaap Available For Sale Securities Continuous Unrealized Loss Position12 Months Or Longer Accumulated Loss
AvailableForSaleSecuritiesContinuousUnrealizedLossPosition12MonthsOrLongerAccumulatedLoss
20209000
CY2018Q4 us-gaap Availableforsale Securities In Unrealized Loss Positions Qualitative Disclosure Number Of Positions Greater Than Or Equal To One Year
AvailableforsaleSecuritiesInUnrealizedLossPositionsQualitativeDisclosureNumberOfPositionsGreaterThanOrEqualToOneYear
204
CY2018Q4 us-gaap Available For Sale Securities Continuous Unrealized Loss Position Fair Value
AvailableForSaleSecuritiesContinuousUnrealizedLossPositionFairValue
868261000
CY2018Q4 us-gaap Available For Sale Securities Continuous Unrealized Loss Position Accumulated Loss
AvailableForSaleSecuritiesContinuousUnrealizedLossPositionAccumulatedLoss
20346000
CY2018Q4 us-gaap Availableforsale Securities In Unrealized Loss Positions Qualitative Disclosure Number Of Positions1
AvailableforsaleSecuritiesInUnrealizedLossPositionsQualitativeDisclosureNumberOfPositions1
224
CY2018Q4 us-gaap Held To Maturity Securities Continuous Unrealized Loss Position Less Than Twelve Months Fair Value
HeldToMaturitySecuritiesContinuousUnrealizedLossPositionLessThanTwelveMonthsFairValue
23293000
CY2018Q4 us-gaap Held To Maturity Securities Continuous Unrealized Loss Position Less Than12 Months Accumulated Loss
HeldToMaturitySecuritiesContinuousUnrealizedLossPositionLessThan12MonthsAccumulatedLoss
91000
CY2018Q4 nbtb Held To Maturity Securities In Unrealized Loss Positions Qualitative Disclosure Number Of Positions Less Than One Year
HeldToMaturitySecuritiesInUnrealizedLossPositionsQualitativeDisclosureNumberOfPositionsLessThanOneYear
32
CY2018Q4 us-gaap Held To Maturity Securities Continuous Unrealized Loss Position Twelve Months Or Longer Fair Value
HeldToMaturitySecuritiesContinuousUnrealizedLossPositionTwelveMonthsOrLongerFairValue
286233000
CY2018Q4 us-gaap Held To Maturity Securities Continuous Unrealized Loss Position12 Months Or Longer Accumulated Loss
HeldToMaturitySecuritiesContinuousUnrealizedLossPosition12MonthsOrLongerAccumulatedLoss
8195000
CY2018Q4 nbtb Held To Maturity Securities In Unrealized Loss Positions Qualitative Disclosure Number Of Positions Greater Than Or Equal To One Year
HeldToMaturitySecuritiesInUnrealizedLossPositionsQualitativeDisclosureNumberOfPositionsGreaterThanOrEqualToOneYear
118
CY2018Q4 us-gaap Held To Maturity Securities Continuous Unrealized Loss Position Fair Value
HeldToMaturitySecuritiesContinuousUnrealizedLossPositionFairValue
309526000
CY2018Q4 us-gaap Held To Maturity Securities Continuous Unrealized Loss Position Accumulated Loss
HeldToMaturitySecuritiesContinuousUnrealizedLossPositionAccumulatedLoss
8286000
CY2018Q4 us-gaap Held To Maturity Securities In Unrealized Loss Positions Qualitative Disclosure Number Of Positions
HeldToMaturitySecuritiesInUnrealizedLossPositionsQualitativeDisclosureNumberOfPositions
150
CY2018 us-gaap Other Than Temporary Impairment Losses Investments Portion Recognized In Earnings Net
OtherThanTemporaryImpairmentLossesInvestmentsPortionRecognizedInEarningsNet
0
CY2019 us-gaap Other Than Temporary Impairment Losses Investments Portion Recognized In Earnings Net
OtherThanTemporaryImpairmentLossesInvestmentsPortionRecognizedInEarningsNet
0
CY2017 us-gaap Other Than Temporary Impairment Losses Investments Portion Recognized In Earnings Net
OtherThanTemporaryImpairmentLossesInvestmentsPortionRecognizedInEarningsNet
1300000
CY2019 us-gaap Debt Securities Held To Maturity Sold Amount
DebtSecuritiesHeldToMaturitySoldAmount
0
CY2018 us-gaap Debt Securities Held To Maturity Sold Amount
DebtSecuritiesHeldToMaturitySoldAmount
0
CY2017 us-gaap Debt Securities Held To Maturity Sold Amount
DebtSecuritiesHeldToMaturitySoldAmount
800000
CY2017Q4 nbtb Debt Securities Held To Maturity Sold Y Accumulated Unrecognized Loss
DebtSecuritiesHeldToMaturitySoldYAccumulatedUnrecognizedLoss
2000
CY2019 us-gaap Equity Securities Fv Ni Gain Loss
EquitySecuritiesFvNiGainLoss
4280000
CY2018 us-gaap Equity Securities Fv Ni Gain Loss
EquitySecuritiesFvNiGainLoss
281000
CY2019 us-gaap Equity Securities Fv Ni Realized Gain Loss
EquitySecuritiesFvNiRealizedGainLoss
3966000
CY2018 us-gaap Equity Securities Fv Ni Realized Gain Loss
EquitySecuritiesFvNiRealizedGainLoss
555000
CY2019 us-gaap Equity Securities Fv Ni Unrealized Gain Loss
EquitySecuritiesFvNiUnrealizedGainLoss
314000
CY2018 us-gaap Equity Securities Fv Ni Unrealized Gain Loss
EquitySecuritiesFvNiUnrealizedGainLoss
-274000
CY2019Q4 us-gaap Equity Securities Without Readily Determinable Fair Value Amount
EquitySecuritiesWithoutReadilyDeterminableFairValueAmount
4000000.0
CY2018Q4 us-gaap Equity Securities Without Readily Determinable Fair Value Amount
EquitySecuritiesWithoutReadilyDeterminableFairValueAmount
4000000.0
CY2019 us-gaap Equity Securities Without Readily Determinable Fair Value Upward Price Adjustment Annual Amount
EquitySecuritiesWithoutReadilyDeterminableFairValueUpwardPriceAdjustmentAnnualAmount
0
CY2019 us-gaap Equity Securities Without Readily Determinable Fair Value Downward Price Adjustment Annual Amount
EquitySecuritiesWithoutReadilyDeterminableFairValueDownwardPriceAdjustmentAnnualAmount
0
CY2019 us-gaap Equity Securities Without Readily Determinable Fair Value Impairment Loss Annual Amount
EquitySecuritiesWithoutReadilyDeterminableFairValueImpairmentLossAnnualAmount
0
CY2018 us-gaap Equity Securities Without Readily Determinable Fair Value Upward Price Adjustment Annual Amount
EquitySecuritiesWithoutReadilyDeterminableFairValueUpwardPriceAdjustmentAnnualAmount
0
CY2018 us-gaap Equity Securities Without Readily Determinable Fair Value Downward Price Adjustment Annual Amount
EquitySecuritiesWithoutReadilyDeterminableFairValueDownwardPriceAdjustmentAnnualAmount
0
CY2018 us-gaap Equity Securities Without Readily Determinable Fair Value Impairment Loss Annual Amount
EquitySecuritiesWithoutReadilyDeterminableFairValueImpairmentLossAnnualAmount
0
CY2019Q4 us-gaap Held To Maturity Securities
HeldToMaturitySecurities
630074000
CY2019Q4 us-gaap Held To Maturity Securities Fair Value
HeldToMaturitySecuritiesFairValue
641262000
CY2019Q4 us-gaap Held To Maturity Securities Debt Maturities After One Through Five Years Net Carrying Amount
HeldToMaturitySecuritiesDebtMaturitiesAfterOneThroughFiveYearsNetCarryingAmount
53895000
CY2019Q4 us-gaap Held To Maturity Securities Debt Maturities After One Through Five Years Fair Value
HeldToMaturitySecuritiesDebtMaturitiesAfterOneThroughFiveYearsFairValue
54358000
CY2019Q4 us-gaap Held To Maturity Securities Debt Maturities After Five Through Ten Years Net Carrying Amount
HeldToMaturitySecuritiesDebtMaturitiesAfterFiveThroughTenYearsNetCarryingAmount
171942000
CY2019Q4 us-gaap Held To Maturity Securities Debt Maturities After Five Through Ten Years Fair Value
HeldToMaturitySecuritiesDebtMaturitiesAfterFiveThroughTenYearsFairValue
175630000
CY2019Q4 us-gaap Held To Maturity Securities Debt Maturities After Ten Years Net Carrying Amount
HeldToMaturitySecuritiesDebtMaturitiesAfterTenYearsNetCarryingAmount
377227000
CY2019Q4 us-gaap Held To Maturity Securities Debt Maturities After Ten Years Fair Value
HeldToMaturitySecuritiesDebtMaturitiesAfterTenYearsFairValue
384264000
CY2018Q4 us-gaap Unamortized Loan Commitment And Origination Fees And Unamortized Discounts Or Premiums
UnamortizedLoanCommitmentAndOriginationFeesAndUnamortizedDiscountsOrPremiums
43500000
CY2019Q4 us-gaap Loans Receivable Held For Sale Net Not Part Of Disposal Group
LoansReceivableHeldForSaleNetNotPartOfDisposalGroup
11500000
CY2019Q4 us-gaap Available For Sale Securities Debt Maturities Within One Year Amortized Cost
AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearAmortizedCost
268000
CY2019Q4 us-gaap Available For Sale Securities Debt Maturities Within One Year Fair Value
AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearFairValue
272000
CY2019Q4 us-gaap Available For Sale Securities Debt Maturities After One Through Five Years Amortized Cost
AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughFiveYearsAmortizedCost
28692000
CY2019Q4 us-gaap Available For Sale Securities Debt Maturities After One Through Five Years Fair Value
AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughFiveYearsFairValue
28668000
CY2019Q4 us-gaap Available For Sale Securities Debt Maturities After Five Through Ten Years Amortized Cost
AvailableForSaleSecuritiesDebtMaturitiesAfterFiveThroughTenYearsAmortizedCost
170771000
CY2019Q4 us-gaap Available For Sale Securities Debt Maturities After Five Through Ten Years Fair Value
AvailableForSaleSecuritiesDebtMaturitiesAfterFiveThroughTenYearsFairValue
171943000
CY2019Q4 us-gaap Available For Sale Securities Debt Maturities After Ten Years Amortized Cost
AvailableForSaleSecuritiesDebtMaturitiesAfterTenYearsAmortizedCost
768823000
CY2019Q4 us-gaap Available For Sale Securities Debt Maturities After Ten Years Fair Value
AvailableForSaleSecuritiesDebtMaturitiesAfterTenYearsFairValue
774457000
CY2019Q4 us-gaap Available For Sale Debt Securities Amortized Cost Basis
AvailableForSaleDebtSecuritiesAmortizedCostBasis
968554000
CY2019Q4 us-gaap Available For Sale Securities Debt Securities
AvailableForSaleSecuritiesDebtSecurities
975340000
CY2019Q4 us-gaap Held To Maturity Securities Debt Maturities Within One Year Net Carrying Amount
HeldToMaturitySecuritiesDebtMaturitiesWithinOneYearNetCarryingAmount
27010000
CY2019Q4 us-gaap Held To Maturity Securities Debt Maturities Within One Year Fair Value
HeldToMaturitySecuritiesDebtMaturitiesWithinOneYearFairValue
27010000
CY2019Q4 nbtb Number Of Issuers Whose Holdings Exceeded Ten Percent Of Consolidated Stockholders Equity Excluding Us Government Securities
NumberOfIssuersWhoseHoldingsExceededTenPercentOfConsolidatedStockholdersEquityExcludingUSGovernmentSecurities
0
CY2018Q4 nbtb Number Of Issuers Whose Holdings Exceeded Ten Percent Of Consolidated Stockholders Equity Excluding Us Government Securities
NumberOfIssuersWhoseHoldingsExceededTenPercentOfConsolidatedStockholdersEquityExcludingUSGovernmentSecurities
0
CY2019Q4 us-gaap Loans And Leases Receivable Net Of Deferred Income
LoansAndLeasesReceivableNetOfDeferredIncome
7136098000
CY2018Q4 us-gaap Loans And Leases Receivable Net Of Deferred Income
LoansAndLeasesReceivableNetOfDeferredIncome
6887709000
CY2019Q4 us-gaap Unamortized Loan Commitment And Origination Fees And Unamortized Discounts Or Premiums
UnamortizedLoanCommitmentAndOriginationFeesAndUnamortizedDiscountsOrPremiums
35300000
CY2018 us-gaap Provision For Loan And Lease Losses
ProvisionForLoanAndLeaseLosses
28828000
CY2018Q4 us-gaap Loans Receivable Held For Sale Net Not Part Of Disposal Group
LoansReceivableHeldForSaleNetNotPartOfDisposalGroup
6900000
CY2019Q4 nbtb Loans Serviced For Others
LoansServicedForOthers
612300000
CY2018Q4 nbtb Loans Serviced For Others
LoansServicedForOthers
557900000
CY2019Q4 us-gaap Servicing Asset At Amortized Value
ServicingAssetAtAmortizedValue
800000
CY2018Q4 us-gaap Servicing Asset At Amortized Value
ServicingAssetAtAmortizedValue
500000
CY2018Q4 us-gaap Loans And Leases Receivable Related Parties
LoansAndLeasesReceivableRelatedParties
1638000
CY2017Q4 us-gaap Loans And Leases Receivable Related Parties
LoansAndLeasesReceivableRelatedParties
1577000
CY2019 us-gaap Loans And Leases Receivable Related Parties Additions
LoansAndLeasesReceivableRelatedPartiesAdditions
587000
CY2018 us-gaap Loans And Leases Receivable Related Parties Additions
LoansAndLeasesReceivableRelatedPartiesAdditions
260000
CY2019 nbtb Loans And Leases Receivable Related Parties Composition Period Increase Decrease
LoansAndLeasesReceivableRelatedPartiesCompositionPeriodIncreaseDecrease
389000
CY2018 nbtb Loans And Leases Receivable Related Parties Composition Period Increase Decrease
LoansAndLeasesReceivableRelatedPartiesCompositionPeriodIncreaseDecrease
0
CY2019 us-gaap Loans And Leases Receivable Related Parties Proceeds
LoansAndLeasesReceivableRelatedPartiesProceeds
448000
CY2018 us-gaap Loans And Leases Receivable Related Parties Proceeds
LoansAndLeasesReceivableRelatedPartiesProceeds
199000
CY2019Q4 us-gaap Loans And Leases Receivable Related Parties
LoansAndLeasesReceivableRelatedParties
2166000
CY2018Q4 us-gaap Loans And Leases Receivable Related Parties
LoansAndLeasesReceivableRelatedParties
1638000
CY2019 nbtb Loan Portfolio Segments
LoanPortfolioSegments
3
CY2018Q4 us-gaap Loans And Leases Receivable Allowance
LoansAndLeasesReceivableAllowance
72505000
CY2019 us-gaap Allowance For Loan And Lease Losses Write Offs
AllowanceForLoanAndLeaseLossesWriteOffs
32540000
CY2019 us-gaap Allowance For Loan And Lease Loss Recovery Of Bad Debts
AllowanceForLoanAndLeaseLossRecoveryOfBadDebts
7588000
CY2019 us-gaap Provision For Loan And Lease Losses
ProvisionForLoanAndLeaseLosses
25412000
CY2019Q4 us-gaap Loans And Leases Receivable Allowance
LoansAndLeasesReceivableAllowance
72965000
CY2017Q4 us-gaap Loans And Leases Receivable Allowance
LoansAndLeasesReceivableAllowance
69500000
CY2018 us-gaap Allowance For Loan And Lease Losses Write Offs
AllowanceForLoanAndLeaseLossesWriteOffs
34128000
CY2018 us-gaap Allowance For Loan And Lease Loss Recovery Of Bad Debts
AllowanceForLoanAndLeaseLossRecoveryOfBadDebts
8305000
CY2018 us-gaap Current Federal Tax Expense Benefit
CurrentFederalTaxExpenseBenefit
15762000
CY2017 us-gaap Current Federal Tax Expense Benefit
CurrentFederalTaxExpenseBenefit
35839000
CY2019 us-gaap Current State And Local Tax Expense Benefit
CurrentStateAndLocalTaxExpenseBenefit
7653000
CY2018 us-gaap Current State And Local Tax Expense Benefit
CurrentStateAndLocalTaxExpenseBenefit
5977000
CY2017 us-gaap Current State And Local Tax Expense Benefit
CurrentStateAndLocalTaxExpenseBenefit
6599000
CY2018 us-gaap Current Income Tax Expense Benefit
CurrentIncomeTaxExpenseBenefit
21739000
CY2017 us-gaap Current Income Tax Expense Benefit
CurrentIncomeTaxExpenseBenefit
42438000
CY2019 us-gaap Deferred Federal Income Tax Expense Benefit
DeferredFederalIncomeTaxExpenseBenefit
-1379000
CY2018 us-gaap Deferred Federal Income Tax Expense Benefit
DeferredFederalIncomeTaxExpenseBenefit
2281000
CY2017 us-gaap Deferred Federal Income Tax Expense Benefit
DeferredFederalIncomeTaxExpenseBenefit
3850000
CY2019 us-gaap Deferred State And Local Income Tax Expense Benefit
DeferredStateAndLocalIncomeTaxExpenseBenefit
-338000
CY2018 us-gaap Deferred State And Local Income Tax Expense Benefit
DeferredStateAndLocalIncomeTaxExpenseBenefit
416000
CY2017 us-gaap Deferred State And Local Income Tax Expense Benefit
DeferredStateAndLocalIncomeTaxExpenseBenefit
-278000
CY2019 us-gaap Deferred Income Tax Expense Benefit
DeferredIncomeTaxExpenseBenefit
-1717000
CY2018 us-gaap Deferred Income Tax Expense Benefit
DeferredIncomeTaxExpenseBenefit
2697000
CY2017 us-gaap Deferred Income Tax Expense Benefit
DeferredIncomeTaxExpenseBenefit
3572000
CY2019 us-gaap Income Tax Expense Benefit
IncomeTaxExpenseBenefit
34411000
CY2018 us-gaap Income Tax Expense Benefit
IncomeTaxExpenseBenefit
24436000
CY2018 nbtb Tax Benefit Resulting From Letter Ruling From Irs Approving Change In Tax Accounting Method
TaxBenefitResultingFromLetterRulingFromIRSApprovingChangeInTaxAccountingMethod
5500000
CY2019Q4 us-gaap Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Provision For Loan Losses
DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsProvisionForLoanLosses
18535000
CY2018Q4 us-gaap Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Provision For Loan Losses
DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsProvisionForLoanLosses
18042000
CY2019Q4 nbtb Deferred Tax Assets Lease Liability
DeferredTaxAssetsLeaseLiability
9331000
CY2018Q4 nbtb Deferred Tax Assets Lease Liability
DeferredTaxAssetsLeaseLiability
0
CY2019Q4 us-gaap Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Employee Compensation
DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsEmployeeCompensation
8336000
CY2018Q4 us-gaap Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Employee Compensation
DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsEmployeeCompensation
7340000
CY2019Q4 us-gaap Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Postretirement Benefits
DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsPostretirementBenefits
1631000
CY2018Q4 us-gaap Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Postretirement Benefits
DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsPostretirementBenefits
1962000
CY2019Q4 nbtb Deferred Tax Assets Purchase Accounting Fair Value Adjustments
DeferredTaxAssetsPurchaseAccountingFairValueAdjustments
422000
CY2018Q4 nbtb Deferred Tax Assets Purchase Accounting Fair Value Adjustments
DeferredTaxAssetsPurchaseAccountingFairValueAdjustments
663000
CY2019Q4 us-gaap Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Accrued Liabilities
DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAccruedLiabilities
1176000
CY2018Q4 us-gaap Impaired Financing Receivable Unpaid Principal Balance
ImpairedFinancingReceivableUnpaidPrincipalBalance
28552000
CY2018Q4 us-gaap Impaired Financing Receivable Related Allowance
ImpairedFinancingReceivableRelatedAllowance
25000
CY2019Q4 us-gaap Impaired Financing Receivable Related Allowance
ImpairedFinancingReceivableRelatedAllowance
0
CY2018Q4 us-gaap Impaired Financing Receivable Recorded Investment
ImpairedFinancingReceivableRecordedInvestment
20578000
CY2018Q4 us-gaap Loans And Leases Receivable Allowance
LoansAndLeasesReceivableAllowance
72505000
CY2016Q4 us-gaap Loans And Leases Receivable Allowance
LoansAndLeasesReceivableAllowance
65200000
CY2017 us-gaap Allowance For Loan And Lease Losses Write Offs
AllowanceForLoanAndLeaseLossesWriteOffs
33087000
CY2017 us-gaap Allowance For Loan And Lease Loss Recovery Of Bad Debts
AllowanceForLoanAndLeaseLossRecoveryOfBadDebts
6399000
CY2017 us-gaap Provision For Loan And Lease Losses
ProvisionForLoanAndLeaseLosses
30988000
CY2017Q4 us-gaap Loans And Leases Receivable Allowance
LoansAndLeasesReceivableAllowance
69500000
CY2019Q4 us-gaap Loans And Leases Receivable Allowance
LoansAndLeasesReceivableAllowance
72965000
CY2019Q4 us-gaap Financing Receivable Allowance For Credit Losses Individually Evaluated For Impairment1
FinancingReceivableAllowanceForCreditLossesIndividuallyEvaluatedForImpairment1
0
CY2019Q4 us-gaap Financing Receivable Allowance For Credit Losses Collectively Evaluated For Impairment
FinancingReceivableAllowanceForCreditLossesCollectivelyEvaluatedForImpairment
72965000
CY2019Q4 us-gaap Loans And Leases Receivable Net Of Deferred Income
LoansAndLeasesReceivableNetOfDeferredIncome
7136098000
CY2018Q4 us-gaap Loans And Leases Receivable Allowance
LoansAndLeasesReceivableAllowance
72505000
CY2018Q4 us-gaap Financing Receivable Allowance For Credit Losses Individually Evaluated For Impairment1
FinancingReceivableAllowanceForCreditLossesIndividuallyEvaluatedForImpairment1
25000
CY2018Q4 us-gaap Financing Receivable Allowance For Credit Losses Collectively Evaluated For Impairment
FinancingReceivableAllowanceForCreditLossesCollectivelyEvaluatedForImpairment
72480000
CY2018Q4 us-gaap Loans And Leases Receivable Net Of Deferred Income
LoansAndLeasesReceivableNetOfDeferredIncome
6887709000
CY2019Q4 us-gaap Financing Receivable Recorded Investment Past Due
FinancingReceivableRecordedInvestmentPastDue
34803000
CY2019Q4 us-gaap Financing Receivable Recorded Investment Nonaccrual Status
FinancingReceivableRecordedInvestmentNonaccrualStatus
25174000
CY2019Q4 us-gaap Financing Receivable Recorded Investment Current
FinancingReceivableRecordedInvestmentCurrent
7076121000
CY2019Q4 us-gaap Loans And Leases Receivable Net Of Deferred Income
LoansAndLeasesReceivableNetOfDeferredIncome
7136098000
CY2018Q4 us-gaap Financing Receivable Recorded Investment Past Due
FinancingReceivableRecordedInvestmentPastDue
38067000
CY2018Q4 us-gaap Financing Receivable Recorded Investment Nonaccrual Status
FinancingReceivableRecordedInvestmentNonaccrualStatus
25487000
CY2018Q4 us-gaap Financing Receivable Recorded Investment Current
FinancingReceivableRecordedInvestmentCurrent
6824155000
CY2018Q4 us-gaap Loans And Leases Receivable Net Of Deferred Income
LoansAndLeasesReceivableNetOfDeferredIncome
6887709000
CY2019Q4 nbtb Financing Receivable Classified Grading Threshold Balance For Classified Loans To Be Individually Evaluated For Impairment
FinancingReceivableClassifiedGradingThresholdBalanceForClassifiedLoansToBeIndividuallyEvaluatedForImpairment
1000000.0
CY2019Q2 nbtb Financing Receivable Classified Grading Threshold Balance For Classified Loans To Be Individually Evaluated For Impairment
FinancingReceivableClassifiedGradingThresholdBalanceForClassifiedLoansToBeIndividuallyEvaluatedForImpairment
750000
CY2019Q4 us-gaap Impaired Financing Receivable Recorded Investment
ImpairedFinancingReceivableRecordedInvestment
18253000
CY2019Q4 us-gaap Impaired Financing Receivable Unpaid Principal Balance
ImpairedFinancingReceivableUnpaidPrincipalBalance
22541000
CY2018Q4 nbtb Financing Receivable Acquired Loans Individually Evaluated For Impairment
FinancingReceivableAcquiredLoansIndividuallyEvaluatedForImpairment
0
CY2019Q4 nbtb Financing Receivable Acquired Loans Individually Evaluated For Impairment
FinancingReceivableAcquiredLoansIndividuallyEvaluatedForImpairment
0
CY2019 us-gaap Impaired Financing Receivable Average Recorded Investment
ImpairedFinancingReceivableAverageRecordedInvestment
19733000
CY2019 us-gaap Impaired Financing Receivable Interest Income Accrual Method
ImpairedFinancingReceivableInterestIncomeAccrualMethod
891000
CY2018 us-gaap Impaired Financing Receivable Average Recorded Investment
ImpairedFinancingReceivableAverageRecordedInvestment
20429000
CY2018 us-gaap Impaired Financing Receivable Interest Income Accrual Method
ImpairedFinancingReceivableInterestIncomeAccrualMethod
901000
CY2017 us-gaap Impaired Financing Receivable Average Recorded Investment
ImpairedFinancingReceivableAverageRecordedInvestment
23238000
CY2017 us-gaap Impaired Financing Receivable Interest Income Accrual Method
ImpairedFinancingReceivableInterestIncomeAccrualMethod
924000
CY2019 nbtb Threshold Period Past Due For Loans To Be Considered Nonperforming
ThresholdPeriodPastDueForLoansToBeConsideredNonperforming
P90D
CY2019Q4 us-gaap Deferred Tax Liabilities
DeferredTaxLiabilities
41427000
CY2018Q4 us-gaap Deferred Tax Liabilities
DeferredTaxLiabilities
28847000
CY2019Q4 us-gaap Deferred Tax Assets Liabilities Net
DeferredTaxAssetsLiabilitiesNet
2534000
CY2018Q4 us-gaap Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Share Based Compensation Cost
DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsShareBasedCompensationCost
2821000
CY2019Q4 us-gaap Deferred Tax Assets Other
DeferredTaxAssetsOther
1498000
CY2018Q4 us-gaap Deferred Tax Assets Other
DeferredTaxAssetsOther
1008000
CY2018Q4 us-gaap Deferred Tax Assets Net
DeferredTaxAssetsNet
37642000
CY2019Q4 nbtb Deferred Tax Liabilities Pension And Executive Retirement
DeferredTaxLiabilitiesPensionAndExecutiveRetirement
13014000
CY2018Q4 nbtb Deferred Tax Liabilities Pension And Executive Retirement
DeferredTaxLiabilitiesPensionAndExecutiveRetirement
10782000
CY2019Q4 nbtb Deferred Tax Liabilities Lease Right Of Use Asset
DeferredTaxLiabilitiesLeaseRightOfUseAsset
9259000
CY2018Q4 nbtb Deferred Tax Liabilities Lease Right Of Use Asset
DeferredTaxLiabilitiesLeaseRightOfUseAsset
0
CY2019Q4 us-gaap Deferred Tax Liabilities Goodwill And Intangible Assets Intangible Assets
DeferredTaxLiabilitiesGoodwillAndIntangibleAssetsIntangibleAssets
12202000
CY2018Q4 us-gaap Deferred Tax Liabilities Goodwill And Intangible Assets Intangible Assets
DeferredTaxLiabilitiesGoodwillAndIntangibleAssetsIntangibleAssets
11525000
CY2019Q4 us-gaap Deferred Tax Liabilities Property Plant And Equipment
DeferredTaxLiabilitiesPropertyPlantAndEquipment
5137000
CY2018Q4 us-gaap Deferred Tax Liabilities Property Plant And Equipment
DeferredTaxLiabilitiesPropertyPlantAndEquipment
4973000
CY2019Q4 us-gaap Deferred Tax Liabilities Unrealized Gains On Trading Securities
DeferredTaxLiabilitiesUnrealizedGainsOnTradingSecurities
1770000
CY2018Q4 us-gaap Deferred Tax Liabilities Unrealized Gains On Trading Securities
DeferredTaxLiabilitiesUnrealizedGainsOnTradingSecurities
0
CY2019Q4 us-gaap Deferred Tax Liabilities Other
DeferredTaxLiabilitiesOther
45000
CY2018Q4 us-gaap Deferred Tax Liabilities Other
DeferredTaxLiabilitiesOther
1567000
CY2018Q4 us-gaap Deferred Tax Assets Liabilities Net
DeferredTaxAssetsLiabilitiesNet
8795000
CY2018Q4 us-gaap Deferred Tax Assets Liabilities Net
DeferredTaxAssetsLiabilitiesNet
8795000
CY2017Q4 us-gaap Deferred Tax Assets Liabilities Net
DeferredTaxAssetsLiabilitiesNet
7293000
CY2019 nbtb Deferred Tax Assets Liabilities Net Increase Decrease In Net Deferred Tax Asset
DeferredTaxAssetsLiabilitiesNetIncreaseDecreaseInNetDeferredTaxAsset
-6261000
CY2019 us-gaap Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate
IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate
32641000
CY2018 us-gaap Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate
IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate
28770000
CY2017 us-gaap Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate
IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate
44857000
CY2019 us-gaap Income Tax Reconciliation Tax Exempt Income
IncomeTaxReconciliationTaxExemptIncome
1233000
CY2018 us-gaap Income Tax Reconciliation Tax Exempt Income
IncomeTaxReconciliationTaxExemptIncome
1456000
CY2017 us-gaap Income Tax Reconciliation Tax Exempt Income
IncomeTaxReconciliationTaxExemptIncome
2303000
CY2019 nbtb Effective Income Tax Rate Reconciliation Net Increase In Cash Surrender Value Of Life Insurance Amount
EffectiveIncomeTaxRateReconciliationNetIncreaseInCashSurrenderValueOfLifeInsuranceAmount
927000
CY2018 nbtb Effective Income Tax Rate Reconciliation Net Increase In Cash Surrender Value Of Life Insurance Amount
EffectiveIncomeTaxRateReconciliationNetIncreaseInCashSurrenderValueOfLifeInsuranceAmount
973000
CY2017 nbtb Effective Income Tax Rate Reconciliation Net Increase In Cash Surrender Value Of Life Insurance Amount
EffectiveIncomeTaxRateReconciliationNetIncreaseInCashSurrenderValueOfLifeInsuranceAmount
1780000
CY2019 us-gaap Income Tax Reconciliation Tax Credits
IncomeTaxReconciliationTaxCredits
1458000
CY2019 us-gaap Financing Receivable Modifications Number Of Contracts2
FinancingReceivableModificationsNumberOfContracts2
37
CY2019 us-gaap Financing Receivable Modifications Pre Modification Recorded Investment2
FinancingReceivableModificationsPreModificationRecordedInvestment2
2508000
CY2019 us-gaap Financing Receivable Modifications Post Modification Recorded Investment2
FinancingReceivableModificationsPostModificationRecordedInvestment2
2603000
CY2018 us-gaap Financing Receivable Modifications Number Of Contracts2
FinancingReceivableModificationsNumberOfContracts2
46
CY2018 us-gaap Financing Receivable Modifications Pre Modification Recorded Investment2
FinancingReceivableModificationsPreModificationRecordedInvestment2
2285000
CY2018 us-gaap Financing Receivable Modifications Post Modification Recorded Investment2
FinancingReceivableModificationsPostModificationRecordedInvestment2
2280000
CY2019 us-gaap Financing Receivable Modifications Subsequent Default Number Of Contracts1
FinancingReceivableModificationsSubsequentDefaultNumberOfContracts1
55
CY2019 us-gaap Financing Receivable Modifications Subsequent Default Recorded Investment1
FinancingReceivableModificationsSubsequentDefaultRecordedInvestment1
2606000
CY2018 us-gaap Financing Receivable Modifications Subsequent Default Number Of Contracts1
FinancingReceivableModificationsSubsequentDefaultNumberOfContracts1
66
CY2018 us-gaap Financing Receivable Modifications Subsequent Default Recorded Investment1
FinancingReceivableModificationsSubsequentDefaultRecordedInvestment1
4055000
CY2018 nbtb Effective Income Tax Rate Reconciliation Change In Accounting Method
EffectiveIncomeTaxRateReconciliationChangeInAccountingMethod
5326000
CY2017 nbtb Effective Income Tax Rate Reconciliation Change In Accounting Method
EffectiveIncomeTaxRateReconciliationChangeInAccountingMethod
0
CY2019Q4 us-gaap Property Plant And Equipment Gross
PropertyPlantAndEquipmentGross
179910000
CY2018Q4 us-gaap Property Plant And Equipment Gross
PropertyPlantAndEquipmentGross
177385000
CY2019Q4 us-gaap Accumulated Depreciation Depletion And Amortization Property Plant And Equipment
AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment
104279000
CY2018Q4 us-gaap Accumulated Depreciation Depletion And Amortization Property Plant And Equipment
AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment
98415000
CY2019Q4 us-gaap Property Plant And Equipment Net
PropertyPlantAndEquipmentNet
75631000
CY2018Q4 us-gaap Property Plant And Equipment Net
PropertyPlantAndEquipmentNet
78970000
CY2019Q4 us-gaap Operating Lease Right Of Use Asset
OperatingLeaseRightOfUseAsset
34800000
CY2019Q4 us-gaap Operating Lease Liability
OperatingLeaseLiability
37300000
CY2019 us-gaap Operating Lease Cost
OperatingLeaseCost
7239000
CY2019 us-gaap Variable Lease Cost
VariableLeaseCost
2231000
CY2019 nbtb Effective Income Tax Rate Reconciliation Change In Accounting Method
EffectiveIncomeTaxRateReconciliationChangeInAccountingMethod
0
CY2018 us-gaap Goodwill Impairment Loss
GoodwillImpairmentLoss
0
CY2019 nbtb Effective Income Tax Rate Reconciliation Deduction Share Based Compensation Excess Tax Benefit Amount
EffectiveIncomeTaxRateReconciliationDeductionShareBasedCompensationExcessTaxBenefitAmount
342000
CY2018 nbtb Effective Income Tax Rate Reconciliation Deduction Share Based Compensation Excess Tax Benefit Amount
EffectiveIncomeTaxRateReconciliationDeductionShareBasedCompensationExcessTaxBenefitAmount
456000
CY2017 nbtb Effective Income Tax Rate Reconciliation Deduction Share Based Compensation Excess Tax Benefit Amount
EffectiveIncomeTaxRateReconciliationDeductionShareBasedCompensationExcessTaxBenefitAmount
1619000
CY2019 us-gaap Income Tax Reconciliation Other Adjustments
IncomeTaxReconciliationOtherAdjustments
-43000
CY2018 us-gaap Income Tax Reconciliation Other Adjustments
IncomeTaxReconciliationOtherAdjustments
325000
CY2017 us-gaap Income Tax Reconciliation Other Adjustments
IncomeTaxReconciliationOtherAdjustments
-316000
CY2019 us-gaap Income Tax Expense Benefit
IncomeTaxExpenseBenefit
34411000
CY2018 us-gaap Income Tax Expense Benefit
IncomeTaxExpenseBenefit
24436000
CY2018Q4 us-gaap Unrecognized Tax Benefits
UnrecognizedTaxBenefits
641000
CY2017Q4 us-gaap Unrecognized Tax Benefits
UnrecognizedTaxBenefits
665000
CY2019 us-gaap Unrecognized Tax Benefits Increases Resulting From Prior Period Tax Positions
UnrecognizedTaxBenefitsIncreasesResultingFromPriorPeriodTaxPositions
26000
CY2018 us-gaap Unrecognized Tax Benefits Increases Resulting From Prior Period Tax Positions
UnrecognizedTaxBenefitsIncreasesResultingFromPriorPeriodTaxPositions
27000
CY2019 us-gaap Unrecognized Tax Benefits Increases Resulting From Current Period Tax Positions
UnrecognizedTaxBenefitsIncreasesResultingFromCurrentPeriodTaxPositions
112000
CY2018 us-gaap Unrecognized Tax Benefits Increases Resulting From Current Period Tax Positions
UnrecognizedTaxBenefitsIncreasesResultingFromCurrentPeriodTaxPositions
108000
CY2019 us-gaap Operating Lease Payments
OperatingLeasePayments
6211000
CY2019 us-gaap Short Term Lease Cost
ShortTermLeaseCost
356000
CY2019 us-gaap Sublease Income
SubleaseIncome
448000
CY2019 us-gaap Lease Cost
LeaseCost
9378000
CY2019Q4 us-gaap Lessee Operating Lease Liability Payments Due Next Twelve Months
LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths
7435000
CY2019Q4 us-gaap Lessee Operating Lease Liability Payments Due Year Two
LesseeOperatingLeaseLiabilityPaymentsDueYearTwo
6646000
CY2019Q4 us-gaap Lessee Operating Lease Liability Payments Due Year Three
LesseeOperatingLeaseLiabilityPaymentsDueYearThree
5870000
CY2019Q4 us-gaap Lessee Operating Lease Liability Payments Due Year Four
LesseeOperatingLeaseLiabilityPaymentsDueYearFour
4969000
CY2019Q4 us-gaap Lessee Operating Lease Liability Payments Due Year Five
LesseeOperatingLeaseLiabilityPaymentsDueYearFive
4365000
CY2019Q4 us-gaap Lessee Operating Lease Liability Payments Due After Year Five
LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive
12876000
CY2019Q4 us-gaap Lessee Operating Lease Liability Payments Due
LesseeOperatingLeaseLiabilityPaymentsDue
42161000
CY2019Q4 us-gaap Lessee Operating Lease Liability Undiscounted Excess Amount
LesseeOperatingLeaseLiabilityUndiscountedExcessAmount
4838000
CY2019Q4 us-gaap Operating Lease Liability
OperatingLeaseLiability
37323000
CY2019Q4 us-gaap Operating Lease Weighted Average Remaining Lease Term1
OperatingLeaseWeightedAverageRemainingLeaseTerm1
P7Y8M8D
CY2019Q4 us-gaap Operating Lease Weighted Average Discount Rate Percent
OperatingLeaseWeightedAverageDiscountRatePercent
0.0300
CY2019 us-gaap Right Of Use Asset Obtained In Exchange For Operating Lease Liability
RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability
41008000
CY2019 us-gaap Operating Leases Rent Expense Net
OperatingLeasesRentExpenseNet
8000000.0
CY2018 us-gaap Operating Leases Rent Expense Net
OperatingLeasesRentExpenseNet
8600000
CY2017 us-gaap Operating Leases Rent Expense Net
OperatingLeasesRentExpenseNet
8500000
CY2018Q4 us-gaap Goodwill
Goodwill
274769000
CY2019 us-gaap Goodwill Acquired During Period
GoodwillAcquiredDuringPeriod
0
CY2019Q4 us-gaap Goodwill
Goodwill
274769000
CY2017Q4 us-gaap Goodwill
Goodwill
268043000
CY2018 us-gaap Goodwill Acquired During Period
GoodwillAcquiredDuringPeriod
6726000
CY2018Q4 us-gaap Goodwill
Goodwill
274769000
CY2019 us-gaap Defined Benefit Plan Assumptions Used Calculating Net Periodic Benefit Cost Expected Long Term Return On Assets
DefinedBenefitPlanAssumptionsUsedCalculatingNetPeriodicBenefitCostExpectedLongTermReturnOnAssets
0.0700
CY2018 us-gaap Defined Benefit Plan Assumptions Used Calculating Net Periodic Benefit Cost Expected Long Term Return On Assets
DefinedBenefitPlanAssumptionsUsedCalculatingNetPeriodicBenefitCostExpectedLongTermReturnOnAssets
0.0700
CY2017 us-gaap Defined Benefit Plan Assumptions Used Calculating Net Periodic Benefit Cost Expected Long Term Return On Assets
DefinedBenefitPlanAssumptionsUsedCalculatingNetPeriodicBenefitCostExpectedLongTermReturnOnAssets
0.0700
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
CY2017 us-gaap Defined Benefit Plan Assumptions Used Calculating Net Periodic Benefit Cost Rate Of Compensation Increase
DefinedBenefitPlanAssumptionsUsedCalculatingNetPeriodicBenefitCostRateOfCompensationIncrease
0.0300
CY2019 us-gaap Impairment Of Intangible Assets Finitelived
ImpairmentOfIntangibleAssetsFinitelived
0
CY2018 us-gaap Impairment Of Intangible Assets Finitelived
ImpairmentOfIntangibleAssetsFinitelived
0
CY2019 us-gaap Goodwill Impairment Loss
GoodwillImpairmentLoss
0
CY2019Q4 us-gaap Finite Lived Intangible Assets Gross
FiniteLivedIntangibleAssetsGross
43574000
CY2018Q4 us-gaap Finite Lived Intangible Assets Gross
FiniteLivedIntangibleAssetsGross
43598000
CY2019Q4 us-gaap Finite Lived Intangible Assets Accumulated Amortization
FiniteLivedIntangibleAssetsAccumulatedAmortization
31554000
CY2018Q4 us-gaap Finite Lived Intangible Assets Accumulated Amortization
FiniteLivedIntangibleAssetsAccumulatedAmortization
27999000
CY2019Q4 us-gaap Intangible Assets Net Excluding Goodwill
IntangibleAssetsNetExcludingGoodwill
12020000
CY2018Q4 us-gaap Intangible Assets Net Excluding Goodwill
IntangibleAssetsNetExcludingGoodwill
15599000
CY2019 us-gaap Amortization Of Intangible Assets
AmortizationOfIntangibleAssets
3600000
CY2018 us-gaap Amortization Of Intangible Assets
AmortizationOfIntangibleAssets
4000000.0
CY2017 us-gaap Amortization Of Intangible Assets
AmortizationOfIntangibleAssets
4000000.0
CY2019Q4 us-gaap Finite Lived Intangible Assets Amortization Expense Next Twelve Months
FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths
3000000.0
CY2019Q4 us-gaap Finite Lived Intangible Assets Amortization Expense Year Two
FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo
2300000
CY2019Q4 us-gaap Finite Lived Intangible Assets Amortization Expense Year Three
FiniteLivedIntangibleAssetsAmortizationExpenseYearThree
1800000
CY2019Q4 us-gaap Finite Lived Intangible Assets Amortization Expense Year Four
FiniteLivedIntangibleAssetsAmortizationExpenseYearFour
1400000
CY2019Q4 us-gaap Finite Lived Intangible Assets Amortization Expense Year Five
FiniteLivedIntangibleAssetsAmortizationExpenseYearFive
1100000
CY2019Q4 us-gaap Finite Lived Intangible Assets Amortization Expense After Year Five
FiniteLivedIntangibleAssetsAmortizationExpenseAfterYearFive
2400000
CY2019Q4 us-gaap Time Deposit Maturities Year One
TimeDepositMaturitiesYearOne
554132000
CY2019Q4 us-gaap Time Deposit Maturities Year Two
TimeDepositMaturitiesYearTwo
220769000
CY2019Q4 us-gaap Time Deposit Maturities Year Three
TimeDepositMaturitiesYearThree
50593000
CY2019Q4 us-gaap Defined Benefit Plan Weighted Average Asset Allocations
DefinedBenefitPlanWeightedAverageAssetAllocations
1
CY2018Q4 us-gaap Defined Benefit Plan Weighted Average Asset Allocations
DefinedBenefitPlanWeightedAverageAssetAllocations
1
CY2018Q4 nbtb Defined Benefit Plan Assumptions Used Calculating Benefit Obligation Expected Long Term Return On Plan Assets
DefinedBenefitPlanAssumptionsUsedCalculatingBenefitObligationExpectedLongTermReturnOnPlanAssets
0.070
CY2019Q4 nbtb Defined Benefit Plan Assumptions Used Calculating Benefit Obligation Expected Long Term Return On Plan Assets
DefinedBenefitPlanAssumptionsUsedCalculatingBenefitObligationExpectedLongTermReturnOnPlanAssets
0.070
CY2018Q4 us-gaap Other Postretirement Defined Benefit Plan Liabilities Current And Noncurrent
OtherPostretirementDefinedBenefitPlanLiabilitiesCurrentAndNoncurrent
2000000.0
CY2018Q4 us-gaap Federal Home Loan Bank Advances Maturities Summary Due Within One Year Of Balance Sheet Date
FederalHomeLoanBankAdvancesMaturitiesSummaryDueWithinOneYearOfBalanceSheetDate
20000000
CY2018Q4 us-gaap Federal Home Loan Bank Advances Maturities Summary Average Interest Rate Of Amounts Due Within One Year Of Balance Sheet Date
FederalHomeLoanBankAdvancesMaturitiesSummaryAverageInterestRateOfAmountsDueWithinOneYearOfBalanceSheetDate
0.0196
CY2019Q4 us-gaap Federal Home Loan Bank Advances Maturities Summary Due Within One Year Of Balance Sheet Date
FederalHomeLoanBankAdvancesMaturitiesSummaryDueWithinOneYearOfBalanceSheetDate
25000000
CY2019Q4 us-gaap Federal Home Loan Bank Advances Maturities Summary Average Interest Rate Of Amounts Due Within One Year Of Balance Sheet Date
FederalHomeLoanBankAdvancesMaturitiesSummaryAverageInterestRateOfAmountsDueWithinOneYearOfBalanceSheetDate
0.0234
CY2019Q4 us-gaap Time Deposit Maturities Year Four
TimeDepositMaturitiesYearFour
15064000
CY2019Q4 us-gaap Time Deposit Maturities Year Five
TimeDepositMaturitiesYearFive
20453000
CY2019Q4 us-gaap Time Deposit Maturities After Year Five
TimeDepositMaturitiesAfterYearFive
182000
CY2019Q4 us-gaap Time Deposits
TimeDeposits
861193000
CY2019Q4 nbtb Time Deposits250000 Or More
TimeDeposits250000OrMore
140400000
CY2018Q4 nbtb Time Deposits250000 Or More
TimeDeposits250000OrMore
146100000
CY2019Q4 us-gaap Short Term Borrowings
ShortTermBorrowings
655300000
CY2018Q4 us-gaap Short Term Borrowings
ShortTermBorrowings
871700000
CY2019Q4 us-gaap Line Of Credit Facility Current Borrowing Capacity
LineOfCreditFacilityCurrentBorrowingCapacity
2400000000
CY2018Q4 us-gaap Line Of Credit Facility Current Borrowing Capacity
LineOfCreditFacilityCurrentBorrowingCapacity
1900000000
CY2018Q4 us-gaap Federal Home Loan Bank Advances Maturities Summary Due From One To Two Years Of Balance Sheet Date
FederalHomeLoanBankAdvancesMaturitiesSummaryDueFromOneToTwoYearsOfBalanceSheetDate
25000000
CY2018Q4 us-gaap Federal Home Loan Bank Advances Maturities Summary Average Interest Rate One To Two Years From Balance Sheet Date
FederalHomeLoanBankAdvancesMaturitiesSummaryAverageInterestRateOneToTwoYearsFromBalanceSheetDate
0.0234
CY2019Q4 us-gaap Federal Home Loan Bank Advances Maturities Summary Due From One To Two Years Of Balance Sheet Date
FederalHomeLoanBankAdvancesMaturitiesSummaryDueFromOneToTwoYearsOfBalanceSheetDate
25021000
CY2019Q4 us-gaap Federal Home Loan Bank Advances Maturities Summary Average Interest Rate One To Two Years From Balance Sheet Date
FederalHomeLoanBankAdvancesMaturitiesSummaryAverageInterestRateOneToTwoYearsFromBalanceSheetDate
0.0256
CY2018Q4 us-gaap Federal Home Loan Bank Advances Maturities Summary Due From Two To Three Years Of Balance Sheet Date
FederalHomeLoanBankAdvancesMaturitiesSummaryDueFromTwoToThreeYearsOfBalanceSheetDate
25039000
CY2018Q4 us-gaap Federal Home Loan Bank Advances Maturities Summary Average Interest Rate Two To Three Years From Balance Sheet Date
FederalHomeLoanBankAdvancesMaturitiesSummaryAverageInterestRateTwoToThreeYearsFromBalanceSheetDate
0.0256
CY2019Q4 us-gaap Federal Home Loan Bank Advances Maturities Summary Due From Two To Three Years Of Balance Sheet Date
FederalHomeLoanBankAdvancesMaturitiesSummaryDueFromTwoToThreeYearsOfBalanceSheetDate
10598000
CY2019Q4 us-gaap Federal Home Loan Bank Advances Maturities Summary Average Interest Rate Two To Three Years From Balance Sheet Date
FederalHomeLoanBankAdvancesMaturitiesSummaryAverageInterestRateTwoToThreeYearsFromBalanceSheetDate
0.0253
CY2018Q4 us-gaap Federal Home Loan Bank Advances Maturities Summary Due From Three To Four Years Of Balance Sheet Date
FederalHomeLoanBankAdvancesMaturitiesSummaryDueFromThreeToFourYearsOfBalanceSheetDate
0
CY2018Q4 us-gaap Federal Home Loan Bank Advances Maturities Summary Average Interest Rate Three To Four Years From Balance Sheet Date
FederalHomeLoanBankAdvancesMaturitiesSummaryAverageInterestRateThreeToFourYearsFromBalanceSheetDate
0
CY2019Q4 nbtb Federal Home Loan Bank Advances Maturities Summary Due From Eleven To Twelve Years Of Balance Sheet Date
FederalHomeLoanBankAdvancesMaturitiesSummaryDueFromElevenToTwelveYearsOfBalanceSheetDate
3592000
CY2019Q4 nbtb Federal Home Loan Bank Advances Maturities Summary Average Interest Rate Eleven To Twelve Years From Balance Sheet Date
FederalHomeLoanBankAdvancesMaturitiesSummaryAverageInterestRateElevenToTwelveYearsFromBalanceSheetDate
0.0245
CY2018Q4 nbtb Federal Home Loan Bank Advances Maturities Summary Due From Twelve To Thirteen Years Of Balance Sheet Date
FederalHomeLoanBankAdvancesMaturitiesSummaryDueFromTwelveToThirteenYearsOfBalanceSheetDate
3685000
CY2018Q4 nbtb Federal Home Loan Bank Advances Maturities Summary Average Interest Rate Twelve To Thirteen Years From Balance Sheet Date
FederalHomeLoanBankAdvancesMaturitiesSummaryAverageInterestRateTwelveToThirteenYearsFromBalanceSheetDate
0.0245
CY2019Q4 us-gaap Advances From Federal Home Loan Banks
AdvancesFromFederalHomeLoanBanks
64211000
CY2018Q4 us-gaap Advances From Federal Home Loan Banks
AdvancesFromFederalHomeLoanBanks
73724000
CY2017 us-gaap Income Tax Expense Benefit
IncomeTaxExpenseBenefit
46010000
CY2017 us-gaap Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate
EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate
0.35
CY2018Q4 us-gaap Deferred Tax Assets Unrealized Losses On Availablefor Sale Securities Gross
DeferredTaxAssetsUnrealizedLossesOnAvailableforSaleSecuritiesGross
4893000
CY2018Q4 us-gaap Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Accrued Liabilities
DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAccruedLiabilities
913000
CY2019 us-gaap Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate
EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate
0.21
CY2017 nbtb Tax Cuts And Jobs Act Change In Tax Rate Income Tax Expense Benefit
TaxCutsAndJobsActChangeInTaxRateIncomeTaxExpenseBenefit
4400000
CY2019Q4 us-gaap Deferred Tax Assets Unrealized Losses On Availablefor Sale Securities Gross
DeferredTaxAssetsUnrealizedLossesOnAvailableforSaleSecuritiesGross
0
CY2019Q4 nbtb Minimum Assets For Bank Holding Companies To Be Subject To Same Capital Requirements As Insured Depository Institutions
MinimumAssetsForBankHoldingCompaniesToBeSubjectToSameCapitalRequirementsAsInsuredDepositoryInstitutions
500000000
CY2019 us-gaap Current Federal Tax Expense Benefit
CurrentFederalTaxExpenseBenefit
28475000
CY2019 us-gaap Current Income Tax Expense Benefit
CurrentIncomeTaxExpenseBenefit
36128000
CY2019Q4 us-gaap Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Share Based Compensation Cost
DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsShareBasedCompensationCost
3032000
CY2019Q4 us-gaap Deferred Tax Assets Net
DeferredTaxAssetsNet
43961000
CY2018 nbtb Deferred Tax Assets Liabilities Net Increase Decrease In Net Deferred Tax Asset
DeferredTaxAssetsLiabilitiesNetIncreaseDecreaseInNetDeferredTaxAsset
1502000
CY2018 us-gaap Unrecognized Tax Benefits Decreases Resulting From Prior Period Tax Positions
UnrecognizedTaxBenefitsDecreasesResultingFromPriorPeriodTaxPositions
159000
CY2019Q4 us-gaap Unrecognized Tax Benefits
UnrecognizedTaxBenefits
779000
CY2019Q4 us-gaap Unrecognized Tax Benefits That Would Impact Effective Tax Rate
UnrecognizedTaxBenefitsThatWouldImpactEffectiveTaxRate
615000
CY2018Q4 us-gaap Unrecognized Tax Benefits That Would Impact Effective Tax Rate
UnrecognizedTaxBenefitsThatWouldImpactEffectiveTaxRate
506000
CY2018Q4 us-gaap Unrecognized Tax Benefits
UnrecognizedTaxBenefits
641000
CY2019 us-gaap Income Tax Reconciliation State And Local Income Taxes
IncomeTaxReconciliationStateAndLocalIncomeTaxes
5773000
CY2018 us-gaap Income Tax Reconciliation State And Local Income Taxes
IncomeTaxReconciliationStateAndLocalIncomeTaxes
5051000
CY2017 us-gaap Income Tax Reconciliation State And Local Income Taxes
IncomeTaxReconciliationStateAndLocalIncomeTaxes
4107000
CY2019 us-gaap Effective Income Tax Rate Reconciliation Tax Cuts And Jobs Act Of2017 Amount
EffectiveIncomeTaxRateReconciliationTaxCutsAndJobsActOf2017Amount
0
CY2018 us-gaap Effective Income Tax Rate Reconciliation Tax Cuts And Jobs Act Of2017 Amount
EffectiveIncomeTaxRateReconciliationTaxCutsAndJobsActOf2017Amount
0
CY2017 us-gaap Effective Income Tax Rate Reconciliation Tax Cuts And Jobs Act Of2017 Amount
EffectiveIncomeTaxRateReconciliationTaxCutsAndJobsActOf2017Amount
4407000
CY2017 us-gaap Income Tax Expense Benefit
IncomeTaxExpenseBenefit
46010000
CY2019 us-gaap Unrecognized Tax Benefits Decreases Resulting From Prior Period Tax Positions
UnrecognizedTaxBenefitsDecreasesResultingFromPriorPeriodTaxPositions
0
CY2019 nbtb Transition Obligation Period Of Recognition
TransitionObligationPeriodOfRecognition
P20Y
CY2019Q4 nbtb Defined Benefit Plan Assumptions Used Calculating Benefit Obligation Expected Long Term Return On Plan Assets
DefinedBenefitPlanAssumptionsUsedCalculatingBenefitObligationExpectedLongTermReturnOnPlanAssets
0.0700
CY2018Q4 nbtb Defined Benefit Plan Assumptions Used Calculating Benefit Obligation Expected Long Term Return On Plan Assets
DefinedBenefitPlanAssumptionsUsedCalculatingBenefitObligationExpectedLongTermReturnOnPlanAssets
0.0700
CY2017Q4 nbtb Defined Benefit Plan Assumptions Used Calculating Benefit Obligation Expected Long Term Return On Plan Assets
DefinedBenefitPlanAssumptionsUsedCalculatingBenefitObligationExpectedLongTermReturnOnPlanAssets
0.0700
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
CY2017Q4 us-gaap Defined Benefit Plan Assumptions Used Calculating Benefit Obligation Rate Of Compensation Increase
DefinedBenefitPlanAssumptionsUsedCalculatingBenefitObligationRateOfCompensationIncrease
0.0300
CY2019Q4 us-gaap Defined Benefit Plan Expected Amortization Of Gain Loss Next Fiscal Year
DefinedBenefitPlanExpectedAmortizationOfGainLossNextFiscalYear
1600000
CY2019Q4 us-gaap Tier One Risk Based Capital To Risk Weighted Assets
TierOneRiskBasedCapitalToRiskWeightedAssets
0.1256
CY2019Q4 us-gaap Tier One Risk Based Capital Required For Capital Adequacy To Risk Weighted Assets
TierOneRiskBasedCapitalRequiredForCapitalAdequacyToRiskWeightedAssets
0.0600
CY2019Q4 nbtb Tier One Risk Based Capital Required For Capital Adequacy Plus Buffer To Risk Weighted Assets
TierOneRiskBasedCapitalRequiredForCapitalAdequacyPlusBufferToRiskWeightedAssets
0.08500
CY2019Q4 us-gaap Tier One Risk Based Capital Required To Be Well Capitalized To Risk Weighted Assets
TierOneRiskBasedCapitalRequiredToBeWellCapitalizedToRiskWeightedAssets
0.0800
CY2019Q4 us-gaap Defined Benefit Plan Ultimate Health Care Cost Trend Rate1
DefinedBenefitPlanUltimateHealthCareCostTrendRate1
0.038
CY2019 us-gaap Defined Benefit Plan Effect Of One Percentage Point Increase On Service And Interest Cost Components
DefinedBenefitPlanEffectOfOnePercentagePointIncreaseOnServiceAndInterestCostComponents
29000
CY2019 us-gaap Defined Benefit Plan Effect Of One Percentage Point Decrease On Service And Interest Cost Components1
DefinedBenefitPlanEffectOfOnePercentagePointDecreaseOnServiceAndInterestCostComponents1
25000
CY2019 us-gaap Defined Benefit Plan Effect Of One Percentage Point Increase On Accumulated Postretirement Benefit Obligation
DefinedBenefitPlanEffectOfOnePercentagePointIncreaseOnAccumulatedPostretirementBenefitObligation
628000
CY2019 us-gaap Defined Benefit Plan Effect Of One Percentage Point Decrease On Accumulated Postretirement Benefit Obligation1
DefinedBenefitPlanEffectOfOnePercentagePointDecreaseOnAccumulatedPostretirementBenefitObligation1
543000
CY2019Q4 us-gaap Other Postretirement Defined Benefit Plan Liabilities Current And Noncurrent
OtherPostretirementDefinedBenefitPlanLiabilitiesCurrentAndNoncurrent
1700000
CY2018 us-gaap Other Postretirement Benefit Expense
OtherPostretirementBenefitExpense
100000
CY2019 us-gaap Other Postretirement Benefit Expense
OtherPostretirementBenefitExpense
100000
CY2017 us-gaap Other Postretirement Benefit Expense
OtherPostretirementBenefitExpense
100000
CY2019Q4 us-gaap Capital
Capital
1037041000
CY2019Q4 us-gaap Accumulated Other Comprehensive Income Loss Available For Sale Securities Adjustment Net Of Tax
AccumulatedOtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax
2683000
CY2018Q4 us-gaap Accumulated Other Comprehensive Income Loss Available For Sale Securities Adjustment Net Of Tax
AccumulatedOtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax
-17306000
CY2017Q4 us-gaap Accumulated Other Comprehensive Income Loss Available For Sale Securities Adjustment Net Of Tax
AccumulatedOtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax
-8937000
CY2019Q4 us-gaap Capital To Risk Weighted Assets
CapitalToRiskWeightedAssets
0.1352
CY2019Q4 us-gaap Capital Required For Capital Adequacy To Risk Weighted Assets
CapitalRequiredForCapitalAdequacyToRiskWeightedAssets
0.0800
CY2019Q4 nbtb Capital Required For Capital Adequacy Plus Buffer To Risk Weighted Assets
CapitalRequiredForCapitalAdequacyPlusBufferToRiskWeightedAssets
0.10500
CY2019Q4 us-gaap Capital Required To Be Well Capitalized To Risk Weighted Assets
CapitalRequiredToBeWellCapitalizedToRiskWeightedAssets
0.1000
CY2019Q4 us-gaap Share Based Compensation Arrangement By Share Based Payment Award Number Of Shares Available For Grant
ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant
988494
CY2019Q4 us-gaap Accumulated Other Comprehensive Income Loss Defined Benefit Pension And Other Postretirement Plans Net Of Tax
AccumulatedOtherComprehensiveIncomeLossDefinedBenefitPensionAndOtherPostretirementPlansNetOfTax
21677000
CY2018Q4 us-gaap Accumulated Other Comprehensive Income Loss Defined Benefit Pension And Other Postretirement Plans Net Of Tax
AccumulatedOtherComprehensiveIncomeLossDefinedBenefitPensionAndOtherPostretirementPlansNetOfTax
27689000
CY2017Q4 us-gaap Accumulated Other Comprehensive Income Loss Defined Benefit Pension And Other Postretirement Plans Net Of Tax
AccumulatedOtherComprehensiveIncomeLossDefinedBenefitPensionAndOtherPostretirementPlansNetOfTax
15284000
CY2019Q4 us-gaap Accumulated Other Comprehensive Income Loss Cumulative Changes In Net Gain Loss From Cash Flow Hedges Effect Net Of Tax
AccumulatedOtherComprehensiveIncomeLossCumulativeChangesInNetGainLossFromCashFlowHedgesEffectNetOfTax
-32000
CY2018Q4 us-gaap Accumulated Other Comprehensive Income Loss Cumulative Changes In Net Gain Loss From Cash Flow Hedges Effect Net Of Tax
AccumulatedOtherComprehensiveIncomeLossCumulativeChangesInNetGainLossFromCashFlowHedgesEffectNetOfTax
1821000
CY2017Q4 us-gaap Accumulated Other Comprehensive Income Loss Cumulative Changes In Net Gain Loss From Cash Flow Hedges Effect Net Of Tax
AccumulatedOtherComprehensiveIncomeLossCumulativeChangesInNetGainLossFromCashFlowHedgesEffectNetOfTax
2144000
CY2019Q4 us-gaap Accumulated Other Comprehensive Income Loss Net Of Tax
AccumulatedOtherComprehensiveIncomeLossNetOfTax
-19026000
CY2018Q4 us-gaap Accumulated Other Comprehensive Income Loss Net Of Tax
AccumulatedOtherComprehensiveIncomeLossNetOfTax
-43174000
CY2017Q4 us-gaap Accumulated Other Comprehensive Income Loss Net Of Tax
AccumulatedOtherComprehensiveIncomeLossNetOfTax
-22077000
CY2019 nbtb Preceding Period Of Retained Net Profits For Approval Of Office Of Comptroller Of Currency
PrecedingPeriodOfRetainedNetProfitsForApprovalOfOfficeOfComptrollerOfCurrency
P2Y
CY2019Q4 us-gaap Statutory Accounting Practices Statutory Amount Available For Dividend Payments
StatutoryAccountingPracticesStatutoryAmountAvailableForDividendPayments
175000000.0
CY2019Q4 us-gaap Stock Repurchase Program Remaining Number Of Shares Authorized To Be Repurchased
StockRepurchaseProgramRemainingNumberOfSharesAuthorizedToBeRepurchased
1000000
CY2019Q4 us-gaap Tier One Leverage Capital
TierOneLeverageCapital
963147000
CY2019Q4 us-gaap Tier One Leverage Capital To Average Assets
TierOneLeverageCapitalToAverageAssets
0.1033
CY2019Q4 us-gaap Tier One Leverage Capital Required For Capital Adequacy To Average Assets
TierOneLeverageCapitalRequiredForCapitalAdequacyToAverageAssets
0.0400
CY2019Q4 us-gaap Tier One Leverage Capital Required To Be Well Capitalized To Average Assets
TierOneLeverageCapitalRequiredToBeWellCapitalizedToAverageAssets
0.0500
CY2019Q4 us-gaap Common Equity Tier One Capital
CommonEquityTierOneCapital
866147000
CY2019Q4 us-gaap Common Equity Tier One Capital Ratio
CommonEquityTierOneCapitalRatio
0.1129
CY2019Q4 nbtb Common Equity Tier One Risk Based Capital To Risk Weighted Assets Required For Capital Adequacy
CommonEquityTierOneRiskBasedCapitalToRiskWeightedAssetsRequiredForCapitalAdequacy
0.0450
CY2019Q4 nbtb Common Equity Tier One Risk Based Capital To Risk Weighted Assets Required For Capital Adequacy Plus Buffer
CommonEquityTierOneRiskBasedCapitalToRiskWeightedAssetsRequiredForCapitalAdequacyPlusBuffer
0.07000
CY2019Q4 nbtb Common Equity Tier One Risk Based Capital To Risk Weighted Assets Required To Be Well Capitalized
CommonEquityTierOneRiskBasedCapitalToRiskWeightedAssetsRequiredToBeWellCapitalized
0.0650
CY2019Q4 us-gaap Tier One Risk Based Capital
TierOneRiskBasedCapital
963147000
CY2019 us-gaap Weighted Average Number Of Shares Outstanding Basic
WeightedAverageNumberOfSharesOutstandingBasic
43815
CY2019 us-gaap Earnings Per Share Basic
EarningsPerShareBasic
2.76
CY2018 us-gaap Net Income Loss
NetIncomeLoss
112566000
CY2018Q4 us-gaap Tier One Leverage Capital
TierOneLeverageCapital
880448000
CY2018Q4 us-gaap Tier One Leverage Capital To Average Assets
TierOneLeverageCapitalToAverageAssets
0.0952
CY2018Q4 us-gaap Tier One Leverage Capital Required For Capital Adequacy To Average Assets
TierOneLeverageCapitalRequiredForCapitalAdequacyToAverageAssets
0.0400
CY2018Q4 us-gaap Tier One Leverage Capital Required To Be Well Capitalized To Average Assets
TierOneLeverageCapitalRequiredToBeWellCapitalizedToAverageAssets
0.0500
CY2018Q4 us-gaap Common Equity Tier One Capital
CommonEquityTierOneCapital
783448000
CY2018Q4 us-gaap Common Equity Tier One Capital Ratio
CommonEquityTierOneCapitalRatio
0.1049
CY2018Q4 nbtb Common Equity Tier One Risk Based Capital To Risk Weighted Assets Required For Capital Adequacy
CommonEquityTierOneRiskBasedCapitalToRiskWeightedAssetsRequiredForCapitalAdequacy
0.0450
CY2018Q4 nbtb Common Equity Tier One Risk Based Capital To Risk Weighted Assets Required For Capital Adequacy Plus Buffer
CommonEquityTierOneRiskBasedCapitalToRiskWeightedAssetsRequiredForCapitalAdequacyPlusBuffer
0.06375
CY2018Q4 nbtb Common Equity Tier One Risk Based Capital To Risk Weighted Assets Required To Be Well Capitalized
CommonEquityTierOneRiskBasedCapitalToRiskWeightedAssetsRequiredToBeWellCapitalized
0.0650
CY2018Q4 us-gaap Tier One Risk Based Capital
TierOneRiskBasedCapital
880448000
CY2018Q4 us-gaap Tier One Risk Based Capital To Risk Weighted Assets
TierOneRiskBasedCapitalToRiskWeightedAssets
0.1179
CY2018Q4 us-gaap Tier One Risk Based Capital Required For Capital Adequacy To Risk Weighted Assets
TierOneRiskBasedCapitalRequiredForCapitalAdequacyToRiskWeightedAssets
0.0600
CY2018Q4 nbtb Tier One Risk Based Capital Required For Capital Adequacy Plus Buffer To Risk Weighted Assets
TierOneRiskBasedCapitalRequiredForCapitalAdequacyPlusBufferToRiskWeightedAssets
0.07875
CY2018Q4 us-gaap Tier One Risk Based Capital Required To Be Well Capitalized To Risk Weighted Assets
TierOneRiskBasedCapitalRequiredToBeWellCapitalizedToRiskWeightedAssets
0.0800
CY2018Q4 us-gaap Capital
Capital
954232000
CY2018Q4 us-gaap Capital To Risk Weighted Assets
CapitalToRiskWeightedAssets
0.1278
CY2018Q4 us-gaap Capital Required For Capital Adequacy To Risk Weighted Assets
CapitalRequiredForCapitalAdequacyToRiskWeightedAssets
0.0800
CY2018Q4 nbtb Capital Required For Capital Adequacy Plus Buffer To Risk Weighted Assets
CapitalRequiredForCapitalAdequacyPlusBufferToRiskWeightedAssets
0.09875
CY2018Q4 us-gaap Capital Required To Be Well Capitalized To Risk Weighted Assets
CapitalRequiredToBeWellCapitalizedToRiskWeightedAssets
0.1000
CY2019 us-gaap Net Income Loss
NetIncomeLoss
121021000
CY2018 us-gaap Weighted Average Number Of Shares Outstanding Basic
WeightedAverageNumberOfSharesOutstandingBasic
43701
CY2018 us-gaap Earnings Per Share Basic
EarningsPerShareBasic
2.58
CY2017 us-gaap Net Income Loss
NetIncomeLoss
82151000
CY2017 us-gaap Weighted Average Number Of Shares Outstanding Basic
WeightedAverageNumberOfSharesOutstandingBasic
43575
CY2017 us-gaap Earnings Per Share Basic
EarningsPerShareBasic
1.89
CY2019 us-gaap Weighted Average Number Diluted Shares Outstanding Adjustment
WeightedAverageNumberDilutedSharesOutstandingAdjustment
309
CY2018 us-gaap Weighted Average Number Diluted Shares Outstanding Adjustment
WeightedAverageNumberDilutedSharesOutstandingAdjustment
319
CY2017 us-gaap Weighted Average Number Diluted Shares Outstanding Adjustment
WeightedAverageNumberDilutedSharesOutstandingAdjustment
330
CY2019 us-gaap Net Income Loss
NetIncomeLoss
121021000
CY2019 us-gaap Weighted Average Number Of Diluted Shares Outstanding
WeightedAverageNumberOfDilutedSharesOutstanding
44124
CY2019 us-gaap Earnings Per Share Diluted
EarningsPerShareDiluted
2.74
CY2018 us-gaap Net Income Loss
NetIncomeLoss
112566000
CY2018 us-gaap Weighted Average Number Of Diluted Shares Outstanding
WeightedAverageNumberOfDilutedSharesOutstanding
44020
CY2018 us-gaap Earnings Per Share Diluted
EarningsPerShareDiluted
2.56
CY2017 us-gaap Net Income Loss
NetIncomeLoss
82151000
CY2017 us-gaap Weighted Average Number Of Diluted Shares Outstanding
WeightedAverageNumberOfDilutedSharesOutstanding
43905
CY2017 us-gaap Earnings Per Share Diluted
EarningsPerShareDiluted
1.87
CY2019 us-gaap Reclassification From Accumulated Other Comprehensive Income Current Period Net Of Tax
ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTax
1117000
CY2018 us-gaap Reclassification From Accumulated Other Comprehensive Income Current Period Net Of Tax
ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTax
4617000
CY2017 us-gaap Reclassification From Accumulated Other Comprehensive Income Current Period Net Of Tax
ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTax
1131000
CY2019Q4 nbtb Percentage Of Companys Loans Secured By Real Estate
PercentageOfCompanysLoansSecuredByRealEstate
0.60
CY2019 nbtb Maintenance Period Basis Federal Reserve Bank
MaintenancePeriodBasisFederalReserveBank
P14D
CY2019Q4 nbtb Average Reserve Balances With Federal Reserve Bank
AverageReserveBalancesWithFederalReserveBank
37300000
CY2019 us-gaap Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Transfers Out Of Level3
FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetTransfersOutOfLevel3
0
CY2019 us-gaap Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Transfers Into Level3
FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetTransfersIntoLevel3
0
CY2019Q4 us-gaap Fair Value Assets Level2 To Level1 Transfers Amount
FairValueAssetsLevel2ToLevel1TransfersAmount
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
CY2018Q4 us-gaap Fair Value Assets Level2 To Level1 Transfers Amount
FairValueAssetsLevel2ToLevel1TransfersAmount
4000000.0
CY2019Q4 nbtb Loans And Leases Receivable Collateral Dependent Impaired Loans
LoansAndLeasesReceivableCollateralDependentImpairedLoans
0
CY2018Q4 nbtb Loans And Leases Receivable Collateral Dependent Impaired Loans
LoansAndLeasesReceivableCollateralDependentImpairedLoans
200000
CY2018Q4 nbtb Loans And Leases Receivable Collateral Dependent Loans Specific Reserves
LoansAndLeasesReceivableCollateralDependentLoansSpecificReserves
25000

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