$SRCE
1ST SOURCE CORP Stock $srce

$srce Overview Financials Valuation SEC Filings Company Website

2019 Q4 Form 10-K Financial Statement

#000003478220000035 Filed on February 20, 2020

Income Statement

Concept	2019 Q4	2018 Q4	2017 Q4
Revenue
YoY Change
Cost Of Revenue
YoY Change
Gross Profit
YoY Change
Gross Profit Margin
Selling, General & Admin
YoY Change
% of Gross Profit
Research & Development
YoY Change
% of Gross Profit
Depreciation & Amortization	$7.800M	$8.400M	$8.300M
YoY Change	-7.14%	1.2%	13.7%
% of Gross Profit
Operating Expenses
YoY Change
Operating Profit
YoY Change
Interest Expense
YoY Change
% of Operating Profit
Other Income/Expense, Net
YoY Change
Pretax Income	$28.58M	$27.61M	$23.55M
YoY Change	3.51%	17.24%	1.33%
Income Tax	$6.620M	$6.160M	$8.170M
% Of Pretax Income	23.16%	22.31%	34.69%
Net Earnings	$21.94M	$21.45M	$17.99M
YoY Change	2.28%	19.23%	18.12%
Net Earnings / Revenue
Basic Earnings Per Share
Diluted Earnings Per Share	$860.1K	$828.8K	$693.5K
COMMON SHARES
Basic Shares Outstanding	25.51M shares	25.97M shares	25.94M shares
Diluted Shares Outstanding

Balance Sheet

Concept	2019 Q4	2018 Q4	2017 Q4
SHORT-TERM ASSETS
Cash & Short-Term Investments
YoY Change
Cash & Equivalents	$83.37M	$99.08M	$78.03M
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	$52.22M	$52.14M	$54.61M
YoY Change	0.15%	-4.53%	-3.7%
Goodwill	$83.87M	$83.87M	$83.68M
YoY Change	0.0%	0.23%	0.0%
Intangibles
YoY Change
Long-Term Investments
YoY Change
Other Assets
YoY Change
Total Long-Term Assets
YoY Change
TOTAL ASSETS
Total Short-Term Assets
Total Long-Term Assets
Total Assets	$6.623B	$6.294B	$5.887B
YoY Change	5.23%	6.9%	7.31%
SHORT-TERM LIABILITIES
YoY Change
Accounts Payable
YoY Change
Accrued Expenses	$140.5M	$78.60M	$72.60M
YoY Change	78.75%	8.26%	32.48%
Deferred Revenue
YoY Change
Short-Term Debt	$145.9M	$199.3M	$214.6M
YoY Change	-26.81%	-7.11%	-26.49%
Long-Term Debt Due
YoY Change
Total Short-Term Liabilities	$140.5M	$78.60M	$72.60M
YoY Change	78.75%	8.26%	32.48%
LONG-TERM LIABILITIES
Long-Term Debt	$130.4M	$129.9M	$128.8M
YoY Change	0.38%	0.85%	-3.23%
Other Long-Term Liabilities
YoY Change
Total Long-Term Liabilities	$130.4M	$129.9M	$128.8M
YoY Change	0.38%	0.85%	-3.23%
TOTAL LIABILITIES
Total Short-Term Liabilities	$140.5M	$78.60M	$72.60M
Total Long-Term Liabilities	$130.4M	$129.9M	$128.8M
Total Liabilities	$5.774B	$5.530B	$5.169B
YoY Change	4.41%	6.99%	7.38%
SHAREHOLDERS EQUITY
Retained Earnings	$463.3M	$399.0M	$340.0M
YoY Change	16.11%	17.36%	16.9%
Common Stock	$436.5M	$436.5M	$436.5M
YoY Change	0.0%	0.0%	0.0%
Preferred Stock
YoY Change
Treasury Stock (at cost)	$76.70M	$62.76M	$54.63M
YoY Change	22.21%	14.89%	-2.55%
Treasury Stock Shares	2.696M shares	2.422M shares	2.269M shares
Shareholders Equity	$828.3M	$762.1M	$718.5M
YoY Change
Total Liabilities & Shareholders Equity	$6.623B	$6.294B	$5.887B
YoY Change	5.23%	6.9%	7.31%

Cashflow Statement

Concept	2019 Q4	2018 Q4	2017 Q4
OPERATING ACTIVITIES
Net Income	$21.94M	$21.45M	$17.99M
YoY Change	2.28%	19.23%	18.12%
Depreciation, Depletion And Amortization	$7.800M	$8.400M	$8.300M
YoY Change	-7.14%	1.2%	13.7%
Cash From Operating Activities	$51.50M	$67.40M	$18.70M
YoY Change	-23.59%	260.43%	-36.39%
INVESTING ACTIVITIES
Capital Expenditures	-$400.0K	-$3.700M	-$2.900M
YoY Change	-89.19%	27.59%	-70.41%
Acquisitions
YoY Change
Other Investing Activities	-$2.200M	-$33.80M	-$108.0M
YoY Change	-93.49%	-68.7%	144.34%
Cash From Investing Activities	-$2.700M	-$37.40M	-$110.9M
YoY Change	-92.78%	-66.28%	104.99%
FINANCING ACTIVITIES
Cash Dividend Paid
YoY Change
Common Stock Issuance & Retirement, Net
YoY Change
Debt Paid & Issued, Net
YoY Change
Cash From Financing Activities	-92.90M	-44.80M	70.90M
YoY Change	107.37%	-163.19%	90.08%
NET CHANGE
Cash From Operating Activities	51.50M	67.40M	18.70M
Cash From Investing Activities	-2.700M	-37.40M	-110.9M
Cash From Financing Activities	-92.90M	-44.80M	70.90M
Net Change In Cash	-44.10M	-14.80M	-21.30M
YoY Change	197.97%	-30.52%	-269.05%
FREE CASH FLOW
Cash From Operating Activities	$51.50M	$67.40M	$18.70M
Capital Expenditures	-$400.0K	-$3.700M	-$2.900M
Free Cash Flow	$51.90M	$71.10M	$21.60M
YoY Change	-27.0%	229.17%	-44.9%

Facts In Submission

Frame	Concept Type	Concept / XBRL Key	Value	Unit
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CY2019	dei	Entity Well Known Seasoned Issuer EntityWellKnownSeasonedIssuer	No
CY2019Q4	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	40000000	shares
CY2019	dei	Entity Voluntary Filers EntityVoluntaryFilers	No
CY2019	dei	Entity Current Reporting Status EntityCurrentReportingStatus	Yes
CY2018Q4	us-gaap	Common Stock Shares Issued CommonStockSharesIssued	28205674	shares
CY2019	dei	Entity Interactive Data Current EntityInteractiveDataCurrent	Yes
CY2019	us-gaap	Interest Income Securities Taxable InterestIncomeSecuritiesTaxable	20946000	USD
CY2018	us-gaap	Interest Income Securities Taxable InterestIncomeSecuritiesTaxable	19356000	USD
CY2019Q4	us-gaap	Common Stock Shares Issued CommonStockSharesIssued	28205674	shares
CY2017	us-gaap	Interest Income Securities Taxable InterestIncomeSecuritiesTaxable	13853000	USD
CY2017	srce	Furniture And Equipment Expense FurnitureAndEquipmentExpense	20769000	USD
CY2019	us-gaap	Interest Income Securities Tax Exempt InterestIncomeSecuritiesTaxExempt	1351000	USD
CY2018	us-gaap	Interest Income Securities Tax Exempt InterestIncomeSecuritiesTaxExempt	1857000	USD
CY2019	srce	Professional And Directors Fees ProfessionalAndDirectorsFees	6952000	USD
CY2018	srce	Professional And Directors Fees ProfessionalAndDirectorsFees	7680000	USD
CY2017	srce	Professional And Directors Fees ProfessionalAndDirectorsFees	6810000	USD
CY2019	srce	Supplies And Communication Expense SuppliesAndCommunicationExpense	6454000	USD
CY2018Q4	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	0	USD
CY2017	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.350
CY2018	us-gaap	Treasury Stock Shares Acquired TreasuryStockSharesAcquired	201013	shares
CY2018	srce	Supplies And Communication Expense SuppliesAndCommunicationExpense	6320000	USD
CY2019	us-gaap	Treasury Stock Shares Acquired TreasuryStockSharesAcquired	325787	shares
CY2018Q4	us-gaap	Unrecognized Tax Benefits That Would Impact Effective Tax Rate UnrecognizedTaxBenefitsThatWouldImpactEffectiveTaxRate	0	USD
CY2019	dei	Document Type DocumentType	10-K
CY2019	dei	Document Annual Report DocumentAnnualReport	true
CY2019	dei	Document Period End Date DocumentPeriodEndDate	2019-12-31
CY2019	dei	Document Transition Report DocumentTransitionReport	false
CY2019	dei	Entity File Number EntityFileNumber	0-6233
CY2019	dei	Entity Registrant Name EntityRegistrantName	1st Source Corporation
CY2019	dei	Entity Incorporation State Country Code EntityIncorporationStateCountryCode	IN
CY2019	dei	City Area Code CityAreaCode	574
CY2019	dei	Entity Tax Identification Number EntityTaxIdentificationNumber	35-1068133
CY2019	dei	Entity Address Address Line1 EntityAddressAddressLine1	100 North Michigan Street
CY2019	dei	Entity Address City Or Town EntityAddressCityOrTown	South Bend,
CY2019	dei	Entity Address State Or Province EntityAddressStateOrProvince	IN
CY2019	dei	Entity Address Postal Zip Code EntityAddressPostalZipCode	46601
CY2019	dei	Entity Filer Category EntityFilerCategory	Large Accelerated Filer
CY2017	srce	Supplies And Communication Expense SuppliesAndCommunicationExpense	5355000	USD
CY2019	us-gaap	Insurance Commissions And Fees InsuranceCommissionsAndFees	6761000	USD
CY2019	srce	Federal Deposit Insurance Corporation Premium And Other Insurance Expense FederalDepositInsuranceCorporationPremiumAndOtherInsuranceExpense	1795000	USD
CY2019	dei	Entity Small Business EntitySmallBusiness	false
CY2018	srce	Federal Deposit Insurance Corporation Premium And Other Insurance Expense FederalDepositInsuranceCorporationPremiumAndOtherInsuranceExpense	2923000	USD
CY2018	us-gaap	Insurance Commissions And Fees InsuranceCommissionsAndFees	6502000	USD
CY2017	srce	Federal Deposit Insurance Corporation Premium And Other Insurance Expense FederalDepositInsuranceCorporationPremiumAndOtherInsuranceExpense	2537000	USD
CY2017	us-gaap	Insurance Commissions And Fees InsuranceCommissionsAndFees	5889000	USD
CY2019	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	3.57
CY2019	srce	Business Development And Marketing Expense BusinessDevelopmentAndMarketingExpense	6303000	USD
CY2018	srce	Business Development And Marketing Expense BusinessDevelopmentAndMarketingExpense	6112000	USD
CY2019	dei	Entity Emerging Growth Company EntityEmergingGrowthCompany	false
CY2019	dei	Entity Shell Company EntityShellCompany	false
CY2019Q2	dei	Entity Public Float EntityPublicFloat	921284157	USD
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CY2019Q4	us-gaap	Federal Funds Purchased And Securities Sold Under Agreements To Repurchase FederalFundsPurchasedAndSecuritiesSoldUnderAgreementsToRepurchase	120459000	USD
CY2019	us-gaap	Operating Lease Lease Income Lease Payments OperatingLeaseLeaseIncomeLeasePayments	30741000	USD
CY2018Q4	us-gaap	Federal Funds Purchased And Securities Sold Under Agreements To Repurchase FederalFundsPurchasedAndSecuritiesSoldUnderAgreementsToRepurchase	113627000	USD
CY2019Q4	us-gaap	Other Short Term Borrowings OtherShortTermBorrowings	25434000	USD
CY2018	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	3.16
CY2018	us-gaap	Operating Lease Lease Income Lease Payments OperatingLeaseLeaseIncomeLeasePayments	31793000	USD
CY2017	us-gaap	Interest Income Securities Tax Exempt InterestIncomeSecuritiesTaxExempt	2413000	USD
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CY2017	us-gaap	Operating Lease Lease Income Lease Payments OperatingLeaseLeaseIncomeLeasePayments	30381000	USD
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CY2019Q4	us-gaap	Short Term Borrowings ShortTermBorrowings	145893000	USD
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CY2018Q4	us-gaap	Short Term Borrowings ShortTermBorrowings	199344000	USD
CY2019	us-gaap	Noninterest Income Other Operating Income NoninterestIncomeOtherOperatingIncome	13019000	USD
CY2017	srce	Business Development And Marketing Expense BusinessDevelopmentAndMarketingExpense	7477000	USD
CY2019	srce	Loan And Lease Collection And Repossession Expense LoanAndLeaseCollectionAndRepossessionExpense	3402000	USD
CY2019Q4	srce	Long Term Debt And Mandatorily Redeemable Securities LongTermDebtAndMandatorilyRedeemableSecurities	71639000	USD
CY2018Q4	srce	Long Term Debt And Mandatorily Redeemable Securities LongTermDebtAndMandatorilyRedeemableSecurities	71123000	USD
CY2019Q4	us-gaap	Junior Subordinated Debenture Owed To Unconsolidated Subsidiary Trust JuniorSubordinatedDebentureOwedToUnconsolidatedSubsidiaryTrust	58764000	USD
CY2018	us-gaap	Noninterest Income Other Operating Income NoninterestIncomeOtherOperatingIncome	10362000	USD
CY2018Q4	us-gaap	Junior Subordinated Debenture Owed To Unconsolidated Subsidiary Trust JuniorSubordinatedDebentureOwedToUnconsolidatedSubsidiaryTrust	58764000	USD
CY2017	us-gaap	Noninterest Income Other Operating Income NoninterestIncomeOtherOperatingIncome	9922000	USD
CY2019Q4	us-gaap	Other Liabilities OtherLiabilities	140518000	USD
CY2019	us-gaap	Noninterest Income NoninterestIncome	101130000	USD
CY2018	us-gaap	Noninterest Income NoninterestIncome	97050000	USD
CY2017	us-gaap	Noninterest Income NoninterestIncome	98706000	USD
CY2019	us-gaap	Other Interest And Dividend Income OtherInterestAndDividendIncome	2232000	USD
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CY2018	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	-6626000	USD
CY2018	us-gaap	Labor And Related Expense LaborAndRelatedExpense	93857000	USD
CY2017	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	-4676000	USD
CY2017	us-gaap	Labor And Related Expense LaborAndRelatedExpense	86912000	USD
CY2019	us-gaap	Occupancy Net OccupancyNet	10528000	USD
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CY2017	us-gaap	Occupancy Net OccupancyNet	10624000	USD
CY2019Q4	us-gaap	Liabilities Liabilities	5774140000	USD
CY2018Q4	us-gaap	Liabilities Liabilities	5530155000	USD
CY2019Q4	us-gaap	Preferred Stock Value PreferredStockValue	0	USD
CY2018Q4	us-gaap	Preferred Stock Value PreferredStockValue	0	USD
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CY2018Q4	us-gaap	Common Stock Value CommonStockValue	436538000	USD
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CY2018Q4	us-gaap	Treasury Stock Value TreasuryStockValue	62760000	USD
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CY2019	dei	Amendment Flag AmendmentFlag	false
CY2019	dei	Current Fiscal Year End Date CurrentFiscalYearEndDate	--12-31
CY2019	dei	Document Fiscal Period Focus DocumentFiscalPeriodFocus	FY
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CY2019	dei	Entity Central Index Key EntityCentralIndexKey	0000034782
CY2018	srce	Fair Value Measurementwith Unobservable Inputs Reconciliation Numberof Transfer Between Level1and Level2 FairValueMeasurementwithUnobservableInputsReconciliationNumberofTransferBetweenLevel1andLevel2	0	item
CY2019	srce	Fair Value Measurementwith Unobservable Inputs Reconciliation Numberof Transfer Between Level1and Level2 FairValueMeasurementwithUnobservableInputsReconciliationNumberofTransferBetweenLevel1andLevel2	0	item
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CY2019	dei	Local Phone Number LocalPhoneNumber	235-2000
CY2019	dei	Security12b Title Security12bTitle	Common Stock — without par value
CY2019	dei	Trading Symbol TradingSymbol	SRCE
CY2019	dei	Security Exchange Name SecurityExchangeName	NASDAQ
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CY2019	us-gaap	Interest Expense InterestExpense	59011000	USD
CY2018	us-gaap	Interest Expense InterestExpense	43410000	USD
CY2017	us-gaap	Interest Expense InterestExpense	26754000	USD
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CY2019Q4	srce	Federal Funds Sold And Interest Bearing Deposits In Banks FederalFundsSoldAndInterestBearingDepositsInBanks	16150000	USD
CY2018Q4	srce	Federal Funds Sold And Interest Bearing Deposits In Banks FederalFundsSoldAndInterestBearingDepositsInBanks	4172000	USD
CY2019Q4	us-gaap	Available For Sale Securities Debt Securities AvailableForSaleSecuritiesDebtSecurities	1040583000	USD
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CY2019Q4	us-gaap	Financing Receivable Allowance For Credit Losses FinancingReceivableAllowanceForCreditLosses	111254000	USD
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CY2019Q4	us-gaap	Loans And Leases Receivable Net Reported Amount LoansAndLeasesReceivableNetReportedAmount	4974273000	USD
CY2018Q4	us-gaap	Loans And Leases Receivable Net Reported Amount LoansAndLeasesReceivableNetReportedAmount	4734995000	USD
CY2019Q4	srce	Net Investmentin Operating Lease Financing NetInvestmentinOperatingLeaseFinancing	111684000	USD
CY2018Q4	srce	Net Investmentin Operating Lease Financing NetInvestmentinOperatingLeaseFinancing	134440000	USD
CY2019Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	52219000	USD
CY2018Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	52139000	USD
CY2019Q4	us-gaap	Intangible Assets Net Including Goodwill IntangibleAssetsNetIncludingGoodwill	83971000	USD
CY2018Q4	us-gaap	Intangible Assets Net Including Goodwill IntangibleAssetsNetIncludingGoodwill	83998000	USD
CY2019Q4	us-gaap	Other Assets OtherAssets	227990000	USD
CY2018Q4	us-gaap	Other Assets OtherAssets	159271000	USD
CY2019Q4	us-gaap	Assets Assets	6622776000	USD
CY2018Q4	us-gaap	Assets Assets	6293745000	USD
CY2019Q4	us-gaap	Noninterest Bearing Deposit Liabilities NoninterestBearingDepositLiabilities	1216834000	USD
CY2018Q4	us-gaap	Noninterest Bearing Deposit Liabilities NoninterestBearingDepositLiabilities	1217120000	USD
CY2019Q4	us-gaap	Demand Deposit Accounts DemandDepositAccounts	1677200000	USD
CY2018Q4	us-gaap	Demand Deposit Accounts DemandDepositAccounts	1614959000	USD
CY2019Q4	us-gaap	Deposits Savings Deposits DepositsSavingsDeposits	814794000	USD
CY2018Q4	us-gaap	Deposits Savings Deposits DepositsSavingsDeposits	822477000	USD
CY2019Q4	us-gaap	Time Deposits TimeDeposits	1648498000	USD
CY2018Q4	us-gaap	Time Deposits TimeDeposits	1467766000	USD
CY2019Q4	us-gaap	Interest Bearing Deposit Liabilities InterestBearingDepositLiabilities	4140492000	USD
CY2018Q4	us-gaap	Interest Bearing Deposit Liabilities InterestBearingDepositLiabilities	3905202000	USD
CY2019Q4	us-gaap	Deposits Deposits	5357326000	USD
CY2018Q4	us-gaap	Deposits Deposits	5122322000	USD
CY2019	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	223866000	USD
CY2018	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	213906000	USD
CY2017	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	185631000	USD
CY2017	us-gaap	Interest And Fee Income Loans And Leases InterestAndFeeIncomeLoansAndLeases	194726000	USD
CY2019	us-gaap	Provision For Loan And Lease Losses ProvisionForLoanAndLeaseLosses	15833000	USD
CY2018	us-gaap	Provision For Loan And Lease Losses ProvisionForLoanAndLeaseLosses	19462000	USD
CY2017	us-gaap	Provision For Loan And Lease Losses ProvisionForLoanAndLeaseLosses	8980000	USD
CY2019	us-gaap	Interest Income Expense After Provision For Loan Loss InterestIncomeExpenseAfterProvisionForLoanLoss	208033000	USD
CY2018	us-gaap	Interest Income Expense After Provision For Loan Loss InterestIncomeExpenseAfterProvisionForLoanLoss	194444000	USD
CY2017	us-gaap	Interest Income Expense After Provision For Loan Loss InterestIncomeExpenseAfterProvisionForLoanLoss	176651000	USD
CY2019	srce	Mortgage Banking Income MortgageBankingIncome	4698000	USD
CY2017	srce	Loan And Lease Collection And Repossession Expense LoanAndLeaseCollectionAndRepossessionExpense	2724000	USD
CY2018	srce	Mortgage Banking Income MortgageBankingIncome	3844000	USD
CY2017	srce	Mortgage Banking Income MortgageBankingIncome	4796000	USD
CY2019	srce	Furniture And Equipment Expense FurnitureAndEquipmentExpense	24815000	USD
CY2018	srce	Furniture And Equipment Expense FurnitureAndEquipmentExpense	23433000	USD
CY2017	us-gaap	Comprehensive Income Net Of Tax Including Portion Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest	63375000	USD
CY2018	srce	Loan And Lease Collection And Repossession Expense LoanAndLeaseCollectionAndRepossessionExpense	3375000	USD
CY2017	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	2.60
CY2019	us-gaap	Comprehensive Income Net Of Tax Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest	55000	USD
CY2018	us-gaap	Comprehensive Income Net Of Tax Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest	0	USD
CY2019	us-gaap	Other Noninterest Expense OtherNoninterestExpense	6534000	USD
CY2019	us-gaap	Profit Loss ProfitLoss	92015000	USD
CY2018	us-gaap	Profit Loss ProfitLoss	82414000	USD
CY2018	us-gaap	Other Noninterest Expense OtherNoninterestExpense	6478000	USD
CY2017	us-gaap	Other Noninterest Expense OtherNoninterestExpense	5574000	USD
CY2019	us-gaap	Noninterest Expense NoninterestExpense	189009000	USD
CY2017	us-gaap	Profit Loss ProfitLoss	68051000	USD
CY2018	us-gaap	Noninterest Expense NoninterestExpense	186467000	USD
CY2019	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Before Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodBeforeTax	20875000	USD
CY2018	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Before Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodBeforeTax	-9073000	USD
CY2017	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Before Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodBeforeTax	-3147000	USD
CY2017	us-gaap	Other Comprehensive Income Loss Tax Portion Attributable To Parent1 OtherComprehensiveIncomeLossTaxPortionAttributableToParent1	-2811000	USD
CY2017	us-gaap	Noninterest Expense NoninterestExpense	173997000	USD
CY2019	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Before Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesBeforeTax	0	USD
CY2018	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	75788000	USD
CY2019	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	15848000	USD
CY2017	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	63375000	USD
CY2017	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	68051000	USD
CY2019	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	120154000	USD
CY2018	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	105027000	USD
CY2017	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	101360000	USD
CY2019	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	28139000	USD
CY2018	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	22613000	USD
CY2017	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	33309000	USD
CY2019	us-gaap	Profit Loss ProfitLoss	92015000	USD
CY2018	us-gaap	Profit Loss ProfitLoss	82414000	USD
CY2017	us-gaap	Profit Loss ProfitLoss	68051000	USD
CY2019	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	55000	USD
CY2018	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	0	USD
CY2017	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	0	USD
CY2019	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	91960000	USD
CY2018	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	82414000	USD
CY2018	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Before Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesBeforeTax	-345000	USD
CY2017	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Before Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesBeforeTax	4340000	USD
CY2019	us-gaap	Other Comprehensive Income Loss Tax Portion Attributable To Parent1 OtherComprehensiveIncomeLossTaxPortionAttributableToParent1	5027000	USD
CY2018	us-gaap	Other Comprehensive Income Loss Tax Portion Attributable To Parent1 OtherComprehensiveIncomeLossTaxPortionAttributableToParent1	-2102000	USD
CY2016Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	672650000	USD
CY2016Q4	us-gaap	Cumulative Effect Of New Accounting Principle In Period Of Adoption CumulativeEffectOfNewAccountingPrincipleInPeriodOfAdoption	-65000	USD
CY2017	srce	Operating Lease Rightof Use Asset Amortization OperatingLeaseRightofUseAssetAmortization	0	USD
CY2019	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	-5730000	USD
CY2016Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest Adjusted Balance1 StockholdersEquityIncludingPortionAttributableToNoncontrollingInterestAdjustedBalance1	672585000	USD
CY2018	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	-550000	USD
CY2017	us-gaap	Profit Loss ProfitLoss	68051000	USD
CY2017	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	-4676000	USD
CY2017	srce	Stock Issued During Period Value Stock Based Compensation Awards StockIssuedDuringPeriodValueStockBasedCompensationAwards	2377000	USD
CY2017	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	2767000	USD
CY2017	us-gaap	Treasury Stock Value Acquired Cost Method TreasuryStockValueAcquiredCostMethod	41000	USD
CY2017	us-gaap	Dividends Common Stock Cash DividendsCommonStockCash	19759000	USD
CY2017	us-gaap	Comprehensive Income Net Of Tax Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest	0	USD
CY2019	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	107808000	USD
CY2017	us-gaap	Depreciation Nonproduction DepreciationNonproduction	5658000	USD
CY2019	us-gaap	Share Based Compensation ShareBasedCompensation	2765000	USD
CY2019	us-gaap	Debt Securities Available For Sale Realized Gain Loss DebtSecuritiesAvailableForSaleRealizedGainLoss	0	USD
CY2017Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	718537000	USD
CY2017Q4	us-gaap	Cumulative Effect Of New Accounting Principle In Period Of Adoption CumulativeEffectOfNewAccountingPrincipleInPeriodOfAdoption	0	USD
CY2017Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest Adjusted Balance1 StockholdersEquityIncludingPortionAttributableToNoncontrollingInterestAdjustedBalance1	718537000	USD
CY2018	us-gaap	Profit Loss ProfitLoss	82414000	USD
CY2018	us-gaap	Share Based Compensation ShareBasedCompensation	3553000	USD
CY2017	us-gaap	Share Based Compensation ShareBasedCompensation	2963000	USD
CY2019	us-gaap	Depreciation Nonproduction DepreciationNonproduction	5786000	USD
CY2018	us-gaap	Depreciation Nonproduction DepreciationNonproduction	5620000	USD
CY2018	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	-6626000	USD
CY2018	srce	Stock Issued During Period Value Stock Based Compensation Awards StockIssuedDuringPeriodValueStockBasedCompensationAwards	1980000	USD
CY2018	us-gaap	Treasury Stock Value Acquired Cost Method TreasuryStockValueAcquiredCostMethod	9271000	USD
CY2018	us-gaap	Dividends Common Stock Cash DividendsCommonStockCash	24952000	USD
CY2018	us-gaap	Noncontrolling Interest Increase From Subsidiary Equity Issuance NoncontrollingInterestIncreaseFromSubsidiaryEquityIssuance	1508000	USD
CY2018Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	763590000	USD
CY2018Q4	us-gaap	Cumulative Effect Of New Accounting Principle In Period Of Adoption CumulativeEffectOfNewAccountingPrincipleInPeriodOfAdoption	-301000	USD
CY2018Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest Adjusted Balance1 StockholdersEquityIncludingPortionAttributableToNoncontrollingInterestAdjustedBalance1	763289000	USD
CY2019	us-gaap	Profit Loss ProfitLoss	92015000	USD
CY2019	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	15848000	USD
CY2019	srce	Stock Issued During Period Value Stock Based Compensation Awards StockIssuedDuringPeriodValueStockBasedCompensationAwards	2005000	USD
CY2019	us-gaap	Treasury Stock Value Acquired Cost Method TreasuryStockValueAcquiredCostMethod	15085000	USD
CY2019	us-gaap	Dividends Common Stock Cash DividendsCommonStockCash	28232000	USD
CY2019	us-gaap	Noncontrolling Interest Increase From Subsidiary Equity Issuance NoncontrollingInterestIncreaseFromSubsidiaryEquityIssuance	18934000	USD
CY2019	us-gaap	Minority Interest Decrease From Distributions To Noncontrolling Interest Holders MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders	138000	USD
CY2019Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	848636000	USD
CY2019	us-gaap	Profit Loss ProfitLoss	92015000	USD
CY2018	us-gaap	Profit Loss ProfitLoss	82414000	USD
CY2017	us-gaap	Profit Loss ProfitLoss	68051000	USD
CY2019	us-gaap	Provision For Loan And Lease Losses ProvisionForLoanAndLeaseLosses	15833000	USD
CY2018	us-gaap	Provision For Loan And Lease Losses ProvisionForLoanAndLeaseLosses	19462000	USD
CY2017	us-gaap	Provision For Loan And Lease Losses ProvisionForLoanAndLeaseLosses	8980000	USD
CY2019	us-gaap	Accretion Amortization Of Discounts And Premiums Investments AccretionAmortizationOfDiscountsAndPremiumsInvestments	-4014000	USD
CY2018	us-gaap	Accretion Amortization Of Discounts And Premiums Investments AccretionAmortizationOfDiscountsAndPremiumsInvestments	-3477000	USD
CY2017	us-gaap	Accretion Amortization Of Discounts And Premiums Investments AccretionAmortizationOfDiscountsAndPremiumsInvestments	-5449000	USD
CY2019	us-gaap	Amortization Of Mortgage Servicing Rights Ms Rs AmortizationOfMortgageServicingRightsMSRs	1312000	USD
CY2018	us-gaap	Amortization Of Mortgage Servicing Rights Ms Rs AmortizationOfMortgageServicingRightsMSRs	956000	USD
CY2017	us-gaap	Amortization Of Mortgage Servicing Rights Ms Rs AmortizationOfMortgageServicingRightsMSRs	1092000	USD
CY2019	srce	Operating Lease Rightof Use Asset Amortization OperatingLeaseRightofUseAssetAmortization	3046000	USD
CY2018	srce	Operating Lease Rightof Use Asset Amortization OperatingLeaseRightofUseAssetAmortization	0	USD
CY2018	us-gaap	Debt Securities Available For Sale Realized Gain Loss DebtSecuritiesAvailableForSaleRealizedGainLoss	-345000	USD
CY2018	us-gaap	Payments For Origination Of Mortgage Loans Held For Sale PaymentsForOriginationOfMortgageLoansHeldForSale	78450000	USD
CY2019	us-gaap	Proceeds From Sale Of Buildings ProceedsFromSaleOfBuildings	3418000	USD
CY2017	srce	Debt And Equity Securities Available For Sale Realized Gain Loss DebtAndEquitySecuritiesAvailableForSaleRealizedGainLoss	4340000	USD
CY2019	us-gaap	Payments For Origination Of Mortgage Loans Held For Sale PaymentsForOriginationOfMortgageLoansHeldForSale	145097000	USD
CY2018	us-gaap	Proceeds From Sale Of Buildings ProceedsFromSaleOfBuildings	216000	USD
CY2017	us-gaap	Proceeds From Maturities Prepayments And Calls Of Available For Sale Securities ProceedsFromMaturitiesPrepaymentsAndCallsOfAvailableForSaleSecurities	177466000	USD
CY2019	us-gaap	Payments To Acquire Available For Sale Securities Debt PaymentsToAcquireAvailableForSaleSecuritiesDebt	351189000	USD
CY2018	us-gaap	Payments To Acquire Available For Sale Securities Debt PaymentsToAcquireAvailableForSaleSecuritiesDebt	255205000	USD
CY2017	srce	Payments To Acquire Available For Sale Debt And Equity Securities PaymentsToAcquireAvailableForSaleDebtAndEquitySecurities	469385000	USD
CY2018	us-gaap	Increase Decrease In Other Operating Liabilities IncreaseDecreaseInOtherOperatingLiabilities	21884000	USD
CY2017	us-gaap	Payments For Origination Of Mortgage Loans Held For Sale PaymentsForOriginationOfMortgageLoansHeldForSale	101104000	USD
CY2019	us-gaap	Proceeds From Sale Of Mortgage Loans Held For Sale ProceedsFromSaleOfMortgageLoansHeldForSale	139050000	USD
CY2018	us-gaap	Proceeds From Sale Of Mortgage Loans Held For Sale ProceedsFromSaleOfMortgageLoansHeldForSale	82127000	USD
CY2017	us-gaap	Proceeds From Sale Of Mortgage Loans Held For Sale ProceedsFromSaleOfMortgageLoansHeldForSale	106811000	USD
CY2019	us-gaap	Gain Loss On Sale Of Mortgage Loans GainLossOnSaleOfMortgageLoans	2940000	USD
CY2018	us-gaap	Gain Loss On Sale Of Mortgage Loans GainLossOnSaleOfMortgageLoans	1844000	USD
CY2017	us-gaap	Gain Loss On Sale Of Mortgage Loans GainLossOnSaleOfMortgageLoans	2981000	USD
CY2019	srce	Net Gain On Sale Of Other Real Estate And Repossessions NetGainOnSaleOfOtherRealEstateAndRepossessions	487000	USD
CY2018	srce	Net Gain On Sale Of Other Real Estate And Repossessions NetGainOnSaleOfOtherRealEstateAndRepossessions	561000	USD
CY2017	srce	Net Gain On Sale Of Other Real Estate And Repossessions NetGainOnSaleOfOtherRealEstateAndRepossessions	251000	USD
CY2019	us-gaap	Gain Loss On Disposition Of Assets GainLossOnDispositionOfAssets	1251000	USD
CY2018	us-gaap	Gain Loss On Disposition Of Assets GainLossOnDispositionOfAssets	128000	USD
CY2017	us-gaap	Gain Loss On Disposition Of Assets GainLossOnDispositionOfAssets	300000	USD
CY2019	us-gaap	Increase Decrease In Accrued Interest Receivable Net IncreaseDecreaseInAccruedInterestReceivableNet	245000	USD
CY2018	us-gaap	Increase Decrease In Accrued Interest Receivable Net IncreaseDecreaseInAccruedInterestReceivableNet	1747000	USD
CY2017	us-gaap	Increase Decrease In Accrued Interest Receivable Net IncreaseDecreaseInAccruedInterestReceivableNet	2119000	USD
CY2019	us-gaap	Increase Decrease In Interest Payable Net IncreaseDecreaseInInterestPayableNet	4968000	USD
CY2018	us-gaap	Increase Decrease In Interest Payable Net IncreaseDecreaseInInterestPayableNet	2997000	USD
CY2017	us-gaap	Increase Decrease In Interest Payable Net IncreaseDecreaseInInterestPayableNet	1222000	USD
CY2019	us-gaap	Increase Decrease In Other Operating Assets IncreaseDecreaseInOtherOperatingAssets	-11213000	USD
CY2018	us-gaap	Increase Decrease In Other Operating Assets IncreaseDecreaseInOtherOperatingAssets	7048000	USD
CY2017	us-gaap	Increase Decrease In Other Operating Assets IncreaseDecreaseInOtherOperatingAssets	-551000	USD
CY2019	us-gaap	Increase Decrease In Other Operating Liabilities IncreaseDecreaseInOtherOperatingLiabilities	13492000	USD
CY2017	us-gaap	Increase Decrease In Other Operating Liabilities IncreaseDecreaseInOtherOperatingLiabilities	19364000	USD
CY2019	us-gaap	Increase Decrease In Other Operating Capital Net IncreaseDecreaseInOtherOperatingCapitalNet	-1734000	USD
CY2018	us-gaap	Increase Decrease In Other Operating Capital Net IncreaseDecreaseInOtherOperatingCapitalNet	-940000	USD
CY2017	us-gaap	Increase Decrease In Other Operating Capital Net IncreaseDecreaseInOtherOperatingCapitalNet	-2670000	USD
CY2019	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	164606000	USD
CY2018	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	159695000	USD
CY2017	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	139698000	USD
CY2019	us-gaap	Proceeds From Sale Of Available For Sale Securities Debt ProceedsFromSaleOfAvailableForSaleSecuritiesDebt	0	USD
CY2018	us-gaap	Proceeds From Sale Of Available For Sale Securities Debt ProceedsFromSaleOfAvailableForSaleSecuritiesDebt	11392000	USD
CY2017	srce	Proceeds From Saleof Available For Sale Debt And Equity Securities ProceedsFromSaleofAvailableForSaleDebtAndEquitySecurities	228715000	USD
CY2019	us-gaap	Proceeds From Maturities Prepayments And Calls Of Available For Sale Securities ProceedsFromMaturitiesPrepaymentsAndCallsOfAvailableForSaleSecurities	317295000	USD
CY2018	us-gaap	Proceeds From Maturities Prepayments And Calls Of Available For Sale Securities ProceedsFromMaturitiesPrepaymentsAndCallsOfAvailableForSaleSecurities	145167000	USD
CY2017	us-gaap	Proceeds From Sale Of Buildings ProceedsFromSaleOfBuildings	2180000	USD
CY2019	us-gaap	Payments For Proceeds From Limited Partnership PaymentsForProceedsFromLimitedPartnership	33840000	USD
CY2018	us-gaap	Payments For Proceeds From Limited Partnership PaymentsForProceedsFromLimitedPartnership	13669000	USD
CY2017	us-gaap	Payments For Proceeds From Limited Partnership PaymentsForProceedsFromLimitedPartnership	24489000	USD
CY2019	srce	Proceeds For Payments To Acquire Other Investments ProceedsForPaymentsToAcquireOtherInvestments	10000	USD
CY2018	srce	Proceeds For Payments To Acquire Other Investments ProceedsForPaymentsToAcquireOtherInvestments	2451000	USD
CY2017	srce	Proceeds For Payments To Acquire Other Investments ProceedsForPaymentsToAcquireOtherInvestments	3495000	USD
CY2019	srce	Proceeds From Loans Sold Or Participated To Others ProceedsFromLoansSoldOrParticipatedToOthers	53369000	USD
CY2018	srce	Proceeds From Loans Sold Or Participated To Others ProceedsFromLoansSoldOrParticipatedToOthers	22835000	USD
CY2017	srce	Proceeds From Loans Sold Or Participated To Others ProceedsFromLoansSoldOrParticipatedToOthers	32004000	USD
CY2019	us-gaap	Proceeds From Lease Payments ProceedsFromLeasePayments	69188000	USD
CY2018	us-gaap	Proceeds From Lease Payments ProceedsFromLeasePayments	50457000	USD
CY2017	us-gaap	Proceeds From Lease Payments ProceedsFromLeasePayments	75268000	USD
CY2019	us-gaap	Payments For Proceeds From Loans And Leases PaymentsForProceedsFromLoansAndLeases	392475000	USD
CY2018	us-gaap	Payments For Proceeds From Loans And Leases PaymentsForProceedsFromLoansAndLeases	405961000	USD
CY2017	us-gaap	Payments For Proceeds From Loans And Leases PaymentsForProceedsFromLoansAndLeases	457654000	USD
CY2019	srce	Payments For Proceeds From Equipment Owned Under Operating Leases PaymentsForProceedsFromEquipmentOwnedUnderOperatingLeases	2495000	USD
CY2018	srce	Payments For Proceeds From Equipment Owned Under Operating Leases PaymentsForProceedsFromEquipmentOwnedUnderOperatingLeases	21107000	USD
CY2017	srce	Payments For Proceeds From Equipment Owned Under Operating Leases PaymentsForProceedsFromEquipmentOwnedUnderOperatingLeases	46003000	USD
CY2019	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	8033000	USD
CY2018	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	3058000	USD
CY2017	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	5444000	USD
CY2019	us-gaap	Proceeds From Sale Of Foreclosed Assets ProceedsFromSaleOfForeclosedAssets	10855000	USD
CY2018	us-gaap	Proceeds From Sale Of Foreclosed Assets ProceedsFromSaleOfForeclosedAssets	13433000	USD
CY2017	us-gaap	Proceeds From Sale Of Foreclosed Assets ProceedsFromSaleOfForeclosedAssets	6194000	USD
CY2019	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-333917000	USD
CY2018	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-457951000	USD
CY2017	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-484643000	USD
CY2019	srce	Increase Decreasein Savingand Demand Deposits IncreaseDecreaseinSavingandDemandDeposits	54272000	USD
CY2018	srce	Increase Decreasein Savingand Demand Deposits IncreaseDecreaseinSavingandDemandDeposits	171799000	USD
CY2017	srce	Increase Decreasein Savingand Demand Deposits IncreaseDecreaseinSavingandDemandDeposits	205649000	USD
CY2019	us-gaap	Increase Decrease In Time Deposits IncreaseDecreaseInTimeDeposits	180732000	USD
CY2018	us-gaap	Increase Decrease In Time Deposits IncreaseDecreaseInTimeDeposits	197793000	USD
CY2017	us-gaap	Increase Decrease In Time Deposits IncreaseDecreaseInTimeDeposits	213321000	USD
CY2019	us-gaap	Proceeds From Repayments Of Short Term Debt ProceedsFromRepaymentsOfShortTermDebt	-53451000	USD
CY2018	us-gaap	Proceeds From Repayments Of Short Term Debt ProceedsFromRepaymentsOfShortTermDebt	-15251000	USD
CY2017	us-gaap	Proceeds From Repayments Of Short Term Debt ProceedsFromRepaymentsOfShortTermDebt	-77348000	USD
CY2019	us-gaap	Proceeds From Issuance Of Long Term Debt ProceedsFromIssuanceOfLongTermDebt	0	USD
CY2018	us-gaap	Proceeds From Issuance Of Long Term Debt ProceedsFromIssuanceOfLongTermDebt	0	USD
CY2016Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	108304000	USD
CY2017	us-gaap	Proceeds From Issuance Of Long Term Debt ProceedsFromIssuanceOfLongTermDebt	19999000	USD
CY2019	us-gaap	Repayments Of Long Term Debt RepaymentsOfLongTermDebt	2695000	USD
CY2018	us-gaap	Repayments Of Long Term Debt RepaymentsOfLongTermDebt	1735000	USD
CY2017	us-gaap	Repayments Of Long Term Debt RepaymentsOfLongTermDebt	26628000	USD
CY2019	us-gaap	Proceeds From Sale Of Treasury Stock ProceedsFromSaleOfTreasuryStock	49000	USD
CY2018	us-gaap	Proceeds From Sale Of Treasury Stock ProceedsFromSaleOfTreasuryStock	145000	USD
CY2017	us-gaap	Proceeds From Sale Of Treasury Stock ProceedsFromSaleOfTreasuryStock	153000	USD
CY2019	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	15085000	USD
CY2018	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	9271000	USD
CY2017	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	41000	USD
CY2019	us-gaap	Proceeds From Minority Shareholders ProceedsFromMinorityShareholders	18796000	USD
CY2018	us-gaap	Proceeds From Minority Shareholders ProceedsFromMinorityShareholders	1508000	USD
CY2017	us-gaap	Proceeds From Minority Shareholders ProceedsFromMinorityShareholders	0	USD
CY2019	us-gaap	Payments Of Dividends Common Stock PaymentsOfDividendsCommonStock	29021000	USD
CY2018	us-gaap	Payments Of Dividends Common Stock PaymentsOfDividendsCommonStock	25686000	USD
CY2017	us-gaap	Payments Of Dividends Common Stock PaymentsOfDividendsCommonStock	20431000	USD
CY2019	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	153597000	USD
CY2018	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	319302000	USD
CY2017	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	314674000	USD
CY2019	us-gaap	Cash And Cash Equivalents Period Increase Decrease Excluding Exchange Rate Effect CashAndCashEquivalentsPeriodIncreaseDecreaseExcludingExchangeRateEffect	-15714000	USD
CY2018	us-gaap	Cash And Cash Equivalents Period Increase Decrease Excluding Exchange Rate Effect CashAndCashEquivalentsPeriodIncreaseDecreaseExcludingExchangeRateEffect	21046000	USD
CY2017	us-gaap	Cash And Cash Equivalents Period Increase Decrease Excluding Exchange Rate Effect CashAndCashEquivalentsPeriodIncreaseDecreaseExcludingExchangeRateEffect	-30271000	USD
CY2018Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	99079000	USD
CY2017Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	78033000	USD
CY2019Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	83365000	USD
CY2018Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	99079000	USD
CY2017Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	78033000	USD
CY2019	srce	Transfer Other Real Estate And Repossessed Assets TransferOtherRealEstateAndRepossessedAssets	14807000	USD
CY2018	srce	Transfer Other Real Estate And Repossessed Assets TransferOtherRealEstateAndRepossessedAssets	11007000	USD
CY2017	srce	Transfer Other Real Estate And Repossessed Assets TransferOtherRealEstateAndRepossessedAssets	8135000	USD
CY2019	us-gaap	Stock Issued1 StockIssued1	300000	USD
CY2018	us-gaap	Stock Issued1 StockIssued1	583000	USD
CY2017	us-gaap	Stock Issued1 StockIssued1	1426000	USD
CY2019	us-gaap	Right Of Use Asset Obtained In Exchange For Operating Lease Liability RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability	17064000	USD
CY2018	us-gaap	Right Of Use Asset Obtained In Exchange For Operating Lease Liability RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability	0	USD
CY2017	us-gaap	Right Of Use Asset Obtained In Exchange For Operating Lease Liability RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability	0	USD
CY2019	us-gaap	Interest Paid Net InterestPaidNet	54043000	USD
CY2018	us-gaap	Interest Paid Net InterestPaidNet	40413000	USD
CY2017	us-gaap	Interest Paid Net InterestPaidNet	25531000	USD
CY2019Q4	us-gaap	Held To Maturity Securities HeldToMaturitySecurities	0	USD
CY2019	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	5585000	USD
CY2018	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	8272000	USD
CY2017	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	10567000	USD
CY2019	us-gaap	Use Of Estimates UseOfEstimates	<div style="line-height:120%;padding-bottom:8px;text-align:justify;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;font-weight:bold;">Use of Estimates in the Preparation of Financial Statements</span><span style="font-family:inherit;font-size:10pt;"> — Financial statements prepared in accordance with U.S. generally accepted accounting principles (GAAP) require the Company to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the financial statements and the reported amounts of income and expenses during the reporting period. Actual results could differ from those estimates.</span></div>
CY2019	srce	Percentage Of Principal Balance That May Be Repurchased Of Delinquent Mortgage Loan PercentageOfPrincipalBalanceThatMayBeRepurchasedOfDelinquentMortgageLoan	1
CY2019Q4	srce	Loan And Lease Portfolio Number Of Classes LoanAndLeasePortfolioNumberOfClasses	8	class
CY2019Q4	srce	Minimum Lease Liabilityfor Capitalization MinimumLeaseLiabilityforCapitalization	2000	USD
CY2019	us-gaap	Lessee Operating Lease Residual Value Guarantee Description LesseeOperatingLeaseResidualValueGuaranteeDescription	no
CY2019	srce	Minimum Initial Lease Termfor Recording Rightof Use Assetand Lease Liability MinimumInitialLeaseTermforRecordingRightofUseAssetandLeaseLiability	P12M
CY2019Q4	us-gaap	Other Real Estate And Foreclosed Assets OtherRealEstateAndForeclosedAssets	520000	USD
CY2018Q4	us-gaap	Other Real Estate And Foreclosed Assets OtherRealEstateAndForeclosedAssets	300000	USD
CY2019Q4	us-gaap	Investments In And Advances To Affiliates At Fair Value InvestmentsInAndAdvancesToAffiliatesAtFairValue	61080000.00	USD
CY2019Q4	us-gaap	Other Foreclosed Assets OtherForeclosedAssets	8620000	USD
CY2018Q4	us-gaap	Other Foreclosed Assets OtherForeclosedAssets	6660000	USD
CY2018Q4	us-gaap	Investments In And Advances To Affiliates At Fair Value InvestmentsInAndAdvancesToAffiliatesAtFairValue	23460000	USD
CY2019	srce	Number Of Reportable Units Used For Goodwill Allocation NumberOfReportableUnitsUsedForGoodwillAllocation	2	unit
CY2019	us-gaap	Goodwill Impairment Loss GoodwillImpairmentLoss	0	USD
CY2019	srce	Equity Method Investment Ownership Percentage Minimum EquityMethodInvestmentOwnershipPercentageMinimum	0.03	Rate
CY2019	us-gaap	Number Of Reportable Segments NumberOfReportableSegments	1	segment
CY2019	us-gaap	Prior Period Reclassification Adjustment Description PriorPeriodReclassificationAdjustmentDescription	<div style="line-height:120%;padding-bottom:8px;text-align:justify;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;font-weight:bold;">Reclassifications</span><span style="font-family:inherit;font-size:10pt;"> — Certain amounts in the prior periods consolidated financial statements have been reclassified to conform with the current year presentation. These reclassifications had no effect on total assets, shareholders’ equity or net income as previously reported.</span></div>
CY2019Q4	us-gaap	Available For Sale Debt Securities Amortized Cost Basis AvailableForSaleDebtSecuritiesAmortizedCostBasis	1033771000	USD
CY2019Q4	us-gaap	Available For Sale Debt Securities Accumulated Gross Unrealized Gain Before Tax AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax	8424000	USD
CY2019Q4	us-gaap	Available For Sale Debt Securities Accumulated Gross Unrealized Loss Before Tax AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax	1612000	USD
CY2019Q4	us-gaap	Available For Sale Securities Debt Securities AvailableForSaleSecuritiesDebtSecurities	1040583000	USD
CY2018Q4	us-gaap	Available For Sale Debt Securities Amortized Cost Basis AvailableForSaleDebtSecuritiesAmortizedCostBasis	1004192000	USD
CY2018Q4	us-gaap	Available For Sale Debt Securities Accumulated Gross Unrealized Gain Before Tax AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax	1086000	USD
CY2018Q4	us-gaap	Available For Sale Debt Securities Accumulated Gross Unrealized Loss Before Tax AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax	15149000	USD
CY2018Q4	us-gaap	Available For Sale Securities Debt Securities AvailableForSaleSecuritiesDebtSecurities	990129000	USD
CY2019Q4	us-gaap	Available For Sale Securities Debt Maturities Next Rolling Twelve Months Amortized Cost Basis AvailableForSaleSecuritiesDebtMaturitiesNextRollingTwelveMonthsAmortizedCostBasis	147306000	USD
CY2019Q4	us-gaap	Available For Sale Securities Debt Maturities Next Rolling Twelve Months Fair Value AvailableForSaleSecuritiesDebtMaturitiesNextRollingTwelveMonthsFairValue	147629000	USD
CY2019Q4	us-gaap	Available For Sale Securities Debt Maturities Rolling Year Two Through Five Amortized Cost Basis AvailableForSaleSecuritiesDebtMaturitiesRollingYearTwoThroughFiveAmortizedCostBasis	482118000	USD
CY2019Q4	us-gaap	Available For Sale Securities Debt Maturities Rolling Year Two Through Five Fair Value AvailableForSaleSecuritiesDebtMaturitiesRollingYearTwoThroughFiveFairValue	485745000	USD
CY2019Q4	us-gaap	Available For Sale Securities Debt Maturities Rolling Year Six Through Ten Amortized Cost Basis AvailableForSaleSecuritiesDebtMaturitiesRollingYearSixThroughTenAmortizedCostBasis	31209000	USD
CY2019Q4	us-gaap	Available For Sale Securities Debt Maturities Rolling Year Six Through Ten Fair Value AvailableForSaleSecuritiesDebtMaturitiesRollingYearSixThroughTenFairValue	31173000	USD
CY2019Q4	us-gaap	Available For Sale Securities Debt Maturities Rolling After Year Ten Amortized Cost Basis AvailableForSaleSecuritiesDebtMaturitiesRollingAfterYearTenAmortizedCostBasis	680000	USD
CY2019Q4	us-gaap	Available For Sale Securities Debt Maturities Rolling After Year Ten Fair Value AvailableForSaleSecuritiesDebtMaturitiesRollingAfterYearTenFairValue	647000	USD
CY2019Q4	us-gaap	Available For Sale Securities Debt Maturities Without Single Maturity Date Amortized Cost AvailableForSaleSecuritiesDebtMaturitiesWithoutSingleMaturityDateAmortizedCost	372458000	USD
CY2019Q4	us-gaap	Available For Sale Securities Debt Maturities Without Single Maturity Date Fair Value AvailableForSaleSecuritiesDebtMaturitiesWithoutSingleMaturityDateFairValue	375389000	USD
CY2018Q4	us-gaap	Debt Securities Available For Sale Unrealized Loss Position DebtSecuritiesAvailableForSaleUnrealizedLossPosition	856050000	USD
CY2018Q4	us-gaap	Debt Securities Available For Sale Unrealized Loss Position Accumulated Loss DebtSecuritiesAvailableForSaleUnrealizedLossPositionAccumulatedLoss	15149000	USD
CY2019Q4	us-gaap	Available For Sale Debt Securities Amortized Cost Basis AvailableForSaleDebtSecuritiesAmortizedCostBasis	1033771000	USD
CY2019Q4	us-gaap	Available For Sale Securities Debt Securities AvailableForSaleSecuritiesDebtSecurities	1040583000	USD
CY2019Q4	srce	Availableforsale Securities Held Qualitative Disclosure Numberof Positions AvailableforsaleSecuritiesHeldQualitativeDisclosureNumberofPositions	629
CY2019Q4	us-gaap	Availableforsale Securities In Unrealized Loss Positions Qualitative Disclosure Number Of Positions1 AvailableforsaleSecuritiesInUnrealizedLossPositionsQualitativeDisclosureNumberOfPositions1	152
CY2019Q4	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position Less Than12 Months DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12Months	178586000	USD
CY2019Q4	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position Less Than12 Months Accumulated Loss DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12MonthsAccumulatedLoss	661000	USD
CY2019Q4	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position12 Months Or Longer DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLonger	129351000	USD
CY2019Q4	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position12 Months Or Longer Accumulated Loss DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLongerAccumulatedLoss	951000	USD
CY2019Q4	us-gaap	Debt Securities Available For Sale Unrealized Loss Position DebtSecuritiesAvailableForSaleUnrealizedLossPosition	307937000	USD
CY2019Q4	us-gaap	Debt Securities Available For Sale Unrealized Loss Position Accumulated Loss DebtSecuritiesAvailableForSaleUnrealizedLossPositionAccumulatedLoss	1612000	USD
CY2018Q4	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position Less Than12 Months DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12Months	164299000	USD
CY2018Q4	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position Less Than12 Months Accumulated Loss DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12MonthsAccumulatedLoss	893000	USD
CY2018Q4	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position12 Months Or Longer DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLonger	691751000	USD
CY2018Q4	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position12 Months Or Longer Accumulated Loss DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLongerAccumulatedLoss	14256000	USD
CY2019	us-gaap	Debt Securities Available For Sale Realized Gain DebtSecuritiesAvailableForSaleRealizedGain	0	USD
CY2018	us-gaap	Debt Securities Available For Sale Realized Gain DebtSecuritiesAvailableForSaleRealizedGain	2000	USD
CY2017	srce	Debt And Equity Securities Available For Sale Realized Gain DebtAndEquitySecuritiesAvailableForSaleRealizedGain	7425000	USD
CY2019	us-gaap	Debt Securities Available For Sale Realized Loss DebtSecuritiesAvailableForSaleRealizedLoss	0	USD
CY2018	us-gaap	Debt Securities Available For Sale Realized Loss DebtSecuritiesAvailableForSaleRealizedLoss	347000	USD
CY2017	srce	Debt And Equity Securities Available For Sale Realized Loss DebtAndEquitySecuritiesAvailableForSaleRealizedLoss	2895000	USD
CY2019	us-gaap	Other Than Temporary Impairment Loss Debt Securities Available For Sale Recognized In Earnings OtherThanTemporaryImpairmentLossDebtSecuritiesAvailableForSaleRecognizedInEarnings	0	USD
CY2018	us-gaap	Other Than Temporary Impairment Loss Debt Securities Available For Sale Recognized In Earnings OtherThanTemporaryImpairmentLossDebtSecuritiesAvailableForSaleRecognizedInEarnings	0	USD
CY2017	srce	Other Than Temporary Impairment Loss Debt And Equity Securities Available For Sale Recognized In Earnings OtherThanTemporaryImpairmentLossDebtAndEquitySecuritiesAvailableForSaleRecognizedInEarnings	190000	USD
CY2019	us-gaap	Debt Securities Available For Sale Realized Gain Loss DebtSecuritiesAvailableForSaleRealizedGainLoss	0	USD
CY2018	us-gaap	Debt Securities Available For Sale Realized Gain Loss DebtSecuritiesAvailableForSaleRealizedGainLoss	-345000	USD
CY2017	srce	Debt And Equity Securities Available For Sale Realized Gain Loss DebtAndEquitySecuritiesAvailableForSaleRealizedGainLoss	4340000	USD
CY2019Q4	us-gaap	Debt Securities Available For Sale Restricted DebtSecuritiesAvailableForSaleRestricted	281380000	USD
CY2018Q4	us-gaap	Debt Securities Available For Sale Restricted DebtSecuritiesAvailableForSaleRestricted	242310000	USD
CY2019Q4	us-gaap	Loans And Leases Receivable Net Of Deferred Income LoansAndLeasesReceivableNetOfDeferredIncome	5090000000.00	USD
CY2018Q4	us-gaap	Loans And Leases Receivable Net Of Deferred Income LoansAndLeasesReceivableNetOfDeferredIncome	4840000000	USD
CY2019Q4	us-gaap	Loans And Leases Receivable Deferred Income LoansAndLeasesReceivableDeferredIncome	5060000.00	USD
CY2018Q4	us-gaap	Loans And Leases Receivable Deferred Income LoansAndLeasesReceivableDeferredIncome	4540000	USD
CY2019Q4	us-gaap	Loans And Leases Receivable Related Parties LoansAndLeasesReceivableRelatedParties	17080000.00	USD
CY2018Q4	us-gaap	Loans And Leases Receivable Related Parties LoansAndLeasesReceivableRelatedParties	11380000	USD
CY2019	us-gaap	Loans And Leases Receivable Related Parties Additions LoansAndLeasesReceivableRelatedPartiesAdditions	6690000	USD
CY2019	us-gaap	Loans And Leases Receivable Related Parties Proceeds LoansAndLeasesReceivableRelatedPartiesProceeds	990000	USD
CY2019	srce	Loans And Leases Receivable Number Of Methods To Assess Credit Risk LoansAndLeasesReceivableNumberOfMethodsToAssessCreditRisk	2	method
CY2019Q4	us-gaap	Financing Receivable Recorded Investment Current FinancingReceivableRecordedInvestmentCurrent	5060613000	USD
CY2019Q4	us-gaap	Financing Receivable Recorded Investment90 Days Past Due And Still Accruing FinancingReceivableRecordedInvestment90DaysPastDueAndStillAccruing	311000	USD
CY2019Q4	srce	Financing Receivable Recorded Investment Accruing Loans FinancingReceivableRecordedInvestmentAccruingLoans	5075738000	USD
CY2019Q4	us-gaap	Financing Receivable Recorded Investment Nonaccrual Status FinancingReceivableRecordedInvestmentNonaccrualStatus	9789000	USD
CY2019Q4	us-gaap	Loans And Leases Receivable Net Of Deferred Income LoansAndLeasesReceivableNetOfDeferredIncome	5085527000	USD
CY2018Q4	us-gaap	Financing Receivable Recorded Investment Current FinancingReceivableRecordedInvestmentCurrent	4792847000	USD
CY2018Q4	us-gaap	Financing Receivable Recorded Investment90 Days Past Due And Still Accruing FinancingReceivableRecordedInvestment90DaysPastDueAndStillAccruing	368000	USD
CY2018Q4	srce	Financing Receivable Recorded Investment Accruing Loans FinancingReceivableRecordedInvestmentAccruingLoans	4807605000	USD
CY2018Q4	us-gaap	Financing Receivable Recorded Investment Nonaccrual Status FinancingReceivableRecordedInvestmentNonaccrualStatus	27859000	USD
CY2018Q4	us-gaap	Loans And Leases Receivable Net Of Deferred Income LoansAndLeasesReceivableNetOfDeferredIncome	4835464000	USD
CY2019	srce	Increase In Interest Income Had Nonaccrual Loans And Leases Been Current IncreaseInInterestIncomeHadNonaccrualLoansAndLeasesBeenCurrent	690000	USD
CY2018	srce	Increase In Interest Income Had Nonaccrual Loans And Leases Been Current IncreaseInInterestIncomeHadNonaccrualLoansAndLeasesBeenCurrent	2180000	USD
CY2017	srce	Increase In Interest Income Had Nonaccrual Loans And Leases Been Current IncreaseInInterestIncomeHadNonaccrualLoansAndLeasesBeenCurrent	1140000	USD
CY2019Q4	us-gaap	Impaired Financing Receivable With No Related Allowance Recorded Investment ImpairedFinancingReceivableWithNoRelatedAllowanceRecordedInvestment	5122000	USD
CY2019Q4	us-gaap	Impaired Financing Receivable With No Related Allowance Unpaid Principal Balance ImpairedFinancingReceivableWithNoRelatedAllowanceUnpaidPrincipalBalance	5122000	USD
CY2019Q4	us-gaap	Impaired Financing Receivable With Related Allowance Recorded Investment ImpairedFinancingReceivableWithRelatedAllowanceRecordedInvestment	11717000	USD
CY2019Q4	us-gaap	Impaired Financing Receivable With Related Allowance Unpaid Principal Balance ImpairedFinancingReceivableWithRelatedAllowanceUnpaidPrincipalBalance	11719000	USD
CY2019Q4	us-gaap	Impaired Financing Receivable Related Allowance ImpairedFinancingReceivableRelatedAllowance	3225000	USD
CY2019Q4	us-gaap	Impaired Financing Receivable Recorded Investment ImpairedFinancingReceivableRecordedInvestment	16839000	USD
CY2018Q4	us-gaap	Impaired Financing Receivable Related Allowance ImpairedFinancingReceivableRelatedAllowance	2083000	USD
CY2019Q4	us-gaap	Impaired Financing Receivable Unpaid Principal Balance ImpairedFinancingReceivableUnpaidPrincipalBalance	16841000	USD
CY2019Q4	us-gaap	Impaired Financing Receivable Related Allowance ImpairedFinancingReceivableRelatedAllowance	3225000	USD
CY2018Q4	us-gaap	Impaired Financing Receivable With No Related Allowance Recorded Investment ImpairedFinancingReceivableWithNoRelatedAllowanceRecordedInvestment	12673000	USD
CY2018Q4	us-gaap	Impaired Financing Receivable With No Related Allowance Unpaid Principal Balance ImpairedFinancingReceivableWithNoRelatedAllowanceUnpaidPrincipalBalance	12673000	USD
CY2018Q4	us-gaap	Impaired Financing Receivable With Related Allowance Recorded Investment ImpairedFinancingReceivableWithRelatedAllowanceRecordedInvestment	13287000	USD
CY2018Q4	us-gaap	Impaired Financing Receivable With Related Allowance Unpaid Principal Balance ImpairedFinancingReceivableWithRelatedAllowanceUnpaidPrincipalBalance	13289000	USD
CY2018Q4	us-gaap	Impaired Financing Receivable Recorded Investment ImpairedFinancingReceivableRecordedInvestment	25960000	USD
CY2018Q4	us-gaap	Impaired Financing Receivable Unpaid Principal Balance ImpairedFinancingReceivableUnpaidPrincipalBalance	25962000	USD
CY2018Q4	us-gaap	Impaired Financing Receivable Related Allowance ImpairedFinancingReceivableRelatedAllowance	2083000	USD
CY2019	us-gaap	Impaired Financing Receivable Average Recorded Investment ImpairedFinancingReceivableAverageRecordedInvestment	15076000	USD
CY2019	us-gaap	Impaired Financing Receivable Interest Income Accrual Method ImpairedFinancingReceivableInterestIncomeAccrualMethod	269000	USD
CY2018	us-gaap	Impaired Financing Receivable Average Recorded Investment ImpairedFinancingReceivableAverageRecordedInvestment	26711000	USD
CY2018	us-gaap	Impaired Financing Receivable Interest Income Accrual Method ImpairedFinancingReceivableInterestIncomeAccrualMethod	35000	USD
CY2017	us-gaap	Impaired Financing Receivable Average Recorded Investment ImpairedFinancingReceivableAverageRecordedInvestment	15409000	USD
CY2017	us-gaap	Impaired Financing Receivable Interest Income Accrual Method ImpairedFinancingReceivableInterestIncomeAccrualMethod	23000	USD
CY2019	us-gaap	Financing Receivable Modifications Number Of Contracts2 FinancingReceivableModificationsNumberOfContracts2	2	modification
CY2019	us-gaap	Financing Receivable Modifications Post Modification Recorded Investment2 FinancingReceivableModificationsPostModificationRecordedInvestment2	10366000	USD
CY2018	us-gaap	Financing Receivable Modifications Number Of Contracts2 FinancingReceivableModificationsNumberOfContracts2	1	modification
CY2018	us-gaap	Financing Receivable Modifications Post Modification Recorded Investment2 FinancingReceivableModificationsPostModificationRecordedInvestment2	285000	USD
CY2017	us-gaap	Financing Receivable Modifications Number Of Contracts2 FinancingReceivableModificationsNumberOfContracts2	1	modification
CY2017	us-gaap	Financing Receivable Modifications Post Modification Recorded Investment2 FinancingReceivableModificationsPostModificationRecordedInvestment2	0	USD
CY2019	srce	Financing Receivable Modifications Subsequent Payment Default Period Past Due FinancingReceivableModificationsSubsequentPaymentDefaultPeriodPastDue	P90D
CY2019Q4	us-gaap	Financing Receivable Modifications Recorded Investment FinancingReceivableModificationsRecordedInvestment	10724000	USD
CY2018Q4	us-gaap	Financing Receivable Modifications Recorded Investment FinancingReceivableModificationsRecordedInvestment	660000	USD
CY2018Q4	us-gaap	Financing Receivable Allowance For Credit Losses FinancingReceivableAllowanceForCreditLosses	100469000	USD
CY2019	us-gaap	Financing Receivable Allowance For Credit Losses Write Offs FinancingReceivableAllowanceForCreditLossesWriteOffs	7591000	USD
CY2019	us-gaap	Financing Receivable Allowance For Credit Losses Recovery FinancingReceivableAllowanceForCreditLossesRecovery	2543000	USD
CY2019	srce	Financing Receivable Allowance For Credit Losses Net Write Offs FinancingReceivableAllowanceForCreditLossesNetWriteOffs	5048000	USD
CY2019	us-gaap	Provision For Loan Lease And Other Losses ProvisionForLoanLeaseAndOtherLosses	15833000	USD
CY2019Q4	us-gaap	Financing Receivable Allowance For Credit Losses FinancingReceivableAllowanceForCreditLosses	111254000	USD
CY2017Q4	us-gaap	Financing Receivable Allowance For Credit Losses FinancingReceivableAllowanceForCreditLosses	94883000	USD
CY2018	us-gaap	Financing Receivable Allowance For Credit Losses Write Offs FinancingReceivableAllowanceForCreditLossesWriteOffs	17112000	USD
CY2018	us-gaap	Financing Receivable Allowance For Credit Losses Recovery FinancingReceivableAllowanceForCreditLossesRecovery	3236000	USD
CY2018	srce	Financing Receivable Allowance For Credit Losses Net Write Offs FinancingReceivableAllowanceForCreditLossesNetWriteOffs	13876000	USD
CY2018	us-gaap	Provision For Loan Lease And Other Losses ProvisionForLoanLeaseAndOtherLosses	19462000	USD
CY2018Q4	us-gaap	Financing Receivable Allowance For Credit Losses FinancingReceivableAllowanceForCreditLosses	100469000	USD
CY2016Q4	us-gaap	Financing Receivable Allowance For Credit Losses FinancingReceivableAllowanceForCreditLosses	88543000	USD
CY2017	us-gaap	Financing Receivable Allowance For Credit Losses Write Offs FinancingReceivableAllowanceForCreditLossesWriteOffs	6529000	USD
CY2017	us-gaap	Financing Receivable Allowance For Credit Losses Recovery FinancingReceivableAllowanceForCreditLossesRecovery	3889000	USD
CY2017	srce	Financing Receivable Allowance For Credit Losses Net Write Offs FinancingReceivableAllowanceForCreditLossesNetWriteOffs	2640000	USD
CY2017	us-gaap	Provision For Loan Lease And Other Losses ProvisionForLoanLeaseAndOtherLosses	8980000	USD
CY2017Q4	us-gaap	Financing Receivable Allowance For Credit Losses FinancingReceivableAllowanceForCreditLosses	94883000	USD
CY2019Q4	us-gaap	Financing Receivable Allowance For Credit Losses Individually Evaluated For Impairment1 FinancingReceivableAllowanceForCreditLossesIndividuallyEvaluatedForImpairment1	3225000	USD
CY2019Q4	us-gaap	Financing Receivable Allowance For Credit Losses Collectively Evaluated For Impairment FinancingReceivableAllowanceForCreditLossesCollectivelyEvaluatedForImpairment	108029000	USD
CY2019Q4	us-gaap	Financing Receivable Allowance For Credit Losses FinancingReceivableAllowanceForCreditLosses	111254000	USD
CY2019Q4	us-gaap	Financing Receivable Individually Evaluated For Impairment FinancingReceivableIndividuallyEvaluatedForImpairment	16839000	USD
CY2019Q4	us-gaap	Financing Receivable Collectively Evaluated For Impairment FinancingReceivableCollectivelyEvaluatedForImpairment	5068688000	USD
CY2019Q4	us-gaap	Loans And Leases Receivable Net Of Deferred Income LoansAndLeasesReceivableNetOfDeferredIncome	5085527000	USD
CY2018Q4	us-gaap	Financing Receivable Allowance For Credit Losses Individually Evaluated For Impairment1 FinancingReceivableAllowanceForCreditLossesIndividuallyEvaluatedForImpairment1	2083000	USD
CY2018Q4	us-gaap	Financing Receivable Allowance For Credit Losses Collectively Evaluated For Impairment FinancingReceivableAllowanceForCreditLossesCollectivelyEvaluatedForImpairment	98386000	USD
CY2018Q4	us-gaap	Financing Receivable Allowance For Credit Losses FinancingReceivableAllowanceForCreditLosses	100469000	USD
CY2018Q4	us-gaap	Financing Receivable Individually Evaluated For Impairment FinancingReceivableIndividuallyEvaluatedForImpairment	25960000	USD
CY2018Q4	us-gaap	Financing Receivable Collectively Evaluated For Impairment FinancingReceivableCollectivelyEvaluatedForImpairment	4809504000	USD
CY2018Q4	us-gaap	Loans And Leases Receivable Net Of Deferred Income LoansAndLeasesReceivableNetOfDeferredIncome	4835464000	USD
CY2019Q4	us-gaap	Direct Financing Lease Lease Receivable DirectFinancingLeaseLeaseReceivable	190879000	USD
CY2018Q4	us-gaap	Direct Financing Lease Lease Receivable DirectFinancingLeaseLeaseReceivable	257398000	USD
CY2019Q4	us-gaap	Direct Financing Lease Unguaranteed Residual Asset DirectFinancingLeaseUnguaranteedResidualAsset	41000	USD
CY2018Q4	us-gaap	Direct Financing Lease Unguaranteed Residual Asset DirectFinancingLeaseUnguaranteedResidualAsset	41000	USD
CY2019Q4	srce	Lessordirectfinanceleaseunearnedincome Lessordirectfinanceleaseunearnedincome	30568000	USD
CY2018Q4	srce	Lessordirectfinanceleaseunearnedincome Lessordirectfinanceleaseunearnedincome	46709000	USD
CY2019Q4	us-gaap	Direct Financing Lease Net Investment In Lease DirectFinancingLeaseNetInvestmentInLease	160352000	USD
CY2018Q4	us-gaap	Direct Financing Lease Net Investment In Lease DirectFinancingLeaseNetInvestmentInLease	210730000	USD
CY2019Q4	srce	Gross Investmentin Operating Lease Financing GrossInvestmentinOperatingLeaseFinancing	176485000	USD
CY2018Q4	srce	Gross Investmentin Operating Lease Financing GrossInvestmentinOperatingLeaseFinancing	199954000	USD
CY2019Q4	srce	Lessor Operating Lease Accumulated Depreciation LessorOperatingLeaseAccumulatedDepreciation	64801000	USD
CY2018Q4	srce	Lessor Operating Lease Accumulated Depreciation LessorOperatingLeaseAccumulatedDepreciation	65514000	USD
CY2019Q4	srce	Net Investmentin Operating Lease Financing NetInvestmentinOperatingLeaseFinancing	111684000	USD
CY2018Q4	srce	Net Investmentin Operating Lease Financing NetInvestmentinOperatingLeaseFinancing	134440000	USD
CY2019Q4	us-gaap	Sales Type And Direct Financing Leases Lease Receivable Payments To Be Received Remainder Of Fiscal Year SalesTypeAndDirectFinancingLeasesLeaseReceivablePaymentsToBeReceivedRemainderOfFiscalYear	42940000	USD
CY2019Q4	us-gaap	Lessor Operating Lease Payments To Be Received Remainder Of Fiscal Year LessorOperatingLeasePaymentsToBeReceivedRemainderOfFiscalYear	33015000	USD
CY2019Q4	us-gaap	Sales Type And Direct Financing Leases Lease Receivable Payments To Be Received Two Years SalesTypeAndDirectFinancingLeasesLeaseReceivablePaymentsToBeReceivedTwoYears	34966000	USD
CY2019Q4	us-gaap	Lessor Operating Lease Payments To Be Received Two Years LessorOperatingLeasePaymentsToBeReceivedTwoYears	20036000	USD
CY2019Q4	us-gaap	Sales Type And Direct Financing Leases Lease Receivable Payments To Be Received Three Years SalesTypeAndDirectFinancingLeasesLeaseReceivablePaymentsToBeReceivedThreeYears	33577000	USD
CY2019Q4	us-gaap	Lessor Operating Lease Payments To Be Received Three Years LessorOperatingLeasePaymentsToBeReceivedThreeYears	12800000	USD
CY2019Q4	us-gaap	Sales Type And Direct Financing Leases Lease Receivable Payments To Be Received Four Years SalesTypeAndDirectFinancingLeasesLeaseReceivablePaymentsToBeReceivedFourYears	29027000	USD
CY2019Q4	us-gaap	Lessor Operating Lease Payments To Be Received Four Years LessorOperatingLeasePaymentsToBeReceivedFourYears	7208000	USD
CY2019Q4	us-gaap	Sales Type And Direct Financing Leases Lease Receivable Payments To Be Received Five Years SalesTypeAndDirectFinancingLeasesLeaseReceivablePaymentsToBeReceivedFiveYears	16001000	USD
CY2019Q4	us-gaap	Lessor Operating Lease Payments To Be Received Five Years LessorOperatingLeasePaymentsToBeReceivedFiveYears	2968000	USD
CY2019Q4	us-gaap	Sales Type And Direct Financing Leases Lease Receivable Payments To Be Received Thereafter SalesTypeAndDirectFinancingLeasesLeaseReceivablePaymentsToBeReceivedThereafter	34368000	USD
CY2019Q4	us-gaap	Lessor Operating Lease Payments To Be Received Thereafter LessorOperatingLeasePaymentsToBeReceivedThereafter	934000	USD
CY2019Q4	us-gaap	Direct Financing Lease Lease Receivable DirectFinancingLeaseLeaseReceivable	190879000	USD
CY2019Q4	us-gaap	Lessor Operating Lease Payments To Be Received LessorOperatingLeasePaymentsToBeReceived	76961000	USD
CY2019Q4	us-gaap	Residual Value Of Leased Asset ResidualValueOfLeasedAsset	69090000.00	USD
CY2018Q4	us-gaap	Residual Value Of Leased Asset ResidualValueOfLeasedAsset	87610000	USD
CY2019	us-gaap	Direct Financing Lease Interest Income DirectFinancingLeaseInterestIncome	10985000	USD
CY2018	us-gaap	Direct Financing Lease Interest Income DirectFinancingLeaseInterestIncome	13052000	USD
CY2018Q4	srce	Time Deposits250000or More TimeDeposits250000orMore	666890000	USD
CY2017	us-gaap	Direct Financing Lease Interest Income DirectFinancingLeaseInterestIncome	11482000	USD
CY2019	us-gaap	Operating Lease Lease Income Lease Payments OperatingLeaseLeaseIncomeLeasePayments	30741000	USD
CY2018	us-gaap	Operating Lease Lease Income Lease Payments OperatingLeaseLeaseIncomeLeasePayments	31793000	USD
CY2017	us-gaap	Operating Lease Lease Income Lease Payments OperatingLeaseLeaseIncomeLeasePayments	30381000	USD
CY2019	srce	Income Relatedto Reimbursementsfrom Lesseeson Operating Leases IncomeRelatedtoReimbursementsfromLesseesonOperatingLeases	730000	USD
CY2019	srce	Expense Relatedto Personal Property Tax Paymentson Operating Leases ExpenseRelatedtoPersonalPropertyTaxPaymentsonOperatingLeases	730000	USD
CY2019Q4	us-gaap	Property Plant And Equipment Gross PropertyPlantAndEquipmentGross	116561000	USD
CY2018Q4	us-gaap	Property Plant And Equipment Gross PropertyPlantAndEquipmentGross	115703000	USD
CY2019Q4	us-gaap	Accumulated Depreciation Depletion And Amortization Property Plant And Equipment AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment	64342000	USD
CY2018Q4	us-gaap	Accumulated Depreciation Depletion And Amortization Property Plant And Equipment AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment	63564000	USD
CY2019Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	52219000	USD
CY2018Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	52139000	USD
CY2019	us-gaap	Depreciation Nonproduction DepreciationNonproduction	5790000	USD
CY2018	us-gaap	Depreciation Nonproduction DepreciationNonproduction	5620000	USD
CY2017	us-gaap	Depreciation Nonproduction DepreciationNonproduction	5660000	USD
CY2019	us-gaap	Impairment Of Long Lived Assets Held For Use ImpairmentOfLongLivedAssetsHeldForUse	0	USD
CY2018	us-gaap	Impairment Of Long Lived Assets Held For Use ImpairmentOfLongLivedAssetsHeldForUse	100000	USD
CY2017	us-gaap	Impairment Of Long Lived Assets Held For Use ImpairmentOfLongLivedAssetsHeldForUse	410000	USD
CY2019	srce	Servicing Asset At Amortized Value Expected Amortization Current ServicingAssetAtAmortizedValueExpectedAmortizationCurrent	760000	USD
CY2019	srce	Servicing Asset At Amortized Value Expected Amortization In Year Two ServicingAssetAtAmortizedValueExpectedAmortizationInYearTwo	640000	USD
CY2019	srce	Servicing Asset At Amortized Value Expected Amortization In Year Three ServicingAssetAtAmortizedValueExpectedAmortizationInYearThree	530000	USD
CY2019	srce	Servicing Asset At Amortized Value Expected Amortization In Year Four ServicingAssetAtAmortizedValueExpectedAmortizationInYearFour	430000	USD
CY2019	srce	Servicing Asset At Amortized Value Expected Amortization In Year Five ServicingAssetAtAmortizedValueExpectedAmortizationInYearFive	360000	USD
CY2019Q4	us-gaap	Goodwill Goodwill	83870000	USD
CY2019Q4	us-gaap	Finite Lived Intangible Assets Net FiniteLivedIntangibleAssetsNet	100000	USD
CY2019Q4	us-gaap	Finite Lived Intangible Assets Accumulated Amortization FiniteLivedIntangibleAssetsAccumulatedAmortization	100000	USD
CY2018Q4	us-gaap	Goodwill Goodwill	83870000	USD
CY2018Q4	us-gaap	Finite Lived Intangible Assets Net FiniteLivedIntangibleAssetsNet	130000	USD
CY2018Q4	us-gaap	Finite Lived Intangible Assets Accumulated Amortization FiniteLivedIntangibleAssetsAccumulatedAmortization	70000.00	USD
CY2019	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	30000.00	USD
CY2018	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	80000.00	USD
CY2017	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	360000	USD
CY2019Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Next Twelve Months FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths	20000.00	USD
CY2019Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Two FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo	20000.00	USD
CY2019Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Three FiniteLivedIntangibleAssetsAmortizationExpenseYearThree	20000.00	USD
CY2019Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Four FiniteLivedIntangibleAssetsAmortizationExpenseYearFour	20000.00	USD
CY2019Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Five FiniteLivedIntangibleAssetsAmortizationExpenseYearFive	20000.00	USD
CY2019Q4	srce	Time Deposits250000or More TimeDeposits250000orMore	749440000	USD
CY2019Q4	srce	Contractual Maturities Time Deposits250000or More Three Monthsor Less ContractualMaturitiesTimeDeposits250000orMoreThreeMonthsorLess	199375000	USD
CY2019Q4	srce	Contractual Maturities Time Deposits250000or More Three Months Through Six Months ContractualMaturitiesTimeDeposits250000orMoreThreeMonthsThroughSixMonths	170902000	USD
CY2019Q4	srce	Contractual Maturities Time Deposits250000or More Six Months Through12 Months ContractualMaturitiesTimeDeposits250000orMoreSixMonthsThrough12Months	156874000	USD
CY2019Q4	srce	Contractual Maturities Time Deposits250000or Moreafter12 Months ContractualMaturitiesTimeDeposits250000orMoreafter12Months	222284000	USD
CY2019Q4	srce	Time Deposits250000or More TimeDeposits250000orMore	749435000	USD
CY2019Q4	us-gaap	Time Deposit Maturities Year One TimeDepositMaturitiesYearOne	1256577000	USD
CY2019Q4	us-gaap	Time Deposit Maturities Year Two TimeDepositMaturitiesYearTwo	227115000	USD
CY2019Q4	us-gaap	Time Deposit Maturities Year Three TimeDepositMaturitiesYearThree	105218000	USD
CY2019Q4	us-gaap	Time Deposit Maturities Year Four TimeDepositMaturitiesYearFour	49999000	USD
CY2019Q4	us-gaap	Time Deposit Maturities Year Five TimeDepositMaturitiesYearFive	7496000	USD
CY2019Q4	us-gaap	Time Deposit Maturities After Year Five TimeDepositMaturitiesAfterYearFive	2093000	USD
CY2019Q4	us-gaap	Time Deposits TimeDeposits	1648498000	USD
CY2019Q4	srce	Long Term Debt And Mandatorily Redeemable Securities LongTermDebtAndMandatorilyRedeemableSecurities	71639000	USD
CY2018Q4	srce	Long Term Debt And Mandatorily Redeemable Securities LongTermDebtAndMandatorilyRedeemableSecurities	71123000	USD
CY2019Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Next Twelve Months LongTermDebtMaturitiesRepaymentsOfPrincipalInNextTwelveMonths	2759000	USD
CY2019Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Two LongTermDebtMaturitiesRepaymentsOfPrincipalInYearTwo	3047000	USD
CY2019Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Three LongTermDebtMaturitiesRepaymentsOfPrincipalInYearThree	4709000	USD
CY2019Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Four LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFour	1928000	USD
CY2019Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Five LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFive	11065000	USD
CY2019Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal After Year Five LongTermDebtMaturitiesRepaymentsOfPrincipalAfterYearFive	48131000	USD
CY2019	us-gaap	Interest Expense Other InterestExpenseOther	2220000	USD
CY2018	us-gaap	Interest Expense Other InterestExpenseOther	1610000	USD
CY2017	us-gaap	Interest Expense Other InterestExpenseOther	1680000	USD
CY2019Q4	us-gaap	Short Term Borrowings ShortTermBorrowings	145893000	USD
CY2019Q4	us-gaap	Short Term Debt Weighted Average Interest Rate ShortTermDebtWeightedAverageInterestRate	0.0042
CY2018Q4	us-gaap	Short Term Borrowings ShortTermBorrowings	199344000	USD
CY2018Q4	us-gaap	Short Term Debt Weighted Average Interest Rate ShortTermDebtWeightedAverageInterestRate	0.0130
CY2019	srce	Federal Tax Credits Recognized In Tax Expense FederalTaxCreditsRecognizedInTaxExpense	1550000	USD
CY2018	srce	Federal Tax Credits Recognized In Tax Expense FederalTaxCreditsRecognizedInTaxExpense	1290000	USD
CY2017	srce	Federal Tax Credits Recognized In Tax Expense FederalTaxCreditsRecognizedInTaxExpense	1150000	USD
CY2019	us-gaap	Investment Tax Credit InvestmentTaxCredit	15860000	USD
CY2018	us-gaap	Investment Tax Credit InvestmentTaxCredit	10450000	USD
CY2017	us-gaap	Investment Tax Credit InvestmentTaxCredit	18160000	USD
CY2019Q4	us-gaap	Variable Interest Entity Nonconsolidated Carrying Amount Assets VariableInterestEntityNonconsolidatedCarryingAmountAssets	19843000	USD
CY2018Q4	us-gaap	Variable Interest Entity Nonconsolidated Carrying Amount Assets VariableInterestEntityNonconsolidatedCarryingAmountAssets	15083000	USD
CY2019Q4	us-gaap	Variable Interest Entity Nonconsolidated Carrying Amount Liabilities VariableInterestEntityNonconsolidatedCarryingAmountLiabilities	17420000	USD
CY2018Q4	us-gaap	Variable Interest Entity Nonconsolidated Carrying Amount Liabilities VariableInterestEntityNonconsolidatedCarryingAmountLiabilities	6449000	USD
CY2019Q4	us-gaap	Variable Interest Entity Entity Maximum Loss Exposure Amount VariableInterestEntityEntityMaximumLossExposureAmount	37904000	USD
CY2018Q4	us-gaap	Variable Interest Entity Entity Maximum Loss Exposure Amount VariableInterestEntityEntityMaximumLossExposureAmount	40705000	USD
CY2019Q4	us-gaap	Variable Interest Entity Consolidated Carrying Amount Assets VariableInterestEntityConsolidatedCarryingAmountAssets	41240000	USD
CY2018Q4	us-gaap	Variable Interest Entity Consolidated Carrying Amount Assets VariableInterestEntityConsolidatedCarryingAmountAssets	8380000	USD
CY2019Q4	us-gaap	Variable Interest Entity Consolidated Liabilities No Recourse VariableInterestEntityConsolidatedLiabilitiesNoRecourse	18680000	USD
CY2018Q4	us-gaap	Variable Interest Entity Consolidated Liabilities No Recourse VariableInterestEntityConsolidatedLiabilitiesNoRecourse	6700000	USD
CY2019	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	3.57
CY2018	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	3.16
CY2019	srce	Number Of Trusts Sponsored NumberOfTrustsSponsored	1	trust
CY2019	srce	Ownership Percentage OwnershipPercentage	1
CY2019Q4	us-gaap	Junior Subordinated Debenture Owed To Unconsolidated Subsidiary Trust JuniorSubordinatedDebentureOwedToUnconsolidatedSubsidiaryTrust	58764000	USD
CY2019	us-gaap	Distributed Earnings DistributedEarnings	28188000	USD
CY2018	us-gaap	Distributed Earnings DistributedEarnings	24894000	USD
CY2017	us-gaap	Distributed Earnings DistributedEarnings	19701000	USD
CY2019	us-gaap	Undistributed Earnings UndistributedEarnings	63254000	USD
CY2018	us-gaap	Undistributed Earnings UndistributedEarnings	56975000	USD
CY2017	us-gaap	Undistributed Earnings UndistributedEarnings	47830000	USD
CY2019	srce	Common Stock Earnings Loss Basic CommonStockEarningsLossBasic	91442000	USD
CY2018	srce	Common Stock Earnings Loss Basic CommonStockEarningsLossBasic	81869000	USD
CY2017	srce	Common Stock Earnings Loss Basic CommonStockEarningsLossBasic	67531000	USD
CY2019	us-gaap	Participating Securities Distributed And Undistributed Earnings Loss Basic ParticipatingSecuritiesDistributedAndUndistributedEarningsLossBasic	-518000	USD
CY2018	us-gaap	Participating Securities Distributed And Undistributed Earnings Loss Basic ParticipatingSecuritiesDistributedAndUndistributedEarningsLossBasic	-545000	USD
CY2017	us-gaap	Participating Securities Distributed And Undistributed Earnings Loss Basic ParticipatingSecuritiesDistributedAndUndistributedEarningsLossBasic	-520000	USD
CY2019	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	91960000	USD
CY2018	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	82414000	USD
CY2017	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	68051000	USD
CY2019	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	25600138	shares
CY2018	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	25937599	shares
CY2017	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	25925820	shares
CY2019	us-gaap	Incremental Common Shares Attributable To Share Based Payment Arrangements IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	0	shares
CY2018	us-gaap	Incremental Common Shares Attributable To Share Based Payment Arrangements IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	0	shares
CY2017	us-gaap	Incremental Common Shares Attributable To Share Based Payment Arrangements IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	0	shares
CY2019	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	25600138	shares
CY2018	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	25937599	shares
CY2017	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	25925820	shares
CY2019	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	3.57
CY2018	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	3.16
CY2017	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	2.60
CY2017	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	2.60
CY2018	srce	Share Based Compensation Arrangement By Share Based Payment Award Share Awards Vested In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardShareAwardsVestedInPeriod	3530000	USD
CY2017	srce	Share Based Compensation Arrangement By Share Based Payment Award Share Awards Vested In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardShareAwardsVestedInPeriod	2370000	USD
CY2016Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Number Of Shares Available For Grant ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant	714005	shares
CY2017	srce	Share Based Compensation Arrangement By Share Based Payment Award Number Of Shares Granted ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesGranted	98625	shares
CY2017	us-gaap	Stock Issued During Period Shares Share Based Compensation Forfeited StockIssuedDuringPeriodSharesShareBasedCompensationForfeited	2000	shares
CY2017Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Number Of Shares Available For Grant ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant	676444	shares
CY2018	srce	Share Based Compensation Arrangement By Share Based Payment Award Number Of Shares Granted ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesGranted	74981	shares
CY2018	us-gaap	Stock Issued During Period Shares Share Based Compensation Forfeited StockIssuedDuringPeriodSharesShareBasedCompensationForfeited	3135	shares
CY2018Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Number Of Shares Available For Grant ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant	675059	shares
CY2019	srce	Share Based Compensation Arrangement By Share Based Payment Award Number Of Shares Granted ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesGranted	74336	shares
CY2019	us-gaap	Stock Issued During Period Shares Share Based Compensation Forfeited StockIssuedDuringPeriodSharesShareBasedCompensationForfeited	1241	shares
CY2019Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Number Of Shares Available For Grant ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant	664502	shares
CY2019Q4	srce	Share Based Compensation Arrangement By Share Based Payment Award Plan Number ShareBasedCompensationArrangementByShareBasedPaymentAwardPlanNumber	4	plan
CY2019	srce	Share Based Compensation Arrangement By Share Based Payment Award Number Of Executive Stock Award Plans ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfExecutiveStockAwardPlans	3	plan
CY2019	srce	Share Based Compensation Arrangement By Share Based Payment Award Share Awards Vested In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardShareAwardsVestedInPeriod	3350000	USD
CY2019	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	-5730000	USD
CY2018	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	-550000	USD
CY2019	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	28130000	USD
CY2018	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	20167000	USD
CY2017	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	26012000	USD
CY2019	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	5739000	USD
CY2018	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	2996000	USD
CY2017	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	4530000	USD
CY2019	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	33869000	USD
CY2018	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	23163000	USD
CY2017	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	30542000	USD
CY2019	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	-5135000	USD
CY2018	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	-875000	USD
CY2017	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	5869000	USD
CY2019	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	-595000	USD
CY2018	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	1200000	USD
CY2017	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	-488000	USD
CY2019	us-gaap	Income Tax Expense Benefit Continuing Operations Adjustment Of Deferred Tax Asset Liability IncomeTaxExpenseBenefitContinuingOperationsAdjustmentOfDeferredTaxAssetLiability	0	USD
CY2017	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	33309000	USD
CY2018	us-gaap	Income Tax Expense Benefit Continuing Operations Adjustment Of Deferred Tax Asset Liability IncomeTaxExpenseBenefitContinuingOperationsAdjustmentOfDeferredTaxAssetLiability	-875000	USD
CY2017	us-gaap	Income Tax Expense Benefit Continuing Operations Adjustment Of Deferred Tax Asset Liability IncomeTaxExpenseBenefitContinuingOperationsAdjustmentOfDeferredTaxAssetLiability	-2614000	USD
CY2019	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.21
CY2019	us-gaap	Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate	25232000	USD
CY2017	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	2767000	USD
CY2019	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	28139000	USD
CY2018	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	22613000	USD
CY2019	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.210
CY2018	us-gaap	Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate	22056000	USD
CY2018	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.210
CY2017	us-gaap	Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate	35476000	USD
CY2017	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.350
CY2019	us-gaap	Income Tax Reconciliation Tax Exempt Income IncomeTaxReconciliationTaxExemptIncome	552000	USD
CY2019	us-gaap	Effective Income Tax Rate Reconciliation Tax Exempt Income EffectiveIncomeTaxRateReconciliationTaxExemptIncome	0.005
CY2018	us-gaap	Income Tax Reconciliation Tax Exempt Income IncomeTaxReconciliationTaxExemptIncome	650000	USD
CY2018	us-gaap	Effective Income Tax Rate Reconciliation Tax Exempt Income EffectiveIncomeTaxRateReconciliationTaxExemptIncome	0.006
CY2017	us-gaap	Income Tax Reconciliation Tax Exempt Income IncomeTaxReconciliationTaxExemptIncome	1197000	USD
CY2017	us-gaap	Effective Income Tax Rate Reconciliation Tax Exempt Income EffectiveIncomeTaxRateReconciliationTaxExemptIncome	0.012
CY2019	us-gaap	Income Tax Reconciliation State And Local Income Taxes IncomeTaxReconciliationStateAndLocalIncomeTaxes	4064000	USD
CY2019	us-gaap	Effective Income Tax Rate Reconciliation Tax Settlements State And Local EffectiveIncomeTaxRateReconciliationTaxSettlementsStateAndLocal	0.034
CY2018	us-gaap	Income Tax Reconciliation State And Local Income Taxes IncomeTaxReconciliationStateAndLocalIncomeTaxes	3315000	USD
CY2018	us-gaap	Effective Income Tax Rate Reconciliation Tax Settlements State And Local EffectiveIncomeTaxRateReconciliationTaxSettlementsStateAndLocal	0.032
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CY2018Q4	us-gaap	Tier One Leverage Capital TierOneLeverageCapital	751575000	USD
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$SRCE
1ST SOURCE CORP Stock $srce

2019 Q4 Form 10-K Financial Statement

#000003478220000035 Filed on February 20, 2020

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

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$SRCE 1ST SOURCE CORP Stock $srce

2019 Q4 Form 10-K Financial Statement

#000003478220000035 Filed on February 20, 2020

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$SRCE
1ST SOURCE CORP Stock $srce