XML 73 R61.htm IDEA: XBRL DOCUMENT
v3.8.0.1

Fair Value Measurements (Details 7) - USD ($) $ in Thousands | Mar. 31, 2018 | Dec. 31, 2017
--- | --- | ---
Assets: |  |
Cash and due from banks | $ 29,404 | $ 73,635
Federal funds sold and interest bearing deposits with other banks | 21,748 | 4,398
Investment securities, available-for-sale | 942,076 | 904,033
Other investments | 27,265 | 25,953
Mortgages held for sale | 8,626 | 13,123
Loans and leases, net of reserve for loan and lease losses | 4,592,766 | 4,432,795
Liabilities: |  |
Long-term debt and mandatorily redeemable securities | 71,335 | 70,060
Subordinated notes | 58,764 | 58,764
Carrying or Contract Value |  |
Assets: |  |
Cash and due from banks | 29,404 | 73,635
Federal funds sold and interest bearing deposits with other banks | 21,748 | 4,398
Investment securities, available-for-sale | 942,076 | 904,033
Other investments | 27,265 | 25,953
Mortgages held for sale | 8,626 | 13,123
Loans and leases, net of reserve for loan and lease losses | 4,592,766 | 4,432,795
Mortgage servicing rights | 4,356 | 4,349
Interest rate swaps | 5,342 | 5,167
Liabilities: |  |
Deposits | 4,781,325 | 4,752,730
Short-term borrowings | 355,964 | 214,595
Long-term debt and mandatorily redeemable securities | 71,335 | 70,060
Subordinated notes | 58,764 | 58,764
Interest rate swaps | 5,439 | 5,262
Off-balance-sheet instruments | 0 | 0
Fair Value |  |
Assets: |  |
Cash and due from banks | 29,404 | 73,635
Federal funds sold and interest bearing deposits with other banks | 21,748 | 4,398
Investment securities, available-for-sale | 942,076 | 904,033
Other investments | 27,265 | 25,953
Mortgages held for sale | 8,626 | 13,123
Loans and leases, net of reserve for loan and lease losses | 4,565,022 | 4,428,848
Mortgage servicing rights | 7,389 | 7,187
Interest rate swaps | 5,342 | 5,167
Liabilities: |  |
Deposits | 4,769,080 | 4,745,111
Short-term borrowings | 355,964 | 214,595
Long-term debt and mandatorily redeemable securities | 68,657 | 67,857
Subordinated notes | 50,198 | 57,103
Interest rate swaps | 5,439 | 5,262
Off-balance-sheet instruments | 287 | 286
Level 1 |  |
Assets: |  |
Cash and due from banks | 29,404 | 73,635
Federal funds sold and interest bearing deposits with other banks | 21,748 | 4,398
Investment securities, available-for-sale | 27,726 | 27,971
Other investments | 27,265 | 25,953
Mortgages held for sale | 0 | 0
Loans and leases, net of reserve for loan and lease losses | 0 | 0
Mortgage servicing rights | 0 | 0
Interest rate swaps | 0 | 0
Liabilities: |  |
Deposits | 3,400,930 | 3,482,757
Short-term borrowings | 144,454 | 206,862
Long-term debt and mandatorily redeemable securities | 0 | 0
Subordinated notes | 0 | 0
Interest rate swaps | 0 | 0
Off-balance-sheet instruments | 0 | 0
Level 2 |  |
Assets: |  |
Cash and due from banks | 0 | 0
Federal funds sold and interest bearing deposits with other banks | 0 | 0
Investment securities, available-for-sale | 911,487 | 873,197
Other investments | 0 | 0
Mortgages held for sale | 8,626 | 13,123
Loans and leases, net of reserve for loan and lease losses | 0 | 0
Mortgage servicing rights | 0 | 0
Interest rate swaps | 5,342 | 5,167
Liabilities: |  |
Deposits | 1,368,150 | 1,262,354
Short-term borrowings | 211,510 | 7,733
Long-term debt and mandatorily redeemable securities | 68,657 | 67,857
Subordinated notes | 50,198 | 57,103
Interest rate swaps | 5,439 | 5,262
Off-balance-sheet instruments | 287 | 286
Level 3 |  |
Assets: |  |
Cash and due from banks | 0 | 0
Federal funds sold and interest bearing deposits with other banks | 0 | 0
Investment securities, available-for-sale | 2,863 | 2,865
Other investments | 0 | 0
Mortgages held for sale | 0 | 0
Loans and leases, net of reserve for loan and lease losses | 4,565,022 | 4,428,848
Mortgage servicing rights | 7,389 | 7,187
Interest rate swaps | 0 | 0
Liabilities: |  |
Deposits | 0 | 0
Short-term borrowings | 0 | 0
Long-term debt and mandatorily redeemable securities | 0 | 0
Subordinated notes | 0 | 0
Interest rate swaps | 0 | 0
Off-balance-sheet instruments | $ 0 | $ 0

X
- Definition This element represents the portion of the balance sheet assertion valued at fair value by the entity whether such amount is presented as a separate caption or as a parenthetical disclosure. Additionally, this element may be used in connection with the fair value disclosures required in the footnote disclosures to the financial statements. The element may be used in both the balance sheet and disclosure in the same submission. For banks and other depository institutions: It includes cash on hand (currency and coin), cash items in process of collection, noninterest bearing deposits due from other financial institutions (including corporate credit unions), and balances with the Federal Reserve Banks and central banks. + References No definition available. + Details
Name: | srce_CashAndDueFromBanksExcludingFederalHomeLoanBankCashFairValueDisclosure
Namespace Prefix: | srce_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition This element represents the amount outstanding of funds lent to other depository institutions, securities brokers, or securities dealers in the form of Federal Funds sold; for example, immediately available funds lent under agreements or contracts that mature in one business day or roll over under a continuing contract, regardless of the nature of the transaction or the collateral involved, excluding overnight lending for commercial and industrial purposes. Also include Federal Funds sold under agreements to resell on a gross basis, excluding (1) sales of term Federal Funds, (2) due bills representing purchases of securities or other assets by the reporting bank that have not yet been delivered and similar instruments, (3) resale agreements that mature in more than one business day involving assets other than securities, and (4) yield maintenance dollar repurchase agreements. Also includes Federal Home Loan Bank cash and interest-bearing deposits with Federal Reserve Banks. In addition, this element also includes interest-bearing deposits in other financial institutions for relatively short periods of time including, for example, certificates of deposits, which are presented separately from cash on the balance sheet. + References No definition available. + Details
Name: | srce_FederalFundsSoldAndInterestBearingDepositsInBanks
Namespace Prefix: | srce_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition This element represents the aggregate carrying amount of long-term borrowings as of the balance sheet date including Federal Home Loan Bank borrowings, current portion of long term debt and promissory notes. Also includes the amount that is required to be paid, determined under the conditions specified in the contract, if as of the reporting date, the shares are mandatorily redeemable after one year from the reporting date or operating cycle, if longer. + References No definition available. + Details
Name: | srce_LongTermDebtAndMandatorilyRedeemableSecurities
Namespace Prefix: | srce_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Amount of investment in debt and equity securities categorized neither as held-to-maturity nor trading. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 25 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=75030427&loc=d3e22054-111558 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 5 -Subparagraph (aa) -URI http://asc.fasb.org/extlink&oid=82897076&loc=d3e27232-111563 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=82896770&loc=d3e26610-111562 + Details
Name: | us-gaap_AvailableForSaleSecurities
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Fair value portion of deposit liabilities held by the entity, including, but not limited to, foreign and domestic, interest and noninterest bearing, demand deposits, saving deposits, negotiable orders of withdrawal (NOW) and time deposits. + References No definition available. + Details
Name: | us-gaap_DepositsFairValueDisclosure
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition The fair value of financial liabilities, which are not recognized in the financial statements (off-balance sheet) because they fail to meet some other criterion for recognition. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 825 -SubTopic 10 -Section 50 -Paragraph 10 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=77997519&loc=d3e13433-108611 + Details
Name: | us-gaap_FairValueDisclosureOffbalanceSheetRisksAmountLiability
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Amount of Federal Home Loan Bank (FHLB) and Federal Reserve Bank stock. + References No definition available. + Details
Name: | us-gaap_FederalHomeLoanBankStockAndFederalReserveBankStock
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- References No definition available. + Details
Name: | us-gaap_FinancialInstrumentsFinancialAssetsBalanceSheetGroupingsAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- References No definition available. + Details
Name: | us-gaap_FinancialInstrumentsFinancialLiabilitiesBalanceSheetGroupingsAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Fair value as of the balance sheet date of all derivative assets not designated as hedging instruments. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4B -Subparagraph (c)(2) -URI http://asc.fasb.org/extlink&oid=84234895&loc=SL5624163-113959 + Details
Name: | us-gaap_InterestRateDerivativeInstrumentsNotDesignatedAsHedgingInstrumentsAssetAtFairValue
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Fair value as of the balance sheet date of all derivative liabilities not designated as hedging instruments. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4B -Subparagraph (c)(2) -URI http://asc.fasb.org/extlink&oid=84234895&loc=SL5624163-113959 + Details
Name: | us-gaap_InterestRateDerivativeInstrumentsNotDesignatedAsHedgingInstrumentsLiabilityAtFairValue
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Including the current and noncurrent portions, the carrying value of junior subordinated long-term debt owed to unconsolidated subsidiary trusts as of the balance sheet date. Such debt places a lender in a lien position behind debt having a higher priority of repayment in liquidation of the entity's assets and was initially scheduled to be repaid after one year or beyond the normal operating cycle if longer. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03.16) -URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03.16) -URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878 + Details
Name: | us-gaap_JuniorSubordinatedDebentureOwedToUnconsolidatedSubsidiaryTrust
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Amount after allowance and deduction of deferred interest and fees, unamortized costs and premiums and discounts from face amounts, of loans and leases held in portfolio, including but not limited to, commercial and consumer loans. Excludes loans and leases covered under loss sharing agreements and loans held for sale. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=82891408&loc=d3e4428-111522 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03.7) -URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878 + Details
Name: | us-gaap_LoansAndLeasesReceivableNetReportedAmount
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Fair value portion of mortgage loans held-for-sale. + References No definition available. + Details
Name: | us-gaap_MortgagesHeldForSaleFairValueDisclosure
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Amortized amount of contract to service financial assets under which the benefits of servicing are expected to more than adequately compensate the servicer. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 860 -SubTopic 50 -Section 25 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=7524895&loc=d3e120260-111741 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 860 -SubTopic 50 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6469459&loc=d3e122492-111745 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 860 -SubTopic 50 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6469459&loc=d3e122501-111745 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 860 -SubTopic 50 -Section 50 -Paragraph 4 -Subparagraph (a)(1) -URI http://asc.fasb.org/extlink&oid=68078379&loc=d3e122739-111746 + Details
Name: | us-gaap_ServicingAssetAtAmortizedValue
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition This element represents the portion of the balance sheet assertion valued at fair value by the entity whether such amount is presented as a separate caption or as a parenthetical disclosure. Additionally, this element may be used in connection with the fair value disclosures required in the footnote disclosures to the financial statements. The element may be used in both the balance sheet and disclosure in the same submission. This item represents the amount of short-term debt existing as of the balance sheet date. + References No definition available. + Details
Name: | us-gaap_ShorttermDebtFairValue
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Details
Name: | us-gaap_FairValueByMeasurementBasisAxis=us-gaap_CarryingReportedAmountFairValueDisclosureMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FairValueByMeasurementBasisAxis=us-gaap_EstimateOfFairValueFairValueDisclosureMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FairValueByFairValueHierarchyLevelAxis=us-gaap_FairValueInputsLevel1Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FairValueByFairValueHierarchyLevelAxis=us-gaap_FairValueInputsLevel2Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FairValueByFairValueHierarchyLevelAxis=us-gaap_FairValueInputsLevel3Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |