XML 70 R57.htm IDEA: XBRL DOCUMENT
v3.20.4

Loan and Lease Financings (Details 3) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2020 | Dec. 31, 2019 | Dec. 31, 2018
Amortized cost of loans and leases, segregated by class, with delinquency aging and nonaccrual status |  |  |
Current | $ 5,424,982 | $ 5,060,613 |
90 Days or More Past Due and Accruing | 115 | 311 |
Total Accruing Loans | 5,428,913 | 5,075,738 |
Nonaccrual | 60,388 | 9,789 |
Total loans and leases | 5,489,301 | 5,085,527 |
Increase in interest income | 3,490 | 690 | $ 2,180
Commercial and agricultural |  |  |
Amortized cost of loans and leases, segregated by class, with delinquency aging and nonaccrual status |  |  |
Current | 1,472,755 | 1,131,704 |
Total Accruing Loans | 1,472,789 | 1,131,822 |
Nonaccrual | 5,933 | 969 |
Total loans and leases | 1,478,722 | 1,132,791 |
Auto and light truck |  |  |
Amortized cost of loans and leases, segregated by class, with delinquency aging and nonaccrual status |  |  |
Current | 504,659 | 586,212 |
Total Accruing Loans | 505,424 | 587,557 |
Nonaccrual | 36,945 | 1,250 |
Total loans and leases | 542,369 | 588,807 |
Medium and heavy duty truck |  |  |
Amortized cost of loans and leases, segregated by class, with delinquency aging and nonaccrual status |  |  |
Current | 278,452 | 293,736 |
Total Accruing Loans | 278,452 | 293,750 |
Nonaccrual | 720 | 1,074 |
Total loans and leases | 279,172 | 294,824 |
Aircraft |  |  |
Amortized cost of loans and leases, segregated by class, with delinquency aging and nonaccrual status |  |  |
Current | 860,632 | 772,846 |
Total Accruing Loans | 860,632 | 783,165 |
Nonaccrual | 828 | 875 |
Total loans and leases | 861,460 | 784,040 |
Construction equipment |  |  |
Amortized cost of loans and leases, segregated by class, with delinquency aging and nonaccrual status |  |  |
Current | 701,124 | 702,671 |
Total Accruing Loans | 702,515 | 704,099 |
Nonaccrual | 12,373 | 1,352 |
Total loans and leases | 714,888 | 705,451 |
Commercial real estate |  |  |
Amortized cost of loans and leases, segregated by class, with delinquency aging and nonaccrual status |  |  |
Current | 968,370 | 906,468 |
Total Accruing Loans | 968,370 | 906,526 |
Nonaccrual | 1,494 | 1,651 |
Total loans and leases | 969,864 | 908,177 |
Residential real estate and home equity |  |  |
Amortized cost of loans and leases, segregated by class, with delinquency aging and nonaccrual status |  |  |
Current | 508,532 | 528,844 |
90 Days or More Past Due and Accruing | 108 | 257 |
Total Accruing Loans | 509,661 | 529,814 |
Nonaccrual | 1,718 | 2,189 |
Total loans and leases | 511,379 | 532,003 |
Consumer |  |  |
Amortized cost of loans and leases, segregated by class, with delinquency aging and nonaccrual status |  |  |
Current | 130,458 | 138,132 |
90 Days or More Past Due and Accruing | 7 | 54 |
Total Accruing Loans | 131,070 | 139,005 |
Nonaccrual | 377 | 429 |
Total loans and leases | 131,447 | 139,434 |
30 to 59 Days Past Due |  |  |
Amortized cost of loans and leases, segregated by class, with delinquency aging and nonaccrual status |  |  |
Past Due | 2,973 | 10,496 |
30 to 59 Days Past Due | Commercial and agricultural |  |  |
Amortized cost of loans and leases, segregated by class, with delinquency aging and nonaccrual status |  |  |
Past Due | 34 | 118 |
30 to 59 Days Past Due | Auto and light truck |  |  |
Amortized cost of loans and leases, segregated by class, with delinquency aging and nonaccrual status |  |  |
Past Due | 560 | 1,268 |
30 to 59 Days Past Due | Medium and heavy duty truck |  |  |
Amortized cost of loans and leases, segregated by class, with delinquency aging and nonaccrual status |  |  |
Past Due | 0 | 14 |
30 to 59 Days Past Due | Aircraft |  |  |
Amortized cost of loans and leases, segregated by class, with delinquency aging and nonaccrual status |  |  |
Past Due | 0 | 7,026 |
30 to 59 Days Past Due | Construction equipment |  |  |
Amortized cost of loans and leases, segregated by class, with delinquency aging and nonaccrual status |  |  |
Past Due | 1,093 | 819 |
30 to 59 Days Past Due | Commercial real estate |  |  |
Amortized cost of loans and leases, segregated by class, with delinquency aging and nonaccrual status |  |  |
Past Due | 0 | 58 |
30 to 59 Days Past Due | Residential real estate and home equity |  |  |
Amortized cost of loans and leases, segregated by class, with delinquency aging and nonaccrual status |  |  |
Past Due | 782 | 561 |
30 to 59 Days Past Due | Consumer |  |  |
Amortized cost of loans and leases, segregated by class, with delinquency aging and nonaccrual status |  |  |
Past Due | 504 | 632 |
60 to 89 Days Past Due |  |  |
Amortized cost of loans and leases, segregated by class, with delinquency aging and nonaccrual status |  |  |
Past Due | 843 | 4,318 |
60 to 89 Days Past Due | Commercial and agricultural |  |  |
Amortized cost of loans and leases, segregated by class, with delinquency aging and nonaccrual status |  |  |
Past Due | 0 | 0 |
60 to 89 Days Past Due | Auto and light truck |  |  |
Amortized cost of loans and leases, segregated by class, with delinquency aging and nonaccrual status |  |  |
Past Due | 205 | 77 |
60 to 89 Days Past Due | Medium and heavy duty truck |  |  |
Amortized cost of loans and leases, segregated by class, with delinquency aging and nonaccrual status |  |  |
Past Due | 0 | 0 |
60 to 89 Days Past Due | Aircraft |  |  |
Amortized cost of loans and leases, segregated by class, with delinquency aging and nonaccrual status |  |  |
Past Due | 0 | 3,293 |
60 to 89 Days Past Due | Construction equipment |  |  |
Amortized cost of loans and leases, segregated by class, with delinquency aging and nonaccrual status |  |  |
Past Due | 298 | 609 |
60 to 89 Days Past Due | Commercial real estate |  |  |
Amortized cost of loans and leases, segregated by class, with delinquency aging and nonaccrual status |  |  |
Past Due | 0 | 0 |
60 to 89 Days Past Due | Residential real estate and home equity |  |  |
Amortized cost of loans and leases, segregated by class, with delinquency aging and nonaccrual status |  |  |
Past Due | 239 | 152 |
60 to 89 Days Past Due | Consumer |  |  |
Amortized cost of loans and leases, segregated by class, with delinquency aging and nonaccrual status |  |  |
Past Due | $ 101 | $ 187 |

X
- Definition Represents recorded investment in financing receivables that are accruing. + References No definition available. + Details
Name: | source_FinancingReceivableRecordedInvestmentAccruingLoans
Namespace Prefix: | source_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Represents interest income which would have been received if nonaccrual loans and leases had earned interest at their full contract rate. + References No definition available. + Details
Name: | source_IncreaseInInterestIncomeHadNonaccrualLoansAndLeasesBeenCurrent
Namespace Prefix: | source_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Amount of financing receivable 90 days or more past due and still accruing. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 20 -Section 50 -Paragraph 16 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=121599337&loc=SL82919258-210447 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 7 -Subparagraph (d) -URI http://asc.fasb.org/extlink&oid=121611835&loc=d3e5111-111524 Reference 3: http://www.xbrl.org/2003/role/exampleRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 20 -Section 55 -Paragraph 80 -URI http://asc.fasb.org/extlink&oid=121647567&loc=SL82922355-210448 + Details
Name: | us-gaap_FinancingReceivableRecordedInvestment90DaysPastDueAndStillAccruing
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Amount of financing receivable not past due. + References Reference 1: http://fasb.org/us-gaap/role/ref/otherTransitionRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 7A -URI http://asc.fasb.org/extlink&oid=121611835&loc=SL6953401-111524 Reference 2: http://www.xbrl.org/2003/role/exampleRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 20 -Section 55 -Paragraph 80 -URI http://asc.fasb.org/extlink&oid=121647567&loc=SL82922355-210448 Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 20 -Section 50 -Paragraph 14 -URI http://asc.fasb.org/extlink&oid=121599337&loc=SL82919253-210447 + Details
Name: | us-gaap_FinancingReceivableRecordedInvestmentCurrent
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Amount of financing receivable on nonaccrual status. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 7 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=121611835&loc=d3e5111-111524 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 20 -Section 50 -Paragraph 16 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=121599337&loc=SL82919258-210447 + Details
Name: | us-gaap_FinancingReceivableRecordedInvestmentNonaccrualStatus
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Amount of financing receivable past due. + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 20 -Section 55 -Paragraph 80 -URI http://asc.fasb.org/extlink&oid=121647567&loc=SL82922355-210448 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 20 -Section 50 -Paragraph 14 -URI http://asc.fasb.org/extlink&oid=121599337&loc=SL82919253-210447 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 7A -URI http://asc.fasb.org/extlink&oid=121611835&loc=SL6953401-111524 + Details
Name: | us-gaap_FinancingReceivableRecordedInvestmentPastDue
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
Name: | us-gaap_FinancingReceivableRecordedInvestmentPastDueLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Amount before allowance and after 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. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=121593590&loc=d3e4428-111522 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=121611835&loc=d3e5074-111524 + Details
Name: | us-gaap_LoansAndLeasesReceivableNetOfDeferredIncome
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Details
Name: | us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis=source_CommercialAndAgriculturalLoansMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis=source_AutoAndLightTruckMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis=source_MediumAndHeavyDutyTruckMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis=source_AircraftFinancingMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis=source_ConstructionEquipmentFinancingMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis=us-gaap_CommercialRealEstateMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis=us-gaap_ResidentialRealEstateMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis=us-gaap_ConsumerLoanMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancingReceivablesPeriodPastDueAxis=us-gaap_FinancingReceivables30To59DaysPastDueMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancingReceivablesPeriodPastDueAxis=us-gaap_FinancingReceivables60To89DaysPastDueMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |