XML 73 R58.htm IDEA: XBRL DOCUMENT
v3.22.4

Loans And Allowance For Loan Losses - Troubled Debt Restructurings (Details) | 12 Months Ended
--- | ---
Dec. 31, 2022 USD ($) contract | Dec. 31, 2021 USD ($) contract | Dec. 31, 2020 USD ($) contract
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |
Number of Contracts | contract | 206 | 382 | 352
Total loans | $ 131,186,000 | $ 48,932,000 | $ 76,615,000
Write-down | $ 0 | $ 0 | $ 0
Commercial And Industrial |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |
Number of Contracts | contract | 115 | 176 | 174
Total loans | $ 105,610,000 | $ 27,618,000 | $ 28,917,000
Commercial And Industrial | Commercial, financial, and agricultural |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |
Number of Contracts | contract | 86 | 152 | 152
Total loans | $ 35,797,000 | $ 20,842,000 | $ 22,851,000
Commercial And Industrial | Owner-occupied |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |
Number of Contracts | contract | 29 | 24 | 22
Total loans | $ 69,813,000 | $ 6,776,000 | $ 6,066,000
Commercial Real Estate |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |
Number of Contracts | contract | 25 | 30 | 35
Total loans | $ 18,654,000 | $ 6,392,000 | $ 34,579,000
Commercial Real Estate | Investment properties |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |
Number of Contracts | contract | 7 | 9 | 9
Total loans | $ 11,636,000 | $ 3,130,000 | $ 31,099,000
Commercial Real Estate | 1-4 family properties |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |
Number of Contracts | contract | 14 | 13 | 22
Total loans | $ 3,850,000 | $ 1,254,000 | $ 2,874,000
Commercial Real Estate | Land and development |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |
Number of Contracts | contract | 4 | 8 | 4
Total loans | $ 3,168,000 | $ 2,008,000 | $ 606,000
Consumer |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |
Number of Contracts | contract | 66 | 176 | 143
Total loans | $ 6,922,000 | $ 14,922,000 | $ 13,119,000
Consumer | Consumer mortgages |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |
Number of Contracts | contract | 10 | 18 | 23
Total loans | $ 1,442,000 | $ 3,518,000 | $ 4,655,000
Consumer | Home equity |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |
Number of Contracts | contract | 41 | 55 | 63
Total loans | $ 4,875,000 | $ 5,249,000 | $ 4,500,000
Consumer | Other consumer loans |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |
Number of Contracts | contract | 15 | 103 | 57
Total loans | $ 605,000 | $ 6,155,000 | $ 3,964,000
Below Market Interest Rate |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |
Total loans | 118,530,000 | 32,801,000 | 52,550,000
Below Market Interest Rate | Commercial And Industrial |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |
Total loans | 100,474,000 | 18,654,000 | 15,475,000
Below Market Interest Rate | Commercial And Industrial | Commercial, financial, and agricultural |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |
Total loans | 34,518,000 | 12,746,000 | 10,939,000
Below Market Interest Rate | Commercial And Industrial | Owner-occupied |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |
Total loans | 65,956,000 | 5,908,000 | 4,536,000
Below Market Interest Rate | Commercial Real Estate |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |
Total loans | 12,044,000 | 6,209,000 | 32,054,000
Below Market Interest Rate | Commercial Real Estate | Investment properties |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |
Total loans | 5,026,000 | 3,130,000 | 29,679,000
Below Market Interest Rate | Commercial Real Estate | 1-4 family properties |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |
Total loans | 3,850,000 | 1,131,000 | 1,769,000
Below Market Interest Rate | Commercial Real Estate | Land and development |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |
Total loans | 3,168,000 | 1,948,000 | 606,000
Below Market Interest Rate | Consumer |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |
Total loans | 6,012,000 | 7,938,000 | 5,021,000
Below Market Interest Rate | Consumer | Consumer mortgages |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |
Total loans | 1,176,000 | 2,512,000 | 1,866,000
Below Market Interest Rate | Consumer | Home equity |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |
Total loans | 4,836,000 | 4,991,000 | 1,970,000
Below Market Interest Rate | Consumer | Other consumer loans |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |
Total loans | 0 | 435,000 | 1,185,000
Other Concessions |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |
Total loans | 12,656,000 | 16,131,000 | 24,065,000
Other Concessions | Commercial And Industrial |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |
Total loans | 5,136,000 | 8,964,000 | 13,442,000
Other Concessions | Commercial And Industrial | Commercial, financial, and agricultural |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |
Total loans | 1,279,000 | 8,096,000 | 11,912,000
Other Concessions | Commercial And Industrial | Owner-occupied |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |
Total loans | 3,857,000 | 868,000 | 1,530,000
Other Concessions | Commercial Real Estate |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |
Total loans | 6,610,000 | 183,000 | 2,525,000
Other Concessions | Commercial Real Estate | Investment properties |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |
Total loans | 6,610,000 | 0 | 1,420,000
Other Concessions | Commercial Real Estate | 1-4 family properties |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |
Total loans | 0 | 123,000 | 1,105,000
Other Concessions | Commercial Real Estate | Land and development |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |
Total loans | 0 | 60,000 | 0
Other Concessions | Consumer |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |
Total loans | 910,000 | 6,984,000 | 8,098,000
Other Concessions | Consumer | Consumer mortgages |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |
Total loans | 266,000 | 1,006,000 | 2,789,000
Other Concessions | Consumer | Home equity |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |
Total loans | 39,000 | 258,000 | 2,530,000
Other Concessions | Consumer | Other consumer loans |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |
Total loans | 605,000 | 5,720,000 | 2,779,000
Principal Forgiveness |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |
Total loans | $ 0 | $ 0 | $ 0

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_FinancingReceivableModificationsLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Number of financing receivables that have been modified by troubled debt restructurings. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 33 -URI https://asc.fasb.org/extlink&oid=123577603&loc=SL6953676-111524 + Details
Name: | us-gaap_FinancingReceivableModificationsNumberOfContracts2
Namespace Prefix: | us-gaap_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | duration

X
- Definition Amount, after troubled debt restructuring, of modified financing receivable. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 33 -URI https://asc.fasb.org/extlink&oid=123577603&loc=SL6953676-111524 + Details
Name: | us-gaap_FinancingReceivableModificationsPostModificationRecordedInvestment2
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Reflects the amount of the write-down related to a troubled debt restructuring. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 40 -Section 50 -Paragraph 4 -URI https://asc.fasb.org/extlink&oid=121585226&loc=d3e18845-111554 + Details
Name: | us-gaap_FinancingReceivablesImpairedTroubledDebtRestructuringWriteDown
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Details
Name: | us-gaap_FinancingReceivablePortfolioSegmentAxis=syn_CommercialAndIndustrialMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis=syn_CommercialFinancialandAgriculturalMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis=syn_OwnerOccupiedMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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

X
- Details
Name: | us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis=syn_InvestmentPropertiesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis=syn_OneToFourFamilyPropertiesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis=syn_LandAcquisitionMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancingReceivablePortfolioSegmentAxis=us-gaap_RetailMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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

X
- Details
Name: | us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis=us-gaap_HomeEquityMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis=syn_OtherConsumerLoansMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_LoanRestructuringModificationAxis=us-gaap_InterestRateBelowMarketReductionMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_LoanRestructuringModificationAxis=syn_TermExtensionsAndOrOtherConcessionsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_LoanRestructuringModificationAxis=us-gaap_PrincipalForgivenessMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |