XML 91 R72.htm IDEA: XBRL DOCUMENT
v3.22.0.1

Allowance for Credit Losses (Troubled Debt Restructuring) (Details) - USD ($) $ in Thousands | Dec. 31, 2021 | Dec. 31, 2020 | Dec. 31, 2019
--- | --- | --- | ---
Financing Receivable, Modifications [Line Items] |  |  |
Accruing | $ 194,548 | $ 208,180 | $ 171,192
Nonaccruing | 120,306 | 191,483 |
PCD Loans |  |  |
Financing Receivable, Modifications [Line Items] |  |  |
Accruing | 39,336 | 24,963 |
Commercial |  |  |
Financing Receivable, Modifications [Line Items] |  |  |
Accruing |  | 101,739 | 77,536
Commercial | Financial Asset Acquired and No Credit Deterioration |  |  |
Financing Receivable, Modifications [Line Items] |  |  |
Accruing | 95,307 |  |
Commercial | Construction and land development |  |  |
Financing Receivable, Modifications [Line Items] |  |  |
Accruing |  | 632 | 2,766
Commercial | Construction and land development | Financial Asset Acquired and No Credit Deterioration |  |  |
Financing Receivable, Modifications [Line Items] |  |  |
Accruing | 357 |  |
Commercial | Mortgage |  |  |
Financing Receivable, Modifications [Line Items] |  |  |
Accruing |  |  | 61,935
Commercial | Other commercial real estate |  |  |
Financing Receivable, Modifications [Line Items] |  |  |
Accruing |  |  | 571
Commercial | Commercial and industrial |  |  |
Financing Receivable, Modifications [Line Items] |  |  |
Accruing |  | 32,659 | 11,839
Commercial | Commercial and industrial | Financial Asset Acquired and No Credit Deterioration |  |  |
Financing Receivable, Modifications [Line Items] |  |  |
Accruing | 21,107 |  |
Commercial | Other |  |  |
Financing Receivable, Modifications [Line Items] |  |  |
Accruing |  |  | 425
Commercial | Mortgage Receivable, Owner Occupied | Financial Asset Acquired and No Credit Deterioration |  |  |
Financing Receivable, Modifications [Line Items] |  |  |
Accruing | 49,824 | 48,463 |
Commercial | Mortgage Receivable, Non-Owner Occupied | Financial Asset Acquired and No Credit Deterioration |  |  |
Financing Receivable, Modifications [Line Items] |  |  |
Accruing | 24,019 | 19,985 |
Consumer Portfolio Segment |  |  |
Financing Receivable, Modifications [Line Items] |  |  |
Accruing |  |  | 93,656
Consumer Portfolio Segment | Financial Asset Acquired and No Credit Deterioration |  |  |
Financing Receivable, Modifications [Line Items] |  |  |
Accruing | 59,905 | 81,478 |
Consumer Portfolio Segment | Construction and land development |  |  |
Financing Receivable, Modifications [Line Items] |  |  |
Accruing |  | 1,582 | 3,882
Consumer Portfolio Segment | Construction and land development | Financial Asset Acquired and No Credit Deterioration |  |  |
Financing Receivable, Modifications [Line Items] |  |  |
Accruing | 1,220 |  |
Consumer Portfolio Segment | Consumer Auto Loan | Financial Asset Acquired and No Credit Deterioration |  |  |
Financing Receivable, Modifications [Line Items] |  |  |
Accruing | 2,282 | 2,714 |
Consumer Portfolio Segment | Mortgage |  |  |
Financing Receivable, Modifications [Line Items] |  |  |
Accruing |  | 48,838 | 57,861
Consumer Portfolio Segment | Mortgage | Financial Asset Acquired and No Credit Deterioration |  |  |
Financing Receivable, Modifications [Line Items] |  |  |
Accruing | 32,897 |  |
Consumer Portfolio Segment | Revolving mortgage |  |  |
Financing Receivable, Modifications [Line Items] |  |  |
Accruing |  | 27,252 | 28,399
Consumer Portfolio Segment | Revolving mortgage | Financial Asset Acquired and No Credit Deterioration |  |  |
Financing Receivable, Modifications [Line Items] |  |  |
Accruing | 22,717 |  |
Consumer Portfolio Segment | Consumer and Other |  |  |
Financing Receivable, Modifications [Line Items] |  |  |
Accruing |  |  | 3,514
Consumer Portfolio Segment | Consumer and Other | Financial Asset Acquired and No Credit Deterioration |  |  |
Financing Receivable, Modifications [Line Items] |  |  |
Accruing | 789 | 1,092 |
Accruing |  |  |
Financing Receivable, Modifications [Line Items] |  |  |
Accruing | 146,781 | 157,364 | 128,750
Accruing | PCD Loans |  |  |
Financing Receivable, Modifications [Line Items] |  |  |
Accruing | 29,401 | 17,617 |
Accruing | Commercial |  |  |
Financing Receivable, Modifications [Line Items] |  |  |
Accruing |  | 85,619 | 61,627
Accruing | Commercial | Financial Asset Acquired and No Credit Deterioration |  |  |
Financing Receivable, Modifications [Line Items] |  |  |
Accruing | 76,922 |  |
Accruing | Commercial | Construction and land development |  |  |
Financing Receivable, Modifications [Line Items] |  |  |
Accruing |  | 578 | 487
Accruing | Commercial | Construction and land development | Financial Asset Acquired and No Credit Deterioration |  |  |
Financing Receivable, Modifications [Line Items] |  |  |
Accruing | 328 |  |
Accruing | Commercial | Mortgage |  |  |
Financing Receivable, Modifications [Line Items] |  |  |
Accruing |  |  | 50,819
Accruing | Commercial | Other commercial real estate |  |  |
Financing Receivable, Modifications [Line Items] |  |  |
Accruing |  |  | 571
Accruing | Commercial | Commercial and industrial |  |  |
Financing Receivable, Modifications [Line Items] |  |  |
Accruing |  | 29,131 | 9,430
Accruing | Commercial | Commercial and industrial | Financial Asset Acquired and No Credit Deterioration |  |  |
Financing Receivable, Modifications [Line Items] |  |  |
Accruing | 11,723 |  |
Accruing | Commercial | Other |  |  |
Financing Receivable, Modifications [Line Items] |  |  |
Accruing |  |  | 320
Accruing | Commercial | Mortgage Receivable, Owner Occupied | Financial Asset Acquired and No Credit Deterioration |  |  |
Financing Receivable, Modifications [Line Items] |  |  |
Accruing | 43,593 | 37,574 |
Accruing | Commercial | Mortgage Receivable, Non-Owner Occupied | Financial Asset Acquired and No Credit Deterioration |  |  |
Financing Receivable, Modifications [Line Items] |  |  |
Accruing | 21,278 | 18,336 |
Accruing | Consumer Portfolio Segment |  |  |
Financing Receivable, Modifications [Line Items] |  |  |
Accruing |  |  | 67,123
Accruing | Consumer Portfolio Segment | Financial Asset Acquired and No Credit Deterioration |  |  |
Financing Receivable, Modifications [Line Items] |  |  |
Accruing | 40,458 | 54,128 |
Accruing | Consumer Portfolio Segment | Construction and land development |  |  |
Financing Receivable, Modifications [Line Items] |  |  |
Accruing |  | 1,573 | 1,452
Accruing | Consumer Portfolio Segment | Construction and land development | Financial Asset Acquired and No Credit Deterioration |  |  |
Financing Receivable, Modifications [Line Items] |  |  |
Accruing | 961 |  |
Accruing | Consumer Portfolio Segment | Consumer Auto Loan | Financial Asset Acquired and No Credit Deterioration |  |  |
Financing Receivable, Modifications [Line Items] |  |  |
Accruing | 1,827 | 2,018 |
Accruing | Consumer Portfolio Segment | Mortgage |  |  |
Financing Receivable, Modifications [Line Items] |  |  |
Accruing |  | 29,458 | 41,813
Accruing | Consumer Portfolio Segment | Mortgage | Financial Asset Acquired and No Credit Deterioration |  |  |
Financing Receivable, Modifications [Line Items] |  |  |
Accruing | 20,635 |  |
Accruing | Consumer Portfolio Segment | Revolving mortgage |  |  |
Financing Receivable, Modifications [Line Items] |  |  |
Accruing |  | 20,124 | 21,032
Accruing | Consumer Portfolio Segment | Revolving mortgage | Financial Asset Acquired and No Credit Deterioration |  |  |
Financing Receivable, Modifications [Line Items] |  |  |
Accruing | 16,322 |  |
Accruing | Consumer Portfolio Segment | Consumer and Other |  |  |
Financing Receivable, Modifications [Line Items] |  |  |
Accruing |  |  | 2,826
Accruing | Consumer Portfolio Segment | Consumer and Other | Financial Asset Acquired and No Credit Deterioration |  |  |
Financing Receivable, Modifications [Line Items] |  |  |
Accruing | 713 | 955 |
Nonaccruing |  |  |
Financing Receivable, Modifications [Line Items] |  |  |
Nonaccruing | 47,767 | 50,816 | 42,442
Nonaccruing | PCD Loans |  |  |
Financing Receivable, Modifications [Line Items] |  |  |
Accruing | 9,935 | 7,346 |
Nonaccruing | Commercial |  |  |
Financing Receivable, Modifications [Line Items] |  |  |
Nonaccruing |  | 16,120 | 15,909
Nonaccruing | Commercial | Financial Asset Acquired and No Credit Deterioration |  |  |
Financing Receivable, Modifications [Line Items] |  |  |
Nonaccruing | 18,385 |  |
Nonaccruing | Commercial | Construction and land development |  |  |
Financing Receivable, Modifications [Line Items] |  |  |
Nonaccruing |  | 54 | 2,279
Nonaccruing | Commercial | Construction and land development | Financial Asset Acquired and No Credit Deterioration |  |  |
Financing Receivable, Modifications [Line Items] |  |  |
Nonaccruing | 29 |  |
Nonaccruing | Commercial | Mortgage |  |  |
Financing Receivable, Modifications [Line Items] |  |  |
Nonaccruing |  |  | 11,116
Nonaccruing | Commercial | Other commercial real estate |  |  |
Financing Receivable, Modifications [Line Items] |  |  |
Nonaccruing |  |  | 0
Nonaccruing | Commercial | Commercial and industrial |  |  |
Financing Receivable, Modifications [Line Items] |  |  |
Nonaccruing |  | 3,528 | 2,409
Nonaccruing | Commercial | Commercial and industrial | Financial Asset Acquired and No Credit Deterioration |  |  |
Financing Receivable, Modifications [Line Items] |  |  |
Nonaccruing | 9,384 |  |
Nonaccruing | Commercial | Other |  |  |
Financing Receivable, Modifications [Line Items] |  |  |
Nonaccruing |  |  | 105
Nonaccruing | Commercial | Mortgage Receivable, Owner Occupied | Financial Asset Acquired and No Credit Deterioration |  |  |
Financing Receivable, Modifications [Line Items] |  |  |
Nonaccruing | 6,231 | 10,889 |
Nonaccruing | Commercial | Mortgage Receivable, Non-Owner Occupied | Financial Asset Acquired and No Credit Deterioration |  |  |
Financing Receivable, Modifications [Line Items] |  |  |
Nonaccruing | 2,741 | 1,649 |
Nonaccruing | Consumer Portfolio Segment |  |  |
Financing Receivable, Modifications [Line Items] |  |  |
Nonaccruing |  |  | 26,533
Nonaccruing | Consumer Portfolio Segment | Financial Asset Acquired and No Credit Deterioration |  |  |
Financing Receivable, Modifications [Line Items] |  |  |
Nonaccruing | 19,447 | 27,350 |
Nonaccruing | Consumer Portfolio Segment | Construction and land development |  |  |
Financing Receivable, Modifications [Line Items] |  |  |
Nonaccruing |  | 9 | 2,430
Nonaccruing | Consumer Portfolio Segment | Construction and land development | Financial Asset Acquired and No Credit Deterioration |  |  |
Financing Receivable, Modifications [Line Items] |  |  |
Nonaccruing | 259 |  |
Nonaccruing | Consumer Portfolio Segment | Consumer Auto Loan | Financial Asset Acquired and No Credit Deterioration |  |  |
Financing Receivable, Modifications [Line Items] |  |  |
Nonaccruing | 455 | 696 |
Nonaccruing | Consumer Portfolio Segment | Mortgage |  |  |
Financing Receivable, Modifications [Line Items] |  |  |
Nonaccruing |  | 19,380 | 16,048
Nonaccruing | Consumer Portfolio Segment | Mortgage | Financial Asset Acquired and No Credit Deterioration |  |  |
Financing Receivable, Modifications [Line Items] |  |  |
Nonaccruing | 12,262 |  |
Nonaccruing | Consumer Portfolio Segment | Revolving mortgage |  |  |
Financing Receivable, Modifications [Line Items] |  |  |
Nonaccruing |  | 7,128 | 7,367
Nonaccruing | Consumer Portfolio Segment | Revolving mortgage | Financial Asset Acquired and No Credit Deterioration |  |  |
Financing Receivable, Modifications [Line Items] |  |  |
Nonaccruing | 6,395 |  |
Nonaccruing | Consumer Portfolio Segment | Consumer and Other |  |  |
Financing Receivable, Modifications [Line Items] |  |  |
Nonaccruing |  |  | $ 688
Nonaccruing | Consumer Portfolio Segment | Consumer and Other | Financial Asset Acquired and No Credit Deterioration |  |  |
Financing Receivable, Modifications [Line Items] |  |  |
Nonaccruing | $ 76 | $ 137 |

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 Amount of financing receivable modified as troubled debt restructuring. + 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 http://asc.fasb.org/extlink&oid=123577603&loc=SL6953676-111524 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 40 -Section 50 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=121585226&loc=d3e18845-111554 + Details
Name: | us-gaap_FinancingReceivableModificationsRecordedInvestment
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=123577603&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=124255953&loc=SL82919258-210447 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Publisher SEC -Name Regulation S-K (SK) -Number 229 -Section 1405 -Paragraph (a) -Subparagraph (3) Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Publisher SEC -Name Regulation S-K (SK) -Number 229 -Section 1405 -Paragraph (a) -Subparagraph (2) + Details
Name: | us-gaap_FinancingReceivableRecordedInvestmentNonaccrualStatus
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

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

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

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

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

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

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

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

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

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

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

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

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

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

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

X
- Details
Name: | us-gaap_FinancialInstrumentPerformanceStatusAxis=us-gaap_PerformingFinancingReceivableMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancialInstrumentPerformanceStatusAxis=us-gaap_NonperformingFinancingReceivableMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |