XML 52 R71.htm IDEA: XBRL DOCUMENT v2.4.1.9
Allowance for Loan and Lease Losses (Troubled Debt Restructuring) (Details) (USD $)
 12 Months Ended
Dec. 31, 2014
loans
Dec. 31, 2013
loans
Financing Receivable, Modifications [Line Items]    
Accruing $ 135,963,000fcnca_FinancingReceivableRecordedInvestmentStillAccruing $ 175,955,000fcnca_FinancingReceivableRecordedInvestmentStillAccruing
Nonaccruing 15,516,000us-gaap_FinancingReceivableRecordedInvestmentNonaccrualStatus 30,801,000us-gaap_FinancingReceivableRecordedInvestmentNonaccrualStatus
Financing Receivable, Modifications, Recorded Investment 151,479,000us-gaap_FinancingReceivableModificationsRecordedInvestment 206,756,000us-gaap_FinancingReceivableModificationsRecordedInvestment
Impaired Loans and Leases, Baseline for Meaurement 500,000fcnca_ImpairedLoansAndLeasesBaselineForMeaurement  
Non-PCI Loans    
Financing Receivable, Modifications [Line Items]    
Financing Receivable, Modifications, Number of Contracts 248us-gaap_FinancingReceivableModificationsNumberOfContracts2
/ fcnca_LoanDesignationAxis
= fcnca_NonPCILoansMember		 148us-gaap_FinancingReceivableModificationsNumberOfContracts2
/ fcnca_LoanDesignationAxis
= fcnca_NonPCILoansMember
Nonaccruing 44,005,000us-gaap_FinancingReceivableRecordedInvestmentNonaccrualStatus
/ fcnca_LoanDesignationAxis
= fcnca_NonPCILoansMember		 53,170,000us-gaap_FinancingReceivableRecordedInvestmentNonaccrualStatus
/ fcnca_LoanDesignationAxis
= fcnca_NonPCILoansMember
Financing Receivable, Modifications, Recorded Investment 104,607,000us-gaap_FinancingReceivableModificationsRecordedInvestment
/ fcnca_LoanDesignationAxis
= fcnca_NonPCILoansMember		 104,448,000us-gaap_FinancingReceivableModificationsRecordedInvestment
/ fcnca_LoanDesignationAxis
= fcnca_NonPCILoansMember
Commercial    
Financing Receivable, Modifications [Line Items]    
Accruing 107,305,000fcnca_FinancingReceivableRecordedInvestmentStillAccruing
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= us-gaap_CommercialPortfolioSegmentMember		 147,712,000fcnca_FinancingReceivableRecordedInvestmentStillAccruing
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= us-gaap_CommercialPortfolioSegmentMember
Nonaccruing 10,861,000us-gaap_FinancingReceivableRecordedInvestmentNonaccrualStatus
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= us-gaap_CommercialPortfolioSegmentMember		 26,681,000us-gaap_FinancingReceivableRecordedInvestmentNonaccrualStatus
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= us-gaap_CommercialPortfolioSegmentMember
Financing Receivable, Modifications, Recorded Investment 118,166,000us-gaap_FinancingReceivableModificationsRecordedInvestment
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= us-gaap_CommercialPortfolioSegmentMember		 174,393,000us-gaap_FinancingReceivableModificationsRecordedInvestment
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= us-gaap_CommercialPortfolioSegmentMember
Commercial | Construction and land development    
Financing Receivable, Modifications [Line Items]    
Accruing 2,591,000fcnca_FinancingReceivableRecordedInvestmentStillAccruing
/ us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis
= us-gaap_CommercialRealEstateConstructionFinancingReceivableMember
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= us-gaap_CommercialPortfolioSegmentMember		 21,032,000fcnca_FinancingReceivableRecordedInvestmentStillAccruing
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= us-gaap_CommercialRealEstateConstructionFinancingReceivableMember
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= us-gaap_CommercialPortfolioSegmentMember
Nonaccruing 446,000us-gaap_FinancingReceivableRecordedInvestmentNonaccrualStatus
/ us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis
= us-gaap_CommercialRealEstateConstructionFinancingReceivableMember
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= us-gaap_CommercialPortfolioSegmentMember		 1,002,000us-gaap_FinancingReceivableRecordedInvestmentNonaccrualStatus
/ us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis
= us-gaap_CommercialRealEstateConstructionFinancingReceivableMember
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= us-gaap_CommercialPortfolioSegmentMember
Financing Receivable, Modifications, Recorded Investment 3,037,000us-gaap_FinancingReceivableModificationsRecordedInvestment
/ us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis
= us-gaap_CommercialRealEstateConstructionFinancingReceivableMember
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= us-gaap_CommercialPortfolioSegmentMember		 22,034,000us-gaap_FinancingReceivableModificationsRecordedInvestment
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= us-gaap_CommercialRealEstateConstructionFinancingReceivableMember
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= us-gaap_CommercialPortfolioSegmentMember
Commercial | Construction and land development | Non-PCI Loans    
Financing Receivable, Modifications [Line Items]    
Nonaccruing 343,000us-gaap_FinancingReceivableRecordedInvestmentNonaccrualStatus
/ us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis
= us-gaap_CommercialRealEstateConstructionFinancingReceivableMember
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= us-gaap_CommercialPortfolioSegmentMember
/ fcnca_LoanDesignationAxis
= fcnca_NonPCILoansMember		 544,000us-gaap_FinancingReceivableRecordedInvestmentNonaccrualStatus
/ us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis
= us-gaap_CommercialRealEstateConstructionFinancingReceivableMember
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= us-gaap_CommercialPortfolioSegmentMember
/ fcnca_LoanDesignationAxis
= fcnca_NonPCILoansMember
Commercial | Mortgage    
Financing Receivable, Modifications [Line Items]    
Accruing 92,184,000fcnca_FinancingReceivableRecordedInvestmentStillAccruing
/ us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis
= us-gaap_MortgageReceivablesMember
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= us-gaap_CommercialPortfolioSegmentMember		 113,323,000fcnca_FinancingReceivableRecordedInvestmentStillAccruing
/ us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis
= us-gaap_MortgageReceivablesMember
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= us-gaap_CommercialPortfolioSegmentMember
Nonaccruing 8,937,000us-gaap_FinancingReceivableRecordedInvestmentNonaccrualStatus
/ us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis
= us-gaap_MortgageReceivablesMember
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= us-gaap_CommercialPortfolioSegmentMember		 23,387,000us-gaap_FinancingReceivableRecordedInvestmentNonaccrualStatus
/ us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis
= us-gaap_MortgageReceivablesMember
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= us-gaap_CommercialPortfolioSegmentMember
Financing Receivable, Modifications, Recorded Investment 101,121,000us-gaap_FinancingReceivableModificationsRecordedInvestment
/ us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis
= us-gaap_MortgageReceivablesMember
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= us-gaap_CommercialPortfolioSegmentMember		 136,710,000us-gaap_FinancingReceivableModificationsRecordedInvestment
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= us-gaap_MortgageReceivablesMember
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= us-gaap_CommercialPortfolioSegmentMember
Commercial | Mortgage | Non-PCI Loans    
Financing Receivable, Modifications [Line Items]    
Nonaccruing 24,720,000us-gaap_FinancingReceivableRecordedInvestmentNonaccrualStatus
/ us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis
= us-gaap_MortgageReceivablesMember
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= us-gaap_CommercialPortfolioSegmentMember
/ fcnca_LoanDesignationAxis
= fcnca_NonPCILoansMember		 33,529,000us-gaap_FinancingReceivableRecordedInvestmentNonaccrualStatus
/ us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis
= us-gaap_MortgageReceivablesMember
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= us-gaap_CommercialPortfolioSegmentMember
/ fcnca_LoanDesignationAxis
= fcnca_NonPCILoansMember
Commercial | Other commercial real estate    
Financing Receivable, Modifications [Line Items]    
Accruing 2,374,000fcnca_FinancingReceivableRecordedInvestmentStillAccruing
/ us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis
= us-gaap_CommercialRealEstateOtherReceivableMember
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= us-gaap_CommercialPortfolioSegmentMember		 3,470,000fcnca_FinancingReceivableRecordedInvestmentStillAccruing
/ us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis
= us-gaap_CommercialRealEstateOtherReceivableMember
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= us-gaap_CommercialPortfolioSegmentMember
Nonaccruing 449,000us-gaap_FinancingReceivableRecordedInvestmentNonaccrualStatus
/ us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis
= us-gaap_CommercialRealEstateOtherReceivableMember
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= us-gaap_CommercialPortfolioSegmentMember		 1,150,000us-gaap_FinancingReceivableRecordedInvestmentNonaccrualStatus
/ us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis
= us-gaap_CommercialRealEstateOtherReceivableMember
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= us-gaap_CommercialPortfolioSegmentMember
Financing Receivable, Modifications, Recorded Investment 2,823,000us-gaap_FinancingReceivableModificationsRecordedInvestment
/ us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis
= us-gaap_CommercialRealEstateOtherReceivableMember
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= us-gaap_CommercialPortfolioSegmentMember		 4,620,000us-gaap_FinancingReceivableModificationsRecordedInvestment
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= us-gaap_CommercialRealEstateOtherReceivableMember
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= us-gaap_CommercialPortfolioSegmentMember
Commercial | Other commercial real estate | Non-PCI Loans    
Financing Receivable, Modifications [Line Items]    
Nonaccruing 619,000us-gaap_FinancingReceivableRecordedInvestmentNonaccrualStatus
/ us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis
= us-gaap_CommercialRealEstateOtherReceivableMember
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= us-gaap_CommercialPortfolioSegmentMember
/ fcnca_LoanDesignationAxis
= fcnca_NonPCILoansMember		 1,610,000us-gaap_FinancingReceivableRecordedInvestmentNonaccrualStatus
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/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= us-gaap_CommercialPortfolioSegmentMember
/ fcnca_LoanDesignationAxis
= fcnca_NonPCILoansMember
Commercial | Commercial and industrial    
Financing Receivable, Modifications [Line Items]    
Accruing 9,864,000fcnca_FinancingReceivableRecordedInvestmentStillAccruing
/ us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis
= fcnca_CommercialAndIndustrialMember
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= us-gaap_CommercialPortfolioSegmentMember		 9,838,000fcnca_FinancingReceivableRecordedInvestmentStillAccruing
/ us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis
= fcnca_CommercialAndIndustrialMember
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= us-gaap_CommercialPortfolioSegmentMember
Nonaccruing 664,000us-gaap_FinancingReceivableRecordedInvestmentNonaccrualStatus
/ us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis
= fcnca_CommercialAndIndustrialMember
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= us-gaap_CommercialPortfolioSegmentMember		 1,142,000us-gaap_FinancingReceivableRecordedInvestmentNonaccrualStatus
/ us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis
= fcnca_CommercialAndIndustrialMember
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= us-gaap_CommercialPortfolioSegmentMember
Financing Receivable, Modifications, Recorded Investment 10,528,000us-gaap_FinancingReceivableModificationsRecordedInvestment
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= fcnca_CommercialAndIndustrialMember
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= us-gaap_CommercialPortfolioSegmentMember		 10,980,000us-gaap_FinancingReceivableModificationsRecordedInvestment
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= fcnca_CommercialAndIndustrialMember
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= us-gaap_CommercialPortfolioSegmentMember
Commercial | Commercial and industrial | Non-PCI Loans    
Financing Receivable, Modifications [Line Items]    
Nonaccruing 1,741,000us-gaap_FinancingReceivableRecordedInvestmentNonaccrualStatus
/ us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis
= fcnca_CommercialAndIndustrialMember
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
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/ fcnca_LoanDesignationAxis
= fcnca_NonPCILoansMember		 1,428,000us-gaap_FinancingReceivableRecordedInvestmentNonaccrualStatus
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= fcnca_CommercialAndIndustrialMember
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= us-gaap_CommercialPortfolioSegmentMember
/ fcnca_LoanDesignationAxis
= fcnca_NonPCILoansMember
Commercial | Lease financing    
Financing Receivable, Modifications [Line Items]    
Accruing 258,000fcnca_FinancingReceivableRecordedInvestmentStillAccruing
/ us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis
= us-gaap_FinanceLeasesFinancingReceivableMember
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= us-gaap_CommercialPortfolioSegmentMember		 49,000fcnca_FinancingReceivableRecordedInvestmentStillAccruing
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/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
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Nonaccruing 365,000us-gaap_FinancingReceivableRecordedInvestmentNonaccrualStatus
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= us-gaap_FinanceLeasesFinancingReceivableMember
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= us-gaap_CommercialPortfolioSegmentMember		 0us-gaap_FinancingReceivableRecordedInvestmentNonaccrualStatus
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/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
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Financing Receivable, Modifications, Recorded Investment 623,000us-gaap_FinancingReceivableModificationsRecordedInvestment
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/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
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= us-gaap_CommercialPortfolioSegmentMember
Commercial | Lease financing | Non-PCI Loans    
Financing Receivable, Modifications [Line Items]    
Nonaccruing 374,000us-gaap_FinancingReceivableRecordedInvestmentNonaccrualStatus
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= fcnca_NonPCILoansMember		 832,000us-gaap_FinancingReceivableRecordedInvestmentNonaccrualStatus
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/ fcnca_LoanDesignationAxis
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Commercial | Other    
Financing Receivable, Modifications [Line Items]    
Accruing 34,000fcnca_FinancingReceivableRecordedInvestmentStillAccruing
/ us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis
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= us-gaap_CommercialPortfolioSegmentMember		 0fcnca_FinancingReceivableRecordedInvestmentStillAccruing
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Nonaccruing 0us-gaap_FinancingReceivableRecordedInvestmentNonaccrualStatus
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Financing Receivable, Modifications, Recorded Investment 34,000us-gaap_FinancingReceivableModificationsRecordedInvestment
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Noncommercial    
Financing Receivable, Modifications [Line Items]    
Accruing 28,658,000fcnca_FinancingReceivableRecordedInvestmentStillAccruing
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= fcnca_NoncommercialSegmentMember		 28,243,000fcnca_FinancingReceivableRecordedInvestmentStillAccruing
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Nonaccruing 4,655,000us-gaap_FinancingReceivableRecordedInvestmentNonaccrualStatus
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
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Financing Receivable, Modifications, Recorded Investment 33,313,000us-gaap_FinancingReceivableModificationsRecordedInvestment
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Noncommercial | Mortgage    
Financing Receivable, Modifications [Line Items]    
Accruing 22,597,000fcnca_FinancingReceivableRecordedInvestmentStillAccruing
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Nonaccruing 4,655,000us-gaap_FinancingReceivableRecordedInvestmentNonaccrualStatus
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Financing Receivable, Modifications, Recorded Investment 27,252,000us-gaap_FinancingReceivableModificationsRecordedInvestment
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Noncommercial | Mortgage | Non-PCI Loans    
Financing Receivable, Modifications [Line Items]    
Nonaccruing 14,242,000us-gaap_FinancingReceivableRecordedInvestmentNonaccrualStatus
/ us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis
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Noncommercial | Other | Non-PCI Loans    
Financing Receivable, Modifications [Line Items]    
Nonaccruing 1,966,000us-gaap_FinancingReceivableRecordedInvestmentNonaccrualStatus
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Noncommercial | Construction and land development    
Financing Receivable, Modifications [Line Items]    
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Noncommercial | Construction and land development | Non-PCI Loans    
Financing Receivable, Modifications [Line Items]    
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Noncommercial | Revolving mortgage    
Financing Receivable, Modifications [Line Items]    
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Noncommercial | Revolving mortgage | Non-PCI Loans    
Financing Receivable, Modifications [Line Items]    
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Noncommercial | Consumer and Other    
Financing Receivable, Modifications [Line Items]    
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Below Market Interest Rate | Non-PCI Loans    
Financing Receivable, Modifications [Line Items]    
Financing Receivable, Modifications, Number of Contracts 137us-gaap_FinancingReceivableModificationsNumberOfContracts2
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Financing Receivable, Modifications [Line Items]    
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Financing Receivable, Modifications [Line Items]    
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Financing Receivable, Modifications [Line Items]    
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Financing Receivable, Modifications [Line Items]    
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Financing Receivable, Modifications [Line Items]    
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Below Market Interest Rate | Noncommercial | Revolving mortgage | Non-PCI Loans    
Financing Receivable, Modifications [Line Items]    
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