XML 67 R47.htm IDEA: XBRL DOCUMENT
v3.25.1

Loans - Schedule of Collateral Dependent Loans, Individually Evaluated for Allowance for Credit Loss (Details) - USD ($) $ in Thousands | Mar. 31, 2025 | Dec. 31, 2024 | Mar. 31, 2024 | Dec. 31, 2023
--- | --- | --- | --- | ---
Financing Receivable, Allowance for Credit Loss [Line Items] |  |  |  |
Total | $ 6,484,008 | $ 6,376,357 |  |
Total Collateral Dependent Loans, Related Allowance | 91,790 | 88,221 | $ 79,829 | $ 80,398
Commercial and industrial |  |  |  |
Financing Receivable, Allowance for Credit Loss [Line Items] |  |  |  |
Total | 2,635,028 | 2,497,772 |  |
Total Collateral Dependent Loans, Related Allowance | 42,671 | 37,912 | 28,270 | 29,523
Commercial real estate |  |  |  |
Financing Receivable, Allowance for Credit Loss [Line Items] |  |  |  |
Total | 1,884,381 | 1,912,666 |  |
Total Collateral Dependent Loans, Related Allowance | 26,684 | 28,323 | 29,333 | 27,546
Commercial real estate | Non-owner occupied |  |  |  |
Financing Receivable, Allowance for Credit Loss [Line Items] |  |  |  |
Total | 733,949 | 752,861 |  |
Commercial real estate | Owner occupied |  |  |  |
Financing Receivable, Allowance for Credit Loss [Line Items] |  |  |  |
Total | 679,137 | 702,773 |  |
Commercial real estate | Multifamily |  |  |  |
Financing Receivable, Allowance for Credit Loss [Line Items] |  |  |  |
Total | 85,239 | 94,355 |  |
Commercial real estate | Construction and land |  |  |  |
Financing Receivable, Allowance for Credit Loss [Line Items] |  |  |  |
Total | 386,056 | 362,677 |  |
Residential real estate |  |  |  |
Financing Receivable, Allowance for Credit Loss [Line Items] |  |  |  |
Total | 1,195,714 | 1,180,610 |  |
Total Collateral Dependent Loans, Related Allowance | 15,211 | 15,450 | 14,989 | 16,345
Public finance |  |  |  |
Financing Receivable, Allowance for Credit Loss [Line Items] |  |  |  |
Total | 551,252 | 554,784 |  |
Total Collateral Dependent Loans, Related Allowance | 5,243 | 4,750 | 5,778 | 5,337
Consumer |  |  |  |
Financing Receivable, Allowance for Credit Loss [Line Items] |  |  |  |
Total | 39,096 | 41,345 |  |
Total Collateral Dependent Loans, Related Allowance | 718 | 750 | 624 | 717
Other |  |  |  |
Financing Receivable, Allowance for Credit Loss [Line Items] |  |  |  |
Total | 178,537 | 189,180 |  |
Total Collateral Dependent Loans, Related Allowance | 1,263 | 1,036 | $ 835 | $ 930
Collateral Pledged |  |  |  |
Financing Receivable, Allowance for Credit Loss [Line Items] |  |  |  |
Collateral Dependent Loans with Allowance, Amortized Allowance | 48,596 | 31,980 |  |
Collateral Dependent Loans with Allowance, Related Allowance | 19,416 | 10,297 |  |
Collateral Dependent Loans with No Related Allowance, Amortized Cost | 29,979 | 35,537 |  |
Total | 78,575 | 67,517 |  |
Total Collateral Dependent Loans, Related Allowance | 19,416 | 10,297 |  |
Collateral Pledged | Commercial and industrial |  |  |  |
Financing Receivable, Allowance for Credit Loss [Line Items] |  |  |  |
Collateral Dependent Loans with Allowance, Amortized Allowance | 33,513 | 20,890 |  |
Collateral Dependent Loans with Allowance, Related Allowance | 17,486 | 8,460 |  |
Collateral Dependent Loans with No Related Allowance, Amortized Cost | 7,323 | 7,424 |  |
Total | 40,836 | 28,314 |  |
Total Collateral Dependent Loans, Related Allowance | 17,486 | 8,460 |  |
Collateral Pledged | Commercial real estate |  |  |  |
Financing Receivable, Allowance for Credit Loss [Line Items] |  |  |  |
Collateral Dependent Loans with Allowance, Amortized Allowance | 3,647 | 0 |  |
Collateral Dependent Loans with Allowance, Related Allowance | 132 | 0 |  |
Collateral Dependent Loans with No Related Allowance, Amortized Cost | 5,568 | 9,302 |  |
Total | 9,215 | 9,302 |  |
Total Collateral Dependent Loans, Related Allowance | 132 | 0 |  |
Collateral Pledged | Commercial real estate | Non-owner occupied |  |  |  |
Financing Receivable, Allowance for Credit Loss [Line Items] |  |  |  |
Collateral Dependent Loans with Allowance, Amortized Allowance | 3,647 | 0 |  |
Collateral Dependent Loans with Allowance, Related Allowance | 132 | 0 |  |
Collateral Dependent Loans with No Related Allowance, Amortized Cost | 668 | 4,350 |  |
Total | 4,315 | 4,350 |  |
Total Collateral Dependent Loans, Related Allowance | 132 | 0 |  |
Collateral Pledged | Commercial real estate | Owner occupied |  |  |  |
Financing Receivable, Allowance for Credit Loss [Line Items] |  |  |  |
Collateral Dependent Loans with Allowance, Amortized Allowance | 0 | 0 |  |
Collateral Dependent Loans with Allowance, Related Allowance | 0 | 0 |  |
Collateral Dependent Loans with No Related Allowance, Amortized Cost | 3,246 | 3,278 |  |
Total | 3,246 | 3,278 |  |
Total Collateral Dependent Loans, Related Allowance | 0 | 0 |  |
Collateral Pledged | Commercial real estate | Multifamily |  |  |  |
Financing Receivable, Allowance for Credit Loss [Line Items] |  |  |  |
Collateral Dependent Loans with Allowance, Amortized Allowance | 0 |  |  |
Collateral Dependent Loans with Allowance, Related Allowance | 0 |  |  |
Collateral Dependent Loans with No Related Allowance, Amortized Cost | 1,654 |  |  |
Total | 1,654 |  |  |
Total Collateral Dependent Loans, Related Allowance | 0 |  |  |
Collateral Pledged | Commercial real estate | Construction and land |  |  |  |
Financing Receivable, Allowance for Credit Loss [Line Items] |  |  |  |
Collateral Dependent Loans with Allowance, Amortized Allowance |  | 0 |  |
Collateral Dependent Loans with Allowance, Related Allowance |  | 0 |  |
Collateral Dependent Loans with No Related Allowance, Amortized Cost |  | 0 |  |
Total |  | 0 |  |
Total Collateral Dependent Loans, Related Allowance |  | 0 |  |
Collateral Pledged | Residential real estate |  |  |  |
Financing Receivable, Allowance for Credit Loss [Line Items] |  |  |  |
Collateral Dependent Loans with Allowance, Amortized Allowance | 1,806 | 1,409 |  |
Collateral Dependent Loans with Allowance, Related Allowance | 166 | 154 |  |
Collateral Dependent Loans with No Related Allowance, Amortized Cost | 17,085 | 18,811 |  |
Total | 18,891 | 20,220 |  |
Total Collateral Dependent Loans, Related Allowance | 166 | 154 |  |
Collateral Pledged | Public finance |  |  |  |
Financing Receivable, Allowance for Credit Loss [Line Items] |  |  |  |
Collateral Dependent Loans with Allowance, Amortized Allowance | 7,226 |  |  |
Collateral Dependent Loans with Allowance, Related Allowance | 1,460 |  |  |
Collateral Dependent Loans with No Related Allowance, Amortized Cost | 0 |  |  |
Total | 7,226 |  |  |
Total Collateral Dependent Loans, Related Allowance | 1,460 |  |  |
Collateral Pledged | Consumer |  |  |  |
Financing Receivable, Allowance for Credit Loss [Line Items] |  |  |  |
Collateral Dependent Loans with Allowance, Amortized Allowance | 13 | 64 |  |
Collateral Dependent Loans with Allowance, Related Allowance | 13 | 64 |  |
Collateral Dependent Loans with No Related Allowance, Amortized Cost | 3 | 0 |  |
Total | 16 | 64 |  |
Total Collateral Dependent Loans, Related Allowance | 13 | 64 |  |
Collateral Pledged | Other |  |  |  |
Financing Receivable, Allowance for Credit Loss [Line Items] |  |  |  |
Collateral Dependent Loans with Allowance, Amortized Allowance | 2,391 | 2,391 |  |
Collateral Dependent Loans with Allowance, Related Allowance | 159 | 159 |  |
Collateral Dependent Loans with No Related Allowance, Amortized Cost | 0 | 0 |  |
Total | 2,391 | 2,391 |  |
Total Collateral Dependent Loans, Related Allowance | $ 159 | $ 159 |  |

X
- Definition Financing Receivable, With No Related Allowance, Amortized Cost + References No definition available. + Details
Name: | fcb_FinancingReceivableWithNoRelatedAllowanceAmortizedCost
Namespace Prefix: | fcb_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Financing Receivable, With Related Allowance, Amortized Cost + References No definition available. + Details
Name: | fcb_FinancingReceivableWithRelatedAllowanceAmortizedCost
Namespace Prefix: | fcb_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Financing Receivable, With Related Allowance, Related Allowance + References No definition available. + Details
Name: | fcb_FinancingReceivableWithRelatedAllowanceRelatedAllowance
Namespace Prefix: | fcb_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Amount excluding accrued interest, of allowance for credit loss on financing receivable. Excludes net investment in lease. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 45 -Paragraph 1 -Publisher FASB -URI https://asc.fasb.org/1943274/2147479344/326-20-45-1 + Details
Name: | us-gaap_FinancingReceivableAllowanceForCreditLossExcludingAccruedInterest
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
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 Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name Regulation S-K (SK) -Number 229 -Section 1405 -Paragraph c -Publisher SEC Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 13 -Publisher FASB -URI https://asc.fasb.org/1943274/2147479319/326-20-50-13 + Details
Name: | us-gaap_FinancingReceivableAllowanceForCreditLossesLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Amortized cost excluding accrued interest, before allowance for credit loss, of financing receivable. Excludes net investment in lease. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 45 -Paragraph 1 -Publisher FASB -URI https://asc.fasb.org/1943274/2147479344/326-20-45-1 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 3B -Publisher FASB -URI https://asc.fasb.org/1943274/2147479319/326-20-50-3B Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 5 -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org/1943274/2147479319/326-20-50-5 + Details
Name: | us-gaap_FinancingReceivableExcludingAccruedInterestBeforeAllowanceForCreditLoss
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

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

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

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

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

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

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

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

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

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

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

X
- Details
Name: | us-gaap_CollateralAxis=us-gaap_CollateralPledgedMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |