XML 97 R76.htm IDEA: XBRL DOCUMENT
v3.22.4

Loans Receivable and Allowance for Credit Losses - Aging Analysis on Loans Held-for-Investment (Details) - USD ($) $ in Thousands | Dec. 31, 2022 | Dec. 31, 2021
--- | --- | ---
Nonaccrual and Past Due Loans |  |
Total Nonaccrual Loans | $ 99,526 | $ 93,181
Loans held-for-investment | 48,202,430 | 41,693,781
Commercial Lending |  |
Nonaccrual and Past Due Loans |  |
Total Nonaccrual Loans | 73,841 | 68,965
Loans held-for-investment | 34,780,453 | 30,327,746
Commercial Lending | C&I |  |
Nonaccrual and Past Due Loans |  |
Total Nonaccrual Loans | 50,428 | 59,023
Loans held-for-investment | 15,711,095 | 14,150,608
Commercial Lending | CRE |  |
Nonaccrual and Past Due Loans |  |
Total Nonaccrual Loans | 23,244 | 9,498
Loans held-for-investment | 13,857,870 | 12,155,047
Commercial Lending | Residential loan | Multifamily |  |
Nonaccrual and Past Due Loans |  |
Total Nonaccrual Loans | 169 | 444
Loans held-for-investment | 4,573,068 | 3,675,605
Commercial Lending | Construction and land |  |
Nonaccrual and Past Due Loans |  |
Total Nonaccrual Loans | 0 | 0
Loans held-for-investment | 638,420 | 346,486
Commercial Lending | Total CRE |  |
Nonaccrual and Past Due Loans |  |
Total Nonaccrual Loans | 23,413 | 9,942
Loans held-for-investment | 19,069,358 | 16,177,138
Consumer Lending |  |
Nonaccrual and Past Due Loans |  |
Total Nonaccrual Loans | 25,685 | 24,216
Loans held-for-investment | 13,421,977 | 11,366,035
Consumer Lending | Residential loan | Single-family |  |
Nonaccrual and Past Due Loans |  |
Total Nonaccrual Loans | 14,240 | 15,720
Loans held-for-investment | 11,223,027 | 9,093,702
Consumer Lending | HELOCs |  |
Nonaccrual and Past Due Loans |  |
Total Nonaccrual Loans | 11,346 | 8,444
Loans held-for-investment | 2,122,655 | 2,144,821
Consumer Lending | Total residential mortgage |  |
Nonaccrual and Past Due Loans |  |
Total Nonaccrual Loans | 25,586 | 24,164
Loans held-for-investment | 13,345,682 | 11,238,523
Consumer Lending | Other consumer |  |
Nonaccrual and Past Due Loans |  |
Total Nonaccrual Loans | 99 | 52
Loans held-for-investment | 76,295 | 127,512
Current Accruing Loans |  |
Nonaccrual and Past Due Loans |  |
Loans held-for-investment | 48,040,733 | 41,555,745
Current Accruing Loans | Commercial Lending |  |
Nonaccrual and Past Due Loans |  |
Loans held-for-investment | 34,682,072 | 30,238,648
Current Accruing Loans | Commercial Lending | C&I |  |
Nonaccrual and Past Due Loans |  |
Loans held-for-investment | 15,651,312 | 14,080,516
Current Accruing Loans | Commercial Lending | CRE |  |
Nonaccrual and Past Due Loans |  |
Loans held-for-investment | 13,820,441 | 12,141,827
Current Accruing Loans | Commercial Lending | Residential loan | Multifamily |  |
Nonaccrual and Past Due Loans |  |
Loans held-for-investment | 4,571,899 | 3,669,819
Current Accruing Loans | Commercial Lending | Construction and land |  |
Nonaccrual and Past Due Loans |  |
Loans held-for-investment | 638,420 | 346,486
Current Accruing Loans | Commercial Lending | Total CRE |  |
Nonaccrual and Past Due Loans |  |
Loans held-for-investment | 19,030,760 | 16,158,132
Current Accruing Loans | Consumer Lending |  |
Nonaccrual and Past Due Loans |  |
Loans held-for-investment | 13,358,661 | 11,317,097
Current Accruing Loans | Consumer Lending | Residential loan | Single-family |  |
Nonaccrual and Past Due Loans |  |
Loans held-for-investment | 11,183,134 | 9,059,222
Current Accruing Loans | Consumer Lending | HELOCs |  |
Nonaccrual and Past Due Loans |  |
Loans held-for-investment | 2,102,523 | 2,130,523
Current Accruing Loans | Consumer Lending | Total residential mortgage |  |
Nonaccrual and Past Due Loans |  |
Loans held-for-investment | 13,285,657 | 11,189,745
Current Accruing Loans | Consumer Lending | Other consumer |  |
Nonaccrual and Past Due Loans |  |
Loans held-for-investment | 73,004 | 127,352
Accruing Loans 30-59 Days Past Due |  |
Nonaccrual and Past Due Loans |  |
Loans held-for-investment | 42,677 | 31,091
Accruing Loans 30-59 Days Past Due | Commercial Lending |  |
Nonaccrual and Past Due Loans |  |
Loans held-for-investment | 21,345 | 16,025
Accruing Loans 30-59 Days Past Due | Commercial Lending | C&I |  |
Nonaccrual and Past Due Loans |  |
Loans held-for-investment | 6,482 | 6,983
Accruing Loans 30-59 Days Past Due | Commercial Lending | CRE |  |
Nonaccrual and Past Due Loans |  |
Loans held-for-investment | 14,185 | 3,722
Accruing Loans 30-59 Days Past Due | Commercial Lending | Residential loan | Multifamily |  |
Nonaccrual and Past Due Loans |  |
Loans held-for-investment | 678 | 5,320
Accruing Loans 30-59 Days Past Due | Commercial Lending | Construction and land |  |
Nonaccrual and Past Due Loans |  |
Loans held-for-investment | 0 | 0
Accruing Loans 30-59 Days Past Due | Commercial Lending | Total CRE |  |
Nonaccrual and Past Due Loans |  |
Loans held-for-investment | 14,863 | 9,042
Accruing Loans 30-59 Days Past Due | Consumer Lending |  |
Nonaccrual and Past Due Loans |  |
Loans held-for-investment | 21,332 | 15,066
Accruing Loans 30-59 Days Past Due | Consumer Lending | Residential loan | Single-family |  |
Nonaccrual and Past Due Loans |  |
Loans held-for-investment | 13,523 | 10,191
Accruing Loans 30-59 Days Past Due | Consumer Lending | HELOCs |  |
Nonaccrual and Past Due Loans |  |
Loans held-for-investment | 7,700 | 4,776
Accruing Loans 30-59 Days Past Due | Consumer Lending | Total residential mortgage |  |
Nonaccrual and Past Due Loans |  |
Loans held-for-investment | 21,223 | 14,967
Accruing Loans 30-59 Days Past Due | Consumer Lending | Other consumer |  |
Nonaccrual and Past Due Loans |  |
Loans held-for-investment | 109 | 99
Accruing Loans 60-89 Days Past Due |  |
Nonaccrual and Past Due Loans |  |
Loans held-for-investment | 19,494 | 13,764
Accruing Loans 60-89 Days Past Due | Commercial Lending |  |
Nonaccrual and Past Due Loans |  |
Loans held-for-investment | 3,195 | 4,108
Accruing Loans 60-89 Days Past Due | Commercial Lending | C&I |  |
Nonaccrual and Past Due Loans |  |
Loans held-for-investment | 2,873 | 4,086
Accruing Loans 60-89 Days Past Due | Commercial Lending | CRE |  |
Nonaccrual and Past Due Loans |  |
Loans held-for-investment | 0 | 0
Accruing Loans 60-89 Days Past Due | Commercial Lending | Residential loan | Multifamily |  |
Nonaccrual and Past Due Loans |  |
Loans held-for-investment | 322 | 22
Accruing Loans 60-89 Days Past Due | Commercial Lending | Construction and land |  |
Nonaccrual and Past Due Loans |  |
Loans held-for-investment | 0 | 0
Accruing Loans 60-89 Days Past Due | Commercial Lending | Total CRE |  |
Nonaccrual and Past Due Loans |  |
Loans held-for-investment | 322 | 22
Accruing Loans 60-89 Days Past Due | Consumer Lending |  |
Nonaccrual and Past Due Loans |  |
Loans held-for-investment | 16,299 | 9,656
Accruing Loans 60-89 Days Past Due | Consumer Lending | Residential loan | Single-family |  |
Nonaccrual and Past Due Loans |  |
Loans held-for-investment | 12,130 | 8,569
Accruing Loans 60-89 Days Past Due | Consumer Lending | HELOCs |  |
Nonaccrual and Past Due Loans |  |
Loans held-for-investment | 1,086 | 1,078
Accruing Loans 60-89 Days Past Due | Consumer Lending | Total residential mortgage |  |
Nonaccrual and Past Due Loans |  |
Loans held-for-investment | 13,216 | 9,647
Accruing Loans 60-89 Days Past Due | Consumer Lending | Other consumer |  |
Nonaccrual and Past Due Loans |  |
Loans held-for-investment | 3,083 | 9
Total Accruing Past Due Loans |  |
Nonaccrual and Past Due Loans |  |
Loans held-for-investment | 62,171 | 44,855
Total Accruing Past Due Loans | Commercial Lending |  |
Nonaccrual and Past Due Loans |  |
Loans held-for-investment | 24,540 | 20,133
Total Accruing Past Due Loans | Commercial Lending | C&I |  |
Nonaccrual and Past Due Loans |  |
Loans held-for-investment | 9,355 | 11,069
Total Accruing Past Due Loans | Commercial Lending | CRE |  |
Nonaccrual and Past Due Loans |  |
Loans held-for-investment | 14,185 | 3,722
Total Accruing Past Due Loans | Commercial Lending | Residential loan | Multifamily |  |
Nonaccrual and Past Due Loans |  |
Loans held-for-investment | 1,000 | 5,342
Total Accruing Past Due Loans | Commercial Lending | Construction and land |  |
Nonaccrual and Past Due Loans |  |
Loans held-for-investment | 0 | 0
Total Accruing Past Due Loans | Commercial Lending | Total CRE |  |
Nonaccrual and Past Due Loans |  |
Loans held-for-investment | 15,185 | 9,064
Total Accruing Past Due Loans | Consumer Lending |  |
Nonaccrual and Past Due Loans |  |
Loans held-for-investment | 37,631 | 24,722
Total Accruing Past Due Loans | Consumer Lending | Residential loan | Single-family |  |
Nonaccrual and Past Due Loans |  |
Loans held-for-investment | 25,653 | 18,760
Total Accruing Past Due Loans | Consumer Lending | HELOCs |  |
Nonaccrual and Past Due Loans |  |
Loans held-for-investment | 8,786 | 5,854
Total Accruing Past Due Loans | Consumer Lending | Total residential mortgage |  |
Nonaccrual and Past Due Loans |  |
Loans held-for-investment | 34,439 | 24,614
Total Accruing Past Due Loans | Consumer Lending | Other consumer |  |
Nonaccrual and Past Due Loans |  |
Loans held-for-investment | $ 3,192 | $ 108

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/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 20 -Section 50 -Paragraph 5 -Subparagraph (b) -URI https://asc.fasb.org/extlink&oid=124255953&loc=SL82919230-210447 Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 20 -Section 45 -Paragraph 1 -URI https://asc.fasb.org/extlink&oid=124255206&loc=SL82895884-210446 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 20 -Section 50 -Paragraph 3B -URI https://asc.fasb.org/extlink&oid=124255953&loc=SL120267963-210447 + Details
Name: | us-gaap_FinancingReceivableExcludingAccruedInterestBeforeAllowanceForCreditLoss
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Amortized cost of financing receivable on nonaccrual status. Excludes net investment in lease. + 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 https://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 https://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
- 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
- Details
Name: | us-gaap_FinancingReceivablePortfolioSegmentAxis=us-gaap_CommercialPortfolioSegmentMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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

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

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

X
- Details
Name: | srt_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis=srt_MultifamilyMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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

X
- Details
Name: | us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis=ewbc_TotalCommercialRealEstateMember
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: | srt_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis=srt_SingleFamilyMember
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=ewbc_TotalResidentialMortgageMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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

X
- Details
Name: | us-gaap_FinancingReceivablesPeriodPastDueAxis=us-gaap_FinancingReceivables1To29DaysPastDueMember
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: |

X
- Details
Name: | us-gaap_FinancingReceivablesPeriodPastDueAxis=ewbc_EwbcFinancingReceivablesTotal30To90DaysPastDueMemberMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |