XML 97 R78.htm IDEA: XBRL DOCUMENT
v3.24.1.u1

Loans Receivable and Allowance for Credit Losses - Summary of Activities in Allowance for Loan Losses (Details) - USD ($) $ in Thousands | 3 Months Ended |
--- | --- | ---
Mar. 31, 2024 | Mar. 31, 2023 | Dec. 31, 2022
Allowance for loan losses |  |  |
Allowance for loan losses, start of period | $ 668,743 | $ 595,645 |
(Reversal of) provision for credit losses on loans | 24,155 | 18,520 |
Gross charge-offs | (24,684) | (2,037) |
Gross recoveries | 2,107 | 1,428 |
Total net (charge-offs) recoveries | (22,577) | (609) |
Foreign currency translation adjustment | (41) | 309 |
Allowance for loan losses, end of period | 670,280 | 619,893 |
Commercial lending | Commercial and industrial (“C&I”) |  |  |
Allowance for loan losses |  |  |
Allowance for loan losses, start of period | 392,685 | 371,700 |
(Reversal of) provision for credit losses on loans | 275 | (678) |
Gross charge-offs | (20,998) | (1,900) |
Gross recoveries | 1,710 | 1,211 |
Total net (charge-offs) recoveries | (19,288) | (689) |
Foreign currency translation adjustment | (41) | 309 |
Allowance for loan losses, end of period | 373,631 | 376,325 |
Commercial lending | CRE |  |  |
Allowance for loan losses |  |  |
Allowance for loan losses, start of period | 170,592 | 149,864 |
(Reversal of) provision for credit losses on loans | 18,939 | 4,676 |
Gross charge-offs | (2,398) | (6) |
Gross recoveries | 327 | 196 |
Total net (charge-offs) recoveries | (2,071) | 190 |
Foreign currency translation adjustment | 0 | 0 |
Allowance for loan losses, end of period | 187,460 | 155,067 |
Commercial lending | Residential loan | Multifamily residential |  |  |
Allowance for loan losses |  |  |
Allowance for loan losses, start of period | 34,375 | 23,373 |
(Reversal of) provision for credit losses on loans | 3,032 | 1,135 |
Gross charge-offs | (6) | 0 |
Gross recoveries | 17 | 12 |
Total net (charge-offs) recoveries | 11 | 12 |
Foreign currency translation adjustment | 0 | 0 |
Allowance for loan losses, end of period | 37,418 | 24,526 |
Commercial lending | Construction and land |  |  |
Allowance for loan losses |  |  |
Allowance for loan losses, start of period | 10,469 | 9,109 |
(Reversal of) provision for credit losses on loans | 1,574 | 210 |
Gross charge-offs | (1,224) | 0 |
Gross recoveries | 0 | 3 |
Total net (charge-offs) recoveries | (1,224) | 3 |
Foreign currency translation adjustment | 0 | 0 |
Allowance for loan losses, end of period | 10,819 | 9,322 |
Consumer lending | Residential loan | Single-family residential |  |  |
Allowance for loan losses |  |  |
Allowance for loan losses, start of period | 55,018 | 35,564 |
(Reversal of) provision for credit losses on loans | 899 | 12,442 |
Gross charge-offs | 0 | 0 |
Gross recoveries | 5 | 0 |
Total net (charge-offs) recoveries | 5 | 0 |
Foreign currency translation adjustment | 0 | 0 |
Allowance for loan losses, end of period | 55,922 | 48,007 |
Consumer lending | HELOCs |  |  |
Allowance for loan losses |  |  |
Allowance for loan losses, start of period | 3,947 | 4,475 |
(Reversal of) provision for credit losses on loans | (432) | 580 |
Gross charge-offs | 0 | (91) |
Gross recoveries | 48 | 6 |
Total net (charge-offs) recoveries | 48 | (85) |
Foreign currency translation adjustment | 0 | 0 |
Allowance for loan losses, end of period | 3,563 | 4,971 |
Consumer lending | Other consumer |  |  |
Allowance for loan losses |  |  |
Allowance for loan losses, start of period | 1,657 | 1,560 |
(Reversal of) provision for credit losses on loans | (132) | 155 |
Gross charge-offs | (58) | (40) |
Gross recoveries | 0 | 0 |
Total net (charge-offs) recoveries | (58) | (40) |
Foreign currency translation adjustment | 0 | 0 |
Allowance for loan losses, end of period | $ 1,467 | $ 1,675 |
Accounting Standards Update 2022-02 |  |  |
Allowance for loan losses |  |  |
Impact of ASU 2022-02 adoption |  |  | $ 6,028
Accounting Standards Update 2022-02 | Commercial lending | Commercial and industrial (“C&I”) |  |  |
Allowance for loan losses |  |  |
Impact of ASU 2022-02 adoption |  |  | 5,683
Accounting Standards Update 2022-02 | Commercial lending | CRE |  |  |
Allowance for loan losses |  |  |
Impact of ASU 2022-02 adoption |  |  | 337
Accounting Standards Update 2022-02 | Commercial lending | Residential loan | Multifamily residential |  |  |
Allowance for loan losses |  |  |
Impact of ASU 2022-02 adoption |  |  | 6
Accounting Standards Update 2022-02 | Commercial lending | Construction and land |  |  |
Allowance for loan losses |  |  |
Impact of ASU 2022-02 adoption |  |  | 0
Accounting Standards Update 2022-02 | Consumer lending | Residential loan | Single-family residential |  |  |
Allowance for loan losses |  |  |
Impact of ASU 2022-02 adoption |  |  | 1
Accounting Standards Update 2022-02 | Consumer lending | HELOCs |  |  |
Allowance for loan losses |  |  |
Impact of ASU 2022-02 adoption |  |  | 1
Accounting Standards Update 2022-02 | Consumer lending | Other consumer |  |  |
Allowance for loan losses |  |  |
Impact of ASU 2022-02 adoption |  |  | $ 0

X
- Definition Financing Receivable Allowance For Credit Loss Excluding Accrued Interest Impact of Adoption + References No definition available. + Details
Name: | ewbc_FinancingReceivableAllowanceForCreditLossExcludingAccruedInterestImpactOfAdoption
Namespace Prefix: | ewbc_
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 Amount of foreign currency translation gain (loss) which decreases (increases) 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 50 -Paragraph 13 -Publisher FASB -URI https://asc.fasb.org//1943274/2147479319/326-20-50-13 + Details
Name: | us-gaap_FinancingReceivableAllowanceForCreditLossForeignCurrencyTranslation
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Amount, after recovery, of writeoff of financing receivable, charged against allowance for credit loss. + References Reference 1: 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 Reference 2: http://www.xbrl.org/2003/role/exampleRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 55 -Paragraph 79 -Publisher FASB -URI https://asc.fasb.org//1943274/2147479294/326-20-55-79 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Name Regulation S-K (SK) -Number 229 -Section 1405 -Paragraph (a) -Subparagraph (4) -Publisher SEC + Details
Name: | us-gaap_FinancingReceivableAllowanceForCreditLossWriteoffAfterRecovery
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Amount of increase in allowance for credit loss on financing receivable from recovery. + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 55 -Paragraph 79 -Publisher FASB -URI https://asc.fasb.org//1943274/2147479294/326-20-55-79 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 13 -Subparagraph (e) -Publisher FASB -URI https://asc.fasb.org//1943274/2147479319/326-20-50-13 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Section 50 -Paragraph 11B -Subparagraph (c)(4) -SubTopic 10 -Topic 310 -Publisher FASB -URI https://asc.fasb.org//1943274/2147481962/310-10-50-11B + Details
Name: | us-gaap_FinancingReceivableAllowanceForCreditLossesRecovery
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Amount of writeoff of financing receivable, charged against allowance for credit loss. + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 55 -Paragraph 79 -Publisher FASB -URI https://asc.fasb.org//1943274/2147479294/326-20-55-79 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 6 -Publisher FASB -URI https://asc.fasb.org//1943274/2147479319/326-20-50-6 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 13 -Subparagraph (d) -Publisher FASB -URI https://asc.fasb.org//1943274/2147479319/326-20-50-13 Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Section 50 -Paragraph 11B -Subparagraph (c)(3) -SubTopic 10 -Topic 310 -Publisher FASB -URI https://asc.fasb.org//1943274/2147481962/310-10-50-11B + Details
Name: | us-gaap_FinancingReceivableAllowanceForCreditLossesWriteOffs
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period. + References No definition available. + Details
Name: | us-gaap_FinancingReceivableExcludingAccruedInterestAllowanceForCreditLossRollForward
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Amount of credit loss expense (reversal of expense) for financing receivable. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 13 -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org//1943274/2147479319/326-20-50-13 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 942 -SubTopic 220 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-04(11)) -Publisher FASB -URI https://asc.fasb.org//1943274/2147483589/942-220-S99-1 + Details
Name: | us-gaap_ProvisionForLoanLossesExpensed
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
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_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_OtherConsumerMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_AdjustmentsForNewAccountingPronouncementsAxis=us-gaap_AccountingStandardsUpdate202202Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |