XML 91 R72.htm IDEA: XBRL DOCUMENT
v3.21.1

Loans Receivable and Allowance for Credit Losses (Summary of Activities in Allowance for Loan Losses) (Details) - USD ($) $ in Thousands | 3 Months Ended
--- | ---
Mar. 31, 2021 | Mar. 31, 2020
Allowance for loan losses |  |
Allowance for loan losses, beginning of period | $ 619,983 | $ 358,287
Provision for (reversal of) credit losses on loans | 1,048 | 74,656
Gross charge-offs | (15,899) | (12,957)
Gross recoveries | 2,493 | 12,059
Total net (charge-offs) recoveries | (13,406) | (898)
Foreign currency translation adjustment | (119) | (200)
Allowance for loan losses, end of period | 607,506 | 557,003
Cumulative Effect, Period Of Adoption, Adjustment | ASU 2016-13 |  |
Allowance for loan losses |  |
Allowance for loan losses, beginning of period |  | 125,158
Commercial lending | Commercial and industrial (“C&I”) |  |
Allowance for loan losses |  |
Allowance for loan losses, beginning of period | 398,040 | 238,376
Provision for (reversal of) credit losses on loans | 3,839 | 60,618
Gross charge-offs | (8,436) | (11,977)
Gross recoveries | 760 | 1,575
Total net (charge-offs) recoveries | (7,676) | (10,402)
Foreign currency translation adjustment | (119) | (200)
Allowance for loan losses, end of period | 394,084 | 362,629
Commercial lending | Commercial and industrial (“C&I”) | Cumulative Effect, Period Of Adoption, Adjustment | ASU 2016-13 |  |
Allowance for loan losses |  |
Allowance for loan losses, beginning of period |  | 74,237
Commercial lending | Commercial real estate (“CRE”) |  |
Allowance for loan losses |  |
Allowance for loan losses, beginning of period | 163,791 | 40,509
Provision for (reversal of) credit losses on loans | (10,277) | 11,435
Gross charge-offs | (7,195) | (954)
Gross recoveries | 80 | 9,660
Total net (charge-offs) recoveries | (7,115) | 8,706
Foreign currency translation adjustment | 0 | 0
Allowance for loan losses, end of period | 146,399 | 132,819
Commercial lending | Commercial real estate (“CRE”) | Cumulative Effect, Period Of Adoption, Adjustment | ASU 2016-13 |  |
Allowance for loan losses |  |
Allowance for loan losses, beginning of period |  | 72,169
Commercial lending | Residential loan | Multifamily residential |  |
Allowance for loan losses |  |
Allowance for loan losses, beginning of period | 27,573 | 22,826
Provision for (reversal of) credit losses on loans | (1,391) | 1,281
Gross charge-offs | (17) | 0
Gross recoveries | 1,242 | 535
Total net (charge-offs) recoveries | 1,225 | 535
Foreign currency translation adjustment | 0 | 0
Allowance for loan losses, end of period | 27,407 | 16,530
Commercial lending | Residential loan | Multifamily residential | Cumulative Effect, Period Of Adoption, Adjustment | ASU 2016-13 |  |
Allowance for loan losses |  |
Allowance for loan losses, beginning of period |  | (8,112)
Commercial lending | Construction and land |  |
Allowance for loan losses |  |
Allowance for loan losses, beginning of period | 10,239 | 19,404
Provision for (reversal of) credit losses on loans | 8,592 | 1,482
Gross charge-offs | (71) | 0
Gross recoveries | 329 | 21
Total net (charge-offs) recoveries | 258 | 21
Foreign currency translation adjustment | 0 | 0
Allowance for loan losses, end of period | 19,089 | 11,018
Commercial lending | Construction and land | Cumulative Effect, Period Of Adoption, Adjustment | ASU 2016-13 |  |
Allowance for loan losses |  |
Allowance for loan losses, beginning of period |  | (9,889)
Consumer lending | Residential loan | Single-family residential |  |
Allowance for loan losses |  |
Allowance for loan losses, beginning of period | 15,520 | 28,527
Provision for (reversal of) credit losses on loans | 376 | 1,700
Gross charge-offs | (134) | 0
Gross recoveries | 77 | 265
Total net (charge-offs) recoveries | (57) | 265
Foreign currency translation adjustment | 0 | 0
Allowance for loan losses, end of period | 15,839 | 26,822
Consumer lending | Residential loan | Single-family residential | Cumulative Effect, Period Of Adoption, Adjustment | ASU 2016-13 |  |
Allowance for loan losses |  |
Allowance for loan losses, beginning of period |  | (3,670)
Consumer lending | HELOCs |  |
Allowance for loan losses |  |
Allowance for loan losses, beginning of period | 2,690 | 5,265
Provision for (reversal of) credit losses on loans | 22 | 412
Gross charge-offs | (45) | 0
Gross recoveries | 3 | 2
Total net (charge-offs) recoveries | (42) | 2
Foreign currency translation adjustment | 0 | 0
Allowance for loan losses, end of period | 2,670 | 3,881
Consumer lending | HELOCs | Cumulative Effect, Period Of Adoption, Adjustment | ASU 2016-13 |  |
Allowance for loan losses |  |
Allowance for loan losses, beginning of period |  | (1,798)
Consumer lending | Other consumer |  |
Allowance for loan losses |  |
Allowance for loan losses, beginning of period | 2,130 | 3,380
Provision for (reversal of) credit losses on loans | (113) | (2,272)
Gross charge-offs | (1) | (26)
Gross recoveries | 2 | 1
Total net (charge-offs) recoveries | 1 | (25)
Foreign currency translation adjustment | 0 | 0
Allowance for loan losses, end of period | $ 2,018 | 3,304
Consumer lending | Other consumer | Cumulative Effect, Period Of Adoption, Adjustment | ASU 2016-13 |  |
Allowance for loan losses |  |
Allowance for loan losses, beginning of period |  | $ 2,221

X
- Definition Financing Receivable, Allowance for Credit Loss, Write Off, Net Of Recovery + References No definition available. + Details
Name: | ewbc_FinancingReceivableAllowanceForCreditLossWriteOffNetOfRecovery
Namespace Prefix: | ewbc_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Provision for (Reversal of) Credit Losses on Loans and Provision for Loan Losses + References No definition available. + Details
Name: | ewbc_ProvisionForReversalOfCreditLossesOnLoansAndProvisionForLoanLosses
Namespace Prefix: | ewbc_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
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_AllowanceForLoanAndLeaseLossesRollForward
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Amount of foreign currency translation gain (loss) which (increases) decreases allowance for credit loss on financing receivable. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 20 -Section 50 -Paragraph 13 -URI http://asc.fasb.org/extlink&oid=121599337&loc=SL82919249-210447 + Details
Name: | us-gaap_FinancingReceivableAllowanceForCreditLossForeignCurrencyTranslation
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Amount of allowance for credit loss on financing receivable. Excludes allowance for financing receivable covered under loss sharing agreement. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 11B -Subparagraph (c)(1) -URI http://asc.fasb.org/extlink&oid=121611835&loc=SL6953423-111524 Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03(7)(2)) -URI http://asc.fasb.org/extlink&oid=120398452&loc=d3e534808-122878 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 20 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=121599878&loc=SL82895884-210446 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 20 -Section 50 -Paragraph 13 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=121599337&loc=SL82919249-210447 Reference 5: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 20 -Section 50 -Paragraph 13 -Subparagraph (f) -URI http://asc.fasb.org/extlink&oid=121599337&loc=SL82919249-210447 + Details
Name: | us-gaap_FinancingReceivableAllowanceForCreditLosses
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

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 -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 20 -Section 55 -Paragraph 79 -URI http://asc.fasb.org/extlink&oid=121647567&loc=SL82922352-210448 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 20 -Section 50 -Paragraph 13 -Subparagraph (e) -URI http://asc.fasb.org/extlink&oid=121599337&loc=SL82919249-210447 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 11B -Subparagraph (c)(4) -URI http://asc.fasb.org/extlink&oid=121611835&loc=SL6953423-111524 + 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/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 20 -Section 50 -Paragraph 13 -Subparagraph (d) -URI http://asc.fasb.org/extlink&oid=121599337&loc=SL82919249-210447 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 11B -Subparagraph (c)(3) -URI http://asc.fasb.org/extlink&oid=121611835&loc=SL6953423-111524 Reference 3: http://www.xbrl.org/2003/role/exampleRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 20 -Section 55 -Paragraph 79 -URI http://asc.fasb.org/extlink&oid=121647567&loc=SL82922352-210448 + Details
Name: | us-gaap_FinancingReceivableAllowanceForCreditLossesWriteOffs
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Details
Name: | srt_CumulativeEffectPeriodOfAdoptionAxis=srt_CumulativeEffectPeriodOfAdoptionAdjustmentMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_AdjustmentsForNewAccountingPronouncementsAxis=us-gaap_AccountingStandardsUpdate201613Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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: |