XML 111 R74.htm IDEA: XBRL DOCUMENT
v3.19.3

Loans Receivable and Allowance for Credit Losses (Composition of Non-PCI and PCI Loans) (Details) - USD ($) $ in Thousands | Sep. 30, 2019 | Dec. 31, 2018
--- | --- | ---
LOANS RECEIVABLE AND ALLOWANCE FOR LOAN LOSSES |  |
Loans held-for-investment | $ 34,024,976 | $ 32,385,189
Allowance for loan losses | (345,576) | (311,322)
Loans held-for-investment, net | 33,679,400 | 32,073,867
Commercial lending |  |
LOANS RECEIVABLE AND ALLOWANCE FOR LOAN LOSSES |  |
Loans held-for-investment | 25,359,688 | 24,326,631
Commercial lending | Commercial and industrial (“C&I”) |  |
LOANS RECEIVABLE AND ALLOWANCE FOR LOAN LOSSES |  |
Loans held-for-investment | 12,301,002 | 12,056,970
Commercial lending | Commercial real estate (“CRE”) |  |
LOANS RECEIVABLE AND ALLOWANCE FOR LOAN LOSSES |  |
Loans held-for-investment | 9,749,583 | 9,260,199
Commercial lending | Real estate loan | Multifamily residential |  |
LOANS RECEIVABLE AND ALLOWANCE FOR LOAN LOSSES |  |
Loans held-for-investment | 2,589,203 | 2,470,668
Commercial lending | Construction and land |  |
LOANS RECEIVABLE AND ALLOWANCE FOR LOAN LOSSES |  |
Loans held-for-investment | 719,900 | 538,794
Consumer lending |  |
LOANS RECEIVABLE AND ALLOWANCE FOR LOAN LOSSES |  |
Loans held-for-investment | 8,665,288 | 8,058,558
Consumer lending | Real estate loan | Single-family residential |  |
LOANS RECEIVABLE AND ALLOWANCE FOR LOAN LOSSES |  |
Loans held-for-investment | 6,811,014 | 6,036,454
Consumer lending | HELOCs |  |
LOANS RECEIVABLE AND ALLOWANCE FOR LOAN LOSSES |  |
Loans held-for-investment | 1,540,121 | 1,690,834
Consumer lending | Other consumer |  |
LOANS RECEIVABLE AND ALLOWANCE FOR LOAN LOSSES |  |
Loans held-for-investment | 314,153 | 331,270
Non-PCI Loans |  |
LOANS RECEIVABLE AND ALLOWANCE FOR LOAN LOSSES |  |
Loans held-for-investment | 33,784,270 | 32,077,166
Allowance for loan losses | (345,576) | (311,300)
Loans held-for-investment, net | 33,438,694 | 31,765,866
Net deferred loan fees, unearned fees, unamortized premiums and unaccreted discounts | (39,800) | (48,900)
Non-PCI Loans | Commercial lending |  |
LOANS RECEIVABLE AND ALLOWANCE FOR LOAN LOSSES |  |
Loans held-for-investment | 25,211,110 | 24,124,659
Non-PCI Loans | Commercial lending | Commercial and industrial (“C&I”) |  |
LOANS RECEIVABLE AND ALLOWANCE FOR LOAN LOSSES |  |
Loans held-for-investment | 12,299,163 | 12,054,818
Non-PCI Loans | Commercial lending | Commercial real estate (“CRE”) |  |
LOANS RECEIVABLE AND ALLOWANCE FOR LOAN LOSSES |  |
Loans held-for-investment | 9,627,330 | 9,097,165
Non-PCI Loans | Commercial lending | Real estate loan | Multifamily residential |  |
LOANS RECEIVABLE AND ALLOWANCE FOR LOAN LOSSES |  |
Loans held-for-investment | 2,564,758 | 2,433,924
Non-PCI Loans | Commercial lending | Construction and land |  |
LOANS RECEIVABLE AND ALLOWANCE FOR LOAN LOSSES |  |
Loans held-for-investment | 719,859 | 538,752
Non-PCI Loans | Consumer lending |  |
LOANS RECEIVABLE AND ALLOWANCE FOR LOAN LOSSES |  |
Loans held-for-investment | 8,573,160 | 7,952,507
Non-PCI Loans | Consumer lending | Real estate loan | Single-family residential |  |
LOANS RECEIVABLE AND ALLOWANCE FOR LOAN LOSSES |  |
Loans held-for-investment | 6,725,574 | 5,939,258
Non-PCI Loans | Consumer lending | HELOCs |  |
LOANS RECEIVABLE AND ALLOWANCE FOR LOAN LOSSES |  |
Loans held-for-investment | 1,533,433 | 1,681,979
Non-PCI Loans | Consumer lending | Other consumer |  |
LOANS RECEIVABLE AND ALLOWANCE FOR LOAN LOSSES |  |
Loans held-for-investment | 314,153 | 331,270
PCI Loans |  |
LOANS RECEIVABLE AND ALLOWANCE FOR LOAN LOSSES |  |
Loans held-for-investment | 240,706 | 308,023
Allowance for loan losses | 0 | (22)
Loans held-for-investment, net | 240,706 | 308,001
Discount related to ASC 310-30 | 16,700 | 22,200
PCI Loans | Commercial lending |  |
LOANS RECEIVABLE AND ALLOWANCE FOR LOAN LOSSES |  |
Loans held-for-investment | 148,578 | 201,972
PCI Loans | Commercial lending | Commercial and industrial (“C&I”) |  |
LOANS RECEIVABLE AND ALLOWANCE FOR LOAN LOSSES |  |
Loans held-for-investment | 1,839 | 2,152
PCI Loans | Commercial lending | Commercial real estate (“CRE”) |  |
LOANS RECEIVABLE AND ALLOWANCE FOR LOAN LOSSES |  |
Loans held-for-investment | 122,253 | 163,034
PCI Loans | Commercial lending | Real estate loan | Multifamily residential |  |
LOANS RECEIVABLE AND ALLOWANCE FOR LOAN LOSSES |  |
Loans held-for-investment | 24,445 | 36,744
PCI Loans | Commercial lending | Construction and land |  |
LOANS RECEIVABLE AND ALLOWANCE FOR LOAN LOSSES |  |
Loans held-for-investment | 41 | 42
PCI Loans | Consumer lending |  |
LOANS RECEIVABLE AND ALLOWANCE FOR LOAN LOSSES |  |
Loans held-for-investment | 92,128 | 106,051
PCI Loans | Consumer lending | Real estate loan | Single-family residential |  |
LOANS RECEIVABLE AND ALLOWANCE FOR LOAN LOSSES |  |
Loans held-for-investment | 85,440 | 97,196
PCI Loans | Consumer lending | HELOCs |  |
LOANS RECEIVABLE AND ALLOWANCE FOR LOAN LOSSES |  |
Loans held-for-investment | 6,688 | 8,855
PCI Loans | Consumer lending | Other consumer |  |
LOANS RECEIVABLE AND ALLOWANCE FOR LOAN LOSSES |  |
Loans held-for-investment | $ 0 | $ 0

X
- Definition Financing Receivable, Discount + References No definition available. + Details
Name: | ewbc_FinancingReceivableDiscount
Namespace Prefix: | ewbc_
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 No definition available. + Details
Name: | us-gaap_AccountsNotesAndLoansReceivableLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
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=118936363&loc=SL6953423-111524 Reference 2: 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=118955202&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 13 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=119407570&loc=SL82919249-210447 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03(7)(d)) -URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878 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=119407570&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 after allowance and deduction of deferred interest and fees, unamortized costs and premiums and discounts from face amounts, of loans and leases held in portfolio, including but not limited to, commercial and consumer loans. Excludes loans and leases covered under loss sharing agreements and loans held for sale. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=118952595&loc=d3e4428-111522 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03.7) -URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878 + Details
Name: | us-gaap_LoansAndLeasesReceivableNetReportedAmount
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Amount, before allowance for credit loss, of financing receivable. + 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 http://asc.fasb.org/extlink&oid=119407570&loc=SL82919230-210447 + Details
Name: | us-gaap_NotesReceivableGross
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Amount of deferred fees paid by borrowers and unamortized costs incurred to originate loans and leases, unamortized loan commitments and loan syndication fees, and premiums over or discounts from face amounts of loans that are being amortized into income as an adjustment to yield. Excludes amounts for loans and leases covered under loss sharing agreements. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 20 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6378536&loc=d3e10092-111533 + Details
Name: | us-gaap_UnamortizedLoanCommitmentAndOriginationFeesAndUnamortizedDiscountsOrPremiums
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_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_CreditLossStatusAxis=ewbc_ReceivablesOriginatedOrAcquiredWithoutDeterioratedCreditQualityMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_CreditLossStatusAxis=us-gaap_FinancialAssetAcquiredWithCreditDeteriorationMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |