XML 28 R83.htm IDEA: XBRL DOCUMENT
v3.19.3

Loans Receivable and Allowance for Credit Losses (Summary of Activities in Allowance for Loan Losses) (Details) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2019 | Sep. 30, 2018 | Sep. 30, 2019 | Sep. 30, 2018
Allowance for loan losses |  |  |  |
Beginning balance |  |  | $ 311,322 |
Charge-offs | $ (36) | $ (110) | (426) | $ (13,500)
Ending balance | 345,576 | 310,041 | 345,576 | 310,041
Commercial lending | Commercial and industrial (“C&I”) |  |  |  |
Allowance for loan losses |  |  |  |
Beginning balance |  |  | 189,117 |
Ending balance | 218,869 |  | 218,869 |
Commercial lending | Commercial real estate (“CRE”) |  |  |  |
Allowance for loan losses |  |  |  |
Beginning balance |  |  | 40,666 |
Ending balance | 37,473 |  | 37,473 |
Commercial lending | Real estate loan | Multifamily residential |  |  |  |
Allowance for loan losses |  |  |  |
Beginning balance |  |  | 19,885 |
Ending balance | 20,307 |  | 20,307 |
Commercial lending | Construction and land |  |  |  |
Allowance for loan losses |  |  |  |
Beginning balance |  |  | 20,290 |
Ending balance | 29,171 |  | 29,171 |
Consumer lending | Real estate loan | Single-family residential |  |  |  |
Allowance for loan losses |  |  |  |
Beginning balance |  |  | 31,340 |
Ending balance | 29,935 |  | 29,935 |
Consumer lending | HELOCs |  |  |  |
Allowance for loan losses |  |  |  |
Beginning balance |  |  | 5,774 |
Ending balance | 5,856 |  | 5,856 |
Consumer lending | Other consumer |  |  |  |
Allowance for loan losses |  |  |  |
Beginning balance |  |  | 4,250 |
Ending balance | 3,965 |  | 3,965 |
Non-PCI Loans |  |  |  |
Allowance for loan losses |  |  |  |
Beginning balance | 330,620 | 301,511 | 311,300 | 287,070
(Reversal of) provision for loan losses | 37,884 | 12,650 | 79,272 | 47,722
Charge-offs | (26,142) | (4,468) | (55,159) | (36,627)
Recoveries | 3,679 | 809 | 10,621 | 12,569
Net charge-offs | (22,463) | (3,659) | (44,538) | (24,058)
Foreign currency translation adjustments | (465) | (492) | (458) | (724)
Ending balance | 345,576 | 310,010 | 345,576 | 310,010
Non-PCI Loans | Commercial lending | Commercial and industrial (“C&I”) |  |  |  |
Allowance for loan losses |  |  |  |
Charge-offs | (25,098) | (4,462) | (54,087) | (36,441)
Recoveries | 1,648 | 411 | 5,612 | 8,841
Non-PCI Loans | Commercial lending | Commercial real estate (“CRE”) |  |  |  |
Allowance for loan losses |  |  |  |
Charge-offs | (1,021) | 0 | (1,021) | 0
Recoveries | 1,896 | 2 | 3,955 | 431
Non-PCI Loans | Commercial lending | Real estate loan | Multifamily residential |  |  |  |
Allowance for loan losses |  |  |  |
Recoveries | 42 | 77 | 376 | 1,471
Non-PCI Loans | Commercial lending | Construction and land |  |  |  |
Allowance for loan losses |  |  |  |
Recoveries | 21 | 23 | 523 | 716
Non-PCI Loans | Consumer lending | Real estate loan | Single-family residential |  |  |  |
Allowance for loan losses |  |  |  |
Charge-offs | (11) | 0 | (11) | (1)
Recoveries | 60 | 295 | 134 | 1,108
Non-PCI Loans | Consumer lending | HELOCs |  |  |  |
Allowance for loan losses |  |  |  |
Recoveries | 5 | 0 | 7 | 0
Non-PCI Loans | Consumer lending | Other consumer |  |  |  |
Allowance for loan losses |  |  |  |
Charge-offs | (12) | (6) | (40) | (185)
Recoveries | 7 | 1 | 14 | 2
PCI Loans |  |  |  |
Allowance for loan losses |  |  |  |
Beginning balance | 5 | 39 | 22 | 58
(Reversal of) provision for loan losses | (5) | (8) | (22) | (27)
Ending balance | 0 | $ 31 | 0 | $ 31
PCI Loans | Commercial lending | Commercial and industrial (“C&I”) |  |  |  |
Allowance for loan losses |  |  |  |
Beginning balance |  |  | 0 |
Ending balance | 0 |  | 0 |
PCI Loans | Commercial lending | Commercial real estate (“CRE”) |  |  |  |
Allowance for loan losses |  |  |  |
Beginning balance |  |  | 22 |
Ending balance | 0 |  | 0 |
PCI Loans | Commercial lending | Real estate loan | Multifamily residential |  |  |  |
Allowance for loan losses |  |  |  |
Beginning balance |  |  | 0 |
Ending balance | 0 |  | 0 |
PCI Loans | Commercial lending | Construction and land |  |  |  |
Allowance for loan losses |  |  |  |
Beginning balance |  |  | 0 |
Ending balance | 0 |  | 0 |
PCI Loans | Consumer lending | Real estate loan | Single-family residential |  |  |  |
Allowance for loan losses |  |  |  |
Beginning balance |  |  | 0 |
Ending balance | 0 |  | 0 |
PCI Loans | Consumer lending | HELOCs |  |  |  |
Allowance for loan losses |  |  |  |
Beginning balance |  |  | 0 |
Ending balance | 0 |  | 0 |
PCI Loans | Consumer lending | Other consumer |  |  |  |
Allowance for loan losses |  |  |  |
Beginning balance |  |  | 0 |
Ending balance | $ 0 |  | $ 0 |

X
- Definition Amount of recovery of loans and lease receivables which had previously been fully or partially written-off as bad debts. + 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)(4) -URI http://asc.fasb.org/extlink&oid=118936363&loc=SL6953423-111524 + Details
Name: | us-gaap_AllowanceForLoanAndLeaseLossRecoveryOfBadDebts
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Amount of gain (loss) from converting allowance reserve for credit loss to currency of reporting entity from amount denominated or measured in a different currency, which decreases (increases) the allowance for loan and lease losses. + References Reference 1: 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(d)) -URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 15 -URI http://asc.fasb.org/extlink&oid=118936363&loc=d3e5212-111524 + Details
Name: | us-gaap_AllowanceForLoanAndLeaseLossesForeignCurrencyTranslation
Namespace Prefix: | us-gaap_
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 loans and leases that have been written off from both loan receivables and allowance reserve for credit loss. + 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)(3) -URI http://asc.fasb.org/extlink&oid=118936363&loc=SL6953423-111524 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(d)) -URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878 + Details
Name: | us-gaap_AllowanceForLoanAndLeaseLossesWriteOffs
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Amount, after recoveries, of loans and leases that have been written-off. + References No definition available. + Details
Name: | us-gaap_AllowanceForLoanAndLeaseLossesWriteoffsNet
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Amount of allowance to cover probable credit losses on loans and leases. Includes carryover of or adjustments to the allowance for loan losses in connection with business combinations. Excludes allowance 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 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 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 11B -Subparagraph (g) -URI http://asc.fasb.org/extlink&oid=118936363&loc=SL6953423-111524 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (b)(1)(ii) -URI http://asc.fasb.org/extlink&oid=118939070&loc=d3e15032-111544 Reference 4: 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 5: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section S99 -Paragraph 4 -Subparagraph (SAB Topic 6.L.1) -URI http://asc.fasb.org/extlink&oid=27010918&loc=d3e74567-122707 + Details
Name: | us-gaap_LoansAndLeasesReceivableAllowance
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Amount of expense related to estimated loss from loan and lease transactions. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=118932676&loc=d3e3602-108585 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 220 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-04.11) -URI http://asc.fasb.org/extlink&oid=116637391&loc=SL114874048-224260 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)(2) -URI http://asc.fasb.org/extlink&oid=118936363&loc=SL6953423-111524 + Details
Name: | us-gaap_ProvisionForLoanAndLeaseLosses
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_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: |