XML 178 R97.htm IDEA: XBRL DOCUMENT
v3.19.3.a.u2

Loans Receivable and Allowance for Credit Losses (Non-PCI Impaired Loans) (Details) - Non-PCI impaired loans - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2019 | Dec. 31, 2018 | Dec. 31, 2017
Impaired loans disclosures |  |  |
Unpaid Principal Balance | $ 266,772 | $ 152,627 |
Recorded Investment With No Allowance | 129,748 | 87,812 |
Recorded Investment With Allowance | 68,369 | 31,106 |
Total Recorded Investment | 198,117 | 118,918 |
Related Allowance | 5,593 | 4,032 |
Average Recorded Investment | 370,190 | 233,180 | $ 185,132
Recognized Interest Income | 4,318 | 2,330 | 2,989
Commercial Lending |  |  |
Impaired loans disclosures |  |  |
Unpaid Principal Balance | 226,918 | 125,420 |
Recorded Investment With No Allowance | 115,116 | 79,713 |
Recorded Investment With Allowance | 44,699 | 13,287 |
Total Recorded Investment | 159,815 | 93,000 |
Related Allowance | 3,033 | 1,502 |
Average Recorded Investment | 307,472 | 194,194 | 162,502
Recognized Interest Income | 3,692 | 1,786 | 2,517
Commercial Lending | C&I |  |  |
Impaired loans disclosures |  |  |
Unpaid Principal Balance | 174,656 | 82,963 |
Recorded Investment With No Allowance | 73,956 | 48,479 |
Recorded Investment With Allowance | 40,086 | 8,609 |
Total Recorded Investment | 114,042 | 57,088 |
Related Allowance | 2,881 | 1,219 |
Average Recorded Investment | 248,619 | 143,430 | 110,662
Recognized Interest Income | 2,932 | 1,046 | 1,517
Commercial Lending | CRE |  |  |
Impaired loans disclosures |  |  |
Unpaid Principal Balance | 27,601 | 36,426 |
Recorded Investment With No Allowance | 20,098 | 28,285 |
Recorded Investment With Allowance | 1,520 | 2,067 |
Total Recorded Investment | 21,618 | 30,352 |
Related Allowance | 97 | 208 |
Average Recorded Investment | 33,046 | 35,049 | 36,003
Recognized Interest Income | 464 | 491 | 578
Commercial Lending | Residential loan | Multifamily |  |  |
Impaired loans disclosures |  |  |
Unpaid Principal Balance | 4,965 | 6,031 |
Recorded Investment With No Allowance | 1,371 | 2,949 |
Recorded Investment With Allowance | 3,093 | 2,611 |
Total Recorded Investment | 4,464 | 5,560 |
Related Allowance | 55 | 75 |
Average Recorded Investment | 6,116 | 11,742 | 11,455
Recognized Interest Income | 228 | 249 | 422
Commercial Lending | Construction and land |  |  |
Impaired loans disclosures |  |  |
Unpaid Principal Balance | 19,696 |  |
Recorded Investment With No Allowance | 19,691 |  |
Recorded Investment With Allowance | 0 |  |
Total Recorded Investment | 19,691 |  |
Related Allowance | 0 | 0 |
Average Recorded Investment | 19,691 | 3,973 | 4,382
Recognized Interest Income | 68 | 0 | 0
Commercial Lending | Total CRE |  |  |
Impaired loans disclosures |  |  |
Unpaid Principal Balance | 52,262 | 42,457 |
Recorded Investment With No Allowance | 41,160 | 31,234 |
Recorded Investment With Allowance | 4,613 | 4,678 |
Total Recorded Investment | 45,773 | 35,912 |
Related Allowance | 152 | 283 |
Average Recorded Investment | 58,853 | 50,764 | 51,840
Recognized Interest Income | 760 | 740 | 1,000
Consumer Lending |  |  |
Impaired loans disclosures |  |  |
Unpaid Principal Balance | 39,854 | 27,207 |
Recorded Investment With No Allowance | 14,632 | 8,099 |
Recorded Investment With Allowance | 23,670 | 17,819 |
Total Recorded Investment | 38,302 | 25,918 |
Related Allowance | 2,560 | 2,530 |
Average Recorded Investment | 62,718 | 38,986 | 22,630
Recognized Interest Income | 626 | 544 | 472
Consumer Lending | Residential loan | Single-family |  |  |
Impaired loans disclosures |  |  |
Unpaid Principal Balance | 23,626 | 14,670 |
Recorded Investment With No Allowance | 8,507 | 2,552 |
Recorded Investment With Allowance | 13,704 | 10,908 |
Total Recorded Investment | 22,211 | 13,460 |
Related Allowance | 35 | 34 |
Average Recorded Investment | 37,315 | 22,350 | 14,994
Recognized Interest Income | 496 | 474 | 417
Consumer Lending | HELOCs |  |  |
Impaired loans disclosures |  |  |
Unpaid Principal Balance | 13,711 | 10,035 |
Recorded Investment With No Allowance | 6,125 | 5,547 |
Recorded Investment With Allowance | 7,449 | 4,409 |
Total Recorded Investment | 13,574 | 9,956 |
Related Allowance | 8 | 5 |
Average Recorded Investment | 22,851 | 14,134 | 5,494
Recognized Interest Income | 130 | 70 | 55
Consumer Lending | Total residential mortgage |  |  |
Impaired loans disclosures |  |  |
Unpaid Principal Balance | 37,337 | 24,705 |
Recorded Investment With No Allowance | 14,632 | 8,099 |
Recorded Investment With Allowance | 21,153 | 15,317 |
Total Recorded Investment | 35,785 | 23,416 |
Related Allowance | 43 | 39 |
Average Recorded Investment | 60,166 | 36,484 | 20,488
Recognized Interest Income | 626 | 544 | 472
Consumer Lending | Other consumer |  |  |
Impaired loans disclosures |  |  |
Unpaid Principal Balance | 2,517 | 2,502 |
Recorded Investment With No Allowance | 0 | 0 |
Recorded Investment With Allowance | 2,517 | 2,502 |
Total Recorded Investment | 2,517 | 2,502 |
Related Allowance | 2,517 | 2,491 |
Average Recorded Investment | 2,552 | 2,502 | 2,142
Recognized Interest Income | $ 0 | $ 0 | $ 0

X
- Definition Amount of valuation allowance for financing receivables that are expected to be uncollectible that were individually evaluated for impairment. + 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 (g) -URI http://asc.fasb.org/extlink&oid=118936363&loc=SL6953423-111524 + Details
Name: | us-gaap_FinancingReceivableAllowanceForCreditLossesIndividuallyEvaluatedForImpairment1
Namespace Prefix: | us-gaap_
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_FinancingReceivableImpairedLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Average amount of investment of impaired financing receivables with related allowance for credit losses and without a related allowance for credit losses. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 15 -Subparagraph (c)(1) -URI http://asc.fasb.org/extlink&oid=118936363&loc=d3e5212-111524 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 17 -URI http://asc.fasb.org/extlink&oid=118936363&loc=d3e5258-111524 + Details
Name: | us-gaap_ImpairedFinancingReceivableAverageRecordedInvestment
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Amount of interest income recognized that the financing receivables (with related allowance for credit losses and without a related allowance for credit losses) were impaired. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 15 -Subparagraph (c)(2) -URI http://asc.fasb.org/extlink&oid=118936363&loc=d3e5212-111524 + Details
Name: | us-gaap_ImpairedFinancingReceivableInterestIncomeAccrualMethod
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Amount of investment of impaired financing receivables with related allowance for credit losses and without a related allowance for credit losses. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 14A -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=118936363&loc=SL6953550-111524 + Details
Name: | us-gaap_ImpairedFinancingReceivableRecordedInvestment
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Amount of unpaid principal balance of impaired financing receivables with related allowance for credit losses and without related allowance for credit losses. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 15 -Subparagraph (a)(4) -URI http://asc.fasb.org/extlink&oid=118936363&loc=d3e5212-111524 + Details
Name: | us-gaap_ImpairedFinancingReceivableUnpaidPrincipalBalance
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Amount of investment in impaired financing receivables for which there is no related allowance for credit losses. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 14A -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=118936363&loc=SL6953550-111524 + Details
Name: | us-gaap_ImpairedFinancingReceivableWithNoRelatedAllowanceRecordedInvestment
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Amount of investment in impaired financing receivables for which there is a related allowance for credit losses. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 14A -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=118936363&loc=SL6953550-111524 + Details
Name: | us-gaap_ImpairedFinancingReceivableWithRelatedAllowanceRecordedInvestment
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Details
Name: | us-gaap_CreditLossStatusAxis=ewbc_ReceivablesOriginatedOrAcquiredWithoutDeterioratedCreditQualityMember
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_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: |