XML 104 R74.htm IDEA: XBRL DOCUMENT
v2.4.0.6

NON-COVERED LOANS AND ALLOWANCE FOR LOAN LOSSES (Details 14) (USD $) In Thousands, unless otherwise specified | Mar. 31, 2013 | Dec. 31, 2012
--- | --- | ---
Recorded investment in total loans receivable related to each balance in the allowance for loan losses |  |  |  |
Loans individually evaluated for impairment | $ 156,109 |  | $ 200,496 |
Covered loans individually evaluated for impairment | 5,237 | [1] | 5,237 | [1]
Loans collectively evaluated for impairment | 12,622,540 |  | 12,184,825 |
Covered loans acquired with deteriorated credit quality | 2,808,483 | [2] | 3,019,271 | [2]
Ending balance | 15,592,369 |  | 15,409,829 |
Covered nonaccrual loans | 207,683 | [1],[3],[4] | 204,310 | [1],[3],[4]
Covered loans accounted for under ASC 310-10 |  |  |  |
Recorded investment in total loans receivable related to each balance in the allowance for loan losses |  |  |  |
Covered nonaccrual loans | 37,000 |  | 29,600 |
Residential |  |  |  |
Recorded investment in total loans receivable related to each balance in the allowance for loan losses |  |  |  |
Loans individually evaluated for impairment | 52,303 |  | 72,475 |
Loans collectively evaluated for impairment | 3,201,830 |  | 3,015,556 |
Covered loans acquired with deteriorated credit quality | 899,754 | [2] | 976,969 | [2]
Ending balance | 4,153,887 |  | 4,065,000 |
Commercial Real Estate ("CRE") |  |  |  |
Recorded investment in total loans receivable related to each balance in the allowance for loan losses |  |  |  |
Loans individually evaluated for impairment | 75,551 |  | 96,841 |
Loans collectively evaluated for impairment | 3,920,761 |  | 3,797,854 |
Covered loans acquired with deteriorated credit quality | 1,531,686 | [2] | 1,727,159 | [2]
Ending balance | 5,527,998 |  | 5,621,854 |
Commercial and Industrial ("C&I") |  |  |  |
Recorded investment in total loans receivable related to each balance in the allowance for loan losses |  |  |  |
Loans individually evaluated for impairment | 26,151 |  | 26,652 |
Loans collectively evaluated for impairment | 4,254,638 |  | 4,204,613 |
Covered loans acquired with deteriorated credit quality | 229,856 | [2] | 261,622 | [2]
Ending balance | 4,510,645 |  | 4,492,887 |
Consumer |  |  |  |
Recorded investment in total loans receivable related to each balance in the allowance for loan losses |  |  |  |
Loans individually evaluated for impairment | 2,104 |  | 4,528 |
Loans collectively evaluated for impairment | 841,690 |  | 740,354 |
Covered loans acquired with deteriorated credit quality | 50,894 | [2] | 53,521 | [2]
Ending balance | 894,688 |  | 798,403 |
Covered Loans under ASC 310-10 Subject to Allowance for Loan Losses |  |  |  |
Recorded investment in total loans receivable related to each balance in the allowance for loan losses |  |  |  |
Covered loans individually evaluated for impairment | 5,237 | [5] | 5,237 | [5]
Loans collectively evaluated for impairment | 403,621 |  | 426,448 |
Ending balance | 408,858 |  | 431,685 |
Covered Loans under ASC 310-30 Subject to Allowance for Loan Losses |  |  |  |
Recorded investment in total loans receivable related to each balance in the allowance for loan losses |  |  |  |
Covered loans acquired with deteriorated credit quality | 96,293 | [2] |  |
Ending balance | $ 96,293 |  |  |
[1] | Includes $37.0 million and $29.6 million of loans at March 31, 2013 and December 31, 2012, respectively, accounted forunder ASC 310-10, of which some loans have additional partial balances accounted for under ASC 310-30.
[2] | The Company has elected to account for all covered loans acquired in the FDIC-assisted acquisitions under ASC 310-30. The total principal balance is presented and excludes the purchase discount and any additional advances subsequent to acquisition date.
[3] | Covered nonaccrual loans include loans that meet the criteria for nonaccrual but have a yield accreted through interest income under ASC 310-30 and all losses on covered loans are 80% reimbursed by the FDIC.
[4] | Represents principal balance net of discount.
[5] | Excludes $37.0 million and $29.6 million of covered non-accrual loans at March 31, 2013 and December 31, 2012, respectively, accounted for under ASC 310-10, of which some loans have additional partial balances accounted for under ASC 310-30.

X
- Definition The balance of covered loans that were acquired with deteriorated credit quality. + References No definition available. + Details
Name: | ewbc_CoveredLoansAcquiredWithDeterioratedCreditQuality
Namespace Prefix: | ewbc_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition The balance of covered loans that were collectively evaluated for impairment. + References No definition available. + Details
Name: | ewbc_CoveredLoansCollectivelyEvaluatedForImpairment
Namespace Prefix: | ewbc_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition The carrying amount as of the balance sheet date of covered loans receivable that are considered to be nonperforming assets and on nonaccrual status. + References No definition available. + Details
Name: | ewbc_CoveredNonaccrualLoans
Namespace Prefix: | ewbc_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Details
Name: | ewbc_RecordedInvestmentInTotalLoansReceivableRelatedToEachBalanceInAllowanceForLoanLossesAbstract
Namespace Prefix: | ewbc_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition The balance of financing receivables that were collectively evaluated for impairment. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 11B -Subparagraph (h) -URI http://asc.fasb.org/extlink&oid=7512638&loc=SL6953423-111524 + Details
Name: | us-gaap_FinancingReceivableCollectivelyEvaluatedForImpairment
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition The balance of financing receivables that were individually evaluated for impairment. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 11B -Subparagraph (h) -URI http://asc.fasb.org/extlink&oid=7512638&loc=SL6953423-111524 + Details
Name: | us-gaap_FinancingReceivableIndividuallyEvaluatedForImpairment
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Amount before allowance of loans and leases held in portfolio, including but not limited to, commercial and consumer loans. Includes deferred interest and fees, undisbursed portion of loan balance, unamortized costs and premiums and discounts from face amounts. Excludes loans and leases covered under loss sharing agreements. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6375948&loc=d3e4428-111522 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Statement of Position (SOP) -Number 01-6 -Paragraph 13 -Subparagraph e -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. + Details
Name: | us-gaap_LoansAndLeasesReceivableGrossCarryingAmount
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant