XML 42 R31.htm IDEA: XBRL DOCUMENT
v3.4.0.3

COMMITMENTS AND CONTINGENCIES (Tables) | 3 Months Ended
--- | ---
Mar. 31, 2016
Commitments and Contingencies Disclosure [Abstract] |
Schedule of credit-related commitments | The following table presents the Company’s credit-related commitments as of the periods indicated:
($ in thousands) |  | March 31, 2016 |  | December 31, 2015
Loan commitments |  | $ | 3,859,835 |  |  | $ | 3,370,271 |
Commercial letters of credit and SBLCs |  | $ | 1,254,590 |  |  | $ | 1,293,547 |

X
- Definition Tabular disclosure of outstanding commitments to extend credit that are not reflected in the consolidated financial statements. + References No definition available. + Details
Name: | ewbc_ScheduleOfUnfundedCommitmentsAndCreditExposuresTableTextBlock
Namespace Prefix: | ewbc_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- References No definition available. + Details
Name: | us-gaap_CommitmentsAndContingenciesDisclosureAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration