XML 38 R21.htm IDEA: XBRL DOCUMENT
v3.23.1

Stockholders' Equity and Earnings Per Share | 3 Months Ended
--- | ---
Mar. 31, 2023
Stockholders' Equity and Earnings Per Share [Abstract] |
Stockholders' Equity and Earnings Per Share | Stockholders’ Equity and Earnings Per Share The following table presents the basic and diluted EPS calculations for the three months ended March 31, 2023 and 2022. For more information on the calculation of EPS, see Note 1 — Summary of Significant Accounting Policies — Significant Accounting Policies — Earnings Per Share to the Consolidated Financial Statements of the Company’s 2022 Form 10-K.
|  | Three Months Ended March 31, |  |  |  |  |  |  |
($ and shares in thousands, except per share data) |  | 2023 |  | 2022 |  |  |  |  |  |  |  |  |  |  |
Basic: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Net income |  | $ | 322,439 |  |  | $ | 237,652 |  |  |  |  |  |  |  |  |  |  |  |
Weighted-average number of shares outstanding |  | 141,112 |  |  | 142,025 |  |  |  |  |  |  |  |  |  |  |  |
Basic EPS |  | $ | 2.28 |  |  | $ | 1.67 |  |  |  |  |  |  |  |  |  |  |  |
Diluted: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Net income |  | $ | 322,439 |  |  | $ | 237,652 |  |  |  |  |  |  |  |  |  |  |  |
Weighted-average number of shares outstanding |  | 141,112 |  |  | 142,025 |  |  |  |  |  |  |  |  |  |  |  |
Add: Dilutive impact of unvested RSUs |  | 801 |  |  | 1,198 |  |  |  |  |  |  |  |  |  |  |  |
Diluted weighted-average number of shares outstanding |  | 141,913 |  |  | 143,223 |  |  |  |  |  |  |  |  |  |  |  |
Diluted EPS |  | $ | 2.27 |  |  | $ | 1.66 |  |  |  |  |  |  |  |  |  |  |  |
Approximately 417 thousand and 123 thousand weighted-average shares of anti-dilutive RSUs were excluded from the diluted EPS computations for the three months ended March 31, 2023 and 2022, respectively.

X
- Definition Stockholders' Equity and Earnings Per Share [Abstract] + References No definition available. + Details
Name: | ewbc_StockholdersEquityandEarningsPerShareAbstract
Namespace Prefix: | ewbc_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition The entire disclosure for earnings per share. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 260 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Subparagraph (c) -Publisher FASB -URI https://asc.fasb.org//1943274/2147482662/260-10-50-1 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 260 -Name Accounting Standards Codification -Publisher FASB -URI https://asc.fasb.org//260/tableOfContent Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Topic 260 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Publisher FASB -URI https://asc.fasb.org//1943274/2147482662/260-10-50-2 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Topic 260 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 3 -Publisher FASB -URI https://asc.fasb.org//1943274/2147482662/260-10-50-3 + Details
Name: | us-gaap_EarningsPerShareTextBlock
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration