Document and Entity Information
Document and Entity Information | Feb. 28, 2022 |
Document And Entity Information [Line Items] | |
Amendment Flag | false |
Entity Central Index Key | 0001212545 |
Document Type | 8-K |
Document Period End Date | Feb. 28, 2022 |
Entity Registrant Name | WESTERN ALLIANCE BANCORPORATION |
Entity Incorporation State Country Code | DE |
Entity File Number | 001-32550 |
Entity Tax Identification Number | 88-0365922 |
Entity Address, Address Line One | One E. Washington Street |
Entity Address, City or Town | Phoenix |
Entity Address, State or Province | AZ |
Entity Address, Postal Zip Code | 85004 |
City Area Code | (602) |
Local Phone Number | 389-3500 |
Written Communications | false |
Soliciting Material | false |
Pre Commencement Tender Offer | false |
Pre Commencement Issuer Tender Offer | false |
Entity Emerging Growth Company | false |
Common Stock [Member] | |
Document And Entity Information [Line Items] | |
Security 12b Title | Common Stock, $0.0001 Par Value |
Trading Symbol | WAL |
Security Exchange Name | NYSE |
Series A Preferred Stock [Member] | |
Document And Entity Information [Line Items] | |
Security 12b Title | Depositary Shares, Each Representing a 1/400th Interest in a Share of 4.250% Fixed-Rate Reset Non-Cumulative Perpetual Preferred Stock, Series A |
Trading Symbol | WAL PrA |
Security Exchange Name | NYSE |