XML 107 R96.htm IDEA: XBRL DOCUMENT
v3.24.2.u1

Fair Value Election (Details) - USD ($) $ in Thousands | Jun. 30, 2024 | Dec. 31, 2023
--- | --- | ---
Fair Value Election [Abstract] |  |
Other Borrowings, Fair Value Disclosure | $ 124,434 | $ 123,116
Fair Value, Option, Quantitative Disclosures [Line Items] |  |
Other Borrowings, Fair Value Disclosure | 124,434 | 123,116
Borrowings - Credit-Link Notes | 122,500 |
Credit-Link Notes |  |
Fair Value Election [Abstract] |  |
Other Borrowings, Fair Value Disclosure | 124,434 | 123,116
Fair Value, Option, Quantitative Disclosures [Line Items] |  |
Other Borrowings, Fair Value Disclosure | $ 124,434 | $ 123,116

X
- Definition Borrowings - Credit-Link Notes + References No definition available. + Details
Name: | pacw_BorrowingsCreditLinkNotes
Namespace Prefix: | pacw_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Fair Value Election + References No definition available. + Details
Name: | pacw_FairValueElectionAbstract
Namespace Prefix: | pacw_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Other Borrowings, Fair Value Disclosure + References No definition available. + Details
Name: | pacw_OtherBorrowingsFairValueDisclosure
Namespace Prefix: | pacw_
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 Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 825 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 30 -Publisher FASB -URI https://asc.fasb.org//1943274/2147482907/825-10-50-30 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 825 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 31 -Publisher FASB -URI https://asc.fasb.org//1943274/2147482907/825-10-50-31 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Topic 825 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 32 -Publisher FASB -URI https://asc.fasb.org//1943274/2147482907/825-10-50-32 + Details
Name: | us-gaap_FairValueOptionQuantitativeDisclosuresLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | us-gaap_DebtInstrumentAxis=pacw_CreditLinkNotesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |