XML 113 R102.htm IDEA: XBRL DOCUMENT
v3.24.2.u1

Fair Value Measurements - Activity for Level 3 Assets Measured at Fair Value on a Recurring Basis (Details) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended |
--- | --- | --- | ---
Jun. 30, 2024 | Mar. 31, 2024 | Jun. 30, 2023 | Jun. 30, 2024 | Jun. 30, 2023 | Dec. 31, 2023
Level 3 CMO [Roll Forward] |  |  |  |  |  |
Other Borrowings, Fair Value Disclosure | $ 124,434 |  |  | $ 124,434 |  | $ 123,116
Proceeds from borrowings |  |  |  | 600,000 | $ 6,122,273 |
available-for-sale arising during the period | 729 | $ (18,208) | $ (64,145) | (17,479) | $ 3,826 |
Credit-Link Notes |  |  |  |  |  |
Level 3 CMO [Roll Forward] |  |  |  |  |  |
Other Borrowings, Fair Value Disclosure | 124,434 |  |  | 124,434 |  | 123,116
Level 3 |  |  |  |  |  |
Level 3 CMO [Roll Forward] |  |  |  |  |  |
Equity warrants, Balance, beginning of period |  | 3,689 |  | 3,689 |  |
Total included in earnings |  |  |  | (146) |  |
Total included in other comprehensive income |  |  |  | 0 |  |
Payments for Repurchase of Warrants |  |  |  | 0 |  |
Sales, Equity Warrants |  |  |  | 296 |  |
Warrant (loss) income |  |  |  | 280 |  |
Fair Value, Equity, Transfers to Level 1, Amount |  |  |  | 2 |  |
Fair Value, Assets, Level 3 to Level 2 Transfers, Amount |  |  |  | 0 |  |
Fair Value, Assets, Level 2 to Level 1 Transfers, Amount |  |  |  | 0 |  |
Level 3 | Credit-Link Notes |  |  |  |  |  |
Level 3 CMO [Roll Forward] |  |  |  |  |  |
Total included in earnings |  |  |  | 2,775 |  |
Total included in other comprehensive income |  |  |  | 615 |  |
Proceeds from borrowings |  |  |  | 0 |  |
Repayments of borrowings |  |  |  | (2,072) |  |
Debt Securities Exercises and Settlements |  |  |  | 0 |  |
Fair Value, Equity, Transfers to Level 1, Amount |  |  |  | 0 |  |
Fair Value, Assets, Level 3 to Level 2 Transfers, Amount |  |  |  | 0 |  |
Level 3 | Corporate Debt Securities |  |  |  |  |  |
Level 3 CMO [Roll Forward] |  |  |  |  |  |
Total included in earnings |  |  |  | 0 |  |
Proceeds from borrowings |  |  |  | 0 |  |
Repayments of borrowings |  |  |  | 0 |  |
Debt Securities Exercises and Settlements |  |  |  | 0 |  |
Fair Value, Equity, Level 2 to Level 1 Transfers, Description |  |  |  | 8,750 |  |
Fair Value, Measurements, Recurring |  |  |  |  |  |
Level 3 CMO [Roll Forward] |  |  |  |  |  |
Equity warrants, Balance, beginning of period |  | 3,689 |  | 3,689 |  |
Equity warrants, Balance, end of period | 3,557 |  |  | 3,557 |  |
Fair Value, Measurements, Recurring | Level 3 |  |  |  |  |  |
Level 3 CMO [Roll Forward] |  |  |  |  |  |
Equity warrants, Balance, beginning of period |  | 3,689 |  | 3,689 |  |
Equity warrants, Balance, end of period | 3,557 |  |  | 3,557 |  |
Fair Value, Measurements, Recurring | Level 3 | Corporate Debt Securities |  |  |  |  |  |
Level 3 CMO [Roll Forward] |  |  |  |  |  |
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset Value | 14,119 |  |  | 14,119 |  |
Total included in other comprehensive income |  |  |  | (1,021) |  |
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset Value |  | $ 40,249 |  | 40,249 |  |
Fair Value, Measurements, Nonrecurring |  |  |  |  |  |
Level 3 CMO [Roll Forward] |  |  |  |  |  |
Assets | 31,827 |  |  | 31,827 |  | 9,824
Fair Value, Measurements, Nonrecurring | Non Purchased Credit Impaired Loans and Leases |  |  |  |  |  |
Level 3 CMO [Roll Forward] |  |  |  |  |  |
Assets | 29,027 |  |  | 29,027 |  | 6,402
Fair Value, Measurements, Nonrecurring | Level 3 |  |  |  |  |  |
Level 3 CMO [Roll Forward] |  |  |  |  |  |
Assets | 5,654 |  |  | 5,654 |  | 2,351
Fair Value, Measurements, Nonrecurring | Level 3 | Non Purchased Credit Impaired Loans and Leases |  |  |  |  |  |
Level 3 CMO [Roll Forward] |  |  |  |  |  |
Assets | 5,654 |  |  | 5,654 |  | $ 2,351
Fair Value, Measurements, Nonrecurring | Level 3 | No Discounts | Third party appraisals |  |  |  |  |  |
Level 3 CMO [Roll Forward] |  |  |  |  |  |
Assets | $ 5,654 |  |  | 5,654 |  |
Asset-backed | Fair Value, Measurements, Recurring | Level 3 |  |  |  |  |  |
Level 3 CMO [Roll Forward] |  |  |  |  |  |
available-for-sale arising during the period |  |  |  | (3,131) |  |
Fair Value, Assets, Level 3 to Level 2 Transfers, Amount |  |  |  | $ (33,859) |  |

X
- Definition Debt Securities Exercises and Settlements + References No definition available. + Details
Name: | pacw_DebtSecuritiesExercisesAndSettlements
Namespace Prefix: | pacw_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Fair Value, Assets, Level 3 to Level 2 Transfers, Amount + References No definition available. + Details
Name: | pacw_FairValueAssetsLevel3ToLevel2TransfersAmount
Namespace Prefix: | pacw_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Fair Value, Equity, Level 2 to Level 1 Transfers + References No definition available. + Details
Name: | pacw_FairValueEquityLevel2ToLevel1Transfers
Namespace Prefix: | pacw_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Fair Value, Equity, Transfers to Level 1, Amount + References No definition available. + Details
Name: | pacw_FairValueEquityTransfersToLevel1Amount
Namespace Prefix: | pacw_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Level 3 CMO [Roll Forward] + References No definition available. + Details
Name: | pacw_Level3CMORollForward
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 Stock and Warrants Transferred from Level 2 to Level 1, During the Period + References No definition available. + Details
Name: | pacw_StockAndWarrantsTransferredFromLevel2ToLevel1DuringThePeriod
Namespace Prefix: | pacw_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Fair value portion of probable future economic benefits obtained or controlled by an entity as a result of past transactions or events. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org//1943274/2147482106/820-10-50-2 + Details
Name: | us-gaap_AssetsFairValueDisclosure
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Amount of gain (loss) recognized in other comprehensive income (OCI) from asset measured at fair value on recurring basis using unobservable input (level 3). + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 820 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (c)(1a) -Publisher FASB -URI https://asc.fasb.org//1943274/2147482106/820-10-50-2 + Details
Name: | us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetGainLossIncludedInOtherComprehensiveIncomeLoss
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Fair value of financial instrument classified as an asset measured using unobservable inputs that reflect the entity's own assumption about the assumptions market participants would use in pricing. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (c) -SubTopic 10 -Topic 820 -Publisher FASB -URI https://asc.fasb.org//1943274/2147482106/820-10-50-2 + Details
Name: | us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetValue
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition The net realized gain (loss) on investments sold during the period, not including gains (losses) on securities separately or otherwise categorized as trading, available-for-sale, or held-to-maturity, which, for cash flow reporting, is a component of proceeds from investing activities. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Section 45 -Paragraph 28 -Subparagraph (b) -SubTopic 10 -Topic 230 -Publisher FASB -URI https://asc.fasb.org//1943274/2147482740/230-10-45-28 + Details
Name: | us-gaap_GainLossOnSaleOfInvestments
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Amount, after tax and before adjustment, of unrealized holding gain (loss) on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale). Excludes unrealized gain (loss) on investment in debt security measured at amortized cost (held-to-maturity) from transfer to available-for-sale. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 320 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 9 -Subparagraph (d) -Publisher FASB -URI https://asc.fasb.org//1943274/2147481800/320-10-50-9 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 220 -SubTopic 10 -Name Accounting Standards Codification -Section 45 -Paragraph 10A -Subparagraph (e) -Publisher FASB -URI https://asc.fasb.org//1943274/2147482790/220-10-45-10A Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Topic 220 -SubTopic 10 -Name Accounting Standards Codification -Section 45 -Paragraph 11 -Publisher FASB -URI https://asc.fasb.org//1943274/2147482790/220-10-45-11 + Details
Name: | us-gaap_OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition The aggregate amount paid by the entity to reacquire the right to purchase equity shares at a predetermined price, usually issued together with corporate debt. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 15 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org//1943274/2147482740/230-10-45-15 + Details
Name: | us-gaap_PaymentsForRepurchaseOfWarrants
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition The cash inflow during the period from additional borrowings in aggregate debt. Includes proceeds from short-term and long-term debt. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 230 -SubTopic 10 -Name Accounting Standards Codification -Section 45 -Paragraph 14 -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org//1943274/2147482740/230-10-45-14 + Details
Name: | us-gaap_ProceedsFromIssuanceOfDebt
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition The cash inflow from issuance of rights to purchase common shares at predetermined price (usually issued together with corporate debt). + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Section 45 -Paragraph 14 -Subparagraph (a) -SubTopic 10 -Topic 230 -Publisher FASB -URI https://asc.fasb.org//1943274/2147482740/230-10-45-14 + Details
Name: | us-gaap_ProceedsFromIssuanceOfWarrants
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition The net cash inflow or outflow in aggregate debt due to repayments and proceeds from additional borrowings. + References No definition available. + Details
Name: | us-gaap_ProceedsFromRepaymentsOfDebt
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition The cash inflow associated with the amount received from holders exercising their stock warrants. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 230 -SubTopic 10 -Name Accounting Standards Codification -Section 45 -Paragraph 14 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org//1943274/2147482740/230-10-45-14 + Details
Name: | us-gaap_ProceedsFromWarrantExercises
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Fair value portion of warrants not settleable in cash classified as equity. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org//1943274/2147482106/820-10-50-2 + Details
Name: | us-gaap_WarrantsNotSettleableInCashFairValueDisclosure
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

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

X
- Details
Name: | us-gaap_FairValueByFairValueHierarchyLevelAxis=us-gaap_FairValueInputsLevel3Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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

X
- Details
Name: | us-gaap_FairValueByMeasurementFrequencyAxis=us-gaap_FairValueMeasurementsRecurringMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FairValueByMeasurementFrequencyAxis=us-gaap_FairValueMeasurementsNonrecurringMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FairValueByAssetClassAxis=pacw_NonPurchasedCreditImpairedLoansAndLeasesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | pacw_UnobservableInputsAxis=pacw_NoDiscountsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_ValuationTechniqueAxis=pacw_ThirdPartyAppraisalsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_InvestmentTypeAxis=pacw_OthersecuritiesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |