Name:	ppbi_CertainLoansAcquiredInTransferNotAccountedForAsDebtSecuritiesNonaccrualStatusCarryingAmountNet
Namespace Prefix:	ppbi_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

Represents the number of areas related to financing receivables where the entity's credit quality is maintained and credit risk managed.

No definition available.

Name:	ppbi_FinancingReceivableCreditQualityAndCreditRiskManagementAreaNumber
Namespace Prefix:	ppbi_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	duration

Represents the number of subcategories established within pass grade to stratify risk associated with pass loans.

No definition available.

Name:	ppbi_FinancingReceivableCreditQualityPassGradeNumber
Namespace Prefix:	ppbi_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	duration

Amount of unpaid principal balance of impaired financing receivables that are on nonaccrual status as of the balance sheet date with related allowance for credit losses and without related allowance for credit losses.

No definition available.

Name:	ppbi_ImpairedFinancingReceivableUnpaidPrincipalBalanceNonaccrualStatus
Namespace Prefix:	ppbi_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

Represents the outstanding balance, as of the balance sheet date, of loans serviced for others.

No definition available.

Name:	ppbi_LoansToOthersOutstandingBalance
Namespace Prefix:	ppbi_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

Represents the amount up to which the bank can provide loans on secured basis to one borrower as per current regulations.

No definition available.

Name:	ppbi_SecuredLoansToOneBorrowerLimit
Namespace Prefix:	ppbi_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

Represents the outstanding balance as of the balance sheet date of loans to one borrower of secured credit.

No definition available.

Name:	ppbi_SecuredLoansToOneBorrowerOutstandingBalance
Namespace Prefix:	ppbi_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

Represents the amount up to which the bank can provide loans on unsecured basis to one borrower as per current regulations.

No definition available.

Name:	ppbi_UnsecuredLoansToOneBorrowerLimit
Namespace Prefix:	ppbi_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

The undiscounted sum of all amounts, including amounts deemed principal, interest, fees, penalties, and other under the loan, owed to the investor at the reporting date, whether or not currently due and whether or not any such amounts have been written or charged off by the investor. This relates to commercial loans not accounted for as debt securities, with evidence of deterioration of credit quality since origination that were acquired by completion of a transfer for which it is probable, at acquisition, that the investor will be unable to collect all contractually required payments receivable.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 30
-Section 50
-Paragraph 2
-Subparagraph (a)(1)
-URI http://asc.fasb.org/extlink&oid=82894903&loc=d3e15032-111544

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 30
-Section 15
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=82894507&loc=d3e13503-111538

Name:	us-gaap_CertainLoansAcquiredInTransferNotAccountedForAsDebtSecuritiesCommercialOutstandingBalance
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

Post-modification amount of investment in financing receivables modified by troubled debt restructurings.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 50
-Paragraph 33
-URI http://asc.fasb.org/extlink&oid=84173941&loc=SL6953676-111524

Name:	us-gaap_FinancingReceivableModificationsPostModificationRecordedInvestment2
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

Recorded investment in financing receivables that are 90 days or more past due and still accruing.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 50
-Paragraph 7
-Subparagraph (d)
-URI http://asc.fasb.org/extlink&oid=84173941&loc=d3e5111-111524

Name:	us-gaap_FinancingReceivableRecordedInvestment90DaysPastDueAndStillAccruing
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

Recorded investment of consumer mortgage loan receivables secured by residential real estate properties for which formal foreclosure proceedings are in process.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 50
-Paragraph 35
-URI http://asc.fasb.org/extlink&oid=84173941&loc=SL49126937-111524

Name:	us-gaap_MortgageLoansInProcessOfForeclosureAmount
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- References

No definition available.

Name:	us-gaap_ReceivablesAbstract
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

Aggregate amount of servicing assets that are subsequently measured at fair value and servicing assets that are subsequently measured using the amortization method.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 860
-SubTopic 50
-Section 45
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=6469459&loc=d3e122501-111745