Name:	ppbi_AvailableForSaleSecuritiesContinuousUnrealizedLossPositionLessThanTwelveMonthsNumber
Namespace Prefix:	ppbi_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	instant

Represents the number of investments in debt and equity securities in an unrealized loss position which re categorized neither as held-to-maturity nor trading securities.

No definition available.

Name:	ppbi_AvailableForSaleSecuritiesContinuousUnrealizedLossPositionNumber
Namespace Prefix:	ppbi_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	instant

No definition available.

Name:	ppbi_AvailableForSaleSecuritiesContinuousUnrealizedLossPositionTwelveMonthsOrLongerNumber
Namespace Prefix:	ppbi_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	instant

Available-for-sale And Held-to-maturity, Securities in Unrealized Loss Positions, Qualitative Disclosure, Number of Positions

No definition available.

Name:	ppbi_AvailableforsaleAndHeldtomaturitySecuritiesinUnrealizedLossPositionsQualitativeDisclosureNumberofPositions
Namespace Prefix:	ppbi_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	instant

Available-for-sale And Held-to-maturity, Securities in Unrealized Loss Positions, Qualitative Disclosure, Number of Positions, Greater than or Equal to One Year

No definition available.

Name:	ppbi_AvailableforsaleAndHeldtomaturitySecuritiesinUnrealizedLossPositionsQualitativeDisclosureNumberofPositionsGreaterthanorEqualtoOneYear
Namespace Prefix:	ppbi_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	instant

Available-for-sale And Held-to-maturity, Securities in Unrealized Loss Positions, Qualitative Disclosure, Number of Positions, Less than One Year

No definition available.

Name:	ppbi_AvailableforsaleAndHeldtomaturitySecuritiesinUnrealizedLossPositionsQualitativeDisclosureNumberofPositionsLessthanOneYear
Namespace Prefix:	ppbi_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	instant

Available-for-sale Securities And Held-To-Maturity, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss

No definition available.

Name:	ppbi_AvailableforsaleSecuritiesAndHeldToMaturityContinuousUnrealizedLossPositionLessthan12MonthsAccumulatedLoss
Namespace Prefix:	ppbi_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

Available-for-sale Securities And Held-to-Maturity, Continuous Unrealized Loss Position, Fair Value

No definition available.

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

Available-for-sale Securities And Held-to-maturity, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss

No definition available.

Name:	ppbi_AvailableforsaleSecuritiesAndHeldtomaturityContinuousUnrealizedLossPosition12MonthsorLongerAccumulatedLoss
Namespace Prefix:	ppbi_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

Available-for-sale Securities And Held-to-maturity, Continuous Unrealized Loss Position, Accumulated Loss

No definition available.

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

Available-for-sale Securities And Held-to-maturity, Continuous Unrealized Loss Position, Less than Twelve Months, Fair Value

No definition available.

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

Available-for-sale Securities And Held-to-maturity, Continuous Unrealized Loss Position, Twelve Months or Longer, Fair Value

No definition available.

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

Held-to-maturity, Securities in Unrealized Loss Positions, Less Than Twelve Months, Qualitative Disclosure, Number of Positions

No definition available.

Name:	ppbi_HeldtomaturitySecuritiesinUnrealizedLossPositionsLessThanTwelveMonthsQualitativeDisclosureNumberofPositions
Namespace Prefix:	ppbi_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	instant

Held-to-maturity, Securities in Unrealized Loss Positions, Twelve Months Or Longer Qualitative Disclosure, Number of Positions

No definition available.

Name:	ppbi_HeldtomaturitySecuritiesinUnrealizedLossPositionsTwelveMonthsOrLongerQualitativeDisclosureNumberofPositions
Namespace Prefix:	ppbi_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	instant

- References

No definition available.

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

Amount of accumulated unrealized loss on investments in debt and equity securities classified as available-for-sale that have been in a continuous loss position for twelve months or longer.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 320
-SubTopic 10
-Section 50
-Paragraph 6
-Subparagraph (a)(2)
-URI http://asc.fasb.org/extlink&oid=82897076&loc=d3e27290-111563

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 320
-SubTopic 10
-Section 50
-Paragraph 7
-URI http://asc.fasb.org/extlink&oid=82897076&loc=d3e27337-111563

Name:	us-gaap_AvailableForSaleSecuritiesContinuousUnrealizedLossPosition12MonthsOrLongerAccumulatedLoss
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

Amount of accumulated unrealized loss on investments in debt and equity securities classified as available-for-sale in a continuous loss position.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 320
-SubTopic 10
-Section 50
-Paragraph 7
-URI http://asc.fasb.org/extlink&oid=82897076&loc=d3e27337-111563

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 320
-SubTopic 10
-Section 50
-Paragraph 6
-Subparagraph (a)(2)
-URI http://asc.fasb.org/extlink&oid=82897076&loc=d3e27290-111563

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

This item represents the aggregate fair value of investments in debt and equity securities in an unrealized loss position which are categorized neither as held-to-maturity nor trading securities.

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

Amount of accumulated unrealized loss on investments in debt and equity securities classified as available-for-sale that have been in a continuous loss position for less than twelve months.

Name:	us-gaap_AvailableForSaleSecuritiesContinuousUnrealizedLossPositionLessThan12MonthsAccumulatedLoss
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

This item represents the aggregate fair value of investments in debt and equity securities categorized neither as held-to-maturity nor trading securities that have been in a continuous unrealized loss position for less than twelve months.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 320
-SubTopic 10
-Section 50
-Paragraph 7
-URI http://asc.fasb.org/extlink&oid=82897076&loc=d3e27337-111563

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 320
-SubTopic 10
-Section 50
-Paragraph 6
-Subparagraph (a)(1)
-URI http://asc.fasb.org/extlink&oid=82897076&loc=d3e27290-111563

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

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 320
-SubTopic 10
-Section 50
-Paragraph 6
-Subparagraph (a)(1)
-URI http://asc.fasb.org/extlink&oid=82897076&loc=d3e27290-111563

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 320
-SubTopic 10
-Section 50
-Paragraph 7
-URI http://asc.fasb.org/extlink&oid=82897076&loc=d3e27337-111563

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

- References

No definition available.

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

- References

No definition available.

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

Amount of accumulated unrealized loss on investments in debt securities classified as held-to-maturity that have been in a continuous loss position for twelve months or longer.

Name:	us-gaap_HeldToMaturitySecuritiesContinuousUnrealizedLossPosition12MonthsOrLongerAccumulatedLoss
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

Amount of accumulated unrealized loss on investments in debt securities classified as held-to-maturity in a continuous loss position.

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

This item represents the fair value of securities categorized as held-to-maturity which are in an unrealized loss position.

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

Amount of accumulated unrealized loss on investments in debt securities classified as held-to-maturity that have been in a continuous loss position for less than twelve months.

Name:	us-gaap_HeldToMaturitySecuritiesContinuousUnrealizedLossPositionLessThan12MonthsAccumulatedLoss
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

This item represents the fair value of securities categorized as held-to-maturity that have been in a continuous unrealized loss position for less than twelve months.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 320
-SubTopic 10
-Section 50
-Paragraph 6
-Subparagraph (a)(1)
-URI http://asc.fasb.org/extlink&oid=82897076&loc=d3e27290-111563

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 320
-SubTopic 10
-Section 50
-Paragraph 7
-URI http://asc.fasb.org/extlink&oid=82897076&loc=d3e27337-111563

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

This item represents the fair value of securities categorized as held-to-maturity securities that have been in a continuous unrealized loss position for twelve months or longer.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 320
-SubTopic 10
-Section 50
-Paragraph 7
-URI http://asc.fasb.org/extlink&oid=82897076&loc=d3e27337-111563

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 320
-SubTopic 10
-Section 50
-Paragraph 6
-Subparagraph (a)(1)
-URI http://asc.fasb.org/extlink&oid=82897076&loc=d3e27290-111563

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

Disclosure regarding factors used to determine that the impairment of securities categorized as held-to-maturity where cost exceeds fair value is not an other than temporary impairment (OTTI). This item contains disclosure of the number of investment positions in the held-to-maturity investments determined to be temporarily impaired.

Name:	us-gaap_HeldToMaturitySecuritiesInUnrealizedLossPositionsQualitativeDisclosureNumberOfPositions
Namespace Prefix:	us-gaap_
Data Type:	xbrli:decimalItemType
Balance Type:	na
Period Type:	instant

Name:	us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis=us-gaap_AgencySecuritiesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Name:	us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis=us-gaap_CorporateDebtSecuritiesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Name:	us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis=us-gaap_MunicipalBondsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Name:	us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis=us-gaap_CollateralizedMortgageObligationsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: