Adjustment resulting from changes in unaccreted market value to loan balance.

No definition available.

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

- 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

No definition available.

+ Details

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Balance Type:	na
Period Type:	duration

- Definition

Amount of allowance for credit loss on financing receivable. Excludes allowance for financing receivable covered under loss sharing agreement.

+ References

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+ Details

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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Amount, after valuation allowance, of financing receivable held for sale and not part of disposal group. Excludes loan covered under loss sharing agreement and loan classified as investment in debt security.

+ References

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+ Details

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Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Amount, before allowance for credit loss, of financing receivable.

+ References

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+ Details

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

- Definition

Amount, after allowance for credit loss, of financing receivable. Excludes financing receivable covered under loss sharing agreement.

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Loans Held for Investment - Composition of Loan Portfolio (Details) - USD ($) $ in Thousands	Mar. 31, 2021	Dec. 31, 2020	Mar. 31, 2020	Dec. 31, 2019
Loans Held for Investment
Loans held for investment	$ 13,117,392	$ 13,236,433
Allowance for credit losses for loans held for investment	(266,999)	(268,018)	$ (115,422)	$ (35,698)
Loans held for investment, net	12,850,393	12,968,415
Loans held for sale, at lower of cost or fair value	7,311	601
Unaccreted mark-to-market discount	103,900	113,800
Investor loans secured by real estate
Loans Held for Investment
Loans held for investment	8,412,216	8,225,765
Investor loans secured by real estate \| CRE non-owner-occupied
Loans Held for Investment
Loans held for investment	2,729,785	2,675,085
Allowance for credit losses for loans held for investment	(45,545)	(49,176)	(15,896)	(1,899)
Investor loans secured by real estate \| Multifamily
Loans Held for Investment
Loans held for investment	5,309,592	5,171,356
Allowance for credit losses for loans held for investment	(79,815)	(62,534)	(14,722)	(729)
Investor loans secured by real estate \| Construction and land
Loans Held for Investment
Loans held for investment	316,458	321,993
Allowance for credit losses for loans held for investment	(13,263)	(12,435)	(9,222)	(4,484)
Investor loans secured by real estate \| SBA secured by real estate
Loans Held for Investment
Loans held for investment	56,381	57,331
Allowance for credit losses for loans held for investment	(5,141)	(5,159)	(935)	(1,915)
Business loans secured by real estate
Loans Held for Investment
Loans held for investment	2,444,756	2,541,577
Business loans secured by real estate \| SBA secured by real estate
Loans Held for Investment
Loans held for investment	73,967	79,595
Allowance for credit losses for loans held for investment	(6,451)	(6,567)	(4,044)	(2,119)
Business loans secured by real estate \| CRE owner-occupied
Loans Held for Investment
Loans held for investment	2,029,984	2,114,050
Allowance for credit losses for loans held for investment	(41,594)	(50,517)	(26,793)	(2,781)
Business loans secured by real estate \| Franchise real estate secured
Loans Held for Investment
Loans held for investment	340,805	347,932
Allowance for credit losses for loans held for investment	(10,876)	(11,451)	(7,503)	(592)
Commercial loans
Loans Held for Investment
Loans held for investment	2,070,047	2,229,588
Commercial loans \| Commercial and industrial
Loans Held for Investment
Loans held for investment	1,656,098	1,768,834
Allowance for credit losses for loans held for investment	(43,373)	(46,964)	(15,742)	(13,857)
Commercial loans \| Franchise non-real estate secured
Loans Held for Investment
Loans held for investment	399,041	444,797
Allowance for credit losses for loans held for investment	(18,903)	(20,525)	(16,616)	(5,816)
Commercial loans \| SBA non-real estate secured
Loans Held for Investment
Loans held for investment	14,908	15,957
Allowance for credit losses for loans held for investment	(890)	(995)	(516)	(445)
Retail loans
Loans Held for Investment
Loans held for investment	190,373	239,503
Retail loans \| Single family residential
Loans Held for Investment
Loans held for investment	184,049	232,574
Allowance for credit losses for loans held for investment	(822)	(1,204)	(1,137)	(655)
Retail loans \| Consumer
Loans Held for Investment
Loans held for investment	6,324	6,929
Allowance for credit losses for loans held for investment	$ (326)	$ (491)	$ (2,296)	$ (406)