XML 83 R72.htm IDEA: XBRL DOCUMENT v3.25.0.1

Loans and Allowance for Credit Losses - Allowance for Credit Losses on Loans by Category of Loan (Details) - USD ($)	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Financing Receivable Allowance For Credit Losses [Line Items]
Allowance for credit losses on loans, beginning balance	$ 332,362,000	$ 281,576,000	$ 286,380,000
Allowance on loans purchased with credit deterioration	26,078,000	76,793,000
Provision for credit losses	7,923,000	11,984,000
Charge-offs	(20,239,000)	(42,784,000)	(8,523,000)
Recoveries	5,681,000	4,793,000	3,719,000
Net charge-offs	(14,558,000)	(37,991,000)	(4,804,000)
Allowance for credit losses on loans, ending balance	351,805,000	332,362,000	281,576,000
Construction, Land Development and Other Land Loans [Member]
Financing Receivable Allowance For Credit Losses [Line Items]
Charge-offs	(781,000)
Agriculture [Member]
Financing Receivable Allowance For Credit Losses [Line Items]
Allowance for credit losses on loans, beginning balance	11,380,000	7,699,000	7,759,000
Allowance on loans purchased with credit deterioration	14,309,000	2,914,000
Provision for credit losses	2,130,000	683,000	(67,000)
Charge-offs	(636,000)	(114,000)	(274,000)
Recoveries	510,000	198,000	281,000
Net charge-offs	(126,000)	84,000	7,000
Allowance for credit losses on loans, ending balance	27,693,000	11,380,000	7,699,000
Real Estate [Member] | Construction, Land Development and Other Land Loans [Member]
Financing Receivable Allowance For Credit Losses [Line Items]
Allowance for credit losses on loans, beginning balance	87,775,000	78,853,000	58,897,000
Allowance on loans purchased with credit deterioration	942,000	16,878,000
Provision for credit losses	(9,954,000)	(7,929,000)	20,372,000
Charge-offs		(77,000)	(435,000)
Recoveries	2,000	50,000	19,000
Net charge-offs	(779,000)	(27,000)	(416,000)
Allowance for credit losses on loans, ending balance	77,984,000	87,775,000	78,853,000
Real Estate [Member] | 1-4 Family [Member]
Financing Receivable Allowance For Credit Losses [Line Items]
Allowance for credit losses on loans, beginning balance	77,652,000	60,795,000	56,710,000
Allowance on loans purchased with credit deterioration	344,000	1,590,000
Provision for credit losses	4,210,000	14,999,000	3,883,000
Charge-offs	(1,555,000)	(144,000)	(168,000)
Recoveries	84,000	412,000	370,000
Net charge-offs	(1,471,000)	268,000	202,000
Allowance for credit losses on loans, ending balance	80,735,000	77,652,000	60,795,000
Real Estate [Member] | Commercial Real Estate (Includes Multi-Family Residential) [Member]
Financing Receivable Allowance For Credit Losses [Line Items]
Allowance for credit losses on loans, beginning balance	88,664,000	66,272,000	75,005,000
Allowance on loans purchased with credit deterioration	4,306,000	25,292,000
Provision for credit losses	(601,000)	14,216,000	(7,873,000)
Charge-offs	(1,290,000)	(17,158,000)	(870,000)
Recoveries	1,068,000	42,000	10,000
Net charge-offs	(222,000)	(17,116,000)	(860,000)
Allowance for credit losses on loans, ending balance	92,147,000	88,664,000	66,272,000
Commercial and Industrial [Member]
Financing Receivable Allowance For Credit Losses [Line Items]
Allowance for credit losses on loans, beginning balance	59,832,000	62,319,000	80,412,000
Allowance on loans purchased with credit deterioration	6,176,000	30,095,000
Provision for credit losses	6,266,000	(16,177,000)	(18,934,000)
Charge-offs	(9,706,000)	(19,603,000)	(1,273,000)
Recoveries	2,932,000	3,198,000	2,114,000
Net charge-offs	(6,774,000)	(16,405,000)	841,000
Allowance for credit losses on loans, ending balance	65,500,000	59,832,000	62,319,000
Consumer and Other [Member]
Financing Receivable Allowance For Credit Losses [Line Items]
Allowance for credit losses on loans, beginning balance	7,059,000	5,638,000	7,597,000
Allowance on loans purchased with credit deterioration	1,000	24,000
Provision for credit losses	5,872,000	6,192,000	2,619,000
Charge-offs	(6,271,000)	(5,688,000)	(5,503,000)
Recoveries	1,085,000	893,000	925,000
Net charge-offs	(5,186,000)	(4,795,000)	(4,578,000)
Allowance for credit losses on loans, ending balance	$ 7,746,000	$ 7,059,000	$ 5,638,000

X

- Definition

Allowance for loan and lease loss, recovery (write-offs).

+ References

No definition available.

+ Details

Name:	pb_AllowanceForLoanAndLeaseLossRecoveryWriteoffs
Namespace Prefix:	pb_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

X

- Definition

Allowance for loans and lease losses writeoffs.

+ References

No definition available.

+ Details

Name:	pb_AllowanceForLoansAndLeaseLossesWriteoffs
Namespace Prefix:	pb_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

X

- Definition

Allowance for loans and lease losses writeoffs net.

+ References

No definition available.

+ Details

Name:	pb_AllowanceForLoansAndLeaseLossesWriteoffsNet
Namespace Prefix:	pb_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

X

- Definition

Loans and lease receivable allowance.

+ References

No definition available.

+ Details

Name:	pb_LoansAndLeaseReceivableAllowance
Namespace Prefix:	pb_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

X

- Definition

Provision for loans and lease losses.

+ References

No definition available.

+ Details

Name:	pb_ProvisionForLoansAndLeaseLosses
Namespace Prefix:	pb_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

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
-Name Regulation S-K (SK)
-Number 229
-Section 1405
-Paragraph c
-Publisher SEC

Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 326
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 13
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479319/326-20-50-13

+ Details

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

X

- Definition

Amount at purchase price of financing receivable purchased with credit deterioration.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 326
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 19
-Subparagraph (a)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479319/326-20-50-19

+ Details

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

X

- Details

Name:	us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis=pb_ConstructionLandDevelopmentAndOtherLandLoansMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis=pb_AgricultureAndAgricultureRealEstateIncludesFarmlandMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_EquitySecuritiesByIndustryAxis=us-gaap_RealEstateSectorMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis=pb_FamilyResidential14IncludesHomeEquityMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis=pb_CommercialRealEstateIncludesMultifamilyResidentialMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_EquitySecuritiesByIndustryAxis=us-gaap_CommercialAndIndustrialSectorMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_EquitySecuritiesByIndustryAxis=pb_ConsumerAndOtherMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: