FINANCE RECEIVABLES (Details 3)	12 Months Ended
Sep. 30, 2017 USD ($) contractual_payment	Sep. 30, 2016 USD ($)
Credit quality and accrued interest on financial receivable
Number of payments past due \| contractual_payment	3
Installment not received on which interest accrual is suspended, period	92 days
Percentage of contractual payment not received for 30 days after last full payment	95.00%
Finance receivables greater than 90 days past due accruing interest	$ 0	$ 0
Accrued interest receivable for nonperforming loans
Finance receivables	242,684,000	280,947,000
Non-performing (90 days delinquent)
Accrued interest receivable for nonperforming loans
Finance receivables	$ 15,517,000	$ 16,113,000
Non-performing loans as a percent of gross balance	6.39%	5.74%
Performing loans
Accrued interest receivable for nonperforming loans
Finance receivables	$ 227,167,000	$ 264,834,000
Military loans \| Non-performing (90 days delinquent)
Accrued interest receivable for nonperforming loans
Total accrued interest receivable	900,000	1,000,000
Finance receivables	$ 15,500,000	$ 16,100,000

No definition available.

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- Definition

Represents the period during which installment is not received on which interest accrual is suspended.

+ References

No definition available.

+ Details

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- Definition

Financing Receivable, Number of Payments Past Due

+ References

No definition available.

+ Details

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Namespace Prefix:	pfsi_
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- Definition

Represents non-performing loans, expressed as a percentage of total gross loans.

+ References

No definition available.

+ Details

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- Definition

Represents the percentage of contractual payment not received for specified period after the last full payment.

+ References

No definition available.

+ Details

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- Definition

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

+ References

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

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- 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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- Definition

Carrying amount as of the balance sheet date of interest earned but not received. Also called accrued interest or accrued interest receivable.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.8)
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

+ Details

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- Definition

Amount representing an agreement for an unconditional promise by the maker to pay the entity (holder) a definite sum of money at a future date. Such amount may include accrued interest receivable in accordance with the terms of the note. The note also may contain provisions and related items including a discount or premium, payable on demand, secured, or unsecured, interest bearing or noninterest bearing, among a myriad of other features and characteristics. Excludes amounts related to receivables held-for-sale.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-03.10(3))
-URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878

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- Details

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- Details

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- Details

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