Name:	pfsi_OtherAssetsCapitalizedSoftwareNet
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Data Type:	xbrli:monetaryItemType
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Period Type:	instant

Not available.

No definition available.

Name:	pfsi_OtherAssetsCarryingValueAbstract
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Data Type:	xbrli:stringItemType
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Period Type:	duration

Amount net accumulated depreciation, depletion and amortization of physical assets used in the normal conduct of business and not intended for resale recorded in other assets. Examples include, but are not limited to, land, buildings, machinery and equipment, office equipment, and furniture and fixtures.

No definition available.

Name:	pfsi_OtherAssetsFurnitureAndFixturesAndEquipmentAndBuildingImprovementsNet
Namespace Prefix:	pfsi_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

The amount of cash or securities placed with a broker or counterparty as security for a trading or derivatives securities position which was partially obtained with funds provided by the broker dealer recorded in other assets.

No definition available.

Name:	pfsi_OtherAssetsMarginDepositAssets
Namespace Prefix:	pfsi_
Data Type:	xbrli:monetaryItemType
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Period Type:	instant

Aggregate amount of other assets pledged to creditors.

No definition available.

Name:	pfsi_OtherAssetsPledgedToSecureNotePayable
Namespace Prefix:	pfsi_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

Represents the period-end balance of the portion of real estate acquired in settlement of loans recorded in other assets.

No definition available.

Name:	pfsi_OtherAssetsRealEstateAcquiredInSettlementOfLoans
Namespace Prefix:	pfsi_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

Not available.

No definition available.

Name:	pfsi_OtherAssetsSecuringRevolvingLineOfCreditAbstract
Namespace Prefix:	pfsi_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

Aggregate amount of capitalized computer software pledged to creditors.

No definition available.

Name:	pfsi_PledgedAssetsSeparatelyReportedCapitalizedComputerSoftwarePledgedAsCollateral
Namespace Prefix:	pfsi_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

Aggregate amount of property, plant, and equipment pledged to creditors.

No definition available.

Name:	pfsi_PledgedAssetsSeparatelyReportedPropertyPlantAndEquipmentPledgedAsCollateral
Namespace Prefix:	pfsi_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

The carrying amount of the asset transferred to a third party to serve as a deposit, which typically serves as security against failure by the transferor to perform under terms of an agreement.

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

Amount of assets classified as other.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(17))
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-03(10))
-URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878

Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 944
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.7-03(a)(10))
-URI http://asc.fasb.org/extlink&oid=119400593&loc=d3e572229-122910

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Amount of other miscellaneous assets.

No definition available.