Represents the conversion ratio of common stock.

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- Definition

Represents the number of shares of stock issued during the period in exchange for noncontrolling interest pursuant to a reorganization.

+ References

No definition available.

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Represents the value of stock issued during the period in exchange for noncontrolling interest pursuant to a reorganization.

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No definition available.

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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.

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No definition available.

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The equity interest of noncontrolling shareholders, partners or other equity holders in consolidated entity.

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No definition available.

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- Definition

The portion of profit or loss for the period, net of income taxes, which is attributable to the parent.

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The number of shares issued during the period upon the conversion of units. An example of a convertible unit is an umbrella partnership real estate investment trust unit (UPREIT unit).

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Value of stock issued during the period upon the conversion of units. An example of a convertible unit is an umbrella partnership real estate investment trust unit (UPREIT unit).

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Noncontrolling Interest (Details) - USD ($) shares in Thousands, $ in Thousands		3 Months Ended								12 Months Ended
	Nov. 01, 2018	Dec. 31, 2018	Sep. 30, 2018	Jun. 30, 2018	Mar. 31, 2018	Dec. 31, 2017	Sep. 30, 2017	Jun. 30, 2017	Mar. 31, 2017	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Net income and the effects of changes in noncontrolling interest
Net income attributable to PennyMac Financial Services, Inc. common stockholders		$ 38,749	$ 14,489	$ 17,837	$ 16,619	$ 62,318	$ 17,081	$ 10,479	$ 10,879	$ 87,694	$ 100,757	$ 66,079
Shares of Class A common stock of PennyMac Financial Services, Inc. issued pursuant to exchange of Class A units of Private National Mortgage Acceptance Company, LLC by noncontrolling interest unitholders and issued as equity compensation (in shares)										1,635	1,608	301
Common stock issued for exchange of noncontrolling interest pursuant to a reorganization										$ (326,653)
Exchange of Class A unit of Private National Mortgage Acceptance Company, LLC for common stock of PennyMac Financial Services, Inc. pursuant to a reorganization, net of income tax effect (in shares)										52,263
New PFSI \| Class A Unit
Noncontrolling Interest [Line Items]
Common stock conversion ratio (as a percent)	100.00%
New PFSI \| Common Stock
Noncontrolling Interest [Line Items]
Common stock conversion ratio (as a percent)	1.00%
Private National Mortgage Acceptance Company, LLC
Net income and the effects of changes in noncontrolling interest
Noncontrolling interest in Private National Mortgage Acceptance Company, LLC (as a percent)						69.20%					69.20%
Noncontrolling interest
Net income and the effects of changes in noncontrolling interest
Exchange of Class A units of Private National Mortgage Acceptance Company, LLC to Class A common stock of PennyMac Financial Services, Inc.										$ 33,156	$ 27,119	$ 6,877
Common stock issued for exchange of noncontrolling interest pursuant to a reorganization										(1,390,973)
Additional paid-in-capital and Par
Net income and the effects of changes in noncontrolling interest
Common stock issued for exchange of noncontrolling interest pursuant to a reorganization										$ 1,064,320