P3 Health Partners Inc. Annual report pursuant to Section 13 and 15(d)

Fair Value Measurements and Hierarchy - Level 3 Measurement (Details) - USD ($)		1 Months Ended	2 Months Ended	9 Months Ended	11 Months Ended	12 Months Ended
	Dec. 02, 2021	Dec. 31, 2021	Nov. 30, 2021	Sep. 30, 2021	Dec. 02, 2021	Dec. 31, 2020	Dec. 31, 2019
Class of Warrant or Right [Line Items]
Financial Designation, Predecessor and Successor [Fixed List]		Successor			Predecessor	Predecessor	Predecessor
Fair Value, Liability, Recurring Basis, Unobservable Input Reconciliation, Gain (Loss), Statement of Income or Comprehensive Income [Extensible Enumeration]	Mark-to-Market Adjustment of Stock Warrants	Mark-to-Market Adjustment of Stock Warrants	Mark-to-Market Adjustment of Stock Warrants	Mark-to-Market Adjustment of Stock Warrants		Mark-to-Market Adjustment of Stock Warrants
Private Placement Warrants \| Level 3
Class of Warrant or Right [Line Items]
Beginning Balance		$ 793,650
Mark-to-Market Adjustment for Stock Warrants		(291,374)
Ending Balance	$ 793,650	502,276			$ 793,650
Class D Warrants \| Level 3
Class of Warrant or Right [Line Items]
Beginning Balance		$ 13,981,474		$ 6,316,605	6,316,605
Issuance of Class D Warrants						$ 6,316,605
Mark-to-Market Adjustment for Stock Warrants					7,664,869
Ending Balance	$ 13,981,474				$ 13,981,474	$ 6,316,605