Significant Accounting Policies - Patient Fees Receivable (Details) - USD ($) $ in Millions	Dec. 31, 2023	Dec. 31, 2022
Accounting Policies [Abstract]
Patient fees receivable	$ 0.7	$ 0.8

The carrying amount of clinic fees and insurance receivables, net due within one year or the normal operating cycle, if longer.

No definition available.

Name:	piii_PatientFeesReceivableCurrent
Namespace Prefix:	piii_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant