Earnings Per Share - Schedule of Computation of Basic and Diluted EPS (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Numerator:
Numerator for basic calculation - Net (loss)/income attributable to P10	$ (7,133)	$ 29,206	$ 9,174
Net (loss)/income attributable to noncontrolling interests in P10 Intermediate	(639)	193	0
Numerator for (loss)/earnings per share assuming dilution	$ (7,772)	$ 29,399	$ 9,174
Denominator:
Denominator for basic calculation - Weighted-average shares outstanding, basic attributable to P10	116,104	116,751	72,660
Weighted shares assumed upon exercise of partnership units	0	979	0
Weighted shares assumed upon exercise of stock options	0	3,924	39,670
Denominator for (loss)/earnings per share assuming dilution	116,104	121,655	112,332
(Loss)/earnings per share - basic	$ (0.06)	$ 0.25	$ 0.13
(Loss)/earnings per share - diluted	(0.06)	0.24	0.08
Class A Common Stock
Denominator:
(Loss)/earnings per share - basic	(0.06)	0.25	0.13
(Loss)/earnings per share - diluted	(0.06)	0.24	0.08
Class B Common Stock
Denominator:
(Loss)/earnings per share - basic	(0.06)	0.25	0.13
(Loss)/earnings per share - diluted	$ (0.06)	$ 0.24	$ 0.08