Earnings Per Share - Schedule of Computation of Basic and Diluted EPS (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended				9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Jun. 30, 2022	Mar. 31, 2022	Sep. 30, 2023	Sep. 30, 2022
Numerator:
Net Income (Loss)	$ (8,416)	$ 5,617	$ 11,154	$ 7,792	$ (6,048)	$ 24,563
Net (loss)/ income attributable to noncontrolling interests in P10 Intermediate	(334)	0			169	0
Numerator for (loss)/ earnings per share assuming dilution	$ (8,750)	$ 5,617			$ (5,879)	$ 24,563
Denominator:
Denominator for basic calculation - Weighted-average shares	116,235	117,210			116,134	117,210
Weighted shares assumed upon exercise of partnership units					0
Weighted shares assumed upon exercise of stock options		4,322			0	4,152
Denominator for (loss)/ earnings per share assuming dilution	116,235	121,532			116,134	121,362
(Loss)/ earnings per share - basic	$ (0.07)	$ 0.05			$ (0.05)	$ 0.21
(Loss)/ earnings per share - diluted	$ (0.07)	$ 0.05			$ (0.05)	$ 0.2