Basic and Diluted Loss Per Share - Summary of Basic Net Income (Loss) Per Share of Class A and Class B Common Stock (Detail) - USD ($) $ in Thousands	3 Months Ended				9 Months Ended
	Sep. 30, 2024	Jun. 30, 2024	Mar. 31, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023
Numerator:
Net income (loss)	$ (105,817)	$ 15,848	$ 7,095	$ (6,995)	$ (82,874)	$ 23,161
Less: Net income attributable to Guardian Pharmacy, LLC before Corporate Reorganization	9,350			(11,290)	22,760	11,884
Less: Net income attributable to noncontrolling interests	6,823			$ 4,295	16,356	$ 11,277
Net income (loss) attributable to Guardian Pharmacy Services, Inc.	$ (121,990)				$ (121,990)