Condensed Consolidated Statements of Changes in Members' Equity and Stockholders' Equity - USD ($) $ in Thousands	Total	Class A [Member]	Class B [Member]	Common Stock [Member] Class A [Member]	Common Stock [Member] Class B [Member]	Additional Paid-in capital [Member]	Retained Earnings [Member]	Non-Controlling Interests [Member]
Beginning Balance at Dec. 31, 2024	$ 149,976			$ 9	$ 54	$ 125,484	$ 17,124	$ 7,305
Beginning Balance (Shares) at Dec. 31, 2024				9,200,000	54,087,158
Contributions	135							135
Distributions	(135)					0		(135)
Net income attributable to Guardian Pharmacy Services, Inc.	9,448	$ 1,490	$ 7,958				9,448
Net income (loss) attributable to non-controlling interest	(175)							(175)
Share-based compensation forfeitures (Shares)				0	(516)
Share-based compensation forfeitures	(1)					(1)
Share-based compensation expense	3,969					3,969
Conversion of Guardian Pharmacy, LLC common units into Class B common stock of Guardian Pharmacy Services, Inc. (Shares)				13,519,946	(13,519,946)
Conversion of Guardian Pharmacy, LLC common units into Class B common stock of Guardian Pharmacy Services, Inc.				$ 14	$ (14)
Ending Balance at Mar. 31, 2025	163,217			$ 23	$ 40	129,452	26,572	7,130
Ending Balance (Shares) at Mar. 31, 2025				22,719,946	40,566,696
Beginning Balance at Dec. 31, 2025	217,924			$ 36	$ 27	139,353	66,343	12,165
Beginning Balance (Shares) at Dec. 31, 2025				36,253,744	27,066,890
Contributions	79							79
Distributions	(960)					0		(960)
Net income attributable to Guardian Pharmacy Services, Inc.	13,295	$ 7,738	$ 5,557				13,295
Net income (loss) attributable to non-controlling interest	249							249
Share-based compensation forfeitures (Shares)				0	0
Share-based compensation forfeitures	(47)					(47)
Share-based compensation expense	1,794					1,794
Conversion of Guardian Pharmacy, LLC common units into Class B common stock of Guardian Pharmacy Services, Inc. (Shares)				13,527,437	(13,527,437)
Conversion of Guardian Pharmacy, LLC common units into Class B common stock of Guardian Pharmacy Services, Inc.				$ 14	$ (14)
Ending Balance at Mar. 31, 2026	232,424			$ 50	$ 13	141,190	$ 79,638	$ 11,533
Ending Balance (Shares) at Mar. 31, 2026				49,781,181	13,539,453
Stockholders' Equity, Other	$ 90					$ 90