Consolidated Statements of Changes in Members' Equity and Stockholders' Equity - USD ($) $ in Thousands	Total	Class A [Member]	Class B [Member]	Members' Equity [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, 2022	$ 75,929			$ 42,729					$ 33,200
Contributions	195								195
Non-cash equity contribution	225								225
Net income prior to Corporate Reorganization	5,714			1,704					4,010
Distributions	(9,346)			(6,166)					(3,180)
Ending Balance at Mar. 31, 2023	72,717			38,267					34,450
Beginning Balance at Dec. 31, 2022	75,929			42,729					33,200
Net income	23,161
Ending Balance at Sep. 30, 2023	59,699			26,191					33,508
Beginning Balance at Mar. 31, 2023	72,717			38,267					34,450
Contributions	120								120
Net income prior to Corporate Reorganization	24,442			21,470					2,972
Distributions	(20,500)			(15,724)					(4,776)
Ending Balance at Jun. 30, 2023	76,779			44,013					32,766
Contributions	223								223
Net income	(6,995)
Net income prior to Corporate Reorganization	(6,995)			(11,290)					4,295
Distributions	(10,308)			(6,532)					(3,776)
Ending Balance at Sep. 30, 2023	59,699			26,191					33,508
Beginning Balance at Dec. 31, 2023	59,859			28,209					31,650
Contributions	428								428
Net income	7,095			2,786					4,309
Distributions	(10,809)			(7,130)					(3,679)
Ending Balance at Mar. 31, 2024	56,573			23,865					32,708
Beginning Balance at Dec. 31, 2023	59,859			28,209					31,650
Net income	(82,874)
Net income (loss) attributable to Guardian Pharmacy Services, Inc.	(121,990)	$ (16,560)	$ (105,430)
Ending Balance at Sep. 30, 2024	133,896				$ 9	$ 54	$ 122,323	$ 5,181	6,329
Ending Balance (Shares) at Sep. 30, 2024					9,200,000	54,094,232
Beginning Balance at Mar. 31, 2024	56,573			23,865					32,708
Contributions	724								724
Net income	15,848			10,624					5,224
Non-cash equity contribution	4,989								4,989
Distributions	(20,921)			(16,612)					(4,309)
Ending Balance at Jun. 30, 2024	57,213			17,877					39,336
Net income	(105,817)
Net income prior to Corporate Reorganization	16,167			9,350					6,817
Contributions prior to Corporate Reorganization	955								955
Distributions prior to Corporate Reorganization	(18,599)			(12,308)					(6,291)
Conversion of non-controlling interest into Guardian Pharmacy, LLC common units				34,494					(34,494)
Conversion of Restricted Interest Unit awards into Guardian Pharmacy, LLC common units	142,498			142,498
Conversion of Guardian Pharmacy, LLC common units into Class B common stock of Guardian Pharmacy Services, Inc. (Shares)						54,094,232
Conversion of Guardian Pharmacy, LLC common units into Class B common stock of Guardian Pharmacy Services, Inc.				$ (191,911)		$ 54	9,510	182,347
Issuance of Class A common stock, net of costs (Shares)					9,200,000
Issuance of Class A common stock, net of costs	106,737				$ 9		106,728
Payments to Class B common stock stockholders of $1.02 per share	(55,176)							(55,176)
Recognition of deferred tax asset, net from Corporate Reorganization	5,973						5,973
Net income (loss) attributable to Guardian Pharmacy Services, Inc.	(121,990)	$ (16,560)	$ (105,430)					(121,990)
Net income attributable to non-controlling interest subsequent to Corporate Reorganization	6								6
Equity-based compensation subsequent to Corporate Reorganization	112						112
Ending Balance at Sep. 30, 2024	$ 133,896				$ 9	$ 54	$ 122,323	$ 5,181	$ 6,329
Ending Balance (Shares) at Sep. 30, 2024					9,200,000	54,094,232