v3.25.1
Basic and Diluted Net Income Per Share - Summary of Basic and Diluted Net Income Per Share of Class A and Class B Common Stock (Detail) - USD ($)
$ / shares in Units, $ in Thousands
 3 Months Ended 12 Months Ended
Mar. 31, 2025
Dec. 31, 2024
Numerator:    
Allocation of net income attributable to Guardian Pharmacy Services, Inc. $ 9,448 $ (110,047)
Denominator:    
Weighted average number of shares of Class A and Class B common stock outstanding 62,043,311  
Basic net income per share attributable to common stockholders $ 0.15  
Numerator:    
Allocation of net income attributable to Guardian Pharmacy Services, Inc. $ 9,448 (110,047)
Denominator:    
Weighted average shares of Class A and Class B common stock outstanding used to calculate diluted net income per share 62,914,077  
Diluted net income (loss) per share attributable to common stockholders $ 0.15  
Common Class A [Member]    
Numerator:    
Allocation of net income attributable to Guardian Pharmacy Services, Inc. $ 1,490 $ (16,261)
Denominator:    
Weighted average number of shares of Class A and Class B common stock outstanding 9,787,073 9,162,500
Basic net income per share attributable to common stockholders $ 0.15 $ (1.77)
Numerator:    
Allocation of net income attributable to Guardian Pharmacy Services, Inc. $ 1,490 $ (16,261)
Denominator:    
Number of shares used in basic computation 9,787,073 9,162,500
Weighted average shares of Class A and Class B common stock outstanding used to calculate diluted net income per share 9,924,434 9,162,500
Diluted net income (loss) per share attributable to common stockholders $ 0.15 $ (1.77)
Common Class B [Member]    
Numerator:    
Allocation of net income attributable to Guardian Pharmacy Services, Inc. $ 7,958 $ (93,786)
Denominator:    
Weighted average number of shares of Class A and Class B common stock outstanding 52,256,238 52,843,311
Basic net income per share attributable to common stockholders $ 0.15 $ (1.77)
Numerator:    
Allocation of net income attributable to Guardian Pharmacy Services, Inc. $ 7,958 $ (93,786)
Denominator:    
Number of shares used in basic computation 52,256,238 52,843,311
Weighted average shares of Class A and Class B common stock outstanding used to calculate diluted net income per share 52,989,643 52,843,311
Diluted net income (loss) per share attributable to common stockholders $ 0.15 $ (1.77)
Restricted Stock [Member] | Common Class A [Member]    
Denominator:    
Dilutive Restricted Stock Units and Class A and B Common Stock
Restricted Stock [Member] | Common Class B [Member]    
Denominator:    
Dilutive Restricted Stock Units and Class A and B Common Stock