v3.26.1
Goodwill (Schedule of Changes in Goodwill) (Details)
$ in Thousands
12 Months Ended
Dec. 18, 2025
USD ($)
Mar. 31, 2026
USD ($)
Mar. 31, 2025
USD ($)
Mar. 31, 2024
USD ($)
Jan. 08, 2024
supplier
Goodwill [Roll Forward]          
Goodwill, gross, beginning   $ 741,528 $ 741,836    
Accumulated impairment losses   (214,103) (214,103)    
Goodwill, net, beginning   527,425 527,733    
Adjustment related to acquisition     309    
Effects of foreign currency exchange rates   912 (617)    
Additions $ 52,800 52,772   $ 600  
Goodwill, gross, ending   795,212 741,528 741,836  
Accumulated impairment losses   (214,103) (214,103) (214,103)  
Goodwill, net, ending   581,109 527,425 527,733  
Number of suppliers acquired | supplier         1
North American OTC Healthcare          
Goodwill [Roll Forward]          
Goodwill, gross, beginning   711,452 711,452    
Accumulated impairment losses   (212,516) (212,516)    
Goodwill, net, beginning   498,936 498,936    
Adjustment related to acquisition     0    
Effects of foreign currency exchange rates   (721) 0    
Additions   52,772      
Goodwill, gross, ending   763,503 711,452 711,452  
Accumulated impairment losses   (212,516) (212,516) (212,516)  
Goodwill, net, ending   550,987 498,936 498,936  
International OTC Healthcare          
Goodwill [Roll Forward]          
Goodwill, gross, beginning   30,076 30,384    
Accumulated impairment losses   (1,587) (1,587)    
Goodwill, net, beginning   28,489 28,797    
Adjustment related to acquisition     309    
Effects of foreign currency exchange rates   1,633 (617)    
Additions   0      
Goodwill, gross, ending   31,709 30,076 30,384  
Accumulated impairment losses   (1,587) (1,587) (1,587)  
Goodwill, net, ending   $ 30,122 $ 28,489 $ 28,797