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Intangible Assets (Narrative) (Details) - USD ($)
$ in Thousands
 3 Months Ended 12 Months Ended
Feb. 28, 2023
Feb. 28, 2022
Sep. 30, 2021
Mar. 31, 2023
Mar. 31, 2022
Schedule of Intangible Assets [Line Items]          
Impairment of intangible assets   $ 700   $ 321,412 $ 1,700
Additional impairment that would be recorded as a result of increase in basis points $ 46,500        
Additional impairment that would be recorded as a result of decrease in basis points 23,300        
Finite-lived intangible assets, weighted average remaining period       8 years 8 months 12 days  
Amortization of intangible assets       $ 22,266 21,499
Finite-Lived Tradenames and Customer Relationships          
Schedule of Intangible Assets [Line Items]          
Intangible assets, tradename impairment       22,748 1,700
Amortization of intangible assets       22,266 21,499
Indefinite- Lived Tradenames          
Schedule of Intangible Assets [Line Items]          
Impairment of indefinite-lived assets $ 298,700     $ 298,664 $ 0
Measurement Input, Long-term Revenue Growth Rate          
Schedule of Intangible Assets [Line Items]          
Indefinite-lived intangible asset, increase (decrease) in measurement input 10.00%     10.00%  
Measurement Input, Cap Rate          
Schedule of Intangible Assets [Line Items]          
Indefinite-lived intangible asset, increase (decrease) in measurement input       0.50%  
Sensitivity analysis, increase In intangible asset measurement input that would not have resulted In fair value exceeding carrying value 0.50%        
Minimum          
Schedule of Intangible Assets [Line Items]          
Intangible assets, useful lives       10 years  
Maximum          
Schedule of Intangible Assets [Line Items]          
Intangible assets, useful lives       25 years  
International OTC Healthcare          
Schedule of Intangible Assets [Line Items]          
Intangible assets, tradename impairment     $ 1,200