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Intangible Assets (Narrative) (Details)			12 Months Ended
	Feb. 28, 2021 USD ($)	Feb. 28, 2019 USD ($) asset	Mar. 31, 2021 USD ($)	Mar. 31, 2020 USD ($)
Schedule of Intangible Assets [Line Items]
Goodwill, impairment loss		$ 33,500,000	$ 1,157,000
Impairment of indefinite-lived assets	$ 0
Number of assets impaired | asset		3
Intangible assets, tradename impairment		$ 41,000,000.0
Finite-lived intangible assets, weighted average remaining period			10 years
Amortization of intangible assets			$ 19,580,000	$ 19,633,000
Measurement Input, Cap Rate
Schedule of Intangible Assets [Line Items]
Indefinite-lived intangible asset, increase (decrease) in measurement input			0.50%
Measurement Input, Long-term Revenue Growth Rate
Schedule of Intangible Assets [Line Items]
Indefinite-lived intangible asset, increase (decrease) in measurement input			(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			30 years
Finite-Lived Tradenames and Customer Relationships
Schedule of Intangible Assets [Line Items]
Intangible assets, tradename impairment		$ 155,000,000.0	$ 1,186,000
Amortization of intangible assets			19,580,000	$ 19,633,000
International OTC Healthcare
Schedule of Intangible Assets [Line Items]
Goodwill, impairment loss	$ 1,200,000		$ 1,157,000

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