Goodwill - Schedule of Changes (Details) $ in Thousands	6 Months Ended
Sep. 30, 2023 USD ($)
Goodwill [Roll Forward]
Goodwill	$ 741,656
Accumulated impairment loss, beginning	(214,103)
Goodwill, net	527,553
Effects of foreign currency exchange rates	(693)
Goodwill, gross, ending	740,963
Accumulated impairment loss, ending	(214,103)
Goodwill, net, ending	526,860
North American OTC Healthcare
Goodwill [Roll Forward]
Goodwill	711,452
Accumulated impairment loss, beginning	(212,516)
Goodwill, net	498,936
Effects of foreign currency exchange rates	0
Goodwill, gross, ending	711,452
Accumulated impairment loss, ending	(212,516)
Goodwill, net, ending	498,936
International OTC Healthcare
Goodwill [Roll Forward]
Goodwill	30,204
Accumulated impairment loss, beginning	(1,587)
Goodwill, net	28,617
Effects of foreign currency exchange rates	(693)
Goodwill, gross, ending	29,511
Accumulated impairment loss, ending	(1,587)
Goodwill, net, ending	$ 27,924

Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

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