Goodwill - Schedule of Changes (Details) $ in Thousands	6 Months Ended
Sep. 30, 2021 USD ($)
Goodwill [Roll Forward]
Goodwill	$ 743,037
Accumulated impairment loss, beginning	(164,958)
Goodwill, net	578,079
Goodwill, Acquired During Period	1,758
Effects of foreign currency exchange rates	(1,040)
Goodwill, gross, ending	743,755
Accumulated impairment loss, ending	(164,958)
Goodwill, net, ending	578,797
North American OTC Healthcare
Goodwill [Roll Forward]
Goodwill	710,354
Accumulated impairment loss, beginning	(163,711)
Goodwill, net	546,643
Goodwill, Acquired During Period	1,758
Effects of foreign currency exchange rates	0
Goodwill, gross, ending	712,112
Accumulated impairment loss, ending	(163,711)
Goodwill, net, ending	548,401
International OTC Healthcare
Goodwill [Roll Forward]
Goodwill	32,683
Accumulated impairment loss, beginning	(1,247)
Goodwill, net	31,436
Goodwill, Acquired During Period	0
Effects of foreign currency exchange rates	(1,040)
Goodwill, gross, ending	31,643
Accumulated impairment loss, ending	(1,247)
Goodwill, net, ending	$ 30,396

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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