Business Segments (Assets by Segment) (Details) - USD ($) $ in Thousands	Jun. 30, 2015	Mar. 31, 2015
Segment Reporting, Asset Reconciling Item [Line Items]
Goodwill	$ 290,867	$ 290,651
Indefinite-lived intangibles	1,873,029
Finite-lived intangibles	256,831
Intangible assets, net	2,129,860	2,134,700
Intangible assets, net (including goodwill)	2,420,727
North American OTC Healthcare
Segment Reporting, Asset Reconciling Item [Line Items]
Goodwill	263,716	263,411
Indefinite-lived intangibles	1,676,991
Finite-lived intangibles	231,251
Intangible assets, net	1,908,242
Intangible assets, net (including goodwill)	2,171,958
International OTC Healthcare
Segment Reporting, Asset Reconciling Item [Line Items]
Goodwill	20,351	20,440
Indefinite-lived intangibles	85,766
Finite-lived intangibles	1,594
Intangible assets, net	87,360
Intangible assets, net (including goodwill)	107,711
Household Cleaning
Segment Reporting, Asset Reconciling Item [Line Items]
Goodwill	6,800	$ 6,800
Indefinite-lived intangibles	110,272
Finite-lived intangibles	23,986
Intangible assets, net	134,258
Intangible assets, net (including goodwill)	$ 141,058

Amount after amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life.

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