Business Segments (Revenue) (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2018	Dec. 31, 2017
Geographic Areas, Revenues from External Customers [Abstract]
Total revenues	$ 241,414	$ 270,615	$ 734,751	$ 785,214
Analgesics
Geographic Areas, Revenues from External Customers [Abstract]
Total revenues	29,461	31,453	86,639	90,640
Cough & Cold
Geographic Areas, Revenues from External Customers [Abstract]
Total revenues	31,721	33,092	79,332	81,341
Women's Health
Geographic Areas, Revenues from External Customers [Abstract]
Total revenues	64,252	66,047	194,870	196,128
Gastrointestinal
Geographic Areas, Revenues from External Customers [Abstract]
Total revenues	41,058	40,643	118,326	113,268
Eye & Ear Care
Geographic Areas, Revenues from External Customers [Abstract]
Total revenues	26,516	24,836	82,447	78,287
Dermatologicals
Geographic Areas, Revenues from External Customers [Abstract]
Total revenues	21,978	23,298	73,575	74,275
Oral Care
Geographic Areas, Revenues from External Customers [Abstract]
Total revenues	24,833	30,411	75,566	86,282
Other OTC
Geographic Areas, Revenues from External Customers [Abstract]
Total revenues	1,595	1,632	4,185	4,163
Household Cleaning
Geographic Areas, Revenues from External Customers [Abstract]
Total revenues	0	19,203	19,811	60,830
North American OTC Healthcare
Geographic Areas, Revenues from External Customers [Abstract]
Total revenues	216,776	225,695	647,501	656,812
North American OTC Healthcare | Analgesics
Geographic Areas, Revenues from External Customers [Abstract]
Total revenues	29,325	31,293	86,221	89,931
North American OTC Healthcare | Cough & Cold
Geographic Areas, Revenues from External Customers [Abstract]
Total revenues	27,137	28,761	63,843	67,738
North American OTC Healthcare | Women's Health
Geographic Areas, Revenues from External Customers [Abstract]
Total revenues	60,946	63,107	186,037	187,688
North American OTC Healthcare | Gastrointestinal
Geographic Areas, Revenues from External Customers [Abstract]
Total revenues	30,737	29,392	94,065	88,145
North American OTC Healthcare | Eye & Ear Care
Geographic Areas, Revenues from External Customers [Abstract]
Total revenues	23,352	21,631	73,669	69,437
North American OTC Healthcare | Dermatologicals
Geographic Areas, Revenues from External Customers [Abstract]
Total revenues	21,508	22,736	71,968	72,688
North American OTC Healthcare | Oral Care
Geographic Areas, Revenues from External Customers [Abstract]
Total revenues	22,177	27,144	67,516	77,026
North American OTC Healthcare | Other OTC
Geographic Areas, Revenues from External Customers [Abstract]
Total revenues	1,594	1,631	4,182	4,159
International OTC Healthcare
Geographic Areas, Revenues from External Customers [Abstract]
Total revenues	24,638	25,717	67,439	67,572
International OTC Healthcare | Analgesics
Geographic Areas, Revenues from External Customers [Abstract]
Total revenues	136	160	418	709
International OTC Healthcare | Cough & Cold
Geographic Areas, Revenues from External Customers [Abstract]
Total revenues	4,584	4,331	15,489	13,603
International OTC Healthcare | Women's Health
Geographic Areas, Revenues from External Customers [Abstract]
Total revenues	3,306	2,940	8,833	8,440
International OTC Healthcare | Gastrointestinal
Geographic Areas, Revenues from External Customers [Abstract]
Total revenues	10,321	11,251	24,261	25,123
International OTC Healthcare | Eye & Ear Care
Geographic Areas, Revenues from External Customers [Abstract]
Total revenues	3,164	3,205	8,778	8,850
International OTC Healthcare | Dermatologicals
Geographic Areas, Revenues from External Customers [Abstract]
Total revenues	470	562	1,607	1,587
International OTC Healthcare | Oral Care
Geographic Areas, Revenues from External Customers [Abstract]
Total revenues	2,656	3,267	8,050	9,256
International OTC Healthcare | Other OTC
Geographic Areas, Revenues from External Customers [Abstract]
Total revenues	1	1	3	4
Household Cleaning
Geographic Areas, Revenues from External Customers [Abstract]
Total revenues	0	19,203	19,811	60,830
Household Cleaning | Analgesics
Geographic Areas, Revenues from External Customers [Abstract]
Total revenues	0	0	0	0
Household Cleaning | Cough & Cold
Geographic Areas, Revenues from External Customers [Abstract]
Total revenues	0	0	0	0
Household Cleaning | Women's Health
Geographic Areas, Revenues from External Customers [Abstract]
Total revenues	0	0	0	0
Household Cleaning | Gastrointestinal
Geographic Areas, Revenues from External Customers [Abstract]
Total revenues	0	0	0	0
Household Cleaning | Eye & Ear Care
Geographic Areas, Revenues from External Customers [Abstract]
Total revenues	0	0	0	0
Household Cleaning | Dermatologicals
Geographic Areas, Revenues from External Customers [Abstract]
Total revenues	0	0	0	0
Household Cleaning | Oral Care
Geographic Areas, Revenues from External Customers [Abstract]
Total revenues	0	0	0	0
Household Cleaning | Other OTC
Geographic Areas, Revenues from External Customers [Abstract]
Total revenues	0	0	0	0
Household Cleaning | Household Cleaning
Geographic Areas, Revenues from External Customers [Abstract]
Total revenues	$ 0	$ 19,203	$ 19,811	$ 60,830