Intangible Assets (Narrative) (Details) $ in Thousands		3 Months Ended	12 Months Ended
	Sep. 03, 2014 USD ($)	Jun. 30, 2015 USD ($) business	Mar. 31, 2015 business	Apr. 30, 2014 USD ($)
Finite-Lived Intangible Assets [Line Items]
Number of acquisitions | business		2	2
Weighted average remaining life for finite-lived intangible assets		14 years 5 months
Amortization expense		$ 4,460
Minimum
Finite-Lived Intangible Assets [Line Items]
Intangible assets, useful lives		10 years
Maximum
Finite-Lived Intangible Assets [Line Items]
Intangible assets, useful lives		30 years
Insight Pharmaceuticals
Finite-Lived Intangible Assets [Line Items]
Intangible assets	$ 724,374
Acquired intangible assets sold on acquisition date	$ 17,700
Weighted average remaining life for finite-lived intangible assets		15 years 04 months 1 day
Hydralyte
Finite-Lived Intangible Assets [Line Items]
Intangible assets				$ 73,580