Contingencies (Details Textual) - Big Heart [Member] - USD ($) $ in Millions	6 Months Ended	12 Months Ended
	Oct. 31, 2015	Apr. 30, 2015
Loss Contingencies [Line Items]
Business acquisition consideration given		$ 5,897.8
Pending Litigation [Member]
Loss Contingencies [Line Items]
Business acquisition consideration given	$ 1,700.0
Initial working capital adjustment received currently in dispute	110.0
Loss contingency estimate of possible loss	$ 16.3