Variable Interest Entities (Details)	Apr. 30, 2016 USD ($) entities
Employee Housing Entities [Member]
Number of Variable Interest Entities | entities	4
Carrying amount of consolidated VIE assets	$ 25,700,000
Carrying amount of consolidated VIE liabilities	64,300,000
Amount outstanding in letters of credit	53,400,000
Avon Partners II LLC [Member]
Carrying amount of consolidated VIE assets	4,100,000
Carrying amount of consolidated VIE liabilities	$ 0