Supplemental Financial Statement Information Supplemental Financial Statement Information (Other Assets) (Details) - USD ($) $ in Thousands	Oct. 31, 2016	Jul. 31, 2016
Accounts Receivable, Related Parties, Noncurrent	$ 40,000	$ 39,800
Other Assets	48,103	47,463
Other Assets, Noncurrent	88,103	87,223
Ferrellgas, L.P. [Member]
Accounts Receivable, Related Parties, Noncurrent	40,000	39,800
Other Assets	48,103	47,463
Other Assets, Noncurrent	$ 88,103	$ 87,223