Receivables (Schedule Of Loans Receivable) (Details) - USD ($) $ in Thousands	Jul. 31, 2015	Apr. 30, 2015	Jul. 31, 2014
Accounts, Notes, Loans and Financing Receivable [Line Items]
Accounts Receivable, Gross, Current	$ 156,965	$ 222,491	$ 173,715
Accounts Receivable, Gross, Noncurrent	72,427	80,867	101,146
Emerald Advance lines of credit
Accounts, Notes, Loans and Financing Receivable [Line Items]
Accounts Receivable, Gross, Current	20,321
Short-term		21,908	20,239
Accounts Receivable, Gross, Noncurrent	598	1,913	2,839
Financing Receivable, Gross	20,919
Loans to franchisees
Accounts, Notes, Loans and Financing Receivable [Line Items]
Accounts Receivable, Gross, Current	56,277
Short-term		56,603	62,195
Accounts Receivable, Gross, Noncurrent	57,792	64,472	83,013
Cash Back® receivables
Accounts, Notes, Loans and Financing Receivable [Line Items]
Accounts Receivable, Gross, Current	2,777
Short-term		42,680	4,170
Accounts Receivable, Gross, Noncurrent	$ 0	$ 0	$ 0