Receivables (Schedule Of Loans Receivable) (Details) - USD ($) $ in Thousands	Oct. 31, 2015	Apr. 30, 2015	Oct. 31, 2014
Accounts, Notes, Loans and Financing Receivable [Line Items]
Accounts Receivable, Gross, Current	$ 148,100	$ 222,491	$ 159,451
Accounts Receivable, Gross, Noncurrent	75,275	80,867	101,805
Emerald Advance lines of credit
Accounts, Notes, Loans and Financing Receivable [Line Items]
Accounts Receivable, Gross, Current	19,373	21,908	20,073
Accounts Receivable, Gross, Noncurrent	246	1,913	2,778
Financing Receivable, Gross	19,619
Loans to franchisees
Accounts, Notes, Loans and Financing Receivable [Line Items]
Accounts Receivable, Gross, Current	55,970	56,603	62,568
Accounts Receivable, Gross, Noncurrent	61,428	64,472	84,462
Cash Back® receivables
Accounts, Notes, Loans and Financing Receivable [Line Items]
Accounts Receivable, Gross, Current	901	42,680	1,955
Accounts Receivable, Gross, Noncurrent	$ 0	$ 0	$ 0