Receivables (Schedule Of Activity In The Allowance For Doubtful Accounts) (Details) (USD $) In Thousands, unless otherwise specified	9 Months Ended
	Jan. 31, 2015	Jan. 31, 2014	Apr. 30, 2014
Accounts, Notes, Loans and Financing Receivable [Line Items]
Allowance for doubtful accounts	$ 49,859	$ 42,716	$ 52,578
Allowance for Doubtful Accounts [Roll Forward]
Beginning balance		57,703
Provision	41,664	37,279
Charge-offs	(44,383)	(49,735)
Ending balance		45,247
Emerald Advance lines of credit
Accounts, Notes, Loans and Financing Receivable [Line Items]
Allowance for doubtful accounts	36,051		7,530
Allowance for Doubtful Accounts [Roll Forward]
Beginning balance		7,390
Provision	28,521	24,787
Charge-offs	0	0
Ending balance		32,177
Loans to franchisees
Accounts, Notes, Loans and Financing Receivable [Line Items]
Allowance for doubtful accounts	0		0
Allowance for Doubtful Accounts [Roll Forward]
Beginning balance		0
Provision	0	42
Charge-offs	0	(2)
Ending balance		40
Cash Back® receivables
Accounts, Notes, Loans and Financing Receivable [Line Items]
Allowance for doubtful accounts	1,680		3,002
Allowance for Doubtful Accounts [Roll Forward]
Beginning balance		2,769
Provision	199	248
Charge-offs	(1,521)	(1,667)
Ending balance		1,350
All Other
Accounts, Notes, Loans and Financing Receivable [Line Items]
Allowance for doubtful accounts	12,128		42,046
Allowance for Doubtful Accounts [Roll Forward]
Beginning balance		47,544
Provision	12,944	12,202
Charge-offs	(42,862)	(48,066)
Ending balance		$ 11,680