Commitments And Contingencies (Narrative) (Details) (USD $)	12 Months Ended			72 Months Ended
	Apr. 30, 2014	Apr. 30, 2013	Apr. 30, 2012	Apr. 30, 2014
Commitments And Contingencies [Line Items]
Additional tax assessment limit per client	$ 5,500			$ 5,500
Standard guarantee accrual amount	11,400,000	18,000,000		11,400,000
Contingent acquisition liabilities, Carrying Amount	9,206,000	11,277,000		9,206,000
Lines of credit, total obligation	90,600,000			90,600,000
Remaining franchise equity lines of credit-undrawn commitment	45,300,000			45,300,000
Obligation under deferred compensation plans	38,100,000	42,500,000		38,100,000
Financing Receivables, Line of Credit Facility, Compensating Balances	215,300,000			215,300,000
Claims received for loans				2,100,000,000
Rent expense	$ 203,300,000	$ 201,000,000	$ 218,300,000
Minimum [Member]
Commitments And Contingencies [Line Items]
Term of operating leases, years	3 years
Maximum [Member]
Commitments And Contingencies [Line Items]
Term of operating leases, years	5 years