Receivables (Schedule Of Loans Receivable) (Details) - USD ($) $ in Thousands	Jan. 31, 2017	Apr. 30, 2016	Jan. 31, 2016
Accounts, Notes, Loans and Financing Receivable [Line Items]
Accounts Receivable, Gross, Current	$ 835,596	$ 210,127	$ 877,008
Accounts Receivable, Gross, Noncurrent	66,251	60,407	76,471
H&R Block Emerald Advance® lines of credit
Accounts, Notes, Loans and Financing Receivable [Line Items]
Accounts Receivable, Gross, Current	385,513	25,092	402,946
Accounts Receivable, Gross, Noncurrent	6,398	869	268
Financing Receivable, Gross	391,911
Loans to franchisees
Accounts, Notes, Loans and Financing Receivable [Line Items]
Accounts Receivable, Gross, Current	62,603	50,000	63,093
Accounts Receivable, Gross, Noncurrent	50,021	46,284	62,431
Cash Back® receivables
Accounts, Notes, Loans and Financing Receivable [Line Items]
Accounts Receivable, Gross, Current	6,279	37,663	5,427
Accounts Receivable, Gross, Noncurrent	$ 0	$ 0	$ 0