Receivables (Schedule Of Short-Term Receivables) (Details) - USD ($) $ in Thousands	Jan. 31, 2019	Apr. 30, 2018	Jan. 31, 2018
Accounts, Notes, Loans and Financing Receivable [Line Items]
Receivables, short-term	$ 758,217	$ 146,774	$ 791,618
Receivable, long-term	58,517	52,434	67,227
Loans to franchisees
Accounts, Notes, Loans and Financing Receivable [Line Items]
Receivables, short-term	28,941	30,596	41,062
Receivable, long-term	41,669	35,212	47,434
Receivables for U.S. assisted and DIY tax preparation and related fees
Accounts, Notes, Loans and Financing Receivable [Line Items]
Receivables, short-term	281,266	41,572	299,805
Receivable, long-term	5,503	5,503	6,316
H&R Block Instant RefundTM receivables
Accounts, Notes, Loans and Financing Receivable [Line Items]
Receivables, short-term	5,822	27,192	6,848
Receivable, long-term	247	2,057	0
H&R Block Emerald AdvanceTM lines of credit
Accounts, Notes, Loans and Financing Receivable [Line Items]
Receivables, short-term	362,400	15,642	353,972
Receivable, long-term	7,667	5,754	9,081
Software receivables from retailers
Accounts, Notes, Loans and Financing Receivable [Line Items]
Receivables, short-term	8,396	6,769	7,744
Receivable, long-term	0	0	0
Royalties and other receivables from franchisees
Accounts, Notes, Loans and Financing Receivable [Line Items]
Receivables, short-term	54,907	9,239	56,149
Receivable, long-term	733	761	788
Other
Accounts, Notes, Loans and Financing Receivable [Line Items]
Receivables, short-term	16,485	15,764	26,038
Receivable, long-term	$ 2,698	$ 3,147	$ 3,608