Receivables (Narrative) (Details) - USD ($) $ in Millions	12 Months Ended
	Apr. 30, 2019	Oct. 31, 2019	Oct. 31, 2018
Loans to franchisees
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans more than 90 days past due		$ 0.2	$ 1.1
H&R Block Instant RefundTM receivables
Accounts, Notes, Loans and Financing Receivable [Line Items]
Impaired, non-accrual status term	60 days
H&R Block Emerald AdvanceTM lines of credit
Accounts, Notes, Loans and Financing Receivable [Line Items]
Impaired, non-accrual status term	60 days