Revenue Recognition (Disaggregation of Revenue) (Details) - USD ($) $ in Thousands	12 Months Ended
	Apr. 30, 2021	Apr. 30, 2020	Apr. 30, 2019
Disaggregation of Revenue [Line Items]
Revenues	$ 3,413,987	$ 2,639,720	$ 3,094,881
U.S. assisted tax preparation
Disaggregation of Revenue [Line Items]
Revenues	2,035,107	1,533,303	1,858,998
U.S. royalties
Disaggregation of Revenue [Line Items]
Revenues	226,253	193,411	243,541
U.S. DIY tax preparation
Disaggregation of Revenue [Line Items]
Revenues	313,055	208,901	261,413
International
Disaggregation of Revenue [Line Items]
Revenues	249,868	180,065	220,562
Refund Transfers
Disaggregation of Revenue [Line Items]
Revenues	163,329	154,687	169,985
Emerald Card®
Disaggregation of Revenue [Line Items]
Revenues	136,717	92,737	98,256
Peace of Mind® Extended Service Plan
Disaggregation of Revenue [Line Items]
Revenues	98,882	105,185	108,114
Revenues from Tax Identity Shield®
Disaggregation of Revenue [Line Items]
Revenues	40,624	31,797	35,661
Interest and fee income on Emerald AdvanceSM
Disaggregation of Revenue [Line Items]
Revenues	53,430	60,867	58,182
Wave HQ Inc.
Disaggregation of Revenue [Line Items]
Revenues		36,711	0
Revenues	58,277
Other
Disaggregation of Revenue [Line Items]
Revenues	$ 38,445	$ 42,056	$ 40,169