REVENUE RECOGNITION (Disaggregation of Revenue by Major Service Line) (Details) - USD ($) $ in Thousands	3 Months Ended
	Jul. 31, 2020	Jul. 31, 2019
Disaggregation of Revenue [Line Items]
Total revenues	$ 601,030	$ 150,362
U.S. assisted tax preparation
Disaggregation of Revenue [Line Items]
Total revenues	337,728	32,992
U.S. royalties
Disaggregation of Revenue [Line Items]
Total revenues	35,949	6,859
U.S. DIY tax preparation
Disaggregation of Revenue [Line Items]
Total revenues	67,595	3,410
International
Disaggregation of Revenue [Line Items]
Total revenues	67,818	40,581
Refund Transfers
Disaggregation of Revenue [Line Items]
Total revenues	10,553	1,509
Emerald Card®
Disaggregation of Revenue [Line Items]
Total revenues	17,055	13,855
Peace of Mind® Extended Service Plan
Disaggregation of Revenue [Line Items]
Total revenues	31,995	32,837
Tax Identity Shield®
Disaggregation of Revenue [Line Items]
Total revenues	9,367	4,522
Interest and fee income on Emerald AdvanceTM
Disaggregation of Revenue [Line Items]
Total revenues	663	554
Wave
Disaggregation of Revenue [Line Items]
Total revenues	12,067	3,625
Other
Disaggregation of Revenue [Line Items]
Total revenues	$ 10,240	$ 9,618