Amount of net assets (liabilities).

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Data Type:	xbrli:monetaryItemType
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Period Type:	instant

LITIGATION AND OTHER RELATED CONTINGENCIES (Details) $ in Millions	May 06, 2019	Jul. 31, 2020 USD ($)	Apr. 30, 2020 USD ($)	Jul. 31, 2019 USD ($)	Sep. 30, 2016 loan	Sep. 28, 2012 loan	May 31, 2012 loan
Loss Contingencies [Line Items]
Loss contingency accrual \| $		$ 1.6	$ 1.6	$ 1.6
Original loans collateralized							7,500
Number of loans sold to the trust						96
Loans sold to trust, with claims of breach of contract and indemnity					649
SCC
Loss Contingencies [Line Items]
Principal assets of SCC \| $		$ 274.0
Free File Litigation
Loss Contingencies [Line Items]
Eligibility period prior to filing complaint	4 years