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Face amount or stated value per share of preferred stock nonredeemable or redeemable solely at the option of the issuer.

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RELATED PARTY TRANSACTIONS (Detail) - USD ($) $ / shares in Units, $ in Millions		3 Months Ended		6 Months Ended
	Dec. 15, 2017	Jan. 31, 2020	Jan. 31, 2019	Jan. 31, 2020	Jan. 31, 2019	Jul. 31, 2019	Feb. 28, 2019
Related Party Transaction [Line Items]
Preferred stock, shares issued (in shares)		0		0		0
Preferred stock, par value (in usd per share)		$ 0.01		$ 0.01		$ 0.01
Steel Holdings \| 5.25% Convertible Senior Notes
Related Party Transaction [Line Items]
Principal amount convertible senior notes held of						$ 14.9	$ 14.9
Debt instrument, stated interest rate			5.25%		5.25%		7.50%
SPHG Holdings \| Purchase Agreement \| Series C Convertible Preferred Stock
Related Party Transaction [Line Items]
Preferred stock, shares issued (in shares)	35,000
Preferred stock, par value (in usd per share)	$ 0.01
Price per share (in usd per share)	$ 1,000
Proceeds from issuance of preferred stock	$ 35.0
Steel Services Ltd. \| Management Services Agreement
Related Party Transaction [Line Items]
Total expenses incurred related to Management Services Agreement and Transfer Agreement		$ 0.9	$ 0.4	$ 1.7	$ 0.7
SP Corporate Services Llc and Steel Services Limited \| Management Services Agreement
Related Party Transaction [Line Items]
Amount due to related parties		$ 0.3		$ 0.3		$ 0.5
Steel Connect, Inc. \| SPHG Holdings
Related Party Transaction [Line Items]
Ownership percentage in capital stock		56.30%		56.30%