STATEMENT OF CASH FLOWS SUPPLEMENTAL INFORMATION - Narrative (Detail) - USD ($)	12 Months Ended
	Jul. 31, 2024	Jul. 31, 2023	Jun. 06, 2023	May 01, 2023
Cash and Cash Equivalents [Line Items]
Issuance of nonvested common stock ( in shares)	100,000	100,000
Issuance of nonvested common stock, value	$ 700,000	$ 700,000
Share-based payment arrangement, accelerated cost		57,400
Redeemable noncontrolling interest, equity, preferred, carrying amount	$ 237,739,000	$ 237,739,000
Common stock, par value (in usd per share)	$ 0.01	$ 0.01	$ 0.01
Aerojet Share
Cash and Cash Equivalents [Line Items]
Aerojet common stock proceeds receivable	$ 0	$ 154,500,000
Aerojet Share | Exchange Transaction Agreement | Steel Partners | Exchanging Parties
Cash and Cash Equivalents [Line Items]
Common stock, shares exchanged (in shares)		3,600,000		3,597,744
Common stock, par value (in usd per share)		$ 0.10		$ 100
Series E Contingently Redeemable Preferred Stock
Cash and Cash Equivalents [Line Items]
Redeemable noncontrolling interest, equity, preferred, carrying amount	$ 202,733,000	$ 202,733,000