Summary of Significant Accounting Policies - Additional Information (Details) $ in Thousands		3 Months Ended				6 Months Ended	9 Months Ended		30 Months Ended
	May 01, 2024 USD ($)	May 31, 2024 USD ($)	Feb. 29, 2024 USD ($)	May 31, 2023 USD ($)	Nov. 30, 2022 USD ($)	Feb. 29, 2024 USD ($)	May 31, 2024 USD ($) Segment	May 31, 2023 USD ($)	May 31, 2024 USD ($)	Aug. 31, 2023 USD ($)
Significant Accounting Policies [Line Items]
Number of operating segments | Segment							1
Number of reportable segments | Segment							1
Bank Overdrafts		$ 66,000					$ 66,000		$ 66,000	$ 62,000
Repayment of Advances with Scrap Metal							9,000	$ 8,000
Advances to supplier		16,000					16,000		16,000	11,000
Cash deposited into client trust account										7,000
Cash reserve deposit distributed			$ 7,000
Impairment in other loss, net					$ (4,000)
Fair value of investment										1,000
Capitalized cloud computing arrangement implementation costs		7,000					7,000		7,000	5,000
Insurance recovery gain		7,000
Gain on insurance receivable recognized				$ 2,000		$ 6,000		2,000
Goodwill impairment charges	$ 216,000	215,941					215,941
Gain (loss) from equity method investments		300		$ 285			1,003	$ 1,386
Cash, FDIC Insured Amount		250					250		250
Maximum
Significant Accounting Policies [Line Items]
Fair value of investment		1,000					1,000		1,000
Damage From Fire at Metals Recycling Facility in Everett, Massachusetts
Significant Accounting Policies [Line Items]
Insurance receivable		7,000					7,000		7,000	1,000
Insurance recovery gain									47,000
Received payment related to claims from various insurers									40,000
US Recycling
Significant Accounting Policies [Line Items]
Investment, Original Cost		6,000					6,000		6,000
Prepaid Expenses and Other Current Assets
Significant Accounting Policies [Line Items]
Prepaid expense		19,000					19,000		19,000	27,000
Prepaid Expenses and Other Current Assets | Certificates of Deposit
Significant Accounting Policies [Line Items]
Short-term investment		6,000					6,000		6,000
Other Current Assets
Significant Accounting Policies [Line Items]
Insurance receivable		22,000					22,000		22,000	14,000
Environmental claims insurance receivable		$ 12,000					$ 12,000		$ 12,000	$ 10,000