Goodwill and Other Intangible Assets, net [Line Items]

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- Definition

Terminal growth rate.

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- Definition

Weighted average cost of capital rate.

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- Definition

The aggregate expense charged against earnings to allocate the cost of intangible assets (nonphysical assets not used in production) in a systematic and rational manner to the periods expected to benefit from such assets. As a noncash expense, this element is added back to net income when calculating cash provided by or used in operations using the indirect method.

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- Definition

Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

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- Definition

Amount of accumulated impairment loss for an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

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- Definition

Amount of loss from the write-down of an asset representing the future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

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- Definition

The amount of impairment loss recognized in the period resulting from the write-down of the carrying amount of an intangible asset (excluding goodwill) to fair value.

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- Definition

Number of reporting units tested for impairment of goodwill. A reporting unit is an operating segment or one level below an operating segment.

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- Definition

Percentage of fair value of reporting unit in excess of carrying amount.

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Goodwill and Other Intangible Assets, Net - Additional Information (Details)	12 Months Ended
	Aug. 31, 2023 USD ($) Reporting_unit	Aug. 31, 2022 USD ($)	Aug. 31, 2021 USD ($)	Jul. 01, 2023 USD ($)
Goodwill and Other Intangible Assets, net [Line Items]
Goodwill	$ 229,419,000	$ 255,198,000	$ 170,304,000	$ 269,000,000
Terminal growth rate	2.00%
Number of reporting units \| Reporting_unit	4
Goodwill, impaired, accumulated impairment loss	$ 510,000,000	471,000,000
Amortization of intangible assets	6,000,000	3,000,000	1,000,000
Impairments of amortized intangible assets recognized	0	0	0
Goodwill impairment charges	39,270,000	$ 0	$ 0
Recycling Services Operation
Goodwill and Other Intangible Assets, net [Line Items]
Goodwill	13,000,000
Regional Metals Recycling Operation and Auto Parts Stores
Goodwill and Other Intangible Assets, net [Line Items]
Goodwill	$ 256,000,000
Metals Recycling
Goodwill and Other Intangible Assets, net [Line Items]
Estimated fair value of reporting unit exceeded carrying amount	24.00%
WACC rate	13.68%
Number of reporting units \| Reporting_unit	2
Autos Reporting Units
Goodwill and Other Intangible Assets, net [Line Items]
Estimated fair value of reporting unit exceeded carrying amount	33.00%
WACC rate	13.62%
Number of reporting units \| Reporting_unit	1