Business Acquisitions - Summary of Provisional Fair Values of Assets Acquired and Liabilities Assumed (Details) - USD ($) $ in Thousands	May 31, 2023	Nov. 18, 2022	Aug. 31, 2022	Apr. 29, 2022	Oct. 01, 2021
Business Acquisition [Line Items]
Goodwill	$ 268,595		$ 255,198
Scrapsource
Business Acquisition [Line Items]
Operating lease right-of-use assets		$ 466
Goodwill		13,105
Other intangible assets		11,955
Other assets		9
Total assets acquired		25,535
Operating lease liability		466
Total liabilities assumed		466
Net assets acquired		$ 25,069
Columbus Recycling
Business Acquisition [Line Items]
Goodwill					$ 65,000
Encore Recycling
Business Acquisition [Line Items]
Goodwill				$ 21,000