COMMITMENTS AND CONTINGENCIES	12 Months Ended
COMMITMENTS AND CONTINGENCIES	Aug. 31, 2024
Commitments and Contingencies Disclosure [Abstract]
COMMITMENTS AND CONTINGENCIES	NOTE 17. COMMITMENTS AND CONTINGENCIES In the ordinary course of conducting its business, the Company becomes involved in litigation, administrative proceedings and governmental investigations, including environmental matters. Legal Proceedings On October 30, 2020, plaintiff Pacific Steel Group ("PSG") filed a suit in the United States District Court for the Northern District of California (the "Northern District Court") alleging that CMC, CMC Steel Fabricators, Inc. and CMC Steel US, LLC violated federal and California state antitrust laws and California common law by entering into an exclusivity agreement for certain steel mill equipment manufactured by one of the Company’s equipment suppliers. PSG seeks, among other things, a jury trial on its claims in addition to injunctive relief, compensatory damages, fees and costs. Fact and expert discovery are complete. Both the motion for summary judgment filed by CMC, CMC Steel Fabricators, Inc. and CMC Steel US, LLC and the cross-motion for summary judgment filed by PSG were denied by the Northern District Court on June 10, 2024. A jury trial is scheduled for late October 2024. The Company believes that it has substantial defenses and intends to vigorously defend against PSG's claims. The Company has not recorded any liability for this matter as it does not believe a loss is probable, and it cannot estimate any reasonably possible loss or range of possible loss. It is possible that an unfavorable resolution to this matter could have an adverse effect on the Company’s results of operations, financial position or cash flows. On March 13, 2022, PSG filed a second suit in the San Diego County Superior Court of California alleging that CMC Steel Fabricators, Inc., CMC Steel US, LLC, and CMC Rebar West (which later merged into CMC Steel Fabricators, Inc.) violated California state antitrust and unfair competition laws by bidding below their costs for rebar furnish-and-install projects in California to hamper PSG's ability to win jobs. These same allegations were initially brought in PSG's lawsuit pending in the Northern District Court, but were dismissed without prejudice by the Northern District Court for lack of jurisdiction. This second lawsuit was later removed to the United States District Court for the Southern District of California (the "Southern District Court"). There, PSG seeks, among other things, a jury trial on its claims in addition to injunctive relief, compensatory damages, fees and costs. Fact discovery is substantially complete and expert discovery is underway. As of the date of this Annual Report, no summary judgment motions have been filed nor has a trial been scheduled. The Company believes that it has substantial defenses and intends to vigorously defend against PSG's claims. The Company has not recorded any liability for this matter as it does not believe a loss is probable, and it cannot estimate any reasonably possible loss or range of possible loss. It is possible that an unfavorable resolution to this matter could have an adverse effect on the Company’s results of operations, financial position or cash flows. Other Matters At August 31, 2024 and 2023, the amounts accrued for cleanup and remediation costs at certain sites in response to notices, actions and agreements under the Comprehensive Environmental Response, Compensation and Liability Act of 1980 (“CERCLA”) and analogous state and local statutes were immaterial. Total accrued environmental liabilities, including CERCLA sites, were $3.4 million and $4.5 million as of August 31, 2024 and 2023, respectively, of which $1.9 million and $2.0 million was classified as other noncurrent liabilities at August 31, 2024 and 2023, respectively. These amounts have not been discounted to their present values. Due to evolving remediation technology, changing regulations, possible third-party contributions, the inherent uncertainties of the estimation process and other factors, amounts accrued could vary significantly from amounts paid.