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OTHER ITEMS AND CHARGES	9 Months Ended
OTHER ITEMS AND CHARGES	Sep. 30, 2025
Unusual or Infrequent Items, or Both [Abstract]
OTHER ITEMS AND CHARGES	OTHER ITEMS AND CHARGES Expense from Acquisition Activities In the three and nine months ended September 30, 2025, we recorded charges of $4,618 and $16,610, respectively, and in the three and nine months ended September 30, 2024, we recorded charges of $5,450 and $18,297, respectively, comprised primarily of legal, consulting, rebranding, information technology and other costs associated with the due diligence, acquisition and integration of acquired businesses. The nine months ended September 30, 2024 included a charge for an increase in the reserve against accounts receivable of the businesses acquired in our acquisition of the equity interests of four wholly-owned subsidiaries of GFL Environmental Inc. as a result of our inability to pursue collections during the transition services period with the seller, resulting in accounts receivable aged beyond what is typical in our business. Southbridge Landfill Closure Charge In the fiscal year ended December 31, 2017, we initiated a plan to cease operations of the Southbridge Landfill and later closed it in November 2018 when it reached its final capacity. In the three and nine months ended September 30, 2024, we recorded a non-cash charge of $8,477, which is associated with our receipt of a final closure permit (the “Closure Permit”) from the Massachusetts Department of Environmental Protection related to the Southbridge Landfill. Pursuant to the terms of the Closure Permit, we are required to meet certain general permit conditions and certain specific permit conditions (collectively, the “Conditions”), including environmental monitoring, third party inspections, inspection of the final cover, leachate sampling, post-closure monitoring, and other post-closure requirements. We revised the accrued post-closure liability for the Southbridge Landfill to reflect the estimated cost of satisfying the expanded Conditions as currently specified in the Closure Permit.