ACQUISITIONS AND DIVESTITURES	6 Months Ended
ACQUISITIONS AND DIVESTITURES	Jun. 30, 2024
Business Combination, Asset Acquisition, and Joint Venture Formation [Abstract]
ACQUISITIONS AND DIVESTITURES	ACQUISITIONS AND DIVESTITURES Acquisitions Hod Maden Project On May 8, 2023, the Company, through its wholly owned subsidiary Alacer Gold Corporation, closed on an agreement to acquire a 10% interest in, and operational control of, Artmin Madencilik Sanayi Ve Ticaret A.Ş (“Artmin”) which owns the Hod Maden gold-copper development project, located in northeastern Türkiye (the “Transaction”). Hod Maden was owned 70% by Lidya Madencilik Sanayi ve Ticaret A.Ş (“Lidya Mines”) and 30% by Horizon Copper Corp. (“Horizon”) prior to the closing of the Transaction. Upon closing of the Transaction, the Company made a $120.0 million cash payment to Lidya Mines to acquire a 10% interest in Artmin. The Company has the option to acquire an additional 30% interest in Artmin from Lidya Mines for $120.0 million in structured payments tied to the completion of project construction spending milestones. Additionally, the Company will make contingent payments to Lidya Mines including $30.0 million in milestone payments payable in accordance with an agreed upon schedule beginning at the start of construction and ending on the first anniversary of commercial production and $84.0 million payable upon the delineation of an additional 500,000 gold equivalent ounces of mineral reserves at the Hod Maden project in excess of the project’s current mineral reserves and mineral resources. The Company determined that Artmin is a variable interest entity (“VIE”) for which it is the primary beneficiary and is consolidated under ASC 810 as the Company has the power to direct the significant activities and the right to receive benefits and obligation to absorb losses of Artmin. The assets of Artmin can only be used to settle the obligations of Artmin and not the obligations of the Company. The creditors of Artmin do not have recourse to the assets or general credit of the Company to satisfy its liabilities. The Company concluded that Artmin was not a business based on its assessment under ASC 805 and accounted for the acquisition as an initial consolidation of a VIE that is not a business under ASC 810. The Company incurred transaction costs of approximately $0.4 million in connection with the Transaction included in Other operating expense (income), net in the Condensed Consolidated Statements of Operations. The assets acquired are included in the Corporate and other operating segment. During the three months ended June 30, 2024, Horizon advanced Artmin $3.5 million to help fund working capital. The loan is unsecured, bears interest at the credit default swap premium of Türkiye plus a fixed spread of 4.0% and matures on March 18, 2029. As of June 30, 2024, the balance of the loans was approximately $10.1 million and no repayments have been made. The liability is included in Other non-current liabilities in the Condensed Consolidated Balance Sheets. Divestitures Divestiture of San Luis On May 23, 2024, the Company completed the sale of the San Luis project located in the Ancash department of central Peru to Highlander Silver Corp. (“Highlander Silver”) in exchange for cash of $5.0 million and contingent consideration in the form of cash payments of up to $37.5 million. The Company recognized a gain of $6.7 million included in Other operating expense (income), net in the Consolidated Statements of Operations, calculated as the difference between the fair value of consideration received and the carrying amount of the net assets sold. The fair value of the contingent consideration on the closing date was $2.4 million and is payable in five installments beginning with the commencement of an initial drilling program at the San Luis project and ending on the second anniversary of commercial production. The consideration received does not include certain payments that are contingent upon completion of a feasibility study and commercial production as the consideration is variable and constrained under ASC 606. The consideration will be recorded as a gain in the period in which it is probable that a significant reversal will not occur, which is expected upon advancement of the San Luis project and achievement of project development milestones. The assets were included in Corporate and other in Note 4. The Company retained a 4.0% net smelter return royalty (“NSR”) on the San Luis project, half of which can be repurchased by Highlander Silver for $15.0 million at any time until the commencement of construction.