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Donations and Community Investments - Summary Of Donations and Community Investments (Detail) - USD ($)
$ in Thousands
 3 Months Ended 6 Months Ended
Jun. 30, 2026
Jun. 30, 2025
Jun. 30, 2026
Jun. 30, 2025
Disclosure of Donations and Community Investments [Line Items]        
Local donations and community investments [1] $ 2,343 $ 793 $ 3,100 $ 1,625
Partner donations and community investments [2] 1,153 1,551 1,815 2,308
Environmental and innovation investments [3] 1,169 24 1,247 1,127
Total donations and community investments $ 4,665 $ 2,368 $ 6,162 $ 5,060
[1] The Local Community Investment Program supports organizations in Vancouver and the Cayman Islands, where Wheaton’s offices are located.
[2] The Partner Community Investment Program supports the communities influenced by Mining Partners’ operations.
[3] Includes the Company’s funding of initiatives that seek to reduce environmental impacts and support innovation and efficiency in mining, including costs associated with the Future of Mining Challenge.