v3.26.1
Segmented Information - Schedule of Operating Segments (Detail) - USD ($)
$ in Thousands
 3 Months Ended 6 Months Ended
Jun. 30, 2026
Jun. 30, 2025
Jun. 30, 2026
Jun. 30, 2025
Dec. 31, 2025
Disclosure of operating segments [line items]          
Sales $ 929,201 $ 503,218 $ 1,830,670 $ 973,629  
Cost of Sales 118,843 75,169 244,086 149,805  
Depletion 122,502 75,002 199,354 151,695  
Net earnings 543,236 292,270 1,125,280 546,254  
Cash Flow From Operations 649,518 414,959 1,415,340 775,752  
Total assets 12,161,186 7,982,385 12,161,186 7,982,385 $ 9,125,781
General and administrative material reconciling items [member]          
Disclosure of operating segments [line items]          
Net earnings (11,327) (11,022) (24,299) (24,547)  
Cash Flow From Operations (10,489) (10,498) (30,944) (29,875)  
Finance costs material reconciling items [member]          
Disclosure of operating segments [line items]          
Net earnings (31,097) (1,427) (32,502) (2,868)  
Cash Flow From Operations (30,780) (2,025) (31,852) (3,186)  
Other material reconciling Items [member]          
Disclosure of operating segments [line items]          
Net earnings 9,071 9,736 26,807 17,256  
Cash Flow From Operations 3,522 8,179 17,188 16,964  
Income tax recovery material reconciling items [member]          
Disclosure of operating segments [line items]          
Net earnings (101,796) (45,734) (210,876) (88,513)  
Cash Flow From Operations (109,262) (949) (109,444) (3,182)  
Aggregate material reconciling items [member]          
Disclosure of operating segments [line items]          
Net earnings (144,620) (60,777) (261,950) (125,875)  
Cash Flow From Operations (150,908) (7,389) (189,615) (41,463)  
Total assets 429,980 1,312,678 429,980 1,312,678  
Share based compensation material reconciling items [Member]          
Disclosure of operating segments [line items]          
Net earnings (4,806) (9,962) (14,918) (22,143)  
Cash Flow From Operations     (29,257) (17,209)  
Donations and community investments material reconciling items [Member]          
Disclosure of operating segments [line items]          
Net earnings (4,665) (2,368) (6,162) (5,060)  
Cash Flow From Operations (3,899) (2,096) (5,306) (4,975)  
Gold interests [member]          
Disclosure of operating segments [line items]          
Sales 427,785 328,354 888,823 648,049  
Cost of Sales 52,210 47,526 106,600 97,901  
Depletion 48,369 41,803 97,620 87,992  
Net earnings 327,206 239,025 684,603 462,156  
Cash Flow From Operations 374,651 281,837 784,323 552,007  
Total assets 5,406,362 4,510,395 5,406,362 4,510,395  
Gold interests [member] | Salobo [member]          
Disclosure of operating segments [line items]          
Sales 312,112 252,997 596,292 493,802  
Cost of Sales 30,366 32,734 55,780 68,676  
Depletion 28,333 30,720 52,045 62,412  
Net earnings 253,413 189,543 488,467 362,714  
Cash Flow From Operations 278,505 220,263 540,512 425,126  
Total assets 2,568,665 2,677,073 2,568,665 2,677,073  
Gold interests [member] | Sudbury [member]          
Disclosure of operating segments [line items]          
Sales 19,891 [1] 9,597 [2] 41,424 [1] 25,714 [2]  
Cost of Sales 1,788 [1] 1,140 [2] 3,553 [1] 3,393 [2]  
Depletion 6,255 [1] 3,778 [2] 12,427 [1] 11,244 [2]  
Net earnings 11,848 [1] 4,679 [2] 25,444 [1] 11,077 [2]  
Cash Flow From Operations 18,041 [1] 8,457 [2] 37,893 [1] 22,307 [2]  
Total assets 206,067 [1] 230,307 [2] 206,067 [1] 230,307 [2]  
Gold interests [member] | Constancia [member]          
Disclosure of operating segments [line items]          
Sales 13,313 22,629 66,038 50,752  
Cost of Sales 1,283 2,899 5,951 7,054  
Depletion 1,012 2,203 4,696 5,363  
Net earnings 11,018 17,527 55,391 38,335  
Cash Flow From Operations 12,030 19,730 60,087 43,698  
Total assets 47,588 58,963 47,588 58,963  
Gold interests [member] | Other gold interests [member]          
Disclosure of operating segments [line items]          
Sales 22,366 [3] 3,471 [4] 57,082 [3] 6,462 [4]  
Cost of Sales 4,531 [3] 1,446 [4] 12,501 [3] 2,682 [4]  
Depletion 5,694 [3] 391 [4] 14,319 [3] 779 [4]  
Net earnings 12,141 [3] 1,634 [4] 30,262 [3] 3,001 [4]  
Cash Flow From Operations 17,835 [3] 3,034 [4] 46,095 [3] 5,653 [4]  
Total assets 1,662,005 [3] 592,372 [4] 1,662,005 [3] 592,372 [4]  
Gold interests [member] | San Dimas [member]          
Disclosure of operating segments [line items]          
Sales 26,642 23,982 63,790 49,733  
Cost of Sales 3,878 4,632 8,812 10,341  
Depletion 2,562 2,097 5,847 4,694  
Net earnings 20,202 17,253 49,131 34,698  
Cash Flow From Operations 22,764 19,350 54,978 39,392  
Total assets 119,371 131,787 119,371 131,787  
Gold interests [member] | Stillwater [member]          
Disclosure of operating segments [line items]          
Sales 5,676 4,594 12,428 10,188  
Cost of Sales 1,062 818 2,277 1,786  
Depletion 727 583 1,522 1,402  
Net earnings 3,887 3,193 8,629 7,000  
Cash Flow From Operations 4,614 3,776 10,151 8,402  
Total assets 202,680 206,058 202,680 206,058  
Gold interests [member] | Platreef [Member]          
Disclosure of operating segments [line items]          
Total assets 275,702 275,702 275,702 275,702  
Gold interests [member] | Blackwater [Member]          
Disclosure of operating segments [line items]          
Sales 27,785 11,084 51,769 11,398  
Cost of Sales 9,302 3,857 17,726 3,969  
Depletion 3,786 2,031 6,764 2,098  
Net earnings 14,697 5,196 27,279 5,331  
Cash Flow From Operations 20,862 7,227 34,607 7,429  
Total assets 324,284 338,133 324,284 338,133  
Silver interests [member]          
Disclosure of operating segments [line items]          
Sales 478,758 165,739 905,528 310,677  
Cost of Sales 62,413 25,934 130,751 49,122  
Depletion 66,754 28,854 90,142 55,874  
Net earnings 349,591 110,951 684,635 205,681  
Cash Flow From Operations 410,425 135,490 794,777 254,276  
Total assets 5,765,818 1,577,424 5,765,818 1,577,424  
Silver interests [member] | Constancia [member]          
Disclosure of operating segments [line items]          
Sales 33,055 21,138 89,999 44,514  
Cost of Sales 2,862 3,911 7,124 8,481  
Depletion 2,910 3,814 7,242 8,269  
Net earnings 27,283 13,413 75,633 27,764  
Cash Flow From Operations 30,193 17,227 82,875 36,034  
Total assets 144,161 157,109 144,161 157,109  
Silver interests [member] | Penasquito [member]          
Disclosure of operating segments [line items]          
Sales 198,793 71,467 320,748 134,738  
Cost of Sales 12,582 9,632 19,254 18,641  
Depletion 13,860 10,261 21,210 19,857  
Net earnings 172,351 51,574 280,284 96,240  
Cash Flow From Operations 186,211 61,835 301,494 116,097  
Total assets 185,656 224,608 185,656 224,608  
Silver interests [member] | Antamina [member]          
Disclosure of operating segments [line items]          
Sales 150,549 36,303 277,563 64,614  
Cost of Sales 28,510 7,355 55,340 13,018  
Depletion 44,716 9,077 51,322 16,556  
Net earnings 77,323 19,871 170,901 35,040  
Cash Flow From Operations 122,039 28,948 222,223 51,596  
Total assets 4,708,329 474,215 4,708,329 474,215  
Silver interests [member] | Other silver interests [member]          
Disclosure of operating segments [line items]          
Sales 87,172 [5] 31,592 [6] 197,783 [5] 61,572 [6]  
Cost of Sales 16,769 [5] 4,101 [6] 45,581 [5] 8,047 [6]  
Depletion 4,245 [5] 4,321 [6] 8,388 [5] 9,811 [6]  
Net earnings 66,158 [5] 23,170 [6] 143,814 [5] 43,714 [6]  
Cash Flow From Operations 64,443 [5] 22,961 [6] 172,291 [5] 46,030 [6]  
Total assets 562,150 [5] 551,926 [6] 562,150 [5] 551,926 [6]  
Silver interests [member] | Blackwater [Member]          
Disclosure of operating segments [line items]          
Sales 9,189 5,239 19,435 5,239  
Cost of Sales 1,690 935 3,452 935  
Depletion 1,023 1,381 1,980 1,381  
Net earnings 6,476 2,923 14,003 2,923  
Cash Flow From Operations 7,539 4,519 15,894 4,519  
Total assets 165,522 169,566 165,522 169,566  
Palladium interest [member]          
Disclosure of operating segments [line items]          
Sales 2,957 2,564 7,866 4,936  
Cost of Sales 547 450 1,448 873  
Depletion 1,018 1,105 2,448 2,160  
Net earnings 1,392 1,009 3,970 1,903  
Cash Flow From Operations 2,410 2,114 6,418 4,063  
Total assets 285,258 289,833 285,258 289,833  
Palladium interest [member] | Stillwater [member]          
Disclosure of operating segments [line items]          
Sales 2,957 2,564 7,866 4,936  
Cost of Sales 547 450 1,448 873  
Depletion 1,018 1,105 2,448 2,160  
Net earnings 1,392 1,009 3,970 1,903  
Cash Flow From Operations 2,410 2,114 6,418 4,063  
Total assets 206,444 211,019 206,444 211,019  
Palladium interest [member] | Platreef [Member]          
Disclosure of operating segments [line items]          
Total assets 78,814 78,814 78,814 78,814  
Platinum Interests [member]          
Disclosure of operating segments [line items]          
Total assets 67,035 67,035 67,035 67,035  
Platinum Interests [member] | Marathon [Member]          
Disclosure of operating segments [line items]          
Total assets 9,451 9,451 9,451 9,451  
Platinum Interests [member] | Platreef [Member]          
Disclosure of operating segments [line items]          
Total assets 57,584 57,584 57,584 57,584  
Cobalt Interests [member] | Voisey's Bay [member]          
Disclosure of operating segments [line items]          
Sales 19,701 6,561 28,453 9,967  
Cost of Sales 3,673 1,259 5,287 1,909  
Depletion 6,361 3,240 9,144 5,669  
Net earnings 9,667 2,062 14,022 2,389  
Cash Flow From Operations 12,940 2,907 19,437 6,869  
Total assets 206,733 225,020 206,733 225,020  
Mineral Stream Interests [member]          
Disclosure of operating segments [line items]          
Sales 929,201 503,218 1,830,670 973,629  
Cost of Sales 118,843 75,169 244,086 149,805  
Depletion 122,502 75,002 199,354 151,695  
Net earnings 687,856 353,047 1,387,230 672,129  
Cash Flow From Operations 800,426 422,348 1,604,955 817,215  
Total assets $ 11,731,206 $ 6,669,707 $ 11,731,206 $ 6,669,707  
[1] Comprised of the operating Coleman, Copper Cliff, Garson, Creighton, Stobie and Totten gold interests as well as the non-operating Victor gold interest.
[2] Comprised of the operating Coleman, Copper Cliff, Garson, Creighton and Totten gold interests as well as the non-operating Stobie and Victor gold interests.
[3] Where a gold interest represents less than 10% of the Company’s sales, gross margin or aggregate asset book value and is not evaluated on a regular basis by the Company’s CEO for the purpose of assessing performance, the gold interest has been summarized under Other gold interests. Other gold interests comprised of the Copper World, Marmato, Santo Domingo, Fenix, El Domo, Marathon, Goose, Cangrejos, Curraghinalt, Kudz Ze Kayah, Koné, Kurmuk, Spring Valley, Hemlo and Jervois gold interests.
[4] Where a gold interest represents less than 10% of the Company’s sales, gross margin or aggregate asset book value and is not evaluated on a regular basis by the Company’s CEO for the purpose of assessing performance, the gold interest has been summarized under Other gold interests. Other gold interests comprised of the Marmato, Copper World, Santo Domingo, Fenix, El Domo, Marathon, Goose, Cangrejos, Curraghinalt, Kudz Ze Kayah, Koné and Kurmuk gold interests.
[5] Where a silver interest represents less than 10% of the Company’s sales, gross margin or aggregate asset book value and is not evaluated on a regular basis by the Company’s CEO for the purpose of assessing performance, the silver interest has been summarized under Other silver interests. Other silver interests comprised of the Los Filos, Zinkgruvan, Stratoni, Neves-Corvo, Aljustrel, El Alto, Copper World, Navidad, Marmato, Cozamin , El Domo, Mineral Park, Kudz Ze Kayah and Jervois silver interests.
[6] Where a silver interest represents less than 10% of the Company’s sales, gross margin or aggregate asset book value and is not evaluated on a regular basis by the Company’s CEO for the purpose of assessing performance, the silver interest has been summarized under Other silver interests. Other silver interests comprised of the Los Filos, Zinkgruvan, Neves-Corvo, Marmato, Cozamin, Stratoni, Aljustrel, El Alto, Copper World, Navidad, El Domo, Mineral Park and Kudz Ze Kayah silver interests.