Inventory and Ore on Leach Pads (Details) - USD ($) $ in Thousands		Jun. 30, 2026	Dec. 31, 2025
Inventory [Line Items]
Inventory, Finished Goods, Net of Reserves		$ 21,684	$ 3,507
Stockpile ore	[1]	178,392	85,450
Other Inventory, Net of Reserves		54,352	15,164
Inventory, Supplies, Net of Reserves		128,992	59,209
Inventory		383,420	163,330
Ore on Leach Pad, Current		207,939	157,461
Ore on leach pads, noncurrent		162,042	119,446
Inventory, Ore Stockpiles on Leach Pads, Gross		369,981	276,907
Long-term stockpile	[2]	281,078	42,076
Inventory and Ore on Leach Pads		1,034,479	482,313
Las Chispas
Inventory [Line Items]
Stockpile ore		90,300	73,600
Kensington
Inventory [Line Items]
Stockpile ore		1,800	2,300
Palmarejo
Inventory [Line Items]
Stockpile ore		1,100	1,100
Wharf
Inventory [Line Items]
Stockpile ore		3,700	8,400
New Afton
Inventory [Line Items]
Stockpile ore		7,300
Rainy River
Inventory [Line Items]
Stockpile ore		74,100
Long-term stockpile		239,000
Rochester
Inventory [Line Items]
Long-term stockpile		$ 42,100	$ 42,100

[1] Includes $90.3 million, $74.1 million, $7.3 million, $3.7 million, $1.8 million, and $1.1 million at Las Chispas, Rainy River, New Afton, Wharf, Kensington and Palmarejo at June 30, 2026, respectively. Includes $73.6 million, $8.4 million, $2.3 million, and $1.1 million at Las Chispas, Wharf, Kensington and Palmarejo at December 31, 2025, respectively.

[2] Includes $239.0 million and $42.1 million at Rainy River and Rochester at June 30, 2026, respectively. Includes $42.1 million at Rochester at December 31, 2025