Supplemental Guarantor Information Condensed Consolidated Statements of Comprehensive Income (Loss) (Details) - USD ($) $ in Thousands	3 Months Ended				6 Months Ended
	Jun. 30, 2026	Mar. 31, 2026	Jun. 30, 2025	Mar. 31, 2025	Jun. 30, 2026	Jun. 30, 2025
Condensed Financial Statements, Captions [Line Items]
Revenue	$ 1,085,592		$ 480,650		$ 1,941,784	$ 840,712
Net income	$ 121,853	$ 246,761	$ 70,726	$ 33,353	368,614	$ 104,079
Coeur Mining, Inc. | Subsidiary Guarantors
Condensed Financial Statements, Captions [Line Items]
Revenue					0
Gross Profit					(445)
Net income					368,614
Coeur Mining, Inc. | 2032 Subsidiary Guarantors
Condensed Financial Statements, Captions [Line Items]
Revenue					0
Gross Profit					(445)
Net income					368,614
New Gold Inc. | Subsidiary Guarantors
Condensed Financial Statements, Captions [Line Items]
Revenue					1,213,427
Gross Profit					245,213
Net income					124,203
New Gold Inc. | 2032 Subsidiary Guarantors
Condensed Financial Statements, Captions [Line Items]
Revenue					1,213,427
Gross Profit					245,213
Net income					124,203
New Gold Inc. | New Gold, Inc.
Condensed Financial Statements, Captions [Line Items]
Revenue					899,185
Gross Profit					111,246
Net income					$ (83,427)