Acquisitions - Purchase Price Allocation (Details) - USD ($) $ / shares in Units, $ in Thousands			3 Months Ended
		Feb. 14, 2025	Mar. 31, 2025	Dec. 31, 2024
Assets:
Short-term receivables			$ 22,996
LIABILITIES
Goodwill			$ 567,045	$ 0
Common stock, shares issued (in shares)			639,060,751	399,235,632
Common Stock | Royalty Settlement [Domain]
LIABILITIES
Common stock issued for investment (in shares)			595,000
SilverCrest
Business Acquisition [Line Items]
Common shares issued (value)		$ 1,580,000	$ 1,581,983
Fair value of replacement stock-based compensation awarded(1)	[1]		8,566
Fair value of Coeur payable to SilverCrest repurchased			72,311
Total purchase price			1,518,238
Assets:
Cash and cash equivalents			103,441
Inventory			153,826
Prepaid expenses and other			15,213
Property, plant and equipment and mining properties			1,005,828
Other			5,596
Total Assets			1,306,900
LIABILITIES
Accounts payable			16,774
Accrued liabilities and other			24,866
Debt			846
Reclamation			8,644
Deferred tax liabilities	[2]		286,225
Other long-term liabilities			18,354
Total liabilities			355,709
Net assets acquired			951,191
Goodwill			567,047
Net assets acquired			$ 1,518,238
Common stock, shares issued (in shares)		239,331,799	239,331,799
Shares issued (in dollars per share)			$ 6.61
SilverCrest | Common Stock | SilverCrest Acquisition
LIABILITIES
Common stock issued for investment (in shares)			200,000
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period			600,000

[1] As of March 31, 2025, 0.2 million common shares were issued related to the exercise of 0.6 million replacement options.

[2] Deferred income tax liabilities represent the future tax expense associated with the differences between the preliminary fair value allocated to assets (excluding goodwill) and liabilities and a tax basis increase to the preliminary fair value of the assets acquired in Mexico and the historical carryover tax basis of assets and liabilities in all other jurisdictions. No deferred tax liability is recognized for the basis difference inherent in the preliminary fair value allocated to goodwill.