Net Income (Loss) Per Share (Details) - USD ($) $ / shares in Units, $ in Thousands		3 Months Ended				6 Months Ended
	Mar. 17, 2023	Jun. 30, 2024	Mar. 31, 2024	Jun. 30, 2023	Mar. 31, 2023	Jun. 30, 2024	Jun. 30, 2023	Feb. 26, 2024	Dec. 31, 2023
Earnings Per Share (Textual) [Abstract]
Number of antidilutive shares of common stock equivalents		29,130		2,000,000.0		4,600,000	1,700,000
Common stock, shares issued (in shares)		399,240,520				399,240,520		7,704,725	386,282,957
Common stock, par value (in dollars per share)	$ 0.01	$ 0.01				$ 0.01		$ 0.01	$ 0.01
Common stock issued for investment (in shares)	32,861,580
Net Income (Loss) Attributable to Coeur Stockholders
NET INCOME (LOSS)		$ 1,426	$ (29,117)	$ (32,412)	$ (24,586)	$ (27,691)	$ (56,998)
Weighted Average Number of Shares Outstanding
Weighted Average Number of Shares Outstanding, Basic		393,838,000		333,082,000		389,403,000	317,105,000
Incremental Common Shares Attributable to Dilutive Effect of Share-based Payment Arrangements		6,071,000		0		0	0
Weighted Average Number of Shares Outstanding, Diluted		399,909,000		333,082,000		389,403,000	317,105,000
Basic EPS
Earnings Per Share, Basic		$ 0.00		$ (0.10)		$ (0.07)	$ (0.18)
Diluted EPS
Earnings Per Share, Diluted		$ 0.00		$ (0.10)		$ (0.07)	$ (0.18)
Private Placement
Earnings Per Share (Textual) [Abstract]
Proceeds from (Repurchase of) Equity			23,700
Proceeds from repurchase			$ 900