Subsequent Events	3 Months Ended
Mar. 31, 2013
Subsequent Events [Abstract]
SUBSEQUENT EVENTS	SUBSEQUENT EVENTS Orko Aquisition On February 20, 2013 the Company entered into an Arrangement Agreement among the Company, 0961994 B.C. Ltd., a corporation wholly-owned by the Company and incorporated under the laws of British Columbia, and Orko Silver Corp., a corporation incorporated under the laws of British Columbia engaged in the acquisition and exploration of mineral properties(“Orko” and, together with the Company and 0961994 B.C. Ltd., the “Parties”), and on March 12, 2013, the Parties entered into a Memorandum of Agreement amending certain terms of the Arrangement Agreement. Pursuant to the Arrangement Agreement, as amended, the Company acquired ("the Arrangement") all of the issued and outstanding common shares of Orko pursuant to a Plan of Arrangement under the Business Corporations Act (British Columbia). Orko’s shareholders adopted and approved the Arrangement on April 10, 2013. The Supreme Court of British Columbia issued a final order approving the Plan of Arrangement on April 12, 2013. On April 16, 2013, the Company’s acquisition of the equity interests of Orko from the Orko shareholders was consummated by way of the Plan of Arrangement and Orko became a wholly-owned subsidiary of the Company. As a result of the completion of the arrangement, Coeur now owns all of the issued and outstanding shares of Orko. As consideration, Coeur paid a total of CAD $100 million in cash and issued an aggregate 11,572,918 common shares of Coeur and 1,588,768 warrants to acquire common shares of Coeur. Letter of Intent to Sell Certain Assets On April 11, 2013, the Company announced that it has entered into a letter of intent with XDM Royalty Corp. (“XDM”) to sell its interest in the silver production and reserves from the Endeavor mine in Australia (the “Endeavor silver stream”) and the royalty from the Cerro Bayo gold and silver mine in southern Chile (the “Cerro Bayo royalty”) for up to $67 million in total cash and XDM equity consideration. At March 31, 2013, the carrying value of the Endeavor silver stream, consisting of capitalized mineral interest acquisition costs, was $28.6 million and the Cerro Bayo royalty was $6.1 million. On May 9, 2013, the Company announced that the letter of intent with XDM has been terminated due to the dislocation in metals markets, and that the parties are continuing discussions to possibly reach a revised agreement.

SUBSEQUENT EVENTS

Orko Aquisition

On February 20, 2013 the Company entered into an Arrangement Agreement among the Company, 0961994 B.C. Ltd., a corporation wholly-owned by the Company and incorporated under the laws of British Columbia, and Orko Silver Corp., a corporation incorporated under the laws of British Columbia engaged in the acquisition and exploration of mineral properties(“Orko” and, together with the Company and 0961994 B.C. Ltd., the “Parties”), and on March 12, 2013, the Parties entered into a Memorandum of Agreement amending certain terms of the Arrangement Agreement. Pursuant to the Arrangement Agreement, as amended, the Company acquired ("the Arrangement") all of the issued and outstanding common shares of Orko pursuant to a Plan of Arrangement under the Business Corporations Act (British Columbia). Orko’s shareholders adopted and approved the Arrangement on April 10, 2013.

The Supreme Court of British Columbia issued a final order approving the Plan of Arrangement on April 12, 2013. On April 16, 2013, the Company’s acquisition of the equity interests of Orko from the Orko shareholders was consummated by way of the Plan of Arrangement and Orko became a wholly-owned subsidiary of the Company. As a result of the completion of the arrangement, Coeur now owns all of the issued and outstanding shares of Orko. As consideration, Coeur paid a total of CAD $100 million in cash and issued an aggregate 11,572,918 common shares of Coeur and 1,588,768 warrants to acquire common shares of Coeur.

Letter of Intent to Sell Certain Assets

On April 11, 2013, the Company announced that it has entered into a letter of intent with XDM Royalty Corp. (“XDM”) to sell its interest in the silver production and reserves from the Endeavor mine in Australia (the “Endeavor silver stream”) and the royalty from the Cerro Bayo gold and silver mine in southern Chile (the “Cerro Bayo royalty”) for up to $67 million in total cash and XDM equity consideration.

At March 31, 2013, the carrying value of the Endeavor silver stream, consisting of capitalized mineral interest acquisition costs, was $28.6 million and the Cerro Bayo royalty was $6.1 million.

On May 9, 2013, the Company announced that the letter of intent with XDM has been terminated due to the dislocation in metals markets, and that the parties are continuing discussions to possibly reach a revised agreement.