Litigation and Other Events	9 Months Ended
Sep. 30, 2011
Commitments and Contingencies [Abstract]
LITIGATION AND OTHER EVENTS	NOTE 19 – LITIGATION AND OTHER EVENTS Idaho, Colorado, Maine and Washington Sites Related to Callahan Mining Corporation During 1991, the Company acquired all of the outstanding common stock of Callahan Mining Corporation. During 2001, the U.S. Forest Service made a formal request for information regarding the Deadwood Mine site located in central Idaho. Callahan Mining Corporation had operated at this site during the 1940s. The Forest Service believes that some cleanup action is required at the location. However, the Company did not acquire Callahan until 1991, more than 40 years after Callahan disposed of its interest in the Deadwood property. The Company did not make any decisions with respect to generation, transport or disposal of hazardous waste at the site. Therefore, the Company believes that it is not liable for any cleanup, and if Callahan might be liable, it has no substantial assets with which to satisfy any such liability. To date, no claim has been made by the United States for any cleanup costs against either the Company or Callahan. During 2002, the U.S. Environmental Protection Agency, or EPA, made a formal request for information regarding a Callahan mine site in the State of Maine. Callahan operated there in the late 1960s, shut the operations down in the early 1970s and disposed of the property. The EPA contends that some cleanup action is warranted at the site, and listed it on the National Priorities List in late 2002. In 2009, the EPA and the State of Maine made additional formal requests for information relating to the Maine Callahan mine site. The Company believes that because it made no decisions with respect to generation, transport or disposal of hazardous waste at this location, it is not liable for any cleanup costs. If Callahan might have liability, it has no substantial assets with which to satisfy such liability. To date, no claim has been made for any cleanup costs against either the Company or Callahan. In January 2003, the Forest Service made a formal request for information regarding a Callahan mine site in the State of Colorado known as the Akron Mine site. Callahan operated there in approximately the late 1930s through the 1940s, and, to the Company’s knowledge, disposed of the property. The Company is not aware of what, if any, cleanup action the Forest Service is contemplating. However, the Company did not make decisions with respect to generation, transport or disposal of hazardous waste at this location, and therefore believes it is not liable for any cleanup costs. If Callahan might have liability, it has no substantial assets with which to satisfy such liability. To date, no claim has been made for any cleanup costs against either the Company or Callahan. By letter dated February 25, 2010, the State of Washington Department of Ecology notified Callahan Mining Corporation that it found credible evidence supporting a conclusion that Callahan is a potentially liable person for a release of a hazardous substance at the Van Stone mine located approximately 21 miles northeast of Colville, Washington. The rights and liabilities of a “potentially liable person” are described under Washington law. The Department of Ecology alleges that Callahan sold the property in 1990. This is prior to Coeur’s acquisition of Callahan, and therefore Coeur has no knowledge of the facts and circumstances surrounding Washington’s allegations. The Company did not make decisions with respect to generation, transport or disposal of hazardous waste at this location. If Callahan might have liability, it has no substantial assets with which to satisfy it. To date no claim has been made for any cleanup costs against Callahan. Temporary Restriction on Mining above 4,400 Meters at San Bartolomé On October 14, 2009, the Bolivian state-owned mining organization, COMIBOL, announced by resolution that it was temporarily suspending mining activities above the elevation of 4,400 meters above sea level while stability studies of Cerro Rico mountain are undertaken. The Company holds rights to mine above this elevation under valid contracts backed by Supreme Decree with COMIBOL as well as contracts with local mining cooperatives that hold their rights through COMIBOL. The Company temporarily adjusted its San Bartolomé mine plan to confine mining activities to the ore deposits below 4,400 meters above sea level and timely notified COMIBOL of the need to lift the restriction. In March 2010, the San Bartolomé mine began mining operations above the 4,400 meter level in high grade material located in the Huacajchi deposit, which was confirmed to be excluded from the October 2009 resolution, under an agreement with the cooperatives. Other mining areas above the 4,400 meter level continue to be suspended. The mine plan adjustment may reduce production until the Company is able to resume mining above 4,400 meters. It is uncertain at this time how long the temporary suspension will remain in place. If the restriction is not lifted, the Company may need to write down the carrying value of the asset.

Litigation and Other Events

9 Months Ended

Sep. 30, 2011

Commitments and Contingencies [Abstract]

NOTE 19 – LITIGATION AND OTHER EVENTS

Idaho, Colorado, Maine and Washington Sites Related to Callahan Mining Corporation

During 1991, the Company acquired all of the outstanding common stock of Callahan Mining Corporation.

During 2001, the U.S. Forest Service made a formal request for information regarding the Deadwood Mine site located in central Idaho. Callahan Mining Corporation had operated at this site during the 1940s. The Forest Service believes that some cleanup action is required at the location. However, the Company did not acquire Callahan until 1991, more than 40 years after Callahan disposed of its interest in the Deadwood property. The Company did not make any decisions with respect to generation, transport or disposal of hazardous waste at the site. Therefore, the Company believes that it is not liable for any cleanup, and if Callahan might be liable, it has no substantial assets with which to satisfy any such liability. To date, no claim has been made by the United States for any cleanup costs against either the Company or Callahan.

During 2002, the U.S. Environmental Protection Agency, or EPA, made a formal request for information regarding a Callahan mine site in the State of Maine. Callahan operated there in the late 1960s, shut the operations down in the early 1970s and disposed of the property. The EPA contends that some cleanup action is warranted at the site, and listed it on the National Priorities List in late 2002. In 2009, the EPA and the State of Maine made additional formal requests for information relating to the Maine Callahan mine site. The Company believes that because it made no decisions with respect to generation, transport or disposal of hazardous waste at this location, it is not liable for any cleanup costs. If Callahan might have liability, it has no substantial assets with which to satisfy such liability. To date, no claim has been made for any cleanup costs against either the Company or Callahan.

In January 2003, the Forest Service made a formal request for information regarding a Callahan mine site in the State of Colorado known as the Akron Mine site. Callahan operated there in approximately the late 1930s through the 1940s, and, to the Company’s knowledge, disposed of the property. The Company is not aware of what, if any, cleanup action the Forest Service is contemplating. However, the Company did not make decisions with respect to generation, transport or disposal of hazardous waste at this location, and therefore believes it is not liable for any cleanup costs. If Callahan might have liability, it has no substantial assets with which to satisfy such liability. To date, no claim has been made for any cleanup costs against either the Company or Callahan.

By letter dated February 25, 2010, the State of Washington Department of Ecology notified Callahan Mining Corporation that it found credible evidence supporting a conclusion that Callahan is a potentially liable person for a release of a hazardous substance at the Van Stone mine located approximately 21 miles northeast of Colville, Washington. The rights and liabilities of a “potentially liable person” are described under Washington law. The Department of Ecology alleges that Callahan sold the property in 1990. This is prior to Coeur’s acquisition of Callahan, and therefore Coeur has no knowledge of the facts and circumstances surrounding Washington’s allegations. The Company did not make decisions with respect to generation, transport or disposal of hazardous waste at this location. If Callahan might have liability, it has no substantial assets with which to satisfy it. To date no claim has been made for any cleanup costs against Callahan.

Temporary Restriction on Mining above 4,400 Meters at San Bartolomé

On October 14, 2009, the Bolivian state-owned mining organization, COMIBOL, announced by resolution that it was temporarily suspending mining activities above the elevation of 4,400 meters above sea level while stability studies of Cerro Rico mountain are undertaken. The Company holds rights to mine above this elevation under valid contracts backed by Supreme Decree with COMIBOL as well as contracts with local mining cooperatives that hold their rights through COMIBOL. The Company temporarily adjusted its San Bartolomé mine plan to confine mining activities to the ore deposits below 4,400 meters above sea level and timely notified COMIBOL of the need to lift the restriction.

In March 2010, the San Bartolomé mine began mining operations above the 4,400 meter level in high grade material located in the Huacajchi deposit, which was confirmed to be excluded from the October 2009 resolution, under an agreement with the cooperatives. Other mining areas above the 4,400 meter level continue to be suspended. The mine plan adjustment may reduce production until the Company is able to resume mining above 4,400 meters. It is uncertain at this time how long the temporary suspension will remain in place. If the restriction is not lifted, the Company may need to write down the carrying value of the asset.