2.2.0.25falsefalse1110 - Disclosure - Gold Stream Arrangementtruefalsefalse1falsefalseUSDfalsefalse1/1/2010 - 12/31/2010 USD ($) USD ($) / shares $D2010http://www.sec.gov/CIK0001415020duration2010-01-01T00:00:002010-12-31T00:00:00USDStandardhttp://www.xbrl.org/2003/iso4217USDiso42170USDPerShareDividehttp://www.xbrl.org/2003/iso4217USDiso4217http://www.xbrl.org/2003/instancesharesxbrli0SharesStandardhttp://www.xbrl.org/2003/instancesharesxbrli0USDUSD$2true0tc_GoldStreamArrangementDisclosureAbstracttcfalsenadurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse00falsefalsefalsefalsefalseOtherxbrli:stringItemTypestringNo definition available.falsefalseGold Stream Arrangement3false0tc_GoldStreamArrangementTextBlocktcfalsenadurationThis element represents details of the purchase and sale agreement for the sale of payable gold related to the Company's Mt....falsefalsefalsefalsefalsefalsefalsefalsefalsefalseterselabel1falsefalsefalse00<table style="font-size:10pt; font-family:'Times New Roman',times,serif;"> <tr> <td> 11. Gold Stream Arrangement         TCM entered into a purchase and sale agreement with a subsidiary of Royal Gold, Inc. ("RG") that provides for, among other things, the purchase by RG of 25% of the payable gold (the "Gold Stream Transaction") produced by Terrane's Mt. Milligan project. The Gold Stream Transaction was contingent upon the successful closing of the Terrane acquisition. The Gold Stream Transaction is secured by the Mt. Milligan asset until the deposits received have been reduced to nil, which is subject to subordination to project or corporate financings. An inter-creditor agreement was executed with RG in connection with the Credit Facility discussed in Note 10.         Under the terms of the Gold Stream Transaction, upon closing of the Terrane acquisition, TCM received an initial cash deposit of $226.5 million. TCM will receive future staged cash deposits from RG of $85.0 million during the mine construction of Mt. Milligan, bringing the total cash deposits received from RG to $311.5 million. The deposits will be offset against RG's purchase of gold under the agreement until the deposit is completely reduced. For each of the first 550,000 ounces of gold delivered to RG, TCM will receive cash equal to the lesser of $400 per ounce or the prevailing market price. To the extent that the prevailing market price exceeds $400 per ounce, the deposit will be reduced. For each ounce of gold delivered to RG beyond the delivery of 550,000 ounces, TCM will receive cash equal to the lesser of $450 per ounce or the prevailing market price. To the extent that the prevailing market price exceeds $450 per ounce, the deposit will be reduced. Once the deposit is reduced to nil, RG will pay $450 per ounce, subject to the first 550,000 ounces of gold being delivered. If at the end of the initial 50-year term of the agreement the deposit has not been reduced to nil, TCM is to refund the outstanding portion of the deposit to RG.         The deposits received under the Gold Stream Transaction will be classified as a long-term liability on TCM's consolidated balance sheet. Once Mt. Milligan is in production and begins selling gold ounces to RG, the liability will be amortized based on the gold delivered. </td></tr></table> 11. Gold Stream Arrangement         TCM entered into a purchase and sale agreement with a subsidiary of RoyalfalsefalsefalsefalsefalseOtherus-types:textBlockItemTypestringThis element represents details of the purchase and sale agreement for the sale of payable gold related to the Company's Mt. Milligan project, deposits received along with terms of adjustments of the purchase price and also the accounting treatment.No authoritative reference available.falsefalseGold Stream Arrangement12Gold Stream ArrangementUnKnownUnKnownUnKnownUnKnownfalsetrue