SEGMENTED INFORMATION (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended	6 Months Ended
Jun. 30, 2011	Jun. 30, 2010	Jun. 30, 2011	Jun. 30, 2010	Dec. 31, 2010
SEGMENTED INFORMATION
Minimum required percentage of combined revenue, profit or loss or total assets of reported operating segments (as a percent)	10.00%		10.00%
Segment reporting Information
Goodwill	$ 200,064		$ 200,064		$ 200,064
Revenues from Mining Operations	433,691	347,456	845,759	585,039
Production Costs	212,754	166,573	411,321	284,800
Amortization	59,235	44,003	121,164	74,506
Exploration and Corporate Development	17,289	12,955	34,267	20,459
Foreign currency translation loss (gain)	2,713	(17,427)	16,778	(8,526)
Segment Income (Loss)	141,700	141,352	262,229	213,800
Interest and sundry income (loss)	(224)	93	24	153
Gain on sale of available-for-sale securities	420		4,814	346
Gain (Loss) on derivative financial instruments	981	6,395	2,332	7,162
General and administrative expenses	(24,122)	(23,240)	(59,274)	(51,670)
Provincial capital tax		(742)		(155)
Interest expense	(13,989)	(15,309)	(27,997)	(19,813)
Income before income, mining and federal capital taxes	104,766	108,549	182,128	149,823
Total Assets	5,641,656		5,641,656		5,500,351
Canada
Segment reporting Information
Revenues from Mining Operations	298,143	271,568	575,714	448,183
Production Costs	148,231	130,228	287,391	211,588
Amortization	45,870	33,088	92,971	53,449
Foreign currency translation loss (gain)	1,383	(13,836)	11,688	(3,677)
Segment Income (Loss)	102,659	122,088	183,664	186,823
Total Assets	3,995,585		3,995,585		4,172,997
Europe
Segment reporting Information
Revenues from Mining Operations	44,895	34,725	101,226	69,213
Production Costs	26,192	17,937	54,692	40,955
Amortization	5,509	6,176	12,777	13,290
Foreign currency translation loss (gain)	(76)	(4,025)	3,787	(4,687)
Segment Income (Loss)	13,270	14,637	29,970	19,655
Total Assets	717,718		717,718		679,258
Latin America
Segment reporting Information
Revenues from Mining Operations	90,653	41,163	168,819	67,643
Production Costs	38,331	18,408	69,238	32,257
Amortization	7,856	4,739	15,416	7,767
Foreign currency translation loss (gain)	772	434	669	(162)
Segment Income (Loss)	43,694	17,582	83,496	27,781
Mexico
Segment reporting Information
Total Assets	684,807		684,807		619,263
Exploration
Segment reporting Information
Exploration and Corporate Development	17,289	12,955	34,267	20,459
Foreign currency translation loss (gain)	634		634
Segment Income (Loss)	(17,923)	(12,955)	(34,901)	(20,459)
Total Assets	243,546		243,546		28,833
Corporate and Other Income (Loss)
Segment reporting Information
Interest and sundry income (loss)	224	93	24	153
Gain on sale of available-for-sale securities	420		4,814	346
Gain (Loss) on derivative financial instruments	981	6,395	2,332	7,162
General and administrative expenses	(24,122)	(23,240)	(59,274)	(51,670)
Provincial capital tax		(742)		(155)
Interest expense	(13,989)	(15,309)	(27,997)	(19,813)
Income before income, mining and federal capital taxes	104,766	108,549	182,128	149,823
Meliadine Mine Project
Segment reporting Information
Goodwill	$ 200,100		$ 200,100

Exploration and corporate development activities expense for the period.

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- Definition

Sum of operating profit and nonoperating income (expense) before income (loss) from equity method investments, income taxes, mining taxes, extraordinary items, cumulative effects of changes in accounting principles, and noncontrolling interest.

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This element represents the minimum required percentage of combined revenue, profit or loss or total assets of all reported segments to identify reportable segments.

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Taxes assessed on the company's capitalization (paid-up capital and debt) less certain allowances and tax credits for exploration expense incurred.

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Sum of the carrying amounts as of the balance sheet date of all assets that are recognized. Assets are probable future economic benefits obtained or controlled by an entity as a result of past transactions or events.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
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Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
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-Section 03
-Paragraph 12
-Article 7

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- Definition

This item represents the gross profit realized on the sale of debt or equity securities categorized neither as held-to-maturity nor trading securities.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
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The aggregate expense recognized in the current period that allocates the cost of tangible assets, intangible assets, or depleting assets to periods that benefit from use of the assets.

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Net increase (decrease) in the fair value of the derivative or group of derivatives included in earnings.

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The aggregate foreign currency transaction gain or loss (both realized and unrealized) included in determining net income for the reporting period. Excludes foreign currency transactions designated as hedges of net investment in a foreign entity and intercompany foreign currency transactions that are of a long-term nature, when the entities to the transaction are consolidated, combined, or accounted for by the equity method in the reporting enterprise's financial statements. For certain enterprises, primarily banks, that are dealers in foreign exchange, foreign currency transaction gains or losses may be disclosed as dealer gains or losses.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
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-Paragraph 30

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The aggregate total of expenses of managing and administering the affairs of an entity, including affiliates of the reporting entity, which are not directly or indirectly associated with the manufacture, sale or creation of a product or product line.

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- Definition

Carrying amount as of the balance sheet date, which is the cumulative amount paid, adjusted for any amortization recognized prior to adoption of FAS 142 and for any impairment charges, in excess of the fair value of net assets acquired in one or more business combination transactions.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
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-Paragraph 43

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- Definition

The cost of borrowed funds accounted for as interest that was charged against earnings during the period.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
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-Publisher OTS
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-Publisher SEC
-Name Regulation S-X (SX)
-Number 210
-Section 04
-Paragraph 9
-Article 9

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- Definition

Costs incurred related to mineral extraction, processing and marketing.

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-Publisher SEC
-Name Regulation S-X (SX)
-Number 210
-Section 03
-Paragraph 2
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Reflects the sum of all other revenue and income recognized by the entity in the period not otherwise specified in the income statement.

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-Publisher SEC
-Name Regulation S-X (SX)
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-Section 04
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Aggregate revenue from the sale of minerals and related products, and from rendering services such as exploration, development, mining, processing and providing mining support activities.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Regulation S-X (SX)
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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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Amount of income or loss for the reportable segment before unusual Items, equity method income or loss, income taxes, and extraordinary items.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
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-Paragraph 27

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