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SEGMENTED INFORMATION - Revenues From Mining Operations and Production Costs (Details) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2017 USD ($) item | Dec. 31, 2016 USD ($)
Operating segments |  |  |
Number of business units | item |  | 3 |
Revenues from Mining Operations |  | $ 2,242,604 | $ 2,138,232
Production Costs | [1] | (1,057,842) | (1,031,892)
Exploration and Corporate Development |  | (141,450) | (146,978)
Gain on Impairment Reversal |  |  | 120,161
Segment Income (Loss) |  | 1,043,312 | 1,079,523
Corporate and other: |  |  |
Amortization of property, plant and mine development |  | (508,739) | (613,160)
General and administrative |  | (115,064) | (102,781)
Impairment loss on available-for- sale securities |  | (8,532) |
Finance costs |  | (78,931) | (74,641)
Gain on derivative financial instruments |  | 20,990 | 9,468
Gain on sale of available-for-sale securities |  | 168 | 3,500
Environmental remediation |  | (1,219) | (4,058)
Foreign currency translation loss (gain) |  | (13,313) | (13,157)
Other (income) expenses |  | 3,709 | (16,233)
Income before income and mining taxes |  | 342,381 | 268,461
Asset |  |  |
Total assets |  | 7,865,601 | 7,107,951
LaRonde mine |  |  |
Asset |  |  |
Total assets |  | 870,150 | 808,981
Lapa mine |  |  |
Asset |  |  |
Total assets |  | 17,867 | 16,473
Goldex mine |  |  |
Asset |  |  |
Total assets |  | 275,132 | 248,766
Meadowbank mine |  |  |
Asset |  |  |
Total assets |  | 565,355 | 500,207
Canadian Malartic joint operation |  |  |
Asset |  |  |
Total assets |  | 1,943,304 | 1,956,285
Meliadine project |  |  |
Asset |  |  |
Total assets |  | 1,194,414 | 781,999
Kittila mine |  |  |
Asset |  |  |
Total assets |  | 982,378 | 961,392
Pinos Altos mine |  |  |
Asset |  |  |
Total assets |  | 668,492 | 667,123
Creston Mascota deposit at Pinos Altos |  |  |
Asset |  |  |
Total assets |  | 50,144 | 60,308
La India mine |  |  |
Asset |  |  |
Total assets |  | 427,957 | 428,005
Exploration |  |  |
Asset |  |  |
Total assets |  | 277,099 | 198,738
Operating segment | Northern Business |  |  |
Operating segments |  |  |
Revenues from Mining Operations |  | 1,790,952 | 1,638,359
Production Costs |  | (856,493) | (840,249)
Exploration and Corporate Development |  | (32,735) | (67,532)
Gain on Impairment Reversal |  |  | 120,161
Segment Income (Loss) |  | 901,724 | 850,739
Asset |  |  |
Total assets |  | 5,848,600 | 5,274,103
Operating segment | LaRonde mine |  |  |
Operating segments |  |  |
Revenues from Mining Operations |  | 484,488 | 388,180
Production Costs |  | (185,488) | (179,496)
Segment Income (Loss) |  | 299,000 | 208,684
Operating segment | Lapa mine |  |  |
Operating segments |  |  |
Revenues from Mining Operations |  | 64,572 | 92,160
Production Costs |  | (38,786) | (52,974)
Segment Income (Loss) |  | 25,786 | 39,186
Operating segment | Goldex mine |  |  |
Operating segments |  |  |
Revenues from Mining Operations |  | 139,665 | 149,730
Production Costs |  | (71,015) | (63,310)
Segment Income (Loss) |  | 68,650 | 86,420
Operating segment | Meadowbank mine |  |  |
Operating segments |  |  |
Revenues from Mining Operations |  | 449,025 | 384,023
Production Costs |  | (224,364) | (218,963)
Exploration and Corporate Development |  | (28,871) | (63,488)
Gain on Impairment Reversal |  |  | 37,161
Segment Income (Loss) |  | 195,790 | 138,733
Operating segment | Canadian Malartic joint operation |  |  |
Operating segments |  |  |
Revenues from Mining Operations |  | 404,441 | 371,920
Production Costs |  | (188,568) | (183,635)
Exploration and Corporate Development |  | (3,864) | (4,044)
Segment Income (Loss) |  | 212,009 | 184,241
Operating segment | Meliadine project |  |  |
Operating segments |  |  |
Gain on Impairment Reversal |  |  | 83,000
Segment Income (Loss) |  |  | 83,000
Operating segment | Kittila mine |  |  |
Operating segments |  |  |
Revenues from Mining Operations |  | 248,761 | 252,346
Production Costs |  | (148,272) | (141,871)
Segment Income (Loss) |  | 100,489 | 110,475
Operating segment | Southern Business |  |  |
Operating segments |  |  |
Revenues from Mining Operations |  | 451,652 | 499,873
Production Costs |  | (201,349) | (191,643)
Segment Income (Loss) |  | 250,303 | 308,230
Asset |  |  |
Total assets |  | 1,146,593 | 1,155,436
Operating segment | Pinos Altos mine |  |  |
Operating segments |  |  |
Revenues from Mining Operations |  | 257,905 | 294,377
Production Costs |  | (108,726) | (114,557)
Segment Income (Loss) |  | 149,179 | 179,820
Operating segment | Creston Mascota deposit at Pinos Altos |  |  |
Operating segments |  |  |
Revenues from Mining Operations |  | 63,798 | 62,967
Production Costs |  | (31,490) | (27,341)
Segment Income (Loss) |  | 32,308 | 35,626
Operating segment | La India mine |  |  |
Operating segments |  |  |
Revenues from Mining Operations |  | 129,949 | 142,529
Production Costs |  | (61,133) | (49,745)
Segment Income (Loss) |  | 68,816 | 92,784
Operating segment | Exploration |  |  |
Operating segments |  |  |
Exploration and Corporate Development |  | (108,715) | (79,446)
Segment Income (Loss) |  | (108,715) | (79,446)
Corporate and others |  |  |
Asset |  |  |
Total assets |  | $ 593,309 | $ 479,674
[1] | Exclusive of amortization, which is shown separately.

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