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INCOME AND MINING TAXES (Details 1) - USD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2017 | Dec. 31, 2016
Income and mining taxes [Abstract] |  |
Income (loss) before taxes | $ (217.6) | $ (10.7)
Canadian federal and provincial income tax rates | 26.30% | 25.80%
Income tax expense (recovery) based on above rates | $ (57.2) | $ (2.8)
Increase (decrease) due to |  |
Permanent differences | (11.0) | (4.3)
Different statutory tax rates on earnings of foreign subsidiaries | (11.7) | 0.8
Foreign exchange on non-monetary assets and liabilities | (7.4) | (10.1)
Other foreign exchange differences | (1.6) | 8.2
Prior years adjustments relating to tax provision and tax returns | (1.2) | 1.3
Canadian mining tax | 10.9 | 0.4
Mexican special duty tax | 0.3 | 0.6
Withholding tax | 1.3 | 0.3
Change in tax rates | (31.5) | 0.0
Change in unrecognized deferred tax assets | 2.0 | 1.2
Disposal of El Morro gold stream asset | (8.4) | 0.0
Other | (0.4) | 2.3
Income tax expense (recovery) | $ 115.9 | $ 2.1

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