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FINANCIAL RISK MANAGEMENT (Details 3) - USD ($) $ in Millions | Dec. 31, 2017 | Dec. 31, 2016 | Dec. 31, 2015
--- | --- | --- | ---
Exposure to currency risk |  |  |
Cash and cash equivalents | $ 216.2 | $ 185.9 | $ 335.5
Deferred tax asset | 171.6 | 224.9 |
Deferred tax liability | (250.3) | (455.2) |
Reclamation and closure cost obligations | (124.1) | (81.9) | $ (68.8)
CAD [Member] | Currency risk [member] |  |  |
Exposure to currency risk |  |  |
Cash and cash equivalents | 16.6 | 95.3 |
Trade and other receivables | 19.5 | 8.0 |
Income tax (payable) receivable | 0.4 | (1.1) |
Deferred tax asset | 130.5 | 173.3 |
Trade and other payables | (141.6) | (118.3) |
Deferred tax liability | (183.9) | (321.1) |
Reclamation and closure cost obligations | (84.6) | (36.5) |
Warrants |  | (1.3) |
Employee benefits |  | (1.1) |
Performance share units and restricted share units | (2.6) | (2.8) |
Total exposure to currency risk | (245.7) | (205.6) |
AUD [Member] | Currency risk [member] |  |  |
Exposure to currency risk |  |  |
Cash and cash equivalents | 5.9 | 4.6 |
Trade and other receivables | 0.0 | 0.5 |
Income tax (payable) receivable | 0.0 | (4.5) |
Deferred tax asset | 0.0 | 14.0 |
Trade and other payables | 0.0 | (12.0) |
Deferred tax liability | 0.0 | (26.1) |
Reclamation and closure cost obligations | 0.0 | (13.6) |
Warrants |  | 0.0 |
Employee benefits |  | (7.9) |
Performance share units and restricted share units | 0.0 | 0.0 |
Total exposure to currency risk | 5.9 | (45.0) |
MXN [Member] | Currency risk [member] |  |  |
Exposure to currency risk |  |  |
Cash and cash equivalents | 1.5 | 1.2 |
Trade and other receivables | 6.2 | 5.5 |
Income tax (payable) receivable | 4.2 | 3.1 |
Deferred tax asset | 0.0 | 0.9 |
Trade and other payables | (11.5) | (16.2) |
Deferred tax liability | (0.1) | (0.5) |
Reclamation and closure cost obligations | (11.7) | (12.2) |
Warrants |  | 0.0 |
Employee benefits |  | 0.0 |
Performance share units and restricted share units | 0.0 | 0.0 |
Total exposure to currency risk | $ (11.4) | $ (18.2) |

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