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FINANCIAL RISK MANAGEMENT (Details 3) - USD ($) $ in Millions | Dec. 31, 2018 | Dec. 31, 2017 | Dec. 31, 2016
--- | --- | --- | ---
Exposure to currency risk |  |  |
Cash and cash equivalents | $ 103.7 | $ 216.2 | $ 185.9
Deferred tax asset | 0.0 | 171.6 |
Deferred tax liability | (41.5) | (250.3) |
Reclamation and closure cost obligations | (92.6) | (124.1) | $ (81.9)
CAD [Member] | Currency risk [member] |  |  |
Exposure to currency risk |  |  |
Cash and cash equivalents | 12.9 | 16.6 |
Trade and other receivables | 9.9 | 19.5 |
Income tax receivable | 0.0 | 0.4 |
Deferred tax asset |  | 130.5 |
Trade and other payables | (105.0) | (141.6) |
Deferred tax liability | (41.5) | (183.9) |
Reclamation and closure cost obligations | (72.6) | (84.6) |
Performance share units and restricted share units | (0.5) | (2.8) |
Total exposure to currency risk | (196.8) | (245.9) |
AUD [Member] | Currency risk [member] |  |  |
Exposure to currency risk |  |  |
Cash and cash equivalents |  | 5.9 |
Trade and other receivables |  | 0.0 |
Income tax receivable |  | 0.0 |
Deferred tax asset |  | 0.0 |
Trade and other payables |  | 0.0 |
Deferred tax liability |  | 0.0 |
Reclamation and closure cost obligations |  | 0.0 |
Performance share units and restricted share units |  | (2.6) |
Total exposure to currency risk |  | 3.3 |
MXN [Member] | Currency risk [member] |  |  |
Exposure to currency risk |  |  |
Cash and cash equivalents | 0.6 | 1.5 |
Trade and other receivables | 4.9 | 6.2 |
Income tax receivable | 4.6 | 4.2 |
Deferred tax asset |  | 0.0 |
Trade and other payables | (14.1) | (11.5) |
Deferred tax liability | 0.0 | (0.1) |
Reclamation and closure cost obligations | (13.5) | (11.7) |
Performance share units and restricted share units | 0.0 | 0.0 |
Total exposure to currency risk | $ (17.5) | $ (11.4) |

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