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FINANCIAL RISK MANAGEMENT (Details 2) - USD ($) $ in Millions | Dec. 31, 2017 | Dec. 31, 2016
--- | --- | ---
DEBT COMMITMENTS |  |
Trade and other payables | $ 178.2 | $ 169.2
Long-term debt | 1,007.7 | 889.5
Interest payable on long-term debt | 292.9 | 252.5
Gold stream obligation | 290.5 | 277.7
Total debt commitments | 1,767.1 | $ 1,599.5
Less than 1 year |  |
DEBT COMMITMENTS |  |
Trade and other payables | 153.7 |
Long-term debt | 0.0 |
Interest payable on long-term debt | 43.5 |
Gold stream obligation | 24.7 |
Total debt commitments | 221.9 |
1-3 years |  |
DEBT COMMITMENTS |  |
Trade and other payables | 0.0 |
Long-term debt | 230.0 |
Interest payable on long-term debt | 100.8 |
Gold stream obligation | 52.4 |
Total debt commitments | 383.2 |
4-5 years |  |
DEBT COMMITMENTS |  |
Trade and other payables | 0.0 |
Long-term debt | 500.0 |
Interest payable on long-term debt | 100.8 |
Gold stream obligation | 54.8 |
Total debt commitments | 655.6 |
More than 5 years |  |
DEBT COMMITMENTS |  |
Trade and other payables | 0.0 |
Long-term debt | 300.0 |
Interest payable on long-term debt | 47.8 |
Gold stream obligation | 158.6 |
Total debt commitments | $ 506.4 |

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