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CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME - USD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2018 | Dec. 31, 2017
Statement of comprehensive income [abstract] |  |
Net loss | $ (1,225.7) | $ (108.0)
Other comprehensive income |  |
Unrealized loss on mark-to-market of diesel swap contracts | 0.0 | (0.4)
Reclassification of realized loss on settlement of diesel swap contracts | 0.0 | 0.3
Gain (loss) on revaluation of gold stream obligation | 66.6 | (7.6)
Deferred income tax related to derivative contracts and gold stream obligation | (21.6) | 1.8
Total other comprehensive income (loss) | 45.0 | (5.9)
Total comprehensive loss | $ (1,180.7) | $ (113.9)

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