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CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS) - USD ($) $ in Millions | 12 Months Ended
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Dec. 31, 2017 | Dec. 31, 2016
CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS) |  |  |
Net earnings (loss) |  | $ 442.2 | $ (109.1)
Items to be reclassified to profit or loss in subsequent periods: |  |  |
Changes in fair value of investments | [1] | (13.6) | 50.8
Accumulated other comprehensive income (loss) related to investments sold | [2] | (3.1) | (8.5)
Changes in fair value of derivative financial instruments designated as cash flow hedges | [3] | 11.9 | 29.2
Accumulated other comprehensive income (loss) related to derivatives settled | [4] | (13.2) | (1.1)
Total other comprehensive income (loss), net of tax |  | (18.0) | 70.4
Total comprehensive income (loss) |  | 424.2 | (38.7)
Attributable to non-controlling interest |  | (3.2) | (5.1)
Attributable to common shareholders |  | $ 427.4 | $ (33.6)
[1] | Net of tax of $0.3 million (2016 - $ nil).
[2] | Net of tax of $ nil (2016 - $ nil).
[3] | Net of tax of $4.8 million (2016 - $10.6 million).
[4] | Net of tax of $(5.9) million (2016 - $(1.1) million).

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