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Consolidated Statement of Comprehensive Income - USD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2017 | Dec. 31, 2016 | Dec. 31, 2015
Statement of comprehensive income [abstract] |  |  |
Net earnings | $ 105.0 | $ 136.3 | $ 66.9
Items that will not be reclassified to net earnings: |  |  |
Gains (losses) on pension and non-pension post-employment benefit plans (note 19) | (18.2) | 17.1 | (7.0)
Items that may be reclassified to net earnings: |  |  |
Currency translation differences for foreign operations | 0.7 | 0.0 | (1.7)
Changes from derivatives designated as hedges | 17.3 | 8.1 | (6.1)
Total comprehensive income | $ 104.8 | $ 161.5 | $ 52.1

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