XML 100 R44.htm IDEA: XBRL DOCUMENT v3.8.0.1
Accumulated Other Comprehensive Loss, Net of Tax (Tables)
 12 Months Ended
Dec. 31, 2017
Subclassifications of assets, liabilities and equities [abstract]  
Disclosure of Detailed Information about Accumulated Other Comprehensive Income
 
Year ended
December 31
 
2015
 
2016
 
2017
Opening balance of foreign currency translation account
$
(13.5
)
 
$
(15.2
)
 
$
(15.2
)
Foreign currency translation adjustments
(1.7
)
 
—

 
0.7

Closing balance
(15.2
)
 
(15.2
)
 
(14.5
)
Opening balance of unrealized net loss on cash flow hedges
(11.5
)
 
(17.6
)
 
(9.5
)
Net gain (loss) on cash flow hedges(i)
(39.2
)
 
(2.2
)
 
27.9

Reclassification of net loss (gain) on cash flow hedges to operations(ii)
33.1

 
10.3

 
(10.6
)
Closing balance(iii)
(17.6
)
 
(9.5
)
 
7.8

 
 
 
 
 
 
Actuarial gains (losses) on pension and non-pension post-employment benefit plans (note 19)
(7.0
)
 
17.1

 
(1.2
)
Reclassification of actuarial losses (gains) to deficit
7.0

 
(17.1
)
 
1.2

Settlement loss (note 19)
—

 
—

 
(17.0
)
Reclassification of settlement loss to deficit (note 19)
—

 
—

 
17.0

Closing balance
—

 
—

 
—

Accumulated other comprehensive loss
$
(32.8
)
 
$
(24.7
)
 
$
(6.7
)

(i)
Net of income tax expense of $2.8 for 2017 (2016 — $1.2 income tax recovery; 2015 — $2.8 income tax recovery).
(ii)
Net of income tax recovery of $0.3 for 2017 (2016 — $1.1 income tax expense; 2015 — $2.9 income tax expense).
(iii)
Net of income tax expense of $1.2 as of December 31, 2017 (December 31, 2016 — $1.3 income tax recovery; December 31, 2015 — $1.2 income tax recovery).