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Supplementary Cash Flow Information (Tables)
 6 Months Ended
Jun. 30, 2017
Supplemental Cash Flow Information [Abstract]  
Schedule of cash flow, supplemental disclosures Net cash paid (received) during the period for interest, net of capitalized interest, and income taxes are presented below:
 
 
Six Months Ended June 30,
 
 
2017
 
2016
Net cash paid (received) during the period for:
 
 
 
 
Interest, net of capitalized interest
 
$
61.6

 
$
78.7

Income taxes
 
(0.5
)
 
(3.2
)
Schedule of non-cash investing and financing activities Non-cash investing and financing activities are presented below:
 
 
Six Months Ended June 30,
 
 
2017
 
2016
Capital investments
 
$
22.7

 
$
24.3

Research and Innovation Center capital lease
 
1.1

 
15.4

Issuance of performance shares, restricted stock and restricted stock units
 
4.1

 
1.8