XML 39 R23.htm IDEA: XBRL DOCUMENT v3.8.0.1
Supplemental Cash Flow Information
 12 Months Ended
Dec. 31, 2017
Supplemental Cash Flow Elements [Abstract]  
Supplemental Cash Flow Information
Supplemental Cash Flow Information 
Changes in operating assets and liabilities as disclosed in the statements of cash flows, for the fiscal years 2017, 2016 and 2015, respectively, were as follows: 
 
2017
 
2016
 
2015
 
(In millions of dollars)
Increase in trade accounts receivable
$
(126.2
)
 
$
(93.9
)
 
$
(64.2
)
Increase in prepaid expenses and other assets
(13.8
)
 
(11.0
)
 
(5.2
)
Increase in accounts payable and accrued liabilities
63.9

 
58.4

 
50.9

Increase (decrease) in accrued payroll and related taxes
32.9

 
1.9

 
(23.7
)
Increase (decrease) in accrued insurance
6.7

 
2.4

 
(4.2
)
Increase in income and other taxes
7.1

 
2.2

 
0.5

 
 
 
 
 
 
Total changes in operating assets and liabilities, net of acquisition
$
(29.4
)
 
$
(40.0
)
 
$
(45.9
)
 
The Company paid interest of $1.9 million in 2017 and $2.7 million in 2016 and 2015. The Company paid income taxes of $20.1 million in 2017, $24.0 million in 2016 and $23.5 million in 2015. 
Non-cash capital expenditures totaled $3.0 million, $1.7 million and $1.8 million at year-end 2017, 2016 and 2015, respectively.