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Supplemental Cash Flow Information
 9 Months Ended
Sep. 30, 2018
Supplemental Cash Flow Elements [Abstract]  
Supplemental Cash Flow Information
Supplemental Cash Flow Information
 
Nine Months Ended September 30,
 
2018
 
2017
Cash paid during the period for:
 
 
 
Income taxes, net of refunds
$
37.4

 
$
36.0

Interest
$
35.7

 
$
16.4


The following table provides a reconciliation of cash and cash equivalents and restricted cash reported within the Consolidated Balance Sheets to the total of the amounts shown in the Consolidated Statements of Cash Flows.
 
September 30,
2018
 
December 31, 2017
Cash and cash equivalents
$
516.1

 
$
733.9

Restricted cash
17.8

 
30.2

Total cash, cash equivalents and restricted cash shown in the Consolidated Statements of Cash Flows
$
533.9

 
$
764.1


Cash and cash equivalents subject to contractual restrictions and not readily available are classified as restricted cash. Restricted cash primarily consists of cash the company is contractually obligated to maintain in accordance with the terms of its U.K. business process outsourcing joint venture agreement and other cash that is restricted from withdrawal.