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Leases (Tables)
 12 Months Ended
Dec. 31, 2013
Leases [Abstract]  
Future minimum lease payments required under our leasing arrangements
Future minimum lease payments required under our operating leases at December 31, 2013 were approximately as follows:
 
 
2014
 
2015
 
2016
 
2017
 
2018
 
Thereafter
Future minimum lease payments
 
$
34.5

 
$
27.7

 
$
21.8

 
$
18.0

 
$
16.1

 
$
31.6