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Lease Obligations
12 Months Ended
Dec. 31, 2018
Leases [Abstract]  
Lease Obligations
Lease Obligations
 
We lease certain operating facilities, most of our vehicle and trucking equipment and various other assets. Lease terms, including purchase options, renewals and maintenance costs, vary by lease.
 
Total rental expense for the periods presented was as follows:
 
2018
 
2017
 
2016
Continuing operations
$
52.1

 
$
51.3

 
$
51.2


 
Future minimum rental commitments for all long-term non-cancelable operating leases are as follows:
 
Year ended December 31
 
2019
$
35.9

2020
30.7

2021
26.2

2022
19.9

2023
13.1

Thereafter
18.0

 
$
143.8



The above lease obligations expire at various dates through 2032. Aggregate rental commitments above include renewal amounts where it is our intention to renew the lease.