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Operating Lease Obligations
12 Months Ended
Dec. 31, 2012
Leases, Operating [Abstract]  
Operating Lease Obligations
Operating Lease Obligations

We lease facilities under noncancelable operating leases, which are used for district office and warehouse operations. These leases extend for varying periods of time up to five years and, in some cases, contain renewal options. Minimum rental commitments under noncancelable operating leases, as of December 31, 2012 were as follows:

Minimum lease obligations
 
Operating Lease
Obligations
 
 
 
Year ending December 31, 2013
 
$
4,309

2014
 
2,246

2015
 
1,375

2016
 
932

2017
 
225

2018 and after
 
162

Total minimum lease payments
 
$
9,249



Total rent expense under all operating leases was $5,860 in 2012, $6,233 in 2011 and $5,719 in 2010.