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ACCRUED EXPENSES (Tables)
6 Months Ended
Jun. 30, 2013
Accrued Expenses [ABSTRACT]  
Accrued expenses
Accrued expenses consisted of the following (in thousands):
 
 
June 30,
2013
 
December 31,
2012
Insurance
 
$
54,671

 
$
48,243

Interest
 
20,734

 
20,061

Accrued disposal costs
 
1,668

 
1,835

Accrued compensation and benefits
 
64,205

 
70,250

Income, real estate, sales and other taxes
 
44,307

 
35,640

Other
 
56,777

 
56,400

 
 
$
242,362

 
$
232,429