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REMEDIAL LIABILITIES (Tables)
9 Months Ended
Sep. 30, 2012
Environmental Remediation Obligations [Abstract]  
Changes to remedial liabilities
The changes to remedial liabilities for the nine months ended September 30, 2012 were as follows (in thousands):
     
 
 
Remedial
Liabilities for
Landfill Sites
 
Remedial
Liabilities for
Inactive Sites
 
Remedial
Liabilities
(Including
Superfund) for
Non-Landfill
Operations
 
Total
Balance at January 1, 2012
 
$
5,600

 
$
78,449

 
$
51,271

 
$
135,320

Accretion
 
206

 
2,585

 
1,663

 
4,454

Changes in estimates recorded to statement of income
 
(50
)
 
(846
)
 
(3,593
)
 
(4,489
)
Expenditures
 
(65
)
 
(3,488
)
 
(1,720
)
 
(5,273
)
Currency translation and other
 
99

 
4

 
497

 
600

Balance at September 30, 2012
 
$
5,790

 
$
76,704

 
$
48,118

 
$
130,612