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REMEDIAL LIABILITIES (Tables)
6 Months Ended
Jun. 30, 2012
Environmental Remediation Obligations [Abstract]  
Changes to remedial liabilities
The changes to remedial liabilities for the six months ended June 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
 
136

 
1,726

 
1,117

 
2,979

Changes in estimates recorded to statement of income
 
(49
)
 
(1,172
)
 
(2,172
)
 
(3,393
)
Expenditures
 
(42
)
 
(1,750
)
 
(1,133
)
 
(2,925
)
Currency translation and other
 
(5
)
 
1

 
(20
)
 
(24
)
Balance at June 30, 2012
 
$
5,640

 
$
77,254

 
$
49,063

 
$
131,957