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SCHEDULE II - VALUATIONS AND QUALIFYING ACCOUNTS
 12 Months Ended
Dec. 31, 2012
Schedule II - VALUATIONS AND QUALIFYING ACCOUNTS [Abstract]  
Schedule II - VALUATIONS AND QUALIFYING ACCOUNTS
 
Balance
 
Additions
 
Deductions
 
Balance
 
 
Beginning
 
Charged to
 
Written Off as
 
End
 
Description
of Year
 
Cost & Expenses
 
Uncollectible
 
of Year
 
 
 
 
 
 
Allowance for Doubtful Accounts:
 
 
 
 
Year Ended:
 
 
 
 
December 31, 2012
 
$
1,812
 
 
$
795
 
 
$
(1,001
)
 
$
1,606
 
December 31, 2011
 
 
2,810
 
 
 
1,351
 
 
 
(2,349
)
 
 
1,812
 
December 31, 2010
 
 
2,951
 
 
 
1,223
 
 
 
(1,364
)
 
 
2,810