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SCHEDULE II - VALUATION AND QUALIFYING ACCOUNTS (Notes)
 12 Months Ended
Dec. 31, 2013
Valuation and Qualifying Accounts [Abstract]  
Schedule II - Valuation and Qualifying Accounts
SCHEDULE II
VALUATION AND QUALIFYING ACCOUNTS
Allowance for Doubtful Accounts
(in thousands)

Year Ended December 31,
Balance at Beginning of Year
 
Charged (Credited) to Income
 
Deduction and Other
 
Balance at End of Year
2013
$
541

 
$
163

 
$
—

 
$
704

2012
$
684

 
$
(143
)
 
$
—

 
$
541

2011
$
681

 
$
8

 
$
(5
)
 
$
684