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Valuation and Qualifying Accounts
 12 Months Ended
Dec. 31, 2013
Valuation And Qualifying Accounts [Abstract]  
Valuation and Qualifying Accounts

13.    Valuation and Qualifying Accounts

For the Years Ended December 31, 2013, 2012 and 2011

(in thousands)

 

            Additions               

Description

    Balance,
beginning
of period		      Charged to
costs and
expenses		      Charged
to other
accounts		      Deductions-(1)     Balance,
end of
period		  

Year ended December 31, 2013:

              

Deducted from asset account — Allowance for uncollectible accounts

    $ 3,881      $ 2,227      $ —      $ (2,371 )   $ 3,737  

Year ended December 31, 2012:

              

Deducted from asset account — Allowance for uncollectible accounts

      3,811        1,833        —        (1,763 )     3,881  

Year ended December 31, 2011:

              

Deducted from asset account — Allowance for uncollectible accounts

      4,652         1,508         —        (2,349 )      3,811   

  

 

(1) Primarily uncollectible accounts written off — net of recoveries.