Allowance for Uncollectible Accounts (Tables)

9 Months Ended

Sep. 30, 2013

Valuation And Qualifying Accounts [Abstract]

Allowance for Uncollectible Accounts Activity and Ending Balances

The following table summarizes the activity and ending balances in the allowance for uncollectible accounts (amounts in thousands):

Balance as of December 31, 2012	$	11,863
Additions and expenses		9,833
Deductions		(7,701	)
Balance as of September 30, 2013	$	13,995