Valuation and Qualifying Accounts (Tables)

12 Months Ended

Dec. 31, 2012

Valuation and Qualifying Accounts

Summary of activity in the allowance for doubtful accounts

Allowance for doubtful accounts	Balance at Beginning of Year		Charged to Costs and Expenses		Deductions			Balance at End of Year
	(In thousands)
For the years ended:
December 31, 2012	$	11,916	$	116,742	$	(114,824	)	$	13,834
December 31, 2011	$	29,650	$	94,678	$	(112,412	)	$	11,916
December 31, 2010	$	16,372	$	115,478	$	(102,200	)	$	29,650