Schedule II - Valuation and Qualiying Accounts (Tables)

12 Months Ended

Dec. 31, 2011

Schedule II - Valuation and Qualifying Accountins Tables [Abstract]

Valuation and Qualifying Accounts

Column A	Column B		Column C		Column D			Column E
			Additions
	Balance at		Charged to		Deductions			Balance at
	Beginning of		Costs and		From			End of
Description	Year		Expenses		Reserves			Year
2011
Allowance deducted from Accounts Receivable	$	13,642	$	778	$	11,711	(1)	$	2,709
2010
Allowance deducted from Accounts Receivable	$	13,228	$	885	$	471		$	13,642
2009
Allowance deducted from Accounts Receivable	$	13,131	$	145	$	48		$	13,228

(1)   Primarily reflects amounts related to bankruptcies which occurred in December 2001