Accounts Receivable

12 Months Ended

Dec. 31, 2012

Accounts Receivable: [Abstract]

Loans, Notes, Trade and Other Receivables Disclosure [Text Block]

Accounts Receivable:

Accounts receivable consists of the following (in millions):

	As of December 31,
	2012			2011
Patient accounts receivable	$	260.0		$	232.5
Less: Allowance for doubtful accounts	(28.7		)	(21.4		)
Patient accounts receivable, net	231.3			211.1
Other accounts receivable	18.0			11.7
Accounts receivable, net	$	249.3		$	222.8

At December 31, 2012 and 2011, our allowance for doubtful accounts represented approximately 11.0% and 9.2%, respectively, of the total patient due accounts receivable balance.

The following is the activity related to our allowance for doubtful accounts (in millions):

For the Year Ended December 31,	Balance at Beginning of Period		Additions and Charges to Expense		Deductions and Accounts Written Off			Balance at End of Period
2012	$	21.4	$	27.0	$	(19.7	)	$	28.7
2011	$	22.7	$	21.0	$	(22.3	)	$	21.4
2010	$	30.1	$	16.4	$	(23.8	)	$	22.7