Securities Available For Sale (Tables)

12 Months Ended

Dec. 31, 2011

Dec. 31, 2010

Collateralized Debt Obligations Sold [Member]

Auction Rate Securities [Member]

Fair Value Of Auction Rate Securities By Security Type And Underlying Rating

	Underlying Credit Rating (1)
	AAA		CCC		Total
As of December 31, 2011
Student loans	$	11.9	$	—	$	11.9
Structured finance securities		—		1.7		1.7
Total auction rate securities	$	11.9	$	1.7	$	13.6

	Underlying Credit Rating (1)
	A3/A-		CCC		Total
As of December 31, 2010
Student loans	$	16.4	$	—	$	16.4
Structured finance securities		—		2.6		2.6
Total auction rate securities	$	16.4	$	2.6	$	19.0

(1) The Company's auction rate securities maintain split ratings. For purposes of this table, securities are categorized according to their lowest rating.

Details Of Securities Sold

Par value	$	11.2
Cost basis	$	6.6
Fair value	$	5.7
Cumulative realized losses	$	4.2
Accumulated losses in other comprehensive income, gross	$	0.9
Accumulated losses in other comprehensive income, net of tax	$	0.6

Details Of Other Than Temporary Losses

	For the Years Ended December 31,
	2011		2010		2009
Total other-than-temporary impairment losses on securities available for sale	$	0.6	$	1.2	$	8.1
Less: Unrealized losses on securities available for sale, recognized in other comprehensive income		—		—		2.0
Unrealized losses on securities available for sale, recognized in earnings	$	0.6	$	1.2	$	6.1

Auction Rate Securities Reconciliation Of Cost Basis To Fair Value

	December 31, 2011
	Adjusted Cost Basis  (1)		Gross  Cumulative Unrealized (Losses)/Gains			Fair Value
Auction rate securities – student loans	$	12.9	$	(1.0	)	$	11.9
Auction rate securities – structured finance securities		1.7		—			1.7
Total auction rate securities	$	14.6	$	(1.0	)	$	13.6
	December 31, 2010
	Adjusted Cost Basis (1)		Gross Cumulative Unrealized (Losses) Gains			Fair Value
Auction rate securities – student loans	$	17.5	$	(1.1	)	$	16.4
Auction rate securities – structured finance securities		2.3		0.3			2.6
Total auction rate securities	$	19.8	$	(0.8	)	$	19.0

(1) Adjusted cost basis reflects adjustments for credit and other losses recognized in earnings. Cumulative adjustments to the cost basis of securities held as of December 31, 2011 and 2010 totaled $3.3 million and $2.7 million, respectively. Par value of securities held as of December 31, 2011 and 2010 was $17.9 million and $22.5 million, respectively.