Available For Sale Securities

12 Months Ended

Dec. 31, 2012

Available For Sale Securities [Abstract]

Available For Sale Securities

4.RESTRICTED SECURITIES AVAILABLE FOR SALE

Restricted securities available for sale consisted of the following:

(In millions)	As of December 31, 2012
	Cost		Gross Unrealized Gains			Gross Unrealized Losses				Estimated Fair Value
US Government and agency securities	$	20.6	$	-		$	(0.1		)	$	20.5
Commercial paper		18.9		-			(0.1		)		18.8
Corporate bonds		3.3		-			-				3.3
Certificates of deposit		3.3		-			-				3.3
Foreign Government bonds		0.2		-			-				0.2
Total restricted securities available for sale	$	46.3	$	-		$	(0.2		)	$	46.1
(In millions)	As of December 31, 2011
	Cost		Gross Unrealized Gains			Gross Unrealized Losses				Estimated Fair Value
Corporate bonds	$	0.8	$		-	$		-		$	0.8
Total restricted securities available for sale	$	0.8	$		-	$		-		$	0.8

The cost and estimated fair values of debt securities by contractual maturity were as follows (securities with multiple maturity dates are classified in the period of final maturity).  Expected maturities will differ from contractual maturities because borrowers may have the right to call or prepay obligations with or without call or prepayment penalties.

(In millions)	As of December 31,
	2012				2011
	Cost		Estimated Fair Value		Cost		Estimated Fair Value
Contractual Maturity
Within one year	$	33.8	$	33.7	$	-	$	-
Over one year to five years		8.6		8.6		0.8		0.8
Over five years to ten years		3.9		3.8		-		-
Total restricted securities available for sale	$	46.3	$	46.1	$	0.8	$	0.8