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Restricted Securities Available For Sale (Tables)
 12 Months Ended
Dec. 31, 2013
Restricted Securities Available For Sale [Abstract]  
Schedule Of Restricted Securities Available For Sale

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

   

   

   

 

   

   

 

   

   

 

   

 (In millions)

As of December 31, 2013

   

   

Cost

   

Gross Unrealized Gains

   

   

Gross Unrealized Losses

   

   

Estimated Fair Value

   

Commercial paper

$
23.9

   

$

–

   

   

$

 –

 

   

$
23.9

   

US Government and agency securities

   
22.3

   

   

–

   

   

   
(0.2

)

   

   
22.1

   

Certificates of deposit

   
4.6

   

   

–

   

   

   

–

 

   

   
4.6

   

Corporate bonds

   
3.1

   

   

–

   

   

   
(0.1

)

   

   
3.0

   

 Total restricted securities available for sale

$
53.9

   

$

–

   

   

$
(0.3

)

   

$
53.6

   

 

   

   

   

   

   

   

   

   

   

   

   

   

   

   

   

 (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

   

 

Schedule Of Restricted Securities Available For Sale By Aging Catagory

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

(In millions)

   

Securities Available for Sale with Gross Unrealized Losses as of December 31, 2013

   

   

Less than 12 Months

   

   

12 Months or More

   

   

 

   

   

 

   

   

   

Estimated

Fair Value

   

   

Gross

Unrealized

Losses

   

   

Estimated

Fair Value

   

   

Gross

Unrealized

Losses

   

   

Total Estimated

Fair Value

   

   

Total

Gross

Unrealized Losses

   

Commercial paper

   

$
10.0

   

   

$

–

 

   

$

–

   

   

$

–

   

   

$
10.0

   

   

$

–

 

US Government and agency securities

   

   
11.8

   

   

   
(0.2

)  

   

   

–

   

   

   

–

   

   

   
11.8

   

   

   
(0.2

)  

Certificates of deposit

   

   
1.9

   

   

   

–

 

   

   

–

   

   

   

–

   

   

   
1.9

   

   

   

–

 

Corporate bonds

   

   
2.3

   

   

   
(0.1

)  

   

   

–

   

   

   

–

   

   

   
2.3

   

   

   
(0.1

)  

 Total restricted securities available for sale

   

$
26.0

   

   

$
(0.3

)

   

$

–

   

   

$

–

   

   

$
26.0

   

   

$
(0.3

)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

(In millions)

 

Securities Available for Sale with Gross Unrealized Losses as of December 31, 2012

   

 

Less than 12 Months

 

 

12 Months or More

 

 

 

 

 

 

 

   

 

Estimated

Fair Value

 

 

Gross

Unrealized

Losses

 

 

Estimated

Fair Value

 

 

Gross

Unrealized

Losses

 

 

Total Estimated

Fair Value

 

 

Total

Gross

Unrealized Losses

 

US Government and agency securities

 

$
16.7

 

 

$
(0.1

)

 

$

–

 

 

$

–

 

 

$
16.7

 

 

$
(0.1

)

Commercial paper

 

 
2.8

 

 

 
(0.1

)

 

 

–

 

 

 

–

 

 

 
2.8

 

 

 
(0.1

)

Corporate bonds

 

 
2.3

 

 

 

–

 

 

 

–

 

 

 

–

 

 

 
2.3

 

 

 

–

 

Certificates of deposit

 

 
1.5

 

 

 

–

 

 

 

–

 

 

 

–

 

 

 
1.5

 

 

 

–

 

Foreign Government bonds

 

 
0.1

 

 

 

–

 

 

 

–

 

 

 

–

 

 

 
0.1

 

 

 

–

 

 Total restricted securities available for sale

 

$
23.4

 

 

$
(0.2

)

 

$

–

 

 

$

–

 

 

$
23.4

 

 

$
(0.2

)

 

Schedule Of Cost And Estimated Fair Values Of Debt Securities By Contractual Maturity

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

(In millions)

 

As of December 31,

 

 

 

2013

 

 

2012

 

 

 

Cost

 

 

Estimated Fair Value

 

 

Cost

 

 

Estimated Fair Value

 

Contractual Maturity

 

 

 

 

 

 

 

 

 

 

 

 

Within one year

 

$
41.6 

 

 

$
41.6 

 

 

$
33.8 

 

 

$
33.7 

 

Over one year to five years

 

 
7.8 

 

 

 
7.8 

 

 

 
8.6 

 

 

 
8.6 

 

Over five years to ten years

 

 
4.5 

 

 

 
4.2 

 

 

 
3.9 

 

 

 
3.8 

 

 Total restricted securities available for sale

 

$
53.9 

 

 

$
53.6 

 

 

$
46.3 

 

 

$
46.1