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Investment (Table)
 12 Months Ended
Dec. 31, 2016
Investments [Abstract]  
Schedule of Investments, Amortized Cost Basis
The following table sets forth selected data with respect to the Company’s investments at December 31, (in millions):
 
2016
 
2015
 
Amortized
Cost

Gross Unrealized
Gains

Gross
Unrealized
Losses

Fair
Value

Carrying
Value

 
Amortized
Cost

Gross
Unrealized
Gains

Gross
Unrealized
Losses

Fair
Value

Carrying
Value

Available-for-sale securities
$
58.6

$
0.3

$
(1.5
)
$
57.4

$
57.4

 
$
51.9

$
0.5

$
(0.4
)
$
52.0

$
52.0

Trading securities
7.1

3.1

—

10.2

10.2

 
7.3

2.4

—

9.7

9.7

TOTAL INVESTMENTS
$
65.7

$
3.4

$
(1.5
)
$
67.6

$
67.6

 
$
59.2

$
2.9

$
(0.4
)
$
61.7

$
61.7
Schedule of Contractual Maturities of Available-For-Sale Investments
Contractual maturities of our investments in available-for-sale securities at December 31, 2016 were as follows (in millions):

 
Amortized
Cost

Fair Value

Available-for-sale securities
 

 

Due within 1 year
$
11.2

$
11.2

After 1 year but within 5 years
36.4

35.4

After 5 years but within 10 years
9.2

9.0

Due after 10 years
1.8

1.8

TOTAL
$
58.6

$
57.4