XML 22 R10.htm IDEA: XBRL DOCUMENT v3.4.0.3
Investments in Marketable Securities
 3 Months Ended
Mar. 31, 2016
Marketable Securities [Abstract]  
Investments in Marketable Securities
Investments in Marketable Securities
Investments in marketable securities at December 31, 2015 and March 31, 2016 were $199.9 million and $208.2 million, respectively. The following is a summary of the cost, gross unrealized gains and losses and fair value of investments classified as available-for-sale and trading:
 
Available-for-Sale
 
Trading
 
December 31,
2015
 
March 31,
2016
 
December 31,
2015
 
March 31,
2016
Cost
$
104.7

 
$
94.0

 
$
19.8

 
$
57.7

Unrealized Gains
77.6

 
59.2

 
1.9

 
4.1

Unrealized Losses
(1.8
)
 
(1.5
)
 
(2.3
)
 
(5.3
)
Fair Value
$
180.5

 
$
151.7

 
$
19.4

 
$
56.5


For the three months ended March 31, 2015 and 2016, there were $0.1 million and $1.7 million, respectively, of realized gains on investments classified as available-for-sale. These gains were recorded in Investment and other income. There were no significant realized gains or losses on investments classified as trading in the three months ended March 31, 2015 and 2016.