Investments in Marketable Securities

3 Months Ended

Mar. 31, 2015

Marketable Securities [Abstract]

Investments in Marketable Securities

Investments in Marketable Securities

Investments in marketable securities at December 31, 2014 and March 31, 2015 were $172.6 million and $192.9 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 at December 31, 2014 and March 31, 2015:

	Available-for-Sale						Trading
	December 31, 2014			March 31, 2015			December 31, 2014			March 31, 2015
Cost	$	125.6		$	123.1		$	19.5		$	21.9
Unrealized Gains	42.8			49.8			2.9			3.5
Unrealized Losses	(18.1		)	(5.0		)	(0.1		)	(0.4		)
Fair Value	$	150.3		$	167.9		$	22.3		$	25.0

There were no significant realized gains or losses on investments classified as available-for-sale for the three months ended March 31, 2014 and 2015.