Investments in Marketable Securities (Tables)

9 Months Ended

Sep. 30, 2014

Marketable Securities [Abstract]

Schedule of Available-For-Sale and Trading Securities

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, 2013 and September 30, 2014:

	Available-for-Sale						Trading
	December 31, 2013			September 30, 2014			December 31, 2013			September 30, 2014
Cost	$	103.2		$	114.7		$	17.9		$	18.5
Unrealized Gains	33.3			28.0			4.6			3.6
Unrealized Losses	(1.1		)	(6.7		)	(0.0		)	(0.0		)
Fair Value	$	135.4		$	136.0		$	22.5		$	22.1