Investments in Marketable Securities (Tables)

12 Months Ended

Dec. 31, 2013

Summary of the cost, gross unrealized gains and losses and fair value of investments

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, 2012 and 2013:



	Available-for-Sale						Trading
	December 31, 2012			December 31, 2013			December 31, 2012			December 31, 2013
Cost	$	103.2		$	103.2		$	10.3		$	17.9
Unrealized Gains	15.3			33.3			6.5			4.6
Unrealized Losses	(3.2		)	(1.1		)	(3.2		)	—
Fair Value	$	115.3		$	135.4		$	13.6		$	22.5

- Definition

Tabular disclosure of available-for-sale securities which includes, but is not limited to, changes in the cost basis and fair value, fair value and gross unrealized gain (loss), fair values by type of security, contractual maturity and classification, amortized cost basis, contracts to acquire securities to be accounted for as available-for-sale, debt maturities, transfers to trading, change in net unrealized holding gain (loss) net of tax, continuous unrealized loss position fair value, aggregate losses qualitative disclosures, other than temporary impairment (OTTI) losses or other disclosures related to available for sale securities.

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