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Convertible Securities (Tables)

12 Months Ended

Dec. 31, 2015

Debt Disclosure [Abstract]

Schedule of Carrying Value of Convertible Securities

The carrying values of the Company’s convertible securities were as follows:

		December 31, 2014								December 31, 2015
		Carrying Value				Principal Amount at Maturity				Carrying Value				Principal Amount at Maturity
2007 junior convertible securities(1)		$	303.1			$	430.8			$	305.2			$	430.8

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⁽¹⁾  The carrying value is accreted to the principal amount at maturity over a remaining life of 22 years.

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Tabular disclosure of the carrying amount and fair value of convertible securities.

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