Equity (Tables)

9 Months Ended

Sep. 30, 2011

Equity [Abstract]

Company's warrants on net income (loss)

		Three-Month Periods Ended September 30,					Nine-Month Periods Ended September 30,
		2011		2010			2011		2010
Derivatives not Designated as Hedging Instruments	Income  Statement Location	Gain (Loss)					Gain (Loss)
Warrants	Gain (loss) on equity derivative instruments	$	—	$	(11.3	)	$	21.9	$	(14.6	)

Reconciliation of the beginning and ending balances of equity derivative instruments

	Equity Derivative Instruments – Liability
Balance of Level 3 at December 31, 2010	$	96.2
Unrealized gain		(21.9	)
Transfer out of liability to paid-in capital		(74.3	)
Balance of Level 3 at September 30, 2011	$	—