Stock-Based Compensation (Tables)

6 Months Ended

Jun. 30, 2013

Disclosure of Compensation Related Costs, Share-based Payments [Abstract]

Stock-Based Compensation Expense Recognized

The Company has recognized compensation expense associated with its stock-based compensation programs as follows:

	Quarter Ended June 30,				Six Months Ended June 30,
(In millions)	2013		2012		2013		2012
Amounts included in:
Corporate expense	$	2.6	$	4.1	$	3.3	$	14.2
Property, general, administrative, and other	3.5		17.6		6.4		19.0
Total stock-based compensation expense	$	6.1	$	21.7	$	9.7	$	33.2

Summary of Share-Based Option Activity

The following is a summary of share-based option activity, including options under the Company's 2008 incentive plan and the Company's 2012 incentive plan and warrants to purchase common stock, for the six months endedJune 30, 2013:

	Shares		Weighted Average Exercise Price
Outstanding at December 31, 2012	8,478,148		$	12.22
Granted	545,812		$	13.64
Exercised	(31,640	)	$	8.22
Canceled	(251,478	)	$	12.46
Outstanding at June 30, 2013	8,740,842		$	12.32
Vested and expected to vest at June 30, 2013	6,819,442		$	12.37
Exercisable at June 30, 2013	1,362,327		$	11.69