Share-Based Compensation (Tables)

9 Months Ended

Sep. 30, 2012

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

Weighted-average assumptions for options issued during the indicated periods

	Nine Months Ended September 30,
	2012	2011
Dividend yield	0%	0%
Expected volatility	61.2%	58.8%
Risk-free interest rate	0.8%	1.9%
Expected life of options (in years)	4.3	3.8
Weighted-average grant-date fair value	$15.71	$19.17

Stock option activity

	Shares	Wtd. Avg. Exercise Price
Options outstanding, beginning of period	1,375,281	$	32.46
Options granted	336,092	$	32.39
Options canceled	(32,610)	$	41.19
Options exercised	(70,297)	$	15.92
Options outstanding, end of period	1,608,466	$	32.97
Options exercisable, end of period	1,013,829	$	32.16

Restricted stock activity

	Shares		Wtd. Avg. Grant Price
Restricted shares outstanding, beginning of period	834,703		$	31.89
Restricted shares granted	529,050		$	31.50
Restricted shares canceled	(67,943	)	$	33.73
Restricted shares vested	(369,465	)	$	26.48
Restricted shares outstanding, end of period	926,345		$	33.69