Share-Based Compensation (Tables)

6 Months Ended

Jun. 30, 2012

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

Weighted-average assumptions for options issued during the indicated periods

	Six Months Ended June 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	(23,733)	$	47.15
Options exercised	(57,107)	$	17.02
Options outstanding, end of period	1,630,533	$	32.78
Options exercisable, end of period	1,035,896	$	31.87

Restricted stock activity

	Shares		Wtd. Avg. Grant Price
Restricted shares outstanding, beginning of period	834,703		$	31.89
Restricted shares granted	514,850		$	31.78
Restricted shares canceled	(35,256	)	$	32.45
Restricted shares vested	(349,766	)	$	26.23
Restricted shares outstanding, end of period	964,531		$	33.86