Stock-Based Compensation (Tables)

6 Months Ended

Jun. 30, 2012

Stock-Based Compensation [Abstract]

Summary Of Stock Option Activity

	Shares				Range of Exercise Prices				Weighted-Average Exercise Price
Options outstanding at January 1, 2012			358			$	0.03 – 9.19		$	4.61
Options exercised		(15		)				0.03 – 3.10			0.35
Options canceled		(9		)				1.15 – 4.40			1.45
Options outstanding at June 30, 2012		334						0.50 – 9.19			4.88
Options vested at June 30, 2012		334						0.50 – 9.19			4.88

Summary Of Restricted Stock Activity

	Shares			Weighted-Average Grant Date Fair Value
Restricted stock awards outstanding at January 1, 2012		2,043		$	9.16
Awards granted		396			11.75
Awards vested		(237	)		10.30
Awards forfeited		(115	)		8.79
Restricted stock awards outstanding at June 30, 2012		2,087			9.53