Stock-Based Compensation (Tables)

6 Months Ended

Jun. 30, 2012

Stock-Based Compensation

Summary of stock option activity

				WEIGHTED-
		WEIGHTED-		AVERAGE	AGGREGATE
		AVERAGE		REMAINING	INTRINSIC
		EXERCISE		CONTRACTUAL	VALUE
	SHARES	PRICE		LIFE (in years)	(in thousands)
Options outstanding at January 1, 2011	3,722,656	$	33.29	2.8
Granted	781,000	16.52
Exercised	(44,398)	11.97
Forfeited	(322,424)	55.57
Options outstanding at June 30, 2011	4,136,834	$	28.61	2.9	$	885
Available for future grant	3,233,548
Total shares reserved at June 30, 2011	7,370,382
Options exercisable at June 30, 2011	2,685,545	$	33.83	2.2	$	577
Options outstanding at January 1, 2012	3,948,874	$	28.91	2.4
Granted	736,000	18.22
Exercised	(53,736)	15.33
Forfeited	(600,958)	35.19
Options outstanding at June 30, 2012	4,030,180	$	26.20	3.0	$	19,230
Available for future grant	2,992,748
Total shares reserved at June 30, 2012	7,022,928
Options exercisable at June 30, 2012	2,590,876	$	30.54	1.9	$	8,883

Summary of activity related to the Company's restricted stock unit awards

	2012		2011
Restricted stock units at January 1	657,825		727,317
Shares awarded	400,568		305,000
Shares vested	(350,349	)	(304,492	)
Shares forfeited	(6,667	)	(60,000	)
Restricted stock units at June 30	701,377		667,825