Stock-Based Compensation (Tables)

6 Months Ended

Jun. 30, 2011

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, 2010	3,693,697		$	36.43	3.1
Granted	846,000		23.30
Exercised	(95,064	)	7.80
Forfeited	(364,953	)	50.70
Options outstanding at June 30, 2010	4,079,680		$	33.10	3.2	$	1,501
Available for future grant	1,220,742
Total shares reserved at June 30, 2010	5,300,422
Options exercisable at June 30, 2010	2,806,552		$	37.84	2.8	$	1,055
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

Summary of activity relating to restricted stock unit awards

	2011		2010
Restricted stock units at January 1	727,317		609,812
Shares awarded	305,000		404,000
Shares vested	(304,492	)	(225,496	)
Shares forfeited	(60,000	)	(50,999	)
Restricted stock units at June 30	667,825		737,317