Earnings Per Share (Common Stock Equivalents Were Excluded From The Earnings Per Share Computation) (Details) In Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2011	Jun. 30, 2010	Jun. 30, 2011	Jun. 30, 2010
Common stock equivalents excluded from diluted net income (loss) per share computation	4,259	3,679	4,480	3,806
Weighted average number of stock options, SARs and RSUs, excluded due to the exercise/threshold price exceeding the average market price of common stock [Member]
Common stock equivalents excluded from diluted net income (loss) per share computation	4,116	3,679	4,222	3,806
Weighted average number of stock options, SARs and RSUs excluded due to reporting of net loss [Member]
Common stock equivalents excluded from diluted net income (loss) per share computation	143	0	258	0