Annual report pursuant to Section 13 and 15(d)

Stock-Based Compensation Plan (Schedule Of Shares Authorized Under Stock Option Plans, By Exercise Price Range) (Details)

v2.4.0.6
Stock-Based Compensation Plan (Schedule Of Shares Authorized Under Stock Option Plans, By Exercise Price Range) (Details) (USD $)
In Thousands, except Per Share data, unless otherwise specified
12 Months Ended
Dec. 31, 2012
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]  
Outstanding options 2,712
Exercisable options 1,557
Exercisable options, remaining life in years 6 years 3 months 18 days
Exercisable options, weighted average exercise price $ 7.82
$4.00 - $9.06 Exercise Price Range [Member]
 
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]  
Exercise price, lower limit $ 4.00
Exercise price, upper limit $ 9.06
Outstanding options 1,767
Exercisable options 1,127
Exercisable options, remaining life in years 6 years
Exercisable options, weighted average exercise price $ 6.99
$9.07 - $16.00 Exercise Price Range [Member]
 
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]  
Exercise price, lower limit $ 9.07
Exercise price, upper limit $ 16.00
Outstanding options 945
Exercisable options 430
Exercisable options, remaining life in years 8 years 6 months
Exercisable options, weighted average exercise price $ 9.99