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, 2013
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Outstanding options	3,081
Exercisable options	2,137
Exercisable options, remaining life in years	4 years 8 months 12 days
Exercisable options, weighted average exercise price	$ 8.50
$4.00 - $10.39 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	$ 10.39
Outstanding options	2,125
Exercisable options	1,652
Exercisable options, remaining life in years	3 years 8 months 12 days
Exercisable options, weighted average exercise price	$ 7.91
$10.40 - $14.71 Exercise Price Range [Member]
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Exercise price, lower limit	$ 10.40
Exercise price, upper limit	$ 14.71
Outstanding options	956
Exercisable options	485
Exercisable options, remaining life in years	7 years 8 months 12 days
Exercisable options, weighted average exercise price	$ 10.54