Compensation Programs (Schedule Of Option Award Activity) (Details) (USD $)	6 Months Ended
	Jun. 30, 2011
Compensation Programs
Option awards outstanding at December 31, 2010, Number of Shares	288,125
Option awards outstanding at December 31, 2010 ,Weighted Average Exercise Price	$ 10.48
Exercises, Number of Shares	(6,875)
Exercises, Weighted Average Exercise Price	$ 9.61
Option awards outstanding at June 30, 2011, Number of Shares	281,250
Option awards outstanding at June 30, 2011, Weighted Average Exercise Price	$ 10.51