Employee Benefit Plans (Schedule Of Net Periodic Benefit Cost) (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012
Defined Benefit Plan Disclosure [Line Items]
Service cost	$ 285	$ 266	$ 993	$ 1,048
Interest cost	344	319	1,197	1,257
Expected return on plan assets	(545)	(453)	(1,898)	(1,787)
Prior service cost	0	(24)	0	(94)
Recognized loss	284	317	990	1,251
Total	$ 368	$ 425	$ 1,282	$ 1,675