Employee Benefit Plans (Schedule Of Net Periodic Benefit Cost) (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended			6 Months Ended
	Jun. 30, 2013	Jun. 30, 2012		Jun. 30, 2013	Jun. 30, 2012
Defined Benefit Plan Disclosure [Line Items]
Service cost	$ 282	$ 391	[1]	$ 708	$ 782	[1]
Interest cost	340	469	[1]	853	938	[1]
Expected return on plan assets	(539)	(667)	[1]	(1,353)	(1,334)	[1]
Prior service cost	0	(35)	[1]	0	(70)	[1]
Recognized loss	281	467	[1]	706	934	[1]
Total	$ 364	$ 625	[1]	$ 914	$ 1,250	[1]

[1] Effective January 1, 2012, our supplemental retirement plans were amended and designated as defined contribution plans. Prior years’ operating results were restated to conform to the current year presentation. This item had no impact on previously reported net income, earnings per share, the consolidated balance sheet or cash flows.