Pension Plan (Components Of Net Periodic Benefit Expense) (Details) (USD $)	3 Months Ended		6 Months Ended
	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013
Defined Benefit Plan, Net Periodic Benefit Cost [Abstract]
Service cost	$ 1,083,000	$ 1,204,000	$ 2,166,000	$ 2,408,000
Interest cost	1,144,000	1,056,000	2,288,000	2,112,000
Expected return on plan assets	(2,717,000)	(2,384,000)	(5,434,000)	(4,768,000)
Amortization of prior service cost	5,000	5,000	10,000	10,000
Recognized net actuarial loss	0	676,000	0	1,352,000
Benefit expense	(485,000)	557,000	(970,000)	1,114,000
Pension plan contributions			$ 0	$ 12,600,000