Pension Plan (Components Of Net Periodic Benefit Expense) (Details) (USD $)	3 Months Ended		9 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013
Defined Benefit Plan, Net Periodic Benefit Cost [Abstract]
Service cost	$ 1,083,000	$ 1,204,000	$ 3,249,000	$ 3,612,000
Interest cost	1,144,000	1,056,000	3,432,000	3,168,000
Expected return on plan assets	(2,717,000)	(2,384,000)	(8,151,000)	(7,152,000)
Amortization of prior service cost	5,000	5,000	15,000	15,000
Recognized net actuarial loss	0	676,000	0	2,028,000
Benefit expense	(485,000)	557,000	(1,455,000)	1,671,000
Pension plan contributions			$ 0	$ 12,600,000