Pension, Savings, And Other Employee Benefits (Schedule Of Components Of Net Periodic Benefit Cost) (Details) (USD $)	3 Months Ended			9 Months Ended
	Sep. 30, 2014		Sep. 30, 2013	Sep. 30, 2014		Sep. 30, 2013
Pension Benefits [Member]
Defined Benefit Plan Disclosure [Line Items]
Service cost	$ 8,000		$ (77,000)	$ 42,000		$ 47,000
Interest cost	8,866,000		8,097,000	26,186,000		24,271,000
Expected return on plan assets	(10,034,000)		(8,756,000)	(30,070,000)		(26,210,000)
Amortization of unrecognized, Prior service cost/(credit)	86,000		89,000	260,000		265,000
Amortization of unrecognized, Actuarial (gain)/loss	1,904,000		2,585,000	5,174,000		7,374,000
Net periodic benefit cost	830,000		1,938,000	1,592,000		5,747,000
ASC 715 settlement expense	0		0	0		370,000
ASC 715 special termination benefits	1,009,000	[1]	0	1,009,000	[1]	0
Total periodic benefit costs	1,839,000		1,938,000	2,601,000		6,117,000
Other Benefits [Member]
Defined Benefit Plan Disclosure [Line Items]
Service cost	45,000		114,000	155,000		382,000
Interest cost	400,000		505,000	1,316,000		1,601,000
Expected return on plan assets	(259,000)		(199,000)	(769,000)		(593,000)
Amortization of unrecognized, Prior service cost/(credit)	(290,000)		(25,000)	(872,000)		(9,000)
Amortization of unrecognized, Actuarial (gain)/loss	(377,000)		(106,000)	(755,000)		(72,000)
Net periodic benefit cost	(481,000)		289,000	(925,000)		1,309,000
ASC 715 settlement expense	0		0	0		0
ASC 715 special termination benefits	0		0	0		0
Total periodic benefit costs	$ (481,000)		$ 289,000	$ (925,000)		$ 1,309,000

[1] In third quarter 2014, a one-time special termination benefits charge was recongnized related to recalculation of a participant's benefit under a non-qualifed plan upon retirement.