Employee Benefit Plans (Components 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
Pension Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Service cost	$ 124	$ 164	$ 504	$ 492
Interest cost	330	357	1,002	1,071
Expected return on plan assets	(560)	(497)	(1,674)	(1,491)
Amortization of prior service cost	(1)	(1)	(3)	(3)
Amortization of Net Loss	220	192	666	576
Net periodic benefit cost	113	215	495	645
Postretirement Benefits [Member]
Defined Benefit Plan Disclosure [Line Items]
Service cost	6	13	18	39
Interest cost	119	130	357	390
Amortization of prior service cost	25	(3)	75	(9)
Amortization of Net Loss	63	71	189	213
Net periodic benefit cost	$ 213	$ 211	$ 639	$ 633