Defined Benefit Plans (Net Periodic Benefit Costs) (Details) (USD $) In Thousands, unless otherwise specified	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	$ 8	$ 25	$ 24
Interest Cost	13	11	38	33
Amortization of prior service cost	6	5	15	16
Net periodic postretirement benefit cost	27	24	78	73
Other Benefits [Member]
Defined Benefit Plan Disclosure [Line Items]
Service Cost	3	4	10	13
Interest Cost	9	9	28	26
Amortization of prior service cost	1		1	1
Net periodic postretirement benefit cost	$ 13	$ 13	$ 39	$ 40