Pensions And Other Employee Benefits Plans (Benefit Payments Expected To Be Paid) (Details) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2012
Pension Benefits [Member]
Defined Benefit Plan Disclosure [Line Items]
2013	$ 19,698
2014	1,539
2015	1,530
2016	1,540
2017	1,536
2018 to 2022	10,002
Gross Benefit Payments [Member] | Other Benefits [Member]
Defined Benefit Plan Disclosure [Line Items]
2013	89
2014	96
2015	90
2016	78
2017	69
2018 to 2022	327
Medicare Subsidy Receipts [Member] | Other Benefits [Member]
Defined Benefit Plan Disclosure [Line Items]
2013	5
2014	5
2015	7
2016	8
2017	9
2018 to 2022	$ 54