Pensions and Other Employee Benefits Plans (Components of Net Periodic Cost) (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Pension Benefits [Member]
Defined Benefit Plan Disclosure [Line Items]
Service cost	$ 311	$ 824	$ 802
Interest cost	1,843	2,523	2,480
Expected return on plan assets	(1,503)	(1,435)	(1,376)
Recognition due to curtailment	1,671	(1,497)
Amortization of net actuarial loss	5,947	748	268
Net periodic cost	8,269	1,163	2,174
Other Benefits [Member]
Defined Benefit Plan Disclosure [Line Items]
Service cost	2	6	5
Interest cost	65	45	48
Recognition due to curtailment	78
Amortization of net actuarial loss	44	12	5
Amortization of prior service credits	9	(24)	(24)
Net periodic cost	$ 198	$ 39	$ 34