Pensions And Other Employee Benefits (Amounts Recognized In Other Comprehensive Loss) (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2011
Pension Benefits [Member]
Defined Benefit Plan Disclosure [Line Items]
Actuarial loss during the period	$ (83,828)
Amortization of actuarial loss (gain)	5,379
Amortization of prior service credit	(2,719)
Total recognized in other comprehensive loss	(81,168)
Other Benefits [Member]
Defined Benefit Plan Disclosure [Line Items]
Actuarial loss during the period	(1,768)
Amortization of actuarial loss (gain)	(1,056)
Amortization of prior service credit	(728)
Total recognized in other comprehensive loss	$ (3,552)