Pensions and Other Employee Benefits Plans (Changes in Fair Value of Pension Plan Assets) (Details) (USD $) In Thousands, unless otherwise specified	1 Months Ended			12 Months Ended		12 Months Ended		12 Months Ended		12 Months Ended				12 Months Ended		12 Months Ended
	Apr. 30, 2013	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2012 Level 3 [Member]	Dec. 31, 2013 Level 3 [Member]	Dec. 31, 2012 Private Equity Funds [Member] Level 3 [Member]	Dec. 31, 2013 Private Equity Funds [Member] Level 3 [Member]	Dec. 31, 2012 Equity Long/Short Fund [Member] Level 3 [Member]	Dec. 31, 2013 Equity Long/Short Fund [Member] Level 3 [Member]	Dec. 31, 2012 Distressed Opportunity Ltd. Partnership [Member] Level 3 [Member]	Dec. 31, 2013 Distressed Opportunity Ltd. Partnership [Member] Level 3 [Member]	Dec. 31, 2012 Other Limited Partnership [Member] Level 3 [Member]	Dec. 31, 2011 Other Limited Partnership [Member] Level 3 [Member]	Dec. 31, 2012 Multi Strategy Funds [Member] Level 3 [Member]	Dec. 31, 2013 Multi Strategy Funds [Member] Level 3 [Member]	Dec. 31, 2012 Real Estate Funds [Member] Level 3 [Member]	Dec. 31, 2013 Unrealized Gain/(Loss) [Member] Level 3 [Member]	Dec. 31, 2012 Unrealized Gain/(Loss) [Member] Level 3 [Member]	Dec. 31, 2013 Unrealized Gain/(Loss) [Member] Private Equity Funds [Member] Level 3 [Member]	Dec. 31, 2012 Unrealized Gain/(Loss) [Member] Private Equity Funds [Member] Level 3 [Member]	Dec. 31, 2013 Unrealized Gain/(Loss) [Member] Equity Long/Short Fund [Member] Level 3 [Member]	Dec. 31, 2012 Unrealized Gain/(Loss) [Member] Equity Long/Short Fund [Member] Level 3 [Member]	Dec. 31, 2013 Unrealized Gain/(Loss) [Member] Distressed Opportunity Ltd. Partnership [Member] Level 3 [Member]	Dec. 31, 2012 Unrealized Gain/(Loss) [Member] Distressed Opportunity Ltd. Partnership [Member] Level 3 [Member]	Dec. 31, 2013 Unrealized Gain/(Loss) [Member] Other Limited Partnership [Member] Level 3 [Member]	Dec. 31, 2012 Unrealized Gain/(Loss) [Member] Other Limited Partnership [Member] Level 3 [Member]	Dec. 31, 2013 Unrealized Gain/(Loss) [Member] Multi Strategy Funds [Member] Level 3 [Member]	Dec. 31, 2012 Unrealized Gain/(Loss) [Member] Multi Strategy Funds [Member] Level 3 [Member]	Dec. 31, 2012 Realized Gain/(Loss) [Member] Level 3 [Member]	Dec. 31, 2012 Realized Gain/(Loss) [Member] Private Equity Funds [Member] Level 3 [Member]	Dec. 31, 2012 Realized Gain/(Loss) [Member] Equity Long/Short Fund [Member] Level 3 [Member]	Dec. 31, 2012 Realized Gain/(Loss) [Member] Distressed Opportunity Ltd. Partnership [Member] Level 3 [Member]	Dec. 31, 2012 Realized Gain/(Loss) [Member] Multi Strategy Funds [Member] Level 3 [Member]	Dec. 31, 2012 Realized Gain/(Loss) [Member] Real Estate Funds [Member] Level 3 [Member]	Dec. 31, 2013 Purchases [Member] Level 3 [Member]	Dec. 31, 2012 Purchases [Member] Level 3 [Member]	Dec. 31, 2013 Purchases [Member] Private Equity Funds [Member] Level 3 [Member]	Dec. 31, 2012 Purchases [Member] Private Equity Funds [Member] Level 3 [Member]	Dec. 31, 2012 Purchases [Member] Other Limited Partnership [Member] Level 3 [Member]	Dec. 31, 2013 Sales [Member] Level 3 [Member]	Dec. 31, 2012 Sales [Member] Level 3 [Member]	Dec. 31, 2013 Sales [Member] Private Equity Funds [Member] Level 3 [Member]	Dec. 31, 2012 Sales [Member] Private Equity Funds [Member] Level 3 [Member]	Dec. 31, 2013 Sales [Member] Other Limited Partnership [Member] Level 3 [Member]	Dec. 31, 2012 Sales [Member] Other Limited Partnership [Member] Level 3 [Member]	Dec. 31, 2012 Sales [Member] Real Estate Funds [Member] Level 3 [Member]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Beginning balance		$ 24,628	$ 20,207	$ 54,431	$ 2,784	$ 6,870	$ 287	$ 10,557	$ 842	$ 5,217	$ 364	$ 33	$ 36	$ 19,916	$ 1,291	$ 11,835
Realized and unrealized gain/(loss)																	377	(1,372)	62	(441)	160	(1,027)	65	(241)	(10)	2	100	335	3,825	413	2,221	211	142	838
Purchases and sales																																			9	423	9	400	23	(90)	(2,376)	(67)	(1,600)	(23)	(28)	(748)
Asset transfer due to Sale	1,200			(52,443)		(5,359)		(11,069)		(4,888)				(19,202)		(11,925)
Ending balance		$ 24,628	$ 20,207	$ 2,488	$ 2,784	$ 283	$ 287	$ 682	$ 842	$ 299	$ 364	$ 33	$ 36	$ 1,191	$ 1,291