Pension and Other Employee Benefit Plans (Components of Unamortized Pension Costs) (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2012	Sep. 30, 2011	Sep. 30, 2012	Sep. 30, 2011
Compensation and Retirement Disclosure [Abstract]
Unamortized actuarial loss			$ 4,272
Deferred taxes			(1,593)
Net unamortized pension costs			2,679
Unamortized actuarial loss, Amortization			(1,602)
Deferred taxes, Amortization			597
Net unamortized pension costs, Amortization	(335)	(154)	(1,005)	(463)
Unamortized actuarial loss	2,670		2,670
Deferred taxes	(996)		(996)
Net unamortized pension costs	$ 1,674		$ 1,674