Pension and Other Employee Benefit Plans (Components of Unamortized Pension Costs) (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2012	Jun. 30, 2011	Jun. 30, 2012	Jun. 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			(1,068)
Deferred taxes, Amortization			398
Net unamortized pension costs, Amortization	(335)	(154)	(670)	(309)
Unamortized actuarial loss	3,204		3,204
Deferred taxes	(1,195)		(1,195)
Net unamortized pension costs	$ 2,009		$ 2,009