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, 2013	Jun. 30, 2012	Jun. 30, 2013	Jun. 30, 2012
Changes of Unamortized Pension Costs Recognized in Stockholders’ Equity [Roll Forward]
Unamortized actuarial loss			$ 2,364
Deferred taxes			(882)
Net unamortized pension costs			1,482
Unamortized actuarial loss, Amortization			(1,182)
Deferred taxes, Amortization			441
Net unamortized pension costs, Amortization	(370)	(335)	(741)	(670)
Unamortized actuarial loss	1,182		1,182
Deferred taxes	(441)		(441)
Net unamortized pension costs	$ 741		$ 741