Pension and Other Employee Benefit Plans (Components of Net Periodic Benefit 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]
Interest cost	$ 103	$ 112	$ 307	$ 336
Expected return on plan assets	(132)	(140)	(395)	(422)
Amortization of prior service costs	0	(7)	0	(19)
Recognized actuarial loss	534	246	1,602	738
Net pension cost	$ 505	$ 211	$ 1,514	$ 633