Employee Benefit Plans (Schedule of Expected Benefit Payments) (Details) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2012
Pension [Member]
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Defined Benefit Plan, Expected Future Benefit Payments, Next Twelve Months	$ 1,053
Defined Benefit Plan, Expected Future Benefit Payments, Year Two	1,085
Defined Benefit Plan, Expected Future Benefit Payments, Year Three	1,119
Defined Benefit Plan, Expected Future Benefit Payments, Year Four	1,203
Defined Benefit Plan, Expected Future Benefit Payments, Year Five	1,235
Defined Benefit Plan, Expected Future Benefit Payments, Five Fiscal Years Thereafter	7,830
SERP [Member]
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Defined Benefit Plan, Expected Future Benefit Payments, Next Twelve Months	127
Defined Benefit Plan, Expected Future Benefit Payments, Year Two	194
Defined Benefit Plan, Expected Future Benefit Payments, Year Three	187
Defined Benefit Plan, Expected Future Benefit Payments, Year Four	179
Defined Benefit Plan, Expected Future Benefit Payments, Year Five	237
Defined Benefit Plan, Expected Future Benefit Payments, Five Fiscal Years Thereafter	$ 1,901