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Pension Plan Accumulated Other Comprehensive Income (Loss) Not Recognized As Components Of Net Periodic Benefit Costs (Details) (Supplemental Employee Retirement Plans, Defined Benefit [Member], USD $)
In Thousands, unless otherwise specified
Sep. 30, 2012
Supplemental Employee Retirement Plans, Defined Benefit [Member]
 
Defined Benefit Plan Disclosure [Line Items]  
Transition asset (obligation) $ 0
Prior service cost 0
Accumulated loss (2,279)
Total $ (2,279)