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Retirement Plans (Tables)
3 Months Ended
Mar. 31, 2013
Pension and Retirement Plans [Abstract]  
Schedule Of Expenses For Retirement, Profit-Sharing Plans, Excess Benefit Plans And Other Similar Plans

 

 

 

 

 

 

 

 

 

 

Three months ended March 31,

2013

 

2012

$

4,296 

 

$

4,695