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Shareholders' Equity (Tables)
 12 Months Ended
Dec. 31, 2013
Stockholders' Equity Note [Abstract]  
Schedule Of ATM Program
Set forth below is information regarding our ATM program. Shares and per share amounts have been adjusted for the three-for-two common stock split effected on September 7, 2012. 
Period
 
Aggregate
Number of
Shares Sold
 
Aggregate
Gross
Proceeds
 
Aggregate
Net Proceeds
 
Average Sales
Price Per Share
First quarter 2011
 
2,274,568

 
$
49,575,000

 
$
48,400,000

 
$
21.79