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Quarterly Results Of Operations
12 Months Ended
Dec. 31, 2011
Quarterly Results Of Operations [Abstract]  
Quarterly Results Of Operations

19. QUARTERLY RESULTS OF OPERATIONS (UNAUDITED)

The quarterly results of operations for 2011 and 2010 are summarized below.

 

Due to the use of weighted average shares outstanding when calculating earnings per common share, the sum of the quarterly per common share data may not equal the per common share data for the year.