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COMMON STOCK AND EARNINGS PER SHARE (Tables)
3 Months Ended
Mar. 31, 2012
COMMON STOCK AND EARNINGS PER SHARE  
Reconciliation of number of shares used in the calculation of basic and diluted earnings (loss) per common share

 

 

 

 

Three months ended

 

 

 

March 31,
2012

 

March 31,
2011

 

Weighted average shares of common stock outstanding—basic

 

46,496

 

46,161

 

Potentially dilutive shares resulting from stock plans

 

600

 

714

 

 

 

 

 

 

 

Weighted average common shares—diluted

 

47,096

 

46,875

 

 

 

 

 

 

 

Antidilutive options not included in the weighted average common shares-diluted

 

262