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Stocholders' Equity (Tables)
9 Months Ended
Sep. 30, 2021
Stockholders' Equity Note [Abstract]  
Schedule of computation of diluted weighted average number of common shares outstanding

Three Months Ended
September 30,

Nine Months Ended
September 30,

 
2021

2020

2021

2020

Computation of diluted weighted average shares outstanding:








Basic weighted average shares outstanding
52,829,386

52,294,522

52,799,199

52,712,030

Incremental shares from assumed exercise of stock options and vesting of restricted stock
1,024,289

907,449

1,134,027


Diluted weighted average shares outstanding 
53,853,675

53,201,971

53,933,226

52,712,030