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Per Common Share Amounts
9 Months Ended
Sep. 30, 2023
Earnings Per Share [Abstract]  
Per Common Share Amounts Per Common Share Amounts
We calculate basic earnings per common share using the two class method. We calculate diluted earnings per common share using the more dilutive of the two class method or the treasury stock method. Unvested share awards and other potentially dilutive common shares, together with the related impact on earnings, are considered when calculating diluted earnings per common share. The calculation of basic and diluted earnings per common share is as follows (amounts in thousands, except per share data):
 Three Months Ended September 30,Nine Months Ended September 30,
 2023202220232022
Numerators:
Net (loss) income$(19,593)$16,964 $(32,281)$(12,499)
Income/loss attributable to unvested participating securities(50)(99)(232)(299)
Net (loss) income used in calculating earnings per common share$(19,643)$16,865 $(32,513)$(12,798)
Denominators:
Weighted average common shares outstanding - basic and diluted48,403 48,286 48,365 48,260 
Net (loss) income per common share - basic and diluted$(0.41)$0.35 $(0.67)$(0.27)