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EARNINGS PER SHARE
9 Months Ended
Sep. 30, 2023
Earnings Per Share [Abstract]  
EARNINGS PER SHARE EARNINGS PER SHARE
Basic and diluted earnings per common share were calculated as follows (in thousands, except per share amounts):
 
Three Months Ended September 30,Nine Months Ended September 30,
2023202220232022
Basic weighted average number of shares outstanding36,603 36,569 36,677 36,736 
Effect of dilutive securities:
Unvested restricted stock475 377 432 400 
Diluted average shares outstanding37,078 36,946 37,109 37,136 
Net earnings$221,760 $262,489 $539,897 $729,827 
Basic earnings per share$6.06 $7.18 $14.72 $19.87 
Diluted earnings per share$5.98 $7.10 $14.55 $19.65