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Common Stock and Earnings Per Share
 12 Months Ended
Dec. 31, 2023
Earnings Per Share [Abstract]  
Common Stock and Earnings Per Share COMMON STOCK AND EARNINGS PER SHARE
Earnings per Share
The calculation of basic and diluted earnings per common share is as follows (in thousands, except per share amounts):
December 31
 202320222021
Numerator:
Earnings from continuing operations - basic$59,748 $196,438 $228,980 
Gain from stock warrants revaluation, net of tax$(174)$(170)$(15,564)
Convertible debt interest charge, net of tax$2,160 $3,051 $— 
Earnings from continuing operations - diluted$61,734 $199,319 $213,416 
Denominator:
Weighted-average shares outstanding for basic earnings per share68,641 73,611 68,853 
Common equivalent shares:
Effect of stock-based compensation awards and warrants1,251 6,602 7,363 
Effect of convertible debt5,669 8,111 — 
Weighted-average shares outstanding assuming dilution75,561 88,324 76,216 
Basic earnings per share from continuing operations$0.87 $2.67 $3.33 
Diluted earnings per share from continuing operations$0.82 $2.26 $2.80 
Basic weighted average shares outstanding for purposes of basic earnings per share are less than the shares outstanding due to 288,371 shares, 226,449 shares and 283,139 shares of restricted stock for 2023, 2022 and 2021, respectively, which are accounted for as part of diluted weighted average shares outstanding in diluted earnings per share.
The determination of diluted earnings per share requires the exclusion of the fair value re-measurement of the stock warrants recorded as a liability (see Note C), if such warrants have an anti-dilutive effect on earnings per share. The dilutive effect of the weighted-average diluted shares outstanding is calculated using the treasury method for periods in which equivalent shares have a dilutive effect on earnings per share. Under this method, the number of diluted shares is determined by dividing the assumed proceeds of the warrants recorded as a liability by the average stock price during the period and comparing that amount with the number of corresponding warrants outstanding.