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Net Earnings Per Share
 6 Months Ended
Jun. 30, 2022
Earnings Per Share [Abstract]  
Net Earnings Per Share Net Earnings Per Share Basic EPS is computed by dividing net earnings available to common stockholders by the weighted average number of common shares outstanding during each period. Diluted EPS is
computed on the basis of the weighted average number of shares of common stock plus the effect of dilutive potential common shares outstanding during the period using the treasury stock method. Dilutive potential common shares include outstanding restricted stock units (“RSUs”) and certain shares underlying the Notes. A reconciliation of the denominators of the basic and diluted EPS calculations follows (in thousands, except per share data):
Three Months Ended
June 30,		Six Months Ended
June 30,
2022202120222021
Numerator:
Net earnings$89,184 $58,561 $145,815 $101,729 
Denominator:
Weighted average shares used to compute basic EPS35,083 35,097 35,028 35,148 
Dilutive potential common shares due to dilutive RSUs, net of tax effect199 378 265 420 
Dilutive potential common shares due to the Notes1,539 1,660 1,608 1,349 
Weighted average shares used to compute diluted EPS36,821 37,135 36,901 36,917 
Net earnings per share:
Basic$2.54 $1.67 $4.16 $2.89 
Diluted$2.42 $1.58 $3.95 $2.76 
For the three and six months ended June 30, 2022, 38,000 and 26,000, respectively, of our RSUs were excluded from the diluted EPS calculations because their inclusion would have been anti-dilutive. Certain potential outstanding shares from the warrants relating to the Call Spread Transactions were excluded from the diluted EPS calculations because their inclusion would have been anti-dilutive. For the three and six months ended June 30, 2021, 200 and 100, respectively, of our RSUs were excluded from the diluted EPS calculations and certain potential outstanding shares from the warrants were excluded from the diluted EPS calculations because their inclusion would have been anti-dilutive.