Earnings per Share

3 Months Ended

Mar. 31, 2023

Basic earnings per share (EPS) is calculated using the weighted average number of common shares outstanding. Diluted EPS is calculated using the weighted average number of common shares outstanding, including the dilutive effect of the Company’s stock option grants, SARs, RSUs, employee stock purchase plan (ESPP) awards, and the 2023 Notes, as determined per the if-converted method.

Effect of Convertible Notes and Related Convertible Note Hedges and Warrants

In connection with the issuance of the 2023 Notes, the Company entered into Convertible Note Hedge and Warrant Transactions as described further in Note 8, Debt. The expected collective impact of the Convertible Note Hedge and Warrant Transactions is to reduce the potential dilution that would occur if the price of the Company's common stock was between the conversion price of $59.33 per share and the strike price of the warrants of $80.91 per share.

Diluted EPS related to the 2023 Notes is calculated using the if-converted method. The number of dilutive shares is based on the initial conversion rate associated with the 2023 Notes. The Convertible Note Hedge and Warrant Transactions are excluded in the calculation of diluted EPS because inclusion would be anti-dilutive. Specifically, the denominator of the diluted EPS calculation excludes the additional shares related to the warrants because the average price of the Company's common stock was less than the strike price of the warrants of $80.91 per share. Prior to actual conversion, the Convertible Note Hedge Transactions are not considered in calculating diluted earnings per share, as their impact would be anti-dilutive.

In addition to the above described effect of the 2023 Notes and the related Convertible Note Hedge and Warrant Transactions, the Company also excluded the common stock equivalents of the following outstanding stock-based awards in the calculation of diluted EPS, because their inclusion would be anti-dilutive:


	Three Months Ended March 31,
	2023	2022
	(unaudited)



Stock options, RSUs, PSUs	240,398	1,067,231

The following table sets forth the computation of basic and diluted net earnings per share for the three months ended March 31, 2023 and 2022 under the if-converted method (dollars in thousands, except share and per share amounts):


	Three Months Ended March 31,
	2023		2022
	(unaudited)
Numerator:
Net earnings	$	16,948	$	25,616
After-tax interest expense for 2023 Notes	892		887
Numerator for dilutive earnings per share	$	17,840	$	26,503
Denominator:
Weighted average shares outstanding, basic	54,380,947		53,330,837
Effect of dilutive securities:
Stock options, RSUs and SARs	1,289,321		1,291,782
Convertible notes	6,783,936		6,783,936
Weighted average shares outstanding, diluted	62,454,204		61,406,555

Earnings per share, basic	$	0.31	$	0.48
Earnings per share, diluted	$	0.29	$	0.43