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Net Income Per Share
 3 Months Ended
Mar. 31, 2024
Earnings Per Share [Abstract]  
Net Income Per Share Net Income Per Share
The Company issues certain performance-based RSUs determined to be participating securities because holders of such shares have non-forfeitable dividend rights in the event of the Company’s declaration of a dividend for common shares. As of March 31, 2024 and 2023, there were 343,825 and 387,237 participating securities outstanding, respectively.
Undistributed net income allocated to participating securities are subtracted from net income in determining basic net income attributable to common stockholders. Basic net income per share is computed by dividing basic net income attributable to common stockholders by the weighted average number of shares, inclusive of undistributed shares held in the DCP as phantom shares of the Company’s Class B common stock.
For the Company’s diluted net income per share numerator, interest expense, net of tax, attributable to the assumed conversion of the convertible senior notes is added back to basic net income attributable to common stockholders. For the Company’s diluted net income per share denominator, the basic weighted average number of shares is adjusted for the effect of dilutive securities, including awards under the Company’s equity compensation plans and ESPP, and for the dilutive effect of the assumed conversion of the convertible senior notes. Diluted net income per share attributable to common stockholders is computed by dividing diluted net income attributable to common stockholders by the weighted average number of fully diluted common shares.
Except with respect to voting and conversion, the rights of the holders of the Company’s Class A common stock and the Company’s Class B common stock are identical. Each class of shares has the same rights to dividends and allocation of income (loss) and, therefore, net income per share would not differ under the two‑class method.
The details of basic and diluted net income per share are as follows:
Three Months Ended
March 31,
20242023
Numerator:
Net income
$70,310 $45,490 
Less: Net income attributable to participating securities
(21)(19)
Net income attributable to Class A and Class B common stockholders, basic
70,289 45,471 
Add: Interest expense, net of tax, attributable to assumed conversion of convertible senior notes1,723 1,717 
Net income attributable to Class A and Class B common stockholders, diluted
$72,012 $47,188 
Denominator:
Weighted average shares, basic314,295,102 310,758,802 
Dilutive effect of stock options, restricted stock, and RSUs1,686,026 2,844,855 
Dilutive effect of ESPP8,604 14,441 
Dilutive effect of assumed conversion of convertible senior notes17,633,786 17,633,786 
Weighted average shares, diluted333,623,518 331,251,884 
Net income per share, basic
$0.22 $0.15 
Net income per share, diluted
$0.22 $0.14 
The following potential common shares were excluded from the calculation of diluted net income per share attributable to common stockholders because their effect would have been anti‑dilutive for the periods presented:
Three Months Ended
March 31,
20242023
RSUs— 87,388 
Total anti-dilutive securities— 87,388