The Company computes basic net income per share by dividing net income applicable to common stockholders by the weighted-average number of common shares outstanding during the period. Diluted net income per share is based upon the weighted-average number of common and common equivalent shares outstanding during the period. Only dilutive common equivalent shares that decrease the net income per share are included in the computation of diluted net income per share.

Common equivalent shares related to stock options, restricted stock units, and performance share units are calculated using the treasury stock method. Performance share units are included in the weighted-average common equivalent shares based on the number of shares that would be issued if the end of the reporting period were the end of the performance period, if the result would be dilutive.

See Note 9 for information on the convertible senior notes due in May 2025. For periods prior to the date of the Company's irrevocable election to settle the conversion premium in cash, the Company used the if-converted method to calculate the dilutive effect of the convertible senior notes.

A reconciliation of the weighted-average number of shares outstanding used in calculating diluted net income per share is as follows:


	Three Months Ended March 31,
(in thousands)		2025	2024
Weighted-average number of basic common shares outstanding		32,845	34,206
Weighted-average dilutive stock options, restricted stock units, and performance share units		248	290
Assumed conversion of convertible senior notes		—	210
Weighted-average number of diluted common and common equivalent shares outstanding		33,093	34,706