Basic net earnings (loss) per share is calculated by dividing the net income (loss) by the weighted average number of common shares that were outstanding for the period, without consideration for common stock equivalents. The computation of diluted earnings per share assumes the issuance of common stock for all potentially dilutive stock options, restricted stock units and shares issuable under the Company's employee stock purchase plan. For periods when the Company realizes a net loss, no common stock equivalents are included in the calculation of weighted average number of dilutive common stock equivalents as the effect of applying the treasury stock method is considered anti-dilutive.

Reconciliations of the numerator and denominator of the basic and diluted earnings per share computations are as follows:


	Three months ended September 30,					Nine months ended September 30,
	2026		2025			2026			2025
	(in thousands)					(in thousands)
Numerator:
Net income (loss) attributable to common stockholders	$	2,018	$	(16,231	)	$	(36,142	)	$	(54,034	)

Denominator:
Weighted-average common shares outstanding, basic		59,105		57,398			58,651			57,083
Dilutive effect of stock options		900		—			—			—
Dilutive effect of performance-based stock options		342		—			—			—
Dilutive effect of restricted stock units		596		—			—			—
Dilutive effect of performance-based restricted stock units		246		—			—			—
Dilutive effect of employee stock purchase plan		7		—			—			—
Weighted-average common shares outstanding, diluted		61,196		57,398			58,651			57,083

Basic and diluted net loss per share are the same for the three months ended September 30, 2025 and the nine months ended September 30, 2026 and 2025 due to the Company’s net loss position. The following potentially dilutive securities were not included in the calculation of diluted net loss per share because to do so would be anti-dilutive (in common stock equivalent shares, in thousands):


	Three Months Ended		Nine Months Ended
	September 30,		September 30,
	2025		2026		2025
Stock options outstanding		1,897		1,560		1,965
Unvested restricted stock units		594		725		745
Employee stock purchase plan		2		8		1
Total		2,493		2,293		2,711