Summary of Significant Accounting Policies (Tables)

12 Months Ended

Dec. 31, 2023

Accounting Policies [Abstract]

Summary of Product Revenue by Geographical Locations of Customers

Product revenue by geographical locations of customers during the years ended December 31, 2023, 2022 and 2021, was as follows (in thousands):

	Year Ended December 31,
	2023		2022		2021
Product revenue:
North America	$	99,187	$	103,978	$	68,968
Europe, Middle East and Africa		55,008		56,297		60,124
Other		2,172		1,773		1,767
Total product revenue	$	156,367	$	162,048	$	130,859

Computation of Basic and Diluted Net Loss per Share

The following table sets forth the reconciliation of the numerator and denominator used in the computation of basic and diluted net loss per share for the years ended December 31, 2023, 2022 and 2021 (in thousands, except per share amounts):

	Year Ended December 31,
	2023			2022			2021
Numerator for Basic and Diluted:
Net loss attributable to Cerus Corporation	$	(37,489	)	$	(42,779	)	$	(54,374	)
Denominator:
Basic weighted average number of shares outstanding		180,270			176,545			171,279
Effect of dilutive potential shares		—			—			—
Diluted weighted average number of shares outstanding		180,270			176,545			171,279
Net loss per share attributable to Cerus Corporation:
Basic and diluted	$	(0.21	)	$	(0.24	)	$	(0.32	)

Anti-Dilutive Effect of Common Shares

The table below presents potential shares that were excluded from the calculation of the weighted average number of shares outstanding used for the calculation of diluted net loss per share. These are excluded from the calculation due to their anti-dilutive effect for the years ended December 31, 2023, 2022 and 2021 (shares in thousands):

	Year Ended December 31,
	2023		2022		2021
Weighted average number of anti-dilutive potential shares:
Stock options		14,896		16,072		16,345
Restricted stock units		10,192		7,966		6,798
Employee stock purchase plan rights		396		252		153
Total		25,484		24,290		23,296