Summary of Significant Accounting Policies (Tables)

6 Months Ended

Jun. 30, 2021

Accounting Policies [Abstract]

Summary of Product Revenue by Geographical Locations of Customers

Product revenue by geographical locations of customers during the three and six months ended June 30, 2021 and 2020, were as follows (in thousands):

	Three Months Ended				Six Months Ended
	June 30,				June 30,
	2021		2020		2021		2020
Product revenue:
Europe, Middle East and Africa	$	16,231	$	14,462	$	29,508	$	26,682
North America		14,647		6,400		24,311		12,477
Other		606		641		1,044		955
Total product revenue	$	31,484	$	21,503	$	54,863	$	40,114

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 three and six months ended June 30, 2021 and 2020 (shares in thousands):

	Three Months Ended				Six Months Ended
	June 30,				June 30,
	2021		2020		2021		2020
Weighted average number of anti-dilutive potential shares:
Stock options		16,863		18,492		16,760		17,927
Restricted stock units		6,777		5,704		6,581		5,223
Employee stock purchase plan rights		33		29		40		77
Total		23,673		24,225		23,381		23,227