Summary of Significant Accounting Policies (Tables)

6 Months Ended

Jun. 30, 2020

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, 2020 and 2019, were as follows (in thousands):

	Three Months Ended				Six Months Ended
	June 30,				June 30,
	2020		2019		2020		2019
Product revenue:
Europe, Middle East and Africa	$	14,462	$	12,748	$	26,682	$	25,400
North America		6,400		5,158		12,477		9,709
Other		641		303		955		604
Total product revenue	$	21,503	$	18,209	$	40,114	$	35,713

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, 2020 and 2019 (shares in thousands):

	Three Months Ended				Six Months Ended
	June 30,				June 30,
	2020		2019		2020		2019
Weighted average number of anti-dilutive potential shares:
Stock options		18,492		17,691		17,927		17,670
Restricted stock units		5,704		2,897		5,223		2,578
Employee stock purchase plan rights		29		—		77		—
Total		24,225		20,588		23,227		20,248