Intangible assets (Tables)

12 Months Ended

Dec. 31, 2020

Goodwill and Intangible Assets Disclosure [Abstract]

Schedule of Finite-Lived Intangible Assets

Intangible assets, net of accumulated amortization, are summarized as follows (in thousands):

	As of December 31,						As of December 31,
	2020						2019
	Cost		Accumulated amortization		Net		Cost		Accumulated amortization		Net
Developed technology	$	30,100	$	(24,456)	$	5,644	$	30,100	$	(20,694)	$	9,406
In-licensed rights	5,224		(827)		4,397		5,224		(304)		4,920
Total	$	35,324	$	(25,283)	$	10,041	$	35,324	$	(20,998)	$	14,326

Schedule of Finite-Lived Intangible Assets, Future Amortization Expense

The following table summarizes the estimated future amortization for intangible assets for the next five years and thereafter (in thousands):

	As of December 31, 2020
2021	$	4,285
2022	2,404
2023	522
2024	522
2025	522
2026 and thereafter	1,786
Total	$	10,041