Restructuring charges (Tables)

9 Months Ended

Sep. 30, 2019

Restructuring Cost and Reserve [Line Items]

Restructuring and Related Costs

Restructuring charges for each period were as follows:

	Nine months ended September 30,
(in thousands)	2019		2018
Cost of revenue	$	54	$	1,357
Research and development	556		12,032
Sales and marketing	314		5,042
General and administrative	501		3,095
Total restructuring charges	$	1,425	$	21,526

Schedule of Restructuring Reserve by Type of Cost

The following table provides a summary of the Company’s restructuring activities and the movement in the related liabilities recorded in accrued expenses and other current liabilities on the condensed consolidated balance sheet under the first quarter 2017 restructuring plan.

(in thousands)	Severance		Other			Total
Restructuring liability as of December 31, 2018	$	—	$	5,667		$	5,667
Restructuring charges	—		1,395			1,395
Cash paid	—		(1,082		)	(1,082		)
Non-cash reductions	—		(335		)	(335		)
Restructuring liability as of September 30, 2019	$	—	$	5,645		$	5,645

The following table provides a summary of the Company’s restructuring activities and the movement in the related liabilities recorded in accrued expenses and other current liabilities on the condensed consolidated balance sheet under the first quarter 2018 restructuring plan.

(in thousands)	Severance			Other			Total
Restructuring liability as of December 31, 2018	$	1,119		$	399		$	1,518
Restructuring charges	—			3			3
Cash paid	(1,095		)	(20		)	(1,115		)
Non-cash reductions	(24		)	(250		)	(274		)
Restructuring liability as of September 30, 2019	$	—		$	132		$	132

The following table provides a summary of the Company’s restructuring activities and the movement in the related liabilities recorded in accrued expenses and other current liabilities on the condensed consolidated balance sheet under the fourth quarter 2016 restructuring plan.

(in thousands)	Severance			Other			Total
Restructuring liability as of December 31, 2018	$	299		$	50		$	349
Restructuring charges	27			—			27
Cash paid	(78		)	—			(78		)
Non-cash reductions	—			(50		)	(50		)
Restructuring liability as of September 30, 2019	$	248		$	—		$	248