RESTRUCTURING COSTS AND ACCRUALS (Tables)

12 Months Ended

Dec. 31, 2021

Restructuring Cost and Reserve [Line Items]

Schedule of Restructuring and Related Costs [Table Text Block]

Restructuring Summary

The following table sets forth restructuring expenses recognized for the years ended December 31, 2021, 2020, and 2019 (in thousands):

	Year Ended December 31,
	2021		2020		2019
Employee	$	1,116	$	4,949	$	599
Facility	—		97		5
Total facility and employee charges	1,116		5,046		604
Other	—		—		25
Total restructuring charges, net	$	1,116	$	5,046	$	629

The following table sets forth the activity in the restructuring accruals for the years ended December 31, 2021, 2020, and 2019 (in thousands).

	Employee- Related		Facilities- Related		Total
Accrual balance at December 31, 2018	$	2,541	$	318	$	2,859
Restructuring charges and revisions	599		—		599
Cash payments	(2,964)		—		(2,964)
Foreign exchange impact on ending balance	(21)		—		(21)
Effect of adoption of ASC 842	—		(318)		(318)
Accrual balance at December 31, 2019	155		—		155
Restructuring charges and revisions	4,949		—		4,949
Cash payments	(1,461)		—		(1,461)
Foreign exchange impact on ending balance	44		—		44
Accrual balance at December 31, 2020	$	3,687	$	—	$	3,687
Restructuring charges and revisions	954		—		954
Cash payments	(3,947)		—		(3,947)
Foreign exchange impact on ending balance	(39)		—		(39)
Current accrual balance at December 31, 2021	$	655	$	—	$	655