Restructuring (Details) - USD ($) $ in Thousands	1 Months Ended	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2020	Dec. 31, 2019
Restructuring Cost and Reserve [Line Items]
Restructuring charges	$ 1,600	$ 384	$ 0	$ 730	$ 0
Restructuring Reserve	$ 1,000	0		0
Restructuring costs charged as period expense				1,000
Remaining expected restructuring costs		4,000		4,000
Restructuring and Related Cost, Cost Incurred to Date		2,300		2,300
Restructuring and Related Cost, Expected Cost Remaining		1,700		1,700
Restructuring Charges				700
Gain (Loss) on Disposition of Assets				200
United States
Restructuring Cost and Reserve [Line Items]
Remaining expected restructuring costs		1,200		1,200
Non-US
Restructuring Cost and Reserve [Line Items]
Remaining expected restructuring costs		$ 2,800		$ 2,800