Annual report pursuant to Section 13 and 15(d)

Restructuring (Details)

v3.21.1
Restructuring (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2020
Dec. 31, 2019
Restructuring Cost and Reserve [Line Items]    
Balances as of January $ 3,193
Restructuring charges   3,325
Change in estimates (952)  
Reductions for cash payments (2,223) (132)
Balances as of December 18 3,193
Termination Benefits [Member]    
Restructuring Cost and Reserve [Line Items]    
Balances as of January 2,780
Restructuring charges   2,912
Change in estimates (539)  
Reductions for cash payments (2,223) (132)
Balances as of December 18 2,780
Contract Termination Costs [Member]    
Restructuring Cost and Reserve [Line Items]    
Balances as of January 413
Restructuring charges   413
Change in estimates (413)  
Balances as of December $ 413