Annual report pursuant to Section 13 and 15(d)

Restructuring Activity Restructuring Activity (Details 2)

v3.20.4
Restructuring Activity Restructuring Activity (Details 2) - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2020
Dec. 31, 2019
Dec. 31, 2018
Restructuring Reserve [Roll Forward]      
Restructuring Reserve $ (837) $ (1,946)  
Restructuring charges 3,833 2,636 $ 3,838
Restructuring Reserve, Accrual Adjustment   (299)  
Payments for Restructuring (2,523) (3,442)  
Reimbursement due from Intel 4,415    
Restructuring Reserve, Settled without Cash 2,565 4  
Restructuring Reserve (3,997) (837) (1,946)
Impairment of leased right-of-use assets 1,508 9,240 0
One-time Termination Benefits [Member]      
Restructuring Reserve [Roll Forward]      
Restructuring Reserve 0 (409)  
Restructuring charges 1,620 1,150 2,094
Restructuring Reserve, Accrual Adjustment   0  
Payments for Restructuring (2,165) (1,559)  
Reimbursement due from Intel (4,415)    
Restructuring Reserve, Settled without Cash 596 0  
Restructuring Reserve (3,274) 0 (409)
Facility Closing [Member]      
Restructuring Reserve [Roll Forward]      
Restructuring Reserve (818)    
Restructuring charges 1,998 1,301 1,608
Restructuring Reserve (720) (818)  
Lease Related Impairment [Member]      
Restructuring Reserve [Roll Forward]      
Restructuring Reserve   (1,490)  
Restructuring charges 1,998 1,301  
Restructuring Reserve, Accrual Adjustment   (299)  
Payments for Restructuring (322) (1,720)  
Reimbursement due from Intel 0    
Restructuring Reserve, Settled without Cash 1,774 46  
Restructuring Reserve     (1,490)
Other Restructuring [Member]      
Restructuring Reserve [Roll Forward]      
Restructuring Reserve (19) (47)  
Restructuring charges 215 185 136
Restructuring Reserve, Accrual Adjustment   0  
Payments for Restructuring (36) (163)  
Reimbursement due from Intel 0    
Restructuring Reserve, Settled without Cash 195 50  
Restructuring Reserve (3) $ (19) $ (47)
Restructuring - Long term [Domain]      
Restructuring Reserve [Roll Forward]      
Restructuring Reserve (369)    
Restructuring - Long term [Domain] | One-time Termination Benefits [Member]      
Restructuring Reserve [Roll Forward]      
Restructuring Reserve 0    
Restructuring - Long term [Domain] | Facility Closing [Member]      
Restructuring Reserve [Roll Forward]      
Restructuring Reserve (369)    
Restructuring - Long term [Domain] | Other Restructuring [Member]      
Restructuring Reserve [Roll Forward]      
Restructuring Reserve 0    
Restructuring - Short term [Domain]      
Restructuring Reserve [Roll Forward]      
Restructuring Reserve (3,628)    
Restructuring - Short term [Domain] | One-time Termination Benefits [Member]      
Restructuring Reserve [Roll Forward]      
Restructuring Reserve (3,274)    
Restructuring - Short term [Domain] | Facility Closing [Member]      
Restructuring Reserve [Roll Forward]      
Restructuring Reserve (351)    
Restructuring - Short term [Domain] | Other Restructuring [Member]      
Restructuring Reserve [Roll Forward]      
Restructuring Reserve $ (3)