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Restructuring (Details)
$ in Thousands
3 Months Ended
Mar. 29, 2020
USD ($)
Dec. 29, 2019
USD ($)
employees
Mar. 31, 2019
USD ($)
Apr. 01, 2018
USD ($)
employees
Restructuring Cost and Reserve [Line Items]        
Restructuring charges $ 1,576   $ (665)  
Restructuring incurred cost $ 9,000      
February 2018 Restructuring Plan        
Restructuring Cost and Reserve [Line Items]        
Reorganization, number of jobs affected as a percentage of global workforce       3.00%
Minimum | February 2018 Restructuring Plan        
Restructuring Cost and Reserve [Line Items]        
Reorganization, number of jobs affected | employees       150
Restructuring charges       $ 20,000
Severance costs       11,000
Payments for restructuring       12,000
Real estate lease termination and other associated costs       $ 9,000
Minimum | Spinoff | December 2019 Restructuring Plan        
Restructuring Cost and Reserve [Line Items]        
Reorganization, number of jobs affected | employees   145    
Reorganization, number of jobs affected as a percentage of global workforce   3.00%    
Restructuring and related cost, exiting period   12 months    
Restructuring charges   $ 16,000    
Severance costs   8,000    
Retention cost   8,000    
Payments for restructuring   $ 14,000    
Minimum | Spinoff | December 2019 Restructuring Plan | SunPower Technologies        
Restructuring Cost and Reserve [Line Items]        
Reorganization, number of jobs affected | employees   65    
Minimum | Spinoff | December 2019 Restructuring Plan | SunPower Energy Services        
Restructuring Cost and Reserve [Line Items]        
Reorganization, number of jobs affected | employees   80    
Maximum | February 2018 Restructuring Plan        
Restructuring Cost and Reserve [Line Items]        
Reorganization, number of jobs affected | employees       250
Restructuring charges       $ 30,000
Severance costs       16,000
Payments for restructuring       20,000
Real estate lease termination and other associated costs       $ 14,000
Maximum | Spinoff | December 2019 Restructuring Plan        
Restructuring Cost and Reserve [Line Items]        
Reorganization, number of jobs affected | employees   160    
Restructuring and related cost, exiting period   18 months    
Restructuring charges   $ 22,000    
Severance costs   11,000    
Retention cost   11,000    
Payments for restructuring   $ 19,000    
Maximum | Spinoff | December 2019 Restructuring Plan | SunPower Technologies        
Restructuring Cost and Reserve [Line Items]        
Reorganization, number of jobs affected | employees   70    
Maximum | Spinoff | December 2019 Restructuring Plan | SunPower Energy Services        
Restructuring Cost and Reserve [Line Items]        
Reorganization, number of jobs affected | employees   90