Quarterly report pursuant to Section 13 or 15(d)

Credit facilities - Term Loan, Additional Information (Details)

v3.10.0.1
Credit facilities - Term Loan, Additional Information (Details) - USD ($)
$ in Thousands
1 Months Ended 3 Months Ended 4 Months Ended 6 Months Ended 9 Months Ended
Aug. 31, 2018
May 10, 2019
Aug. 31, 2019
Feb. 10, 2019
Sep. 30, 2018
Sep. 30, 2017
Dec. 31, 2017
Line of Credit Facility [Line Items]              
Proceeds from borrowings         $ 158,938 $ 277,612  
Debt issuance costs         24,000   $ 27,000
Subsidiaries of SunPower Corporation [Member] | Residential Solar Loan [Member]              
Line of Credit Facility [Line Items]              
Loans receivable         $ 110,000    
Term Loan [Member]              
Line of Credit Facility [Line Items]              
Proceeds from borrowings $ 40,000            
Debt default, interest rate 2.00%            
Debt issuance costs $ 600            
Term Loan [Member] | LIBOR [Member] | Scenario, Forecast [Member]              
Line of Credit Facility [Line Items]              
Basis spread on variable rate (as a percent)   1.75% 2.00% 1.50%