v3.24.1.1.u2
SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Product Warranties (Details)
$ / shares in Units, $ in Millions
 12 Months Ended
Jan. 01, 2022
Dec. 31, 2023
USD ($)
$ / shares
Product Warranty Liability [Line Items]    
Extended warranty term 40 years  
Warranty benefit, change in estimate   $ 11.9
Warranty benefit, decrease in product replacement costs   7.9
Decrease in net loss due to change in product warranty estimates   $ 11.9
Decrease in basic net loss per share relating to product warranties (in usd per share) | $ / shares   $ 0.26
Decrease in diluted net loss per share relating to product warranties (in usd per share) | $ / shares   $ 0.26
Minimum    
Product Warranty Liability [Line Items]    
Standard warranty term   5 years
Maximum    
Product Warranty Liability [Line Items]    
Standard warranty term   20 years
Solar power systems    
Product Warranty Liability [Line Items]    
Standard warranty term   25 years
SunPower Settlement Agreement    
Product Warranty Liability [Line Items]    
Warranty benefit, change in estimate   $ 4.0
Percentage of warranty obligation company is liable for   0.50