v3.26.1
FAIR VALUE MEASUREMENTS - Narrative (Details) - USD ($)
 3 Months Ended 6 Months Ended
Jun. 30, 2026
Jun. 30, 2025
Jun. 30, 2026
Jun. 30, 2025
Jul. 28, 2026
Jul. 03, 2026
Dec. 31, 2025
Jul. 31, 2023
Sep. 30, 2021
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]                  
Allowance for credit losses during period $ 0   $ 0            
Product warranty, term     25 years            
Change in profit element and risk premium 0 $ 0 $ 3,526,000 $ (781,000)          
Change in discount rate 3,332,000 5,715,000 3,332,000 5,715,000          
Increase in liability as a result of increasing the profit element and risk premium input by 100 basis points     1,400,000            
Decrease in liability as a result of decreasing the profit element and risk premium input by 100 basis points     1,400,000            
Decrease in liability as a result of increasing the discount rate by 100 basis points     12,400,000            
Increase in liability as a result of decreasing the discount rate by 100 basis points     13,900,000            
Variable Interest Entity, Not Primary Beneficiary | Secured Revolving Credit Facility                  
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]                  
Financing receivable, committed amount $ 30,000,000.0   $ 30,000,000.0            
Interest rate 9.00%   9.00%            
Variable Interest Entity, Not Primary Beneficiary | Subsequent Event | Secured Revolving Credit Facility                  
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]                  
Financing receivable, committed amount           $ 50,000,000.0      
Minimum                  
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]                  
Loan receivables, contractual maturities 1 year   1 year            
Maximum                  
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]                  
Loan receivables, contractual maturities 3 years   3 years            
Secured Convertible Promissory Notes 2021                  
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]                  
Investments in debt securities $ 10,200,000   $ 10,200,000       $ 11,000,000.0   $ 13,000,000.0
Secured Convertible Promissory Notes 2023                  
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]                  
Investments in debt securities 14,500,000   14,500,000       $ 14,500,000 $ 15,000,000.0  
Secured Convertible Promissory Notes 2023 | Subsequent Event                  
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]                  
Investments in debt securities         $ 14,500,000        
Level 3 | Warranty obligations for products sold since January 1, 2014                  
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]                  
Change in profit element and risk premium 0 0 3,526,000 (781,000)          
Change in discount rate $ 3,332,000 $ 5,715,000 $ 3,332,000 $ 5,715,000