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WARRANTY OBLIGATIONS - Summary of Warranty Activities (Details) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended |
--- | --- | --- | ---
Sep. 30, 2023 | Sep. 30, 2022 | Sep. 30, 2023 | Sep. 30, 2022 | Dec. 31, 2022
Changes in the Company's product warranty liability |  |  |  |  |
Warranty obligations, beginning of period | $ 180,715 | $ 96,551 | $ 131,446 | $ 73,377 |
Accruals for warranties issued during period | 12,477 | 13,370 | 44,992 | 33,591 |
Changes in estimates | (1,983) | 927 | (8,618) | 22,902 |
Settlements | (6,283) | (6,539) | (20,269) | (19,010) |
Increase due to accretion expense | 3,157 | 2,952 | 10,609 | 6,295 |
Change in discount rate | 2,811 | 0 | 34,608 | (9,609) |
Other | (2,028) | (1,381) | (3,902) | (1,666) |
Warranty obligations, end of period | 188,866 | 105,880 | 188,866 | 105,880 |
Less: warranty obligations, current | (40,750) | (32,350) | (40,750) | (32,350) | $ (35,556)
Warranty obligations, non-current | $ 148,116 | $ 73,530 | $ 148,116 | $ 73,530 | $ 95,890

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