COMMITMENTS, CONTINGENCIES AND CONCENTRATIONS - Reserve for product warranty activity (Details) - USD ($) $ in Thousands |
3 Months Ended | 9 Months Ended | ||
|---|---|---|---|---|
Jul. 04, 2026 |
Jun. 28, 2025 |
Jul. 04, 2026 |
Jun. 28, 2025 |
|
| Movement in Standard and Extended Product Warranty, Increase (Decrease) [Roll Forward] | ||||
| Reserve for product warranty, beginning of period | $ 8,994 | $ 8,524 | $ 7,255 | $ 9,911 |
| Provision for product warranty | 5,496 | 2,064 | 13,350 | 6,476 |
| Utilization of reserve | (3,584) | (2,977) | (9,699) | (8,776) |
| Reserve for product warranty, end of period | $ 10,906 | $ 7,611 | $ 10,906 | $ 7,611 |