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SEGMENT AND GEOGRAPHICAL INFORMATION - Concentration Risk (Details) | 3 Months Ended | 6 Months Ended
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Jun. 28, 2024 | Jun. 30, 2023 | Jun. 28, 2024 | Jun. 30, 2023
Revenue from Contract with Customer Benchmark | Customer Concentration Risk | Top Ten Customers |  |  |  |
Concentration Risk |  |  |  |
Concentration risk (as a percent) | 52.40% | 51.70% | 49.80% | 51.40%
Revenue from Contract with Customer Benchmark | Customer Concentration Risk | Los Angeles Department of Water and Power |  |  |  |
Concentration Risk |  |  |  |
Concentration risk (as a percent) |  | 10.30% |  | 10.60%
Revenue from Contract with Customer Benchmark | Customer Concentration Risk | Dormitory Authority-State New York |  |  |  |
Concentration Risk |  |  |  |
Concentration risk (as a percent) |  | 10.70% |  |
Revenue from Contract with Customer Benchmark | Geographic Concentration Risk | California |  |  |  |
Concentration Risk |  |  |  |
Concentration risk (as a percent) | 44.30% | 41.40% | 43.90% | 41.90%
Revenue from Contract with Customer Benchmark | Geographic Concentration Risk | New York |  |  |  |
Concentration Risk |  |  |  |
Concentration risk (as a percent) | 23.70% | 26.10% | 25.30% | 25.30%
Revenue from Contract with Customer, Segment Benchmark | Customer Concentration Risk | Los Angeles Department of Water and Power | Energy |  |  |  |
Concentration Risk |  |  |  |
Concentration risk (as a percent) |  | 12.50% |  | 13.00%
Revenue from Contract with Customer, Segment Benchmark | Customer Concentration Risk | Dormitory Authority-State New York | Energy |  |  |  |
Concentration Risk |  |  |  |
Concentration risk (as a percent) |  | 13.00% |  | 11.60%

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