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ACQUISITIONS AND DISCONTINUED OPERATIONS - Narrative (Details) |  |  |  | 3 Months Ended | 8 Months Ended
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Feb. 10, 2025 USD ($) | Jan. 27, 2025 USD ($) | Feb. 07, 2024 USD ($) | Mar. 29, 2025 USD ($) | Sep. 28, 2024 USD ($) | Mar. 30, 2024 USD ($) | Dec. 31, 2021 project | Sep. 05, 2023 project
Assets acquired: |  |  |  |  |  |  |  |
Business acquisition, net of cash acquired |  |  |  | $ 304,100,000 |  | $ 294,100,000 |  |
Amortization of deferred compensation asset |  |  |  | 4,300,000 |  | 0 |  |
Acquisition-related costs |  |  |  | 6,400,000 |  | 2,600,000 |  |
Net income |  |  |  | 51,200,000 |  | 49,000,000.0 |  |
Intangible amortization |  |  |  | 19,700,000 |  | $ 14,800,000 |  |
Discontinued Operations | DBT Technologies |  |  |  |  |  |  |  |
Assets acquired: |  |  |  |  |  |  |  |
Number of large power projects | project |  |  |  |  |  |  | 2 | 2
Revenues |  |  |  |  |  |  |  |
Assets acquired: |  |  |  |  |  |  |  |
Business acquisition, net of cash acquired | $ 8,200,000 |  |  |  |  |  |  |
Kranze Technology Solutions, Inc |  |  |  |  |  |  |  |
Assets acquired: |  |  |  |  |  |  |  |
Business acquisition, net of cash acquired |  | $ 342,400,000 |  |  |  |  |  |
Deferred compensation assets |  | 46,500,000 |  |  |  |  |  |
Acquisition-related costs |  |  |  | 6,200,000 |  |  |  |
Intangible assets |  | 164,500,000 |  |  |  |  |  |
Gross receivables acquired |  | 7,200,000 |  |  |  |  |  |
Revenues |  |  |  | 8,500,000 |  |  |  |
Net income |  |  |  | (6,400,000) |  |  |  |
Intangible amortization |  |  |  | 3,200,000 |  |  |  |
Inventory acquired and subsequently sold |  |  |  | 300,000 |  |  |  |
Kranze Technology Solutions, Inc | Other Current Assets |  |  |  |  |  |  |  |
Assets acquired: |  |  |  |  |  |  |  |
Deferred compensation assets |  | 26,200,000 |  | 23,500,000 |  |  |  |
Kranze Technology Solutions, Inc | Other Noncurrent Assets |  |  |  |  |  |  |  |
Assets acquired: |  |  |  |  |  |  |  |
Deferred compensation assets |  | $ 20,300,000 |  | 18,700,000 |  |  |  |
Kranze Technology Solutions, Inc | Minimum |  |  |  |  |  |  |  |
Assets acquired: |  |  |  |  |  |  |  |
Employee retention agreement term |  | 2 years |  |  |  |  |  |
Kranze Technology Solutions, Inc | Maximum |  |  |  |  |  |  |  |
Assets acquired: |  |  |  |  |  |  |  |
Employee retention agreement term |  | 8 years |  |  |  |  |  |
Kranze Technology Solutions, Inc | Retention Agreements |  |  |  |  |  |  |  |
Assets acquired: |  |  |  |  |  |  |  |
Amortization of deferred compensation asset |  |  |  | 4,300,000 |  |  |  |
Kranze Technology Solutions, Inc | Technology |  |  |  |  |  |  |  |
Assets acquired: |  |  |  |  |  |  |  |
Intangible assets |  | $ 79,800,000 |  |  |  |  |  |
Amortization period |  | 12 years |  |  |  |  |  |
Kranze Technology Solutions, Inc | Customer relationships and contracts |  |  |  |  |  |  |  |
Assets acquired: |  |  |  |  |  |  |  |
Intangible assets |  | $ 70,700,000 |  |  |  |  |  |
Amortization period |  | 15 years |  |  |  |  |  |
Kranze Technology Solutions, Inc | Trademarks with indefinite lives |  |  |  |  |  |  |  |
Assets acquired: |  |  |  |  |  |  |  |
Intangible assets |  | $ 6,700,000 |  |  |  |  |  |
Amortization period |  | 9 years |  |  |  |  |  |
Kranze Technology Solutions, Inc | Backlog |  |  |  |  |  |  |  |
Assets acquired: |  |  |  |  |  |  |  |
Intangible assets |  | $ 7,300,000 |  |  |  |  |  |
Amortization period |  | 2 years |  |  |  |  |  |
Kranze Technology Solutions, Inc | Corporate Expense |  |  |  |  |  |  |  |
Assets acquired: |  |  |  |  |  |  |  |
Acquisition-related costs |  |  |  | 1,200,000 |  |  |  |
Kranze Technology Solutions, Inc | Acquisition-Related And Other Costs |  |  |  |  |  |  |  |
Assets acquired: |  |  |  |  |  |  |  |
Acquisition-related costs |  |  |  | 5,000,000.0 |  |  |  |
Ingénia Technologies Inc. |  |  |  |  |  |  |  |
Assets acquired: |  |  |  |  |  |  |  |
Business acquisition, net of cash acquired |  |  | $ 292,000,000.0 |  |  |  |  |
Cash acquired |  |  | 1,500,000 |  |  |  |  |
Consideration transferred |  |  |  |  | $ 2,100,000 |  |  |
Acquisition-related costs |  |  |  | 600,000 |  |  |  |
Intangible assets |  |  | 97,900,000 |  |  |  |  |
Gross receivables acquired |  |  | 16,100,000 |  |  |  |  |
Goodwill, expected tax deductible amount |  |  | 0 |  |  |  |  |
Ingénia Technologies Inc. | Technology |  |  |  |  |  |  |  |
Assets acquired: |  |  |  |  |  |  |  |
Intangible assets |  |  | $ 46,700,000 |  |  |  |  |
Amortization period |  |  | 12 years |  |  |  |  |
Ingénia Technologies Inc. | Customer relationships and contracts |  |  |  |  |  |  |  |
Assets acquired: |  |  |  |  |  |  |  |
Intangible assets |  |  | $ 23,500,000 |  |  |  |  |
Amortization period |  |  | 7 years |  |  |  |  |
Ingénia Technologies Inc. | Trademarks with indefinite lives |  |  |  |  |  |  |  |
Assets acquired: |  |  |  |  |  |  |  |
Intangible assets |  |  | $ 13,900,000 |  |  |  |  |
Amortization period |  |  | 8 years |  |  |  |  |
Ingénia Technologies Inc. | Backlog |  |  |  |  |  |  |  |
Assets acquired: |  |  |  |  |  |  |  |
Intangible assets |  |  | $ 13,800,000 |  |  |  |  |
Amortization period |  |  | 1 year |  |  |  |  |
Ingénia Technologies Inc. | Corporate Expense |  |  |  |  |  |  |  |
Assets acquired: |  |  |  |  |  |  |  |
Acquisition-related costs |  |  |  | 200,000 |  |  |  |
Ingénia Technologies Inc. | Acquisition-Related And Other Costs |  |  |  |  |  |  |  |
Assets acquired: |  |  |  |  |  |  |  |
Acquisition-related costs |  |  |  | $ 400,000 |  |  |  |

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