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Schedule II - Valuation and Qualifying Accounts | 12 Months Ended
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Dec. 31, 2025
SEC Schedule, 12-09, Valuation and Qualifying Accounts [Abstract] |
Schedule II - Valuation and Qualifying Accounts | SCHEDULE II – VALUATION AND QUALIFYING ACCOUNTS (in millions)
|  |  | Additions |  |  |  |
| Balance at Beginning of Period |  | Charges to Cost and Expense |  | Other Additions |  | (Deductions) |  | Balance at End of Period
Year ended December 31, 2025 |  |  |  |  |  |  |  |  |
Allowance for credit losses | $ | 19.1 |  | $ | 2.4 |  | (a) | $ | — |  |  | $ | (3.6) |  | (b) | $ | 17.9 |
Allowance for unbilled receivables and project close-out liabilities | 64.4 |  | 8.5 | (a) | — |  | (32.7) |  | (b) | 40.2 |
Valuation allowance for deferred tax assets | 64.7 |  | 5.2 | (c) | — |  | (8.9) |  | (d) | 61.0 |
Total | $ | 148.2 |  | $ | 16.1 |  | $ | — |  | $ | (45.2) |  |  | $ | 119.1 |
Year ended December 31, 2024 |  |  |  |  |  |  |  |  |
Allowance for credit losses | $ | 15.1 |  | $ | 9.9 | (a) | $ | — |  | $ | (5.9) |  | (b) | $ | 19.1 |
Allowance for unbilled receivables and project close-out liabilities | 83.0 |  | 8.6 | (a) | — |  | (27.2) |  | (b) | 64.4 |
Valuation allowance for deferred tax assets | 60.4 |  | 9.6 | (c) | — |  | (5.3) |  | (d) | 64.7 |
Total | $ | 158.5 |  | $ | 28.1 |  | $ | — |  | $ | (38.4) |  |  | $ | 148.2 |
Year ended December 31, 2023 |  |  |  |  |  |  |  |  |
Allowance for credit losses | $ | 8.4 |  | $ | 12.7 | (a) | $ | — |  | $ | (6.0) |  | (b) | $ | 15.1 |
Allowance for unbilled receivables and project close-out liabilities | 117.0 |  | 34.0 | (a) | — |  | (68.0) |  | (b) | 83.0 |
Valuation allowance for deferred tax assets | 87.6 |  | 2.8 | (c) | — |  | (30.0) |  | (d) | 60.4 |
Total | $ | 213.0 |  | $ | 49.5 |  | $ | — |  | $ | (104.0) |  |  | $ | 158.5 |
(a) Provisions for receivables and project close-out liabilities. (b) Write-offs of and reversals for receivables and project close-out liabilities. (c) Additions related to federal, foreign and state attributes. (d) Deductions related to federal, foreign and state attributes.

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- Definition The entire disclosure for valuation and qualifying accounts and reserves. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name Regulation S-X (SX) -Number 210 -Section 12 -Subsection 09 -Publisher SEC Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 235 -SubTopic 10 -Name Accounting Standards Codification -Section S50 -Paragraph 5 -Publisher FASB -URI https://asc.fasb.org/1943274/2147480738/235-10-S50-5 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Topic 235 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 4 -Subparagraph (SX 210.12-09) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480678/235-10-S99-4 + Details
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- References No definition available. + Details
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