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Accounts Receivable, Net - Accounts Receivable, net (Details) - USD ($) | Jan. 01, 2023 | Mar. 31, 2024 | Dec. 31, 2023 | Jan. 01, 2022
--- | --- | --- | --- | ---
Receivables [Abstract] |  |  |  |
Contracts in progress |  | $ 262,700,000 | $ 271,700,000 |
Unbilled retentions |  | 100,000 | 0 |
Trade receivables |  | 2,000,000.0 | 1,900,000 |
Other receivables |  | 4,600,000 | 5,200,000 |
Allowance for expected credit losses |  | (100,000) | (400,000) |
Total | $ 250,400,000 | $ 269,300,000 | $ 278,400,000 | $ 254,900,000
Change in allowance for expected credit losses upon adoption | $ 0 |  |  |

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