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Revenue, Contract Assets and Liabilities and Other Contract Matters - Additional Information (Details) |  | 3 Months Ended | 6 Months Ended |  |
--- | --- | --- | --- | --- | ---
Jul. 01, 2023 USD ($) | Jun. 30, 2023 USD ($) | Jun. 30, 2022 USD ($) | Jun. 30, 2023 USD ($) Vechicle | Jun. 30, 2022 USD ($) | Jan. 01, 2023 USD ($) | Dec. 31, 2022 USD ($)
Long Term Contracts Or Programs Disclosure [Line Items] |  |  |  |  |  |  |
Recognized income associated with revisions to allowance for doubtful accounts |  | $ 200,000 |  | $ 200,000 |  |  |
Allowance for doubtful accounts and credit losses |  | 400,000 |  | 400,000 |  |  |
Increase to beginning accumulated deficit |  | (15,228,000) |  | (15,228,000) |  |  | $ (16,339,000)
ASU 2016-13 |  |  |  |  |  |  |
Long Term Contracts Or Programs Disclosure [Line Items] |  |  |  |  |  |  |
Increase to beginning accumulated deficit |  |  |  |  |  | $ 600,000 |
Minimum |  |  |  |  |  |  |
Long Term Contracts Or Programs Disclosure [Line Items] |  |  |  |  |  |  |
Future repair costs associated with insurance payments received for buildings |  |  |  | 500,000 |  |  |
Maximum |  |  |  |  |  |  |
Long Term Contracts Or Programs Disclosure [Line Items] |  |  |  |  |  |  |
Future repair costs associated with insurance payments received for buildings |  |  |  | $ 1,000,000.0 |  |  |
Hurricane Ida |  |  |  |  |  |  |
Long Term Contracts Or Programs Disclosure [Line Items] |  |  |  |  |  |  |
Date of landfall |  |  |  | Aug. 29, 2021 |  |  |
Impact of Hurricane Ida, description |  |  |  | On August 29, 2021, Hurricane Ida made landfall near Houma, Louisiana as a high-end Category 4 hurricane, with high winds and heavy rains causing damage to buildings and equipment at our Houma Facilities and resulting in significant debris throughout the facility. |  |  |
Insurance payments received |  |  |  | $ 700,000 | $ 7,000,000.0 |  |
Gain on interruptions insurance recovery |  |  |  | 200,000 |  |  |
Gain on insurance recovery |  |  | $ 3,400,000 |  | 3,100,000 |  |
Insurance receivables |  | $ 1,300,000 |  | $ 1,300,000 |  |  |
Forty-Vehicle Ferry |  |  |  |  |  |  |
Long Term Contracts Or Programs Disclosure [Line Items] |  |  |  |  |  |  |
Number of vehicle ferry projects with rework and construction challenges. | Vechicle |  |  |  | 2 |  |  |
Projects, percent complete (percentage) |  | 95.00% |  | 95.00% |  |  |
Reserve for loss |  | $ 500,000 |  | $ 500,000 |  |  |
Change in estimated margins |  | 200,000 |  | 200,000 |  |  |
Seventy-Vehicle Ferry |  |  |  |  |  |  |
Long Term Contracts Or Programs Disclosure [Line Items] |  |  |  |  |  |  |
Reserve for loss |  | 100,000 |  | 100,000 |  |  |
Change in estimated margins |  | 600,000 |  | 600,000 |  |  |
Seventy-Vehicle Ferry | Minimum |  |  |  |  |  |  |
Long Term Contracts Or Programs Disclosure [Line Items] |  |  |  |  |  |  |
Incremental forecast costs |  | 1,500,000 |  |  |  |  |
Seventy-Vehicle Ferry | Maximum |  |  |  |  |  |  |
Long Term Contracts Or Programs Disclosure [Line Items] |  |  |  |  |  |  |
Incremental forecast costs |  | 2,000,000.0 |  |  |  |  |
Remaining Forty-Vehicle Ferry | Hurricane Ida |  |  |  |  |  |  |
Long Term Contracts Or Programs Disclosure [Line Items] |  |  |  |  |  |  |
Total charges related to deductibles |  | 300,000 | $ 200,000 | 300,000 | $ 200,000 |  |
Shipyard |  |  |  |  |  |  |
Long Term Contracts Or Programs Disclosure [Line Items] |  |  |  |  |  |  |
Reduction of estimated contract price for liquidated damages, amount |  | 1,700,000 |  | 1,700,000 |  |  | $ 1,400,000
Change in estimated margins |  | 800,000 |  | 800,000 |  |  |
Fabrication | Offshore Jackets Project |  |  |  |  |  |  |
Long Term Contracts Or Programs Disclosure [Line Items] |  |  |  |  |  |  |
Accounts receivable |  | $ 11,300,000 |  | $ 11,300,000 |  |  |
Fabrication | Offshore Jackets Project | Subsequent Event |  |  |  |  |  |  |
Long Term Contracts Or Programs Disclosure [Line Items] |  |  |  |  |  |  |
Payments received from accounts receivable | $ 1,000,000.0 |  |  |  |  |  |

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