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Summary of Significant Accounting Policies - Additional Information (Details) | 12 Months Ended
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Dec. 31, 2024 USD ($) | Dec. 31, 2024 USD ($) | Dec. 31, 2024 USD ($) Segment | Dec. 31, 2024 USD ($) | Dec. 31, 2024 USD ($) DefinedBenefitScheme | Dec. 31, 2023 USD ($) | Dec. 31, 2022 USD ($)
Accounting Policies [Line Items] |  |  |  |  |  |  |
Number of operating segments | Segment |  |  | 2 |  |  |  |
Number of reportable segments |  |  | 2 |  | 2 |  |
Segment Reporting, CODM, Individual Title and Position or Group Name [Extensible Enumeration] | srt:ChiefExecutiveOfficerMember |  |  |  |  |  |
Fixed price and time and material contracts, payment terms | Payment terms are typically within 30 to 120 days of delivery. |  |  |  |  |  |
Impairment of long-lived assets |  | $ 0 |  |  |  | $ 0 | $ 5,834,000
Impairment on goodwill |  | 0 |  |  |  | 0 | 0
Percentage of amortization of actuarial gains and losses determined by greater of market value of assets or the accumulated postretirement benefit obligation |  |  |  | 10.00% |  |  |
Cost of Revenues |  |  |  |  |  |  |
Accounting Policies [Line Items] |  |  |  |  |  |  |
Rental engine depreciation |  | 1,800,000 |  |  |  | 2,500,000 | 2,000,000
Impairment of long-lived assets |  |  |  |  |  |  | $ 5,800,000
Variable Interest Entity, Primary Beneficiary |  |  |  |  |  |  |
Accounting Policies [Line Items] |  |  |  |  |  |  |
Restricted cash equivalents | $ 18,300,000 | $ 18,300,000 | $ 18,300,000 | $ 18,300,000 | $ 18,300,000 | $ 57,600,000 |

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- Definition Percentage of amortization of actuarial gains and losses determined by greater of market value of assets or the accumulated postretirement benefit obligation. + References No definition available. + Details
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- Definition Amount of expense for allocation of cost of tangible asset over its useful life directly used in production of good and rendering of service. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 220 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03(2)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147483621/220-10-S99-2 Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 360 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482099/360-10-50-1 + Details
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- Definition Number of operating segments. An operating segment is a component of an enterprise: (a) that engages in business activities from which it may earn revenues and incur expenses (including revenues and expenses relating to transactions with other components of the same enterprise), (b) whose operating results are regularly reviewed by the enterprise's chief operating decision maker to make decisions about resources to be allocated to the segment and assess its performance, and (c) for which discrete financial information is available. An operating segment may engage in business activities for which it has yet to earn revenues, for example, start-up operations may be operating segments before earning revenues. + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Topic 280 -SubTopic 10 -Name Accounting Standards Codification -Section 55 -Paragraph 49 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482785/280-10-55-49 Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 280 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 18 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482810/280-10-50-18 + Details
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- Definition Amount of cash and cash equivalents restricted as to withdrawal or usage. Cash includes, but is not limited to, currency on hand, demand deposits with banks or financial institutions, and other accounts with general characteristics of demand deposits. Cash equivalents include, but are not limited to, short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 210 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(1)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480566/210-10-S99-1 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 944 -SubTopic 210 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03(a)(2)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147478777/944-210-S99-1 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Topic 230 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 8 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482913/230-10-50-8 Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 942 -SubTopic 210 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03(1)(a)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147478546/942-210-S99-1 Reference 5: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 4 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482740/230-10-45-4 + Details
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