Summary of Significant Accounting Policies	12 Months Ended
Oct. 03, 2025
Accounting Policies [Abstract]
Summary of Significant Accounting Policies	Summary of Significant Accounting Policies Reporting Periods Amentum’s fiscal year ends on the Friday nearest the end of September. Fiscal year 2025 ended on October 3, 2025 and included 53 weeks, with the 53rd week falling in the fourth fiscal quarter. Fiscal year 2024 and fiscal year 2023 ended on September 27, 2024 and September 29, 2023, respectively, and both included 52 weeks. Principles of Consolidation and Basis of Presentation The accompanying consolidated financial statements have been prepared in accordance with GAAP. The consolidated balance sheets as of October 3, 2025 and September 27, 2024 are for Amentum Holdings, Inc. and include CMS, which was acquired by the Company on September 27, 2024. The consolidated statement of operations and statement of cash flows for the year ended October 3, 2025 are for Amentum Holdings, Inc. and include CMS activity. The consolidated statement of operations and statement of cash flows for the years ended September 27, 2024 and September 29, 2023 do not include CMS activity due to the Transaction closing on September 27, 2024. The consolidated financial statements include the accounts of the Company's wholly-owned subsidiaries. All intercompany transactions and balances have been eliminated in consolidation. The Company has investments in joint ventures that are variable interest entities (“VIEs”). The VIEs are accounted for in accordance with Financial Accounting Standards Board (“FASB”) Accounting Standards Codification (“ASC”) 810, Consolidation. In cases where the Company has (i) the power to direct the activities of the VIE that most significantly impact its economic performance and (ii) the obligation to absorb losses of the VIE that could potentially be significant or the right to receive benefits from the entity that could potentially be significant to the VIE, the Company consolidates the entity. When the Company consolidates an entity that is not wholly-owned, the Company reports the minority interests in the entity as non-controlling interests in the equity section of the consolidated balance sheets. The Company has included the non-controlling interest in earnings of the entities within the consolidated net loss including non-controlling interests and deducted the same amount to derive net loss attributable to common shareholders. Alternatively, in cases where all of the aforementioned criteria are not met, the investment is accounted for under the equity method. Use of Estimates The preparation of financial statements in conformity with GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities, the disclosure of contingent assets and liabilities, and the reported amount of revenues and expenses. The most significant estimates relate to estimating contract revenues and costs at completion, fair value measurements, fair value of goodwill and intangible assets, valuation allowances, and reserves for contract-related matters and contingencies. Due to the size and nature of many of our contracts, the estimation of total revenues and cost at completion is subject to a wide range of variables. Actual results may differ from these estimates. Revenue Recognition The Company generates revenue from service arrangements primarily with the U.S. government, including subcontracts with other contractors performing work for the U.S. government. The Company also serves state, local and foreign governments and commercial customers. Our services are generally performed under cost-plus-fee, fixed-price, or time-and-materials contracts which typically involve an annual base period of performance followed by renewal option periods that, once exercised, are generally accounted for as separate contracts. We account for a contract when the parties have approved the contract and are committed to perform their respective obligations, the rights of each party and the payment terms are identified, the contract has commercial substance, and collectability is probable. To determine the proper revenue recognition, we assess whether the distinct goods or services to be provided are to be accounted for as a single performance obligation or as multiple performance obligations. The majority of our contracts have a single performance obligation as the promise to transfer the respective goods or services is not separately identifiable from other promises in the contract and is therefore not distinct. We also evaluate whether modifications to existing contracts should be accounted for as part of the original contract or as a separate contract. Contract modifications that do not add distinct goods or services are accounted for through cumulative catch-up adjustments. Contract modifications that add distinct goods or services and increase the contract value by an amount that reflects the standalone selling price are accounted for as separate contracts. The transaction price is the estimated amount of fixed and variable consideration we expect to receive for performance of our contracts. Variable consideration is typically in the form of award or incentive fees or a combination thereof. Variable consideration is generally based upon various objective and subjective criteria, such as meeting performance or cost targets. These estimates are based on historical award experience, anticipated performance and our best judgment based on current facts and circumstances. Management continuously monitors these factors that may affect the quality of its estimates, and material changes in estimates are disclosed accordingly. Variable consideration is included in the estimated transaction price, to the extent that it is probable that a significant reversal of cumulative revenues recognized will not occur, and there is a basis to reasonably estimate the amount of variable consideration. The Company generally recognizes revenues over time throughout the contract performance period as control is transferred continuously to our customers as work progresses. We measure our progress towards completion using an input measure of total costs incurred divided by total costs expected to be incurred. Revenues on cost-plus-fee contracts are recorded as contract allowable costs are incurred and fees are earned. Revenues are recognized over time using costs incurred to date relative to total estimated costs at completion to measure progress toward satisfying our performance obligations. Revenues on fixed-price contracts are recorded as work is performed over the period of performance. Revenues are recognized over time using costs incurred to date relative to total estimated costs at completion to measure progress toward satisfying our performance obligations. Incurred cost represents work performed, which corresponds with the transfer of control to the customer. For such contracts, we estimate total costs at the inception of the contract based on our assumptions of the cost elements required to complete the associated tasks of the contract and assess the impact of the risks on our estimates of total costs to complete the contract. Our cost estimates are based on assumptions that include our employee labor costs, the cost of materials, and the performance of our subcontractors. These cost estimates are subject to change as we perform under the contract and as a result, the timing of revenues and amount of profit on a contract may change as there are changes in estimated costs to complete the contract. Such adjustments are recognized on a cumulative catch-up basis in the period we identify the changes. If total expected costs exceed total estimated contract revenues, a provision for the entire expected loss on the contract is recorded in the period in which the loss is identified. Total estimated losses are inclusive of any unexercised options that are probable of award, only if they increase the amount of the loss. Revenues for time-and-materials contracts are recorded based on the amount for which we have the right to invoice our customers, because the amount directly reflects the value of our work performed for the customer. Revenues are recorded on the basis of contract allowable labor hours worked multiplied by the contract defined billing rates, plus the direct costs and indirect cost burdens associated with materials and subcontract work used in performance on the contract. Generally, profits on time-and-materials contracts result from the difference between the cost of services performed and the contractually defined billing rates for these services. Changes in Estimates on Contracts The Company recognizes revenues on performance obligations using a cost-to-cost input method based on the ratio of costs incurred to date to total estimated costs at completion. Changes in estimates of revenues and costs of revenues related to performance obligations satisfied over time are recognized in the period in which the changes are made for the inception-to-date effect of the changes. The Company uses professional judgment when assessing risks, estimating contract revenues and costs, estimating variable consideration, and making assumptions for schedule and technical issues. The Company periodically reassesses its assumptions and estimates as needed. When estimates of total costs to be incurred on a contract exceed total revenues, a provision for the entire loss on the contract is recorded in the period in which the loss is determined. Total estimated losses are inclusive of any unexercised contract options that are probable of award. Cost of Revenues Cost of revenues includes all direct contract costs such as labor, materials, and subcontractor costs, allocations of indirect costs, and depreciation expense related to property and equipment directly attributable to contracts. Selling, General, and Administrative Expenses Selling, general, and administrative expenses include indirect costs that are allowable and allocable to contracts under federal procurement standards. Selling, general, and administrative expenses also include expenses that are unallowable under applicable procurement standards and are not allocable to contracts for billing purposes. Such unallowable expenses do not directly generate revenues but are necessary for business operations. Cash and Cash Equivalents The Company considers cash on deposit and all highly liquid investments with original maturities of three months or fewer at the date of purchase to be cash and cash equivalents. Accounts Receivable Accounts receivable include billed and billable receivables, and unbilled receivables. Billed and billable receivables represent amounts in which the right to consideration is unconditional other than the passage of time. The Company records its billed and billable receivables net of an allowance for expected credit losses. Upon determination that a specific receivable is uncollectible, the receivable is written off against the allowance for expected credit losses. Contract Assets Contract assets represent unbilled receivables in which our right to consideration is conditional upon factors other than the passage of time. Contract assets exclude billed and billable receivables. Contract assets consist of costs and fees that are billable on contract completion or billable upon other specified events, such as the completion of a milestone, retention of fees until contract completion, or resolution of a formal claim. Accounting for Sales of Accounts Receivable The Company considers accounts receivable transfers under its Master Accounts Receivable Purchase Agreement (“MARPA”) as sales under ASC 860, Transfers and Servicing, and derecognizes the sold accounts receivable from its balance sheet. The fair value of the sold accounts receivable approximated their book value due to their short-term nature. Contract Liabilities Contract liabilities represent advanced payments received from a customer and billings in excess of revenues recognized as of the balance sheet date. These amounts are subsequently recognized into revenues as the performance obligation is satisfied. Property and Equipment Property and equipment are recorded at cost and are depreciated over their estimated useful lives using the straight-line method. We review the carrying amounts of long-lived assets for impairment whenever there is evidence that events or changes in circumstances indicate that the carrying value may not be recoverable and the carrying amount of the asset exceeds its estimated fair value. Leases The Company enters into contractual arrangements primarily for the use of real estate facilities, information technology equipment, vehicles, and certain other equipment. These arrangements contain a lease when the Company controls the underlying asset and has the right to obtain substantially all of the economic benefits or outputs from the asset. We have short-term leases, operating leases, and finance leases. The Company accounts for leases in accordance with principles contained in ASC 842, Leases. The Company categorizes leases with contractual terms longer than twelve months as either operating or finance leases. Finance leases are generally those leases that allow us to substantially utilize or pay for the entire asset over its estimated life. Assets acquired under finance leases are recorded in property and equipment, net. Finance lease assets are amortized within cost of revenues on a straight-line basis over the shorter of the estimated useful lives of the assets or, in the instance where title does not transfer at the end of the lease term, the lease term. The interest component of a finance lease is included in interest expense and other, net and recognized using the effective interest method over the lease term. The Company records a right-of-use asset and lease liability as of the lease commencement date equal to the present value of the remaining lease payments for its operating and finance leases. Most of our leases do not provide an implicit rate that can be readily determined. Therefore, we use a discount rate based on the Company’s incremental borrowing rate, which is determined using our credit rating and information available as of the commencement date. The right-of-use asset is then adjusted for initial direct costs and certain lease incentives included in the contractual arrangement. The Company has elected the practical expedient to apply the lease recognition guidance for short-term leases defined as twelve months or fewer. Our operating lease arrangements may contain options to extend the lease term or for early termination. We account for these options when it is reasonably certain we will exercise them. Right-of-use assets are evaluated for impairment in a manner consistent with the treatment of other long-lived assets. Operating lease expense is recognized on a straight-line basis over the lease term and is recorded within cost of revenues or selling, general, and administrative expenses on the consolidated statements of operations. Business Combinations The Company records all tangible and intangible assets acquired and liabilities assumed in a business combination at fair value as of the acquisition date, with any excess purchase consideration recorded as goodwill. Determining the fair value of acquired intangible assets requires management to make significant judgments about expected future cash flows, weighted-average cost of capital, discount rates, useful lives of assets and expected long-term growth rates. During the measurement period, not to exceed one year from the acquisition date, the Company may adjust provisional amounts recorded to reflect new information subsequently obtained regarding facts and circumstances that existed as of the acquisition date. Intangible Assets The Company primarily amortizes intangible assets using an accelerated method which best approximates the proportion of the future cash flows estimated to be generated in each period over the estimated useful life of the applicable asset and evaluated on an annual basis to ensure continued appropriateness unless their estimated useful lives are determined to be indefinite or the estimated cash flows indicate another pattern of amortization should be used. Goodwill Goodwill represents the excess of amounts paid over the estimated fair value of net assets acquired from an acquisition. The Company evaluates goodwill for impairment annually on the first day of the fourth quarter of the fiscal year or whenever events or circumstances indicate that the carrying value may not be recoverable. The evaluation includes a qualitative or quantitative assessment that compares the estimated fair value of the relevant reporting unit to its respective carrying value, including goodwill, and utilizes both market and income approaches, which are Level 2 and Level 3 inputs, respectively. The market approach utilizes observable Level 2 inputs as it considered the inputs of other comparable companies. The income approach utilizes unobservable inputs and management judgment which are Level 3 fair value measurements. The analysis utilizes judgments and assumptions about expected growth rates, terminal earnings before interest, taxes, depreciation and amortization (“EBITDA”) margins, discount rates based on weighted-average cost of capital, assumptions regarding future capital expenditures and observable inputs of other comparable companies. The fair value of each reporting unit is compared to the carrying amount of the reporting unit and if the carrying amount of the reporting unit exceeds the fair value, then an impairment loss is recognized for the difference. Commitments and Contingencies Accruals for commitments and loss contingencies arising from claims, assessments, litigation, fines and penalties and other sources are recorded when it is probable that a liability has been incurred and the amount of the assessment and/or remediation can be reasonably estimated. Defined Benefit Pension Plans Accounting and reporting for the Company’s defined benefit pension plans require the use of assumptions, including but not limited to, a discount rate and an expected return on assets. We base the discount rate on a yield curve developed from corporate bonds rated AA or better with maturities consistent with our projected defined benefit plan cash flows. We evaluate the discount rate and related assumptions at least annually based on reviews of current plan information and consultation with the Company's independent actuary and the plans’ investment advisor. If these assumptions differ materially from actual results, the Company’s obligations under the defined benefit pension plans could also differ materially, potentially requiring the Company to record an additional liability. The Company’s defined benefit pension plan liabilities are developed from actuarial valuations, which are performed each year. Income Taxes The Company provides for income taxes in accordance with principles contained in ASC 740, Income Taxes. Under these principles, income taxes are accounted for under the asset and liability method. Deferred tax assets and liabilities are recognized for the future tax consequences attributable to differences between the financial statements carrying amounts of existing assets and liabilities and their respective tax basis and operating loss and tax credit carryforwards. Deferred tax assets and liabilities are measured using enacted tax rates expected to apply to taxable income in the years in which those temporary differences are expected to be recovered or settled. The effect on deferred tax assets and liabilities of a change in tax rates is recognized in income in the period that includes the enactment date. Any interest or penalties incurred in connection with income taxes are recorded as part of the provision for income taxes for financial reporting purposes. Valuation allowances are established, when necessary, to reduce deferred tax assets to the amount expected to be realized. The Company also evaluates any uncertain tax positions and recognizes a liability for the tax benefit associated with an uncertain tax position if it is more likely than not that the tax position will not be sustained on examination by the taxing authorities upon consideration of the technical merits of the position. The tax benefits recognized in the financial statements from such positions are measured based on the largest benefit that has a greater than 50% likelihood of being realized upon ultimate settlement. Any change in judgment related to the expected ultimate resolution of uncertain tax positions is recognized in the period in which such change occurs. The Company recognizes interest and penalties related to uncertain tax positions within benefit (provision) for income taxes in the consolidated statement of operations. Interest Rate Swap Agreements We enter into interest rate swap agreements in order to hedge the variability of expected future cash interest payments. We designate our derivative instruments as cash flow hedges if they meet the criteria specified in ASC 815, Derivatives and Hedging. Changes in the fair value of derivatives designated and qualifying as cash flow hedges are deferred in accumulated other comprehensive income and are recognized into earnings as the hedged transactions affect earnings. Changes in the fair value of derivatives not designated and qualifying as cash flow hedges are immediately recognized in earnings and classified as interest expense. Fair Value of Financial Instruments The carrying amounts of cash and cash equivalents, accounts receivable, accounts payable, and amounts included in other current assets and current liabilities that meet the definition of a financial instrument approximate fair value because of the short-term nature of these amounts. The fair value of our debt approximates its carrying value. The fair value of our debt was estimated using Level 2 inputs based on our recently priced debt. Earnings (Loss) Per Share Basic earnings (loss) per share is computed by dividing net income (loss) attributable to common shareholders by the weighted-average number of common shares outstanding for the period. Due to the loss experienced by the Company in fiscal year 2024, the computation of diluted loss per share does not assume the impact of restricted stock units that would have an antidilutive effect on loss per share. Information about the weighted-average number of basic and diluted shares is presented in “Note 20 — Earnings (Loss) Per Share”. Concentrations of Credit Risk Financial instruments that potentially subject the Company to credit risk include receivables and cash equivalents. Receivables credit risk is also limited due to the credit worthiness of the U.S. Government. Management believes the credit risk associated with the Company’s cash equivalents is limited due to the credit worthiness of the obligors of the investments underlying the cash equivalents. In addition, although the Company maintains cash balances at financial institutions that exceed federally insured limits, these balances are placed with high quality financial institutions. Approximately 81%, 90% and 91% of the Company’s revenues were derived through direct contracts with agencies of the U.S. Government for the years ended October 3, 2025, September 27, 2024 and September 29, 2023, respectively. Foreign Currency Translation The Company’s functional currency is generally the United States dollar except for foreign operations where the functional currency is generally the local currency. Results of operations for foreign entities are translated to U.S. dollars using the average exchange rates during the period. Assets and liabilities for foreign entities are translated using the exchange rates in effect as of the date of the balance sheet. Resulting translation adjustments are recorded as a foreign currency translation adjustment into other accumulated comprehensive income in shareholders’ equity. Comprehensive Income (Loss) Comprehensive income (loss) is the change in equity of a business enterprise during a period from transactions and other events and circumstances from nonowner sources. Other comprehensive income (loss) refers to revenues, expenses, and gains and losses that under GAAP are included in comprehensive income (loss), but excluded from the determination of net income (loss) including non-controlling interests. The elements within other comprehensive income (loss) consist of foreign currency translation adjustments, differences between actual amounts and estimates based on actuarial assumptions and the effect of changes in actuarial assumptions made under the Company’s pension plans and the changes in the fair value of interest rate swap agreements. The Company accounts for the residual income tax effects in comprehensive income (loss) using the portfolio method and will release the residual tax effect when the entire portfolio of the applicable balance is terminated.

Amentum’s fiscal year ends on the Friday nearest the end of September. Fiscal year 2025 ended on October 3, 2025 and included 53 weeks, with the 53rd week falling in the fourth fiscal quarter. Fiscal year 2024 and fiscal year 2023 ended on September 27, 2024 and September 29, 2023, respectively, and both included 52 weeks.

The consolidated statement of operations and statement of cash flows for the year ended October 3, 2025 are for Amentum Holdings, Inc. and include CMS activity. The consolidated statement of operations and statement of cash flows for the years ended September 27, 2024 and September 29, 2023 do not include CMS activity due to the Transaction closing on September 27, 2024.

The consolidated financial statements include the accounts of the Company's wholly-owned subsidiaries. All intercompany transactions and balances have been eliminated in consolidation. The Company has investments in joint ventures that are variable interest entities (“VIEs”). The VIEs are accounted for in accordance with Financial Accounting Standards Board (“FASB”) Accounting Standards Codification (“ASC”) 810, Consolidation. In cases where the Company has (i) the power to direct the activities of the VIE that most significantly impact its economic performance and (ii) the obligation to absorb losses of the VIE that could potentially be significant or the right to receive benefits from the entity that could potentially be significant to the VIE, the Company consolidates the entity. When the Company consolidates an entity that is not wholly-owned, the Company reports the minority interests in the entity as non-controlling interests in the equity section of the consolidated balance sheets. The Company has included the non-controlling interest in earnings of the entities within the consolidated net loss including non-controlling interests and deducted the same amount to derive net loss attributable to

The preparation of financial statements in conformity with GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities, the disclosure of contingent assets and liabilities, and the reported amount of revenues and expenses. The most significant estimates relate to estimating contract revenues and costs at completion, fair value measurements, fair value of goodwill and intangible assets, valuation allowances, and reserves for contract-related matters and contingencies. Due to the size and nature of many of our contracts, the estimation of total revenues and cost at completion is subject to a wide range of variables. Actual results may differ from these estimates.

The Company generates revenue from service arrangements primarily with the U.S. government, including subcontracts with other contractors performing work for the U.S. government. The Company also serves state, local and foreign governments and commercial customers. Our services are generally performed under cost-plus-fee, fixed-price, or time-and-materials contracts which typically involve an annual base period of performance followed by renewal option periods that, once exercised, are generally accounted for as separate contracts.

To determine the proper revenue recognition, we assess whether the distinct goods or services to be provided are to be accounted for as a single performance obligation or as multiple performance obligations. The majority of our contracts have a single performance obligation as the promise to transfer the respective goods or services is not separately identifiable from other promises in the contract and is therefore not distinct.

We also evaluate whether modifications to existing contracts should be accounted for as part of the original contract or as a separate contract. Contract modifications that do not add distinct goods or services are accounted for through cumulative catch-up adjustments. Contract modifications that add distinct goods or services and increase the contract value by an amount that reflects the standalone selling price are accounted for as separate contracts.

The transaction price is the estimated amount of fixed and variable consideration we expect to receive for performance of our contracts. Variable consideration is typically in the form of award or incentive fees or a combination thereof. Variable consideration is generally based upon various objective and subjective criteria, such as meeting performance or cost targets. These estimates are based on historical award experience, anticipated performance and our best judgment based on current facts and circumstances. Management continuously monitors these factors that may affect the quality of its estimates, and material changes in estimates are disclosed accordingly. Variable consideration is included in the estimated transaction price, to the extent that it is probable that a significant reversal of cumulative revenues recognized will not occur, and there is a basis to reasonably estimate the amount of variable consideration.

The Company generally recognizes revenues over time throughout the contract performance period as control is transferred continuously to our customers as work progresses. We measure our progress towards completion using an input measure of total costs incurred divided by total costs expected to be incurred.

Revenues on fixed-price contracts are recorded as work is performed over the period of performance. Revenues are recognized over time using costs incurred to date relative to total estimated costs at completion to measure progress toward satisfying our performance obligations. Incurred cost represents work performed, which corresponds with the transfer of control to the customer. For such contracts, we estimate total costs at the inception of the contract based on our assumptions of the cost elements required to complete the associated tasks of the contract and assess the impact of the risks on our estimates of total costs to complete the contract. Our cost estimates are based on assumptions that include our employee labor costs, the cost of materials, and the performance of our subcontractors. These cost estimates are subject to change as we perform under the contract and as a result, the timing of revenues and amount of profit on a contract may change as there are changes in estimated costs to complete the contract. Such adjustments are recognized on a cumulative catch-up basis in the period we identify the changes. If total expected costs exceed total estimated contract revenues, a provision for the entire expected loss on the contract is recorded in the period in which the loss is identified. Total estimated losses are inclusive of any unexercised options that are probable of award, only if they increase the amount of the loss.

Revenues for time-and-materials contracts are recorded based on the amount for which we have the right to invoice our customers, because the amount directly reflects the value of our work performed for the customer. Revenues are recorded on the basis of contract allowable labor hours worked multiplied by the contract defined billing rates, plus the direct costs and indirect cost burdens associated with materials and subcontract work used in performance on the contract. Generally, profits on time-and-materials contracts result from the difference between the cost of services performed and the contractually defined billing rates for these services.

The Company recognizes revenues on performance obligations using a cost-to-cost input method based on the ratio of costs incurred to date to total estimated costs at completion. Changes in estimates of revenues and costs of revenues related to performance obligations satisfied over time are recognized in the period in which the changes are made for the inception-to-date effect of the changes. The Company uses professional judgment when assessing risks, estimating contract revenues and costs, estimating variable consideration, and making assumptions for schedule and technical issues. The Company periodically reassesses its assumptions and estimates as needed. When estimates of total costs to be incurred on a contract exceed total revenues, a provision for the entire loss on the contract is recorded in the period in which the loss is determined. Total estimated losses are inclusive of any unexercised contract options that are probable of award.

Selling, general, and administrative expenses include indirect costs that are allowable and allocable to contracts under federal procurement standards. Selling, general, and administrative expenses also include expenses that are unallowable under applicable procurement standards and are not allocable to contracts for billing purposes. Such unallowable expenses do not directly generate revenues but are necessary for business operations.

Accounts receivable include billed and billable receivables, and unbilled receivables. Billed and billable receivables represent amounts in which the right to consideration is unconditional other than the passage of time. The Company records its billed and billable receivables net of an allowance for expected credit losses. Upon determination that a specific receivable is uncollectible, the receivable is written off against the allowance for expected credit losses.

Contract assets represent unbilled receivables in which our right to consideration is conditional upon factors other than the passage of time. Contract assets exclude billed and billable receivables. Contract assets consist of costs and fees that are billable on contract completion or billable upon other specified events, such as the completion of a milestone, retention of fees until contract completion, or resolution of a formal claim.

The Company considers accounts receivable transfers under its Master Accounts Receivable Purchase Agreement (“MARPA”) as sales under ASC 860, Transfers and Servicing, and derecognizes the sold accounts receivable from its balance sheet. The fair value of the sold accounts receivable approximated their book value due to their short-term nature.

Property and equipment are recorded at cost and are depreciated over their estimated useful lives using the straight-line method. We review the carrying amounts of long-lived assets for impairment whenever there is evidence that events or changes in circumstances indicate that the carrying value may not be recoverable and the carrying amount of the asset exceeds its estimated fair value.

The Company enters into contractual arrangements primarily for the use of real estate facilities, information technology equipment, vehicles, and certain other equipment. These arrangements contain a lease when the Company controls the underlying asset and has the right to obtain substantially all of the economic benefits or outputs from the asset. We have short-term leases, operating leases, and finance leases.

The Company accounts for leases in accordance with principles contained in ASC 842, Leases. The Company categorizes leases with contractual terms longer than twelve months as either operating or finance leases. Finance leases are generally those leases that allow us to substantially utilize or pay for the entire asset over its estimated life. Assets acquired under finance leases are recorded in property and equipment, net. Finance lease assets are amortized within cost of revenues on a straight-line basis over the shorter of the estimated useful lives of the assets or, in the instance where title does not transfer at the end of the lease term, the lease term. The interest component of a finance lease is included in interest expense and other, net and recognized using the effective interest method over the lease term.

The Company records a right-of-use asset and lease liability as of the lease commencement date equal to the present value of the remaining lease payments for its operating and finance leases. Most of our leases do not provide an implicit rate that can be readily determined. Therefore, we use a discount rate based on the Company’s incremental borrowing rate, which is determined using our credit rating and information available as of the commencement date. The right-of-use asset is then adjusted for initial direct costs and certain lease incentives included in the contractual arrangement.

The Company has elected the practical expedient to apply the lease recognition guidance for short-term leases defined as twelve months or fewer. Our operating lease arrangements may contain options to extend the lease term or for early termination. We account for these options when it is reasonably certain we will exercise them. Right-of-use assets are evaluated for impairment in a manner consistent with the treatment of other long-lived assets. Operating lease expense is recognized on a straight-line basis over the lease term and is recorded within cost of revenues or selling, general, and administrative expenses on the consolidated statements of operations.

The Company records all tangible and intangible assets acquired and liabilities assumed in a business combination at fair value as of the acquisition date, with any excess purchase consideration recorded as goodwill. Determining the fair value of acquired intangible assets requires management to make significant judgments about expected future cash flows, weighted-average cost of capital, discount rates, useful lives of assets and expected long-term growth rates. During the measurement period, not to exceed one year from the acquisition date, the Company may adjust provisional amounts recorded to reflect new information subsequently obtained regarding facts and circumstances that existed as of the acquisition date.

The Company primarily amortizes intangible assets using an accelerated method which best approximates the proportion of the future cash flows estimated to be generated in each period over the estimated useful life of the applicable asset and evaluated on an annual basis to ensure continued appropriateness unless their estimated useful lives are determined to be indefinite or the estimated cash flows indicate another pattern of amortization should be used.

Goodwill represents the excess of amounts paid over the estimated fair value of net assets acquired from an acquisition. The Company evaluates goodwill for impairment annually on the first day of the fourth quarter of the fiscal year or whenever events or circumstances indicate that the carrying value may not be recoverable.

The evaluation includes a qualitative or quantitative assessment that compares the estimated fair value of the relevant reporting unit to its respective carrying value, including goodwill, and utilizes both market and income approaches, which are Level 2 and Level 3 inputs, respectively. The market approach utilizes observable Level 2 inputs as it considered the inputs of other comparable companies. The income approach utilizes unobservable inputs and management judgment which are Level 3 fair value measurements. The analysis utilizes judgments and assumptions about expected growth rates, terminal earnings before interest, taxes, depreciation and amortization (“EBITDA”) margins, discount rates based on weighted-average cost of capital, assumptions regarding future capital expenditures and observable inputs of other comparable companies. The fair value of each reporting unit is compared to the carrying amount of the reporting unit and if the carrying amount of the reporting unit exceeds the fair value, then an impairment loss is recognized for the difference.

Accounting and reporting for the Company’s defined benefit pension plans require the use of assumptions, including but not limited to, a discount rate and an expected return on assets. We base the discount rate on a yield curve developed from corporate bonds rated AA or better with maturities consistent with our projected defined benefit plan cash flows. We evaluate the discount rate and related assumptions at least annually based on reviews of current plan information and consultation with the Company's independent actuary and the plans’ investment advisor. If these assumptions differ materially from actual results, the Company’s obligations under the defined benefit pension plans could also differ materially, potentially requiring the Company to record an additional liability. The Company’s defined benefit pension plan liabilities are developed from actuarial valuations, which are performed each year.

The Company provides for income taxes in accordance with principles contained in ASC 740, Income Taxes. Under these principles, income taxes are accounted for under the asset and liability method. Deferred tax assets and liabilities are recognized for the future tax consequences attributable to differences between the financial statements carrying amounts of existing assets and liabilities and their respective tax basis and operating loss and tax credit carryforwards. Deferred tax assets and liabilities are measured using enacted tax rates expected to apply to taxable income in the years in which those temporary differences are expected to be recovered or settled. The effect on deferred tax assets and liabilities of a change in tax rates is recognized in income in the period that includes the enactment date. Any interest or penalties incurred in connection with income taxes are recorded as part of the provision for income taxes for financial reporting purposes. Valuation allowances are established, when necessary, to reduce deferred tax assets to the amount expected to be realized.

The Company also evaluates any uncertain tax positions and recognizes a liability for the tax benefit associated with an uncertain tax position if it is more likely than not that the tax position will not be sustained on examination by the taxing authorities upon consideration of the technical merits of the position. The tax benefits recognized in the financial statements from such positions are measured based on the largest benefit that has a greater than 50% likelihood of being realized upon ultimate settlement. Any change in judgment related to the expected ultimate resolution of uncertain tax positions is recognized in the period in which such change occurs. The Company recognizes interest and penalties related to uncertain tax positions within benefit (provision) for income taxes in the consolidated statement of operations.

We enter into interest rate swap agreements in order to hedge the variability of expected future cash interest payments. We designate our derivative instruments as cash flow hedges if they meet the criteria specified in ASC 815, Derivatives and Hedging. Changes in the fair value of derivatives designated and qualifying as cash flow hedges are deferred in accumulated other comprehensive income and are recognized into earnings as the hedged transactions affect earnings. Changes in the fair value of derivatives not designated and qualifying as cash flow hedges are immediately recognized in earnings and classified as interest expense.

The carrying amounts of cash and cash equivalents, accounts receivable, accounts payable, and amounts included in other current assets and current liabilities that meet the definition of a financial instrument approximate fair value because of the short-term nature of these amounts. The fair value of our debt approximates its carrying value. The fair value of our debt was estimated using Level 2 inputs based on our recently priced debt.

Basic earnings (loss) per share is computed by dividing net income (loss) attributable to common shareholders by the weighted-average number of common shares outstanding for the period. Due to the loss experienced by the Company in fiscal year 2024, the computation of diluted loss per share does not assume the impact of restricted stock units that would have an antidilutive effect on loss per share. Information about the weighted-average number of basic and diluted shares is presented in “Note 20 — Earnings (Loss) Per Share”.

Financial instruments that potentially subject the Company to credit risk include receivables and cash equivalents. Receivables credit risk is also limited due to the credit worthiness of the U.S. Government. Management believes the credit risk associated with the Company’s cash equivalents is limited due to the credit worthiness of the obligors of the investments underlying the cash equivalents. In addition, although the Company maintains cash balances at financial institutions that exceed federally insured limits, these balances are placed with high quality financial institutions. Approximately 81%, 90% and 91% of the Company’s revenues were derived through direct contracts with agencies of the U.S. Government for the years ended October 3, 2025, September 27, 2024 and September 29, 2023, respectively.

The Company’s functional currency is generally the United States dollar except for foreign operations where the functional currency is generally the local currency. Results of operations for foreign entities are translated to U.S. dollars using the average exchange rates during the period. Assets and liabilities for foreign entities are translated using the exchange rates in effect as of the date of the balance sheet. Resulting translation adjustments are recorded as a foreign currency translation adjustment into other accumulated comprehensive income in shareholders’ equity.

Comprehensive income (loss) is the change in equity of a business enterprise during a period from transactions and other events and circumstances from nonowner sources. Other comprehensive income (loss) refers to revenues, expenses, and gains and losses that under GAAP are included in comprehensive income (loss), but excluded from the determination of net income (loss) including non-controlling interests. The elements within other comprehensive income (loss) consist of foreign currency translation adjustments, differences between actual amounts and estimates based on actuarial assumptions and the effect of changes in actuarial assumptions made under the Company’s pension plans and the changes in the fair value of interest rate swap agreements. The Company accounts for the residual income tax effects in comprehensive income (loss) using the portfolio method and will release the residual tax effect when the entire portfolio of the applicable balance is terminated.