Mercury Systems (MRCY) 10-Q 5 Nov 24 2025 Q1 Quarterly report Financial data

Cover

Cover - shares	3 Months Ended
	Sep. 27, 2024	Oct. 31, 2024
Document Documentand Entity Information [Abstract]
Document Type	10-Q
Document Quarterly Report	true
Document Period End Date	Sep. 27, 2024
Document Transition Report	false
Entity File Number	001-41194
Entity Registrant Name	MERCURY SYSTEMS, INC.
Entity Incorporation, State or Country Code	MA
Entity Tax Identification Number	04-2741391
Entity Address, Address Line One	50 MINUTEMAN ROAD
Entity Address, City or Town	ANDOVER
Entity Address, State or Province	MA
Entity Address, Postal Zip Code	01810
City Area Code	978
Local Phone Number	256-1300
Title of 12(g) Security	Common Stock, par value $0.01 per share
Trading Symbol	MRCY
Security Exchange Name	NASDAQ
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Large Accelerated Filer
Entity Small Business	false
Entity Emerging Growth Company	false
Entity Shell Company	false
Entity Common Stock, Shares Outstanding		59,632,512
Entity Central Index Key	0001049521
Current Fiscal Year End Date	--06-27
Document Fiscal Year Focus	2025
Document Fiscal Period Focus	Q1
Amendment Flag	false

Consolidated Balance Sheets

Consolidated Balance Sheets - USD ($) $ in Thousands	Sep. 27, 2024	Jun. 28, 2024
Current assets:
Cash and cash equivalents	$ 158,123	$ 180,521
Accounts receivable, net of allowance for credit losses of $1,989 and $2,020 at September 27, 2024 and June 28, 2024, respectively	124,546	111,441
Unbilled receivables and costs in excess of billings, net of allowance for credit losses of $5,311 and $6,340 at September 27, 2024 and June 28, 2024, respectively	298,270	304,029
Inventory	351,088	335,300
Prepaid expenses and other current assets	22,289	22,493
Total current assets	954,316	953,784
Property and equipment, net	105,059	110,353
Goodwill	938,093	938,093
Intangible assets, net	239,306	250,512
Operating lease right-of-use assets, net	58,359	60,860
Deferred tax assets	66,362	58,612
Other non-current assets	7,486	6,691
Total assets	2,368,981	2,378,905
Current liabilities:
Accounts payable	74,741	81,068
Accrued expenses	42,548	42,926
Accrued compensation	18,098	36,398
Income taxes payable	1,115	109
Deferred revenues and customer advances	96,292	73,915
Total current liabilities	232,794	234,416
Income taxes payable	7,713	7,713
Long-term debt	591,500	591,500
Operating lease liabilities	59,798	62,584
Other non-current liabilities	17,335	9,917
Total liabilities	909,140	906,130
Commitments and contingencies (Note L)
Shareholders' equity:
Preferred stock, $0.01 par value; 1,000,000 shares authorized; no shares issued or outstanding	0	0
Common stock, $0.01 par value; 85,000,000 shares authorized; 58,454,728 and 58,093,528 shares issued and outstanding at September 27, 2024 and June 28, 2024, respectively	584	581
Additional paid-in capital	1,253,249	1,242,402
Retained earnings	202,274	219,799
Accumulated other comprehensive income	3,734	9,993
Total shareholders’ equity	1,459,841	1,472,775
Total liabilities and shareholders’ equity	$ 2,368,981	$ 2,378,905

Consolidated Balance Sheets (Pa

Consolidated Balance Sheets (Parenthetical) - USD ($) $ in Thousands	Sep. 27, 2024	Jun. 28, 2024
Statement of Financial Position [Abstract]
Accounts receivable, allowance for doubtful accounts	$ 1,989	$ 2,020
Unbilled receivables and costs in excess of billings, allowance for credit losses	$ 5,311	$ 6,340
Preferred stock, par value (usd per share)	$ 0.01	$ 0.01
Preferred stock, shares authorized (shares)	1,000,000	1,000,000
Preferred stock, shares issued (shares)	0	0
Preferred stock, shares outstanding (shares)	0	0
Common stock, par value (usd per share)	$ 0.01	$ 0.01
Common stock, shares authorized (shares)	85,000,000	85,000,000
Common stock, shares issued (shares)	58,454,728	58,093,528
Common stock, shares outstanding (shares)	58,454,728	58,093,528

Consolidated Statements of Oper

Consolidated Statements of Operations and Comprehensive Loss - USD ($) shares in Thousands, $ in Thousands	3 Months Ended
	Sep. 27, 2024	Sep. 29, 2023
Income Statement [Abstract]
Net revenues	$ 204,431	$ 180,991
Cost of revenues	152,641	130,464
Gross margin	51,790	50,527
Operating expenses:
Selling, general and administrative	33,153	35,794
Research and development	18,383	31,872
Amortization of intangible assets	11,235	12,547
Restructuring and other charges	2,260	9,546
Acquisition costs and other related expenses	177	969
Total operating expenses	65,208	90,728
Loss from operations	(13,418)	(40,201)
Interest income	544	103
Interest expense	(8,906)	(7,863)
Other expense, net	(1,339)	(1,774)
Loss before income tax benefit	(23,119)	(49,735)
Income tax benefit	(5,594)	(13,027)
Net loss	$ (17,525)	$ (36,708)
Basic net loss per share (in dollars per share)	$ (0.30)	$ (0.64)
Diluted net loss per share (in dollars per share)	$ (0.30)	$ (0.64)
Weighted-average shares outstanding:
Basic (in shares)	58,260	57,105
Diluted (in shares)	58,260	57,105
Comprehensive loss:
Net loss	$ (17,525)	$ (36,708)
Change in fair value of derivative instruments, net of tax	(5,885)	1,742
Foreign currency translation adjustments	(320)	420
Pension benefit plan, net of tax	(54)	(56)
Total other comprehensive (loss) income, net of tax	(6,259)	2,106
Total comprehensive loss	$ (23,784)	$ (34,602)

Consolidated Statements of Shar

Consolidated Statements of Shareholders' Equity - USD ($) $ in Thousands	Total	Common Stock	Additional Paid-in Capital	Retained Earnings	Accumulated Other Comprehensive Income
Beginning balance (in shares) at Jun. 30, 2023		56,962,000
Beginning balance at Jun. 30, 2023	$ 1,566,685	$ 570	$ 1,196,847	$ 357,439	$ 11,829
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Issuance of common stock under employee stock incentive plans (in shares)		187,000
Issuance of common stock under employee stock incentive plans	0	$ 2	(2)
Issuance of common stock under defined contribution plan (in shares)		125,000
Issuance of common stock under defined contribution plan	4,638	$ 1	4,637
Stock-based compensation	4,091		4,091
Net loss	(36,708)			(36,708)
Other comprehensive income (loss)	2,106				2,106
Ending balance (in shares) at Sep. 29, 2023		57,274,000
Ending balance at Sep. 29, 2023	$ 1,540,812	$ 573	1,205,573	320,731	13,935
Beginning balance (in shares) at Jun. 28, 2024	58,093,528	58,094,000
Beginning balance at Jun. 28, 2024	$ 1,472,775	$ 581	1,242,402	219,799	9,993
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Issuance of common stock under employee stock incentive plans (in shares)		235,000
Issuance of common stock under employee stock incentive plans	0	$ 2	(2)
Issuance of common stock under defined contribution plan (in shares)		126,000
Issuance of common stock under defined contribution plan	4,512	$ 1	4,511
Stock-based compensation	6,338		6,338
Net loss	(17,525)			(17,525)
Other comprehensive income (loss)	$ (6,259)				(6,259)
Ending balance (in shares) at Sep. 27, 2024	58,454,728	58,455,000
Ending balance at Sep. 27, 2024	$ 1,459,841	$ 584	$ 1,253,249	$ 202,274	$ 3,734

Consolidated Statements of Cash

Consolidated Statements of Cash Flows - USD ($) $ in Thousands	3 Months Ended
	Sep. 27, 2024	Sep. 29, 2023
Cash flows from operating activities:
Net loss	$ (17,525)	$ (36,708)
Adjustments to reconcile net loss to net cash used in operating activities:
Depreciation and amortization expense	21,220	22,692
Stock-based compensation expense	6,092	4,117
Stock-based matching contributions on defined contribution plan	4,432	4,841
Benefit for deferred income taxes	(7,847)	(12,795)
Provision for bad debt	218	36
Other non-cash items	2,707	150
Cash settlement for termination of interest rate swap	0	7,403
Changes in operating assets and liabilities:
Accounts receivable, unbilled receivables, and costs in excess of billings	(6,148)	27,046
Inventory	(13,907)	(27,630)
Prepaid income taxes	(63)	(765)
Prepaid expenses and other current assets	1,982	(1,813)
Other non-current assets	1,840	2,315
Accounts payable, accrued expenses, and accrued compensation	(27,004)	(13,020)
Deferred revenues and customer advances	21,239	1,760
Income taxes payable	978	(13,863)
Other non-current liabilities	(2,874)	(2,834)
Net cash used in operating activities	(14,660)	(39,068)
Cash flows from investing activities:
Purchases of property and equipment	(6,236)	(8,015)
Net cash used in investing activities	(6,236)	(8,015)
Cash flows from financing activities:
Borrowings under credit facilities	0	65,000
Payments of deferred financing and offering costs	(2,249)	0
Net cash (used in) provided by financing activities	(2,249)	65,000
Effect of exchange rate changes on cash and cash equivalents	747	(111)
Net (decrease) increase in cash and cash equivalents	(22,398)	17,806
Cash and cash equivalents at beginning of period	180,521	71,563
Cash and cash equivalents at end of period	158,123	89,369
Cash paid (received) during the period for:
Interest	8,898	6,417
Income taxes (refunded) paid, net	(923)	14,568
Supplemental disclosures—non-cash activities:
Non-cash investing activity: Purchases of property and equipment incurred but not yet paid	$ 3,300	$ 6,192

Description of Business

Description of Business	3 Months Ended
	Sep. 27, 2024
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Description of Business	Description of Business Mercury Systems, Inc. (the Company) is a technology company that delivers mission-critical processing power to the edge - where signals and data are collected - to solve the most pressing aerospace and defense challenges. Mercury’s products and solutions are deployed in more than 300 programs and across 35 countries. The Company is headquartered in Andover, Massachusetts, and has over 20 locations worldwide.

Summary of Significant Accounti

Summary of Significant Accounting Policies	3 Months Ended
	Sep. 27, 2024
Accounting Policies [Abstract]
Summary of Significant Accounting Policies	Summary of Significant Accounting Policies B ASIS OF P RESENTATION The accompanying consolidated financial statements have been prepared by the Company in accordance with Generally Accepted Accounting Principles (“GAAP”) in the United States of America for interim financial information and with the instructions to the Form 10-Q and Article 10 of Regulation S-X. Certain information and footnote disclosures normally included in annual consolidated financial statements have been condensed or omitted pursuant to those rules and regulations; however, in the opinion of management the financial information reflects all adjustments, consisting of adjustments of a normal recurring nature, necessary for fair presentation. These consolidated financial statements should be read in conjunction with the audited consolidated financial statements and related notes for the fiscal year ended June 28, 2024, which are contained in the Company’s Annual Report on Form 10-K filed with the SEC on August 13, 2024. The results for the first quarter ended September 27, 2024 are not necessarily indicative of the results to be expected for the full fiscal year. The consolidated financial statements include the accounts of the Company and its wholly-owned subsidiaries. All intercompany transactions and balances have been eliminated in consolidation. All references to the first quarter of fiscal 2025 are to the quarter ended September 27, 2024. There were 13 weeks during the first quarters ended September 27, 2024 and September 29, 2023, respectively. U SE OF E STIMATES 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 and disclosure of contingent assets and liabilities at the dates of the financial statements and the reported amounts of revenues and expenses during the reporting periods. Actual results could differ from those estimates. F OREIGN C URRENCY Local currencies are the functional currency for the Company’s subsidiaries in Switzerland, the United Kingdom, Spain and Canada. The accounts of foreign subsidiaries are translated using exchange rates in effect at period-end for assets and liabilities and at average exchange rates during the period for results of operations. The related translation adjustments are reported in Accumulated other comprehensive income (“AOCI”) in shareholders’ equity. Gains (losses) resulting from non-U.S. currency transactions are included in Other expense, net in the Consolidated Statements of Operations and Comprehensive Loss and were immaterial for all periods presented. A CCOUNTS R ECEIVABLE Accounts receivable, net, represents amounts that have been billed and are currently due from customers. The Company maintains an allowance for credit losses to provide for the estimated amount of receivables that will not be collected. The Company provides credit to customers in the normal course of business. The Company performs ongoing credit evaluations of its customers’ financial condition and limits the amount of credit extended as necessary. The allowance is based upon an assessment of the customer's credit worthiness, reasonable forecasts about the future, history with the customer, and the age of the receivable balance. The Company typically invoices a customer upon shipment of the product (or completion of a service) for contracts where revenue is recognized at a point in time. For contracts where revenue is recognized over time, the invoicing events are typically based on specified performance obligation deliverables or milestone events, or quantifiable measures of performance. A CCOUNTS R ECEIVABLES F ACTORING On September 27, 2022, the Company executed an uncommitted receivables purchase agreement (“RPA”), pursuant to which the Company may offer to sell certain customer receivables, subject to the terms and conditions of the RPA. The RPA is an uncommitted arrangement such that the Company is not obligated to sell any receivables and the party has no obligation to purchase any receivables from the Company. Pursuant to the RPA, the party may purchase certain of the Company's customer receivables at a discounted rate, subject to a limit that as of any date, the total amount of purchased receivables held by the party, less the amount of all collections received on such receivables, may not exceed $20,000. The RPA has an indefinite term and the agreement remains in effect until it is terminated by either party. Factoring under the RPA Agreement is treated as a true sale of accounts receivable by the Company. The Company has continued involvement in servicing accounts receivable under the RPA, but no retained interests related to the factored accounts receivable. On March 14, 2023, the Company amended the RPA to increase the capacity from $20,000 to $30,600. On June 21, 2023, the Company further amended the RPA to increase the capacity from $30,600 to $60,000. On August 13, 2024, the Company terminated the RPA in conjunction with entering into a new receivables purchase and service agreement. On August 13, 2024, the Company entered into a $60,000 committed receivables purchase and servicing agreement (“RPSA”) with a new party. The RPSA has an initial term of two years. Pursuant to the RPSA, the new party has committed to purchase receivables from a certain number of agreed upon customers, maintaining a balance of purchased receivables at or below $60,000. Under the RPSA, a portion of the factored receivables is paid by the counterparty in cash and classified as a deferred purchase price receivable, which is paid as receivables are collected by the Company. Proceeds for amounts factored by the Company are recorded as an incr ease to cash and a reduction to accounts receivable outstanding in the Consolidated Balance Sheets. Cash Flows attributable to factored receivables are reflected as cash flows from operating activities in the Company's Consolidated Statements of Cash Flow s. Factor ing fees are included as selling, general and administrative expenses in the Company's Consolidated Statements of Operations and Comprehensive Loss. The Company had $43,659 and $362 of factored accounts receivables and factoring fees, respectively, for the first quarter ended September 27, 2024. At September 27, 2024, the Company had $18,835 of factored receivables included in Accounts receivable, net allowance for credit losses on Consolidated Balance Sheet. The Company had $28,826 and $308 of factored accounts receivables and factoring fees, respectively, for the first quarter ended September 29, 2023. D ERIVATIVES The Company records the fair value of its derivative financial instruments in its consolidated financial statements in Other non-current assets, or Other non-current liabilities depending on their net position, regardless of the purpose or intent for holding the derivative contract. Changes in the fair value of the derivative financial instruments are either recognized periodically in earnings or in shareholders’ equity as a component of Other comprehensive income (loss) (“OCI”). Changes in the fair value of cash flow hedges that qualify for hedge accounting treatment are recorded in OCI and reclassified into earnings in the same line item on the Consolidated Statements of Operations and Comprehensive Loss as the impact of the hedged transaction when the underlying contract matures and, for interest rate exposure derivatives, over the term of the corresponding debt instrument. Changes in the fair values of derivatives not qualifying for hedge accounting are reported in earnings as they occur. All derivatives for the Company qualified for hedge accounting as of September 27, 2024. R EVENUE R ECOGNITION The Company recognizes revenue in accordance with ASC 606, Revenue from Contracts with Customers , (“ASC 606”). Revenues are derived from the sales of products that are grouped into one of the following three categories: (i) components; (ii) modules and sub-assemblies; and (iii) integrated solutions. The Company also generates revenues from the performance of services, including systems engineering support, consulting, maintenance and other support, testing and installation. Each promised good or service within a contract is accounted for separately under the guidance of ASC 606 if they are distinct. Promised goods or services not meeting the criteria for being a distinct performance obligation are bundled into a single performance obligation with other goods or services that together meet the criteria for being distinct. The appropriate allocation of the transaction price and recognition of revenue is then determined for the bundled performance obligation. Revenue recognized at a point in time generally relates to contracts that include a combination of components, modules and sub-assemblies, integrated solutions and related system integration or other services. Contracts with distinct performance obligations recognized at a point in time, with or without an allocation of the transaction price, to taled 45% and 42% of revenues for the first quarters ended September 27, 2024 and September 29, 2023, respectively. The Company also engages in contracts for development, production and service activities and recognizes revenue for performance obligations over time. These over time contracts involve the design, development, manufacture, or modification of complex modules and sub-assemblies or integrated solutions and related services. Over time contracts include both fixed-price and cost reimbursable contracts. The Company’s cost reimbursable contracts typically include cost-plus fixed fee and time and material contracts. Accounting for contracts recognized over time requires significant judgment relative to estimating total contract revenues and costs. In particular, this includes assumptions relative to the amount of time to complete the contract and the assessment of the nature and complexity of the work to be performed and the impact of contract amendments which may result in cumulative adjustments. The Company's estimates are based upon the professional knowledge and experience of its engineers, operations, program managers and other personnel, who review each over time contract monthly to assess the contract’s schedule, performance, technical matters and estimated cost at completion. Changes in estimates are applied retrospectively and when adjustments in estimated contract costs are identified, such revisions may result in current period adjustments to earnings applicable to performance in prior periods. The aggregate effects of these favorable and unfavorable changes across the Company’s portfolio of programs can have a significant effect upon its reported Loss from operations, Net loss and Diluted net loss per share in each of the reporting periods. The net impact of changes in estimates had the following impact on the Company’s operating results: First Quarters Ended (In thousands, except per share data) September 27, 2024 September 29, 2023 Loss from operations $ (8,293) $ (16,463) Net loss (1) $ (6,054) $ (12,018) Diluted net loss per share $ (0.10) $ (0.21) Diluted Shares 58,260 57,105 (1) Federal and state statutory rate of 27% Total revenue recognized over time was 55% and 58% of total revenues for the first quarters ended September 27, 2024 and September 29, 2023, respectively. The Company generally does not provid e its customers with rights of product return other than those related to assurance warranty provisions that permit repair or replacement of defective goods generally over a period of 12 to 36 months. The Company accrues for anticipated warranty costs upon product shipment. The Company does not consider activities related to such assurance warranties, if any, to be a separate performance obligation. The Company does offer separately priced extended warranties which generally range from 12 to 36 months that are treated as separate performance obligations. The transaction price allocated to extended warranties is recognized over time in proportion to the costs expected to be incurred in satisfying the obligations under the contract. The Company's contracts generally do not include significant financing components. The Company's over time contracts may include milestone payments, which align the payment schedule with the progress towards completion on the performance obligation. Otherwise, the Company's contracts are predicated on payment upon completion of the performance obligation. On certain contracts, the Company may be entitled to receive an advance payment, which is not considered a significant financing component because most contracts have a duration of approximately two years on average and it is used to facilitate inventory demands at the onset of a contract and to safeguard the Company from the failure of the other party to abide by some or all of their obligations under the contract. All revenues are reported net of government assessed taxes (e.g., sales taxes or value-added taxes). Refer to Note K for disaggregation of revenue for the period. C ONTRACT B ALANCES Contract balances result from the timing of revenue recognized, billings and cash collections resulting in the generation of contract assets and liabilities. Contract assets represent revenue recognized in excess of amounts invoiced to the customer and the right to payment is not subject to the passage of time. Instead, while the Company has an enforceable right to payment as progress is made over performance obligations, billings to customers are generally predicated on (i) completion of defined milestones, (ii) monthly costs incurred or (iii) final delivery of goods or services. Contract assets are presented as Unbilled receivables and costs in excess of billings, net of allowance for credit losses on the Company’s Consolidated Balance Sheets. Contract liabilities consist of deferred product revenue, billings in excess of revenues, deferred service revenue and customer advances. Deferred product revenue represents amounts that have been invoiced to customers, but are not yet recognizable as revenue because the Company has not satisfied its performance obligations under the contract. Billings in excess of revenues represents milestone billing contracts where the billings of the contract exceed recognized revenues. Deferred service revenue primarily represents amounts invoiced to customers for annual maintenance contracts or extended warranty contracts, which are recognized over time in proportion to the costs expected to be incurred in satisfying the obligations under the contract. Customer advances represent deposits received from customers on an order. Contract liabilities are included in deferred revenue as well as Other non-current liabilities on the Company’s Consolidated Balance Sheets. Contract balances are reported in a net position on a contract-by-contract basis. The contract asset balances were $298,270 and $304,029 as of September 27, 2024 and June 28, 2024, res pectively. The contract asset balance decreased due to $117,865 of billings, offset by revenue recognized under over time contracts of $112,106 during the first quarter ended September 27, 2024. The contract liability balances were $96,859 and $74,367 as of September 27, 2024 and June 28, 2024, respectively. The contract liability increased due to a higher volume of milestone billing events as well as timing of revenue recognized across multiple programs. Revenue recognized for the first quarter ended September 27, 2024 that was included in the contract liability balance at June 28, 2024 was $26,411. Revenue recognized for the first quarter ended September 29, 2023 that was included in the contract liability balance at June 30, 2023 was $21,015. R EMAINING P ERFORMANCE O BLIGATIONS The Company includes in its computation of remaining performance obligations customer orders for which it has accepted executed sales orders. The definition of remaining performance obligations excludes contracts with original expected durations of less than one year, as well as those contracts that provide the customer with the right to cancel or terminate the order with no substantial penalty, even if the Company’s historical experience indicates the likelihood of cancellation or termination is remote. As of September 27, 2024, the aggregate amount of the transaction price allocated to remaining performance obligations was $765,775. The Company expects to recognize approximately 54% of its remaining performance obligations as revenue in the next 12 months and the balance thereafter. L ONG -L IVED A SSETS Long-lived assets primarily include property and equipment, intangible assets and right-of-use ("ROU") assets. The Company regularly evaluates its long-lived assets for events and circumstances that indicate a potential impairment in accordance with ASC 360, Property, Plant and Equipment (“ASC 360”). The Company reviews long-lived assets for impairment whenever events or changes in business circumstances indicate that the carrying amount of the assets may not be fully recoverable or that the useful lives of these assets are no longer appropriate. Each impairment test is based on a comparison of the estimated undiscounted cash flows of the asset as compared to the recorded value of the asset. If impairment is indicated, the asset is written down to its estimated fair value. G OODWILL AND I NTANGIBLE A SSETS Goodwill is the amount by which the purchase price of a business acquisition exceeded the fair values of the net identifiable assets on the date of purchase (see Note E). In accordance with the requirements of Intangibles-Goodwill and Other (“ASC 350”), goodwill is not amortized. Goodwill is assessed for impairment at least annually, on a reporting unit basis, or when events and circumstances (“triggering event”) occur indicating that the recorded goodwill may be impaired. Potential triggering events include macroeconomic conditions, industry and market considerations, financial performance and expectations of projected financial performance and cash flows, and changes in the Company's stock price in relation to the carrying value of its reporting units, among other relevant factors. Adverse changes to these events and circumstances could require the Company to perform an interim impairment test. Intangible assets result from the Company’s various business acquisitions and certain licensed technologies, and consist of identifiable intangible assets, including completed technology, licensing agreements, patents, customer relationships, trademarks, backlog and non-compete agreements. Intangible assets are reported at cost, net of accumulated amortization and are either amortized on a straight-line basis over their estimated useful lives of up to 12.5 years or over the period the economic benefits of the intangible asset are consumed. P RODUCT W ARRANTY A CCRUAL The Company’s product sales generally include a 12 to 36 month standard hardware warranty. At time of product shipment, the Company accrues for the estimated cost to repair or replace potentially defective products. Estimated warranty costs are based upon prior actual warranty costs for substantially similar transactions and any specifically identified warranty requirements. Product warranty accrual is included as part of accrued expenses in the accompanying Consolidated Balance Sheets. The following table presents the changes in the Company's product warranty accrual. Total Balance at June 28, 2024 $ 5,721 Accruals for warranties issued during the period 97 Settlements made during the period (998) Balance at September 27, 2024 $ 4,820 W EIGHTED -A VERAGE S HARES Weighted-average shares were calculated as follows: First Quarters Ended September 27, 2024 September 29, 2023 Basic weighted-average shares outstanding 58,260 57,105 Effect of dilutive equity instruments — — Diluted weighted-average shares outstanding 58,260 57,105 Equity instruments to purchase 2,694 and 1,912 shares of common stock were not included in the calculation of diluted net loss per share for the first quarters ended September 27, 2024 and September 29, 2023, respectively, because the equity instruments were anti-dilutive. R ECENTLY I SSUED A CCOUNTING P RONOUNCEMENTS In November 2023, the FASB issued ASU No. 2023-07, Segment Reporting (ASC 280): Improvements to Reportable Segment Disclosures , an amendment of the FASB Accounting Standards Codification. The amendments in this ASU address improvements to reportable segment disclosure requirements, specifically requiring disclosure of significant segment expenses. The amendment also extends certain annual disclosures to interim periods, and clarifies that single reportable segment entities must apply ASC 280 in its entirety, inclusive of this update. This ASU is effective for fiscal years beginning after December 15, 2023, as well as all interim periods within fiscal years beginning after December 15, 2024, with early adoption permitted, including adoption in an interim period. The Company is currently evaluating the effect that this standard will have on its consolidated financial statements and related disclosures. In December 2023, the FASB issued ASU No. 2023-09, Improvement to Income Tax Disclosures , an amendment of the FASB Accounting Standards Codification. The amendments in this ASU enact new income tax disclosure requirements in addition to modifying existing requirements. The amendment requires entities to categorize and provide greater disaggregation of information in the rate reconciliation and income taxes paid disclosures. This ASU is effective for fiscal years beginning after December 15, 2024, with early adoption permitted. The Company is currently evaluating the effect that this standard will have on its consolidated financial statements and related disclosures. R ECENTLY A DOPTED A CCOUNTING P RONOUNCEMENTS

Fair Value of Financial Instrum

Fair Value of Financial Instruments	3 Months Ended
	Sep. 27, 2024
Fair Value Disclosures [Abstract]
Fair Value of Financial Instruments	Fair Value of Financial Instruments The following table summarizes the Companies' financial instruments measured at fair value on a recurring basis as of September 27, 2024: Fair Value Measurements September 27, 2024 Level 1 Level 2 Level 3 Liabilities: Interest rate swap $ 9,628 $ — $ 9,628 $ — Total $ 9,628 $ — $ 9,628 $ — The carrying values of cash and cash equivalents, including money market funds, restricted cash, accounts receivable and payable, contract assets and liabilities and accrued liabilities approximate fair value due to the short-term maturities of these assets and liabilities. The Company determined the carrying value of long-term debt approximated fair value due to variable interest rates charged on the borrowings, which reprice frequently. During the first quarter ended September 29, 2023, the Company entered into an interest rate hedging agreement (the “September 2023 Swap”). The fair value of the September 2023 Swap is estimated using a discounted cash flow analysis based on the contractual terms of the derivative, leveraging observable inputs other than quoted prices, such as interest rates. As of September 27, 2024, the fair value of the September 2023 Swap was a liability of $9,628 and is included within Other non-current liabilities in the Company's Consolidated Balance Sheets. As of June 28, 2024, the fair value of the September 2023 Swap was a liability of $2,436 and was included within Other non-current liabilities in the Company's Consolidated Balance Sheets. The following table summarizes the Companies' financial instruments measured at fair value on a recurring basis as of June 28, 2024: Fair Value Measurements June 28, 2024 Level 1 Level 2 Level 3 Liabilities: Interest rate swap $ 2,436 $ — $ 2,436 $ — Total assets measured at fair value $ 2,436 $ — $ 2,436 $ — The fair value of the September 2023 Swap is estimated using a discounted cash flow analysis based on the contractual terms of the derivative, leveraging observable inputs other than quoted prices, such as interest rates.

Inventory

Inventory	3 Months Ended
	Sep. 27, 2024
Inventory Disclosure [Abstract]
Inventory	Inventory Inventory is stated at the lower of cost (first-in, first-out) or net realizable value, and consists of materials, labor and overhead. On a quarterly basis, the Company uses consistent methodologies to evaluate inventory for net realizable value. Once an item is written down, the value becomes the new inventory cost basis. The Company reduces the value of inventory for excess and obsolete inventory, consisting of on-hand inventory in excess of estimated usage. The excess and obsolete inventory evaluation is based upon assumptions about future demand, historical usage, product mix and possible alternative uses. Inventory was comprised of the following: As of September 27, 2024 June 28, 2024 Raw materials $ 206,986 $ 200,501 Work in process 124,321 118,060 Finished goods 19,781 16,739 Total $ 351,088 $ 335,300

Goodwill

Goodwill	3 Months Ended
	Sep. 27, 2024
Goodwill and Intangible Assets Disclosure [Abstract]
Goodwill	Goodwill In accordance with FASB ASC 350, Intangibles-Goodwill and Other (“ASC 350”), the Company determines its reporting units based upon whether discrete financial information is available, if management regularly reviews the operating results of the component, the nature of the products offered to customers and the market characteristics of each reporting unit. A reporting unit is considered to be an operating segment or one level below an operating segment also known as a component. Component level financial information is reviewed by management across two divisions: Mission Systems and Microelectronics. Accordingly, these were determined to be the Company's reporting units. The Company performs its annual goodwil l impairment test in the fourth quarter of each fiscal year. The Company estimates its fair value and compares the fair value with the carrying value of its reporting units, including goodwill using an income approach based upon a discounted cash flow (“DCF”) model to calculate the present value of cash flows to estimate its implied fair value. The future cash flows for the Company’s reporting units are projected based on the Company’s estimates, at that time, of future revenues, expenses, capital expenditures, and working capital. The discount rates used in the Company’s DCF model were based on a weighted-average cost of capital (“WACC”) determined from relevant market comparisons, adjusted upward for specific reporting unit risks (primarily the uncertainty of achieving projected operating cash flows). A terminal value growth rate is applied to the final year of the projected period, which reflects the Company’s estimate of stable, perpetual growth. The Company then calculated a present value of the respective cash flows for each reporting unit to arrive at an estimate of fair value under the income approach. In addition, the Company uses the market approach, which compares the reporting unit to publicly traded companies and transactions involving similar businesses, to support the conclusions of the income approach. Finally, the Company compared its estimates of fair values to its total market capitalization to assess the reasonableness of the reporting units combined determined fair value. The Company also assesses potential triggering events during interim reporting periods. During the first quarter ended September 27, 2024, the Company assessed events and circumstances to consider its reporting units for a potential triggering event, including: macroeconomic conditions, industry and market considerations, financial performance and expectations of projected financial performance and cash flows, changes in the Company's stock price in relation to the carrying value of its reporting units, among other relevant factors. The Company concluded that there were no triggering events during the period that would require an interim impairment test.

Restructuring

Restructuring	3 Months Ended
	Sep. 27, 2024
Restructuring and Related Activities [Abstract]
Restructuring	Restructuring During the first quarter ended September 27, 2024, the Company incurred $2,260 of severance costs. The Company incurs restructuring and other charges in connection with management's decision to undertake certain actions to realign operating expenses through workforce reductions and the closure of certain Company facilities, businesses and product lines. All of the restructuring and other charges are classified as Operating expenses in the Consolidated Statements of Operations and Comprehensive Loss and any remaining restructuring obligations are expected to be paid within the next twelve months. The restructuring liability is classified as Accrued expenses in the Consolidated Balance Sheets. The following table presents the detail of charges included in the Company’s liability for restructuring and other charges: Severance & Related Balance at June 28, 2024 $ 8,758 Restructuring charges 2,260 Cash paid (6,185) Balance at September 27, 2024 $ 4,833

Income Taxes

Income Taxes	3 Months Ended
	Sep. 27, 2024
Income Tax Disclosure [Abstract]
Income Taxes	Income Taxes The Company recorded an income tax benefit of $5,594 and $13,027 on a loss before income taxes of $23,119 and $49,735 for the first quarters ended September 27, 2024 and September 29, 2023, respectively. During the first quarters ended September 27, 2024 and September 29, 2023, the Company recognized a tax provision of $219 and $1,215 related to stock compensation shortfalls, respectively. The effective tax rate for the first quarter ended September 27, 2024 differed from the federal statutory rate primarily due to federal and state research and development credits, non-deductible compensation and state taxes. The effective tax rate for the first quarter ended September 29, 2023 differed from the federal statutory rate primarily due to federal and state research and development credits and state taxes. The Company continues to maintain a valuation allowance on the majority of its foreign net operating loss carryforwards and state research and developmental tax credit carryforwards. Based on forecasted taxable income and the scheduled reversal of the remaining deferred tax assets, the Company believes it is more likely than not that all other deferred tax assets will be recognized.

Debt

Debt	3 Months Ended
	Sep. 27, 2024
Debt Disclosure [Abstract]
Debt	Debt R EVOLVING C REDIT F ACILITY The Company maintains a 5-year revolving credit facility (the "Revolver") with a maturity extended to February 28, 2027. As of September 27, 2024, the Company's outstanding balance of unamortized deferred financing costs was $5,108, which is being amortized to Other expense, net in the Consolidated Statements of Operations and Comprehensive Loss on a straight line basis over the term of the Revolver and includes the costs incurred in conjunction with the August 2024 amendment to the Revolver. On November 7, 2023, due to the uncertainty surrounding a government shutdown or prolonged continuing resolution and the potential impact on the second quarter and fiscal 2024 results, the Company proactively executed Amendment No. 5 to the Revolver, as amended to date, with a syndicate of commercial banks and Bank of America, N.A acting as the administrative agent allowing for a temporary increase in the Consolidated Total Net Leverage Ratio covenant requirement from 4.50 to 5.25 for the second quarter ended December 29, 2023. In conjunction with Amendment No. 5 to the Revolver, the Company incurred $1,931 of new deferred financing costs that will be amortized over the remaining term of the Revolver. Refer to exhibit 10.1 on Form 8-K filed by the Company with the SEC on November 7, 2023. On August 13, 2024, the Company executed Amendment No. 6 to the Revolver, decreasing the permanent borrowing capacity to $900,000, with a temporary reduction in credit availability to $750,000 until the Company meets a minimum consolidated EBITDA level, as defined in the Amendment No. 6 to the Revolver. In conjunction with Amendment No. 6 to the Revolver, the Company incurred $2,249 of new deferred financing costs that will be amortized over the remaining term of the Revolver. As part of the amendment, the Company wrote off $714 of previously deferred financing costs associated with the line of credit facility prior to the amendment. This write-off is included in Other expense, net in the Consolidated Statements of Operations and Comprehensive Loss. Refer to exhibit 10.7.6 on Form 10-K filed by the Company with the SEC on August 13, 2024.

Employee Benefit Plan

Employee Benefit Plan	3 Months Ended
	Sep. 27, 2024
Retirement Benefits [Abstract]
Employee Benefit Plan	Employee Benefit Plan P ENSION P LAN The Company maintains a defined benefit pension plan (the “Plan”) for its Swiss employees, which is administered by an independent pension fund. The Plan is mandated by Swiss law and meets the criteria for a defined benefit plan under ASC 715, Compensation—Retirement Benefits (“ASC 715”), because participants of the Plan are entitled to a defined rate of return on contributions made. The independent pension fund is a multi-employer plan with unrestricted joint liability for all participating companies for which the Plan’s overfunding or underfunding is allocated to each participating company based on an allocation key determined by the Plan. The Company recognizes a net asset or liability for the Plan equal to the difference between the projected benefit obligation of the Plan and the fair value of the Plan’s assets as required by ASC 715. The funded status may vary from year to year due to changes in the fair value of the Plan’s assets and variations on the underlying assumptions of the projected benefit obligation of the Plan. The Plan's funded status at September 27, 2024 was a net liability of $5,383, which is recorded in Other non-current liabilities on the Consolidated Balance Sheet. The Company recognized net periodic benefit costs of $232 and $207 associated with the Plan and a net loss of $54 and $56 in AOCI during the first quarters ended September 27, 2024 and September 29, 2023, respectively. The Company's total expected employer contributions to the Plan during fiscal 2025 are $959. 401(k) Plan The Company maintains a qualified 401(k) plan (the “401(k) Plan”) for its U.S. employees and matches participants' contributions to the plan of up to 6% of their eligible annual compensation in Company stock. The Company may also make optional contributions to the plan for any plan year at its discretion. The Company had $2,981 and $2,901 of capitalized stock-based 401(k) matching compensation expense on the Consolidated Balance Sheets at September 27, 2024 and June 28, 2024, respectively. Stock-based 401(k) matching compensation cost is measured based on the value of the matching amount and is recognized as expense as incurred. During the first quarter ended September 27, 2024, the Company recognized share-based matching contributions related to the 401(k) plan of $4,432, as compared to $4,841 during the first quarter ended September 29, 2023. Deferred Compensation Plan The Company implemented a nonqualified deferred compensation plan as of January 1, 2024, under which eligible employees may defer up to 50% of their base salaries and up to 100% of their annual incentive bonuses. The Company may also make employer contributions to participant accounts in its sole discretion, and for calendar year 2024, will match participants’ deferrals under the plan of up to 6% of their eligible annual compensation in the form of deferred stock units (or at the Company’s election, a cash deferral credited to participants’ account balances). The Company’s matching obligation for 2024 is subject to the satisfaction of a financial performance condition for the Company's four fiscal quarters corresponding to the 2024 calendar year. Participant deferrals under the plan are held in a Rabbi trust and are subject to the claims of the Company’s creditors. Assets held by the rabbi trust are classified as trading securities and are recorded at fair value, with changes in value recorded as adjustments to other income. All deferrals or employer contributions under the plan, and all earnings thereon, are fully vested as and when made or credited to plan participants. As of September 27, 2024, the Company held assets under the rabbi trust of $183, and was subject to liabilities for amounts payable under the plan to participants (including accrued employer matching contributions not yet credited to plan participants) of $183. Assets related to this plan are included in Other assets, and liabilities related to this plan are included in Other long-term liabilities in the Consolidated Balance Sheets. During the first quarter ended September 27, 2024, the Company recognized an immaterial value of compensation expense as a result of changes in the value of notional investments selected by plan participants for the investment of their plan account balances, with the same amount being recorded as other income attributable to changes in the market value of the assets held by the Rabbi trust. The nonqualified deferred compensation plan was not in place as of the first quarter ended September 29, 2023.

Stock-Based Compensation

Stock-Based Compensation	3 Months Ended
	Sep. 27, 2024
Share-Based Payment Arrangement [Abstract]
Stock-Based Compensation	Stock-Based Compensation S TOCK I NCENTIVE P LANS At September 27, 2024, the aggregate number of shares authorized for issuance under the Company’s Amended and Restated 2018 Stock Incentive Plan (the “2018 Plan”) is 7,862 shares, including 3,000 shares approved by the Company's shareholders on October 28, 2020 and 2,000 shares approved for future grant under the 2018 Plan by the Company's shareholders on October 26, 2022. On October 25, 2023, the Company's shareholders approved an additional 3,450 shares to be added to the 2018 plan. The 2018 Plan shares available for issuance also include 948 shares rolled into the 2018 Plan that were available for future grant under the Company’s 2005 Stock Incentive Plan, as amended and restated (the “2005 Plan”). The 2018 Plan replaced the 2005 Plan. The shares authorized for issuance under the 2018 Plan will continue to be increased by any future cancellations, forfeitures or terminations of awards under the 2005 Plan. The foregoing does not affect any outstanding awards under the 2005 Plan, which remain in full force and effect in accordance with their terms. The 2018 Plan provides for the grant of non-qualified and incentive stock options, restricted stock, stock appreciation rights and deferred stock awards to employees and non-employees. Stock options must be granted with an exercise price of not less than 100% of the fair value of the Company’s common stock on the date of grant and the options generally have a term of seven years. There were 3,091 available shares for future grant under the 2018 Plan at September 27, 2024. As part of the Company's ongoing annual equity grant program for employees, the Company grants performance-based restricted stock awards to certain executives and employees pursuant to the 2018 Plan. Performance awards vest based on the requisite service period subject to the achievement of specific financial performance targets. Based on the performance targets, some of these awards require graded vesting which results in more rapid expense recognition compared to traditional time-based vesting over the same vesting period. The Company monitors the probability of achieving the performance targets on a quarterly basis and may adjust periodic stock compensation expense accordingly based on its determination of the likelihood for reaching targets. The performance targets generally include the achievement of financial performance goals, either on an absolute basis or relative to a peer group of companies. Payouts under performance-based restricted stock awards may also be subject to modification based on Mercury’s total shareholder return relative to the component companies within the Spade Defense Index. E MPLOYEE S TOCK P URCHASE P LAN The Company’s 1997 Employee Stock Purchase Plan, as amended and restated (the “1997 ESPP”) was terminated in accordance with its terms effective May 14, 2024. Under the 1997 ESPP, rights were granted to purchase shares of common stock at 85% of the lesser of the market value of such shares at either the beginning or the end of each six-month offering period. The 1997 ESPP permitted employees to purchase common stock through payroll deductions, which may not have exceeded 10% of an employee’s compensation as defined in the 1997 ESPP. There were no shares issued under the 1997 ESPP during the first quarter ended September 29, 2023. The Company adopted a new employee stock purchase plan (the “2024 ESPP”) in April 2024. The Company's shareholders approved the plan at the Company’s 2024 annual meeting of shareholders, held on October 23, 2024. The number of shares authorized for issuance under the 2024 ESPP is 1,000 shares. Under the 2024 ESPP, rights are granted to purchase shares of common stock at 85% of the lesser of the market value of such shares at either the beginning or the end of each six-month offering period. The 2024 ESPP permits employees to purchase common stock through payroll deductions, which may not exceed 10% of an employee’s compensation as defined in the 2024 ESPP. As of September 27, 2024, no shares have been issued under the 2024 ESPP. S TOCK O PTION A ND A WARD A CTIVITY On August 15, 2023, the Company announced that William L. Ballhaus was appointed as the Company’s President and Chief Executive Officer. Mr. Ballhaus received an onboarding grant of premium-priced stock options ("New Hire Option") under the 2018 Plan. The Company and Mr. Ballhaus are parties to an employment agreement, which is included in exhibit 10.1 on Form 8-K filed by the Company with the SEC on August 15, 2023. The following table summarizes activity of the Company's stock option plans since June 28, 2024: Options Outstanding Number of Weighted Average Weighted Average Weighted Average Aggregate Outstanding at June 28, 2024 934 $ 12.71 $ 45.00 — Granted — — Exercised — — Canceled — — Outstanding at September 27, 2024 934 $ 12.71 $ 45.00 3.45 — Exercisable at September 27, 2024 — $ — $ — — — There were no options vested or exercised during the first quarter ended September 27, 2024. Non-vested stock options are subject to the risk of forfeiture until the fulfillment of specified conditions. As of September 27, 2024, there was $8,360 of total unrecognized compensation cost related to non-vested options granted that is expected to be recognized over a weighted-average period of 2.45 years from September 27, 2024. There were no stock options granted during fiscal year ended June 28, 2024. The following table summarizes the status of the Company’s non-vested restricted stock awards and deferred stock awards since June 28, 2024: Non-vested Restricted Stock Awards Number of Weighted Average Outstanding at June 28, 2024 1,526 $ 41.35 Granted 895 40.08 Vested (235) 44.61 Forfeited (63) 44.18 Outstanding at September 27, 2024 2,123 $ 40.31 S TOCK -B ASED C OMPENSATION E XPENSE The Company recognizes expense for its share-based payment plans in the Consolidated Statements of Operations and Comprehensive Loss in accordance with ASC 718, Compensation - Stock Compensation (“ASC 718”). The Company had $715 and $456 of capitalized stock-based compensation expense on the Consolidated Balance Sheets for the periods ended September 27, 2024 and June 28, 2024, respectively. Under the fair value recognition provisions of ASC 718, stock-based compensation cost is measured at the grant date based on the value of the award and is recognized as expense over the service period, net of estimated forfeitures. The following table presents share-based compensation expenses included in the Company’s Consolidated Statements of Operations and Comprehensive Loss: First Quarters Ended September 27, 2024 September 29, 2023 Cost of revenues $ 113 $ 816 Selling, general and administrative 4,611 1,761 Research and development 1,368 1,540 Stock-based compensation expense before tax 6,092 4,117 Income taxes (1) (1,645) (1,112) Stock-based compensation expense, net of income taxes $ 4,447 $ 3,005 (1) Federal and state statutory rate of 27%

Operating Segment, Geographic I

Operating Segment, Geographic Information and Significant Customers	3 Months Ended
	Sep. 27, 2024
Segment Reporting [Abstract]
Operating Segment, Geographic Information and Significant Customers	Operating Segment, Geographic Information and Significant Customers Operating segments are defined as components of an enterprise evaluated regularly by the Company's chief operating decision maker (“CODM”) in deciding how to allocate resources and assess performance. The Company evaluated its internal organization under FASB ASC 280, Segment Reporting (“ASC 280”) to determine whether there has been a change to its conclusion of a single operating and reportable segment. The Company concluded there has been no changes given the CODM continues to evaluate and manage the Company on the basis of one operating and reportable segment. The Company utilized the management approach for determining its operating segment in accordance with ASC 280. The geographic distribution of the Company’s revenues as determined by country in which the Company's legal subsidiary is domiciled is summarized as follows: U.S. Europe Asia Pacific Eliminations Total FIRST QUARTER ENDED SEPTEMBER 27, 2024 Net revenues to unaffiliated customers $ 192,660 $ 11,771 $ — $ — $ 204,431 Inter-geographic revenues 2,055 2,819 — (4,874) — Net revenues $ 194,715 $ 14,590 $ — $ (4,874) $ 204,431 FIRST QUARTER ENDED SEPTEMBER 29, 2023 Net revenues to unaffiliated customers $ 171,881 $ 9,104 $ 6 $ — $ 180,991 Inter-geographic revenues 1,719 92 — (1,811) — Net revenues $ 173,600 $ 9,196 $ 6 $ (1,811) $ 180,991 The Company offers a broad family of products and processing solutions designed to meet the full range of requirements in compute-intensive, signal processing, image processing and command and control applications. To maintain a competitive advantage, the Company seeks to leverage technology investments across multiple product lines and product solutions. The Company’s products are typically compute-intensive and require extremely high bandwidth and high throughput. These processing solutions often must also meet significant size, weight and power ("SWaP") constraints for use in aircraft, unmanned aerial vehicles, ships and other platforms and be ruggedized for use in harsh environments. The Company's products transform the massive streams of digital data created in these applications into usable information in real time. The systems can scale from a few processors to thousands of processors. In recent years, the Company completed a series of acquisitions that changed its technological capabilities, applications and end markets. As these acquisitions and changes occurred, the Company's proportion of revenue derived from the sale of components in different technological areas, and modules, sub-assemblies and integrated solutions which combine technologies into more complex diverse products has shifted. The following tables present revenue consistent with the Company's strategy of expanding its technological capabilities and program content. As additional information related to the Company’s products by end user, application, product grouping and/or platform is attained, the categorization of these products can vary over time. When this occurs, the Company reclassifies revenue by end user, application, product grouping and/or platform for prior periods. Such reclassifications typically do not materially change the underlying trends of results within each revenue category. The following table presents the Company's net revenue by end user for the periods presented: First Quarters Ended September 27, 2024 September 29, 2023 Domestic (1) $ 161,194 $ 146,467 International/Foreign Military Sales (2) 43,237 34,524 Total Net Revenue $ 204,431 $ 180,991 (1) Domestic revenues consist of sales where the end user is within the U.S., as well as sales to prime defense contractor customers where the ultimate end user location is not defined. (2) International/Foreign Military Sales consist of sales to U.S. prime defense contractor customers where the end user is outside the U.S., foreign military sales through the U.S. government, and direct sales to non-U.S. based customers intended for end use outside of the U.S. The following table presents the Company's net revenue by end application for the periods presented: First Quarters Ended September 27, 2024 September 29, 2023 Radar (1) $ 33,749 $ 26,703 Electronic Warfare (2) 26,346 24,466 Other Sensor & Effector (3) 26,366 21,166 Total Sensor & Effector 86,461 72,335 C4I (4) 85,280 90,238 Other (5) 32,690 18,418 Total Net Revenue $ 204,431 $ 180,991 (1) Radar includes end-use applications where radio frequency signals are utilized to detect, track and identify objects. (2) Electronic Warfare includes end-use applications comprising the offensive and defensive use of the electromagnetic spectrum. (3) Other Sensor and Effector products include all Sensor and Effector end markets other than Radar and Electronic Warfare. (4) C4I includes rugged secure rackmount servers that are designed to drive the most powerful military processing applications. (5) Other products include all component and other sales where the end use is not specified. The following table presents the Company's net revenue by product grouping for the periods presented: First Quarters Ended September 27, 2024 September 29, 2023 Components (1) $ 44,864 $ 37,509 Modules and Sub-assemblies (2) 45,822 37,533 Integrated Solutions (3) 113,745 105,949 Total Net Revenue $ 204,431 $ 180,991 (1) Components represent the basic building blocks of an electronic system. They generally perform a single function such as switching, storing or converting electronic signals. Some examples include power amplifiers and limiters, switches, oscillators, filters, equalizers, digital and analog converters, chips, MMICs (monolithic microwave integrated circuits) and memory and storage devices. (2) Modules and sub-assemblies combine multiple components to serve a range of complex functions, including processing, networking and graphics display. Typically delivered as computer boards or other packaging, modules and sub-assemblies are usually designed using open standards to provide interoperability when integrated in a subsystem. Examples of modules and sub-assemblies include embedded processing boards, switched fabrics and boards for high-speed input/output, digital receivers, graphics and video, along with multi-chip modules, integrated radio frequency and microwave multi-function assemblies and radio frequency tuners and transceivers. (3) Integrated solutions bring components, modules and/or sub-assemblies into one system, enabled with software. Subsystems are typically, but not always, integrated within an open standards-based chassis and often feature interconnect technologies to enable communication between disparate systems. Spares and replacement modules and sub-assemblies are provided for use with subsystems sold by the Company. The Company’s subsystems are deployed in sensor processing, aviation and mission computing and C4I applications. The following table presents the Company's net revenue by platform for the periods presented: First Quarters Ended September 27, 2024 September 29, 2023 Airborne (1) $ 90,490 $ 104,716 Land (2) 34,314 25,703 Naval (3) 20,653 21,143 Space (4) 15,359 6,063 Other (5) 43,615 23,366 Total Net Revenues $ 204,431 $ 180,991 (1) Airborne platform includes products that relate to personnel, equipment or pieces of equipment designed for airborne applications. (2) Land platform includes products that relate to fixed or mobile equipment, or pieces of equipment for personnel, weapon systems, vehicles and support elements operating on land. (3) Naval platform includes products that relate to personnel, equipment or pieces of equipment designed for naval operations. (4) Space platform includes products that relate to personnel, equipment or pieces of equipment designed for space operations. (5) All platforms other than Airborne, Land, Naval, or Space. The geographic distribution of the Company’s identifiable long-lived assets is summarized as follows: U.S. Europe Total September 27, 2024 $ 103,176 $ 1,883 $ 105,059 June 28, 2024 $ 107,655 $ 2,698 $ 110,353 Identifiable long-lived assets exclude right-of-use assets, goodwill, and intangible assets. Customers comprising 10% or more of the Company’s revenues for the periods shown are as follows: First Quarters Ended September 27, 2024 September 29, 2023 L3Harris 12 % 12 % Lockheed Martin Corporation 11 % 13 % RTX Corporation * 11 % 23 % 36 % * Indicates that the amount is less than 10% of the Company's revenue for the respective period. While the Company typically has customers from which it derives 10% or more of its revenue, the sales to each of these customers are spread across multiple programs and platforms. There were no programs comprising 10% or more of the Company's revenues for the first quarters ended September 27, 2024 and September 29, 2023.

Commitments and Contingencies

Commitments and Contingencies	3 Months Ended
	Sep. 27, 2024
Commitments and Contingencies Disclosure [Abstract]
Commitments and Contingencies	Commitments and Contingencies L EGAL C LAIMS The Company is subject to litigation, claims, investigations and audits arising from time to time in the ordinary course of business. Although legal proceedings are inherently unpredictable, the Company believes that it has valid defenses with respect to those matters currently pending against the Company and intends to defend itself vigorously. The outcome of these matters, individually and in the aggregate, is not expected to have a material impact on the Company's cash flows, results of operations, or financial position. On December 7, 2021, counsel for National Technical Systems, Inc. (“NTS”) sent the Company an environmental demand letter pursuant to Massachusetts General Laws Chapter 21E, Section 4A, and CERCLA 42 U.S.C. Section 9601, related to a site that NTS formerly owned at 533 Main Street, Acton, Massachusetts. NTS received a Notice of Responsibility from the Massachusetts Department of Environmental Protection (“MassDEP”) alleging trichloroethene, freon and 1,4-dioxane contamination in the groundwater emanating from NTS’s former site. NTS alleges in its demand letter that the operations of a predecessor company to the Company that was acquired in the Company's acquisition of the Microsemi Carve-Out Business that once owned and operated a facility at 531 Main Street, Acton, Massachusetts contributed to the groundwater contamination. NTS is seeking payment from the Company of NTS’s costs for any required environmental remediation. In April 2022, the Company engaged in a meet and confer session with NTS pursuant to Massachusetts General Laws Chapter 21E, Section 4A to discuss the status of the environmental review performed by NTS and its licensed site professional. The Company subsequently delivered a letter to NTS outlining the deficiencies in their claim and reiterated that the Company is not obligated to tender a substantive response to their demand without first having received the responsive information requested in connection with the meet and confer session. In April 2024, counsel for NTS sent additional communications on their demand that the Company participate in their environmental monitoring and remediation planning, and in May 2024, the Company responded with a rebuttal of the allegations. The Company believes the NTS claims are without merit and intends to defend itself vigorously. In addition, in November 2021, the Company responded to a request for information from MassDEP regarding the detection of PFAS (per- and polyfluoroakyl substances) in the Acton, Massachusetts Water District’s Conant public water supply wells near the former facility at 531 Main Street, Acton, Massachusetts at a level above the standard that MassDEP published for PFAS in October 2020. The Company has not been contacted by MassDEP since the Company's response was provided in November 2021. It is too early to determine what responsibility, if any, Mercury may have for these environmental matters. On June 19, 2023, the Board of Directors received notice of the Company’s former CEO’s resignation from the positions of President and Chief Executive Officer. The Board accepted his resignation effective June 24, 2023. In the notice, the former CEO claimed he was entitled to certain benefits, including equity vesting, severance, and other benefits, under the change in control severance agreement (the “CIC Agreement”) because the former CEO had resigned with good reason during a potential change in control period. The Company disputes these claims and maintains that the former CEO resigned without good reason. On September 19, 2023, the former CEO filed for binding arbitration under the employment rules of the American Arbitration Association (“AAA”). An arbitrator was appointed on November 29, 2023, and an arbitration trial that was initially scheduled for mid-December 2024 has been rescheduled to late March 2025. On March 25, 2024, the arbitrator denied Mr. Aslett's motion for compensation during the dispute and payment of his legal fees, preserving those matters for the arbitration trial. The Company intends to contest vigorously the claims under the CIC Agreement and believes that the Company has strong arguments that the former CEO’s claims lack merit. If the arbitrator rules in the Company’s favor, the Company may still need to pay the former CEO’s reasonable legal fees, interest, and compensation during the dispute. If instead the arbitrator rules for the former CEO, the Company could be liable for up to approximately $14,100, based on the closing price of the Company's common stock on June 26, 2023, for accelerated equity vesting, severance, and other benefits under the CIC Agreement, plus interest, legal fees and expenses and compensation during dispute, which could include Mr. Aslett's base salary and other amounts based on the compensation, benefit and insurance plans in which he participated. The Company categorically denies any wrongdoing or liability under the CIC Agreement, but the outcome of potential arbitration is inherently uncertain. Accordingly, it is reasonably possible that the Company will incur a liability in this matter, and the Company estimates the potential range of exposure from $0 to $14,100, plus costs and attorneys’ fees, interest and compensation to the former CEO during the dispute. On December 13, 2023, a securities class action complaint was filed against the Company, Mark Aslett, and Michael Ruppert in the U.S. District Court for the District of Massachusetts. The complaint asserted Section 10(b) and 20(a) securities fraud claims on behalf of a purported class of purchasers and sellers of the Company's stock from December 7, 2020, through June 23, 2023. The complaint alleged that the Company's public disclosures in SEC filings and on earnings calls were false and/or misleading. On February 27, 2024, the Court entered an order appointing Carpenters Pension Trust Fund for Northern California as lead plaintiff. On April 18, 2024, the lead plaintiff filed an amended complaint including William Ballhaus and David Farnsworth as additional defendants and amended the class period to February 3, 2021 through February 6, 2024. The Company filed a motion to dismiss on May 24, 2024, and after the plaintiffs’ filed their opposition motion and the Company filed its reply to their opposition, a hearing on the motion was conducted by the Court on July 24, 2024. On July 24, 2024, the Court dismissed the case without prejudice and permitted the plaintiffs 30 days to file an amended complaint. The plaintiffs filed for leave to amend their complaint on August 23, 2024, Mercury filed its opposition motion on September 6th, the plaintiffs filed their response brief on September 17, 2024, and Mercury filed its reply on September 30, 2024. On October 17, 2024, Mercury received a shareholder derivative demand alleging the same claims as those covered in the federal securities class action. Subject to the terms of the Company's by-laws and applicable Massachusetts law, Mr. Aslett, the Company's former Chief Executive Officer, and Mr. Ruppert, the Company's former Chief Financial Officer, Mr. Ballhaus, the Company's current Chief Executive Officer, and Mr. Farnsworth, the Company's current Chief Financial officer, are indemnified by the Company for this matter. The Company believes the claims in the complaints are without merit and intends to defend itself vigorously. It is too early to determine what responsibility, if any, the Company will have for this matter. On January 31, 2024, a former employee at the Company's Torrance, California location, filed a wage and hour class action lawsuit in California state court in Los Angeles County, along with a companion Private Attorneys General Act (“PAGA”) lawsuit, to act in a representative capacity for other Mercury Mission Systems, LLC employees in California, alleging a range of violations of California wage and hour regulations. On October 1, 2024, a second former employee at our Torrance location filed a PAGA notice to act in a representative capacity on allegations of a range of violations of California wage and hour regulations. The Company believes the claims in the complaints are without merit and intends to defend itself vigorously. It is too early to determine what responsibility, if any, the Company will have for this matter. I NDEMNIFICATION O BLIGATIONS The Company’s standard product sales and license agreements entered into in the ordinary course of business typically contain an indemnification provision pursuant to which the Company indemnifies, holds harmless, and agrees to reimburse the indemnified party for losses suffered or incurred by the indemnified party in connection with any patent, copyright or other intellectual property infringement claim by any third party with respect to the Company’s products. Such provisions generally survive termination or expiration of the agreements. The potential amount of future payments the Company could be required to make under these indemnification provisions is, in some instances, unlimited. P URCHASE C OMMITMENTS As of September 27, 2024, the Company has entered into non-cancelable purchase commitments for certain inventory components and services used in its normal operations. The purchase commitments covered by these agreements are for less than one year and aggregate to $120,574 . O THER As part of the Company's strategy for growth, the Company continues to explore acquisitions or strategic alliances. The associated acquisition costs incurred in the form of professional fees and services may be material to the future periods in which they occur, regardless of whether the acquisition is ultimately completed. The Company may elect from time to time to purchase and subsequently retire shares of common stock in order to settle employees’ tax liabilities associated with vesting of a restricted stock award or exercise of stock options. These transactions would be treated as a use of cash in financing activities in the Company's Consolidated Statements of Cash Flows.

Derivatives

Derivatives	3 Months Ended
	Sep. 27, 2024
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Derivatives	Derivatives The Company utilizes interest rate derivatives to mitigate interest rate exposure with respect to its financing arrangements. On September 29, 2022, the Company entered into the Swap with JP Morgan Chase Bank, N.A. ("JPMorgan") for a notional amount of $300,000 in order to fix the interest rate associated with a portion of the total $511,500 existing borrowings on the Revolver at the time of the Swap. The Swap agreement was designated and qualified for hedge accounting treatment as a cash flow hedge. The Swap was scheduled to mature on February 28, 2027, coterminous with the maturity of the Revolver. The Swap established a fixed interest rate on the first $300,000 of the Company's outstanding borrowings against the Revolver obligation at 3.79%. On September 28, 2023, the Company terminated the Swap. At the time of termination, the fair value of the Swap was an asset of $7,403. The Company received the cash settlement of $7,403 and these proceeds are classified within Operating Activities of the Consolidated Statements of Cash Flows. Following the termination of the Swap, the Company entered into the September 2023 Swap agreement on September 28, 2023 with JPMorgan for a notional amount of $300,000 in order to fix the interest rate associated with a portion of the total $576,500 existing borrowings on Company's Revolver at the time of the Swap at 4.66%. The September 2023 Swap agreement was designated and qualified for hedge accounting treatment as a cash flow hedge. The September 2023 Swap matures on February 28, 2027, coterminous with the maturity of the Revolver. As of September 27, 2024, the fair value of the September 2023 Swap was a liability of $9,628 and is included within Other non-current liabilities in the Company's Consolidated Balance Sheets. During the first quarter ended September 27, 2024, the Company amortized a total of $881 of the gain associated with the interest swaps terminated on September 29, 2022 and September 28, 2023, which is included within Other comprehensive loss. The market risk associated with the Company’s derivative instrument is the result of interest rate movements that are expected to offset the market risk of the underlying arrangement. The counterparty to the September 2023 Swap is JPMorgan. Based on the credit ratings of the Company’s counterparty as of September 27, 2024, nonperformance is not perceived to be a material risk. Furthermore, none of the Company’s derivatives are subject to collateral or other security arrangements and none contain provisions that are dependent on the Company’s credit ratings from any credit rating agency. While the contract or notional amounts of derivative financial instruments provide one measure of the volume of these transactions, they do not represent the amount of the Company’s exposure to credit risk. The amounts potentially subject to credit risk (arising from the possible inability of the counterparty to meet the terms of their contracts) are generally limited to the amounts, if any, by which the counterparty obligations under the contracts exceed the obligations of the Company to the counterparty. As a result of the above considerations, the Company does not consider the risk of counterparty default to be significant.

Subsequent Events

Subsequent Events	3 Months Ended
	Sep. 27, 2024
Subsequent Events [Abstract]
Subsequent Events	Subsequent Events The Company has evaluated subsequent events from the date of the Consolidated Balance Sheet through the date the consolidated financial statements were issued and noted no items requiring adjustment of the financial statements or additional disclosures.

Pay vs Performance Disclosure

Pay vs Performance Disclosure - USD ($) $ in Thousands	3 Months Ended
	Sep. 27, 2024	Sep. 29, 2023
Pay vs Performance Disclosure
Net loss	$ (17,525)	$ (36,708)

Insider Trading Arrangements

Insider Trading Arrangements	3 Months Ended
	Sep. 27, 2024
Trading Arrangements, by Individual
Rule 10b5-1 Arrangement Adopted	false
Non-Rule 10b5-1 Arrangement Adopted	false
Rule 10b5-1 Arrangement Terminated	false
Non-Rule 10b5-1 Arrangement Terminated	false

Summary of Significant Accoun_2

Summary of Significant Accounting Policies (Policies)	3 Months Ended
	Sep. 27, 2024
Accounting Policies [Abstract]
Basis of Presentation	B ASIS OF P RESENTATION The accompanying consolidated financial statements have been prepared by the Company in accordance with Generally Accepted Accounting Principles (“GAAP”) in the United States of America for interim financial information and with the instructions to the Form 10-Q and Article 10 of Regulation S-X. Certain information and footnote disclosures normally included in annual consolidated financial statements have been condensed or omitted pursuant to those rules and regulations; however, in the opinion of management the financial information reflects all adjustments, consisting of adjustments of a normal recurring nature, necessary for fair presentation. These consolidated financial statements should be read in conjunction with the audited consolidated financial statements and related notes for the fiscal year ended June 28, 2024, which are contained in the Company’s Annual Report on Form 10-K filed with the SEC on August 13, 2024. The results for the first quarter ended September 27, 2024 are not necessarily indicative of the results to be expected for the full fiscal year. The consolidated financial statements include the accounts of the Company and its wholly-owned subsidiaries. All intercompany transactions and balances have been eliminated in consolidation.
Use of Estimates	U SE OF E STIMATES 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 and disclosure of contingent assets and liabilities at the dates of the financial statements and the reported amounts of revenues and expenses during the reporting periods. Actual results could differ from those estimates.
Foreign Currency	F OREIGN C URRENCY Local currencies are the functional currency for the Company’s subsidiaries in Switzerland, the United Kingdom, Spain and Canada. The accounts of foreign subsidiaries are translated using exchange rates in effect at period-end for assets and liabilities and at average exchange rates during the period for results of operations. The related translation adjustments are reported in Accumulated other comprehensive income (“AOCI”) in shareholders’ equity. Gains (losses) resulting from non-U.S. currency transactions are included in Other expense, net in the Consolidated Statements of Operations and Comprehensive Loss and were immaterial for all periods presented.
Accounts Receivable	A CCOUNTS R ECEIVABLE Accounts receivable, net, represents amounts that have been billed and are currently due from customers. The Company maintains an allowance for credit losses to provide for the estimated amount of receivables that will not be collected. The Company provides credit to customers in the normal course of business. The Company performs ongoing credit evaluations of its customers’ financial condition and limits the amount of credit extended as necessary. The allowance is based upon an assessment of the customer's credit worthiness, reasonable forecasts about the future, history with the customer, and the age of the receivable balance. The Company typically invoices a customer upon shipment of the product (or completion of a service) for contracts where revenue is recognized at a point in time. For contracts where revenue is recognized over time, the invoicing events are typically based on specified performance obligation deliverables or milestone events, or quantifiable measures of performance.
Derivatives	D ERIVATIVES The Company records the fair value of its derivative financial instruments in its consolidated financial statements in Other non-current assets, or Other non-current liabilities depending on their net position, regardless of the purpose or intent for holding the derivative contract. Changes in the fair value of the derivative financial instruments are either recognized periodically in earnings or in shareholders’ equity as a component of Other comprehensive income (loss) (“OCI”). Changes in the fair value of cash flow hedges that qualify for hedge accounting treatment are recorded in OCI and reclassified into earnings in the same line item on the Consolidated Statements of Operations and Comprehensive Loss as the impact of the hedged transaction when the underlying contract matures and, for interest rate exposure derivatives, over the term of the corresponding debt instrument. Changes in the fair values of derivatives not qualifying for hedge accounting are reported in earnings as they occur. All derivatives for the Company qualified for hedge accounting as of September 27, 2024.
Revenue Recognition, Contract Balances and Remaining Performance Obligations	R EVENUE R ECOGNITION The Company recognizes revenue in accordance with ASC 606, Revenue from Contracts with Customers , (“ASC 606”). Revenues are derived from the sales of products that are grouped into one of the following three categories: (i) components; (ii) modules and sub-assemblies; and (iii) integrated solutions. The Company also generates revenues from the performance of services, including systems engineering support, consulting, maintenance and other support, testing and installation. Each promised good or service within a contract is accounted for separately under the guidance of ASC 606 if they are distinct. Promised goods or services not meeting the criteria for being a distinct performance obligation are bundled into a single performance obligation with other goods or services that together meet the criteria for being distinct. The appropriate allocation of the transaction price and recognition of revenue is then determined for the bundled performance obligation. Revenue recognized at a point in time generally relates to contracts that include a combination of components, modules and sub-assemblies, integrated solutions and related system integration or other services. Contracts with distinct performance obligations recognized at a point in time, with or without an allocation of the transaction price, to taled 45% and 42% of revenues for the first quarters ended September 27, 2024 and September 29, 2023, respectively. The Company also engages in contracts for development, production and service activities and recognizes revenue for performance obligations over time. These over time contracts involve the design, development, manufacture, or modification of complex modules and sub-assemblies or integrated solutions and related services. Over time contracts include both fixed-price and cost reimbursable contracts. The Company’s cost reimbursable contracts typically include cost-plus fixed fee and time and material contracts. Accounting for contracts recognized over time requires significant judgment relative to estimating total contract revenues and costs. In particular, this includes assumptions relative to the amount of time to complete the contract and the assessment of the nature and complexity of the work to be performed and the impact of contract amendments which may result in cumulative adjustments. The Company's estimates are based upon the professional knowledge and experience of its engineers, operations, program managers and other personnel, who review each over time contract monthly to assess the contract’s schedule, performance, technical matters and estimated cost at completion. Changes in estimates are applied retrospectively and when adjustments in estimated contract costs are identified, such revisions may result in current period adjustments to earnings applicable to performance in prior periods. The aggregate effects of these favorable and unfavorable changes across the Company’s portfolio of programs can have a significant effect upon its reported Loss from operations, Net loss and Diluted net loss per share in each of the reporting periods. The net impact of changes in estimates had the following impact on the Company’s operating results: First Quarters Ended (In thousands, except per share data) September 27, 2024 September 29, 2023 Loss from operations $ (8,293) $ (16,463) Net loss (1) $ (6,054) $ (12,018) Diluted net loss per share $ (0.10) $ (0.21) Diluted Shares 58,260 57,105 (1) Federal and state statutory rate of 27% Total revenue recognized over time was 55% and 58% of total revenues for the first quarters ended September 27, 2024 and September 29, 2023, respectively. The Company generally does not provid e its customers with rights of product return other than those related to assurance warranty provisions that permit repair or replacement of defective goods generally over a period of 12 to 36 months. The Company accrues for anticipated warranty costs upon product shipment. The Company does not consider activities related to such assurance warranties, if any, to be a separate performance obligation. The Company does offer separately priced extended warranties which generally range from 12 to 36 months that are treated as separate performance obligations. The transaction price allocated to extended warranties is recognized over time in proportion to the costs expected to be incurred in satisfying the obligations under the contract. The Company's contracts generally do not include significant financing components. The Company's over time contracts may include milestone payments, which align the payment schedule with the progress towards completion on the performance obligation. Otherwise, the Company's contracts are predicated on payment upon completion of the performance obligation. On certain contracts, the Company may be entitled to receive an advance payment, which is not considered a significant financing component because most contracts have a duration of approximately two years on average and it is used to facilitate inventory demands at the onset of a contract and to safeguard the Company from the failure of the other party to abide by some or all of their obligations under the contract. All revenues are reported net of government assessed taxes (e.g., sales taxes or value-added taxes). Refer to Note K for disaggregation of revenue for the period. C ONTRACT B ALANCES Contract balances result from the timing of revenue recognized, billings and cash collections resulting in the generation of contract assets and liabilities. Contract assets represent revenue recognized in excess of amounts invoiced to the customer and the right to payment is not subject to the passage of time. Instead, while the Company has an enforceable right to payment as progress is made over performance obligations, billings to customers are generally predicated on (i) completion of defined milestones, (ii) monthly costs incurred or (iii) final delivery of goods or services. Contract assets are presented as Unbilled receivables and costs in excess of billings, net of allowance for credit losses on the Company’s Consolidated Balance Sheets. Contract liabilities consist of deferred product revenue, billings in excess of revenues, deferred service revenue and customer advances. Deferred product revenue represents amounts that have been invoiced to customers, but are not yet recognizable as revenue because the Company has not satisfied its performance obligations under the contract. Billings in excess of revenues represents milestone billing contracts where the billings of the contract exceed recognized revenues. Deferred service revenue primarily represents amounts invoiced to customers for annual maintenance contracts or extended warranty contracts, which are recognized over time in proportion to the costs expected to be incurred in satisfying the obligations under the contract. Customer advances represent deposits received from customers on an order. Contract liabilities are included in deferred revenue as well as Other non-current liabilities on the Company’s Consolidated Balance Sheets. Contract balances are reported in a net position on a contract-by-contract basis. R EMAINING P ERFORMANCE O BLIGATIONS
Long-Lived Assets	L ONG -L IVED A SSETS Long-lived assets primarily include property and equipment, intangible assets and right-of-use ("ROU") assets. The Company regularly evaluates its long-lived assets for events and circumstances that indicate a potential impairment in accordance with ASC 360, Property, Plant and Equipment
Goodwill and Intangible Assets	G OODWILL AND I NTANGIBLE A SSETS Goodwill is the amount by which the purchase price of a business acquisition exceeded the fair values of the net identifiable assets on the date of purchase (see Note E). In accordance with the requirements of Intangibles-Goodwill and Other (“ASC 350”), goodwill is not amortized. Goodwill is assessed for impairment at least annually, on a reporting unit basis, or when events and circumstances (“triggering event”) occur indicating that the recorded goodwill may be impaired. Potential triggering events include macroeconomic conditions, industry and market considerations, financial performance and expectations of projected financial performance and cash flows, and changes in the Company's stock price in relation to the carrying value of its reporting units, among other relevant factors. Adverse changes to these events and circumstances could require the Company to perform an interim impairment test. Intangible assets result from the Company’s various business acquisitions and certain licensed technologies, and consist of identifiable intangible assets, including completed technology, licensing agreements, patents, customer relationships, trademarks, backlog and non-compete agreements. Intangible assets are reported at cost, net of accumulated amortization and are either amortized on a straight-line basis over their estimated useful lives of up to 12.5 years or over the period the economic benefits of the intangible asset are consumed.
Weighted-Average Shares	Equity instruments to purchase 2,694 and 1,912 shares of common stock were not included in the calculation of diluted net loss per share for the first quarters ended September 27, 2024 and September 29, 2023, respectively, because the equity instruments were anti-dilutive.
Recently Issued And Adopted Accounting Pronouncements	R ECENTLY I SSUED A CCOUNTING P RONOUNCEMENTS In November 2023, the FASB issued ASU No. 2023-07, Segment Reporting (ASC 280): Improvements to Reportable Segment Disclosures , an amendment of the FASB Accounting Standards Codification. The amendments in this ASU address improvements to reportable segment disclosure requirements, specifically requiring disclosure of significant segment expenses. The amendment also extends certain annual disclosures to interim periods, and clarifies that single reportable segment entities must apply ASC 280 in its entirety, inclusive of this update. This ASU is effective for fiscal years beginning after December 15, 2023, as well as all interim periods within fiscal years beginning after December 15, 2024, with early adoption permitted, including adoption in an interim period. The Company is currently evaluating the effect that this standard will have on its consolidated financial statements and related disclosures. In December 2023, the FASB issued ASU No. 2023-09, Improvement to Income Tax Disclosures , an amendment of the FASB Accounting Standards Codification. The amendments in this ASU enact new income tax disclosure requirements in addition to modifying existing requirements. The amendment requires entities to categorize and provide greater disaggregation of information in the rate reconciliation and income taxes paid disclosures. This ASU is effective for fiscal years beginning after December 15, 2024, with early adoption permitted. The Company is currently evaluating the effect that this standard will have on its consolidated financial statements and related disclosures. R ECENTLY A DOPTED A CCOUNTING P
Stock-Based Compensation	As part of the Company's ongoing annual equity grant program for employees, the Company grants performance-based restricted stock awards to certain executives and employees pursuant to the 2018 Plan. Performance awards vest based on the requisite service period subject to the achievement of specific financial performance targets. Based on the performance targets, some of these awards require graded vesting which results in more rapid expense recognition compared to traditional time-based vesting over the same vesting period. The Company monitors the probability of achieving the performance targets on a quarterly basis and may adjust periodic stock compensation expense accordingly based on its determination of the likelihood for reaching targets. The performance targets generally include the achievement of financial performance goals, either on an absolute basis or relative to a peer group of companies. Payouts under performance-based restricted stock awards may also be subject to modification based on Mercury’s total shareholder return relative to the component companies within the Spade Defense Index.

Summary of Significant Accoun_3

Summary of Significant Accounting Policies (Tables)	3 Months Ended
	Sep. 27, 2024
Accounting Policies [Abstract]
Schedule of Net Impact Of Changes In Operating Results	The net impact of changes in estimates had the following impact on the Company’s operating results: First Quarters Ended (In thousands, except per share data) September 27, 2024 September 29, 2023 Loss from operations $ (8,293) $ (16,463) Net loss (1) $ (6,054) $ (12,018) Diluted net loss per share $ (0.10) $ (0.21) Diluted Shares 58,260 57,105 (1) Federal and state statutory rate of 27%
Schedule of Product Warranty Liability	The following table presents the changes in the Company's product warranty accrual. Total Balance at June 28, 2024 $ 5,721 Accruals for warranties issued during the period 97 Settlements made during the period (998) Balance at September 27, 2024 $ 4,820
Schedule of Weighted-Average Shares	Weighted-average shares were calculated as follows: First Quarters Ended September 27, 2024 September 29, 2023 Basic weighted-average shares outstanding 58,260 57,105 Effect of dilutive equity instruments — — Diluted weighted-average shares outstanding 58,260 57,105

Fair Value of Financial Instr_2

Fair Value of Financial Instruments (Tables)	3 Months Ended
	Sep. 27, 2024
Fair Value Disclosures [Abstract]
Schedule of Financial Liabilities Measured at Fair Value on a Recurring Basis	The following table summarizes the Companies' financial instruments measured at fair value on a recurring basis as of September 27, 2024: Fair Value Measurements September 27, 2024 Level 1 Level 2 Level 3 Liabilities: Interest rate swap $ 9,628 $ — $ 9,628 $ — Total $ 9,628 $ — $ 9,628 $ —
Schedule of Financial Assets Measured at Fair Value on a Recurring Basis	The following table summarizes the Companies' financial instruments measured at fair value on a recurring basis as of June 28, 2024: Fair Value Measurements June 28, 2024 Level 1 Level 2 Level 3 Liabilities: Interest rate swap $ 2,436 $ — $ 2,436 $ — Total assets measured at fair value $ 2,436 $ — $ 2,436 $ —

Inventory (Tables)

Inventory (Tables)	3 Months Ended
	Sep. 27, 2024
Inventory Disclosure [Abstract]
Schedule of Inventory	The excess and obsolete inventory evaluation is based upon assumptions about future demand, historical usage, product mix and possible alternative uses. Inventory was comprised of the following: As of September 27, 2024 June 28, 2024 Raw materials $ 206,986 $ 200,501 Work in process 124,321 118,060 Finished goods 19,781 16,739 Total $ 351,088 $ 335,300

Restructuring (Tables)

Restructuring (Tables)	3 Months Ended
	Sep. 27, 2024
Restructuring and Related Activities [Abstract]
Schedule of Charges for Restructuring	The following table presents the detail of charges included in the Company’s liability for restructuring and other charges: Severance & Related Balance at June 28, 2024 $ 8,758 Restructuring charges 2,260 Cash paid (6,185) Balance at September 27, 2024 $ 4,833

Stock-Based Compensation (Table

Stock-Based Compensation (Tables)	3 Months Ended
	Sep. 27, 2024
Share-Based Payment Arrangement [Abstract]
Schedule of Stock Options	The following table summarizes activity of the Company's stock option plans since June 28, 2024: Options Outstanding Number of Weighted Average Weighted Average Weighted Average Aggregate Outstanding at June 28, 2024 934 $ 12.71 $ 45.00 — Granted — — Exercised — — Canceled — — Outstanding at September 27, 2024 934 $ 12.71 $ 45.00 3.45 — Exercisable at September 27, 2024 — $ — $ — — —
Schedule of Restricted Stock Awards	The following table summarizes the status of the Company’s non-vested restricted stock awards and deferred stock awards since June 28, 2024: Non-vested Restricted Stock Awards Number of Weighted Average Outstanding at June 28, 2024 1,526 $ 41.35 Granted 895 40.08 Vested (235) 44.61 Forfeited (63) 44.18 Outstanding at September 27, 2024 2,123 $ 40.31
Schedule of Stock-Based Compensation Expense	The following table presents share-based compensation expenses included in the Company’s Consolidated Statements of Operations and Comprehensive Loss: First Quarters Ended September 27, 2024 September 29, 2023 Cost of revenues $ 113 $ 816 Selling, general and administrative 4,611 1,761 Research and development 1,368 1,540 Stock-based compensation expense before tax 6,092 4,117 Income taxes (1) (1,645) (1,112) Stock-based compensation expense, net of income taxes $ 4,447 $ 3,005 (1) Federal and state statutory rate of 27%

Operating Segment, Geographic_2

Operating Segment, Geographic Information and Significant Customers (Tables)	3 Months Ended
	Sep. 27, 2024
Segment Reporting [Abstract]
Schedule of Geographic Distribution of Revenues and Revenue by Platform	The geographic distribution of the Company’s revenues as determined by country in which the Company's legal subsidiary is domiciled is summarized as follows: U.S. Europe Asia Pacific Eliminations Total FIRST QUARTER ENDED SEPTEMBER 27, 2024 Net revenues to unaffiliated customers $ 192,660 $ 11,771 $ — $ — $ 204,431 Inter-geographic revenues 2,055 2,819 — (4,874) — Net revenues $ 194,715 $ 14,590 $ — $ (4,874) $ 204,431 FIRST QUARTER ENDED SEPTEMBER 29, 2023 Net revenues to unaffiliated customers $ 171,881 $ 9,104 $ 6 $ — $ 180,991 Inter-geographic revenues 1,719 92 — (1,811) — Net revenues $ 173,600 $ 9,196 $ 6 $ (1,811) $ 180,991 The following table presents the Company's net revenue by end user for the periods presented: First Quarters Ended September 27, 2024 September 29, 2023 Domestic (1) $ 161,194 $ 146,467 International/Foreign Military Sales (2) 43,237 34,524 Total Net Revenue $ 204,431 $ 180,991 (1) Domestic revenues consist of sales where the end user is within the U.S., as well as sales to prime defense contractor customers where the ultimate end user location is not defined. (2) International/Foreign Military Sales consist of sales to U.S. prime defense contractor customers where the end user is outside the U.S., foreign military sales through the U.S. government, and direct sales to non-U.S. based customers intended for end use outside of the U.S. The following table presents the Company's net revenue by end application for the periods presented: First Quarters Ended September 27, 2024 September 29, 2023 Radar (1) $ 33,749 $ 26,703 Electronic Warfare (2) 26,346 24,466 Other Sensor & Effector (3) 26,366 21,166 Total Sensor & Effector 86,461 72,335 C4I (4) 85,280 90,238 Other (5) 32,690 18,418 Total Net Revenue $ 204,431 $ 180,991 (1) Radar includes end-use applications where radio frequency signals are utilized to detect, track and identify objects. (2) Electronic Warfare includes end-use applications comprising the offensive and defensive use of the electromagnetic spectrum. (3) Other Sensor and Effector products include all Sensor and Effector end markets other than Radar and Electronic Warfare. (4) C4I includes rugged secure rackmount servers that are designed to drive the most powerful military processing applications. (5) Other products include all component and other sales where the end use is not specified. The following table presents the Company's net revenue by product grouping for the periods presented: First Quarters Ended September 27, 2024 September 29, 2023 Components (1) $ 44,864 $ 37,509 Modules and Sub-assemblies (2) 45,822 37,533 Integrated Solutions (3) 113,745 105,949 Total Net Revenue $ 204,431 $ 180,991 (1) Components represent the basic building blocks of an electronic system. They generally perform a single function such as switching, storing or converting electronic signals. Some examples include power amplifiers and limiters, switches, oscillators, filters, equalizers, digital and analog converters, chips, MMICs (monolithic microwave integrated circuits) and memory and storage devices. (2) Modules and sub-assemblies combine multiple components to serve a range of complex functions, including processing, networking and graphics display. Typically delivered as computer boards or other packaging, modules and sub-assemblies are usually designed using open standards to provide interoperability when integrated in a subsystem. Examples of modules and sub-assemblies include embedded processing boards, switched fabrics and boards for high-speed input/output, digital receivers, graphics and video, along with multi-chip modules, integrated radio frequency and microwave multi-function assemblies and radio frequency tuners and transceivers. (3) Integrated solutions bring components, modules and/or sub-assemblies into one system, enabled with software. Subsystems are typically, but not always, integrated within an open standards-based chassis and often feature interconnect technologies to enable communication between disparate systems. Spares and replacement modules and sub-assemblies are provided for use with subsystems sold by the Company. The Company’s subsystems are deployed in sensor processing, aviation and mission computing and C4I applications. The following table presents the Company's net revenue by platform for the periods presented: First Quarters Ended September 27, 2024 September 29, 2023 Airborne (1) $ 90,490 $ 104,716 Land (2) 34,314 25,703 Naval (3) 20,653 21,143 Space (4) 15,359 6,063 Other (5) 43,615 23,366 Total Net Revenues $ 204,431 $ 180,991 (1) Airborne platform includes products that relate to personnel, equipment or pieces of equipment designed for airborne applications. (2) Land platform includes products that relate to fixed or mobile equipment, or pieces of equipment for personnel, weapon systems, vehicles and support elements operating on land. (3) Naval platform includes products that relate to personnel, equipment or pieces of equipment designed for naval operations. (4) Space platform includes products that relate to personnel, equipment or pieces of equipment designed for space operations. (5) All platforms other than Airborne, Land, Naval, or Space. The geographic distribution of the Company’s identifiable long-lived assets is summarized as follows: U.S. Europe Total September 27, 2024 $ 103,176 $ 1,883 $ 105,059 June 28, 2024 $ 107,655 $ 2,698 $ 110,353
Schedule of Revenue by Major Customers	Customers comprising 10% or more of the Company’s revenues for the periods shown are as follows: First Quarters Ended September 27, 2024 September 29, 2023 L3Harris 12 % 12 % Lockheed Martin Corporation 11 % 13 % RTX Corporation * 11 % 23 % 36 % * Indicates that the amount is less than 10% of the Company's revenue for the respective period.

Description of Business (Detail

Description of Business (Details)	Sep. 27, 2024 program country
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Number Of Deployed Programs	300
Number Of Countries With Deployed Programs | country	35
Number Of Company Locations	20

Summary of Significant Accoun_4

Summary of Significant Accounting Policies - Additional Information (Details) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended
	Sep. 27, 2024	Sep. 29, 2023	Aug. 13, 2024	Jun. 28, 2024	Jun. 21, 2023	Mar. 14, 2023	Sep. 27, 2022
Significant Accounting Policies [Line Items]
Limit on purchased receivables			$ 60,000		$ 60,000	$ 30,600	$ 20,000
Factored accounts receivables	$ 43,659	$ 28,826
Factoring fees	362	308
Accounts receivable, amount not received	18,835
Contract asset balances	298,270			$ 304,029
Gross Billing, Agent Transaction	117,865
Revenue, Performance Obligation Satisfied over Time	112,106
Contract liability balance	96,859			$ 74,367
Revenue recognized in the contract liability balance	26,411	$ 21,015
Remaining performance obligations	$ 765,775
Antidilutive securities excluded from computation of earnings per share (in shares)	2,694	1,912
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2023-12-30
Significant Accounting Policies [Line Items]
Remaining performance obligations, percentage	54%
Remaining performance obligations, period of satisfaction	12 months
Minimum
Significant Accounting Policies [Line Items]
Standard warranty period	12 months
Extended warranty period	12 months
Standard product warranty accrual term	12 months
Maximum
Significant Accounting Policies [Line Items]
Standard warranty period	36 months
Extended warranty period	36 months
Useful life of acquired assets	12 years 6 months
Standard product warranty accrual term	36 months
Transferred over Time
Significant Accounting Policies [Line Items]
Percentage of revenue recognized	55%	58%
Ship and bill
Significant Accounting Policies [Line Items]
Percentage of revenue recognized	45%	42%

Summary of Significant Accoun_5

Summary of Significant Accounting Policies (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended
	Sep. 27, 2024	Sep. 29, 2023
Significant Accounting Policies [Line Items]
Loss from operations	$ (8,293)	$ (16,463)
Net loss	$ (13,418)	$ (40,201)
Diluted (in shares)	58,260	57,105
Contracts Accounted for under Percentage of Completion
Significant Accounting Policies [Line Items]
Net loss	$ (6,054)	$ (12,018)
Diluted net loss per share (usd per share)	$ (0.10)	$ (0.21)

Summary of Significant Accoun_6

Summary of Significant Accounting Policies - Warranty (Details) $ in Thousands	3 Months Ended
	Sep. 27, 2024 USD ($)
Movement in Standard Product Warranty Accrual [Roll Forward]
Balance at June 28, 2024	$ 5,721
Accruals for warranties issued during the period	97
Settlements made during the period	(998)
Balance at September 27, 2024	$ 4,820

Summary of Significant Accoun_7

Summary of Significant Accounting Policies - Schedule of Weighted-Average Shares (Details) - shares shares in Thousands	3 Months Ended
	Sep. 27, 2024	Sep. 29, 2023
Accounting Policies [Abstract]
Basic weighted-average shares outstanding (in shares)	58,260	57,105
Effect of dilutive equity instruments (in shares)	0	0
Diluted weighted-average shares outstanding (in shares)	58,260	57,105

Fair Value of Financial Instr_3

Fair Value of Financial Instruments - Schedule of Financial Liabilities Measured at Fair Value on a Recurring Basis (Details) - Fair Value - Fair Value, Measurements, Recurring $ in Thousands	Sep. 27, 2024 USD ($)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total liabilities measured at fair value	$ 9,628
Interest rate swap | Swap Agreement
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total liabilities measured at fair value	9,628
Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total liabilities measured at fair value	0
Level 1 | Interest rate swap
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total liabilities measured at fair value	0
Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total liabilities measured at fair value	9,628
Level 2 | Interest rate swap
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total liabilities measured at fair value	9,628
Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total liabilities measured at fair value	0
Level 3 | Interest rate swap
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total liabilities measured at fair value	$ 0

Fair Value of Financial Instr_4

Fair Value of Financial Instruments - Additional Information (Details) - Fair Value - Fair Value, Measurements, Recurring - USD ($) $ in Thousands	Sep. 27, 2024	Jun. 28, 2024
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total liabilities measured at fair value	$ 9,628
Total assets measured at fair value		$ 2,436
Interest rate swap | Swap Agreement
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total liabilities measured at fair value	$ 9,628
Total assets measured at fair value		$ 2,436

Fair Value of Financial Instr_5

Fair Value of Financial Instruments - Schedule of Financial Assets Measured at Fair Value on a Recurring Basis (Details) - Fair Value - Fair Value, Measurements, Recurring $ in Thousands	Jun. 28, 2024 USD ($)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total assets measured at fair value	$ 2,436
Interest rate swap | Swap Agreement
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total assets measured at fair value	2,436
Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total assets measured at fair value	0
Level 1 | Interest rate swap
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total assets measured at fair value	0
Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total assets measured at fair value	2,436
Level 2 | Interest rate swap
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total assets measured at fair value	2,436
Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total assets measured at fair value	0
Level 3 | Interest rate swap
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total assets measured at fair value	$ 0

Inventory (Details)

Inventory (Details) - USD ($) $ in Thousands	Sep. 27, 2024	Jun. 28, 2024
Inventory Disclosure [Abstract]
Raw materials	$ 206,986	$ 200,501
Work in process	124,321	118,060
Finished goods	19,781	16,739
Total	$ 351,088	$ 335,300

Restructuring - Additional Info

Restructuring - Additional Information (Details) $ in Thousands	3 Months Ended
	Sep. 27, 2024 USD ($)
Workforce Reduction - January 2024 [Member]
Restructuring Cost and Reserve [Line Items]
Severance Costs	$ 2,260

Restructuring - Schedule of Cha

Restructuring - Schedule of Charges for Restructuring (Details) - USD ($) $ in Thousands	3 Months Ended
	Sep. 27, 2024	Sep. 29, 2023
Restructuring Reserve [Roll Forward]
Balance at June 28, 2024	$ 8,758
Restructuring charges	2,260	$ 9,546
Cash paid	(6,185)
Balance at September 27, 2024	$ 4,833

Income Taxes (Details)

Income Taxes (Details) - USD ($) $ in Thousands	3 Months Ended
	Sep. 27, 2024	Sep. 29, 2023
Income Tax Disclosure [Abstract]
Income tax benefit	$ (5,594)	$ (13,027)
Loss before income taxes	(23,119)	(49,735)
Tax provision for stock compensation shortfalls	$ 219	$ 1,215

Debt (Details)

Debt (Details) $ in Thousands		3 Months Ended
	Feb. 28, 2022	Sep. 27, 2024 USD ($)	Sep. 29, 2023 USD ($)	Aug. 13, 2024 USD ($)	Jun. 28, 2024 USD ($)	Dec. 29, 2023 USD ($)	Nov. 06, 2023
Debt Instrument [Line Items]
Deferred debt issuance cost, write-off		$ 714
Outstanding borrowings		591,500	$ 576,500		$ 591,500
Interest expense		8,906	$ 7,863
Outstanding letter of credit		$ 753
Revolving Credit Facility | Leverage Ratio
Debt Instrument [Line Items]
Debt instrument, measurement input		5.25					4.50
Revolving Credit Facility
Debt Instrument [Line Items]
Term of revolving credit facility	5 years
Maximum borrowing capacity		$ 750,000		$ 900,000
Line of credit facility, current borrowing capacity				$ 750,000
Term Loan
Debt Instrument [Line Items]
Debt issuance costs		5,108
Unamortized deferred financing costs		$ 2,249				$ 1,931

Employee Benefit Plan (Details)

Employee Benefit Plan (Details) - USD ($) $ in Thousands	3 Months Ended		12 Months Ended
	Sep. 27, 2024	Sep. 29, 2023	Jun. 28, 2024
Retirement Benefits [Abstract]
Plan net liability	$ 5,383
Net periodic benefit cost	232	$ 207
Plan net gain (loss)	54	56
Expected employer contributions	$ 959
Maximum percentage of eligible participant annual compensation available to match	6%
Capitalized stock-based matching compensation expense	$ 2,981		$ 2,901
Share-based matching contributions	4,432	$ 4,841
Deferred compensation plan assets	183
Other deferred compensation arrangements, liability, current and noncurrent	$ 183

Stock-Based Compensation - Addi

Stock-Based Compensation - Additional Information (Details) - USD ($) shares in Thousands, $ in Thousands				3 Months Ended
	Oct. 25, 2023	Aug. 15, 2023	Oct. 28, 2020	Sep. 27, 2024	Jun. 28, 2024
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Exercise price, percentage of fair value threshold				100%
Unrecognized compensation cost				$ 8,360
Allocation of recognized period costs, capitalized amount				$ 715	$ 456
Employee Stock
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Purchase price as a percentage of the lesser of the market value of such shares at either the beginning or the end of each nine-month offering period				85%
Offering period				6 months
Percentage of employee compensation that may be uses to purchase common stock through payroll deductions, maximum				10%
Issuance of common stock under employee stock purchase plan (in shares)				1
Stock Options
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Options exercised (in shares)				0
Options vested (in shares)				0
Award requisite service period				2 years 5 months 12 days
Stock options granted (in shares)				0
2018 Stock Incentive Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares authorized for issuance under stock incentive plan (in shares)				7,862
Number of additional shares authorized (in shares)	3,450		3,000
Shares available for future grant (in shares)				3,091,000
2018 Stock Incentive Plan | New Hire Option | Tranche One
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vested and exercisable period		3 years
2018 Stock Incentive Plan | New Hire Option | Tranche Two
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vested and exercisable period		3 years
2018 Stock Incentive Plan | New Hire Option | Tranche Three
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Expiration period		5 years
2018 Stock Incentive Plan | New Hire Option | Tranche Four
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Expiration period		5 years
2005 Stock Incentive Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of additional shares authorized (in shares)			2,000
Shares available for future grant (in shares)				948
2005 Stock Incentive Plan | Maximum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Term of stock option				7 years

Stock-Based Compensation - Sche

Stock-Based Compensation - Schedule of Option Activity (Details) - Stock Options - USD ($) $ / shares in Units, shares in Thousands	3 Months Ended
	Sep. 27, 2024	Jun. 28, 2024
Number of Shares
Outstanding at beginning of period (in shares)	934
Granted (in shares)	0
Exercised (in shares)	0
Cancelled (in shares)	0
Outstanding at end of period (in shares)	934
Exercisable (in shares)	0
Weighted Average Grant Date Fair Value
Outstanding at beginning of period (in usd per share)	$ 12.71
Granted (in usd per share)
Outstanding at end of period (in usd per share)	12.71
Exercisable (in usd per share)	0
Weighted Average Exercise Price
Outstanding at beginning of period (in usd per share)	45
Granted (in usd per share)	0
Exercised (usd per share)	0
Cancelled (usd per share)	0
Outstanding at end of period (in usd per share)	45
Exercisable (in usd per share)	$ 0
Weighted Average Remaining Contractual Term (Years)	3 years 5 months 12 days
Aggregate Intrinsic Value as of September 27, 2024	$ 0	$ 0

Stock-Based Compensation - Sc_2

Stock-Based Compensation - Schedule of Restricted Stock Awards (Details) - Restricted Stock shares in Thousands	3 Months Ended
	Sep. 27, 2024 $ / shares shares
Number of Shares
Outstanding at beginning of period (in shares) | shares	1,526
Granted (in shares) | shares	895
Vested (in shares) | shares	(235)
Forfeited (in shares) | shares	(63)
Outstanding at end of period (in shares) | shares	2,123
Weighted Average Grant Date Fair Value
Outstanding at beginning of period (in usd per share) | $ / shares	$ 41.35
Granted (in usd per share) | $ / shares	40.08
Vested (in usd per share) | $ / shares	44.61
Forfeited (in usd per share) | $ / shares	44.18
Outstanding at end of period (in usd per share) | $ / shares	$ 40.31

Stock-Based Compensation - Sc_3

Stock-Based Compensation - Schedule of Stock-Based Compensation Expenses (Details) - USD ($) $ in Thousands	3 Months Ended
	Sep. 27, 2024	Sep. 29, 2023
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock-based compensation expense before tax	$ 6,092	$ 4,117
Income taxes	(1,645)	(1,112)
Stock-based compensation expense, net of income taxes	4,447	3,005
Cost of revenues
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock-based compensation expense before tax	113	816
Selling, general and administrative
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock-based compensation expense before tax	4,611	1,761
Research and development
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock-based compensation expense before tax	$ 1,368	$ 1,540

Operating Segment, Geographic_3

Operating Segment, Geographic Information and Significant Customers - Schedule of Geographic Distribution of Revenues (Details) - USD ($) $ in Thousands	3 Months Ended
	Sep. 27, 2024	Sep. 29, 2023	Jun. 28, 2024
Segment Reporting, Revenue Reconciling Item [Line Items]
Net revenues	$ 204,431	$ 180,991
Identifiable long-lived assets	105,059		$ 110,353
Components
Segment Reporting, Revenue Reconciling Item [Line Items]
Net revenues	44,864	37,509
Modules and Sub-assemblies
Segment Reporting, Revenue Reconciling Item [Line Items]
Net revenues	45,822	37,533
Integrated Subsystems
Segment Reporting, Revenue Reconciling Item [Line Items]
Net revenues	113,745	105,949
Total Sensor & Effector
Segment Reporting, Revenue Reconciling Item [Line Items]
Net revenues	86,461	72,335
Radar
Segment Reporting, Revenue Reconciling Item [Line Items]
Net revenues	33,749	26,703
Electronic Warfare
Segment Reporting, Revenue Reconciling Item [Line Items]
Net revenues	26,346	24,466
Other Sensor & Effector
Segment Reporting, Revenue Reconciling Item [Line Items]
Net revenues	26,366	21,166
C4I
Segment Reporting, Revenue Reconciling Item [Line Items]
Net revenues	85,280	90,238
Other
Segment Reporting, Revenue Reconciling Item [Line Items]
Net revenues	32,690	18,418
Domestic
Segment Reporting, Revenue Reconciling Item [Line Items]
Net revenues	161,194	146,467
International/Foreign Military Sales
Segment Reporting, Revenue Reconciling Item [Line Items]
Net revenues	43,237	34,524
Inter-geographic revenues
Segment Reporting, Revenue Reconciling Item [Line Items]
Net revenues	(4,874)	(1,811)
U.S.
Segment Reporting, Revenue Reconciling Item [Line Items]
Net revenues	192,660	171,881
U.S. | Inter-geographic revenues
Segment Reporting, Revenue Reconciling Item [Line Items]
Net revenues	2,055	1,719
U.S. | Reportable Geographical Components
Segment Reporting, Revenue Reconciling Item [Line Items]
Net revenues	194,715	173,600
Identifiable long-lived assets	103,176		107,655
Europe
Segment Reporting, Revenue Reconciling Item [Line Items]
Net revenues	11,771	9,104
Europe | Inter-geographic revenues
Segment Reporting, Revenue Reconciling Item [Line Items]
Net revenues	2,819	92
Europe | Reportable Geographical Components
Segment Reporting, Revenue Reconciling Item [Line Items]
Net revenues	14,590	9,196
Identifiable long-lived assets	1,883		$ 2,698
Asia Pacific
Segment Reporting, Revenue Reconciling Item [Line Items]
Net revenues	0	6
Asia Pacific | Inter-geographic revenues
Segment Reporting, Revenue Reconciling Item [Line Items]
Net revenues	0	0
Asia Pacific | Reportable Geographical Components
Segment Reporting, Revenue Reconciling Item [Line Items]
Net revenues	$ 0	$ 6

Operating Segment, Geographic_4

Operating Segment, Geographic Information and Significant Customers - Schedule of Revenue By Platform (Details) - USD ($) $ in Thousands	3 Months Ended
	Sep. 27, 2024	Sep. 29, 2023
Revenue from External Customer [Line Items]
Net revenues	$ 204,431	$ 180,991
Airborne
Revenue from External Customer [Line Items]
Net revenues	90,490	104,716
Land
Revenue from External Customer [Line Items]
Net revenues	34,314	25,703
Naval
Revenue from External Customer [Line Items]
Net revenues	20,653	21,143
Other
Revenue from External Customer [Line Items]
Net revenues	$ 43,615	$ 23,366

Operating Segment, Geographic_5

Operating Segment, Geographic Information and Significant Customers - Schedule of Revenue by Major Customers (Details) - Revenue Benchmark - Customer Concentration Risk	3 Months Ended
	Sep. 27, 2024	Sep. 29, 2023
Major Customers
Revenue, Major Customer [Line Items]
Concentration risk, percentage	23%	36%
RTX Corporation
Revenue, Major Customer [Line Items]
Concentration risk, percentage		11%
L3Harris
Revenue, Major Customer [Line Items]
Concentration risk, percentage	12%
Lockheed Martin Corporation
Revenue, Major Customer [Line Items]
Concentration risk, percentage	11%	13%

Commitments And Contingencies (

Commitments And Contingencies (Details) - USD ($) $ in Thousands	Sep. 27, 2024	Jul. 26, 2023
Long-term Purchase Commitment [Line Items]
Loss contingency, estimate of possible loss		$ 14,100
Minimum
Long-term Purchase Commitment [Line Items]
Loss contingency, range of possible loss, portion not accrued		0
Maximum
Long-term Purchase Commitment [Line Items]
Loss contingency, range of possible loss, portion not accrued		$ 14,100
Non-cancelable purchase commitments
Long-term Purchase Commitment [Line Items]
Purchase commitments for less than one year	$ 120,574

Derivatives (Details)

Derivatives (Details) - USD ($) $ in Thousands	3 Months Ended
	Sep. 27, 2024	Jun. 28, 2024	Sep. 29, 2023	Sep. 29, 2022	Sep. 07, 2022
Derivative [Line Items]
Notional amount				$ 300,000
Derivative interest rate					3.79%
Long-term debt	$ 591,500	$ 591,500	$ 576,500
Amortized gain associated with derivative	$ 881
Swap Agreement
Derivative [Line Items]
Notional amount				$ 300,000
Derivative interest rate				4.66%
Swap
Derivative [Line Items]
Derivative asset				$ 7,403
Revolving Credit Facility
Derivative [Line Items]
Existing borrowing capacity				$ 511,500