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period Balance, end of period Stockholders' Equity Attributable to Noncontrolling Interest Weighted-average remaining lease term (in years): Weighted Average Remaining Lease Term [Abstract] Weighted Average Remaining Lease Term [Abstract] Scenario [Domain] Scenario [Domain] Schedule of Goodwill Schedule of Goodwill [Table Text Block] Adjustments to reconcile income from continuing operations to net cash provided by operating activities from continuing operations: Adjustments to Reconcile Net Income (Loss) to Cash Provided by (Used in) Operating Activities [Abstract] Total accounts receivable and unbilled receivables, net Accounts Receivable, after Allowance for Credit Loss, Noncurrent Subsequent Event Type [Axis] Subsequent Event Type [Axis] Operating lease cost (expense resulting from amortization of total lease payments) Operating Lease, Cost Computer equipment and software Computer Equipment [Member] Payments to acquire businesses, amount to be paid Payments to Acquire Businesses, Amount To Be Paid Payments to Acquire Businesses, Amount To Be Paid Deferred income taxes Deferred Income Tax Expense (Benefit) Florida Turbine Technologies, Inc. Florida Turbine Technologies, Inc. [Member] Florida Turbine Technologies, Inc. [Member] Fair Value Hierarchy and NAV [Domain] Fair Value Hierarchy and NAV [Domain] Net income (loss) attributable to Kratos Net income (loss) Pro forma net income attributable to Kratos Net Income (Loss) Attributable to Parent Grants and Exercises Under the Company's Option Plans Share-based Compensation Arrangement By Share-based Payment Award, Options, Grants in Period, Weighted Average Grant Date Fair Value and Exercises in Period, Total Intrinsic Value [Table Text Block] Share-based Compensation Arrangement By Share-based Payment Award, Options, Grants in Period, Weighted Average Grant Date Fair Value and Exercises in Period, Total Intrinsic Value [Table Text Block] Operating lease right-of-use assets Operating Lease, Right-of-Use Asset Net operating loss carryforwards Deferred Tax Assets, Operating Loss Carryforwards Accrued compensation Employee-related Liabilities, Current Income Statement Location [Axis] Income Statement Location [Axis] Accumulated Amortization Finite-Lived Intangible Assets, Accumulated Amortization Statistical Measurement [Domain] Statistical Measurement [Domain] Purchase price, in cash Disposal Group, Including Discontinued Operation, Consideration Entity Incorporation, State or Country Code Entity Incorporation, State or Country Code Additional paid-in capital Additional Paid in Capital, Common Stock Other assets Other Assets, Noncurrent FTT Inc FTT Inc [Member] FTT Inc [Member] Segments [Axis] Segments [Axis] Dividend yield (percent) Expected dividend yield (percent) Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Dividend Rate Retirement Benefits [Abstract] Retirement Benefits [Abstract] In orocess research and development In Process Research and Development [Member] Components of income (loss) from continuing operations before income taxes Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest [Abstract] Royalty Rate Measurement Input, Royalty Rate [Member] Measurement Input, Royalty Rate [Member] Entity File Number Entity File Number Redemption percentage Debt Instrument, Redemption Price, Percentage Common Stock: Common Stock, Number of Shares, Par Value and Other Disclosures [Abstract] Stock-based compensation APIC, Share-based Payment Arrangement, Increase for Cost Recognition Forfeited or expired, number of options (in shares) Share-based Compensation Arrangement by Share-based Payment Award, Options, Forfeitures and Expirations in Period Discontinued Operations Disposal Groups, Including Discontinued Operations, Disclosure [Text Block] Organization, Consolidation and Presentation of Financial Statements [Abstract] Organization, Consolidation and Presentation of Financial Statements [Abstract] Schedule of Revenue by Major Customers, by Reportiing Segments [Table] Schedule of Revenue by Major Customers, by Reporting Segments [Table] Valuation Approach and Technique [Domain] Valuation Approach and Technique [Domain] Variable 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Other than Options, Grants in Period Sales to the U.S. Government, percentage of total revenue (percent) Concentration Risk, Percentage Goodwill and Other Intangible Assets Goodwill and Intangible Assets Disclosure [Text Block] Property and Equipment, Net Property, Plant and Equipment, Policy [Policy Text Block] Proceeds from shares issued under equity plans Proceeds, Issuance of Shares, Share-based Payment Arrangement, Including Option Exercised Options outstanding at beginning of period, number of options (in shares) Options outstanding at end of period, number of options (in shares) Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Number Trade names Trade Names [Member] Debt Instrument [Axis] Debt Instrument [Axis] Commitments and Contingencies Commitments and Contingencies Disclosure [Text Block] Amortization of lease right-of-use assets Operating And Finance Lease, Right-of-Use Asset, Amortization Operating And Finance Lease, Right-of-Use Asset, Amortization Significant Accounting Policies Disclosure [Line Items] Significant Accounting Policies Disclosure [Line Items] [Line Items] for Significant Accounting Policies Disclosure [Table] Discount rate Business Combination, Contingent Consideration, Liability, Measurement Input Secured Debt Secured Debt [Member] Business combination, provisional information, initial accounting incomplete, adjustment, consideration transferred Business Combination, Provisional Information, Initial Accounting Incomplete, Adjustment, Consideration Transferred Income tax expense (benefit) Income tax (benefit) expense Discontinued Operation, Tax Effect of Discontinued Operation Operating lease liabilities arising from obtaining right-of-use assets Right-of-Use Asset Obtained in Exchange for Operating Lease Liability Inventoried costs Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Inventory Accrued interest Debt Instrument, Increase, Accrued Interest Business Acquisition, Pro Forma Information Business Acquisition, Pro Forma Information [Table Text Block] Schedule of Deferred Tax Assets and Liabilities Schedule of Deferred Tax Assets and Liabilities [Table Text Block] Maximum percentage of employee compensation eligible to purchase shares under ESPP (percent) Share-based Compensation Arrangement by Share-based Payment Award, Maximum Employee Subscription Rate Commitments and Contingencies Disclosure [Abstract] Commitments and Contingencies Disclosure [Abstract] Israeli NIS Prime Interest Israeli NIS Prime Interest [Member] Israeli NIS Prime Interest Schedule of Segment Reporting Information, by Segment [Table] Schedule of Segment Reporting Information, by Segment [Table] Remaining borrowing capacity Line of Credit Facility, Remaining Borrowing Capacity Number of operating segments Number of Operating Segments Indefinite-lived Intangible Assets, Major Class Name [Domain] Indefinite-lived Intangible Assets, Major Class Name [Domain] 2024 Lessee, Operating Lease, Liability, to be Paid, Year Three Long-term government contracts Receivables, Long-term Contracts or Programs Thereafter Finite-Lived Intangible Asset, Expected Amortization, after Year Five Allowance for Doubtful Accounts SEC Schedule, 12-09, Allowance, Credit Loss [Member] Foreign income taxes: Foreign Income Tax Expense (Benefit), Continuing Operations [Abstract] SEC Schedule, 12-09, Valuation Allowances and Reserves Type [Axis] SEC Schedule, 12-09, Valuation Allowances and Reserves Type [Axis] Prepaid expenses Prepaid Expense, Current Schedule of Disaggregation of Revenue Disaggregation of Revenue [Table Text Block] Restricted Stock Units Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares [Roll Forward] Intangible assets Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Finite-Lived Intangibles Tax credit carryforwards Deferred Tax Assets, Tax Credit Carryforwards Number of shares authorized (in shares) Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Authorized Operating lease - operating cash flows (fixed payments) Operating Lease, Payments T for C T for C [Member] T for C [Member] Research and Development Research and Development Expense, Policy [Policy Text Block] Purchase price Total consideration Business Combination, Consideration Transferred Total Federal Federal Income Tax Expense (Benefit), Continuing Operations Recovery of doubtful accounts Provisions Accounts Receivable, Credit Loss Expense (Reversal) Accounts payable Disposal Group, Including Discontinued Operation, Accounts Payable, Current Income from continuing operations (in dollars per share) Income (Loss) from Continuing Operations, Per Diluted Share Property, plant and equipment, net Finance Lease, Right-of-Use Asset, after Accumulated Amortization Operating lease liabilities Increase (Decrease) In Operating Lease Liabilities Increase (Decrease) In Operating Lease Liabilities Unrecognized Tax Benefits Reconciliation of Unrecognized Tax Benefits, Excluding Amounts Pertaining to Examined Tax Returns [Roll Forward] Deferred tax benefit from stock options exercised Deferred Tax Benefit from Stock Options Exercised Deferred Tax Benefit from Stock Options Exercised Total liabilities and stockholders’ equity Liabilities and Equity Technical Directions, Inc. Technical Directions, Inc. [Member] Technical Directions, Inc. [Member] Income (loss) from discontinued operations (in dollars per share) Income (Loss) from Discontinued Operations and Disposal of Discontinued Operations, Net of Tax, Per Diluted Share Billings in excess of costs and earnings on uncompleted contracts Contract with Customer, Liability, Current 2026 Lessee, Operating Lease, Liability, to be Paid, Year Five Exercised, weighted-average exercise price per share (in dollars per share) Share-based Compensation Arrangements by Share-based Payment Award, Options, Exercises in Period, Weighted Average Exercise Price Service revenues Service [Member] Contracts and backlog Contracts and Backlog [Member] Contracts and Backlog [Member] State and local income taxes: State and Local Income Tax Expense (Benefit), Continuing Operations [Abstract] Operating activities: Net Cash Provided by (Used in) Operating Activities, Continuing Operations [Abstract] Net Income (Loss) Per Common Share Earnings Per Share [Text Block] Minimum Minimum [Member] Gross profit Gross Profit 2023 Lessee, Operating Lease, Liability, to be Paid, Year Two Outstanding borrowings Long-term Line of Credit Selling, general and administrative expenses Selling, General and Administrative Expense Forfeited or expired, weighted average exercise price per share (in dollars per share) Share-based Compensation Arrangement by Share-based Payment Award, Options, Forfeitures and Expirations in Period, Weighted Average Exercise Price Debt issuance costs Debt Issuance Costs, Net Indefinite-lived Intangible Assets [Axis] Indefinite-lived Intangible Assets [Axis] Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Table] Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Table] Shares authorized (in shares) Preferred Stock, Shares Authorized Amortization percentage Line Of Credit, Amortization Percentage Line Of Credit, Amortization Percentage Proceeds from insurance Proceeds from Insurance Settlement, Investing Activities Business acquisition, percentage of voting Interests acquired Business Acquisition, Percentage of Voting Interests Acquired 2025 Long-Term Debt, Maturity, Year Four Issuance of common stock Stock Issued During Period, Value, New Issues Cash paid for acquisitions, net of cash acquired Payments to Acquire Businesses, Net of Cash Acquired Debt Debt Disclosure [Text Block] Schedule of Components of Income Tax Expense (Benefit) Schedule of Components of Income Tax Expense (Benefit) [Table Text Block] Senior Notes Senior Notes [Member] Noncontrolling interest Business Combination, Acquisition of Less than 100 Percent, Noncontrolling Interest, Fair Value Level 3 Fair Value, Inputs, Level 3 [Member] Leases Lessee, Leases [Policy Text Block] Accumulated depreciation and amortization Property, Plant, and Equipment and Finance Lease Right-of-Use Asset, Accumulated Depreciation and Amortization Issuance of common stock (in shares) Common stock sold (in shares) Stock Issued During Period, Shares, New Issues Number of reportable segments Number of Reportable Segments Foreign currency transaction gain (loss) Foreign Currency Transaction Gain (Loss), before Tax Disaggregation of Revenue [Line Items] Disaggregation of Revenue [Line Items] Total other expense, net Nonoperating Income (Expense) Contract with Customer, Basis of Pricing [Axis] Contract with Customer, Basis of Pricing [Axis] Commitments and contingencies Commitments and Contingencies Subsequent Event [Table] Subsequent Event [Table] Accumulated other comprehensive loss Accumulated Other Comprehensive Income (Loss), Net of Tax Entity Emerging Growth Company Entity Emerging Growth Company Allowance for doubtful accounts Accounts Receivable, Allowance for Credit Loss, Current Total number of awards outstanding (shares) Share-Based Compensation Arrangement By Share Based Payment Award, Options And Other Than Options, Outstanding Number Share-Based Compensation Arrangement By Share Based Payment Award, Options And Other Than Options, Outstanding Number Billed Billed Revenues [Member] Disposal Group Classification [Axis] Disposal Group Classification [Axis] Depreciation and Amortization of Leased Assets Depreciation and Amortization of Leased Assets Depreciation and Amortization of Leased Assets Auditor Name Auditor Name Cover [Abstract] Cover [Abstract] Finance Lease, Liability, Current, Statement of Financial Position [Extensible List] Finance Lease, Liability, Current, Statement of Financial Position [Extensible Enumeration] Cash and Cash Equivalents Cash and Cash Equivalents, Policy [Policy Text Block] Less: imputed interest Lessee, Operating Lease, Liability, Undiscounted Excess Amount CTT, Inc. CTT, Inc. [Member] CTT, Inc. Net operating cash flows of discontinued operations Cash Provided by (Used in) Operating Activities, Discontinued Operations Payment period Payments to Acquire Businesses, Payment Period Payments to Acquire Businesses, Payment Period Payment paid at close Payment to Acquire Business, Gross, Paid At Close Payment to Acquire Business, Gross, Paid At Close Operating Activities [Domain] Operating Activities [Domain] Consideration transferred, gross Business Combination, Consideration Transferred, Gross Business Combination, Consideration Transferred, Gross Business acquisition, equity interest issued or issuable, number of shares Business Acquisition, Equity Interest Issued or Issuable, Number of Shares Income tax receivable and payable Increase (Decrease) in Income Taxes Payable, Net of Income Taxes Receivable Less: imputed interest Finance Lease, Liability, Undiscounted Excess Amount Furniture and office equipment Office Equipment [Member] International Non-US Government [Member] Non-US Government [Member] Prepaid expenses Increase (Decrease) in Prepaid Expense Net assets acquired, excluding cash Business Combination, Recognized Identifiable Assets Acquired, Goodwill, and Liabilities Assumed, Less Noncontrolling Interest 2026 Finance Lease, Liability, to be Paid, Year Five Common Stock Common Stock [Member] Foreign Income (Loss) from Continuing Operations before Income Taxes, Foreign Operating income Total operating income Operating Income (Loss) Company's contributions to defined-contribution plans Defined Contribution Plan, Employer Discretionary Contribution Amount Proceeds from sale of assets Proceeds from Sale of Other Assets, Investing Activities Current portion of operating lease liabilities Operating Lease, Liability, Current Organization and Summary of Significant Accounting Policies Organization, Consolidation and Presentation of Financial Statements Disclosure and Significant Accounting Policies [Text Block] 2023 Finite-Lived Intangible Asset, Expected Amortization, Year Two Cosmic Advanced Engineering Solutions, Inc. Cosmic Advanced Engineering Solutions, Inc. [Member] Cosmic Advanced Engineering Solutions, Inc. Income (loss) from discontinued operations before income taxes Discontinued Operation, Income (Loss) from Discontinued Operation During Phase-out Period, before Income Tax Stock-based compensation Share-based Payment Arrangement, Noncash Expense Cash and cash equivalents Cash and Cash Equivalents, at Carrying Value Amendment Credit Agreement Amendment Credit Agreement [Member] Amendment Credit Agreement [Member] Effect of exchange rate changes on cash, cash equivalents and restricted cash Effect of Exchange Rate on Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents, Including Disposal Group and Discontinued Operations Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis] Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis] Depreciation and amortization expense Disposal Group, Including Discontinued Operation, Depreciation and Amortization Other current liabilities Other Liabilities, Current Valuation Approach and Technique [Axis] Valuation Approach and Technique [Axis] Cost plus fee Cost Plus Fee Contract [Member] Cost Plus Fee Contract [Member] Total liabilities Liabilities Unbilled Unbilled Revenues [Member] 2022 Finite-Lived Intangible Asset, Expected Amortization, Year One Granted, weighted-average exercise price per share (in dollars per share) Share-based Compensation Arrangements by Share-based Payment Award, Options, Grants in Period, Weighted Average Exercise Price Options outstanding, aggregate intrinsic value Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Intrinsic Value 7% Senior Notes due 2019 Seven Percent Senior Notes Due 2019 [Member] Seven Percent Senior Notes Due 2019 [Member] Consolidation Items [Axis] Consolidation Items [Axis] Measurement Input Type [Axis] Measurement Input Type [Axis] Operating loss carryforwards Operating Loss Carryforwards Shares issued (in shares) Common Stock, Shares, Issued Minimum annual employment threshold to qualify for ESPP Share-based Compensation Arrangement by Share-based Payment Award, Terms of Award, Minimum Annual Employment Share-based Compensation Arrangement by Share-based Payment Award, Terms of Award, Minimum Annual Employment Preferred Stock: Preferred Stock, Number of Shares, Par Value and Other Disclosures [Abstract] Entity Address, City or Town Entity Address, City or Town Eurodollar Rate Eurodollar [Member] Reacquisition price Debt Instrument, Repurchase Amount Non-cash financing and investing activities: Noncash Investing and Financing Items [Abstract] Schedule of Unrecognized Tax Benefits Roll Forward Schedule of Unrecognized Tax Benefits Roll Forward [Table Text Block] Valuation allowance Business Acquisition, Pro Forma Valuation Allowance Business Acquisition, Pro Forma Valuation Allowance Significant Accounting Policies Disclosure [Table] Significant Accounting Policies Disclosure [Table] Significant Accounting Policies Disclosure [Table] Risk-free interest rate, lower range (percent) Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Risk Free Interest Rate, Minimum 2022 Finance Lease, Liability, to be Paid, Year One Accrued compensation Increase (Decrease) in Employee Related Liabilities Increases related to acquisitions Unrecognized Tax Benefits, Increase Resulting from Acquisition Discontinued Operations and Disposal Groups [Abstract] Discontinued Operations and Disposal Groups [Abstract] Other income Other loss Disposal Group, Including Discontinued Operation, Other Income (Expense) Disposal Group, Including Discontinued Operation, Other Income (Expense) Net assets before noncontrolling interest Business Combination, Recognized Identifiable Assets Acquired, Goodwill, and Liabilities Assumed, Net Accumulated deficit Retained Earnings (Accumulated Deficit) Award term or expiration period Share-based Compensation Arrangement by Share-based Payment Award, Expiration Period Statement of Stockholders' Equity [Abstract] Statement of Stockholders' Equity [Abstract] Number of shares issued under the plan (in shares) Stock Issued During Period, Shares, Employee Stock Purchase Plans Entity Filer Category Entity Filer Category Indefinite-lived trade names Indefinite-lived Intangible Assets (Excluding Goodwill) Israel Debt Israel Debt [Member] Israel Debt 2023 Finance Lease, Liability, to be Paid, Year Two 6.5% Notes Six Point Five Percent Senior Secured Notes Due 2025 [Member] Six Point Five Percent Senior Secured Notes Due 2025 [Member] Finite-Lived Intangible Assets by Major Class [Axis] Finite-Lived Intangible Assets by Major Class [Axis] Total stockholders’ equity Balance, beginning of period Balance, end of period Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest Amendment Flag Amendment Flag Proceeds from the issuance of long-term debt Proceeds from Issuance of Long-term Debt Equity Components [Axis] Equity Components [Axis] Fair Value Disclosures [Abstract] Fair Value Disclosures [Abstract] Antidilutive Securities [Axis] Antidilutive Securities [Axis] Concentration Risk Type [Domain] Concentration Risk Type [Domain] Disaggregation of Revenue [Table] Disaggregation of Revenue [Table] Receivables Billing Status [Domain] Receivables Billing Status [Domain] Schedule of Segment Reporting Information, by Segment Schedule of Segment Reporting Information, by Segment [Table Text Block] Deferred Deferred Federal Income Tax Expense (Benefit) Unearned revenue Deferred Tax Liabilities, Unearned Revenue Deferred Tax Liabilities, Unearned Revenue Thereafter Lessee, Operating Lease, Liability, to be Paid, after Year Five Unrecognized deferred income taxes or foreign withholding taxes Deferred Tax Liability Not Recognized, Amount of Unrecognized Deferred Tax Liability, Undistributed Earnings of Foreign Subsidiaries Deferred tax asset Valuation Allowance, Deferred Tax Asset, Increase (Decrease), Amount Product and Service [Axis] Product and Service [Axis] Accrued expenses Disposal Group, Including Discontinued Operation, Accrued Liabilities, Current Allowance for Doubtful Accounts Accounts Receivable, Allowance for Credit Loss [Roll Forward] Schedule of Acquired Indefinite-Lived Intangible Assets Schedule of Acquired Indefinite-lived Intangible Assets by Major Class [Table Text Block] Par value (usd per share) Preferred Stock, Par or Stated Value Per Share Minimum weekly employment threshold to qualify for ESPP Share-based Compensation Arrangement by Share-based Payment Award, Terms of Award, Minimum Weekly Employment Share-based Compensation Arrangement by Share-based Payment Award, Terms of Award, Minimum Weekly Employment Entity Public Float Entity Public Float Documents Incorporated by Reference Documents Incorporated by Reference [Text Block] Amortization of deferred financing costs Amortization of Deferred Charges Short-term lease cost Short-term Lease, Cost Issuance of common stock for employee stock purchase plan, options and warrants (in shares) Shares Issued, Shares, Share-based Payment Arrangement, after Forfeiture Discontinued Operations, Disposed of by Sale Discontinued Operations, Disposed of by Sale [Member] Capital expenditures Payments for (Proceeds from) Productive Assets ESPP offering & expense recognition period Employee Stock Purchase Plan, Offering Period Employee Stock Purchase Plan, Offering Period Statement [Line Items] Statement [Line Items] SEC Schedule, 12-09, Valuation Allowances and Reserves [Domain] SEC Schedule, 12-09, Valuation Allowances and Reserves [Domain] Billings in excess of costs and earnings on uncompleted contracts Increase (Decrease) in Contract with Customer, Liability Weighted-Average Exercise Price per Share Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price [Abstract] Optimized Performance Machining, Inc. (OPM) Optimized Performance Machining, Inc. (OPM) [Member] Optimized Performance Machining, Inc. (OPM) Issuance of common stock for employee stock purchase plan, options and warrants Shares Issued, Value, Share-based Payment Arrangement, after Forfeiture Federal Domestic Tax Authority [Member] Debt Disclosure [Abstract] Debt Disclosure [Abstract] Purchase price of common stock as a percent of fair market value (percent) Share-based Compensation Arrangement by Share-based Payment Award, Purchase Price of Common Stock, Percent Property, Plant and Equipment, Type [Axis] Long-Lived Tangible Asset [Axis] Valuation allowance Deferred Tax Assets, Valuation Allowance Current liabilities of discontinued operations Current liabilities of discontinued operations Disposal Group, Including Discontinued Operation, Liabilities, Current Revenue Disposal Group, Including Discontinued Operation, Revenue Customer [Axis] Customer [Axis] Retirement Plans Retirement Benefits [Text Block] Stock awards granted (in shares) Granted, number of options (in shares) Share-based Compensation Arrangement by 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Valuation Allowance, Business Combination Proceeds from the issuance of common stock Proceeds from Issuance of Common Stock Total assets Total assets Assets Plan Name [Domain] Plan Name [Domain] Deferred tax liabilities: Components of Deferred Tax Liabilities [Abstract] Cash paid during the year for interest Interest Paid, Excluding Capitalized Interest, Operating Activities Geographical [Domain] Geographical [Domain] Redeemable Noncontrolling Interest Noncontrolling Interest [Member] Research and development expenses Research and Development Expense Schedule of Accounts, Notes, Loans and Financing Receivable Schedule of Accounts, Notes, Loans and Financing Receivable [Table Text Block] Contract with Customer, Basis of Pricing [Domain] Contract with Customer, Basis of Pricing [Domain] Revenue, remaining performance obligation, expected timing of satisfaction, period Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Period Tax credit carryforward, amount Tax Credit Carryforward, Amount Accounts, Notes, Loans and Financing Receivable [Line Items] Accounts, Notes, Loans and Financing Receivable [Line Items] Schedule of Long-term Debt Instruments [Table] Schedule of Long-term Debt Instruments [Table] Subsequent Event [Line Items] Subsequent Event [Line Items] Basic income and (loss) per common share attributable to Kratos: Earnings Per Share, Basic [Abstract] Basic (in shares) Weighted Average Number of Shares Outstanding, Basic Net income (loss) per common share (in dollars per share) Earnings Per Share, Diluted Segments [Domain] Segments [Domain] Repayment under credit facility and debt Repayments of Long-term Lines of Credit Net income (loss) Net Income (Loss) Attributable to Redeemable Noncontrolling Interest Net cash paid during the year for income taxes Income Taxes Paid, Net Nondeductible expense Effective Income Tax Rate Reconciliation, Nondeductible Expense, Amount Non-US Non-US [Member] Comprehensive income (loss) attributable to 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of Tax, Including Portion Attributable to Noncontrolling Interest Schedule of Income Tax Reconciliation Schedule of Effective Income Tax Rate Reconciliation [Table Text Block] Accounts payable Accounts Payable, Current Depreciation and amortization Depreciation, Depletion and Amortization Revenue, Major Customer [Line Items] Revenue, Major Customer [Line Items] Accumulated Other Comprehensive Income (Loss) AOCI Attributable to Parent [Member] Inventoried costs Increase (Decrease) in Inventories Contract assets Contract with Customer, Asset, after Allowance for Credit Loss Shares outstanding (in shares) Balance, beginning of period (in shares) Balance, end of period (in shares) Common Stock, Shares, Outstanding Debt Instrument, Premium Redemption Price, Percentage Debt Instrument, Premium Redemption Price, Percentage Debt Instrument, Premium Redemption Price, Percentage Continuing operations Continuing Operations [Member] Total costs Cost of Goods and Services Sold Sale of discontinued operations Proceeds from Divestiture of Businesses Entity Central Index Key Entity Central Index Key Interest expense, net Interest Expense (Income), Net Interest expense on debt and miscellaneous interest income Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items] Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items] Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] Total lease cost Lease, Cost Customer relationships Customer Relationships [Member] Significant Customers Concentration Risk Disclosure [Text Block] Deferred Tax Assets, Tax Deferred Expense Deferred Tax Assets, Tax Deferred Expense Fixed charge coverage ratio Line of Credit Facility, Covenant Terms, Minimum Percentage of Borrowing Base or Total Commitment Amount Line of Credit Facility, Covenant Terms, Minimum Percentage of Borrowing Base or Total Commitment Amount Unbilled receivables Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Assets, Unbilled Receivables Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Assets, Unbilled Receivables Other long-term liabilities Other Liabilities, Noncurrent Operating Activities [Axis] Operating Activities [Axis] Net cash flows of continuing operations Net Cash Provided by (Used in) Continuing Operations Debt Instrument [Line Items] Debt Instrument [Line Items] Trading Symbol Trading Symbol Contract liabilities, Net change Contract liabilities, net change Contract With Customer, Liability, Increase (Decrease) Contract With Customer, Liability, Increase (Decrease) Pro forma revenues Business Acquisition, Pro Forma Revenue Shares from stock options and awards Stock Options and Stock Awards [Member] Stock Options and Stock Awards [Member] Other Deferred Tax Liabilities, Other Other assets Increase (Decrease) in Other Operating Assets Unmanned Systems US Kratos Unmanned Systems [Member] Kratos Unmanned Systems [Member] Premium Debt Instrument, Unamortized Premium Gain on disposal of discontinued operations before income taxes Discontinued Operation, Gain (Loss) from Disposal of Discontinued Operation, before Income Tax Restricted stock issued and related taxes Restricted Stock, Value, Shares Issued Net of Tax Withholdings Line of Credit Facility [Table] Line of Credit Facility [Table] Impairment of Long-Lived Assets and Long-Lived Assets to Be Disposed Of Impairment or Disposal of Long-Lived Assets, Including Intangible Assets, Policy [Policy Text Block] Gross value Goodwill, Gross Long-term debt Long-term Debt, Excluding Current Maturities Schedule of Goodwill [Table] Schedule of Goodwill [Table] Deferred purchase consideration Business Combination, Consideration Transferred, Liabilities Incurred Stock-based compensation expense, amount recognized in the consolidated financial statements Share-based Payment Arrangement, Expense Provision for loss on contracts Provision for Loss on Contracts Options exercisable, weighted average remaining contractual term Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Weighted Average Remaining Contractual Term Net income (loss) Net income (loss) Net Income (Loss), Including Portion Attributable to Noncontrolling Interest New Credit Facility New Credit Facility [Member] New Credit Facility Schedule of Income before Income Tax, Domestic and Foreign Schedule of Income before Income Tax, Domestic and Foreign [Table Text Block] Total identifiable net liabilities assumed Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Liabilities Construction in progress Construction in Progress [Member] Working capital adjustments Working Capital Adjustments Working Capital Adjustments Cash, cash equivalents and restricted cash at beginning of year Cash, cash equivalents and restricted cash at end of year Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents Par value (in dollars per share) Common Stock, Par or Stated Value Per Share Officer’s compensation 162(m) limitation Effective Income Tax Rate Reconciliation, Officer’s Compensation 162(m) Limitation Effective Income Tax Rate Reconciliation, Officer’s Compensation 162(M) Limitation 5-D Systems, Inc 5-D Systems, Inc [Member] 5-D Systems, Inc Member Risk-free interest rate, upper range (percent) Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Risk Free Interest Rate, Maximum Statement of Comprehensive Income [Abstract] Statement of Comprehensive Income [Abstract] Current assets: Assets, Current [Abstract] Gross Value Finite-Lived Intangible Assets, Gross Final working capital settlement related expenses Disposal Group, Including Discontinued Operation, Related To Final Working Capital Settlement Related Expenses Disposal Group, Including Discontinued Operation, Related To Final Working Capital Settlement Related Expenses Acquired finite-lived intangible assets: Finite-Lived Intangible Assets, Net [Abstract] Assets of foreign subsidiaries Entity Wide Disclosure on Geographic Areas, Assets in Foreign Countries Entity Wide Disclosure on Geographic Areas, Assets in Foreign Countries Exercised, number of options (in shares) Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period Other comprehensive income (loss), net of tax Other Comprehensive Income (Loss), Net of Tax Accrued interest Interest Payable, Current Finance Lease, Right-of-Use Asset, Statement of Financial Position [Extensible List] Finance Lease, Right-of-Use Asset, Statement of Financial Position [Extensible Enumeration] Schedule of Disposal Groups, Including Discontinued Operations, Income Statement, Balance Sheet and Additional Disclosures Disposal Groups, Including Discontinued Operations [Table Text Block] Expiration of applicable statutes of limitations Unrecognized Tax Benefits, Reduction Resulting from Lapse of Applicable Statute of Limitations Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share [Table Text Block] 2026 Finite-Lived Intangible Asset, Expected Amortization, Year Five Fair Value of Financial Instruments Fair Value of Financial Instruments, Policy [Policy Text Block] Auditor Firm ID Auditor Firm ID Net cash used in investing activities from continuing operations Net Cash Provided by (Used in) Investing Activities Buildings and improvements Building and Building Improvements [Member] Changes in assets and liabilities, net of acquisitions: Increase (Decrease) in Operating Capital [Abstract] Vested, weighted-average grant date fair value (in dollars per share) Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period, Weighted Average Grant Date Fair Value Class of Stock [Domain] Class of Stock [Domain] Cash paid Payments to Acquire Businesses, Gross Herley Herley Industries Inc [Member] Herley Industries Inc [Member] Third, Fourth and Fifth Year Third, Fourth and Fifth Year [Member] Third, Fourth and Fifth Year Finance lease - cash paid for interest Finance Lease, Interest Payment on Liability Maximum borrowing capacity Line of Credit Facility, Maximum Borrowing Capacity Segment Reporting Information [Line Items] Segment Reporting Information [Line Items] Line of Credit Facility [Line Items] Line of Credit Facility [Line Items] Debt Instrument, Name [Domain] Debt Instrument, Name [Domain] Federal Funds Rate Fed Funds Effective Rate Overnight Index Swap Rate [Member] Other current assets Other Assets, Current Income tax at federal statutory rate Effective Income Tax Rate Reconciliation at Federal Statutory Income Tax Rate, Amount Income from continuing operations Income from continuing operations Income (Loss) from Continuing Operations, Net of Tax, Including Portion Attributable to Noncontrolling Interest Inventoried Costs Inventory, Policy [Policy Text Block] Current Current Foreign Tax Expense (Benefit) Finance lease right of use assets Finance Lease, Right-of-Use Asset, before Accumulated Amortization Developed technology and technical know-how Developed Technology Rights [Member] Concentration Risk Benchmark [Axis] Concentration Risk Benchmark [Axis] Increase in reserve for uncertain tax positions Effective Income Tax Rate Reconciliation, Tax Contingency, Amount Assumptions and Resulting Fair Values of Options Granted Schedule of Share-based Payment Award, Employee Stock Purchase Plan, Valuation Assumptions [Table Text Block]