$MRCY
MERCURY SYSTEMS INC Stock $mrcy

$mrcy Overview Financials Valuation SEC Filings Company Website

2021 Q3 Form 10-K Financial Statement

#000104952121000032 Filed on August 17, 2021

Income Statement

Concept	2021 Q3	2021	2020 Q3
Revenue	$250.8M	$924.0M	$217.4M
YoY Change	15.38%	15.99%	22.61%
Cost Of Revenue	$148.1M	$538.8M	$120.8M
YoY Change	22.57%	22.52%	22.14%
Gross Profit	$102.8M	$385.2M	$96.60M
YoY Change	6.4%	7.94%	23.21%
Gross Profit Margin	40.97%	41.69%	44.43%
Selling, General & Admin	$31.59M	$134.3M	$35.50M
YoY Change	-11.02%	1.58%	18.45%
% of Gross Profit	30.73%	34.88%	36.75%
Research & Development	$27.72M	$113.5M	$27.00M
YoY Change	2.66%	15.23%	23.46%
% of Gross Profit	26.97%	29.46%	27.95%
Depreciation & Amortization	$20.88M	$67.08M	$12.70M
YoY Change	64.43%	35.99%	11.59%
% of Gross Profit	20.32%	17.42%	13.15%
Operating Expenses	$72.39M	$304.2M	$70.20M
YoY Change	3.11%	14.45%	15.23%
Operating Profit	$22.41M	$81.00M	$26.40M
YoY Change	-15.13%	-11.05%	51.06%
Interest Expense	-$587.0K	$1.222M	-$800.0K
YoY Change	-26.63%	21.47%
% of Operating Profit	-2.62%	1.51%	-3.03%
Other Income/Expense, Net	-$758.0K	-$2.785M	$1.600M
YoY Change	-147.38%	-261.36%	-211.58%
Pretax Income	$21.06M	$77.17M	$27.00M
YoY Change	-22.0%	-17.84%	56.71%
Income Tax	$3.136M	$15.13M	-$200.0K
% Of Pretax Income	14.89%	19.6%	-0.74%
Net Earnings	$17.93M	$62.04M	$27.20M
YoY Change	-34.1%	-27.61%	41.32%
Net Earnings / Revenue	7.15%	6.71%	12.51%
Basic Earnings Per Share	$0.32	$1.13
Diluted Earnings Per Share	$0.32	$1.12	$492.8K
COMMON SHARES
Basic Shares Outstanding	56.23M shares	55.07M shares	55.64M shares
Diluted Shares Outstanding		55.47M shares

Balance Sheet

Concept	2021 Q3	2021	2020 Q3
SHORT-TERM ASSETS
Cash & Short-Term Investments	$113.8M	$113.8M	$226.8M
YoY Change	-49.81%	-49.81%	40.61%
Cash & Equivalents	$113.8M	$113.8M	$226.8M
Short-Term Investments
Other Short-Term Assets	$15.89M	$15.89M	$19.10M
YoY Change	-16.79%	-16.79%	20.89%
Inventory	$221.6M	$221.6M	$178.1M
Prepaid Expenses
Receivables	$128.8M	$291.7M	$120.4M
Other Receivables	$0.00	$0.00	$0.00
Total Short-Term Assets	$643.1M	$643.1M	$634.8M
YoY Change	1.31%	1.31%	26.19%
LONG-TERM ASSETS
Property, Plant & Equipment	$128.5M	$194.9M	$87.74M
YoY Change	46.49%	31.33%	33.04%
Goodwill	$804.9M		$614.1M
YoY Change	31.08%		-0.5%
Intangibles	$307.6M		$208.7M
YoY Change	47.34%		-9.31%
Long-Term Investments
YoY Change
Other Assets	$4.675M	$4.675M	$4.777M
YoY Change	-2.14%	-2.6%	-22.84%
Total Long-Term Assets	$1.312B	$1.312B	$976.0M
YoY Change	34.44%	34.44%	0.53%
TOTAL ASSETS
Total Short-Term Assets	$643.1M	$643.1M	$634.8M
Total Long-Term Assets	$1.312B	$1.312B	$976.0M
Total Assets	$1.955B	$1.955B	$1.611B
YoY Change	21.38%	21.38%	9.29%
SHORT-TERM LIABILITIES
YoY Change
Accounts Payable	$47.95M	$47.95M	$41.88M
YoY Change	14.5%	14.44%	19.85%
Accrued Expenses	$24.65M	$64.69M	$23.79M
YoY Change	3.61%	-0.62%	9.44%
Deferred Revenue	$38.18M		$18.97M
YoY Change	101.21%
Short-Term Debt	$0.00	$0.00	$0.00
YoY Change
Long-Term Debt Due
YoY Change
Total Short-Term Liabilities	$150.8M	$150.8M	$125.9M
YoY Change	19.78%	19.8%	33.85%
LONG-TERM LIABILITIES
Long-Term Debt	$200.0M	$200.0M	$0.00
YoY Change
Other Long-Term Liabilities	$12.38M	$91.36M	$15.03M
YoY Change	-17.63%	6.11%	22.82%
Total Long-Term Liabilities	$12.38M	$291.4M	$15.03M
YoY Change	-17.63%	238.39%	22.82%
TOTAL LIABILITIES
Total Short-Term Liabilities	$150.8M	$150.8M	$125.9M
Total Long-Term Liabilities	$12.38M	$291.4M	$15.03M
Total Liabilities	$471.0M	$471.0M	$225.9M
YoY Change	108.46%	108.5%	26.52%
SHAREHOLDERS EQUITY
Retained Earnings	$374.5M		$312.5M
YoY Change	19.86%		27.02%
Common Stock	$552.0K		$547.0K
YoY Change	0.91%		0.37%
Preferred Stock
YoY Change
Treasury Stock (at cost)
YoY Change
Treasury Stock Shares
Shareholders Equity	$1.484B	$1.484B	$1.385B
YoY Change
Total Liabilities & Shareholders Equity	$1.955B	$1.955B	$1.611B
YoY Change	21.38%	21.38%	9.29%

Cashflow Statement

Concept	2021 Q3	2021	2020 Q3
OPERATING ACTIVITIES
Net Income	$17.93M	$62.04M	$27.20M
YoY Change	-34.1%	-27.61%	41.32%
Depreciation, Depletion And Amortization	$20.88M	$67.08M	$12.70M
YoY Change	64.43%	35.99%	11.59%
Cash From Operating Activities	$27.15M	$97.25M	$28.70M
YoY Change	-5.41%	-15.57%	18.06%
INVESTING ACTIVITIES
Capital Expenditures	-$10.90M	$45.60M	-$11.50M
YoY Change	-5.23%	5.32%	-219.85%
Acquisitions		$372.8M
YoY Change		286.34%
Other Investing Activities	-$67.59M	-$1.538M	$0.00
YoY Change			-100.0%
Cash From Investing Activities	-$78.49M	-$416.9M	-$11.50M
YoY Change	582.5%	207.7%	-89.16%
FINANCING ACTIVITIES
Cash Dividend Paid
YoY Change
Common Stock Issuance & Retirement, Net		$66.00K
YoY Change		-99.59%
Debt Paid & Issued, Net
YoY Change
Cash From Financing Activities	43.13M	$206.2M	-197.6M
YoY Change	-121.83%	-1986.47%	1257.24%
NET CHANGE
Cash From Operating Activities	27.15M	$97.25M	28.70M
Cash From Investing Activities	-78.49M	-$416.9M	-11.50M
Cash From Financing Activities	43.13M	$206.2M	-197.6M
Net Change In Cash	-8.211M	-$113.0M	-180.4M
YoY Change	-95.45%	263.41%	86.69%
FREE CASH FLOW
Cash From Operating Activities	$27.15M	$97.25M	$28.70M
Capital Expenditures	-$10.90M	$45.60M	-$11.50M
Free Cash Flow	$38.05M	$51.65M	$40.20M
YoY Change	-5.36%	-28.16%	173.19%

Facts In Submission

Frame	Concept Type	Concept / XBRL Key	Value	Unit
CY2021	dei	Amendment Flag AmendmentFlag	false
CY2021	dei	Document Fiscal Year Focus DocumentFiscalYearFocus	2021
CY2021	dei	Document Fiscal Period Focus DocumentFiscalPeriodFocus	FY
CY2021	dei	Entity Central Index Key EntityCentralIndexKey	0001049521
CY2021	dei	Current Fiscal Year End Date CurrentFiscalYearEndDate	--07-02
CY2021Q3	dei	Entity Common Stock Shares Outstanding EntityCommonStockSharesOutstanding	56234113	shares
CY2021Q1	dei	Entity Public Float EntityPublicFloat	4800000000	USD
CY2021Q3	us-gaap	Allowance For Doubtful Accounts Receivable Current AllowanceForDoubtfulAccountsReceivableCurrent	1451000	USD
CY2020Q3	us-gaap	Allowance For Doubtful Accounts Receivable Current AllowanceForDoubtfulAccountsReceivableCurrent	1228000	USD
CY2021Q3	us-gaap	Preferred Stock Par Or Stated Value Per Share PreferredStockParOrStatedValuePerShare	0.01
CY2020Q3	us-gaap	Preferred Stock Par Or Stated Value Per Share PreferredStockParOrStatedValuePerShare	0.01
CY2021Q3	us-gaap	Preferred Stock Shares Authorized PreferredStockSharesAuthorized	1000000	shares
CY2020Q3	us-gaap	Preferred Stock Shares Authorized PreferredStockSharesAuthorized	1000000	shares
CY2021Q3	us-gaap	Preferred Stock Shares Issued PreferredStockSharesIssued	0	shares
CY2020Q3	us-gaap	Preferred Stock Shares Issued PreferredStockSharesIssued	0	shares
CY2021Q3	us-gaap	Preferred Stock Shares Outstanding PreferredStockSharesOutstanding	0	shares
CY2020Q3	us-gaap	Preferred Stock Shares Outstanding PreferredStockSharesOutstanding	0	shares
CY2021Q3	us-gaap	Common Stock Par Or Stated Value Per Share CommonStockParOrStatedValuePerShare	0.01
CY2020Q3	us-gaap	Common Stock Par Or Stated Value Per Share CommonStockParOrStatedValuePerShare	0.01
CY2021Q3	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	85000000	shares
CY2020Q3	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	85000000	shares
CY2021Q3	us-gaap	Common Stock Shares Issued CommonStockSharesIssued	54702322	shares
CY2020Q3	us-gaap	Common Stock Shares Issued CommonStockSharesIssued	54247532	shares
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CY2020Q3	us-gaap	Common Stock Shares Outstanding CommonStockSharesOutstanding	54247532	shares
CY2018Q2	us-gaap	Restricted Cash And Cash Equivalents Noncurrent RestrictedCashAndCashEquivalentsNoncurrent	0	USD
CY2018Q2	us-gaap	Accumulated Other Comprehensive Income Loss Available For Sale Securities Adjustment Net Of Tax AccumulatedOtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax	0	USD
CY2021Q3	us-gaap	Operating Lease Liability Current Statement Of Financial Position Extensible List OperatingLeaseLiabilityCurrentStatementOfFinancialPositionExtensibleList	http://fasb.org/us-gaap/2021-01-31#AccruedLiabilitiesCurrent
CY2020Q3	us-gaap	Operating Lease Liability Current Statement Of Financial Position Extensible List OperatingLeaseLiabilityCurrentStatementOfFinancialPositionExtensibleList	http://fasb.org/us-gaap/2021-01-31#AccruedLiabilitiesCurrent
CY2016Q2	us-gaap	Debt Instrument Term DebtInstrumentTerm	P5Y
CY2020	us-gaap	Number Of Reportable Segments NumberOfReportableSegments	1	segment
CY2021	dei	Document Type DocumentType	10-K
CY2021	dei	Document Annual Report DocumentAnnualReport	true
CY2021	dei	Document Period End Date DocumentPeriodEndDate	2021-07-02
CY2021	dei	Document Period End Date DocumentPeriodEndDate	2021-07-02
CY2021	dei	Entity Emerging Growth Company EntityEmergingGrowthCompany	false
CY2021	dei	Document Transition Report DocumentTransitionReport	false
CY2021	dei	Entity File Number EntityFileNumber	0-23599
CY2021	dei	Entity Registrant Name EntityRegistrantName	MERCURY SYSTEMS, INC
CY2021	dei	Entity Incorporation State Country Code EntityIncorporationStateCountryCode	MA
CY2021	dei	Entity Tax Identification Number EntityTaxIdentificationNumber	04-2741391
CY2021	dei	Entity Address Address Line1 EntityAddressAddressLine1	50 Minuteman Road
CY2021	dei	Entity Address Postal Zip Code EntityAddressPostalZipCode	01810
CY2021	dei	Entity Address City Or Town EntityAddressCityOrTown	Andover
CY2021	dei	Entity Address State Or Province EntityAddressStateOrProvince	MA
CY2021	dei	City Area Code CityAreaCode	978
CY2021	dei	Local Phone Number LocalPhoneNumber	256-1300
CY2021	dei	Security12b Title Security12bTitle	Common Stock, Par Value $0.01 Per Share
CY2021	dei	Trading Symbol TradingSymbol	MRCY
CY2021	dei	Security Exchange Name SecurityExchangeName	NASDAQ
CY2021	dei	Entity Well Known Seasoned Issuer EntityWellKnownSeasonedIssuer	Yes
CY2021	dei	Entity Voluntary Filers EntityVoluntaryFilers	No
CY2021	dei	Entity Current Reporting Status EntityCurrentReportingStatus	Yes
CY2021	dei	Entity Interactive Data Current EntityInteractiveDataCurrent	Yes
CY2021	dei	Entity Filer Category EntityFilerCategory	Large Accelerated Filer
CY2021	dei	Entity Small Business EntitySmallBusiness	false
CY2021	dei	Icfr Auditor Attestation Flag IcfrAuditorAttestationFlag	false
CY2021	dei	Entity Shell Company EntityShellCompany	false
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CY2021Q3	us-gaap	Goodwill Goodwill	804906000	USD
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CY2021Q3	us-gaap	Commitments And Contingencies CommitmentsAndContingencies		USD
CY2020Q3	us-gaap	Commitments And Contingencies CommitmentsAndContingencies		USD
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CY2019	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	47831000	shares
CY2021	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	55474000	shares
CY2020	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	55115000	shares
CY2019	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	48500000	shares
CY2021	us-gaap	Net Income Loss NetIncomeLoss	62044000	USD
CY2020	us-gaap	Net Income Loss NetIncomeLoss	85712000	USD
CY2019	us-gaap	Net Income Loss NetIncomeLoss	46775000	USD
CY2021	us-gaap	Other Comprehensive Income Loss Foreign Currency Transaction And Translation Adjustment Net Of Tax OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax	-739000	USD
CY2020	us-gaap	Other Comprehensive Income Loss Foreign Currency Transaction And Translation Adjustment Net Of Tax OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax	174000	USD
CY2019	us-gaap	Other Comprehensive Income Loss Foreign Currency Transaction And Translation Adjustment Net Of Tax OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax	-232000	USD
CY2021	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Adjustment Net Of Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax	-3285000	USD
CY2020	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Adjustment Net Of Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax	1768000	USD
CY2019	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Adjustment Net Of Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax	2350000	USD
CY2021	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	2546000	USD
CY2020	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	-1594000	USD
CY2019	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	-2582000	USD
CY2021	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	64590000	USD
CY2020	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	84118000	USD
CY2019	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	44193000	USD
CY2018Q2	us-gaap	Stockholders Equity StockholdersEquity	771891000	USD
CY2019	us-gaap	Stock Issued During Period Value Share Based Compensation StockIssuedDuringPeriodValueShareBasedCompensation	0	USD
CY2019	us-gaap	Stock Issued During Period Value Employee Stock Purchase Plan StockIssuedDuringPeriodValueEmployeeStockPurchasePlan	3661000	USD
CY2019	us-gaap	Stock Repurchased And Retired During Period Value StockRepurchasedAndRetiredDuringPeriodValue	7968000	USD
CY2019	us-gaap	Stock Issued During Period Value New Issues StockIssuedDuringPeriodValueNewIssues	453573000	USD
CY2019	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	19389000	USD
CY2019	us-gaap	Net Income Loss NetIncomeLoss	46775000	USD
CY2019Q2	us-gaap	Stockholders Equity StockholdersEquity	1284739000	USD
CY2020	us-gaap	Stock Issued During Period Value Share Based Compensation StockIssuedDuringPeriodValueShareBasedCompensation	5000	USD
CY2020	us-gaap	Stock Issued During Period Value Employee Stock Purchase Plan StockIssuedDuringPeriodValueEmployeeStockPurchasePlan	5312000	USD
CY2020	us-gaap	Stock Repurchased And Retired During Period Value StockRepurchasedAndRetiredDuringPeriodValue	16249000	USD
CY2020	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	26859000	USD
CY2020	us-gaap	Net Income Loss NetIncomeLoss	85712000	USD
CY2020Q3	us-gaap	Stockholders Equity StockholdersEquity	1384784000	USD
CY2021	us-gaap	Stock Issued During Period Value Share Based Compensation StockIssuedDuringPeriodValueShareBasedCompensation	14000	USD
CY2021	us-gaap	Stock Issued During Period Value Employee Stock Purchase Plan StockIssuedDuringPeriodValueEmployeeStockPurchasePlan	6281000	USD
CY2021	us-gaap	Stock Repurchased And Retired During Period Value StockRepurchasedAndRetiredDuringPeriodValue	66000	USD
CY2021	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	28543000	USD
CY2021	us-gaap	Net Income Loss NetIncomeLoss	62044000	USD
CY2021Q3	us-gaap	Stockholders Equity StockholdersEquity	1484146000	USD
CY2021	us-gaap	Net Income Loss NetIncomeLoss	62044000	USD
CY2020	us-gaap	Net Income Loss NetIncomeLoss	85712000	USD
CY2019	us-gaap	Net Income Loss NetIncomeLoss	46775000	USD
CY2021	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	67083000	USD
CY2020	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	49330000	USD
CY2019	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	46392000	USD
CY2021	us-gaap	Share Based Compensation ShareBasedCompensation	28290000	USD
CY2020	us-gaap	Share Based Compensation ShareBasedCompensation	26538000	USD
CY2019	us-gaap	Share Based Compensation ShareBasedCompensation	19422000	USD
CY2021	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	-1125000	USD
CY2020	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	-3019000	USD
CY2019	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	-1557000	USD
CY2021	us-gaap	Gain Loss On Investments GainLossOnInvestments	0	USD
CY2020	us-gaap	Gain Loss On Investments GainLossOnInvestments	5817000	USD
CY2019	us-gaap	Gain Loss On Investments GainLossOnInvestments	0	USD
CY2021	us-gaap	Derivative Gain Loss On Derivative Net DerivativeGainLossOnDerivativeNet	0	USD
CY2020	us-gaap	Derivative Gain Loss On Derivative Net DerivativeGainLossOnDerivativeNet	0	USD
CY2019	us-gaap	Derivative Gain Loss On Derivative Net DerivativeGainLossOnDerivativeNet	-5420000	USD
CY2021	us-gaap	Other Noncash Income Expense OtherNoncashIncomeExpense	-3745000	USD
CY2020	us-gaap	Other Noncash Income Expense OtherNoncashIncomeExpense	-3509000	USD
CY2019	us-gaap	Other Noncash Income Expense OtherNoncashIncomeExpense	-3779000	USD
CY2021	us-gaap	Increase Decrease In Accounts Receivable IncreaseDecreaseInAccountsReceivable	51981000	USD
CY2020	us-gaap	Increase Decrease In Accounts Receivable IncreaseDecreaseInAccountsReceivable	31079000	USD
CY2019	us-gaap	Increase Decrease In Accounts Receivable IncreaseDecreaseInAccountsReceivable	28096000	USD
CY2021	us-gaap	Increase Decrease In Inventories IncreaseDecreaseInInventories	27441000	USD
CY2020	us-gaap	Increase Decrease In Inventories IncreaseDecreaseInInventories	31609000	USD
CY2019	us-gaap	Increase Decrease In Inventories IncreaseDecreaseInInventories	17101000	USD
CY2021	us-gaap	Increase Decrease In Prepaid Taxes IncreaseDecreaseInPrepaidTaxes	-1703000	USD
CY2020	us-gaap	Increase Decrease In Prepaid Taxes IncreaseDecreaseInPrepaidTaxes	2792000	USD
CY2019	us-gaap	Increase Decrease In Prepaid Taxes IncreaseDecreaseInPrepaidTaxes	-3843000	USD
CY2021	us-gaap	Increase Decrease In Prepaid Deferred Expense And Other Assets IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets	-1718000	USD
CY2020	us-gaap	Increase Decrease In Prepaid Deferred Expense And Other Assets IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets	2116000	USD
CY2019	us-gaap	Increase Decrease In Prepaid Deferred Expense And Other Assets IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets	1075000	USD
CY2021	us-gaap	Increase Decrease In Other Noncurrent Assets IncreaseDecreaseInOtherNoncurrentAssets	-5459000	USD
CY2021	us-gaap	Increase Decrease In Accounts Payable And Accrued Liabilities IncreaseDecreaseInAccountsPayableAndAccruedLiabilities	-6315000	USD
CY2020	us-gaap	Increase Decrease In Other Noncurrent Assets IncreaseDecreaseInOtherNoncurrentAssets	1260000	USD
CY2019	us-gaap	Increase Decrease In Other Noncurrent Assets IncreaseDecreaseInOtherNoncurrentAssets	-101000	USD
CY2020	us-gaap	Increase Decrease In Accounts Payable And Accrued Liabilities IncreaseDecreaseInAccountsPayableAndAccruedLiabilities	13610000	USD
CY2019	us-gaap	Increase Decrease In Accounts Payable And Accrued Liabilities IncreaseDecreaseInAccountsPayableAndAccruedLiabilities	17949000	USD
CY2021	us-gaap	Increase Decrease In Contract With Customer Liability IncreaseDecreaseInContractWithCustomerLiability	13731000	USD
CY2020	us-gaap	Increase Decrease In Contract With Customer Liability IncreaseDecreaseInContractWithCustomerLiability	7082000	USD
CY2019	us-gaap	Increase Decrease In Contract With Customer Liability IncreaseDecreaseInContractWithCustomerLiability	-1531000	USD
CY2021	us-gaap	Increase Decrease In Accrued Income Taxes Payable IncreaseDecreaseInAccruedIncomeTaxesPayable	4080000	USD
CY2020	us-gaap	Increase Decrease In Accrued Income Taxes Payable IncreaseDecreaseInAccruedIncomeTaxesPayable	-131000	USD
CY2019	us-gaap	Increase Decrease In Accrued Income Taxes Payable IncreaseDecreaseInAccruedIncomeTaxesPayable	3152000	USD
CY2021	us-gaap	Increase Decrease In Other Noncurrent Liabilities IncreaseDecreaseInOtherNoncurrentLiabilities	-3744000	USD
CY2020	us-gaap	Increase Decrease In Other Noncurrent Liabilities IncreaseDecreaseInOtherNoncurrentLiabilities	7226000	USD
CY2019	us-gaap	Increase Decrease In Other Noncurrent Liabilities IncreaseDecreaseInOtherNoncurrentLiabilities	44000	USD
CY2021	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	97247000	USD
CY2020	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	115184000	USD
CY2019	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	97517000	USD
CY2020	us-gaap	Payments To Acquire Businesses Net Of Cash Acquired PaymentsToAcquireBusinessesNetOfCashAcquired	96502000	USD
CY2019	us-gaap	Payments To Acquire Businesses Net Of Cash Acquired PaymentsToAcquireBusinessesNetOfCashAcquired	127083000	USD
CY2021	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	45599000	USD
CY2021	us-gaap	Payments To Acquire Businesses Net Of Cash Acquired PaymentsToAcquireBusinessesNetOfCashAcquired	372826000	USD
CY2020	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	43294000	USD
CY2019	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	26691000	USD
CY2021	us-gaap	Proceeds From Sale Of Equity Method Investments ProceedsFromSaleOfEquityMethodInvestments	1538000	USD
CY2020	us-gaap	Proceeds From Sale Of Equity Method Investments ProceedsFromSaleOfEquityMethodInvestments	4310000	USD
CY2019	us-gaap	Proceeds From Sale Of Equity Method Investments ProceedsFromSaleOfEquityMethodInvestments	0	USD
CY2021	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-416887000	USD
CY2020	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-135486000	USD
CY2019	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-153774000	USD
CY2021	us-gaap	Proceeds From Stock Options Exercised ProceedsFromStockOptionsExercised	6295000	USD
CY2020	us-gaap	Proceeds From Stock Options Exercised ProceedsFromStockOptionsExercised	5317000	USD
CY2019	us-gaap	Proceeds From Stock Options Exercised ProceedsFromStockOptionsExercised	3661000	USD
CY2021	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	66000	USD
CY2020	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	16249000	USD
CY2019	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	7968000	USD
CY2021	us-gaap	Repayments Of Debt RepaymentsOfDebt	0	USD
CY2020	us-gaap	Repayments Of Debt RepaymentsOfDebt	200000000	USD
CY2019	us-gaap	Repayments Of Debt RepaymentsOfDebt	324500000	USD
CY2021	us-gaap	Proceeds From Issuance Of Debt ProceedsFromIssuanceOfDebt	200000000	USD
CY2020	us-gaap	Proceeds From Issuance Of Debt ProceedsFromIssuanceOfDebt	200000000	USD
CY2019	us-gaap	Proceeds From Issuance Of Debt ProceedsFromIssuanceOfDebt	129500000	USD
CY2021	us-gaap	Proceeds From Issuance Of Common Stock ProceedsFromIssuanceOfCommonStock	0	USD
CY2020	us-gaap	Proceeds From Issuance Of Common Stock ProceedsFromIssuanceOfCommonStock	0	USD
CY2019	us-gaap	Proceeds From Issuance Of Common Stock ProceedsFromIssuanceOfCommonStock	454343000	USD
CY2021	us-gaap	Payments For Derivative Instrument Financing Activities PaymentsForDerivativeInstrumentFinancingActivities	0	USD
CY2020	us-gaap	Payments For Derivative Instrument Financing Activities PaymentsForDerivativeInstrumentFinancingActivities	0	USD
CY2019	us-gaap	Payments For Derivative Instrument Financing Activities PaymentsForDerivativeInstrumentFinancingActivities	5420000	USD
CY2021	us-gaap	Payments Of Financing Costs PaymentsOfFinancingCosts	0	USD
CY2020	us-gaap	Payments Of Financing Costs PaymentsOfFinancingCosts	0	USD
CY2019	us-gaap	Payments Of Financing Costs PaymentsOfFinancingCosts	1851000	USD
CY2021	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	206229000	USD
CY2020	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-10932000	USD
CY2019	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	247765000	USD
CY2021	us-gaap	Effect Of Exchange Rate On Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	412000	USD
CY2020	us-gaap	Effect Of Exchange Rate On Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	140000	USD
CY2019	us-gaap	Effect Of Exchange Rate On Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	-97000	USD
CY2021	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	-112999000	USD
CY2020	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	-31094000	USD
CY2019	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	191411000	USD
CY2020Q3	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	226838000	USD
CY2019Q2	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	257932000	USD
CY2018Q2	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	66521000	USD
CY2021Q3	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	113839000	USD
CY2020Q3	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	226838000	USD
CY2019Q2	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	257932000	USD
CY2021	us-gaap	Interest Paid Net InterestPaidNet	1088000	USD
CY2020	us-gaap	Interest Paid Net InterestPaidNet	1046000	USD
CY2019	us-gaap	Interest Paid Net InterestPaidNet	10368000	USD
CY2021	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	8983000	USD
CY2020	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	12939000	USD
CY2019	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	7351000	USD
CY2021	mrcy	Noncash Or Part Noncash Investing Activity NoncashOrPartNoncashInvestingActivity	-1928000	USD
CY2020	mrcy	Noncash Or Part Noncash Investing Activity NoncashOrPartNoncashInvestingActivity	2623000	USD
CY2019	mrcy	Noncash Or Part Noncash Investing Activity NoncashOrPartNoncashInvestingActivity	0	USD
CY2021	mrcy	Noncash Or Part Noncash Financing Activity NoncashOrPartNoncashFinancingActivity	0	USD
CY2020	mrcy	Noncash Or Part Noncash Financing Activity NoncashOrPartNoncashFinancingActivity	0	USD
CY2019	mrcy	Noncash Or Part Noncash Financing Activity NoncashOrPartNoncashFinancingActivity	770000	USD
CY2021	us-gaap	Nature Of Operations NatureOfOperations	Description of Business<div style="margin-top:5pt;text-align:justify;text-indent:24.75pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">Mercury Systems, Inc. (the “Company” or “Mercury”) is a leading technology company serving the aerospace and defense industry, positioned at the intersection of high-tech and defense. Headquartered in Andover, Massachusetts, the Company delivers products and solutions that power a broad range of aerospace and defense programs, optimized for mission success in some of the most challenging and demanding environments. The Company envisions, creates and delivers innovative technology solutions that are open, purpose-built and uncompromised to meet our customers’ most-pressing high-tech needs, including those specific to the defense community. </span></div><div style="margin-top:5pt;text-align:justify;text-indent:24.75pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">On May 27, 2021, we acquired Pentek for a purchase price of </span><span style="background-color:#ffffff;color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">$65.0 million</span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">, subject to net working capital and net debt adjustments. Based in Upper Saddle River, New Jersey, Pentek is a leading designer and manufacturer of ruggedized, high-performance, commercial off-the-shelf ("COTS") software-defined radio and data acquisition boards, recording systems and subsystems for high-end commercial and defense applications. The acquisition and associated transaction expenses were funded through a combination of cash on hand and Mercury's existing revolving credit facility (the "Revolver"). </span></div><div style="margin-top:5pt;text-align:justify;text-indent:24.75pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">On December 30, 2020, we acquired Physical Optics Corporation ("POC") for a purchase price of </span><span style="background-color:#ffffff;color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">$310.0 million</span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">, subject to net working capital and net debt adjustments. Based in Torrance, California, POC more than doubles our global avionics business and expands its collective footprint in the platform and mission management market. We funded the acquisition through a combination of cash on hand and our existing Revolver. </span></div><div style="margin-top:5pt;text-align:justify;text-indent:22.5pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">On September 23, 2019, the Company acquired American Panel Corporation (“APC”) on a cash-free, debt-free basis for a total purchase price of $100,000, prior to net working capital and net debt adjustments. Based in Alpharetta, Georgia, APC is a leading innovator in large area display technology for the aerospace and defense market. APC's capabilities are deployed on a wide range of next-generation platforms. </span></div>For further details on the acquisitions, see Note C to the consolidated financial statements.
CY2021	us-gaap	Use Of Estimates UseOfEstimates	<div style="margin-top:9pt;text-align:justify"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:700;line-height:120%">U</span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:120%">SE</span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:700;line-height:120%"> </span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:120%">OF</span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:700;line-height:120%"> E</span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:120%">STIMATES</span></div><div style="margin-top:5pt;text-align:justify;text-indent:24.75pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">The preparation of financial statements in conformity with Generally Accepted Accounting Principles (“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.</span></div>
CY2021Q3	mrcy	Deferred Sales Commissions Amortization Period Greater Than One Year DeferredSalesCommissionsAmortizationPeriodGreaterThanOneYear	1098000	USD
CY2021Q3	us-gaap	Contract With Customer Asset Net Current ContractWithCustomerAssetNetCurrent	162921000	USD
CY2020Q3	us-gaap	Contract With Customer Asset Net Current ContractWithCustomerAssetNetCurrent	90289000	USD
CY2021Q3	us-gaap	Contract With Customer Liability ContractWithCustomerLiability	35201000	USD
CY2020Q3	us-gaap	Contract With Customer Liability ContractWithCustomerLiability	19892000	USD
CY2020Q3	us-gaap	Contract With Customer Liability ContractWithCustomerLiability	19892000	USD
CY2021	us-gaap	Contract With Customer Liability Revenue Recognized ContractWithCustomerLiabilityRevenueRecognized	16846000	USD
CY2021Q3	us-gaap	Revenue Remaining Performance Obligation RevenueRemainingPerformanceObligation	337886000	USD
CY2021	mrcy	Percentage Of Revenue Recognized PercentageOfRevenueRecognized	0.65
CY2021	us-gaap	Concentration Risk Credit Risk ConcentrationRiskCreditRisk	<div style="margin-top:9pt;text-align:justify"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:700;line-height:120%">C</span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:120%">ONCENTRATION</span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:700;line-height:120%"> </span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:120%">OF</span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:700;line-height:120%"> C</span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:120%">REDIT</span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:700;line-height:120%"> R</span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:120%">ISK</span></div><div style="margin-top:5pt;text-align:justify;text-indent:24.75pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">Financial instruments that potentially expose the Company to concentrations of credit risk consist principally of cash, cash equivalents and accounts receivable. The Company places its cash and cash equivalents with financial institutions of high credit quality. As of July 2, 2021 and July 3, 2020, the Company had $113,839 and $226,838, respectively, of cash and cash equivalents on deposit or invested with its financial and lending institutions.</span></div><div style="margin-top:5pt;text-align:justify;text-indent:22.5pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">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 when deemed necessary. As of July 2, 2021, five customers accounted for 60% of the Company's accounts receivable, unbilled receivables and costs in excess of billings. As of July 3, 2020, five customers accounted for 52% of the Company’s accounts receivable, unbilled receivables and costs in excess of billings. </span></div><div style="margin-top:5pt;text-align:justify;text-indent:24.75pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">The Company maintains an allowance for credit losses to provide for the estimated amount of receivables that will not be fully collected. The allowance is based on the assessment of the following factors: customer creditworthiness; historical payment experience; age of outstanding receivables; and any applicable collateral.</span></div>
CY2021Q3	us-gaap	Cash Cash Equivalents And Short Term Investments CashCashEquivalentsAndShortTermInvestments	113839000	USD
CY2020Q3	us-gaap	Cash Cash Equivalents And Short Term Investments CashCashEquivalentsAndShortTermInvestments	226838000	USD
CY2021	us-gaap	Number Of Reportable Segments NumberOfReportableSegments	1	segment
CY2021	us-gaap	Property Plant And Equipment Useful Life PropertyPlantAndEquipmentUsefulLife	P3Y
CY2021	us-gaap	Capitalized Computer Software Additions CapitalizedComputerSoftwareAdditions	1640000	USD
CY2020	us-gaap	Capitalized Computer Software Additions CapitalizedComputerSoftwareAdditions	905000	USD
CY2019	us-gaap	Capitalized Computer Software Additions CapitalizedComputerSoftwareAdditions	749000	USD
CY2021Q3	mrcy	Percentage Of Income Tax Examination Minimum Likelihood Of Tax Benefits Being Realized Upon Settlement PercentageOfIncomeTaxExaminationMinimumLikelihoodOfTaxBenefitsBeingRealizedUponSettlement	0.50
CY2020Q3	us-gaap	Product Warranty Accrual ProductWarrantyAccrual	3835000	USD
CY2019Q2	us-gaap	Product Warranty Accrual ProductWarrantyAccrual	1870000	USD
CY2018Q2	us-gaap	Product Warranty Accrual ProductWarrantyAccrual	1336000	USD
CY2021	us-gaap	Product Warranty Accrual Preexisting Increase Decrease ProductWarrantyAccrualPreexistingIncreaseDecrease	2446000	USD
CY2020	us-gaap	Product Warranty Accrual Warranties Issued ProductWarrantyAccrualWarrantiesIssued	2839000	USD
CY2019	us-gaap	Product Warranty Accrual Warranties Issued ProductWarrantyAccrualWarrantiesIssued	2274000	USD
CY2021	us-gaap	Product Warranty Accrual Payments ProductWarrantyAccrualPayments	2998000	USD
CY2020	us-gaap	Product Warranty Accrual Payments ProductWarrantyAccrualPayments	1613000	USD
CY2019	us-gaap	Product Warranty Accrual Payments ProductWarrantyAccrualPayments	1909000	USD
CY2021Q3	us-gaap	Product Warranty Accrual ProductWarrantyAccrual	3283000	USD
CY2020Q3	us-gaap	Product Warranty Accrual ProductWarrantyAccrual	3835000	USD
CY2019Q2	us-gaap	Product Warranty Accrual ProductWarrantyAccrual	1870000	USD
CY2021	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	55070000	shares
CY2020	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	54546000	shares
CY2019	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	47831000	shares
CY2021	us-gaap	Weighted Average Number Diluted Shares Outstanding Adjustment WeightedAverageNumberDilutedSharesOutstandingAdjustment	404000	shares
CY2020	us-gaap	Weighted Average Number Diluted Shares Outstanding Adjustment WeightedAverageNumberDilutedSharesOutstandingAdjustment	569000	shares
CY2019	us-gaap	Weighted Average Number Diluted Shares Outstanding Adjustment WeightedAverageNumberDilutedSharesOutstandingAdjustment	669000	shares
CY2021	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	55474000	shares
CY2020	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	55115000	shares
CY2019	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	48500000	shares
CY2021	us-gaap	Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	42000	shares
CY2020	us-gaap	Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	8000	shares
CY2019	us-gaap	Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	32000	shares
CY2021Q3	us-gaap	Accumulated Other Comprehensive Income Loss Defined Benefit Pension And Other Postretirement Plans Net Of Tax AccumulatedOtherComprehensiveIncomeLossDefinedBenefitPensionAndOtherPostretirementPlansNetOfTax	3285000	USD
CY2021Q3	us-gaap	Accumulated Other Comprehensive Income Loss Foreign Currency Translation Adjustment Net Of Tax AccumulatedOtherComprehensiveIncomeLossForeignCurrencyTranslationAdjustmentNetOfTax	-739000	USD
CY2020Q3	us-gaap	Accumulated Other Comprehensive Income Loss Foreign Currency Translation Adjustment Net Of Tax AccumulatedOtherComprehensiveIncomeLossForeignCurrencyTranslationAdjustmentNetOfTax	174000	USD
CY2019Q2	us-gaap	Accumulated Other Comprehensive Income Loss Foreign Currency Translation Adjustment Net Of Tax AccumulatedOtherComprehensiveIncomeLossForeignCurrencyTranslationAdjustmentNetOfTax	-232000	USD
CY2020Q3	us-gaap	Accumulated Other Comprehensive Income Loss Defined Benefit Pension And Other Postretirement Plans Net Of Tax AccumulatedOtherComprehensiveIncomeLossDefinedBenefitPensionAndOtherPostretirementPlansNetOfTax	-1768000	USD
CY2019Q2	us-gaap	Accumulated Other Comprehensive Income Loss Defined Benefit Pension And Other Postretirement Plans Net Of Tax AccumulatedOtherComprehensiveIncomeLossDefinedBenefitPensionAndOtherPostretirementPlansNetOfTax	-2350000	USD
CY2021	us-gaap	Gain On Sale Of Investments GainOnSaleOfInvestments	1538000	USD
CY2021	us-gaap	Proceeds From Sale Of Other Investments ProceedsFromSaleOfOtherInvestments	426000	USD
CY2020	us-gaap	Gain On Sale Of Investments GainOnSaleOfInvestments	4310000	USD
CY2020	us-gaap	Proceeds From Sale Of Other Investments ProceedsFromSaleOfOtherInvestments	3810000	USD
CY2021	us-gaap	Assets Fair Value Adjustment AssetsFairValueAdjustment	2007000	USD
CY2021Q3	us-gaap	Inventory Raw Materials Net Of Reserves InventoryRawMaterialsNetOfReserves	141774000	USD
CY2020Q3	us-gaap	Inventory Raw Materials Net Of Reserves InventoryRawMaterialsNetOfReserves	111225000	USD
CY2021Q3	us-gaap	Inventory Work In Process Net Of Reserves InventoryWorkInProcessNetOfReserves	58087000	USD
CY2020Q3	us-gaap	Inventory Work In Process Net Of Reserves InventoryWorkInProcessNetOfReserves	49647000	USD
CY2021Q3	us-gaap	Inventory Finished Goods Net Of Reserves InventoryFinishedGoodsNetOfReserves	21779000	USD
CY2020Q3	us-gaap	Inventory Finished Goods Net Of Reserves InventoryFinishedGoodsNetOfReserves	17221000	USD
CY2021Q3	us-gaap	Inventory Net InventoryNet	221640000	USD
CY2020Q3	us-gaap	Inventory Net InventoryNet	178093000	USD
CY2021Q3	us-gaap	Accumulated Depreciation Depletion And Amortization Property Plant And Equipment AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment	157331000	USD
CY2021Q3	us-gaap	Property Plant And Equipment Gross PropertyPlantAndEquipmentGross	285855000	USD
CY2020Q3	us-gaap	Property Plant And Equipment Gross PropertyPlantAndEquipmentGross	219542000	USD
CY2020Q3	us-gaap	Accumulated Depreciation Depletion And Amortization Property Plant And Equipment AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment	131805000	USD
CY2021Q3	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	128524000	USD
CY2020Q3	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	87737000	USD
CY2021	us-gaap	Property Plant And Equipment Gross Period Increase Decrease PropertyPlantAndEquipmentGrossPeriodIncreaseDecrease	40787000	USD
CY2021	us-gaap	Depreciation Depreciation	25912000	USD
CY2020	us-gaap	Depreciation Depreciation	18770000	USD
CY2019	us-gaap	Depreciation Depreciation	18478000	USD
CY2020Q3	us-gaap	Goodwill Goodwill	614076000	USD
CY2021Q3	us-gaap	Goodwill Goodwill	804906000	USD
CY2021Q3	us-gaap	Finite Lived Intangible Assets Gross FiniteLivedIntangibleAssetsGross	432268000	USD
CY2021Q3	us-gaap	Finite Lived Intangible Assets Accumulated Amortization FiniteLivedIntangibleAssetsAccumulatedAmortization	124709000	USD
CY2021Q3	us-gaap	Finite Lived Intangible Assets Net FiniteLivedIntangibleAssetsNet	307559000	USD
CY2020Q3	us-gaap	Finite Lived Intangible Assets Gross FiniteLivedIntangibleAssetsGross	294657000	USD
CY2020Q3	us-gaap	Finite Lived Intangible Assets Accumulated Amortization FiniteLivedIntangibleAssetsAccumulatedAmortization	85909000	USD
CY2020Q3	us-gaap	Finite Lived Intangible Assets Net FiniteLivedIntangibleAssetsNet	208748000	USD
CY2021Q3	us-gaap	Finite Lived Intangible Assets Amortization Expense Next Twelve Months FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths	49695000	USD
CY2021Q3	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Two FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo	41413000	USD
CY2021Q3	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Three FiniteLivedIntangibleAssetsAmortizationExpenseYearThree	36891000	USD
CY2021Q3	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Four FiniteLivedIntangibleAssetsAmortizationExpenseYearFour	32466000	USD
CY2021Q3	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Five FiniteLivedIntangibleAssetsAmortizationExpenseYearFive	27806000	USD
CY2021Q3	us-gaap	Finite Lived Intangible Assets Amortization Expense After Year Five FiniteLivedIntangibleAssetsAmortizationExpenseAfterYearFive	119288000	USD
CY2021Q3	us-gaap	Finite Lived Intangible Assets Net FiniteLivedIntangibleAssetsNet	307559000	USD
CY2021	mrcy	Restructuring Charges Net RestructuringChargesNet	9222000	USD
CY2021	us-gaap	Restructuring Charges RestructuringCharges	4752000	USD
CY2021	us-gaap	Restructuring And Related Cost Number Of Positions Eliminated RestructuringAndRelatedCostNumberOfPositionsEliminated	90	position
CY2020	us-gaap	Other Restructuring Costs OtherRestructuringCosts	1805000	USD
CY2020	us-gaap	Restructuring And Related Cost Number Of Positions Eliminated RestructuringAndRelatedCostNumberOfPositionsEliminated	20	position
CY2019	us-gaap	Other Restructuring Costs OtherRestructuringCosts	560000	USD
CY2019Q2	us-gaap	Restructuring Reserve Current RestructuringReserveCurrent	4000	USD
CY2020	us-gaap	Restructuring Charges RestructuringCharges	1805000	USD
CY2020	us-gaap	Payments For Restructuring PaymentsForRestructuring	1212000	USD
CY2021Q3	us-gaap	Operating Lease Right Of Use Asset OperatingLeaseRightOfUseAsset	66373000	USD
CY2020Q3	us-gaap	Restructuring Reserve Current RestructuringReserveCurrent	597000	USD
CY2021	us-gaap	Restructuring Charges RestructuringCharges	4752000	USD
CY2021	us-gaap	Payments For Restructuring PaymentsForRestructuring	4343000	USD
CY2021Q3	us-gaap	Restructuring Reserve Current RestructuringReserveCurrent	1006000	USD
CY2020Q3	us-gaap	Operating Lease Right Of Use Asset OperatingLeaseRightOfUseAsset	60613000	USD
CY2021Q3	us-gaap	Operating Lease Liability Current OperatingLeaseLiabilityCurrent	10020000	USD
CY2020Q3	us-gaap	Operating Lease Liability Current OperatingLeaseLiabilityCurrent	6950000	USD
CY2021Q3	us-gaap	Operating Lease Liability Noncurrent OperatingLeaseLiabilityNoncurrent	71508000	USD
CY2020Q3	us-gaap	Operating Lease Liability Noncurrent OperatingLeaseLiabilityNoncurrent	66981000	USD
CY2021Q3	us-gaap	Operating Lease Liability OperatingLeaseLiability	81528000	USD
CY2020Q3	us-gaap	Operating Lease Liability OperatingLeaseLiability	73931000	USD
CY2021	us-gaap	Operating Lease Payments OperatingLeasePayments	7923000	USD
CY2020	us-gaap	Operating Lease Payments OperatingLeasePayments	6929000	USD
CY2021	us-gaap	Right Of Use Asset Obtained In Exchange For Operating Lease Liability RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability	15076000	USD
CY2020	us-gaap	Right Of Use Asset Obtained In Exchange For Operating Lease Liability RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability	19942000	USD
CY2021Q3	us-gaap	Operating Lease Weighted Average Remaining Lease Term1 OperatingLeaseWeightedAverageRemainingLeaseTerm1	P8Y2M12D
CY2020Q3	us-gaap	Operating Lease Weighted Average Remaining Lease Term1 OperatingLeaseWeightedAverageRemainingLeaseTerm1	P9Y3M18D
CY2021Q3	us-gaap	Operating Lease Weighted Average Discount Rate Percent OperatingLeaseWeightedAverageDiscountRatePercent	0.0466
CY2020Q3	us-gaap	Operating Lease Weighted Average Discount Rate Percent OperatingLeaseWeightedAverageDiscountRatePercent	0.0491
CY2021Q3	us-gaap	Lessee Operating Lease Liability Payments Due Next Twelve Months LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths	13626000	USD
CY2021Q3	us-gaap	Lessee Operating Lease Liability Payments Due Year Two LesseeOperatingLeaseLiabilityPaymentsDueYearTwo	12997000	USD
CY2021Q3	us-gaap	Lessee Operating Lease Liability Payments Due Year Three LesseeOperatingLeaseLiabilityPaymentsDueYearThree	12137000	USD
CY2021Q3	us-gaap	Lessee Operating Lease Liability Payments Due Year Four LesseeOperatingLeaseLiabilityPaymentsDueYearFour	11571000	USD
CY2021Q3	us-gaap	Lessee Operating Lease Liability Payments Due Year Five LesseeOperatingLeaseLiabilityPaymentsDueYearFive	9682000	USD
CY2021Q3	us-gaap	Lessee Operating Lease Liability Payments Due After Year Five LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive	40017000	USD
CY2021Q3	us-gaap	Lessee Operating Lease Liability Payments Due LesseeOperatingLeaseLiabilityPaymentsDue	100030000	USD
CY2021Q3	us-gaap	Lessee Operating Lease Liability Undiscounted Excess Amount LesseeOperatingLeaseLiabilityUndiscountedExcessAmount	18502000	USD
CY2021Q3	us-gaap	Operating Lease Liability OperatingLeaseLiability	81528000	USD
CY2020Q3	us-gaap	Lessee Operating Lease Liability Payments Due Next Twelve Months LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths	9572000	USD
CY2020Q3	us-gaap	Lessee Operating Lease Liability Payments Due Year Two LesseeOperatingLeaseLiabilityPaymentsDueYearTwo	10741000	USD
CY2020Q3	us-gaap	Lessee Operating Lease Liability Payments Due Year Three LesseeOperatingLeaseLiabilityPaymentsDueYearThree	10272000	USD
CY2020Q3	us-gaap	Lessee Operating Lease Liability Payments Due Year Four LesseeOperatingLeaseLiabilityPaymentsDueYearFour	9333000	USD
CY2020Q3	us-gaap	Lessee Operating Lease Liability Payments Due Year Five LesseeOperatingLeaseLiabilityPaymentsDueYearFive	9356000	USD
CY2020Q3	us-gaap	Lessee Operating Lease Liability Payments Due After Year Five LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive	44763000	USD
CY2020Q3	us-gaap	Lessee Operating Lease Liability Payments Due LesseeOperatingLeaseLiabilityPaymentsDue	94037000	USD
CY2020Q3	us-gaap	Lessee Operating Lease Liability Undiscounted Excess Amount LesseeOperatingLeaseLiabilityUndiscountedExcessAmount	20106000	USD
CY2020Q3	us-gaap	Operating Lease Liability OperatingLeaseLiability	73931000	USD
CY2021	us-gaap	Operating Lease Expense OperatingLeaseExpense	11714000	USD
CY2020	us-gaap	Operating Lease Expense OperatingLeaseExpense	10029000	USD
CY2019	us-gaap	Operating Lease Expense OperatingLeaseExpense	8710000	USD
CY2021	us-gaap	Income Loss From Continuing Operations Before Income Taxes Domestic IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic	85101000	USD
CY2020	us-gaap	Income Loss From Continuing Operations Before Income Taxes Domestic IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic	93388000	USD
CY2019	us-gaap	Income Loss From Continuing Operations Before Income Taxes Domestic IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic	57281000	USD
CY2021	us-gaap	Income Loss From Continuing Operations Before Income Taxes Foreign IncomeLossFromContinuingOperationsBeforeIncomeTaxesForeign	-7928000	USD
CY2020	us-gaap	Income Loss From Continuing Operations Before Income Taxes Foreign IncomeLossFromContinuingOperationsBeforeIncomeTaxesForeign	545000	USD
CY2019	us-gaap	Income Loss From Continuing Operations Before Income Taxes Foreign IncomeLossFromContinuingOperationsBeforeIncomeTaxesForeign	2246000	USD
CY2021	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	77173000	USD
CY2020	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	93933000	USD
CY2019	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	59527000	USD
CY2021	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	12157000	USD
CY2020	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	8442000	USD
CY2019	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	11454000	USD
CY2021	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	-995000	USD
CY2020	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	-1077000	USD
CY2019	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	-3008000	USD
CY2021	us-gaap	Federal Income Tax Expense Benefit Continuing Operations FederalIncomeTaxExpenseBenefitContinuingOperations	11162000	USD
CY2020	us-gaap	Federal Income Tax Expense Benefit Continuing Operations FederalIncomeTaxExpenseBenefitContinuingOperations	7365000	USD
CY2019	us-gaap	Federal Income Tax Expense Benefit Continuing Operations FederalIncomeTaxExpenseBenefitContinuingOperations	8446000	USD
CY2021	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	6271000	USD
CY2020	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	3407000	USD
CY2019	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	5194000	USD
CY2021	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	-2689000	USD
CY2020	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	-2327000	USD
CY2019	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	-1421000	USD
CY2021	us-gaap	State And Local Income Tax Expense Benefit Continuing Operations StateAndLocalIncomeTaxExpenseBenefitContinuingOperations	3582000	USD
CY2020	us-gaap	State And Local Income Tax Expense Benefit Continuing Operations StateAndLocalIncomeTaxExpenseBenefitContinuingOperations	1080000	USD
CY2019	us-gaap	State And Local Income Tax Expense Benefit Continuing Operations StateAndLocalIncomeTaxExpenseBenefitContinuingOperations	3773000	USD
CY2021	us-gaap	Current Foreign Tax Expense Benefit CurrentForeignTaxExpenseBenefit	435000	USD
CY2020	us-gaap	Current Foreign Tax Expense Benefit CurrentForeignTaxExpenseBenefit	475000	USD
CY2019	us-gaap	Current Foreign Tax Expense Benefit CurrentForeignTaxExpenseBenefit	546000	USD
CY2021	us-gaap	Deferred Foreign Income Tax Expense Benefit DeferredForeignIncomeTaxExpenseBenefit	-50000	USD
CY2020	us-gaap	Deferred Foreign Income Tax Expense Benefit DeferredForeignIncomeTaxExpenseBenefit	-699000	USD
CY2020	mrcy	Effective Income Tax Rate Reconciliation Excess Tax Benefits On Stock Compensation Percent EffectiveIncomeTaxRateReconciliationExcessTaxBenefitsOnStockCompensationPercent	0.077
CY2021	us-gaap	Foreign Income Tax Expense Benefit Continuing Operations ForeignIncomeTaxExpenseBenefitContinuingOperations	385000	USD
CY2019	us-gaap	Deferred Foreign Income Tax Expense Benefit DeferredForeignIncomeTaxExpenseBenefit	-13000	USD
CY2020	us-gaap	Foreign Income Tax Expense Benefit Continuing Operations ForeignIncomeTaxExpenseBenefitContinuingOperations	-224000	USD
CY2019	us-gaap	Foreign Income Tax Expense Benefit Continuing Operations ForeignIncomeTaxExpenseBenefitContinuingOperations	533000	USD
CY2021	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	15129000	USD
CY2020	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	8221000	USD
CY2019	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	12752000	USD
CY2021	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.210
CY2020	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.210
CY2019	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.210
CY2021	us-gaap	Effective Income Tax Rate Reconciliation State And Local Income Taxes EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes	0.067
CY2020	us-gaap	Effective Income Tax Rate Reconciliation State And Local Income Taxes EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes	0.061
CY2019	us-gaap	Effective Income Tax Rate Reconciliation State And Local Income Taxes EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes	0.059
CY2021	us-gaap	Effective Income Tax Rate Reconciliation Nondeductible Expense Research And Development EffectiveIncomeTaxRateReconciliationNondeductibleExpenseResearchAndDevelopment	0.109
CY2020	us-gaap	Effective Income Tax Rate Reconciliation Nondeductible Expense Research And Development EffectiveIncomeTaxRateReconciliationNondeductibleExpenseResearchAndDevelopment	0.119
CY2019	us-gaap	Effective Income Tax Rate Reconciliation Nondeductible Expense Research And Development EffectiveIncomeTaxRateReconciliationNondeductibleExpenseResearchAndDevelopment	0.045
CY2021	us-gaap	Effective Income Tax Rate Reconciliation Deductions EffectiveIncomeTaxRateReconciliationDeductions	0.013
CY2020	us-gaap	Effective Income Tax Rate Reconciliation Deductions EffectiveIncomeTaxRateReconciliationDeductions	0.031
CY2019	us-gaap	Effective Income Tax Rate Reconciliation Deductions EffectiveIncomeTaxRateReconciliationDeductions	0
CY2021	mrcy	Effective Income Tax Rate Reconciliation Excess Tax Benefits On Stock Compensation Percent EffectiveIncomeTaxRateReconciliationExcessTaxBenefitsOnStockCompensationPercent	0.037
CY2020	us-gaap	Effective Income Tax Rate Reconciliation Tax Credits Foreign EffectiveIncomeTaxRateReconciliationTaxCreditsForeign	0.001
CY2019	us-gaap	Effective Income Tax Rate Reconciliation Tax Credits Foreign EffectiveIncomeTaxRateReconciliationTaxCreditsForeign	0.001
CY2021	mrcy	Effective Income Tax Rate Reconciliation Acquisition Costs EffectiveIncomeTaxRateReconciliationAcquisitionCosts	0.004
CY2020	mrcy	Effective Income Tax Rate Reconciliation Acquisition Costs EffectiveIncomeTaxRateReconciliationAcquisitionCosts	0
CY2019	mrcy	Effective Income Tax Rate Reconciliation Excess Tax Benefits On Stock Compensation Percent EffectiveIncomeTaxRateReconciliationExcessTaxBenefitsOnStockCompensationPercent	0.045
CY2021	us-gaap	Effective Income Tax Rate Reconciliation Tax Credits Foreign EffectiveIncomeTaxRateReconciliationTaxCreditsForeign	0.009
CY2021	us-gaap	Effective Income Tax Rate Reconciliation Nondeductible Expense Share Based Compensation Cost EffectiveIncomeTaxRateReconciliationNondeductibleExpenseShareBasedCompensationCost	0.036
CY2020	us-gaap	Effective Income Tax Rate Reconciliation Nondeductible Expense Share Based Compensation Cost EffectiveIncomeTaxRateReconciliationNondeductibleExpenseShareBasedCompensationCost	0.026
CY2019	us-gaap	Effective Income Tax Rate Reconciliation Nondeductible Expense Share Based Compensation Cost EffectiveIncomeTaxRateReconciliationNondeductibleExpenseShareBasedCompensationCost	0.020
CY2019	mrcy	Effective Income Tax Rate Reconciliation Acquisition Costs EffectiveIncomeTaxRateReconciliationAcquisitionCosts	0.001
CY2021	mrcy	Effective Income Tax Rate Reconciliation Changes In Contingent Consideration EffectiveIncomeTaxRateReconciliationChangesInContingentConsideration	-0.013
CY2020	mrcy	Effective Income Tax Rate Reconciliation Changes In Contingent Consideration EffectiveIncomeTaxRateReconciliationChangesInContingentConsideration	-0.030
CY2019	mrcy	Effective Income Tax Rate Reconciliation Changes In Contingent Consideration EffectiveIncomeTaxRateReconciliationChangesInContingentConsideration	-0.003
CY2021	us-gaap	Effective Income Tax Rate Reconciliation Change In Enacted Tax Rate EffectiveIncomeTaxRateReconciliationChangeInEnactedTaxRate	0
CY2020	us-gaap	Effective Income Tax Rate Reconciliation Change In Enacted Tax Rate EffectiveIncomeTaxRateReconciliationChangeInEnactedTaxRate	0.005
CY2019	us-gaap	Effective Income Tax Rate Reconciliation Change In Enacted Tax Rate EffectiveIncomeTaxRateReconciliationChangeInEnactedTaxRate	0
CY2021	us-gaap	Effective Income Tax Rate Reconciliation Change In Deferred Tax Assets Valuation Allowance EffectiveIncomeTaxRateReconciliationChangeInDeferredTaxAssetsValuationAllowance	0.019
CY2021Q3	mrcy	Deferred Tax Assets Inventory Valuation And Receivable Allowances DeferredTaxAssetsInventoryValuationAndReceivableAllowances	15039000	USD
CY2020	us-gaap	Effective Income Tax Rate Reconciliation Change In Deferred Tax Assets Valuation Allowance EffectiveIncomeTaxRateReconciliationChangeInDeferredTaxAssetsValuationAllowance	0
CY2019	us-gaap	Effective Income Tax Rate Reconciliation Change In Deferred Tax Assets Valuation Allowance EffectiveIncomeTaxRateReconciliationChangeInDeferredTaxAssetsValuationAllowance	0
CY2021	us-gaap	Effective Income Tax Rate Reconciliation Other Adjustments EffectiveIncomeTaxRateReconciliationOtherAdjustments	-0.003
CY2020	us-gaap	Effective Income Tax Rate Reconciliation Other Adjustments EffectiveIncomeTaxRateReconciliationOtherAdjustments	-0.008
CY2019	us-gaap	Effective Income Tax Rate Reconciliation Other Adjustments EffectiveIncomeTaxRateReconciliationOtherAdjustments	0.010
CY2021	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.196
CY2020	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.088
CY2019	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.214
CY2021	us-gaap	Excess Tax Benefit From Share Based Compensation Operating Activities ExcessTaxBenefitFromShareBasedCompensationOperatingActivities	2831000	USD
CY2020	us-gaap	Excess Tax Benefit From Share Based Compensation Operating Activities ExcessTaxBenefitFromShareBasedCompensationOperatingActivities	7259000	USD
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$MRCY
MERCURY SYSTEMS INC Stock $mrcy

2021 Q3 Form 10-K Financial Statement

#000104952121000032 Filed on August 17, 2021

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$MRCY MERCURY SYSTEMS INC Stock $mrcy

2021 Q3 Form 10-K Financial Statement

#000104952121000032 Filed on August 17, 2021

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$MRCY
MERCURY SYSTEMS INC Stock $mrcy