$MGNI
Magnite Inc Stock $mgni

$mgni Overview Financials Valuation SEC Filings Company Website

2024 Q1 Form 10-K Financial Statement

#000159597424000014 Filed on February 28, 2024

Income Statement

Concept	2024 Q1	2023 Q4	2023
Revenue	$149.3M	$186.9M	$619.7M
YoY Change	14.73%	6.58%	7.39%
Cost Of Revenue	$65.90M	$70.03M	$409.9M
YoY Change	-47.21%	-36.92%	33.45%
Gross Profit	$83.42M	$116.9M	$209.8M
YoY Change	1467.4%	81.58%	-22.27%
Gross Profit Margin	55.86%	62.54%	33.86%
Selling, General & Admin	$70.35M	$55.87M	$263.0M
YoY Change	-5.1%	1.28%	-6.55%
% of Gross Profit	84.34%	47.79%	125.37%
Research & Development	$26.89M	$23.00M	$94.32M
YoY Change	11.05%	2.99%	0.6%
% of Gross Profit	32.24%	19.67%	44.96%
Depreciation & Amortization	$13.57M	$16.82M	$240.8M
YoY Change	-85.84%	-78.27%	11.46%
% of Gross Profit	16.26%	14.39%	114.78%
Operating Expenses	$97.25M	$81.78M	$357.3M
YoY Change	-1.13%	-11.99%	-4.76%
Operating Profit	-$13.83M	$35.12M	-$155.0M
YoY Change	-86.24%	-223.06%	37.44%
Interest Expense	-$5.643M	-$11.60M	-$34.32M
YoY Change	-32.89%	-2.56%	22.01%
% of Operating Profit		-33.01%
Other Income/Expense, Net	-$11.74M	$1.287M	-$2.538M
YoY Change	-907.29%	-3.01%	-88.87%
Pretax Income	-$25.57M	$33.16M	-$157.5M
YoY Change	-74.19%	-184.79%	16.19%
Income Tax	-$7.800M	$2.250M	$1.600M
% Of Pretax Income		6.78%
Net Earnings	-$17.76M	$30.91M	-$159.2M
YoY Change	-82.01%	-184.96%	22.15%
Net Earnings / Revenue	-11.89%	16.54%	-25.69%
Basic Earnings Per Share	-$0.13		-$1.17
Diluted Earnings Per Share	-$0.13	$0.22	-$1.17
COMMON SHARES
Basic Shares Outstanding	139.9M shares	137.9M shares	136.6M shares
Diluted Shares Outstanding	139.3M shares		136.6M shares

Balance Sheet

Concept	2024 Q1	2023 Q4	2023
SHORT-TERM ASSETS
Cash & Short-Term Investments	$252.8M	$326.2M	$326.2M
YoY Change	6.88%	-0.01%	-0.01%
Cash & Equivalents	$252.8M	$326.2M	$326.2M
Short-Term Investments
Other Short-Term Assets	$20.77M	$20.51M	$20.51M
YoY Change	-17.24%	-12.74%	-12.74%
Inventory
Prepaid Expenses
Receivables	$999.8M	$1.176B	$1.176B
Other Receivables	$0.00	$0.00	$0.00
Total Short-Term Assets	$1.273B	$1.523B	$1.523B
YoY Change	12.01%	14.83%	14.83%
LONG-TERM ASSETS
Property, Plant & Equipment	$55.53M	$47.37M	$107.9M
YoY Change	21.67%	5.34%	-12.39%
Goodwill	$978.2M	$978.2M
YoY Change	0.0%	0.0%
Intangibles	$43.42M	$51.01M
YoY Change	-74.01%	-79.88%
Long-Term Investments
YoY Change
Other Assets	$16.33M	$6.729M	$6.729M
YoY Change	115.09%	-8.86%	-8.86%
Total Long-Term Assets	$1.181B	$1.166B	$1.166B
YoY Change	-8.69%	-15.88%	-15.88%
TOTAL ASSETS
Total Short-Term Assets	$1.273B	$1.523B	$1.523B
Total Long-Term Assets	$1.181B	$1.166B	$1.166B
Total Assets	$2.454B	$2.689B	$2.689B
YoY Change	1.0%	-0.86%	-0.86%
SHORT-TERM LIABILITIES
YoY Change
Accounts Payable	$1.106B	$1.357B	$1.357B
YoY Change	18.27%	26.01%	26.01%
Accrued Expenses	$37.76M	$35.49M	$35.49M
YoY Change	3.42%	-7.93%	-7.93%
Deferred Revenue
YoY Change
Short-Term Debt	$0.00	$0.00	$0.00
YoY Change
Long-Term Debt Due	$3.650M	$3.600M	$3.600M
YoY Change	1.39%	0.0%	0.0%
Total Short-Term Liabilities	$1.155B	$1.402B	$1.402B
YoY Change	17.54%	24.63%	24.63%
LONG-TERM LIABILITIES
Long-Term Debt	$549.1M	$533.0M	$533.0M
YoY Change	-18.54%	-26.26%	-26.26%
Other Long-Term Liabilities	$1.577M	$1.657M	$51.32M
YoY Change	-19.62%	-3.83%	-24.59%
Total Long-Term Liabilities	$550.7M	$534.6M	$584.3M
YoY Change	-18.54%	-26.2%	-26.11%
TOTAL LIABILITIES
Total Short-Term Liabilities	$1.155B	$1.402B	$1.402B
Total Long-Term Liabilities	$550.7M	$534.6M	$584.3M
Total Liabilities	$1.759B	$1.987B	$1.987B
YoY Change	1.97%	3.45%	3.45%
SHAREHOLDERS EQUITY
Retained Earnings	-$701.7M	-$684.0M
YoY Change	12.54%	30.33%
Common Stock	$2.000K	$2.000K
YoY Change	0.0%	0.0%
Preferred Stock
YoY Change
Treasury Stock (at cost)
YoY Change
Treasury Stock Shares
Shareholders Equity	$695.4M	$701.7M	$701.7M
YoY Change
Total Liabilities & Shareholders Equity	$2.454B	$2.689B	$2.689B
YoY Change	1.0%	-0.86%	-0.86%

Cashflow Statement

Concept	2024 Q1	2023 Q4	2023
OPERATING ACTIVITIES
Net Income	-$17.76M	$30.91M	-$159.2M
YoY Change	-82.01%	-184.96%	22.15%
Depreciation, Depletion And Amortization	$13.57M	$16.82M	$240.8M
YoY Change	-85.84%	-78.27%	11.46%
Cash From Operating Activities	-$60.41M	$89.09M	$214.4M
YoY Change	95.55%	0.43%	11.33%
INVESTING ACTIVITIES
Capital Expenditures	$5.873M	$12.04M	$26.76M
YoY Change	33.36%	-20.85%	-13.15%
Acquisitions			$0.00
YoY Change			-100.0%
Other Investing Activities		$0.00	$0.00
YoY Change			-100.0%
Cash From Investing Activities	-$9.252M	-$12.04M	-$37.38M
YoY Change	23.91%	-20.85%	-42.62%
FINANCING ACTIVITIES
Cash Dividend Paid
YoY Change
Common Stock Issuance & Retirement, Net			$0.00
YoY Change			-100.0%
Debt Paid & Issued, Net
YoY Change
Cash From Financing Activities	-$3.101M	-62.16M	-$177.8M
YoY Change	-94.01%	3258.24%	489.43%
NET CHANGE
Cash From Operating Activities	-$60.41M	89.09M	$214.4M
Cash From Investing Activities	-$9.252M	-12.04M	-$37.38M
Cash From Financing Activities	-$3.101M	-62.16M	-$177.8M
Net Change In Cash	-$73.39M	14.88M	-$283.0K
YoY Change	-18.37%	-79.23%	-100.3%
FREE CASH FLOW
Cash From Operating Activities	-$60.41M	$89.09M	$214.4M
Capital Expenditures	$5.873M	$12.04M	$26.76M
Free Cash Flow	-$66.28M	$77.04M	$187.6M
YoY Change	87.79%	4.83%	15.99%

Facts In Submission

Frame	Concept Type	Concept / XBRL Key	Value	Unit
CY2022	us-gaap	Effect Of Exchange Rate On Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	-1417000	usd
CY2021	us-gaap	Effect Of Exchange Rate On Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	-683000	usd
CY2023	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	-283000	usd
CY2022	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	95809000	usd
CY2021Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	230693000	usd
CY2020Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	117731000	usd
CY2023	dei	Entity Central Index Key EntityCentralIndexKey	0001595974
CY2023	dei	Amendment Flag AmendmentFlag	false
CY2023	dei	Document Fiscal Year Focus DocumentFiscalYearFocus	2023
CY2023	dei	Document Fiscal Period Focus DocumentFiscalPeriodFocus	FY
CY2023	us-gaap	Number Of Operating Segments NumberOfOperatingSegments	1	segment
CY2023	us-gaap	Number Of Reporting Units NumberOfReportingUnits	1	reportingunit
CY2023Q4	us-gaap	Operating Lease Liability Statement Of Financial Position Extensible List OperatingLeaseLiabilityStatementOfFinancialPositionExtensibleList	http://www.magnite.com/20231231#LeasesLiabilitiesCurrent http://www.magnite.com/20231231#LeasesLiabilitiesNoncurrent
CY2023	dei	Document Annual Report DocumentAnnualReport	true
CY2023	dei	Current Fiscal Year End Date CurrentFiscalYearEndDate	--12-31
CY2023	dei	Document Transition Report DocumentTransitionReport	false
CY2023	dei	Entity File Number EntityFileNumber	001-36384
CY2023	dei	Entity Registrant Name EntityRegistrantName	MAGNITE, INC.
CY2023	dei	Entity Incorporation State Country Code EntityIncorporationStateCountryCode	DE
CY2023	dei	Entity Tax Identification Number EntityTaxIdentificationNumber	20-8881738
CY2023	dei	Entity Address Address Line1 EntityAddressAddressLine1	1250 Broadway,
CY2023	dei	Entity Address Address Line2 EntityAddressAddressLine2	15th Floor
CY2023	dei	Entity Address City Or Town EntityAddressCityOrTown	New York,
CY2023	dei	Entity Address State Or Province EntityAddressStateOrProvince	NY
CY2023	dei	Entity Address Postal Zip Code EntityAddressPostalZipCode	10001
CY2023	dei	City Area Code CityAreaCode	212
CY2023	dei	Local Phone Number LocalPhoneNumber	243-2769
CY2023	dei	Security12b Title Security12bTitle	Common stock, par value $0.00001 per share
CY2023	dei	Trading Symbol TradingSymbol	MGNI
CY2023	dei	Security Exchange Name SecurityExchangeName	NASDAQ
CY2023	dei	Entity Well Known Seasoned Issuer EntityWellKnownSeasonedIssuer	No
CY2023	dei	Entity Voluntary Filers EntityVoluntaryFilers	No
CY2023	dei	Entity Current Reporting Status EntityCurrentReportingStatus	Yes
CY2023	dei	Entity Interactive Data Current EntityInteractiveDataCurrent	Yes
CY2023	dei	Entity Filer Category EntityFilerCategory	Large Accelerated Filer
CY2023	dei	Entity Small Business EntitySmallBusiness	false
CY2023	dei	Entity Emerging Growth Company EntityEmergingGrowthCompany	false
CY2023	dei	Icfr Auditor Attestation Flag IcfrAuditorAttestationFlag	true
CY2023	dei	Document Fin Stmt Error Correction Flag DocumentFinStmtErrorCorrectionFlag	false
CY2023	dei	Entity Shell Company EntityShellCompany	false
CY2023Q2	dei	Entity Public Float EntityPublicFloat	1186971950	usd
CY2024Q1	dei	Entity Common Stock Shares Outstanding EntityCommonStockSharesOutstanding	139932053	shares
CY2023	dei	Auditor Firm AuditorFirmId	34
CY2023	dei	Auditor Name AuditorName	Deloitte & Touche LLP
CY2023	dei	Auditor Location AuditorLocation	Los Angeles, California
CY2023Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	326219000	usd
CY2022Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	326254000	usd
CY2023Q4	us-gaap	Accounts Receivable Net Current AccountsReceivableNetCurrent	1176276000	usd
CY2022Q4	us-gaap	Accounts Receivable Net Current AccountsReceivableNetCurrent	976506000	usd
CY2023Q4	us-gaap	Common Stock Shares Issued CommonStockSharesIssued	138577000	shares
CY2022Q4	us-gaap	Common Stock Shares Issued CommonStockSharesIssued	134006000	shares
CY2023Q4	us-gaap	Common Stock Value CommonStockValue	2000	usd
CY2023Q4	us-gaap	Prepaid Expense And Other Assets Current PrepaidExpenseAndOtherAssetsCurrent	20508000	usd
CY2022Q4	us-gaap	Prepaid Expense And Other Assets Current PrepaidExpenseAndOtherAssetsCurrent	23501000	usd
CY2023Q4	us-gaap	Assets Current AssetsCurrent	1523003000	usd
CY2022Q4	us-gaap	Assets Current AssetsCurrent	1326261000	usd
CY2023Q4	us-gaap	Property Plant And Equipment And Finance Lease Right Of Use Asset After Accumulated Depreciation And Amortization PropertyPlantAndEquipmentAndFinanceLeaseRightOfUseAssetAfterAccumulatedDepreciationAndAmortization	47371000	usd
CY2022Q4	us-gaap	Property Plant And Equipment And Finance Lease Right Of Use Asset After Accumulated Depreciation And Amortization PropertyPlantAndEquipmentAndFinanceLeaseRightOfUseAssetAfterAccumulatedDepreciationAndAmortization	44969000	usd
CY2023Q4	us-gaap	Operating Lease Right Of Use Asset OperatingLeaseRightOfUseAsset	60549000	usd
CY2022Q4	us-gaap	Operating Lease Right Of Use Asset OperatingLeaseRightOfUseAsset	78211000	usd
CY2023Q4	mgni	Internal Use Software Development Costs Net InternalUseSoftwareDevelopmentCostsNet	21926000	usd
CY2022Q4	mgni	Internal Use Software Development Costs Net InternalUseSoftwareDevelopmentCostsNet	23671000	usd
CY2023Q4	us-gaap	Intangible Assets Net Excluding Goodwill IntangibleAssetsNetExcludingGoodwill	51011000	usd
CY2022Q4	us-gaap	Intangible Assets Net Excluding Goodwill IntangibleAssetsNetExcludingGoodwill	253501000	usd
CY2023Q4	us-gaap	Goodwill Goodwill	978217000	usd
CY2022Q4	us-gaap	Goodwill Goodwill	978217000	usd
CY2023Q4	us-gaap	Other Assets Noncurrent OtherAssetsNoncurrent	6729000	usd
CY2022Q4	us-gaap	Other Assets Noncurrent OtherAssetsNoncurrent	7383000	usd
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CY2022Q4	us-gaap	Accounts Payable And Accrued Liabilities Current AccountsPayableAndAccruedLiabilitiesCurrent	1094321000	usd
CY2023Q4	mgni	Leases Liabilities Current LeasesLiabilitiesCurrent	20402000	usd
CY2022Q4	mgni	Leases Liabilities Current LeasesLiabilitiesCurrent	21172000	usd
CY2023Q4	us-gaap	Debt Current DebtCurrent	3600000	usd
CY2022Q4	us-gaap	Debt Current DebtCurrent	3600000	usd
CY2023Q4	us-gaap	Other Liabilities Current OtherLiabilitiesCurrent	5957000	usd
CY2022Q4	us-gaap	Other Liabilities Current OtherLiabilitiesCurrent	5939000	usd
CY2023Q4	us-gaap	Liabilities Current LiabilitiesCurrent	1402135000	usd
CY2022Q4	us-gaap	Liabilities Current LiabilitiesCurrent	1125032000	usd
CY2023Q4	us-gaap	Long Term Debt Noncurrent LongTermDebtNoncurrent	532986000	usd
CY2022Q4	us-gaap	Long Term Debt Noncurrent LongTermDebtNoncurrent	722757000	usd
CY2023Q4	mgni	Leases Liabilities Noncurrent LeasesLiabilitiesNoncurrent	49665000	usd
CY2022Q4	mgni	Leases Liabilities Noncurrent LeasesLiabilitiesNoncurrent	66331000	usd
CY2023Q4	us-gaap	Deferred Income Tax Liabilities Net DeferredIncomeTaxLiabilitiesNet	680000	usd
CY2022Q4	us-gaap	Deferred Income Tax Liabilities Net DeferredIncomeTaxLiabilitiesNet	5072000	usd
CY2023Q4	us-gaap	Other Liabilities Noncurrent OtherLiabilitiesNoncurrent	1657000	usd
CY2022Q4	us-gaap	Other Liabilities Noncurrent OtherLiabilitiesNoncurrent	1723000	usd
CY2023Q4	us-gaap	Liabilities Liabilities	1987123000	usd
CY2022Q4	us-gaap	Liabilities Liabilities	1920915000	usd
CY2023Q4	us-gaap	Commitments And Contingencies CommitmentsAndContingencies		usd
CY2022Q4	us-gaap	Commitments And Contingencies CommitmentsAndContingencies		usd
CY2023Q4	us-gaap	Preferred Stock Par Or Stated Value Per Share PreferredStockParOrStatedValuePerShare	0.00001
CY2022Q4	us-gaap	Preferred Stock Par Or Stated Value Per Share PreferredStockParOrStatedValuePerShare	0.00001
CY2022Q4	us-gaap	Preferred Stock Shares Authorized PreferredStockSharesAuthorized	10000000	shares
CY2023Q4	us-gaap	Preferred Stock Shares Authorized PreferredStockSharesAuthorized	10000000	shares
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CY2022Q4	us-gaap	Common Stock Value CommonStockValue	2000	usd
CY2023Q4	us-gaap	Additional Paid In Capital AdditionalPaidInCapital	1387715000	usd
CY2022Q4	us-gaap	Additional Paid In Capital AdditionalPaidInCapital	1319221000	usd
CY2023Q4	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	-2076000	usd
CY2022Q4	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	-3151000	usd
CY2023Q4	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	-683958000	usd
CY2022Q4	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	-524774000	usd
CY2023Q4	us-gaap	Stockholders Equity StockholdersEquity	701683000	usd
CY2022Q4	us-gaap	Stockholders Equity StockholdersEquity	791298000	usd
CY2023Q4	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	2688806000	usd
CY2022Q4	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	2712213000	usd
CY2023	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	619710000	usd
CY2022	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	577069000	usd
CY2021	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	468413000	usd
CY2023	us-gaap	Cost Of Goods And Services Sold CostOfGoodsAndServicesSold	409906000	usd
CY2022	us-gaap	Cost Of Goods And Services Sold CostOfGoodsAndServicesSold	307165000	usd
CY2021	us-gaap	Cost Of Goods And Services Sold CostOfGoodsAndServicesSold	201662000	usd
CY2023	us-gaap	Selling And Marketing Expense SellingAndMarketingExpense	173982000	usd
CY2022	us-gaap	Selling And Marketing Expense SellingAndMarketingExpense	200081000	usd
CY2021	us-gaap	Selling And Marketing Expense SellingAndMarketingExpense	170406000	usd
CY2023	us-gaap	Research And Development Expense ResearchAndDevelopmentExpense	94318000	usd
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CY2021	mgni	Restructuring Charges And Business Combination Acquisition Related Costs RestructuringChargesAndBusinessCombinationAcquisitionRelatedCosts	38177000	usd
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CY2022	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	-29260000	usd
CY2021	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	-19848000	usd
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CY2022	us-gaap	Other Operating Income OtherOperatingIncome	5318000	usd
CY2023	us-gaap	Nonoperating Income Expense NonoperatingIncomeExpense	-2538000	usd
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CY2023	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	-157547000	usd
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CY2021	us-gaap	Net Income Loss NetIncomeLoss	65000	usd
CY2023	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	-1.17
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CY2023	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	-158109000	usd
CY2022	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	-132098000	usd
CY2021	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0
CY2023	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	136620000	shares
CY2022	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	132887000	shares
CY2021	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	126294000	shares
CY2023	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	136620000	shares
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CY2021	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	136261000	shares
CY2023	us-gaap	Net Income Loss NetIncomeLoss	-159184000	usd
CY2022	us-gaap	Net Income Loss NetIncomeLoss	-130323000	usd
CY2021	us-gaap	Net Income Loss NetIncomeLoss	65000	usd
CY2023	us-gaap	Other Comprehensive Income Foreign Currency Transaction And Translation Adjustment Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationAdjustmentNetOfTaxPortionAttributableToParent	1075000	usd
CY2022	us-gaap	Other Comprehensive Income Foreign Currency Transaction And Translation Adjustment Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationAdjustmentNetOfTaxPortionAttributableToParent	-1775000	usd
CY2021	us-gaap	Other Comprehensive Income Foreign Currency Transaction And Translation Adjustment Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationAdjustmentNetOfTaxPortionAttributableToParent	-419000	usd
CY2023	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	1075000	usd
CY2022	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	-1775000	usd
CY2021	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	-354000	usd
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CY2021	us-gaap	Stock Issued During Period Value Stock Options Exercised StockIssuedDuringPeriodValueStockOptionsExercised	9425000	usd
CY2021	us-gaap	Stock Issued During Period Value Employee Stock Purchase Plan StockIssuedDuringPeriodValueEmployeeStockPurchasePlan	3714000	usd
CY2021	us-gaap	Adjustments Related To Tax Withholding For Share Based Compensation AdjustmentsRelatedToTaxWithholdingForShareBasedCompensation	6496000	usd
CY2021	mgni	Stock Issued During Period Value Merger StockIssuedDuringPeriodValueMerger	495591000	usd
CY2021	us-gaap	Treasury Stock Value Acquired Cost Method TreasuryStockValueAcquiredCostMethod	6007000	usd
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CY2021	us-gaap	Net Income Loss NetIncomeLoss	65000	usd
CY2022	us-gaap	Treasury Stock Value Acquired Cost Method TreasuryStockValueAcquiredCostMethod	15663000	usd
CY2022	us-gaap	Stock Repurchased And Retired During Period Shares StockRepurchasedAndRetiredDuringPeriodShares	1592000	shares
CY2022	us-gaap	Stock Repurchased And Retired During Period Value StockRepurchasedAndRetiredDuringPeriodValue	0	usd
CY2022	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	66822000	usd
CY2022	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	-1775000	usd
CY2022	us-gaap	Net Income Loss NetIncomeLoss	-130323000	usd
CY2022Q4	us-gaap	Stockholders Equity StockholdersEquity	791298000	usd
CY2023	us-gaap	Stock Issued During Period Value Stock Options Exercised StockIssuedDuringPeriodValueStockOptionsExercised	2166000	usd
CY2023	us-gaap	Stock Issued During Period Value Employee Stock Purchase Plan StockIssuedDuringPeriodValueEmployeeStockPurchasePlan	3513000	usd
CY2023	us-gaap	Adjustments Related To Tax Withholding For Share Based Compensation AdjustmentsRelatedToTaxWithholdingForShareBasedCompensation	11814000	usd
CY2023	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	74629000	usd
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CY2023	us-gaap	Net Income Loss NetIncomeLoss	-159184000	usd
CY2023Q4	us-gaap	Stockholders Equity StockholdersEquity	701683000	usd
CY2023	us-gaap	Net Income Loss NetIncomeLoss	-159184000	usd
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CY2021	us-gaap	Net Income Loss NetIncomeLoss	65000	usd
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CY2022	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	216052000	usd
CY2021	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	146886000	usd
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CY2022	us-gaap	Share Based Compensation ShareBasedCompensation	64118000	usd
CY2021	us-gaap	Share Based Compensation ShareBasedCompensation	40735000	usd
CY2023	us-gaap	Impairment Of Intangible Assets Indefinitelived Excluding Goodwill ImpairmentOfIntangibleAssetsIndefinitelivedExcludingGoodwill	0	usd
CY2022	us-gaap	Impairment Of Intangible Assets Indefinitelived Excluding Goodwill ImpairmentOfIntangibleAssetsIndefinitelivedExcludingGoodwill	3320000	usd
CY2021	us-gaap	Impairment Of Intangible Assets Indefinitelived Excluding Goodwill ImpairmentOfIntangibleAssetsIndefinitelivedExcludingGoodwill	0	usd
CY2023	us-gaap	Gains Losses On Extinguishment Of Debt GainsLossesOnExtinguishmentOfDebt	26480000	usd
CY2022	us-gaap	Gains Losses On Extinguishment Of Debt GainsLossesOnExtinguishmentOfDebt	0	usd
CY2021	us-gaap	Gains Losses On Extinguishment Of Debt GainsLossesOnExtinguishmentOfDebt	0	usd
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CY2022	us-gaap	Gain Loss On Sale Of Property Plant Equipment GainLossOnSaleOfPropertyPlantEquipment	86000	usd
CY2021	us-gaap	Gain Loss On Sale Of Property Plant Equipment GainLossOnSaleOfPropertyPlantEquipment	-130000	usd
CY2023	us-gaap	Provision For Doubtful Accounts ProvisionForDoubtfulAccounts	4666000	usd
CY2022	us-gaap	Provision For Doubtful Accounts ProvisionForDoubtfulAccounts	-163000	usd
CY2021	us-gaap	Provision For Doubtful Accounts ProvisionForDoubtfulAccounts	49000	usd
CY2023	us-gaap	Amortization Of Financing Costs And Discounts AmortizationOfFinancingCostsAndDiscounts	6279000	usd
CY2022	us-gaap	Amortization Of Financing Costs And Discounts AmortizationOfFinancingCostsAndDiscounts	6785000	usd
CY2021	us-gaap	Amortization Of Financing Costs And Discounts AmortizationOfFinancingCostsAndDiscounts	4925000	usd
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CY2021	us-gaap	Other Operating Activities Cash Flow Statement OtherOperatingActivitiesCashFlowStatement	3292000	usd
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CY2022	us-gaap	Increase Decrease In Accounts Receivable IncreaseDecreaseInAccountsReceivable	46325000	usd
CY2021	us-gaap	Increase Decrease In Accounts Receivable IncreaseDecreaseInAccountsReceivable	254368000	usd
CY2023	us-gaap	Increase Decrease In Prepaid Deferred Expense And Other Assets IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets	-1004000	usd
CY2022	us-gaap	Increase Decrease In Prepaid Deferred Expense And Other Assets IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets	4228000	usd
CY2021	us-gaap	Increase Decrease In Prepaid Deferred Expense And Other Assets IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets	-1324000	usd
CY2023	us-gaap	Increase Decrease In Accounts Payable And Accrued Liabilities IncreaseDecreaseInAccountsPayableAndAccruedLiabilities	294677000	usd
CY2022	us-gaap	Increase Decrease In Accounts Payable And Accrued Liabilities IncreaseDecreaseInAccountsPayableAndAccruedLiabilities	91377000	usd
CY2021	us-gaap	Increase Decrease In Accounts Payable And Accrued Liabilities IncreaseDecreaseInAccountsPayableAndAccruedLiabilities	284905000	usd
CY2023	us-gaap	Increase Decrease In Other Operating Liabilities IncreaseDecreaseInOtherOperatingLiabilities	-112000	usd
CY2022	us-gaap	Increase Decrease In Other Operating Liabilities IncreaseDecreaseInOtherOperatingLiabilities	-389000	usd
CY2021	us-gaap	Increase Decrease In Other Operating Liabilities IncreaseDecreaseInOtherOperatingLiabilities	25000	usd
CY2023	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	214367000	usd
CY2022	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	192550000	usd
CY2021	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	126589000	usd
CY2023	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	26764000	usd
CY2022	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	30815000	usd
CY2021	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	17697000	usd
CY2023	us-gaap	Payments To Develop Software PaymentsToDevelopSoftware	10619000	usd
CY2022	us-gaap	Payments To Develop Software PaymentsToDevelopSoftware	13582000	usd
CY2021	us-gaap	Payments To Develop Software PaymentsToDevelopSoftware	11431000	usd
CY2023	us-gaap	Payments To Acquire Businesses Net Of Cash Acquired PaymentsToAcquireBusinessesNetOfCashAcquired	0	usd
CY2022	us-gaap	Payments To Acquire Businesses Net Of Cash Acquired PaymentsToAcquireBusinessesNetOfCashAcquired	20755000	usd
CY2021	us-gaap	Payments To Acquire Businesses Net Of Cash Acquired PaymentsToAcquireBusinessesNetOfCashAcquired	661869000	usd
CY2023	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-37383000	usd
CY2022	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-65152000	usd
CY2021	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-690997000	usd
CY2023	us-gaap	Proceeds From Convertible Debt ProceedsFromConvertibleDebt	0	usd
CY2022	us-gaap	Proceeds From Convertible Debt ProceedsFromConvertibleDebt	0	usd
CY2021	us-gaap	Proceeds From Convertible Debt ProceedsFromConvertibleDebt	400000000	usd
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CY2022	us-gaap	Proceeds From Issuance Of Other Long Term Debt ProceedsFromIssuanceOfOtherLongTermDebt	0	usd
CY2021	us-gaap	Proceeds From Issuance Of Other Long Term Debt ProceedsFromIssuanceOfOtherLongTermDebt	349200000	usd
CY2023	mgni	Payments For Capped Call Options PaymentsForCappedCallOptions	0	usd
CY2022	mgni	Payments For Capped Call Options PaymentsForCappedCallOptions	0	usd
CY2021	mgni	Payments For Capped Call Options PaymentsForCappedCallOptions	38960000	usd
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CY2022	us-gaap	Payments Of Debt Issuance Costs PaymentsOfDebtIssuanceCosts	0	usd
CY2021	us-gaap	Payments Of Debt Issuance Costs PaymentsOfDebtIssuanceCosts	30378000	usd
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CY2022	us-gaap	Proceeds From Stock Options Exercised ProceedsFromStockOptionsExercised	2234000	usd
CY2021	us-gaap	Proceeds From Stock Options Exercised ProceedsFromStockOptionsExercised	9425000	usd
CY2023	us-gaap	Proceeds From Issuance Of Shares Under Incentive And Share Based Compensation Plans ProceedsFromIssuanceOfSharesUnderIncentiveAndShareBasedCompensationPlans	3513000	usd
CY2022	us-gaap	Proceeds From Issuance Of Shares Under Incentive And Share Based Compensation Plans ProceedsFromIssuanceOfSharesUnderIncentiveAndShareBasedCompensationPlans	3744000	usd
CY2021	us-gaap	Proceeds From Issuance Of Shares Under Incentive And Share Based Compensation Plans ProceedsFromIssuanceOfSharesUnderIncentiveAndShareBasedCompensationPlans	3714000	usd
CY2023	us-gaap	Repayments Of Debt RepaymentsOfDebt	3600000	usd
CY2022	us-gaap	Repayments Of Debt RepaymentsOfDebt	3600000	usd
CY2021	us-gaap	Repayments Of Debt RepaymentsOfDebt	1800000	usd
CY2023	us-gaap	Repayments Of Convertible Debt RepaymentsOfConvertibleDebt	165518000	usd
CY2022	us-gaap	Repayments Of Convertible Debt RepaymentsOfConvertibleDebt	0	usd
CY2021	us-gaap	Repayments Of Convertible Debt RepaymentsOfConvertibleDebt	0	usd
CY2023	us-gaap	Finance Lease Principal Payments FinanceLeasePrincipalPayments	276000	usd
CY2022	us-gaap	Finance Lease Principal Payments FinanceLeasePrincipalPayments	807000	usd
CY2021	us-gaap	Finance Lease Principal Payments FinanceLeasePrincipalPayments	645000	usd
CY2023	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	0	usd
CY2022	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	15663000	usd
CY2021	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	6007000	usd
CY2023	us-gaap	Payments Related To Tax Withholding For Share Based Compensation PaymentsRelatedToTaxWithholdingForShareBasedCompensation	11814000	usd
CY2022	us-gaap	Payments Related To Tax Withholding For Share Based Compensation PaymentsRelatedToTaxWithholdingForShareBasedCompensation	14498000	usd
CY2021	us-gaap	Payments Related To Tax Withholding For Share Based Compensation PaymentsRelatedToTaxWithholdingForShareBasedCompensation	6496000	usd
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CY2022	us-gaap	Payment For Contingent Consideration Liability Financing Activities PaymentForContingentConsiderationLiabilityFinancingActivities	1582000	usd
CY2021	us-gaap	Payment For Contingent Consideration Liability Financing Activities PaymentForContingentConsiderationLiabilityFinancingActivities	0	usd
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CY2022	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-30172000	usd
CY2021	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	678053000	usd
CY2023	us-gaap	Effect Of Exchange Rate On Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	575000	usd
CY2021	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	112962000	usd
CY2022Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	326502000	usd
CY2023Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	326219000	usd
CY2022Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	326502000	usd
CY2021Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	230693000	usd
CY2023Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	326219000	usd
CY2022Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	326254000	usd
CY2021Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	230401000	usd
CY2023Q4	us-gaap	Restricted Cash Current RestrictedCashCurrent	0	usd
CY2022Q4	us-gaap	Restricted Cash Current RestrictedCashCurrent	248000	usd
CY2021Q4	us-gaap	Restricted Cash Current RestrictedCashCurrent	240000	usd
CY2023Q4	us-gaap	Restricted Cash Noncurrent RestrictedCashNoncurrent	0	usd
CY2022Q4	us-gaap	Restricted Cash Noncurrent RestrictedCashNoncurrent	0	usd
CY2021Q4	us-gaap	Restricted Cash Noncurrent RestrictedCashNoncurrent	52000	usd
CY2023Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	326219000	usd
CY2022Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	326502000	usd
CY2023	us-gaap	Income Taxes Paid IncomeTaxesPaid	5357000	usd
CY2022	us-gaap	Income Taxes Paid IncomeTaxesPaid	4932000	usd
CY2021	us-gaap	Income Taxes Paid IncomeTaxesPaid	2141000	usd
CY2023	us-gaap	Interest Paid Net InterestPaidNet	37028000	usd
CY2022	us-gaap	Interest Paid Net InterestPaidNet	26320000	usd
CY2021	us-gaap	Interest Paid Net InterestPaidNet	12908000	usd
CY2023	us-gaap	Capital Expenditures Incurred But Not Yet Paid CapitalExpendituresIncurredButNotYetPaid	1690000	usd
CY2022	us-gaap	Capital Expenditures Incurred But Not Yet Paid CapitalExpendituresIncurredButNotYetPaid	1295000	usd
CY2021	us-gaap	Capital Expenditures Incurred But Not Yet Paid CapitalExpendituresIncurredButNotYetPaid	2171000	usd
CY2023	us-gaap	Employee Service Share Based Compensation Allocation Of Recognized Period Costs Capitalized Amount EmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsCapitalizedAmount	2012000	usd
CY2022	us-gaap	Employee Service Share Based Compensation Allocation Of Recognized Period Costs Capitalized Amount EmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsCapitalizedAmount	2704000	usd
CY2021	us-gaap	Employee Service Share Based Compensation Allocation Of Recognized Period Costs Capitalized Amount EmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsCapitalizedAmount	1496000	usd
CY2023	us-gaap	Right Of Use Asset Obtained In Exchange For Operating Lease Liability RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability	4017000	usd
CY2022	us-gaap	Right Of Use Asset Obtained In Exchange For Operating Lease Liability RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability	20131000	usd
CY2021	us-gaap	Right Of Use Asset Obtained In Exchange For Operating Lease Liability RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability	42013000	usd
CY2023	mgni	Business Combination Consideration Transferred Indemnification Claims Holdback BusinessCombinationConsiderationTransferredIndemnificationClaimsHoldback	0	usd
CY2022	mgni	Business Combination Consideration Transferred Indemnification Claims Holdback BusinessCombinationConsiderationTransferredIndemnificationClaimsHoldback	2293000	usd
CY2021	mgni	Business Combination Consideration Transferred Indemnification Claims Holdback BusinessCombinationConsiderationTransferredIndemnificationClaimsHoldback	1602000	usd
CY2023	us-gaap	Stock Issued1 StockIssued1	0	usd
CY2022	us-gaap	Stock Issued1 StockIssued1	0	usd
CY2021	us-gaap	Stock Issued1 StockIssued1	495591000	usd
CY2023	mgni	Debt Discount Received During Noncash Or Partial Noncash Transaction DebtDiscountReceivedDuringNoncashOrPartialNoncashTransaction	0	usd
CY2022	mgni	Debt Discount Received During Noncash Or Partial Noncash Transaction DebtDiscountReceivedDuringNoncashOrPartialNoncashTransaction	0	usd
CY2021	mgni	Debt Discount Received During Noncash Or Partial Noncash Transaction DebtDiscountReceivedDuringNoncashOrPartialNoncashTransaction	10800000	usd
CY2023	us-gaap	Nature Of Operations NatureOfOperations	Nature of Operations<div style="margin-bottom:10pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-style:italic;font-weight:700;line-height:120%"> Company Overview</span></div><div style="margin-bottom:10pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%"> Magnite, Inc. ("Magnite" or the "Company"), formerly known as The Rubicon Project, Inc., was formed in Delaware and began operations on April 20, 2007. The Company operates a sell side advertising platform that offers buyers and sellers of digital advertising a single partner for transacting globally across all channels, formats, and auction types. </span></div><div style="margin-bottom:10pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%"> The Company's common stock is listed on the Nasdaq Global Select Market of The Nasdaq Stock Market LLC ("Nasdaq") under the symbol "MGNI." Magnite has its principal offices in New York City, Los Angeles, Denver, London, and Sydney, and additional offices in Europe, Asia, North America, and South America.</span></div><div style="margin-bottom:10pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%"> The Company provides a technology solution to automate the purchase and sale of digital advertising inventory for buyers and sellers globally, across all channels, formats and auction types. The Company's platform features applications and services for sellers of digital advertising inventory, or publishers, that own or operate websites, applications, CTV channels, and other digital media properties, to manage and monetize their inventory; applications and services for buyers, including advertisers, agencies, agency trading desks, and demand side platforms, to buy digital advertising inventory; and a transparent, independent marketplace that brings buyers and sellers together and facilitates intelligent decision making and automated transaction execution at scale. The Company's clients include many of the world's leading sellers and buyers of digital advertising inventory.</span></div> Sellers monetize their inventory through the Company’s platform by seamlessly connecting to a global market of integrated buyers that transact through real-time bidding, which includes direct sale of premium inventory to a buyer, referred to as private marketplace, and open auction bidding, where buyers bid against each other in a real-time auction for the right to purchase a publisher’s inventory, referred to as open marketplace. At the same time, buyers leverage the Company’s platform to manage their advertising spending and reach their target audiences, simplify order management and campaign tracking, obtain actionable insights into audiences for their advertising, and access impression-level purchasing from thousands of sellers.
CY2023	us-gaap	Number Of Operating Segments NumberOfOperatingSegments	1	segment
CY2023	us-gaap	Use Of Estimates UseOfEstimates	The preparation of consolidated financial statements in conformity with GAAP requires management to make estimates and assumptions that affect the reported and disclosed financial statements and accompanying footnotes. Actual results could differ materially from these estimates.<div style="margin-bottom:10pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%"> On an ongoing basis, management evaluates its estimates, primarily those related to: (i) revenue recognition criteria, including the determination of revenue reporting as net versus gross in the Company’s revenue arrangements, (ii) accounts receivable and allowances for doubtful accounts, (iii) amounts capitalized and the useful lives of intangible assets, internal use software development costs, and property and equipment, (iv) valuation of long-lived assets and their recoverability, including goodwill, and (v) the realization of tax assets and estimates of tax liabilities. </span></div><div style="margin-bottom:10pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%"> These estimates are based on historical data and experience, as well as various other factors that management believes to be reasonable under the circumstances, the results of which form the basis for making judgments about the carrying value of assets and liabilities that are not readily apparent from other sources. Estimates relating to the allowance for doubtful accounts, amounts capitalized and estimated useful lives of internal-use software development costs, estimated useful lives of long-lived assets, recoverability of intangible assets and goodwill, and income taxes, including the realization of tax assets and estimates of tax </span></div><div style="margin-bottom:10pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">liabilities require the selection of appropriate valuation methodologies and models, and judgment in evaluating ranges of assumptions and financial inputs. Actual results may differ materially from those estimates under different assumptions or circumstances.</span></div>
CY2023	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Award Requisite Service Period1 ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardRequisiteServicePeriod1	P4Y
CY2023Q4	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	500000000	shares
CY2023Q4	us-gaap	Preferred Stock Shares Authorized PreferredStockSharesAuthorized	10000000	shares
CY2023Q4	us-gaap	Common Stock Capital Shares Reserved For Future Issuance CommonStockCapitalSharesReservedForFutureIssuance	44592265	shares
CY2023	us-gaap	Concentration Risk Credit Risk ConcentrationRiskCreditRisk	Financial instruments that potentially subject the Company to concentration of credit risk consist principally of cash, cash equivalents, restricted cash and accounts receivable. Cash maintained with financial institutions typically exceeds applicable federally insured limits in the U.S. and may not be covered by similar local depositor insurance schemes for cash held in foreign currencies or in bank accounts outside of the U.S. Cash equivalents, primarily money market fund investments, are not insured by federal insurance schemes and are exposed to other potential risks linked to high concentration among major custodial banks.<div style="margin-bottom:10pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%"> Accounts receivable include amounts due from buyers with principal operations primarily in the United States. The Company performs ongoing credit evaluations of its buyers.</span></div>
CY2023	us-gaap	Net Income Loss NetIncomeLoss	-159184000	usd
CY2022	us-gaap	Net Income Loss NetIncomeLoss	-130323000	usd
CY2021	us-gaap	Net Income Loss NetIncomeLoss	65000	usd
CY2023	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	136620000	shares
CY2022	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	132887000	shares
CY2021	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	126294000	shares
CY2023	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	-1.17
CY2022	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	-0.98
CY2021	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0
CY2023	us-gaap	Net Income Loss Available To Common Stockholders Diluted NetIncomeLossAvailableToCommonStockholdersDiluted	-159184000	usd
CY2022	us-gaap	Net Income Loss Available To Common Stockholders Diluted NetIncomeLossAvailableToCommonStockholdersDiluted	-130323000	usd
CY2021	us-gaap	Net Income Loss Available To Common Stockholders Diluted NetIncomeLossAvailableToCommonStockholdersDiluted	65000	usd
CY2023	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	136620000	shares
CY2022	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	132887000	shares
CY2021	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	126294000	shares
CY2023	us-gaap	Weighted Average Number Diluted Shares Outstanding Adjustment WeightedAverageNumberDilutedSharesOutstandingAdjustment	136620000	shares
CY2022	us-gaap	Weighted Average Number Diluted Shares Outstanding Adjustment WeightedAverageNumberDilutedSharesOutstandingAdjustment	132887000	shares
CY2021	us-gaap	Weighted Average Number Diluted Shares Outstanding Adjustment WeightedAverageNumberDilutedSharesOutstandingAdjustment	136261000	shares
CY2023	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	-1.17
CY2022	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	-0.98
CY2021	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0
CY2023	us-gaap	Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	8270000	shares
CY2022	us-gaap	Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	9774000	shares
CY2021	us-gaap	Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	4940000	shares
CY2023	mgni	Increase Decrease In Accounts Payable Seller IncreaseDecreaseInAccountsPayableSeller	15400000	usd
CY2023	us-gaap	Provision For Doubtful Accounts ProvisionForDoubtfulAccounts	4700000	usd
CY2022	mgni	Accounts Receivable Credit Loss Expense Reversal Gross AccountsReceivableCreditLossExpenseReversalGross	-1700000	usd
CY2022	mgni	Increase Decrease In Accounts Payable Seller IncreaseDecreaseInAccountsPayableSeller	-1600000	usd
CY2022	us-gaap	Provision For Doubtful Accounts ProvisionForDoubtfulAccounts	-200000	usd
CY2023	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	619710000	usd
CY2022	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	577069000	usd
CY2021	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	468413000	usd
CY2023	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	619710000	usd
CY2022	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	577069000	usd
CY2021	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	468413000	usd
CY2023	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	619710000	usd
CY2021	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	468413000	usd
CY2023	mgni	Revenue Payment Terms RevenuePaymentTerms	P75D
CY2023Q4	us-gaap	Allowance For Doubtful Accounts Receivable AllowanceForDoubtfulAccountsReceivable	20400000	usd
CY2022Q4	us-gaap	Allowance For Doubtful Accounts Receivable AllowanceForDoubtfulAccountsReceivable	1100000	usd
CY2023Q4	mgni	Accounts Payable Seller AccountsPayableSeller	1100000	usd
CY2022Q4	mgni	Accounts Payable Seller AccountsPayableSeller	600000	usd
CY2022Q4	us-gaap	Allowance For Doubtful Accounts Receivable AllowanceForDoubtfulAccountsReceivable	1092000	usd
CY2021Q4	us-gaap	Allowance For Doubtful Accounts Receivable AllowanceForDoubtfulAccountsReceivable	3475000	usd
CY2023	mgni	Accounts Receivable Allowance For Credit Loss Merger Assumed AccountsReceivableAllowanceForCreditLossMergerAssumed	0	usd
CY2022	mgni	Accounts Receivable Allowance For Credit Loss Merger Assumed AccountsReceivableAllowanceForCreditLossMergerAssumed	0	usd
CY2021	mgni	Accounts Receivable Allowance For Credit Loss Merger Assumed AccountsReceivableAllowanceForCreditLossMergerAssumed	835000	usd
CY2023	mgni	Accounts Receivable Credit Loss Expense Reversal Gross AccountsReceivableCreditLossExpenseReversalGross	20115000	usd
CY2023	us-gaap	Allowance For Doubtful Accounts Receivable Recoveries AllowanceForDoubtfulAccountsReceivableRecoveries	12000	usd
CY2022	us-gaap	Allowance For Doubtful Accounts Receivable Recoveries AllowanceForDoubtfulAccountsReceivableRecoveries	87000	usd
CY2023Q4	us-gaap	Allowance For Doubtful Accounts Receivable AllowanceForDoubtfulAccountsReceivable	20363000	usd
CY2022Q4	us-gaap	Allowance For Doubtful Accounts Receivable AllowanceForDoubtfulAccountsReceivable	1092000	usd
CY2021Q4	us-gaap	Allowance For Doubtful Accounts Receivable AllowanceForDoubtfulAccountsReceivable	3475000	usd
CY2023	mgni	Accounts Receivable Credit Loss Expense Reversal Gross AccountsReceivableCreditLossExpenseReversalGross	20100000	usd
CY2021	us-gaap	Provision For Doubtful Accounts ProvisionForDoubtfulAccounts	0	usd
CY2023Q4	us-gaap	Property Plant And Equipment And Finance Lease Right Of Use Asset Before Accumulated Depreciation And Amortization PropertyPlantAndEquipmentAndFinanceLeaseRightOfUseAssetBeforeAccumulatedDepreciationAndAmortization	163869000	usd
CY2022Q4	us-gaap	Property Plant And Equipment And Finance Lease Right Of Use Asset Before Accumulated Depreciation And Amortization PropertyPlantAndEquipmentAndFinanceLeaseRightOfUseAssetBeforeAccumulatedDepreciationAndAmortization	158682000	usd
CY2023Q4	us-gaap	Property Plant And Equipment And Finance Lease Right Of Use Asset Accumulated Depreciation And Amortization PropertyPlantAndEquipmentAndFinanceLeaseRightOfUseAssetAccumulatedDepreciationAndAmortization	116498000	usd
CY2022Q4	us-gaap	Property Plant And Equipment And Finance Lease Right Of Use Asset Accumulated Depreciation And Amortization PropertyPlantAndEquipmentAndFinanceLeaseRightOfUseAssetAccumulatedDepreciationAndAmortization	113713000	usd
CY2023Q4	us-gaap	Property Plant And Equipment And Finance Lease Right Of Use Asset After Accumulated Depreciation And Amortization PropertyPlantAndEquipmentAndFinanceLeaseRightOfUseAssetAfterAccumulatedDepreciationAndAmortization	47371000	usd
CY2022Q4	us-gaap	Property Plant And Equipment And Finance Lease Right Of Use Asset After Accumulated Depreciation And Amortization PropertyPlantAndEquipmentAndFinanceLeaseRightOfUseAssetAfterAccumulatedDepreciationAndAmortization	44969000	usd
CY2023	us-gaap	Depreciation Depreciation	24000000	usd
CY2022	us-gaap	Depreciation Depreciation	19000000	usd
CY2021	us-gaap	Depreciation Depreciation	16100000	usd
CY2023	mgni	Impairment Long Lived Asset Held For Use Statement Of Income Or Comprehensive Income Extensible Enumeration Not Disclosed Flag ImpairmentLongLivedAssetHeldForUseStatementOfIncomeOrComprehensiveIncomeExtensibleEnumerationNotDisclosedFlag	impairment
CY2023	us-gaap	Impairment Of Long Lived Assets Held For Use ImpairmentOfLongLivedAssetsHeldForUse	500000	usd
CY2022	us-gaap	Impairment Of Long Lived Assets Held For Use ImpairmentOfLongLivedAssetsHeldForUse	0	usd
CY2021	us-gaap	Impairment Of Long Lived Assets Held For Use ImpairmentOfLongLivedAssetsHeldForUse	0	usd
CY2023Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	47371000	usd
CY2022Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	44969000	usd
CY2023Q4	us-gaap	Capitalized Computer Software Gross CapitalizedComputerSoftwareGross	82932000	usd
CY2022Q4	us-gaap	Capitalized Computer Software Gross CapitalizedComputerSoftwareGross	77151000	usd
CY2023Q4	us-gaap	Capitalized Computer Software Accumulated Amortization CapitalizedComputerSoftwareAccumulatedAmortization	61006000	usd
CY2022Q4	us-gaap	Capitalized Computer Software Accumulated Amortization CapitalizedComputerSoftwareAccumulatedAmortization	53480000	usd
CY2023Q4	us-gaap	Capitalized Computer Software Net CapitalizedComputerSoftwareNet	21926000	usd
CY2022Q4	us-gaap	Capitalized Computer Software Net CapitalizedComputerSoftwareNet	23671000	usd
CY2023	us-gaap	Capitalized Computer Software Additions CapitalizedComputerSoftwareAdditions	12600000	usd
CY2022	us-gaap	Capitalized Computer Software Additions CapitalizedComputerSoftwareAdditions	16200000	usd
CY2021	us-gaap	Capitalized Computer Software Additions CapitalizedComputerSoftwareAdditions	12900000	usd
CY2023	us-gaap	Capitalized Computer Software Amortization1 CapitalizedComputerSoftwareAmortization1	14300000	usd
CY2022	us-gaap	Capitalized Computer Software Amortization1 CapitalizedComputerSoftwareAmortization1	12600000	usd
CY2021	us-gaap	Capitalized Computer Software Amortization1 CapitalizedComputerSoftwareAmortization1	9000000	usd
CY2023	mgni	Internal Use Software Development Costs Writeoffs InternalUseSoftwareDevelopmentCostsWriteoffs	400000	usd
CY2022	mgni	Internal Use Software Development Costs Writeoffs InternalUseSoftwareDevelopmentCostsWriteoffs	1500000	usd
CY2021	mgni	Internal Use Software Development Costs Writeoffs InternalUseSoftwareDevelopmentCostsWriteoffs	100000	usd
CY2023Q4	mgni	Computer Software Development In Process ComputerSoftwareDevelopmentInProcess	3900000	usd
CY2023Q4	mgni	Capitalized Computer Software Amortization Expense Next Twelve Months CapitalizedComputerSoftwareAmortizationExpenseNextTwelveMonths	9300000	usd
CY2023Q4	mgni	Capitalized Computer Software Amortization Expense Year Two CapitalizedComputerSoftwareAmortizationExpenseYearTwo	6600000	usd
CY2023Q4	mgni	Capitalized Computer Software Amortization Expense Year Three CapitalizedComputerSoftwareAmortizationExpenseYearThree	2200000	usd
CY2021Q4	us-gaap	Goodwill Goodwill	969873000	usd
CY2022Q4	us-gaap	Goodwill Goodwill	978217000	usd
CY2023	us-gaap	Goodwill Period Increase Decrease GoodwillPeriodIncreaseDecrease	0	usd
CY2023Q4	us-gaap	Goodwill Goodwill	978217000	usd
CY2023Q4	us-gaap	Finite Lived Intangible Assets Gross FiniteLivedIntangibleAssetsGross	156966000	usd
CY2022Q4	us-gaap	Finite Lived Intangible Assets Gross FiniteLivedIntangibleAssetsGross	540666000	usd
CY2023Q4	us-gaap	Finite Lived Intangible Assets Accumulated Amortization FiniteLivedIntangibleAssetsAccumulatedAmortization	105955000	usd
CY2022Q4	us-gaap	Finite Lived Intangible Assets Accumulated Amortization FiniteLivedIntangibleAssetsAccumulatedAmortization	287165000	usd
CY2023Q4	us-gaap	Finite Lived Intangible Assets Net FiniteLivedIntangibleAssetsNet	51011000	usd
CY2022Q4	us-gaap	Finite Lived Intangible Assets Net FiniteLivedIntangibleAssetsNet	253501000	usd
CY2023	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	202500000	usd
CY2022	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	184400000	usd
CY2021	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	121900000	usd
CY2023	us-gaap	Impairment Of Intangible Assets Finitelived ImpairmentOfIntangibleAssetsFinitelived	383700000	usd
CY2022	us-gaap	Impairment Of Intangible Assets Finitelived ImpairmentOfIntangibleAssetsFinitelived	40500000	usd
CY2021	us-gaap	Impairment Of Intangible Assets Finitelived ImpairmentOfIntangibleAssetsFinitelived	11100000	usd
CY2023Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Next Twelve Months FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths	30134000	usd
CY2023Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Two FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo	14445000	usd
CY2023Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Three FiniteLivedIntangibleAssetsAmortizationExpenseYearThree	6001000	usd
CY2023Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Four FiniteLivedIntangibleAssetsAmortizationExpenseYearFour	431000	usd
CY2023Q4	us-gaap	Finite Lived Intangible Assets Net FiniteLivedIntangibleAssetsNet	51011000	usd
CY2021Q3	us-gaap	Finitelived Intangible Assets Acquired1 FinitelivedIntangibleAssetsAcquired1	23400000	usd
CY2023Q4	mgni	Accounts Payable Seller Current AccountsPayableSellerCurrent	1333242000	usd
CY2022Q4	mgni	Accounts Payable Seller Current AccountsPayableSellerCurrent	1057556000	usd
CY2023Q4	us-gaap	Accounts Payable Trade Current AccountsPayableTradeCurrent	23844000	usd
CY2022Q4	us-gaap	Accounts Payable Trade Current AccountsPayableTradeCurrent	19387000	usd
CY2023Q4	us-gaap	Employee Related Liabilities Current EmployeeRelatedLiabilitiesCurrent	15090000	usd
CY2023Q4	us-gaap	Employee Service Share Based Compensation Nonvested Awards Total Compensation Cost Not Yet Recognized Stock Options EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedStockOptions	5600000	usd
CY2023	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Vested In Period Fair Value1 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsVestedInPeriodFairValue1	4700000	usd
CY2022Q4	us-gaap	Employee Related Liabilities Current EmployeeRelatedLiabilitiesCurrent	15065000	usd
CY2023Q4	mgni	Indemnification Claim Accrual Current IndemnificationClaimAccrualCurrent	0	usd
CY2022Q4	mgni	Indemnification Claim Accrual Current IndemnificationClaimAccrualCurrent	2313000	usd
CY2023Q4	us-gaap	Accounts Payable And Accrued Liabilities Current AccountsPayableAndAccruedLiabilitiesCurrent	1372176000	usd
CY2022Q4	us-gaap	Accounts Payable And Accrued Liabilities Current AccountsPayableAndAccruedLiabilitiesCurrent	1094321000	usd
CY2021	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	-419000	usd
CY2022	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	-1775000	usd
CY2023	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	1075000	usd
CY2023Q1	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Number Of Additional Shares Authorized ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfAdditionalSharesAuthorized	6700286	shares
CY2023Q2	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Number Of Additional Shares Authorized ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfAdditionalSharesAuthorized	8056129	shares
CY2023Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Number Of Shares Available For Grant ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant	23180894	shares
CY2022Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber	4672000	shares
CY2022Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice	8.71
CY2023	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period Gross ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross	130000	shares
CY2023	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Grants In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice	10.59
CY2023	mgni	Sharebased Compensation Arrangementby Sharebased Payment Award Options Exercisesin Period Gross SharebasedCompensationArrangementbySharebasedPaymentAwardOptionsExercisesinPeriodGross	395000	shares
CY2023	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Exercises In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice	5.49
CY2023	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Expirations In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExpirationsInPeriod	145000	shares
CY2023	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Expirations In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExpirationsInPeriodWeightedAverageExercisePrice	21.02
CY2023Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber	4262000	shares
CY2023Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice	8.65
CY2023	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Outstanding Weighted Average Remaining Contractual Term2 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsOutstandingWeightedAverageRemainingContractualTerm2	P5Y3M18D
CY2023Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue	13806000	usd
CY2023Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercisable Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber	3649000	shares
CY2023Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercisable Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice	7.53
CY2023	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Exercisable Weighted Average Remaining Contractual Term1 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableWeightedAverageRemainingContractualTerm1	P4Y10M24D
CY2023Q4	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Exercisable Intrinsic Value1 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableIntrinsicValue1	13534000	usd
CY2023	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercises In Period Total Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue	2200000	usd
CY2023	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period Weighted Average Grant Date Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue	7.27
CY2023	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Vested In Period Total Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodTotalFairValue	1200000	usd
CY2023Q4	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Equity Instruments Other Than Options Aggregate Intrinsic Value Nonvested SharebasedCompensationArrangementBySharebasedPaymentAwardEquityInstrumentsOtherThanOptionsAggregateIntrinsicValueNonvested	2500000	usd
CY2023	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	72617000	usd
CY2022	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	64118000	usd
CY2021	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	40735000	usd
CY2023	us-gaap	Effective Income Tax Rate Reconciliation Share Based Compensation Excess Tax Benefit Amount EffectiveIncomeTaxRateReconciliationShareBasedCompensationExcessTaxBenefitAmount	5500000	usd
CY2023	us-gaap	Employee Service Share Based Compensation Tax Benefit From Exercise Of Stock Options EmployeeServiceShareBasedCompensationTaxBenefitFromExerciseOfStockOptions	12500000	usd
CY2022	us-gaap	Effective Income Tax Rate Reconciliation Share Based Compensation Excess Tax Benefit Amount EffectiveIncomeTaxRateReconciliationShareBasedCompensationExcessTaxBenefitAmount	6400000	usd
CY2022	us-gaap	Employee Service Share Based Compensation Tax Benefit From Exercise Of Stock Options EmployeeServiceShareBasedCompensationTaxBenefitFromExerciseOfStockOptions	9600000	usd
CY2021	us-gaap	Effective Income Tax Rate Reconciliation Share Based Compensation Excess Tax Benefit Amount EffectiveIncomeTaxRateReconciliationShareBasedCompensationExcessTaxBenefitAmount	-151600000	usd
CY2021	us-gaap	Employee Service Share Based Compensation Tax Benefit From Exercise Of Stock Options EmployeeServiceShareBasedCompensationTaxBenefitFromExerciseOfStockOptions	40500000	usd
CY2023	mgni	Restructuring Charges Merger And Acquisition Assumed Loss Contracts RestructuringChargesMergerAndAcquisitionAssumedLossContracts	2190000	usd
CY2022	mgni	Restructuring Charges Merger And Acquisition Assumed Loss Contracts RestructuringChargesMergerAndAcquisitionAssumedLossContracts	0	usd
CY2021	mgni	Restructuring Charges Merger And Acquisition Assumed Loss Contracts RestructuringChargesMergerAndAcquisitionAssumedLossContracts	2500000	usd
CY2023	mgni	Restructuring Impairment Costs RestructuringImpairmentCosts	506000	usd
CY2022	mgni	Restructuring Impairment Costs RestructuringImpairmentCosts	0	usd
CY2021	mgni	Restructuring Impairment Costs RestructuringImpairmentCosts	0	usd
CY2023	mgni	Restructuring Reserve And Merger Related Costs Settled Without Cash RestructuringReserveAndMergerRelatedCostsSettledWithoutCash	143000	usd
CY2022	mgni	Restructuring Reserve And Merger Related Costs Settled Without Cash RestructuringReserveAndMergerRelatedCostsSettledWithoutCash	2004000	usd
CY2021	mgni	Restructuring Reserve And Merger Related Costs Settled Without Cash RestructuringReserveAndMergerRelatedCostsSettledWithoutCash	1071000	usd
CY2023	mgni	Restructuring Charges Impairments RestructuringChargesImpairments	0	usd
CY2022	mgni	Restructuring Charges Impairments RestructuringChargesImpairments	3320000	usd
CY2021	mgni	Restructuring Charges Impairments RestructuringChargesImpairments	0	usd
CY2023	us-gaap	Business Combination Acquisition Related Costs BusinessCombinationAcquisitionRelatedCosts	0	usd
CY2022	us-gaap	Business Combination Acquisition Related Costs BusinessCombinationAcquisitionRelatedCosts	917000	usd
CY2021	us-gaap	Business Combination Acquisition Related Costs BusinessCombinationAcquisitionRelatedCosts	28422000	usd
CY2022	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	-8879000	usd
CY2021	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	-98971000	usd
CY2023	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	1637000	usd
CY2022	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	-5274000	usd
CY2021	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	-95053000	usd
CY2023	mgni	Restructuring Charges And Business Combination Acquisition Related Costs RestructuringChargesAndBusinessCombinationAcquisitionRelatedCosts	7465000	usd
CY2022	mgni	Restructuring Charges And Business Combination Acquisition Related Costs RestructuringChargesAndBusinessCombinationAcquisitionRelatedCosts	7468000	usd
CY2021	mgni	Restructuring Charges And Business Combination Acquisition Related Costs RestructuringChargesAndBusinessCombinationAcquisitionRelatedCosts	38177000	usd
CY2023	us-gaap	Income Loss From Continuing Operations Before Income Taxes Domestic IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic	-165311000	usd
CY2022	us-gaap	Income Loss From Continuing Operations Before Income Taxes Domestic IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic	-145480000	usd
CY2021	us-gaap	Income Loss From Continuing Operations Before Income Taxes Domestic IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic	-105168000	usd
CY2023	us-gaap	Income Loss From Continuing Operations Before Income Taxes Foreign IncomeLossFromContinuingOperationsBeforeIncomeTaxesForeign	7764000	usd
CY2022	us-gaap	Income Loss From Continuing Operations Before Income Taxes Foreign IncomeLossFromContinuingOperationsBeforeIncomeTaxesForeign	9883000	usd
CY2021	us-gaap	Income Loss From Continuing Operations Before Income Taxes Foreign IncomeLossFromContinuingOperationsBeforeIncomeTaxesForeign	10180000	usd
CY2023	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	-157547000	usd
CY2022	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	-135597000	usd
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CY2023Q4	us-gaap	Lessee Operating Lease Liability Payments Due Next Twelve Months LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths	23890000	usd
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$MGNI
Magnite Inc Stock $mgni

2024 Q1 Form 10-K Financial Statement

#000159597424000014 Filed on February 28, 2024

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$MGNI Magnite Inc Stock $mgni

2024 Q1 Form 10-K Financial Statement

#000159597424000014 Filed on February 28, 2024

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$MGNI
Magnite Inc Stock $mgni