$RMBS
RAMBUS INC Stock $rmbs

$rmbs Overview Financials Valuation SEC Filings Company Website

2024 Q1 Form 10-K Financial Statement

#000091727324000028 Filed on February 23, 2024

Income Statement

Concept	2024 Q1	2023 Q4	2023
Revenue	$117.9M	$122.2M	$461.1M
YoY Change	3.61%	-0.12%	1.39%
Cost Of Revenue	$23.66M	$24.12M	$103.4M
YoY Change	-25.31%	-27.76%	-3.86%
Gross Profit	$94.21M	$98.11M	$357.7M
YoY Change	14.77%	10.26%	3.02%
Gross Profit Margin	79.93%	80.27%	77.57%
Selling, General & Admin	$25.83M	$25.67M	$108.1M
YoY Change	-16.59%	-6.02%	1.34%
% of Gross Profit	27.41%	26.16%	30.23%
Research & Development	$37.36M	$35.99M	$156.8M
YoY Change	-10.83%	-10.31%	-1.22%
% of Gross Profit	39.65%	36.68%	43.84%
Depreciation & Amortization	$7.723M	$195.0K	$1.217M
YoY Change	-12.97%	-98.43%	-95.32%
% of Gross Profit	8.2%	0.2%	0.34%
Operating Expenses	$64.08M	$62.94M	$275.4M
YoY Change	-20.04%	-7.22%	1.91%
Operating Profit	$30.13M	$35.16M	$82.27M
YoY Change	1451.54%	66.35%	6.92%
Interest Expense	$366.0K	$3.838M	$9.837M
YoY Change	-3.94%	993.45%	424.92%
% of Operating Profit	1.21%	10.91%	11.96%
Other Income/Expense, Net	$4.221M	$23.92M	$23.92M
YoY Change	174.09%		-128.22%
Pretax Income	$34.35M	$62.89M	$187.2M
YoY Change	886.56%	281.42%	-1223.21%
Income Tax	$1.500M	$4.348M	-$146.7M
% Of Pretax Income	4.37%	6.91%	-78.41%
Net Earnings	$32.90M	$58.55M	$333.9M
YoY Change	902.68%	267.08%	-2433.36%
Net Earnings / Revenue	27.91%	47.9%	72.41%
Basic Earnings Per Share	$0.30		$3.09
Diluted Earnings Per Share	$0.30	$0.53	$3.01
COMMON SHARES
Basic Shares Outstanding	107.9M shares		108.2M shares
Diluted Shares Outstanding	110.0M shares		110.9M shares

Balance Sheet

Concept	2024 Q1	2023 Q4	2023
SHORT-TERM ASSETS
Cash & Short-Term Investments	$391.1M	$425.8M	$425.8M
YoY Change	33.86%	35.95%	35.95%
Cash & Equivalents	$112.6M	$94.77M	$94.77M
Short-Term Investments	$278.4M	$331.1M	$331.1M
Other Short-Term Assets	$12.38M	$34.85M	$34.85M
YoY Change	-15.25%	189.89%	189.89%
Inventory	$47.60M	$36.15M	$36.15M
Prepaid Expenses
Receivables	$86.94M	$133.8M	$133.8M
Other Receivables	$0.00	$0.00	$0.00
Total Short-Term Assets	$576.5M	$630.6M	$630.6M
YoY Change	16.98%	19.62%	19.62%
LONG-TERM ASSETS
Property, Plant & Equipment	$67.28M	$89.31M	$89.31M
YoY Change	-24.74%	3.54%	-19.11%
Goodwill	$286.8M	$286.8M
YoY Change	-1.79%	-1.79%
Intangibles	$25.52M	$28.77M
YoY Change	-45.63%	-43.46%
Long-Term Investments
YoY Change
Other Assets	$1.408M	$136.3M	$136.3M
YoY Change	-61.22%	3478.47%	325.13%
Total Long-Term Assets	$632.4M	$625.5M	$625.5M
YoY Change	34.59%	28.87%	28.87%
TOTAL ASSETS
Total Short-Term Assets	$576.5M	$630.6M	$630.6M
Total Long-Term Assets	$632.4M	$625.5M	$625.5M
Total Assets	$1.209B	$1.256B	$1.256B
YoY Change	25.58%	24.05%	24.05%
SHORT-TERM LIABILITIES
YoY Change
Accounts Payable	$24.78M	$18.07M	$18.07M
YoY Change	36.75%	-27.17%	-27.17%
Accrued Expenses	$17.41M	$21.96M	$21.96M
YoY Change	-13.79%	-13.98%	-13.98%
Deferred Revenue	$16.40M	$17.39M
YoY Change	-21.33%	-27.11%
Short-Term Debt	$0.00	$0.00	$0.00
YoY Change
Long-Term Debt Due		$0.00	$0.00
YoY Change		-100.0%	-100.0%
Total Short-Term Liabilities	$82.61M	$89.12M	$89.12M
YoY Change	-14.11%	-29.66%	-29.66%
LONG-TERM LIABILITIES
Long-Term Debt	$0.00	$0.00	$0.00
YoY Change
Other Long-Term Liabilities	$18.96M	$124.4M	$124.4M
YoY Change	-58.76%	166.75%	52.47%
Total Long-Term Liabilities	$18.96M	$124.4M	$124.4M
YoY Change	-58.76%	166.75%	52.47%
TOTAL LIABILITIES
Total Short-Term Liabilities	$82.61M	$89.12M	$89.12M
Total Long-Term Liabilities	$18.96M	$124.4M	$124.4M
Total Liabilities	$217.2M	$218.0M	$218.0M
YoY Change	8.13%	-6.54%	-6.54%
SHAREHOLDERS EQUITY
Retained Earnings	-$300.6M	-$285.5M
YoY Change	-42.35%	-44.37%
Common Stock	$1.294B	$1.325B
YoY Change	0.57%	2.11%
Preferred Stock
YoY Change
Treasury Stock (at cost)
YoY Change
Treasury Stock Shares
Shareholders Equity	$991.6M	$1.038B	$1.038B
YoY Change
Total Liabilities & Shareholders Equity	$1.209B	$1.256B	$1.256B
YoY Change	25.58%	24.05%	24.05%

Cashflow Statement

Concept	2024 Q1	2023 Q4	2023
OPERATING ACTIVITIES
Net Income	$32.90M	$58.55M	$333.9M
YoY Change	902.68%	267.08%	-2433.36%
Depreciation, Depletion And Amortization	$7.723M	$195.0K	$1.217M
YoY Change	-12.97%	-98.43%	-95.32%
Cash From Operating Activities	$39.12M	$54.89M	$195.8M
YoY Change	0.55%	7.01%	-15.02%
INVESTING ACTIVITIES
Capital Expenditures	$3.008M	$740.0K	$23.24M
YoY Change	-61.13%	-84.67%	32.97%
Acquisitions			$0.00
YoY Change			-100.0%
Other Investing Activities	$74.38M	-$87.46M	-$34.16M
YoY Change	-2606.84%	44.11%	-119.81%
Cash From Investing Activities	$71.37M	-$88.30M	-$57.40M
YoY Change	-766.7%	34.77%	-137.77%
FINANCING ACTIVITIES
Cash Dividend Paid
YoY Change
Common Stock Issuance & Retirement, Net
YoY Change
Debt Paid & Issued, Net
YoY Change
Cash From Financing Activities	-$92.35M	-4.223M	-$169.6M
YoY Change	70.35%	68.05%	-53.26%
NET CHANGE
Cash From Operating Activities	$39.12M	54.89M	$195.8M
Cash From Investing Activities	$71.37M	-88.30M	-$57.40M
Cash From Financing Activities	-$92.35M	-4.223M	-$169.6M
Net Change In Cash	$17.85M	-37.63M	-$30.93M
YoY Change	-169.13%	124.82%	-277.44%
FREE CASH FLOW
Cash From Operating Activities	$39.12M	$54.89M	$195.8M
Capital Expenditures	$3.008M	$740.0K	$23.24M
Free Cash Flow	$36.11M	$54.15M	$172.5M
YoY Change	15.86%	16.54%	-18.96%

Facts In Submission

Frame	Concept Type	Concept / XBRL Key	Value	Unit
CY2022	us-gaap	Proceeds From Maturities Prepayments And Calls Of Available For Sale Securities ProceedsFromMaturitiesPrepaymentsAndCallsOfAvailableForSaleSecurities	59642000	usd
CY2023	us-gaap	Proceeds From Sale Of Available For Sale Securities Debt ProceedsFromSaleOfAvailableForSaleSecuritiesDebt	117798000	usd
CY2022	us-gaap	Proceeds From Sale Of Available For Sale Securities Debt ProceedsFromSaleOfAvailableForSaleSecuritiesDebt	276687000	usd
CY2023	dei	Entity Central Index Key EntityCentralIndexKey	0000917273
CY2023	dei	Amendment Flag AmendmentFlag	false
CY2023Q4	us-gaap	Intangible Assets Net Excluding Goodwill IntangibleAssetsNetExcludingGoodwill	28769000	usd
CY2022Q4	us-gaap	Intangible Assets Net Excluding Goodwill IntangibleAssetsNetExcludingGoodwill	50880000	usd
CY2023Q4	us-gaap	Goodwill Goodwill	286812000	usd
CY2023	dei	Current Fiscal Year End Date CurrentFiscalYearEndDate	--12-31
CY2023	dei	Document Fiscal Year Focus DocumentFiscalYearFocus	2023
CY2023	dei	Document Fiscal Period Focus DocumentFiscalPeriodFocus	FY
CY2023	dei	Document Annual Report DocumentAnnualReport	true
CY2023	dei	Entity Well Known Seasoned Issuer EntityWellKnownSeasonedIssuer	Yes
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	5000000000	usd
CY2024Q1	dei	Entity Common Stock Shares Outstanding EntityCommonStockSharesOutstanding	107887603	shares
CY2023Q4	ecd	Rule10b51 Arr Adopted Flag Rule10b51ArrAdoptedFlag	false
CY2023Q4	ecd	Rule10b51 Arr Trmntd Flag Rule10b51ArrTrmntdFlag	false
CY2023	dei	Auditor Firm AuditorFirmId	238
CY2023	dei	Auditor Name AuditorName	PricewaterhouseCoopers LLP
CY2023	dei	Auditor Location AuditorLocation	San Jose, California
CY2023Q4	us-gaap	Cash And Cash Equivalents Fair Value Disclosure CashAndCashEquivalentsFairValueDisclosure	94767000	usd
CY2022Q4	us-gaap	Cash And Cash Equivalents Fair Value Disclosure CashAndCashEquivalentsFairValueDisclosure	125334000	usd
CY2023Q4	us-gaap	Available For Sale Securities Debt Securities Current AvailableForSaleSecuritiesDebtSecuritiesCurrent	331077000	usd
CY2022Q4	us-gaap	Available For Sale Securities Debt Securities Current AvailableForSaleSecuritiesDebtSecuritiesCurrent	187892000	usd
CY2023Q4	us-gaap	Accounts Receivable Net Current AccountsReceivableNetCurrent	82925000	usd
CY2022Q4	us-gaap	Accounts Receivable Net Current AccountsReceivableNetCurrent	55368000	usd
CY2023Q4	us-gaap	Unbilled Receivables Current UnbilledReceivablesCurrent	50872000	usd
CY2022Q4	us-gaap	Unbilled Receivables Current UnbilledReceivablesCurrent	125698000	usd
CY2023Q4	us-gaap	Inventory Net InventoryNet	36154000	usd
CY2022Q4	us-gaap	Inventory Net InventoryNet	20900000	usd
CY2023Q4	us-gaap	Prepaid Expense And Other Assets Current PrepaidExpenseAndOtherAssetsCurrent	34850000	usd
CY2022Q4	us-gaap	Prepaid Expense And Other Assets Current PrepaidExpenseAndOtherAssetsCurrent	12022000	usd
CY2023Q4	us-gaap	Assets Current AssetsCurrent	630645000	usd
CY2022Q4	us-gaap	Assets Current AssetsCurrent	527214000	usd
CY2022Q4	us-gaap	Goodwill Goodwill	292040000	usd
CY2023Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	67808000	usd
CY2022Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	86255000	usd
CY2023Q4	us-gaap	Operating Lease Right Of Use Asset OperatingLeaseRightOfUseAsset	21497000	usd
CY2022Q4	us-gaap	Operating Lease Right Of Use Asset OperatingLeaseRightOfUseAsset	24143000	usd
CY2023Q4	us-gaap	Contract With Customer Asset Net Noncurrent ContractWithCustomerAssetNetNoncurrent	4423000	usd
CY2022Q4	us-gaap	Contract With Customer Asset Net Noncurrent ContractWithCustomerAssetNetNoncurrent	25222000	usd
CY2023Q4	us-gaap	Deferred Income Tax Assets Net DeferredIncomeTaxAssetsNet	127892000	usd
CY2022Q4	us-gaap	Deferred Income Tax Assets Net DeferredIncomeTaxAssetsNet	3031000	usd
CY2023Q4	us-gaap	Income Tax Receivable IncomeTaxReceivable	88768000	usd
CY2022Q4	us-gaap	Income Tax Receivable IncomeTaxReceivable	1064000	usd
CY2023Q4	us-gaap	Other Assets Noncurrent OtherAssetsNoncurrent	1613000	usd
CY2022Q4	us-gaap	Other Assets Noncurrent OtherAssetsNoncurrent	2745000	usd
CY2023Q4	us-gaap	Assets Assets	1258227000	usd
CY2022Q4	us-gaap	Assets Assets	1012594000	usd
CY2023Q4	us-gaap	Accounts Payable Current AccountsPayableCurrent	18074000	usd
CY2022Q4	us-gaap	Accounts Payable Current AccountsPayableCurrent	24815000	usd
CY2023Q4	us-gaap	Employee Related Liabilities Current EmployeeRelatedLiabilitiesCurrent	17504000	usd
CY2022Q4	us-gaap	Employee Related Liabilities Current EmployeeRelatedLiabilitiesCurrent	20502000	usd
CY2023Q4	us-gaap	Convertible Notes Payable Current ConvertibleNotesPayableCurrent	0	usd
CY2022Q4	us-gaap	Convertible Notes Payable Current ConvertibleNotesPayableCurrent	10378000	usd
CY2023Q4	us-gaap	Deferred Revenue Current DeferredRevenueCurrent	17393000	usd
CY2022Q4	us-gaap	Deferred Revenue Current DeferredRevenueCurrent	23861000	usd
CY2023Q4	us-gaap	Accrued Income Taxes Current AccruedIncomeTaxesCurrent	5099000	usd
CY2022Q4	us-gaap	Accrued Income Taxes Current AccruedIncomeTaxesCurrent	18137000	usd
CY2023Q4	us-gaap	Operating Lease Liability Current OperatingLeaseLiabilityCurrent	4453000	usd
CY2022Q4	us-gaap	Operating Lease Liability Current OperatingLeaseLiabilityCurrent	5024000	usd
CY2023Q4	us-gaap	Other Accrued Liabilities Current OtherAccruedLiabilitiesCurrent	26598000	usd
CY2022Q4	us-gaap	Other Accrued Liabilities Current OtherAccruedLiabilitiesCurrent	23992000	usd
CY2023Q4	us-gaap	Liabilities Current LiabilitiesCurrent	89121000	usd
CY2022Q4	us-gaap	Liabilities Current LiabilitiesCurrent	126709000	usd
CY2023Q4	us-gaap	Operating Lease Liability Noncurrent OperatingLeaseLiabilityNoncurrent	26255000	usd
CY2022Q4	us-gaap	Operating Lease Liability Noncurrent OperatingLeaseLiabilityNoncurrent	29079000	usd
CY2023Q4	us-gaap	Accrued Income Taxes Noncurrent AccruedIncomeTaxesNoncurrent	78947000	usd
CY2022Q4	us-gaap	Accrued Income Taxes Noncurrent AccruedIncomeTaxesNoncurrent	5892000	usd
CY2023Q4	us-gaap	Deferred Income Tax Liabilities Net DeferredIncomeTaxLiabilitiesNet	4462000	usd
CY2022Q4	us-gaap	Deferred Income Tax Liabilities Net DeferredIncomeTaxLiabilitiesNet	24964000	usd
CY2023Q4	us-gaap	Other Liabilities Noncurrent OtherLiabilitiesNoncurrent	21341000	usd
CY2022Q4	us-gaap	Other Liabilities Noncurrent OtherLiabilitiesNoncurrent	46653000	usd
CY2023Q4	us-gaap	Liabilities Liabilities	220126000	usd
CY2022Q4	us-gaap	Liabilities Liabilities	233297000	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	0.001
CY2022Q4	us-gaap	Preferred Stock Par Or Stated Value Per Share PreferredStockParOrStatedValuePerShare	0.001
CY2023Q4	us-gaap	Preferred Stock Shares Authorized PreferredStockSharesAuthorized	5000000	shares
CY2022Q4	us-gaap	Preferred Stock Shares Authorized PreferredStockSharesAuthorized	5000000	shares
CY2022Q4	us-gaap	Preferred Stock Shares Outstanding PreferredStockSharesOutstanding	0	shares
CY2023Q4	us-gaap	Preferred Stock Shares Outstanding PreferredStockSharesOutstanding	0	shares
CY2022Q4	us-gaap	Preferred Stock Shares Issued PreferredStockSharesIssued	0	shares
CY2023Q4	us-gaap	Preferred Stock Shares Issued PreferredStockSharesIssued	0	shares
CY2023Q4	us-gaap	Preferred Stock Value PreferredStockValue	0	usd
CY2022Q4	us-gaap	Preferred Stock Value PreferredStockValue	0	usd
CY2023Q4	us-gaap	Common Stock Par Or Stated Value Per Share CommonStockParOrStatedValuePerShare	0.001
CY2022Q4	us-gaap	Common Stock Par Or Stated Value Per Share CommonStockParOrStatedValuePerShare	0.001
CY2023Q4	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	500000000	shares
CY2022Q4	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	500000000	shares
CY2023Q4	us-gaap	Common Stock Shares Issued CommonStockSharesIssued	107853778	shares
CY2023Q4	us-gaap	Common Stock Shares Outstanding CommonStockSharesOutstanding	107853778	shares
CY2022Q4	us-gaap	Common Stock Shares Outstanding CommonStockSharesOutstanding	107610356	shares
CY2022Q4	us-gaap	Common Stock Shares Issued CommonStockSharesIssued	107610356	shares
CY2023Q4	us-gaap	Common Stock Value CommonStockValue	108000	usd
CY2022Q4	us-gaap	Common Stock Value CommonStockValue	108000	usd
CY2023Q4	us-gaap	Additional Paid In Capital Common Stock AdditionalPaidInCapitalCommonStock	1324796000	usd
CY2022Q4	us-gaap	Additional Paid In Capital Common Stock AdditionalPaidInCapitalCommonStock	1297408000	usd
CY2023Q4	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	-285534000	usd
CY2022Q4	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	-513256000	usd
CY2023Q4	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	-1269000	usd
CY2022Q4	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	-4963000	usd
CY2023Q4	us-gaap	Stockholders Equity StockholdersEquity	1038101000	usd
CY2022Q4	us-gaap	Stockholders Equity StockholdersEquity	779297000	usd
CY2023Q4	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	1258227000	usd
CY2022Q4	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	1012594000	usd
CY2023	us-gaap	Revenue From Contract With Customer Including Assessed Tax RevenueFromContractWithCustomerIncludingAssessedTax	461117000	usd
CY2022	us-gaap	Revenue From Contract With Customer Including Assessed Tax RevenueFromContractWithCustomerIncludingAssessedTax	454793000	usd
CY2021	us-gaap	Revenue From Contract With Customer Including Assessed Tax RevenueFromContractWithCustomerIncludingAssessedTax	328304000	usd
CY2023	rmbs	Cost Of Product Revenue CostOfProductRevenue	84495000	usd
CY2022	rmbs	Cost Of Product Revenue CostOfProductRevenue	88976000	usd
CY2021	rmbs	Cost Of Product Revenue CostOfProductRevenue	49397000	usd
CY2023	rmbs	Cost Of Contract And Other Revenue CostOfContractAndOtherRevenue	5403000	usd
CY2022	rmbs	Cost Of Contract And Other Revenue CostOfContractAndOtherRevenue	4668000	usd
CY2021	rmbs	Cost Of Contract And Other Revenue CostOfContractAndOtherRevenue	4756000	usd
CY2023	rmbs	Amortization Of Acquired Intangible Assets Cost Of Revenue AmortizationOfAcquiredIntangibleAssetsCostOfRevenue	13524000	usd
CY2022	rmbs	Amortization Of Acquired Intangible Assets Cost Of Revenue AmortizationOfAcquiredIntangibleAssetsCostOfRevenue	13935000	usd
CY2021	rmbs	Amortization Of Acquired Intangible Assets Cost Of Revenue AmortizationOfAcquiredIntangibleAssetsCostOfRevenue	16241000	usd
CY2023	us-gaap	Cost Of Revenue CostOfRevenue	103422000	usd
CY2022	us-gaap	Cost Of Revenue CostOfRevenue	107579000	usd
CY2021	us-gaap	Cost Of Revenue CostOfRevenue	70394000	usd
CY2023	us-gaap	Gross Profit GrossProfit	357695000	usd
CY2022	us-gaap	Gross Profit GrossProfit	347214000	usd
CY2021	us-gaap	Gross Profit GrossProfit	257910000	usd
CY2023	us-gaap	Research And Development Expense ResearchAndDevelopmentExpense	156827000	usd
CY2022	us-gaap	Research And Development Expense ResearchAndDevelopmentExpense	158769000	usd
CY2021	us-gaap	Research And Development Expense ResearchAndDevelopmentExpense	135678000	usd
CY2023	us-gaap	Selling General And Administrative Expense SellingGeneralAndAdministrativeExpense	108149000	usd
CY2022	us-gaap	Selling General And Administrative Expense SellingGeneralAndAdministrativeExpense	106718000	usd
CY2021	us-gaap	Selling General And Administrative Expense SellingGeneralAndAdministrativeExpense	91057000	usd
CY2023	rmbs	Amortization Of Acquired Intangible Assets Operating Expenses AmortizationOfAcquiredIntangibleAssetsOperatingExpenses	1217000	usd
CY2022	rmbs	Amortization Of Acquired Intangible Assets Operating Expenses AmortizationOfAcquiredIntangibleAssetsOperatingExpenses	1674000	usd
CY2021	rmbs	Amortization Of Acquired Intangible Assets Operating Expenses AmortizationOfAcquiredIntangibleAssetsOperatingExpenses	1226000	usd
CY2023	us-gaap	Restructuring Charges RestructuringCharges	9368000	usd
CY2022	us-gaap	Restructuring Charges RestructuringCharges	0	usd
CY2021	us-gaap	Restructuring Charges RestructuringCharges	368000	usd
CY2023	us-gaap	Disposal Group Not Discontinued Operation Gain Loss On Disposal DisposalGroupNotDiscontinuedOperationGainLossOnDisposal	90784000	usd
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CY2021	us-gaap	Disposal Group Not Discontinued Operation Gain Loss On Disposal DisposalGroupNotDiscontinuedOperationGainLossOnDisposal	0	usd
CY2023	us-gaap	Other Asset Impairment Charges OtherAssetImpairmentCharges	10045000	usd
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CY2023	us-gaap	Business Combination Contingent Consideration Arrangements Change In Amount Of Contingent Consideration Liability1 BusinessCombinationContingentConsiderationArrangementsChangeInAmountOfContingentConsiderationLiability1	9234000	usd
CY2022	us-gaap	Business Combination Contingent Consideration Arrangements Change In Amount Of Contingent Consideration Liability1 BusinessCombinationContingentConsiderationArrangementsChangeInAmountOfContingentConsiderationLiability1	3111000	usd
CY2021	us-gaap	Business Combination Contingent Consideration Arrangements Change In Amount Of Contingent Consideration Liability1 BusinessCombinationContingentConsiderationArrangementsChangeInAmountOfContingentConsiderationLiability1	5300000	usd
CY2023	us-gaap	Operating Expenses OperatingExpenses	204056000	usd
CY2022	us-gaap	Operating Expenses OperatingExpenses	270272000	usd
CY2021	us-gaap	Operating Expenses OperatingExpenses	233629000	usd
CY2023	us-gaap	Operating Income Loss OperatingIncomeLoss	153639000	usd
CY2022	us-gaap	Operating Income Loss OperatingIncomeLoss	76942000	usd
CY2021	us-gaap	Operating Income Loss OperatingIncomeLoss	24281000	usd
CY2023	us-gaap	Other Nonoperating Income OtherNonoperatingIncome	11327000	usd
CY2022	us-gaap	Other Nonoperating Income OtherNonoperatingIncome	7771000	usd
CY2021	us-gaap	Other Nonoperating Income OtherNonoperatingIncome	9711000	usd
CY2023	us-gaap	Equity Securities Fv Ni Realized Gain Loss EquitySecuritiesFvNiRealizedGainLoss	0	usd
CY2022	us-gaap	Equity Securities Fv Ni Realized Gain Loss EquitySecuritiesFvNiRealizedGainLoss	3547000	usd
CY2021	us-gaap	Equity Securities Fv Ni Realized Gain Loss EquitySecuritiesFvNiRealizedGainLoss	0	usd
CY2023	us-gaap	Gains Losses On Extinguishment Of Debt GainsLossesOnExtinguishmentOfDebt	0	usd
CY2022	us-gaap	Gains Losses On Extinguishment Of Debt GainsLossesOnExtinguishmentOfDebt	-83626000	usd
CY2021	us-gaap	Gains Losses On Extinguishment Of Debt GainsLossesOnExtinguishmentOfDebt	0	usd
CY2023	us-gaap	Derivative Gain Loss On Derivative Net DerivativeGainLossOnDerivativeNet	-240000	usd
CY2022	us-gaap	Derivative Gain Loss On Derivative Net DerivativeGainLossOnDerivativeNet	-10585000	usd
CY2021	us-gaap	Derivative Gain Loss On Derivative Net DerivativeGainLossOnDerivativeNet	0	usd
CY2023	us-gaap	Equity Method Investment Realized Gain Loss On Disposal EquityMethodInvestmentRealizedGainLossOnDisposal	23924000	usd
CY2023	us-gaap	Interest Expense InterestExpense	1490000	usd
CY2022	us-gaap	Interest Expense InterestExpense	1874000	usd
CY2021	us-gaap	Interest Expense InterestExpense	10706000	usd
CY2023	us-gaap	Nonoperating Income Expense NonoperatingIncomeExpense	33521000	usd
CY2022	us-gaap	Nonoperating Income Expense NonoperatingIncomeExpense	-84767000	usd
CY2021	us-gaap	Nonoperating Income Expense NonoperatingIncomeExpense	-995000	usd
CY2023	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	187160000	usd
CY2022	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	-7825000	usd
CY2021	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	23286000	usd
CY2023	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	-146744000	usd
CY2022	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	6485000	usd
CY2021	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	4952000	usd
CY2023	us-gaap	Net Income Loss NetIncomeLoss	333904000	usd
CY2022	us-gaap	Net Income Loss NetIncomeLoss	-14310000	usd
CY2021	us-gaap	Net Income Loss NetIncomeLoss	18334000	usd
CY2023	us-gaap	Earnings Per Share Basic Undistributed EarningsPerShareBasicUndistributed	3.09
CY2022	us-gaap	Earnings Per Share Basic Undistributed EarningsPerShareBasicUndistributed	-0.13
CY2021	us-gaap	Earnings Per Share Basic Undistributed EarningsPerShareBasicUndistributed	0.17
CY2023	us-gaap	Earnings Per Share Diluted Undistributed EarningsPerShareDilutedUndistributed	3.01
CY2022	us-gaap	Earnings Per Share Diluted Undistributed EarningsPerShareDilutedUndistributed	-0.13
CY2021	us-gaap	Earnings Per Share Diluted Undistributed EarningsPerShareDilutedUndistributed	0.16
CY2023	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	108183000	shares
CY2022	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	109472000	shares
CY2021	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	110538000	shares
CY2023	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	110889000	shares
CY2022	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	109472000	shares
CY2021	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	114865000	shares
CY2023	us-gaap	Net Income Loss NetIncomeLoss	333904000	usd
CY2022	us-gaap	Net Income Loss NetIncomeLoss	-14310000	usd
CY2021	us-gaap	Net Income Loss NetIncomeLoss	18334000	usd
CY2023	us-gaap	Other Comprehensive Income Loss Foreign Currency Transaction And Translation Adjustment Net Of Tax OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax	282000	usd
CY2022	us-gaap	Other Comprehensive Income Loss Foreign Currency Transaction And Translation Adjustment Net Of Tax OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax	-958000	usd
CY2021	us-gaap	Other Comprehensive Income Loss Foreign Currency Transaction And Translation Adjustment Net Of Tax OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax	-366000	usd
CY2023	us-gaap	Marketable Securities Unrealized Gain Loss MarketableSecuritiesUnrealizedGainLoss	3412000	usd
CY2022	us-gaap	Marketable Securities Unrealized Gain Loss MarketableSecuritiesUnrealizedGainLoss	-2553000	usd
CY2021	us-gaap	Marketable Securities Unrealized Gain Loss MarketableSecuritiesUnrealizedGainLoss	-1005000	usd
CY2023	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	337598000	usd
CY2022	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	-17821000	usd
CY2021	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	16963000	usd
CY2020Q4	us-gaap	Stockholders Equity StockholdersEquity	912706000	usd
CY2021	us-gaap	Net Income Loss NetIncomeLoss	18334000	usd
CY2021	us-gaap	Other Comprehensive Income Loss Foreign Currency Transaction And Translation Adjustment Net Of Tax OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax	-366000	usd
CY2021	us-gaap	Marketable Securities Unrealized Gain Loss MarketableSecuritiesUnrealizedGainLoss	-1005000	usd
CY2021	us-gaap	Stock Issued During Period Value Share Based Compensation StockIssuedDuringPeriodValueShareBasedCompensation	-1656000	usd
CY2021	us-gaap	Stock Issued During Period Value Acquisitions StockIssuedDuringPeriodValueAcquisitions	6978000	usd
CY2021	us-gaap	Stock Repurchased And Retired During Period Value StockRepurchasedAndRetiredDuringPeriodValue	100081000	usd
CY2021	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	27486000	usd
CY2021Q4	us-gaap	Stockholders Equity StockholdersEquity	862396000	usd
CY2022	us-gaap	Net Income Loss NetIncomeLoss	-14310000	usd
CY2022	us-gaap	Other Comprehensive Income Loss Foreign Currency Transaction And Translation Adjustment Net Of Tax OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax	-958000	usd
CY2022	us-gaap	Marketable Securities Unrealized Gain Loss MarketableSecuritiesUnrealizedGainLoss	-2553000	usd
CY2022	us-gaap	Stock Issued During Period Value Share Based Compensation StockIssuedDuringPeriodValueShareBasedCompensation	-12277000	usd
CY2022	us-gaap	Stock Repurchased And Retired During Period Value StockRepurchasedAndRetiredDuringPeriodValue	100421000	usd
CY2022	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	35552000	usd
CY2022	rmbs	Adjustments To Additional Paid In Capital Retirement Of Convertible Senior Note Hedges AdjustmentsToAdditionalPaidInCapitalRetirementOfConvertibleSeniorNoteHedges	-78415000	usd
CY2022	rmbs	Adjustments To Additional Paid In Capital Retirement Of Warrants AdjustmentsToAdditionalPaidInCapitalRetirementOfWarrants	58423000	usd
CY2023	us-gaap	Stock Repurchased And Retired During Period Value StockRepurchasedAndRetiredDuringPeriodValue	100526000	usd
CY2023	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	45011000	usd
CY2023	rmbs	Stock Issued During Period Value Payment Of Earn Out Related To Acquisition StockIssuedDuringPeriodValuePaymentOfEarnOutRelatedToAcquisition	16556000	usd
CY2023	rmbs	Adjustments To Additional Paid In Capital Retirement Of Warrants AdjustmentsToAdditionalPaidInCapitalRetirementOfWarrants	10457000	usd
CY2023Q4	us-gaap	Stockholders Equity StockholdersEquity	1038101000	usd
CY2023	us-gaap	Net Income Loss NetIncomeLoss	333904000	usd
CY2022	us-gaap	Net Income Loss NetIncomeLoss	-14310000	usd
CY2021	us-gaap	Net Income Loss NetIncomeLoss	18334000	usd
CY2023	us-gaap	Share Based Compensation ShareBasedCompensation	45011000	usd
CY2022	us-gaap	Share Based Compensation ShareBasedCompensation	35552000	usd
CY2021	us-gaap	Share Based Compensation ShareBasedCompensation	27486000	usd
CY2023	us-gaap	Operating Lease Right Of Use Asset Amortization Expense OperatingLeaseRightOfUseAssetAmortizationExpense	33687000	usd
CY2022	us-gaap	Operating Lease Right Of Use Asset Amortization Expense OperatingLeaseRightOfUseAssetAmortizationExpense	31517000	usd
CY2021	us-gaap	Operating Lease Right Of Use Asset Amortization Expense OperatingLeaseRightOfUseAssetAmortizationExpense	26810000	usd
CY2023	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	14741000	usd
CY2022	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	15610000	usd
CY2021	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	17467000	usd
CY2023	us-gaap	Amortization Of Financing Costs And Discounts AmortizationOfFinancingCostsAndDiscounts	3000	usd
CY2022	us-gaap	Amortization Of Financing Costs And Discounts AmortizationOfFinancingCostsAndDiscounts	207000	usd
CY2021	us-gaap	Amortization Of Financing Costs And Discounts AmortizationOfFinancingCostsAndDiscounts	7656000	usd
CY2023	us-gaap	Gains Losses On Extinguishment Of Debt GainsLossesOnExtinguishmentOfDebt	0	usd
CY2022	us-gaap	Gains Losses On Extinguishment Of Debt GainsLossesOnExtinguishmentOfDebt	-83626000	usd
CY2021	us-gaap	Gains Losses On Extinguishment Of Debt GainsLossesOnExtinguishmentOfDebt	0	usd
CY2023	us-gaap	Derivative Gain Loss On Derivative Net DerivativeGainLossOnDerivativeNet	-240000	usd
CY2022	us-gaap	Derivative Gain Loss On Derivative Net DerivativeGainLossOnDerivativeNet	-10585000	usd
CY2021	us-gaap	Derivative Gain Loss On Derivative Net DerivativeGainLossOnDerivativeNet	0	usd
CY2022	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	689000	usd
CY2021	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	1522000	usd
CY2023	us-gaap	Disposal Group Not Discontinued Operation Gain Loss On Disposal DisposalGroupNotDiscontinuedOperationGainLossOnDisposal	90784000	usd
CY2022	us-gaap	Disposal Group Not Discontinued Operation Gain Loss On Disposal DisposalGroupNotDiscontinuedOperationGainLossOnDisposal	0	usd
CY2021	us-gaap	Disposal Group Not Discontinued Operation Gain Loss On Disposal DisposalGroupNotDiscontinuedOperationGainLossOnDisposal	0	usd
CY2023	us-gaap	Gain Loss On Sale Of Stock In Subsidiary Or Equity Method Investee GainLossOnSaleOfStockInSubsidiaryOrEquityMethodInvestee	23924000	usd
CY2022	us-gaap	Gain Loss On Sale Of Stock In Subsidiary Or Equity Method Investee GainLossOnSaleOfStockInSubsidiaryOrEquityMethodInvestee	0	usd
CY2021	us-gaap	Gain Loss On Sale Of Stock In Subsidiary Or Equity Method Investee GainLossOnSaleOfStockInSubsidiaryOrEquityMethodInvestee	0	usd
CY2023	us-gaap	Other Asset Impairment Charges OtherAssetImpairmentCharges	10045000	usd
CY2022	us-gaap	Other Asset Impairment Charges OtherAssetImpairmentCharges	0	usd
CY2021	us-gaap	Other Asset Impairment Charges OtherAssetImpairmentCharges	0	usd
CY2023	us-gaap	Equity Securities Fv Ni Realized Gain Loss EquitySecuritiesFvNiRealizedGainLoss	0	usd
CY2022	us-gaap	Equity Securities Fv Ni Realized Gain Loss EquitySecuritiesFvNiRealizedGainLoss	3547000	usd
CY2021	us-gaap	Equity Securities Fv Ni Realized Gain Loss EquitySecuritiesFvNiRealizedGainLoss	0	usd
CY2023	us-gaap	Business Combination Contingent Consideration Arrangements Change In Amount Of Contingent Consideration Liability1 BusinessCombinationContingentConsiderationArrangementsChangeInAmountOfContingentConsiderationLiability1	9234000	usd
CY2022	us-gaap	Business Combination Contingent Consideration Arrangements Change In Amount Of Contingent Consideration Liability1 BusinessCombinationContingentConsiderationArrangementsChangeInAmountOfContingentConsiderationLiability1	3111000	usd
CY2021	us-gaap	Business Combination Contingent Consideration Arrangements Change In Amount Of Contingent Consideration Liability1 BusinessCombinationContingentConsiderationArrangementsChangeInAmountOfContingentConsiderationLiability1	5300000	usd
CY2023	us-gaap	Other Operating Activities Cash Flow Statement OtherOperatingActivitiesCashFlowStatement	645000	usd
CY2022	us-gaap	Other Operating Activities Cash Flow Statement OtherOperatingActivitiesCashFlowStatement	2413000	usd
CY2021	us-gaap	Other Operating Activities Cash Flow Statement OtherOperatingActivitiesCashFlowStatement	989000	usd
CY2023	us-gaap	Increase Decrease In Accounts Receivable IncreaseDecreaseInAccountsReceivable	28931000	usd
CY2022	us-gaap	Increase Decrease In Accounts Receivable IncreaseDecreaseInAccountsReceivable	9274000	usd
CY2021	us-gaap	Increase Decrease In Accounts Receivable IncreaseDecreaseInAccountsReceivable	13521000	usd
CY2023	us-gaap	Increase Decrease In Contract With Customer Asset IncreaseDecreaseInContractWithCustomerAsset	-93796000	usd
CY2022	us-gaap	Increase Decrease In Contract With Customer Asset IncreaseDecreaseInContractWithCustomerAsset	-107945000	usd
CY2021	us-gaap	Increase Decrease In Contract With Customer Asset IncreaseDecreaseInContractWithCustomerAsset	-118452000	usd
CY2023	us-gaap	Increase Decrease In Prepaid Deferred Expense And Other Assets IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets	-2763000	usd
CY2022	us-gaap	Increase Decrease In Prepaid Deferred Expense And Other Assets IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets	89000	usd
CY2021	us-gaap	Increase Decrease In Prepaid Deferred Expense And Other Assets IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets	-6903000	usd
CY2023	us-gaap	Increase Decrease In Inventories IncreaseDecreaseInInventories	15254000	usd
CY2022	us-gaap	Increase Decrease In Inventories IncreaseDecreaseInInventories	12702000	usd
CY2021	us-gaap	Increase Decrease In Inventories IncreaseDecreaseInInventories	-6109000	usd
CY2023	us-gaap	Increase Decrease In Income Taxes Receivable IncreaseDecreaseInIncomeTaxesReceivable	87704000	usd
CY2022	us-gaap	Increase Decrease In Income Taxes Receivable IncreaseDecreaseInIncomeTaxesReceivable	618000	usd
CY2021	us-gaap	Increase Decrease In Income Taxes Receivable IncreaseDecreaseInIncomeTaxesReceivable	240000	usd
CY2023	us-gaap	Increase Decrease In Accounts Payable IncreaseDecreaseInAccountsPayable	-5768000	usd
CY2022	us-gaap	Increase Decrease In Accounts Payable IncreaseDecreaseInAccountsPayable	11975000	usd
CY2021	us-gaap	Increase Decrease In Accounts Payable IncreaseDecreaseInAccountsPayable	2195000	usd
CY2023	us-gaap	Increase Decrease In Other Operating Liabilities IncreaseDecreaseInOtherOperatingLiabilities	41000	usd
CY2022	us-gaap	Increase Decrease In Other Operating Liabilities IncreaseDecreaseInOtherOperatingLiabilities	-4745000	usd
CY2021	us-gaap	Increase Decrease In Other Operating Liabilities IncreaseDecreaseInOtherOperatingLiabilities	-1642000	usd
CY2023	us-gaap	Increase Decrease In Accrued Income Taxes Payable IncreaseDecreaseInAccruedIncomeTaxesPayable	59643000	usd
CY2022	us-gaap	Increase Decrease In Accrued Income Taxes Payable IncreaseDecreaseInAccruedIncomeTaxesPayable	-19279000	usd
CY2021	us-gaap	Increase Decrease In Accrued Income Taxes Payable IncreaseDecreaseInAccruedIncomeTaxesPayable	-25309000	usd
CY2023	us-gaap	Increase Decrease In Deferred Revenue IncreaseDecreaseInDeferredRevenue	-5048000	usd
CY2022	us-gaap	Increase Decrease In Deferred Revenue IncreaseDecreaseInDeferredRevenue	-1354000	usd
CY2021	us-gaap	Increase Decrease In Deferred Revenue IncreaseDecreaseInDeferredRevenue	15496000	usd
CY2023	rmbs	Increasedecreaseinoperatingleaseliabilities Increasedecreaseinoperatingleaseliabilities	5204000	usd
CY2022	rmbs	Increasedecreaseinoperatingleaseliabilities Increasedecreaseinoperatingleaseliabilities	6919000	usd
CY2021	rmbs	Increasedecreaseinoperatingleaseliabilities Increasedecreaseinoperatingleaseliabilities	4790000	usd
CY2023	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	195786000	usd
CY2022	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	230393000	usd
CY2021	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	209217000	usd
CY2023	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	23240000	usd
CY2022	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	17478000	usd
CY2021	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	13792000	usd
CY2023	us-gaap	Payments To Acquire Intangible Assets PaymentsToAcquireIntangibleAssets	0	usd
CY2022	us-gaap	Payments To Acquire Intangible Assets PaymentsToAcquireIntangibleAssets	3000000	usd
CY2021	us-gaap	Payments To Acquire Intangible Assets PaymentsToAcquireIntangibleAssets	0	usd
CY2023	us-gaap	Payments To Acquire Available For Sale Securities Debt PaymentsToAcquireAvailableForSaleSecuritiesDebt	434155000	usd
CY2022	us-gaap	Payments To Acquire Available For Sale Securities Debt PaymentsToAcquireAvailableForSaleSecuritiesDebt	150949000	usd
CY2021	us-gaap	Payments To Acquire Available For Sale Securities Debt PaymentsToAcquireAvailableForSaleSecuritiesDebt	567947000	usd
CY2023	us-gaap	Proceeds From Maturities Prepayments And Calls Of Available For Sale Securities ProceedsFromMaturitiesPrepaymentsAndCallsOfAvailableForSaleSecurities	175854000	usd
CY2021	us-gaap	Proceeds From Maturities Prepayments And Calls Of Available For Sale Securities ProceedsFromMaturitiesPrepaymentsAndCallsOfAvailableForSaleSecurities	336154000	usd
CY2021	us-gaap	Proceeds From Sale Of Available For Sale Securities Debt ProceedsFromSaleOfAvailableForSaleSecuritiesDebt	227045000	usd
CY2023	us-gaap	Proceeds From Divestiture Of Businesses Net Of Cash Divested ProceedsFromDivestitureOfBusinessesNetOfCashDivested	106347000	usd
CY2022	us-gaap	Proceeds From Divestiture Of Businesses Net Of Cash Divested ProceedsFromDivestitureOfBusinessesNetOfCashDivested	0	usd
CY2021	us-gaap	Proceeds From Divestiture Of Businesses Net Of Cash Divested ProceedsFromDivestitureOfBusinessesNetOfCashDivested	0	usd
CY2023	us-gaap	Proceeds From Sale Of Equity Securities Fv Ni ProceedsFromSaleOfEquitySecuritiesFvNi	0	usd
CY2022	us-gaap	Proceeds From Sale Of Equity Securities Fv Ni ProceedsFromSaleOfEquitySecuritiesFvNi	3009000	usd
CY2021	us-gaap	Proceeds From Sale Of Equity Securities Fv Ni ProceedsFromSaleOfEquitySecuritiesFvNi	0	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	15932000	usd
CY2021	us-gaap	Payments To Acquire Businesses Net Of Cash Acquired PaymentsToAcquireBusinessesNetOfCashAcquired	97115000	usd
CY2023	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-57396000	usd
CY2022	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	151979000	usd
CY2021	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-115655000	usd
CY2023	us-gaap	Proceeds From Issuance Of Shares Under Incentive And Share Based Compensation Plans Including Stock Options ProceedsFromIssuanceOfSharesUnderIncentiveAndShareBasedCompensationPlansIncludingStockOptions	8950000	usd
CY2022	us-gaap	Proceeds From Issuance Of Shares Under Incentive And Share Based Compensation Plans Including Stock Options ProceedsFromIssuanceOfSharesUnderIncentiveAndShareBasedCompensationPlansIncludingStockOptions	6136000	usd
CY2021	us-gaap	Proceeds From Issuance Of Shares Under Incentive And Share Based Compensation Plans Including Stock Options ProceedsFromIssuanceOfSharesUnderIncentiveAndShareBasedCompensationPlansIncludingStockOptions	8957000	usd
CY2023	us-gaap	Payments Related To Tax Withholding For Share Based Compensation PaymentsRelatedToTaxWithholdingForShareBasedCompensation	38328000	usd
CY2022	us-gaap	Payments Related To Tax Withholding For Share Based Compensation PaymentsRelatedToTaxWithholdingForShareBasedCompensation	18413000	usd
CY2021	us-gaap	Payments Related To Tax Withholding For Share Based Compensation PaymentsRelatedToTaxWithholdingForShareBasedCompensation	10613000	usd
CY2023	rmbs	Payments Under Installment PaymentsUnderInstallment	16192000	usd
CY2022	rmbs	Payments Under Installment PaymentsUnderInstallment	14378000	usd
CY2021	rmbs	Payments Under Installment PaymentsUnderInstallment	12472000	usd
CY2023	us-gaap	Repayments Of Senior Debt RepaymentsOfSeniorDebt	10381000	usd
CY2022	us-gaap	Repayments Of Senior Debt RepaymentsOfSeniorDebt	258060000	usd
CY2021	us-gaap	Repayments Of Senior Debt RepaymentsOfSeniorDebt	0	usd
CY2023	rmbs	Proceeds From Retirement Of Convertible Senior Note Hedges ProceedsFromRetirementOfConvertibleSeniorNoteHedges	0	usd
CY2022	rmbs	Proceeds From Retirement Of Convertible Senior Note Hedges ProceedsFromRetirementOfConvertibleSeniorNoteHedges	91729000	usd
CY2021	rmbs	Proceeds From Retirement Of Convertible Senior Note Hedges ProceedsFromRetirementOfConvertibleSeniorNoteHedges	0	usd
CY2023	rmbs	Payments For Retirement Of Warrants PaymentsForRetirementOfWarrants	10697000	usd
CY2022	rmbs	Payments For Retirement Of Warrants PaymentsForRetirementOfWarrants	69528000	usd
CY2021	rmbs	Payments For Retirement Of Warrants PaymentsForRetirementOfWarrants	0	usd
CY2023	rmbs	Payment Of Deferred Purchase Consideration From Acquisition PaymentOfDeferredPurchaseConsiderationFromAcquisition	2450000	usd
CY2022	rmbs	Payment Of Deferred Purchase Consideration From Acquisition PaymentOfDeferredPurchaseConsiderationFromAcquisition	0	usd
CY2021	rmbs	Payment Of Deferred Purchase Consideration From Acquisition PaymentOfDeferredPurchaseConsiderationFromAcquisition	0	usd
CY2023	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	100525000	usd
CY2022	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	100421000	usd
CY2021	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	100081000	usd
CY2023	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-169623000	usd
CY2022	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-362935000	usd
CY2021	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-114209000	usd
CY2023	us-gaap	Effect Of Exchange Rate On Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	306000	usd
CY2022	us-gaap	Effect Of Exchange Rate On Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	-2007000	usd
CY2021	us-gaap	Effect Of Exchange Rate On Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	-413000	usd
CY2023	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	-30927000	usd
CY2022	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	17430000	usd
CY2021	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	-21060000	usd
CY2022Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	125694000	usd
CY2021Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	108264000	usd
CY2020Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	129324000	usd
CY2023Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	94767000	usd
CY2022Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	125694000	usd
CY2021Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	108264000	usd
CY2023	us-gaap	Interest Paid Net InterestPaidNet	73000	usd
CY2022	us-gaap	Interest Paid Net InterestPaidNet	1525000	usd
CY2021	us-gaap	Interest Paid Net InterestPaidNet	2372000	usd
CY2023	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	25932000	usd
CY2022	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	25275000	usd
CY2021	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	22839000	usd
CY2023	us-gaap	Noncash Or Part Noncash Acquisition Fixed Assets Acquired1 NoncashOrPartNoncashAcquisitionFixedAssetsAcquired1	21768000	usd
CY2022	us-gaap	Noncash Or Part Noncash Acquisition Fixed Assets Acquired1 NoncashOrPartNoncashAcquisitionFixedAssetsAcquired1	39035000	usd
CY2021	us-gaap	Noncash Or Part Noncash Acquisition Fixed Assets Acquired1 NoncashOrPartNoncashAcquisitionFixedAssetsAcquired1	12935000	usd
CY2023	us-gaap	Stock Issued1 StockIssued1	16556000	usd
CY2022	us-gaap	Stock Issued1 StockIssued1	0	usd
CY2021	us-gaap	Stock Issued1 StockIssued1	0	usd
CY2023	rmbs	Non Cash Operating Lease Right Of Use Assets Obtained In Exchange For Operating Lease Obligations NonCashOperatingLeaseRightOfUseAssetsObtainedInExchangeForOperatingLeaseObligations	1690000	usd
CY2022	rmbs	Non Cash Operating Lease Right Of Use Assets Obtained In Exchange For Operating Lease Obligations NonCashOperatingLeaseRightOfUseAssetsObtainedInExchangeForOperatingLeaseObligations	5931000	usd
CY2021	rmbs	Non Cash Operating Lease Right Of Use Assets Obtained In Exchange For Operating Lease Obligations NonCashOperatingLeaseRightOfUseAssetsObtainedInExchangeForOperatingLeaseObligations	0	usd
CY2023	us-gaap	Noncash Or Part Noncash Acquisition Noncash Financial Or Equity Instrument Consideration Shares Issued1 NoncashOrPartNoncashAcquisitionNoncashFinancialOrEquityInstrumentConsiderationSharesIssued1	0	shares
CY2022	us-gaap	Noncash Or Part Noncash Acquisition Noncash Financial Or Equity Instrument Consideration Shares Issued1 NoncashOrPartNoncashAcquisitionNoncashFinancialOrEquityInstrumentConsiderationSharesIssued1	0	shares
CY2021	us-gaap	Noncash Or Part Noncash Acquisition Noncash Financial Or Equity Instrument Consideration Shares Issued1 NoncashOrPartNoncashAcquisitionNoncashFinancialOrEquityInstrumentConsiderationSharesIssued1	6978000	shares
CY2023Q4	us-gaap	Cash And Cash Equivalents Fair Value Disclosure CashAndCashEquivalentsFairValueDisclosure	94767000	usd
CY2022Q4	us-gaap	Cash And Cash Equivalents Fair Value Disclosure CashAndCashEquivalentsFairValueDisclosure	125334000	usd
CY2021Q4	us-gaap	Cash And Cash Equivalents Fair Value Disclosure CashAndCashEquivalentsFairValueDisclosure	107891000	usd
CY2023Q4	us-gaap	Restricted Cash Current RestrictedCashCurrent	0	usd
CY2022Q4	us-gaap	Restricted Cash Current RestrictedCashCurrent	360000	usd
CY2021Q4	us-gaap	Restricted Cash Current RestrictedCashCurrent	373000	usd
CY2023Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	94767000	usd
CY2022Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	125694000	usd
CY2021Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	108264000	usd
CY2023	us-gaap	Nature Of Operations NatureOfOperations	Formation and Business of the Company<div style="margin-bottom:8pt;text-indent:13.5pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">Rambus Inc. (“Rambus” or the “Company”) was incorporated in California in March 1990 and reincorporated in Delaware in March 1997. The Company offers a balanced and diverse portfolio of products and solutions across chips, silicon intellectual products (“IP”) and patent licensing with the goal of perpetuating strong company operating performance and delivering long-term stockholder value. The Company generates revenue by selling its semiconductor chip and licensing its IP products and inventions to market-leading companies.</span></div>As an industry pioneer with over 30 years of advanced semiconductor design experience, Rambus is dedicated to addressing the challenges of accelerating and protecting data in hardware for the data center and other growing markets. With the exponential increase in the complexity, size and number of advanced workloads, like generative artificial intelligence (“AI”), the demands on computing infrastructure continue to grow. Rambus is a leader in high-performance memory subsystems, providing chips, silicon IP and innovations that maximize the performance and security in computationally-intensive systems.
CY2021	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	114865000	shares
CY2023	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	3.09
CY2022	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	-0.13
CY2023	us-gaap	Use Of Estimates UseOfEstimates	<div style="margin-bottom:8pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-style:italic;font-weight:700;line-height:120%">Use of Estimates</span></div><div style="margin-bottom:8pt;text-indent:13.5pt"><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 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 date of the financial statements and the reported amounts of revenue and expenses during the reporting period. Actual results could differ from those estimates.</span></div>
CY2023	rmbs	Debt Securities Available For Sale Securities Maximum Maturity Period DebtSecuritiesAvailableForSaleSecuritiesMaximumMaturityPeriod	P3Y
CY2023	us-gaap	Concentration Risk Credit Risk ConcentrationRiskCreditRisk	<div style="margin-bottom:8pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-style:italic;font-weight:700;line-height:120%">Credit Concentration</span></div><div style="margin-bottom:8pt;text-indent:13.5pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">As of December 31, 2023 and 2022, the Company’s cash, cash equivalents and marketable securities were invested with various financial institutions in the form of corporate bonds, commercial paper and notes, money market funds, U.S. Treasuries and U.S. Government Agencies. The Company’s exposure to market risk for changes in interest rates relates primarily to its investment portfolio. The Company places its investments with high-credit issuers and, by investment policy, attempts to limit the amount of credit exposure to any one issuer. As stated in the Company’s investment policy, it will ensure the safety and preservation of the Company’s invested funds by limiting default risk and market risk. The Company has no investments denominated in foreign country currencies and therefore is not subject to foreign exchange risk from these assets. The Company holds cash, cash equivalents and marketable securities in excess of federally insured limits.</span></div><div style="margin-bottom:8pt;text-indent:13.5pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">The Company mitigates default risk by investing in high credit quality securities and by positioning its portfolio to respond appropriately to a significant reduction in a credit rating of any investment issuer or guarantor. The portfolio includes only marketable securities with active secondary or resale markets to enable portfolio liquidity.</span></div><div style="margin-bottom:8pt;text-indent:13.5pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">The Company’s accounts receivable are derived from revenue earned from customers located in the U.S. and internationally. Refer to Note 7, “Segments and Major Customers,” for additional information. </span></div><div style="margin-bottom:8pt;text-indent:13.5pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">The Company’s unbilled receivables are collected from customers located in the U.S. and internationally. Refer to Note 4, “Revenue Recognition,” for additional information.</span></div>
CY2023	us-gaap	Debt Instrument Term DebtInstrumentTerm	P1M
CY2022	us-gaap	Weighted Average Number Diluted Shares Outstanding Adjustment WeightedAverageNumberDilutedSharesOutstandingAdjustment	0	shares
CY2021	us-gaap	Weighted Average Number Diluted Shares Outstanding Adjustment WeightedAverageNumberDilutedSharesOutstandingAdjustment	4327000	shares
CY2023	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	110889000	shares
CY2022	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	109472000	shares
CY2023Q4	us-gaap	Contract With Customer Asset Gross ContractWithCustomerAssetGross	55295000	usd
CY2022Q4	us-gaap	Contract With Customer Asset Gross ContractWithCustomerAssetGross	150920000	usd
CY2023Q4	us-gaap	Contract With Customer Liability ContractWithCustomerLiability	18085000	usd
CY2022Q4	us-gaap	Contract With Customer Liability ContractWithCustomerLiability	25421000	usd
CY2023	us-gaap	Contract With Customer Liability Revenue Recognized ContractWithCustomerLiabilityRevenueRecognized	20800000	usd
CY2022	us-gaap	Contract With Customer Liability Revenue Recognized ContractWithCustomerLiabilityRevenueRecognized	23600000	usd
CY2023Q4	us-gaap	Revenue Remaining Performance Obligation RevenueRemainingPerformanceObligation	19300000	usd
CY2023Q4	us-gaap	Revenue Remaining Performance Obligation Expected Timing Of Satisfaction Period1 RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionPeriod1	P2Y
CY2023	us-gaap	Net Income Loss NetIncomeLoss	333904000	usd
CY2022	us-gaap	Net Income Loss NetIncomeLoss	-14310000	usd
CY2021	us-gaap	Net Income Loss NetIncomeLoss	18334000	usd
CY2023	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	108183000	shares
CY2022	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	109472000	shares
CY2021	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	110538000	shares
CY2023	us-gaap	Weighted Average Number Diluted Shares Outstanding Adjustment WeightedAverageNumberDilutedSharesOutstandingAdjustment	2706000	shares
CY2021	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.17
CY2023	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	3.01
CY2022	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	-0.13
CY2021	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.16
CY2022	us-gaap	Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	2818000	shares
CY2022Q4	us-gaap	Goodwill Goodwill	292040000	usd
CY2023	us-gaap	Goodwill Written Off Related To Sale Of Business Unit GoodwillWrittenOffRelatedToSaleOfBusinessUnit	5228000	usd
CY2023Q4	us-gaap	Goodwill Goodwill	286812000	usd
CY2021Q4	us-gaap	Goodwill Goodwill	278810000	usd
CY2022	us-gaap	Goodwill Acquired During Period GoodwillAcquiredDuringPeriod	12069000	usd
CY2022	us-gaap	Goodwill Purchase Accounting Adjustments GoodwillPurchaseAccountingAdjustments	1013000	usd
CY2022	us-gaap	Goodwill Foreign Currency Translation Gain Loss GoodwillForeignCurrencyTranslationGainLoss	-148000	usd
CY2022Q4	us-gaap	Goodwill Goodwill	292040000	usd
CY2023Q4	us-gaap	Intangible Assets Gross Excluding Goodwill IntangibleAssetsGrossExcludingGoodwill	331908000	usd
CY2023Q4	us-gaap	Finite Lived Intangible Assets Accumulated Amortization FiniteLivedIntangibleAssetsAccumulatedAmortization	303139000	usd
CY2023Q4	us-gaap	Intangible Assets Net Excluding Goodwill IntangibleAssetsNetExcludingGoodwill	28769000	usd
CY2022Q4	us-gaap	Intangible Assets Gross Excluding Goodwill IntangibleAssetsGrossExcludingGoodwill	349421000	usd
CY2022Q4	us-gaap	Finite Lived Intangible Assets Accumulated Amortization FiniteLivedIntangibleAssetsAccumulatedAmortization	298541000	usd
CY2022Q4	us-gaap	Intangible Assets Net Excluding Goodwill IntangibleAssetsNetExcludingGoodwill	50880000	usd
CY2023	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	14700000	usd
CY2022	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	15600000	usd
CY2021	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	17500000	usd
CY2023Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Next Twelve Months FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths	11742000	usd
CY2023Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Two FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo	5427000	usd
CY2023Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Three FiniteLivedIntangibleAssetsAmortizationExpenseYearThree	3739000	usd
CY2023Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Four FiniteLivedIntangibleAssetsAmortizationExpenseYearFour	461000	usd
CY2023Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Five FiniteLivedIntangibleAssetsAmortizationExpenseYearFive	0	usd
CY2023Q4	rmbs	Intangible Asset Amortization Expense After Year Five IntangibleAssetAmortizationExpenseAfterYearFive	0	usd
CY2023Q4	us-gaap	Finite Lived Intangible Assets Net FiniteLivedIntangibleAssetsNet	21369000	usd
CY2023Q4	us-gaap	Indefinite Lived Intangible Assets Excluding Goodwill IndefiniteLivedIntangibleAssetsExcludingGoodwill	7400000	usd
CY2023Q4	us-gaap	Intangible Assets Net Excluding Goodwill IntangibleAssetsNetExcludingGoodwill	28769000	usd
CY2023Q4	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position Less Than12 Months DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12Months	78861000	usd
CY2022Q4	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position Less Than12 Months DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12Months	74431000	usd
CY2023Q4	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position Less Than12 Months Accumulated Loss DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12MonthsAccumulatedLoss	93000	usd
CY2022Q4	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position Less Than12 Months Accumulated Loss DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12MonthsAccumulatedLoss	58000	usd
CY2023Q4	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position12 Months Or Longer DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLonger	23460000	usd
CY2023	us-gaap	Revenue From Contract With Customer Including Assessed Tax RevenueFromContractWithCustomerIncludingAssessedTax	461117000	usd
CY2022	us-gaap	Revenue From Contract With Customer Including Assessed Tax RevenueFromContractWithCustomerIncludingAssessedTax	454793000	usd
CY2021	us-gaap	Revenue From Contract With Customer Including Assessed Tax RevenueFromContractWithCustomerIncludingAssessedTax	328304000	usd
CY2023Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	67800000	usd
CY2022Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	86300000	usd
CY2023Q4	us-gaap	Cash And Cash Equivalents Fair Value Disclosure CashAndCashEquivalentsFairValueDisclosure	94767000	usd
CY2023Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	94767000	usd
CY2023Q4	rmbs	Cash And Cash Equivalents Gross Unrealized Gains CashAndCashEquivalentsGrossUnrealizedGains	0	usd
CY2023Q4	rmbs	Cash And Cash Equivalents Gross Unrealized Losses CashAndCashEquivalentsGrossUnrealizedLosses	0	usd
CY2023Q4	us-gaap	Available For Sale Securities Debt Securities AvailableForSaleSecuritiesDebtSecurities	331077000	usd
CY2023Q4	us-gaap	Available For Sale Debt Securities Amortized Cost Basis AvailableForSaleDebtSecuritiesAmortizedCostBasis	331281000	usd
CY2023Q4	us-gaap	Available For Sale Debt Securities Accumulated Gross Unrealized Gain Before Tax AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax	413000	usd
CY2023Q4	us-gaap	Available For Sale Debt Securities Accumulated Gross Unrealized Loss Before Tax AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax	617000	usd
CY2023Q4	rmbs	Cash Cash Equivalents And Investments Fair Value Disclosure CashCashEquivalentsAndInvestmentsFairValueDisclosure	425844000	usd
CY2023Q4	rmbs	Cash Cash Equivalents And Investments Amortized Cost CashCashEquivalentsAndInvestmentsAmortizedCost	426048000	usd
CY2023Q4	rmbs	Cash Cash Equivalents And Investments Gross Unrealized Gain CashCashEquivalentsAndInvestmentsGrossUnrealizedGain	413000	usd
CY2023Q4	rmbs	Cash Cash Equivalents And Investments Gross Unrealized Loss CashCashEquivalentsAndInvestmentsGrossUnrealizedLoss	617000	usd
CY2022Q4	us-gaap	Cash And Cash Equivalents Fair Value Disclosure CashAndCashEquivalentsFairValueDisclosure	125334000	usd
CY2022Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	125338000	usd
CY2022Q4	rmbs	Cash And Cash Equivalents Gross Unrealized Gains CashAndCashEquivalentsGrossUnrealizedGains	0	usd
CY2022Q4	rmbs	Cash And Cash Equivalents Gross Unrealized Losses CashAndCashEquivalentsGrossUnrealizedLosses	4000	usd
CY2022Q4	us-gaap	Available For Sale Securities Debt Securities AvailableForSaleSecuritiesDebtSecurities	187892000	usd
CY2022Q4	us-gaap	Available For Sale Debt Securities Amortized Cost Basis AvailableForSaleDebtSecuritiesAmortizedCostBasis	191504000	usd
CY2022Q4	us-gaap	Available For Sale Debt Securities Accumulated Gross Unrealized Gain Before Tax AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax	8000	usd
CY2022Q4	us-gaap	Available For Sale Debt Securities Accumulated Gross Unrealized Loss Before Tax AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax	3620000	usd
CY2022Q4	rmbs	Cash Cash Equivalents And Investments Fair Value Disclosure CashCashEquivalentsAndInvestmentsFairValueDisclosure	313226000	usd
CY2022Q4	rmbs	Cash Cash Equivalents And Investments Amortized Cost CashCashEquivalentsAndInvestmentsAmortizedCost	316842000	usd
CY2022Q4	rmbs	Cash Cash Equivalents And Investments Gross Unrealized Gain CashCashEquivalentsAndInvestmentsGrossUnrealizedGain	8000	usd
CY2022Q4	rmbs	Cash Cash Equivalents And Investments Gross Unrealized Loss CashCashEquivalentsAndInvestmentsGrossUnrealizedLoss	3624000	usd
CY2023Q4	us-gaap	Cash And Cash Equivalents Fair Value Disclosure CashAndCashEquivalentsFairValueDisclosure	94767000	usd
CY2022Q4	us-gaap	Cash And Cash Equivalents Fair Value Disclosure CashAndCashEquivalentsFairValueDisclosure	125334000	usd
CY2023Q4	rmbs	Cash Cash Equivalents And Investments Fair Value Disclosure CashCashEquivalentsAndInvestmentsFairValueDisclosure	425844000	usd
CY2022Q4	rmbs	Cash Cash Equivalents And Investments Fair Value Disclosure CashCashEquivalentsAndInvestmentsFairValueDisclosure	313226000	usd
CY2022Q4	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position12 Months Or Longer DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLonger	112147000	usd
CY2023Q4	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position12 Months Or Longer Accumulated Loss DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLongerAccumulatedLoss	524000	usd
CY2022Q4	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position12 Months Or Longer Accumulated Loss DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLongerAccumulatedLoss	3566000	usd
CY2023Q4	us-gaap	Debt Securities Available For Sale Unrealized Loss Position DebtSecuritiesAvailableForSaleUnrealizedLossPosition	102321000	usd
CY2022Q4	us-gaap	Debt Securities Available For Sale Unrealized Loss Position DebtSecuritiesAvailableForSaleUnrealizedLossPosition	186578000	usd
CY2023Q4	us-gaap	Debt Securities Available For Sale Unrealized Loss Position Accumulated Loss DebtSecuritiesAvailableForSaleUnrealizedLossPositionAccumulatedLoss	617000	usd
CY2022Q4	us-gaap	Debt Securities Available For Sale Unrealized Loss Position Accumulated Loss DebtSecuritiesAvailableForSaleUnrealizedLossPositionAccumulatedLoss	3624000	usd
CY2023Q4	us-gaap	Available For Sale Securities Debt Maturities Next Rolling Twelve Months Fair Value AvailableForSaleSecuritiesDebtMaturitiesNextRollingTwelveMonthsFairValue	251857000	usd
CY2023Q4	us-gaap	Available For Sale Securities Debt Maturities Rolling Year Two Through Five Fair Value AvailableForSaleSecuritiesDebtMaturitiesRollingYearTwoThroughFiveFairValue	81711000	usd
CY2023Q4	us-gaap	Available For Sale Securities Debt Maturities Single Maturity Date AvailableForSaleSecuritiesDebtMaturitiesSingleMaturityDate	333568000	usd
CY2022	us-gaap	Gain Loss On Investments GainLossOnInvestments	3500000	usd
CY2023Q4	us-gaap	Lessee Operating Lease Liability Payments Due Next Twelve Months LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths	5908000	usd
CY2023Q4	us-gaap	Lessee Operating Lease Liability Payments Due Year Two LesseeOperatingLeaseLiabilityPaymentsDueYearTwo	5897000	usd
CY2023Q4	us-gaap	Lessee Operating Lease Liability Payments Due Year Three LesseeOperatingLeaseLiabilityPaymentsDueYearThree	6137000	usd
CY2023Q4	us-gaap	Lessee Operating Lease Liability Payments Due Year Four LesseeOperatingLeaseLiabilityPaymentsDueYearFour	4838000	usd
CY2023Q4	us-gaap	Lessee Operating Lease Liability Payments Due Year Five LesseeOperatingLeaseLiabilityPaymentsDueYearFive	4548000	usd
CY2023Q4	us-gaap	Lessee Operating Lease Liability Payments Due After Year Five LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive	8453000	usd
CY2023Q4	us-gaap	Lessee Operating Lease Liability Payments Due LesseeOperatingLeaseLiabilityPaymentsDue	35781000	usd
CY2023Q4	us-gaap	Lessee Operating Lease Liability Undiscounted Excess Amount LesseeOperatingLeaseLiabilityUndiscountedExcessAmount	5073000	usd
CY2023Q4	us-gaap	Operating Lease Liability OperatingLeaseLiability	30708000	usd
CY2023Q4	us-gaap	Operating Lease Liability Current OperatingLeaseLiabilityCurrent	4453000	usd
CY2023Q4	us-gaap	Operating Lease Liability Noncurrent OperatingLeaseLiabilityNoncurrent	26255000	usd
CY2023Q4	us-gaap	Operating Lease Weighted Average Remaining Lease Term1 OperatingLeaseWeightedAverageRemainingLeaseTerm1	P6Y2M12D
CY2023Q4	us-gaap	Operating Lease Weighted Average Discount Rate Percent OperatingLeaseWeightedAverageDiscountRatePercent	0.063
CY2023	us-gaap	Lease Cost LeaseCost	6000000	usd
CY2022	us-gaap	Lease Cost LeaseCost	7500000	usd
CY2021	us-gaap	Lease Cost LeaseCost	7400000	usd
CY2023	us-gaap	Operating Lease Payments OperatingLeasePayments	6700000	usd
CY2022	us-gaap	Operating Lease Payments OperatingLeasePayments	8600000	usd
CY2021	us-gaap	Operating Lease Payments OperatingLeasePayments	7800000	usd
CY2023Q4	us-gaap	Inventory Raw Materials Net Of Reserves InventoryRawMaterialsNetOfReserves	17483000	usd
CY2022Q4	us-gaap	Inventory Raw Materials Net Of Reserves InventoryRawMaterialsNetOfReserves	4683000	usd
CY2023Q4	us-gaap	Inventory Work In Process Net Of Reserves InventoryWorkInProcessNetOfReserves	5299000	usd
CY2022Q4	us-gaap	Inventory Work In Process Net Of Reserves InventoryWorkInProcessNetOfReserves	8341000	usd
CY2023Q4	us-gaap	Inventory Finished Goods Net Of Reserves InventoryFinishedGoodsNetOfReserves	13372000	usd
CY2022Q4	us-gaap	Inventory Finished Goods Net Of Reserves InventoryFinishedGoodsNetOfReserves	7876000	usd
CY2023Q4	us-gaap	Inventory Net InventoryNet	36154000	usd
CY2022Q4	us-gaap	Inventory Net InventoryNet	20900000	usd
CY2023Q4	us-gaap	Inventory Valuation Reserves InventoryValuationReserves	6000000	usd
CY2022Q4	us-gaap	Inventory Valuation Reserves InventoryValuationReserves	1300000	usd
CY2023Q4	us-gaap	Property Plant And Equipment Gross PropertyPlantAndEquipmentGross	156901000	usd
CY2022Q4	us-gaap	Property Plant And Equipment Gross PropertyPlantAndEquipmentGross	167949000	usd
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RAMBUS INC Stock $rmbs

2024 Q1 Form 10-K Financial Statement

#000091727324000028 Filed on February 23, 2024

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Balance Sheet

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$RMBS RAMBUS INC Stock $rmbs

2024 Q1 Form 10-K Financial Statement

#000091727324000028 Filed on February 23, 2024

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$RMBS
RAMBUS INC Stock $rmbs