$MPWR
Monolithic Power Systems Inc Stock $mpwr

$mpwr Overview Financials Valuation SEC Filings Company Website

2022 Q1 Form 10-Q Financial Statement

#000143774922011721 Filed on May 10, 2022

Income Statement

Concept	2022 Q1	2021 Q1
Revenue	$377.7M	$254.5M
YoY Change	48.44%	53.49%
Cost Of Revenue	$158.8M	$113.4M
YoY Change	40.07%	52.56%
Gross Profit	$218.9M	$141.1M
YoY Change	55.17%	54.25%
Gross Profit Margin	57.95%	55.44%
Selling, General & Admin	$67.15M	$51.45M
YoY Change	30.51%	59.97%
% of Gross Profit	30.68%	36.48%
Research & Development	$54.10M	$41.89M
YoY Change	29.15%	61.4%
% of Gross Profit	24.72%	29.7%
Depreciation & Amortization	$9.115M	$5.529M
YoY Change	64.86%	27.75%
% of Gross Profit	4.16%	3.92%
Operating Expenses	$122.7M	$94.97M
YoY Change	29.24%	57.08%
Operating Profit	$96.13M	$46.09M
YoY Change	108.6%	48.73%
Interest Expense	$3.461M	$2.282M
YoY Change	51.67%	-3.88%
% of Operating Profit	3.6%	4.95%
Other Income/Expense, Net	-$634.0K	$2.587M
YoY Change	-124.51%	-250.93%
Pretax Income	$95.50M	$48.67M
YoY Change	96.21%	66.28%
Income Tax	$15.90M	$3.300M
% Of Pretax Income	16.65%	6.78%
Net Earnings	$79.57M	$45.41M
YoY Change	75.21%	27.01%
Net Earnings / Revenue	21.07%	17.85%
Basic Earnings Per Share	$1.71	$1.00
Diluted Earnings Per Share	$1.65	$0.95
COMMON SHARES
Basic Shares Outstanding	46.42M	45.50M
Diluted Shares Outstanding	48.25M	47.71M

Balance Sheet

Concept	2022 Q1	2021 Q1
SHORT-TERM ASSETS
Cash & Short-Term Investments	$773.5M	$638.8M
YoY Change	21.09%	30.55%
Cash & Equivalents	$260.6M	$218.4M
Short-Term Investments	$512.9M	$420.5M
Other Short-Term Assets	$42.27M	$24.33M
YoY Change	73.76%	-18.04%
Inventory	$311.0M	$175.2M
Prepaid Expenses	$13.45M	$7.225M
Receivables	$120.3M	$84.10M
Other Receivables	$22.23M	$13.50M
Total Short-Term Assets	$1.247B	$922.4M
YoY Change	35.2%	30.88%
LONG-TERM ASSETS
Property, Plant & Equipment	$369.4M	$297.7M
YoY Change	24.06%	25.73%
Goodwill	$6.571M	$6.571M
YoY Change	0.0%	0.0%
Intangibles
YoY Change
Long-Term Investments
YoY Change
Other Assets	$68.05M	$63.78M
YoY Change	6.69%	50.21%
Total Long-Term Assets	$466.8M	$385.8M
YoY Change	21.02%	27.43%
TOTAL ASSETS
Total Short-Term Assets	$1.247B	$922.4M
Total Long-Term Assets	$466.8M	$385.8M
Total Assets	$1.714B	$1.308B
YoY Change	31.02%	29.84%
SHORT-TERM LIABILITIES
YoY Change
Accounts Payable	$71.57M	$57.24M
YoY Change	25.05%	51.61%
Accrued Expenses	$111.1M	$74.37M
YoY Change	49.38%	32.54%
Deferred Revenue	$6.982M	$6.998M
YoY Change	-0.23%	34.04%
Short-Term Debt	$0.00	$0.00
YoY Change
Long-Term Debt Due
YoY Change
Total Short-Term Liabilities	$272.5M	$187.9M
YoY Change	45.03%	67.04%
LONG-TERM LIABILITIES
Long-Term Debt	$0.00	$0.00
YoY Change
Other Long-Term Liabilities	$65.56M	$61.64M
YoY Change	6.35%	39.39%
Total Long-Term Liabilities	$65.56M	$61.64M
YoY Change	6.35%	39.39%
TOTAL LIABILITIES
Total Short-Term Liabilities	$272.5M	$187.9M
Total Long-Term Liabilities	$65.56M	$61.64M
Total Liabilities	$387.9M	$286.6M
YoY Change	35.33%	47.5%
SHAREHOLDERS EQUITY
Retained Earnings	$467.8M	$315.2M
YoY Change	48.42%	30.54%
Common Stock
YoY Change
Preferred Stock
YoY Change
Treasury Stock (at cost)
YoY Change
Treasury Stock Shares
Shareholders Equity	$1.326B	$1.022B
YoY Change
Total Liabilities & Shareholders Equity	$1.714B	$1.308B
YoY Change	31.02%	29.84%

Cashflow Statement

Concept	2022 Q1	2021 Q1
OPERATING ACTIVITIES
Net Income	$79.57M	$45.41M
YoY Change	75.21%	27.01%
Depreciation, Depletion And Amortization	$9.115M	$5.529M
YoY Change	64.86%	27.75%
Cash From Operating Activities	$107.4M	$77.06M
YoY Change	39.4%	49.86%
INVESTING ACTIVITIES
Capital Expenditures	$26.88M	$18.97M
YoY Change	41.68%	90.63%
Acquisitions
YoY Change
Other Investing Activities	$15.26M	-$163.9M
YoY Change	-109.31%	200.73%
Cash From Investing Activities	-$11.61M	-$182.9M
YoY Change	-93.65%	183.7%
FINANCING ACTIVITIES
Cash Dividend Paid	$28.83M	$23.47M
YoY Change	22.83%	34.66%
Common Stock Issuance & Retirement, Net
YoY Change
Debt Paid & Issued, Net
YoY Change
Cash From Financing Activities	-$24.25M	-$10.99M
YoY Change	120.59%	171.03%
NET CHANGE
Cash From Operating Activities	$107.4M	$77.06M
Cash From Investing Activities	-$11.61M	-$182.9M
Cash From Financing Activities	-$24.25M	-$10.99M
Net Change In Cash	$71.34M	-$116.6M
YoY Change	-161.19%	544.82%
FREE CASH FLOW
Cash From Operating Activities	$107.4M	$77.06M
Capital Expenditures	$26.88M	$18.97M
Free Cash Flow	$80.54M	$58.09M
YoY Change	38.66%	40.08%

Facts In Submission

Frame	Concept Type	Concept / XBRL Key	Value	Unit
CY2022Q2	dei	Entity Common Stock Shares Outstanding EntityCommonStockSharesOutstanding	46643000
CY2022Q1	us-gaap	Commitments And Contingencies CommitmentsAndContingencies		USD
CY2021Q4	us-gaap	Commitments And Contingencies CommitmentsAndContingencies		USD
CY2022Q1	us-gaap	Common Stock Par Or Stated Value Per Share CommonStockParOrStatedValuePerShare	0.001
CY2021Q4	us-gaap	Common Stock Par Or Stated Value Per Share CommonStockParOrStatedValuePerShare	0.001
CY2022Q1	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	150000000
CY2021Q4	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	150000000
CY2022Q1	us-gaap	Common Stock Shares Issued CommonStockSharesIssued	46625000
CY2022Q1	us-gaap	Common Stock Shares Outstanding CommonStockSharesOutstanding	46625000
CY2021Q4	us-gaap	Common Stock Shares Issued CommonStockSharesIssued	46256000
CY2021Q4	us-gaap	Common Stock Shares Outstanding CommonStockSharesOutstanding	46256000
CY2022Q1	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesTax	565000	USD
CY2021Q1	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesTax	124000	USD
CY2022Q1	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.75
CY2021Q1	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.60
CY2022Q1	mpwr	Lessee Operating Lease Lease Not Yet Commenced Future Lease Obligations LesseeOperatingLeaseLeaseNotYetCommencedFutureLeaseObligations	0	USD
CY2022Q1	us-gaap	Other Than Temporary Impairment Loss Debt Securities Available For Sale OtherThanTemporaryImpairmentLossDebtSecuritiesAvailableForSale	0	USD
CY2021Q1	us-gaap	Payments To Acquire Short Term Investments PaymentsToAcquireShortTermInvestments	201517000	USD
CY2021	us-gaap	Other Than Temporary Impairment Loss Debt Securities Available For Sale OtherThanTemporaryImpairmentLossDebtSecuritiesAvailableForSale	0	USD
CY2022Q1	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	260604000	USD
CY2021Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	189265000	USD
CY2022Q1	us-gaap	Short Term Investments ShortTermInvestments	512908000	USD
CY2021Q4	us-gaap	Short Term Investments ShortTermInvestments	535817000	USD
CY2022Q1	us-gaap	Accounts Receivable Net Current AccountsReceivableNetCurrent	120318000	USD
CY2021Q4	us-gaap	Accounts Receivable Net Current AccountsReceivableNetCurrent	104813000	USD
CY2022Q1	us-gaap	Inventory Net InventoryNet	311040000	USD
CY2021Q4	us-gaap	Inventory Net InventoryNet	259417000	USD
CY2022Q1	us-gaap	Other Assets Current OtherAssetsCurrent	42266000	USD
CY2021Q4	us-gaap	Other Assets Current OtherAssetsCurrent	35540000	USD
CY2022Q1	us-gaap	Assets Current AssetsCurrent	1247136000	USD
CY2021Q4	us-gaap	Assets Current AssetsCurrent	1124852000	USD
CY2022Q1	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	369374000	USD
CY2021Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	362962000	USD
CY2022Q1	us-gaap	Goodwill Goodwill	6571000	USD
CY2021Q4	us-gaap	Goodwill Goodwill	6571000	USD
CY2022Q1	us-gaap	Deferred Income Tax Assets Net DeferredIncomeTaxAssetsNet	22848000	USD
CY2021Q4	us-gaap	Deferred Income Tax Assets Net DeferredIncomeTaxAssetsNet	21917000	USD
CY2022Q1	us-gaap	Other Assets Noncurrent OtherAssetsNoncurrent	68052000	USD
CY2021Q4	us-gaap	Other Assets Noncurrent OtherAssetsNoncurrent	69523000	USD
CY2022Q1	us-gaap	Assets Assets	1713981000	USD
CY2021Q4	us-gaap	Assets Assets	1585825000	USD
CY2022Q1	us-gaap	Accounts Payable Current AccountsPayableCurrent	71572000	USD
CY2021Q4	us-gaap	Accounts Payable Current AccountsPayableCurrent	83027000	USD
CY2022Q1	us-gaap	Employee Related Liabilities Current EmployeeRelatedLiabilitiesCurrent	89869000	USD
CY2021Q4	us-gaap	Employee Related Liabilities Current EmployeeRelatedLiabilitiesCurrent	62635000	USD
CY2022Q1	us-gaap	Accrued Liabilities Current AccruedLiabilitiesCurrent	111087000	USD
CY2021Q4	us-gaap	Accrued Liabilities Current AccruedLiabilitiesCurrent	81282000	USD
CY2022Q1	us-gaap	Liabilities Current LiabilitiesCurrent	272528000	USD
CY2021Q4	us-gaap	Liabilities Current LiabilitiesCurrent	226944000	USD
CY2022Q1	us-gaap	Accrued Income Taxes Noncurrent AccruedIncomeTaxesNoncurrent	49782000	USD
CY2021Q4	us-gaap	Accrued Income Taxes Noncurrent AccruedIncomeTaxesNoncurrent	47669000	USD
CY2022Q1	us-gaap	Other Liabilities Noncurrent OtherLiabilitiesNoncurrent	65559000	USD
CY2021Q4	us-gaap	Other Liabilities Noncurrent OtherLiabilitiesNoncurrent	67227000	USD
CY2022Q1	us-gaap	Liabilities Liabilities	387869000	USD
CY2021Q4	us-gaap	Liabilities Liabilities	341840000	USD
CY2022Q1	us-gaap	Common Stocks Including Additional Paid In Capital CommonStocksIncludingAdditionalPaidInCapital	847966000	USD
CY2021Q4	us-gaap	Common Stocks Including Additional Paid In Capital CommonStocksIncludingAdditionalPaidInCapital	803226000	USD
CY2022Q1	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	467844000	USD
CY2021Q4	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	424879000	USD
CY2022Q1	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	10302000	USD
CY2021Q4	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	15880000	USD
CY2022Q1	us-gaap	Stockholders Equity StockholdersEquity	1326112000	USD
CY2021Q4	us-gaap	Stockholders Equity StockholdersEquity	1243985000	USD
CY2022Q1	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	1713981000	USD
CY2021Q4	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	1585825000	USD
CY2022Q1	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	377714000	USD
CY2021Q1	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	254455000	USD
CY2022Q1	us-gaap	Cost Of Revenue CostOfRevenue	158834000	USD
CY2021Q1	us-gaap	Cost Of Revenue CostOfRevenue	113396000	USD
CY2022Q1	us-gaap	Gross Profit GrossProfit	218880000	USD
CY2021Q1	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	-3128000	USD
CY2022Q1	us-gaap	Net Income Loss NetIncomeLoss	79566000	USD
CY2021Q1	us-gaap	Net Income Loss NetIncomeLoss	45413000	USD
CY2022Q1	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	9115000	USD
CY2021Q1	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	5529000	USD
CY2022Q1	us-gaap	Accretion Amortization Of Discounts And Premiums Investments AccretionAmortizationOfDiscountsAndPremiumsInvestments	-1348000	USD
CY2021Q1	us-gaap	Accretion Amortization Of Discounts And Premiums Investments AccretionAmortizationOfDiscountsAndPremiumsInvestments	-813000	USD
CY2022Q1	mpwr	Gain Loss On Deferred Compensation Plan Investments Cash Flow GainLossOnDeferredCompensationPlanInvestmentsCashFlow	-2192000	USD
CY2021Q1	mpwr	Gain Loss On Deferred Compensation Plan Investments Cash Flow GainLossOnDeferredCompensationPlanInvestmentsCashFlow	1177000	USD
CY2021Q1	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	18970000	USD
CY2022Q1	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	26877000	USD
CY2021Q1	us-gaap	Gross Profit GrossProfit	141059000	USD
CY2022Q1	us-gaap	Research And Development Expense Excluding Acquired In Process Cost ResearchAndDevelopmentExpenseExcludingAcquiredInProcessCost	54104000	USD
CY2021Q1	us-gaap	Research And Development Expense Excluding Acquired In Process Cost ResearchAndDevelopmentExpenseExcludingAcquiredInProcessCost	41892000	USD
CY2022Q1	us-gaap	Selling General And Administrative Expense SellingGeneralAndAdministrativeExpense	67153000	USD
CY2021Q1	us-gaap	Selling General And Administrative Expense SellingGeneralAndAdministrativeExpense	51453000	USD
CY2022Q1	us-gaap	Litigation Settlement Expense LitigationSettlementExpense	1489000	USD
CY2021Q1	us-gaap	Litigation Settlement Expense LitigationSettlementExpense	1628000	USD
CY2022Q1	us-gaap	Operating Expenses OperatingExpenses	122746000	USD
CY2021Q1	us-gaap	Operating Expenses OperatingExpenses	94973000	USD
CY2022Q1	us-gaap	Operating Income Loss OperatingIncomeLoss	96134000	USD
CY2021Q1	us-gaap	Operating Income Loss OperatingIncomeLoss	46086000	USD
CY2022Q1	us-gaap	Nonoperating Income Expense NonoperatingIncomeExpense	-634000	USD
CY2021Q1	us-gaap	Nonoperating Income Expense NonoperatingIncomeExpense	2587000	USD
CY2022Q1	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	95500000	USD
CY2021Q1	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	48673000	USD
CY2022Q1	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	15934000	USD
CY2021Q1	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	3260000	USD
CY2022Q1	us-gaap	Net Income Loss NetIncomeLoss	79566000	USD
CY2021Q1	us-gaap	Net Income Loss NetIncomeLoss	45413000	USD
CY2022Q1	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	1.71
CY2021Q1	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	1.00
CY2022Q1	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	1.65
CY2021Q1	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.95
CY2022Q1	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	46424000
CY2021Q1	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	45498000
CY2022Q1	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	48250000
CY2021Q1	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	47711000
CY2022Q1	us-gaap	Net Income Loss NetIncomeLoss	79566000	USD
CY2021Q1	us-gaap	Net Income Loss NetIncomeLoss	45413000	USD
CY2022Q1	us-gaap	Other Comprehensive Income Loss Foreign Currency Transaction And Translation Adjustment Net Of Tax OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax	-178000	USD
CY2021Q1	us-gaap	Other Comprehensive Income Loss Foreign Currency Transaction And Translation Adjustment Net Of Tax OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax	-2474000	USD
CY2022Q1	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Adjustment Net Of Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax	-5400000	USD
CY2021Q1	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Adjustment Net Of Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax	-654000	USD
CY2022Q1	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	-5578000	USD
CY2021Q1	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	-3128000	USD
CY2022Q1	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	73988000	USD
CY2021Q1	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	42285000	USD
CY2021Q4	us-gaap	Stockholders Equity StockholdersEquity	1243985000	USD
CY2022Q1	us-gaap	Net Income Loss NetIncomeLoss	79566000	USD
CY2022Q1	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	-5578000	USD
CY2022Q1	us-gaap	Dividends Dividends	36601000	USD
CY2022Q1	us-gaap	Stock Issued During Period Value Restricted Stock Award Net Of Forfeitures StockIssuedDuringPeriodValueRestrictedStockAwardNetOfForfeitures	2318000	USD
CY2022Q1	us-gaap	Stock Issued During Period Value Employee Stock Purchase Plan StockIssuedDuringPeriodValueEmployeeStockPurchasePlan	2786000	USD
CY2022Q1	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	39636000	USD
CY2022Q1	us-gaap	Stockholders Equity StockholdersEquity	1326112000	USD
CY2020Q4	us-gaap	Stockholders Equity StockholdersEquity	966587000	USD
CY2021Q1	us-gaap	Net Income Loss NetIncomeLoss	45413000	USD
CY2021Q1	us-gaap	Dividends Dividends	28953000	USD
CY2021Q1	us-gaap	Stock Issued During Period Value Restricted Stock Award Net Of Forfeitures StockIssuedDuringPeriodValueRestrictedStockAwardNetOfForfeitures	10744000	USD
CY2021Q1	us-gaap	Stock Issued During Period Value Employee Stock Purchase Plan StockIssuedDuringPeriodValueEmployeeStockPurchasePlan	2293000	USD
CY2021Q1	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	28621000	USD
CY2021Q1	us-gaap	Stockholders Equity StockholdersEquity	1021577000	USD
CY2022Q1	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	-381000	USD
CY2021Q1	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	1004000	USD
CY2022Q1	us-gaap	Share Based Compensation ShareBasedCompensation	39811000	USD
CY2021Q1	us-gaap	Share Based Compensation ShareBasedCompensation	28583000	USD
CY2022Q1	us-gaap	Other Noncash Income Expense OtherNoncashIncomeExpense	-5000	USD
CY2021Q1	us-gaap	Other Noncash Income Expense OtherNoncashIncomeExpense	-5000	USD
CY2022Q1	us-gaap	Increase Decrease In Receivables IncreaseDecreaseInReceivables	15506000	USD
CY2021Q1	us-gaap	Increase Decrease In Receivables IncreaseDecreaseInReceivables	17236000	USD
CY2022Q1	us-gaap	Increase Decrease In Inventories IncreaseDecreaseInInventories	51797000	USD
CY2021Q1	us-gaap	Increase Decrease In Inventories IncreaseDecreaseInInventories	18151000	USD
CY2022Q1	us-gaap	Increase Decrease In Other Operating Assets IncreaseDecreaseInOtherOperatingAssets	5916000	USD
CY2021Q1	us-gaap	Increase Decrease In Other Operating Assets IncreaseDecreaseInOtherOperatingAssets	2215000	USD
CY2022Q1	us-gaap	Increase Decrease In Accounts Payable IncreaseDecreaseInAccountsPayable	-4177000	USD
CY2021Q1	us-gaap	Increase Decrease In Accounts Payable IncreaseDecreaseInAccountsPayable	13513000	USD
CY2020Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	335071000	USD
CY2022Q1	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	260726000	USD
CY2022Q1	us-gaap	Payments To Acquire Short Term Investments PaymentsToAcquireShortTermInvestments	16243000	USD
CY2022Q1	us-gaap	Accounts Receivable Net Current AccountsReceivableNetCurrent	120300000	USD
CY2022Q1	us-gaap	Increase Decrease In Employee Related Liabilities IncreaseDecreaseInEmployeeRelatedLiabilities	27382000	USD
CY2021Q1	us-gaap	Increase Decrease In Employee Related Liabilities IncreaseDecreaseInEmployeeRelatedLiabilities	10609000	USD
CY2022Q1	us-gaap	Increase Decrease In Accrued Income Taxes Payable IncreaseDecreaseInAccruedIncomeTaxesPayable	16017000	USD
CY2021Q1	us-gaap	Increase Decrease In Accrued Income Taxes Payable IncreaseDecreaseInAccruedIncomeTaxesPayable	1800000	USD
CY2022Q1	us-gaap	Increase Decrease In Other Accrued Liabilities IncreaseDecreaseInOtherAccruedLiabilities	9760000	USD
CY2021Q1	us-gaap	Increase Decrease In Other Accrued Liabilities IncreaseDecreaseInOtherAccruedLiabilities	8567000	USD
CY2022Q1	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	107419000	USD
CY2021Q1	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	77057000	USD
CY2022Q1	us-gaap	Proceeds From Sale Of Short Term Investments ProceedsFromSaleOfShortTermInvestments	32242000	USD
CY2021Q1	us-gaap	Proceeds From Sale Of Short Term Investments ProceedsFromSaleOfShortTermInvestments	38472000	USD
CY2022Q1	us-gaap	Proceeds From Sale Of Longterm Investments ProceedsFromSaleOfLongtermInvestments	25000	USD
CY2021Q1	us-gaap	Proceeds From Sale Of Longterm Investments ProceedsFromSaleOfLongtermInvestments	25000	USD
CY2022Q1	mpwr	Contributions Made To Deferred Compensation Plan ContributionsMadeToDeferredCompensationPlan	760000	USD
CY2021Q1	mpwr	Contributions Made To Deferred Compensation Plan ContributionsMadeToDeferredCompensationPlan	876000	USD
CY2022Q1	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-11613000	USD
CY2021Q1	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-182866000	USD
CY2022Q1	mpwr	Property And Equipment Purchased On Extended Payment Terms PropertyAndEquipmentPurchasedOnExtendedPaymentTerms	528000	USD
CY2021Q1	mpwr	Property And Equipment Purchased On Extended Payment Terms PropertyAndEquipmentPurchasedOnExtendedPaymentTerms	563000	USD
CY2022Q1	us-gaap	Proceeds From Issuance Of Shares Under Incentive And Share Based Compensation Plans ProceedsFromIssuanceOfSharesUnderIncentiveAndShareBasedCompensationPlans	2318000	USD
CY2021Q1	us-gaap	Proceeds From Issuance Of Shares Under Incentive And Share Based Compensation Plans ProceedsFromIssuanceOfSharesUnderIncentiveAndShareBasedCompensationPlans	10744000	USD
CY2022Q1	us-gaap	Proceeds From Stock Plans ProceedsFromStockPlans	2786000	USD
CY2021Q1	us-gaap	Proceeds From Stock Plans ProceedsFromStockPlans	2293000	USD
CY2022Q1	us-gaap	Payments Of Dividends PaymentsOfDividends	28825000	USD
CY2021Q1	us-gaap	Payments Of Dividends PaymentsOfDividends	23467000	USD
CY2022Q1	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-24249000	USD
CY2021Q1	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-10993000	USD
CY2022Q1	us-gaap	Effect Of Exchange Rate On Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	-220000	USD
CY2021Q1	us-gaap	Effect Of Exchange Rate On Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	218000	USD
CY2022Q1	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	71337000	USD
CY2021Q1	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	-116584000	USD
CY2021Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	189389000	USD
CY2021Q1	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	218487000	USD
CY2022Q1	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	244000	USD
CY2021Q1	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	377000	USD
CY2022Q1	us-gaap	Capital Expenditures Incurred But Not Yet Paid CapitalExpendituresIncurredButNotYetPaid	6122000	USD
CY2021Q1	us-gaap	Capital Expenditures Incurred But Not Yet Paid CapitalExpendituresIncurredButNotYetPaid	12963000	USD
CY2022Q1	mpwr	Dividends And Dividend Equivalents Accrued DividendsAndDividendEquivalentsAccrued	36611000	USD
CY2021Q1	mpwr	Dividends And Dividend Equivalents Accrued DividendsAndDividendEquivalentsAccrued	29000000	USD
CY2022Q1	mpwr	Lapse Period For Consignment LapsePeriodForConsignment	P60D
CY2021Q4	us-gaap	Accounts Receivable Net Current AccountsReceivableNetCurrent	104800000	USD
CY2022Q1	us-gaap	Contract With Customer Liability Revenue Recognized ContractWithCustomerLiabilityRevenueRecognized	3800000	USD
CY2021Q4	us-gaap	Accrued Income Taxes Current AccruedIncomeTaxesCurrent	4921000	USD
CY2022Q1	us-gaap	Other Accrued Liabilities Current OtherAccruedLiabilitiesCurrent	8892000	USD
CY2021Q4	us-gaap	Other Accrued Liabilities Current OtherAccruedLiabilitiesCurrent	12960000	USD
CY2022Q1	us-gaap	Accrued Liabilities Current AccruedLiabilitiesCurrent	111087000	USD
CY2021Q4	us-gaap	Accrued Liabilities Current AccruedLiabilitiesCurrent	81282000	USD
CY2022Q1	us-gaap	Deferred Compensation Liability Classified Noncurrent DeferredCompensationLiabilityClassifiedNoncurrent	53781000	USD
CY2021Q4	us-gaap	Deferred Compensation Liability Classified Noncurrent DeferredCompensationLiabilityClassifiedNoncurrent	55489000	USD
CY2022Q1	mpwr	Dividend Equivalents Noncurrent DividendEquivalentsNoncurrent	8536000	USD
CY2021Q4	mpwr	Dividend Equivalents Noncurrent DividendEquivalentsNoncurrent	8470000	USD
CY2022Q1	us-gaap	Other Accrued Liabilities Noncurrent OtherAccruedLiabilitiesNoncurrent	3242000	USD
CY2021Q4	us-gaap	Other Accrued Liabilities Noncurrent OtherAccruedLiabilitiesNoncurrent	3268000	USD
CY2022Q1	us-gaap	Other Liabilities Noncurrent OtherLiabilitiesNoncurrent	65559000	USD
CY2021Q4	us-gaap	Other Liabilities Noncurrent OtherLiabilitiesNoncurrent	67227000	USD
CY2022Q1	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	48250000
CY2022Q1	us-gaap	Weighted Average Number Diluted Shares Outstanding Adjustment WeightedAverageNumberDilutedSharesOutstandingAdjustment	1826000
CY2021Q1	us-gaap	Weighted Average Number Diluted Shares Outstanding Adjustment WeightedAverageNumberDilutedSharesOutstandingAdjustment	2213000
CY2021Q1	us-gaap	Lease Cost LeaseCost	620000	USD
CY2022Q1	us-gaap	Operating Lease Payments OperatingLeasePayments	932000	USD
CY2021Q1	us-gaap	Operating Lease Payments OperatingLeasePayments	312000	USD
CY2022Q1	us-gaap	Right Of Use Asset Obtained In Exchange For Operating Lease Liability RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability	1010000	USD
CY2021Q1	us-gaap	Right Of Use Asset Obtained In Exchange For Operating Lease Liability RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability	2940000	USD
CY2022Q1	us-gaap	Operating Lease Weighted Average Remaining Lease Term1 OperatingLeaseWeightedAverageRemainingLeaseTerm1	P2Y7M6D
CY2022Q1	us-gaap	Operating Lease Cost OperatingLeaseCost	729000	USD
CY2021Q1	us-gaap	Operating Lease Cost OperatingLeaseCost	499000	USD
CY2022Q1	us-gaap	Short Term Lease Cost ShortTermLeaseCost	367000	USD
CY2021Q1	us-gaap	Short Term Lease Cost ShortTermLeaseCost	121000	USD
CY2022Q1	us-gaap	Lease Cost LeaseCost	1096000	USD
CY2021Q4	us-gaap	Operating Lease Weighted Average Remaining Lease Term1 OperatingLeaseWeightedAverageRemainingLeaseTerm1	P2Y9M18D
CY2022Q1	us-gaap	Operating Lease Weighted Average Discount Rate Percent OperatingLeaseWeightedAverageDiscountRatePercent	0.020	pure
CY2021Q4	us-gaap	Operating Lease Weighted Average Discount Rate Percent OperatingLeaseWeightedAverageDiscountRatePercent	0.020	pure
CY2022Q1	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	39811000	USD
CY2021Q1	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	28583000	USD
CY2022Q1	us-gaap	Employee Service Share Based Compensation Tax Benefit From Compensation Expense EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense	573000	USD
CY2021Q1	us-gaap	Employee Service Share Based Compensation Tax Benefit From Compensation Expense EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense	430000	USD
CY2021Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Nonvested Number ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber	2509000
CY2021Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Nonvested Weighted Average Grant Date Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue	136.87
CY2022Q1	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Grants In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod	589000
CY2022Q1	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Grants In Period Weighted Average Grant Date Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue	351.82
CY2022Q1	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Vested In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriod	362000
CY2022Q1	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Vested In Period Weighted Average Grant Date Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodWeightedAverageGrantDateFairValue	121.58
CY2022Q1	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Forfeited In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeitedInPeriod	4000
CY2022Q1	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Forfeitures Weighted Average Grant Date Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeituresWeightedAverageGrantDateFairValue	212.17
CY2022Q1	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Nonvested Number ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber	2732000
CY2022Q1	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Nonvested Weighted Average Grant Date Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue	185.11
CY2022Q1	us-gaap	Share Price SharePrice	485.68
CY2022Q1	us-gaap	Share Price SharePrice	393.16
CY2022Q1	us-gaap	Inventory Raw Materials Net Of Reserves InventoryRawMaterialsNetOfReserves	36552000	USD
CY2021Q4	us-gaap	Inventory Raw Materials Net Of Reserves InventoryRawMaterialsNetOfReserves	29478000	USD
CY2022Q1	us-gaap	Inventory Work In Process Net Of Reserves InventoryWorkInProcessNetOfReserves	142143000	USD
CY2021Q4	us-gaap	Inventory Work In Process Net Of Reserves InventoryWorkInProcessNetOfReserves	130029000	USD
CY2022Q1	us-gaap	Inventory Finished Goods Net Of Reserves InventoryFinishedGoodsNetOfReserves	132345000	USD
CY2022Q1	mpwr	Dividends And Dividend Equivalents DividendsAndDividendEquivalents	40072000	USD
CY2021Q4	us-gaap	Inventory Finished Goods Net Of Reserves InventoryFinishedGoodsNetOfReserves	99910000	USD
CY2022Q1	us-gaap	Inventory Net InventoryNet	311040000	USD
CY2021Q4	us-gaap	Inventory Net InventoryNet	259417000	USD
CY2022Q1	mpwr	Tax Withholding Share Based Payment Arrangement Proceeds Receivable TaxWithholdingShareBasedPaymentArrangementProceedsReceivable	15595000	USD
CY2021Q4	mpwr	Tax Withholding Share Based Payment Arrangement Proceeds Receivable TaxWithholdingShareBasedPaymentArrangementProceedsReceivable	16224000	USD
CY2022Q1	us-gaap	Prepaid Expense Current PrepaidExpenseCurrent	13447000	USD
CY2021Q4	us-gaap	Prepaid Expense Current PrepaidExpenseCurrent	9526000	USD
CY2022Q1	mpwr	Product Return Assets Current ProductReturnAssetsCurrent	3247000	USD
CY2021Q4	mpwr	Product Return Assets Current ProductReturnAssetsCurrent	1596000	USD
CY2022Q1	us-gaap	Interest Receivable Current InterestReceivableCurrent	6633000	USD
CY2021Q4	us-gaap	Interest Receivable Current InterestReceivableCurrent	5440000	USD
CY2022Q1	us-gaap	Other Assets Miscellaneous Current OtherAssetsMiscellaneousCurrent	3344000	USD
CY2021Q4	us-gaap	Other Assets Miscellaneous Current OtherAssetsMiscellaneousCurrent	2754000	USD
CY2022Q1	us-gaap	Other Assets Current OtherAssetsCurrent	42266000	USD
CY2021Q4	us-gaap	Other Assets Current OtherAssetsCurrent	35540000	USD
CY2022Q1	us-gaap	Deferred Compensation Plan Assets DeferredCompensationPlanAssets	51759000	USD
CY2021Q4	us-gaap	Deferred Compensation Plan Assets DeferredCompensationPlanAssets	53172000	USD
CY2022Q1	us-gaap	Prepaid Expense Other Noncurrent PrepaidExpenseOtherNoncurrent	2261000	USD
CY2021Q4	us-gaap	Prepaid Expense Other Noncurrent PrepaidExpenseOtherNoncurrent	2311000	USD
CY2022Q1	us-gaap	Other Assets Miscellaneous Noncurrent OtherAssetsMiscellaneousNoncurrent	14032000	USD
CY2021Q4	us-gaap	Other Assets Miscellaneous Noncurrent OtherAssetsMiscellaneousNoncurrent	14040000	USD
CY2022Q1	us-gaap	Other Assets Noncurrent OtherAssetsNoncurrent	68052000	USD
CY2021Q4	us-gaap	Other Assets Noncurrent OtherAssetsNoncurrent	69523000	USD
CY2021Q4	mpwr	Dividends And Dividend Equivalents DividendsAndDividendEquivalents	32364000	USD
CY2022Q1	us-gaap	Product Warranty Accrual Classified Current ProductWarrantyAccrualClassifiedCurrent	23833000	USD
CY2021Q4	us-gaap	Product Warranty Accrual Classified Current ProductWarrantyAccrualClassifiedCurrent	20989000	USD
CY2022Q1	mpwr	Stock Rotation Reserve And Accrued Sales Returns StockRotationReserveAndAccruedSalesReturns	12492000	USD
CY2021Q4	mpwr	Stock Rotation Reserve And Accrued Sales Returns StockRotationReserveAndAccruedSalesReturns	5748000	USD
CY2022Q1	us-gaap	Contract With Customer Liability Current ContractWithCustomerLiabilityCurrent	6982000	USD
CY2021Q4	us-gaap	Contract With Customer Liability Current ContractWithCustomerLiabilityCurrent	4300000	USD
CY2022Q1	us-gaap	Accrued Income Taxes Current AccruedIncomeTaxesCurrent	18816000	USD
CY2022Q1	us-gaap	Lessee Operating Lease Liability Payments Remainder Of Fiscal Year LesseeOperatingLeaseLiabilityPaymentsRemainderOfFiscalYear	1980000	USD
CY2022Q1	us-gaap	Lessee Operating Lease Liability Payments Due Next Twelve Months LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths	2191000	USD
CY2022Q1	us-gaap	Lessee Operating Lease Liability Payments Due Year Two LesseeOperatingLeaseLiabilityPaymentsDueYearTwo	1087000	USD
CY2022Q1	us-gaap	Lessee Operating Lease Liability Payments Due Year Three LesseeOperatingLeaseLiabilityPaymentsDueYearThree	655000	USD
CY2022Q1	us-gaap	Lessee Operating Lease Liability Payments Due Year Four LesseeOperatingLeaseLiabilityPaymentsDueYearFour	8000	USD
CY2022Q1	us-gaap	Lessee Operating Lease Liability Payments Due LesseeOperatingLeaseLiabilityPaymentsDue	5921000	USD
CY2022Q1	us-gaap	Lessee Operating Lease Liability Undiscounted Excess Amount LesseeOperatingLeaseLiabilityUndiscountedExcessAmount	149000	USD
CY2022Q1	us-gaap	Operating Lease Lease Income Lease Payments OperatingLeaseLeaseIncomeLeasePayments	600000	USD
CY2021Q1	us-gaap	Operating Lease Lease Income Lease Payments OperatingLeaseLeaseIncomeLeasePayments	300000	USD
CY2022Q1	us-gaap	Lessor Operating Lease Payments To Be Received Remainder Of Fiscal Year LessorOperatingLeasePaymentsToBeReceivedRemainderOfFiscalYear	1668000	USD
CY2022Q1	us-gaap	Lessor Operating Lease Payments To Be Received Next Twelve Months LessorOperatingLeasePaymentsToBeReceivedNextTwelveMonths	1582000	USD
CY2022Q1	us-gaap	Lessor Operating Lease Payments To Be Received Two Years LessorOperatingLeasePaymentsToBeReceivedTwoYears	616000	USD
CY2022Q1	us-gaap	Lessor Operating Lease Payments To Be Received Three Years LessorOperatingLeasePaymentsToBeReceivedThreeYears	108000	USD
CY2022Q1	us-gaap	Net Income Loss NetIncomeLoss	79566000	USD
CY2022Q1	us-gaap	Lessor Operating Lease Payments To Be Received Four Years LessorOperatingLeasePaymentsToBeReceivedFourYears	20000	USD
CY2022Q1	us-gaap	Lessor Operating Lease Payments To Be Received LessorOperatingLeasePaymentsToBeReceived	3994000	USD
CY2021Q1	us-gaap	Net Income Loss NetIncomeLoss	45413000	USD
CY2022Q1	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	46424000
CY2021Q1	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	45498000
CY2021Q1	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	47711000
CY2022Q1	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	1.71
CY2021Q1	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	1.00
CY2022Q1	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	1.65
CY2021Q1	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.95
CY2022Q1	us-gaap	Number Of Reportable Segments NumberOfReportableSegments	1	pure
CY2022Q1	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	377714000	USD
CY2021Q1	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	254455000	USD
CY2022Q1	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	377714000	USD
CY2021Q1	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	254455000	USD
CY2022Q1	us-gaap	Noncurrent Assets NoncurrentAssets	369374000	USD
CY2021Q4	us-gaap	Noncurrent Assets NoncurrentAssets	362962000	USD
CY2021Q4	us-gaap	Standard Product Warranty Accrual StandardProductWarrantyAccrual	20989000	USD
CY2020Q4	us-gaap	Standard Product Warranty Accrual StandardProductWarrantyAccrual	6895000	USD
CY2022Q1	us-gaap	Standard Product Warranty Accrual Warranties Issued StandardProductWarrantyAccrualWarrantiesIssued	4740000	USD
CY2021Q1	us-gaap	Standard Product Warranty Accrual Warranties Issued StandardProductWarrantyAccrualWarrantiesIssued	3609000	USD
CY2022Q1	us-gaap	Product Warranty Accrual Payments ProductWarrantyAccrualPayments	1380000	USD
CY2021Q1	us-gaap	Product Warranty Accrual Payments ProductWarrantyAccrualPayments	313000	USD
CY2022Q1	us-gaap	Product Warranty Accrual Preexisting Increase Decrease ProductWarrantyAccrualPreexistingIncreaseDecrease	516000	USD
CY2021Q1	us-gaap	Product Warranty Accrual Preexisting Increase Decrease ProductWarrantyAccrualPreexistingIncreaseDecrease	250000	USD
CY2022Q1	us-gaap	Deferred Compensation Plan Assets DeferredCompensationPlanAssets	51759000	USD
CY2022Q1	us-gaap	Standard Product Warranty Accrual StandardProductWarrantyAccrual	23833000	USD
CY2021Q1	us-gaap	Standard Product Warranty Accrual StandardProductWarrantyAccrual	9941000	USD
CY2022Q1	us-gaap	Standard Product Warranty Accrual Preexisting Increase Decrease StandardProductWarrantyAccrualPreexistingIncreaseDecrease	4200000	USD
CY2022Q1	us-gaap	Purchase Obligation PurchaseObligation	204100000	USD
CY2022Q1	us-gaap	Cash Cash	228236000	USD
CY2021Q4	us-gaap	Cash Cash	174937000	USD
CY2022Q1	us-gaap	Money Market Funds At Carrying Value MoneyMarketFundsAtCarryingValue	32368000	USD
CY2021Q4	us-gaap	Money Market Funds At Carrying Value MoneyMarketFundsAtCarryingValue	14328000	USD
CY2022Q1	us-gaap	Certificates Of Deposit At Carrying Value CertificatesOfDepositAtCarryingValue	141887000	USD
CY2021Q4	us-gaap	Certificates Of Deposit At Carrying Value CertificatesOfDepositAtCarryingValue	141478000	USD
CY2022Q1	us-gaap	Us Government Securities At Carrying Value USGovernmentSecuritiesAtCarryingValue	7327000	USD
CY2021Q4	us-gaap	Us Government Securities At Carrying Value USGovernmentSecuritiesAtCarryingValue	7456000	USD
CY2022Q1	mpwr	Cash Cash Equivalents And Investments CashCashEquivalentsAndInvestments	775888000	USD
CY2021Q4	mpwr	Cash Cash Equivalents And Investments CashCashEquivalentsAndInvestments	727483000	USD
CY2022Q1	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	260604000	USD
CY2021Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	189265000	USD
CY2022Q1	us-gaap	Short Term Investments ShortTermInvestments	512908000	USD
CY2021Q4	us-gaap	Short Term Investments ShortTermInvestments	535817000	USD
CY2022Q1	us-gaap	Long Term Investments LongTermInvestments	2376000	USD
CY2021Q4	us-gaap	Long Term Investments LongTermInvestments	2401000	USD
CY2022Q1	mpwr	Cash Cash Equivalents And Investments CashCashEquivalentsAndInvestments	775888000	USD
CY2021Q4	mpwr	Cash Cash Equivalents And Investments CashCashEquivalentsAndInvestments	727483000	USD
CY2022Q1	us-gaap	Available For Sale Securities Debt Maturities Within One Year Amortized Cost AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearAmortizedCost	250562000	USD
CY2022Q1	us-gaap	Available For Sale Securities Debt Maturities Within One Year Fair Value AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearFairValue	249994000	USD
CY2022Q1	us-gaap	Available For Sale Securities Debt Maturities After One Through Five Years Amortized Cost AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughFiveYearsAmortizedCost	269548000	USD
CY2022Q1	us-gaap	Available For Sale Securities Debt Maturities After One Through Five Years Fair Value AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughFiveYearsFairValue	262914000	USD
CY2022Q1	us-gaap	Available For Sale Securities Debt Maturities After Five Through Ten Years Amortized Cost AvailableForSaleSecuritiesDebtMaturitiesAfterFiveThroughTenYearsAmortizedCost	2495000	USD
CY2022Q1	us-gaap	Available For Sale Securities Debt Maturities After Five Through Ten Years Fair Value AvailableForSaleSecuritiesDebtMaturitiesAfterFiveThroughTenYearsFairValue	2376000	USD
CY2022Q1	us-gaap	Available For Sale Securities Debt Maturities Single Maturity Date Amortized Cost Basis AvailableForSaleSecuritiesDebtMaturitiesSingleMaturityDateAmortizedCostBasis	522605000	USD
CY2022Q1	us-gaap	Available For Sale Securities Debt Maturities Single Maturity Date AvailableForSaleSecuritiesDebtMaturitiesSingleMaturityDate	515284000	USD
CY2022Q1	us-gaap	Available For Sale Debt Securities Amortized Cost Basis AvailableForSaleDebtSecuritiesAmortizedCostBasis	554973000	USD
CY2022Q1	us-gaap	Available For Sale Debt Securities Accumulated Gross Unrealized Gain Before Tax AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax	97000	USD
CY2022Q1	us-gaap	Available For Sale Debt Securities Accumulated Gross Unrealized Loss Before Tax AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax	7418000	USD
CY2022Q1	us-gaap	Available For Sale Securities Debt Securities AvailableForSaleSecuritiesDebtSecurities	547652000	USD
CY2021Q4	us-gaap	Available For Sale Debt Securities Amortized Cost Basis AvailableForSaleDebtSecuritiesAmortizedCostBasis	553902000	USD
CY2021Q4	us-gaap	Available For Sale Debt Securities Accumulated Gross Unrealized Gain Before Tax AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax	570000	USD
CY2021Q4	us-gaap	Available For Sale Debt Securities Accumulated Gross Unrealized Loss Before Tax AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax	1926000	USD
CY2021Q4	us-gaap	Available For Sale Securities Debt Securities AvailableForSaleSecuritiesDebtSecurities	552546000	USD
CY2022Q1	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position Less Than12 Months DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12Months	322693000	USD
CY2022Q1	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position Less Than12 Months Accumulated Loss DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12MonthsAccumulatedLoss	7213000	USD
CY2022Q1	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position12 Months Or Longer DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLonger	15326000	USD
CY2022Q1	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position12 Months Or Longer Accumulated Loss DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLongerAccumulatedLoss	205000	USD
CY2022Q1	us-gaap	Debt Securities Available For Sale Unrealized Loss Position DebtSecuritiesAvailableForSaleUnrealizedLossPosition	338019000	USD
CY2022Q1	us-gaap	Debt Securities Available For Sale Unrealized Loss Position Accumulated Loss DebtSecuritiesAvailableForSaleUnrealizedLossPositionAccumulatedLoss	7418000	USD
CY2021Q4	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position Less Than12 Months DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12Months	293410000	USD
CY2021Q4	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position Less Than12 Months Accumulated Loss DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12MonthsAccumulatedLoss	1804000	USD
CY2021Q4	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position12 Months Or Longer DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLonger	7161000	USD
CY2021Q4	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position12 Months Or Longer Accumulated Loss DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLongerAccumulatedLoss	122000	USD
CY2021Q4	us-gaap	Debt Securities Available For Sale Unrealized Loss Position DebtSecuritiesAvailableForSaleUnrealizedLossPosition	300571000	USD
CY2021Q4	us-gaap	Debt Securities Available For Sale Unrealized Loss Position Accumulated Loss DebtSecuritiesAvailableForSaleUnrealizedLossPositionAccumulatedLoss	1926000	USD
CY2022Q1	mpwr	Redemption Auction Rate Securities To Date RedemptionAuctionRateSecuritiesToDate	40800000	USD
CY2022Q1	mpwr	Percentage Of Auction Rate Securities Redeemedat Par Value PercentageOfAuctionRateSecuritiesRedeemedatParValue	0.94	pure
CY2022Q1	us-gaap	Equity Securities Without Readily Determinable Fair Value Amount EquitySecuritiesWithoutReadilyDeterminableFairValueAmount	3300000	USD
CY2022Q1	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	260604000	USD
CY2021Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	189265000	USD
CY2022Q1	us-gaap	Restricted Cash And Cash Equivalents RestrictedCashAndCashEquivalents	122000	USD
CY2021Q4	us-gaap	Restricted Cash And Cash Equivalents RestrictedCashAndCashEquivalents	124000	USD
CY2022Q1	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	260726000	USD
CY2021Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	189389000	USD
CY2022Q1	us-gaap	Assets Fair Value Disclosure AssetsFairValueDisclosure	578662000	USD
CY2021Q4	us-gaap	Assets Fair Value Disclosure AssetsFairValueDisclosure	584332000	USD
CY2021Q4	us-gaap	Deferred Compensation Plan Assets DeferredCompensationPlanAssets	53172000	USD
CY2022Q1	us-gaap	Deferred Compensation Liability Current And Noncurrent DeferredCompensationLiabilityCurrentAndNoncurrent	53899000	USD
CY2021Q4	us-gaap	Deferred Compensation Liability Current And Noncurrent DeferredCompensationLiabilityCurrentAndNoncurrent	55771000	USD
CY2022Q1	us-gaap	Interest Income Expense Nonoperating Net InterestIncomeExpenseNonoperatingNet	3461000	USD
CY2021Q1	us-gaap	Interest Income Expense Nonoperating Net InterestIncomeExpenseNonoperatingNet	2282000	USD
CY2022Q1	us-gaap	Accretion Amortization Of Discounts And Premiums Investments AccretionAmortizationOfDiscountsAndPremiumsInvestments	-1348000	USD
CY2021Q1	us-gaap	Accretion Amortization Of Discounts And Premiums Investments AccretionAmortizationOfDiscountsAndPremiumsInvestments	-813000	USD
CY2022Q1	mpwr	Gain Loss On Deferred Compensation Plan Investments GainLossOnDeferredCompensationPlanInvestments	-2192000	USD
CY2021Q1	mpwr	Gain Loss On Deferred Compensation Plan Investments GainLossOnDeferredCompensationPlanInvestments	1177000	USD
CY2022Q1	us-gaap	Foreign Currency Transaction Gain Loss Before Tax ForeignCurrencyTransactionGainLossBeforeTax	-50000	USD
CY2021Q1	us-gaap	Foreign Currency Transaction Gain Loss Before Tax ForeignCurrencyTransactionGainLossBeforeTax	15000	USD
CY2022Q1	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	-505000	USD
CY2021Q1	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	-74000	USD
CY2022Q1	us-gaap	Nonoperating Income Expense NonoperatingIncomeExpense	-634000	USD
CY2021Q1	us-gaap	Nonoperating Income Expense NonoperatingIncomeExpense	2587000	USD
CY2022Q1	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	15900000	USD
CY2022Q1	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.167	pure
CY2021Q1	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	3300000	USD
CY2021Q1	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.067	pure
CY2022Q1	us-gaap	Dividends Common Stock DividendsCommonStock	34908000	USD
CY2021Q1	us-gaap	Dividends Common Stock DividendsCommonStock	27393000	USD
CY2022Q1	us-gaap	Dividends Payable Current DividendsPayableCurrent	34900000	USD
CY2021Q4	us-gaap	Dividends Payable Current DividendsPayableCurrent	27700000	USD
CY2022Q1	mpwr	Accrued Dividend Equivalents AccruedDividendEquivalents	13700000	USD
CY2021Q4	mpwr	Accrued Dividend Equivalents AccruedDividendEquivalents	13100000	USD
CY2022Q1	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.75
CY2021Q1	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.60

Files In Submission

Name	View Source	Status
0001437749-22-011721-index-headers.html	Edgar Link	pending
0001437749-22-011721-index.html	Edgar Link	pending
0001437749-22-011721.txt	Edgar Link	pending
0001437749-22-011721-xbrl.zip	Edgar Link	pending
ex_366688.htm	Edgar Link	pending
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ex_366690.htm	Edgar Link	pending
FilingSummary.xml	Edgar Link	unprocessable
Financial_Report.xlsx	Edgar Link	pending
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mpwr-20220331.xsd	Edgar Link	pending
mpwr-20220331_cal.xml	Edgar Link	unprocessable
mpwr-20220331_def.xml	Edgar Link	unprocessable
mpwr-20220331_lab.xml	Edgar Link	unprocessable
mpwr-20220331_pre.xml	Edgar Link	unprocessable
mpwr20220331_10q.htm	Edgar Link	pending
mpwr20220331_10q_htm.xml	Edgar Link	completed
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report.css	Edgar Link	pending
Show.js	Edgar Link	pending

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$MPWR
Monolithic Power Systems Inc Stock $mpwr

2022 Q1 Form 10-Q Financial Statement

#000143774922011721 Filed on May 10, 2022

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$MPWR Monolithic Power Systems Inc Stock $mpwr

2022 Q1 Form 10-Q Financial Statement

#000143774922011721 Filed on May 10, 2022

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$MPWR
Monolithic Power Systems Inc Stock $mpwr