$DXCM
DEXCOM INC Stock $dxcm

$dxcm Overview Financials Valuation SEC Filings Company Website

2023 Q1 Form 10-K Financial Statement

#000109355723000024 Filed on February 09, 2023

Income Statement

Concept	2023 Q1	2022 Q4	2022
Revenue	$741.5M	$815.2M	$2.910B
YoY Change	17.92%	16.76%	18.84%
Cost Of Revenue	$278.9M	$260.0M	$1.027B
YoY Change	20.89%	31.65%	33.68%
Gross Profit	$462.6M	$555.2M	$1.883B
YoY Change	16.2%	10.88%	12.06%
Gross Profit Margin	62.39%	68.11%	64.72%
Selling, General & Admin	$294.6M	$297.8M	$1.000B
YoY Change	33.36%	26.67%	23.41%
% of Gross Profit	63.68%	53.64%	53.11%
Research & Development	$119.0M	$116.3M	$484.2M
YoY Change	-12.44%	-50.91%	-6.36%
% of Gross Profit	25.72%	20.95%	25.71%
Depreciation & Amortization	$41.60M	$36.30M	$155.9M
YoY Change	13.04%	13.08%	52.84%
% of Gross Profit	8.99%	6.54%	8.28%
Operating Expenses	$415.4M	$415.9M	$1.492B
YoY Change	16.42%	-11.89%	5.46%
Operating Profit	$47.20M	$139.3M	$391.2M
YoY Change	14.29%	385.37%	47.18%
Interest Expense	$4.600M	$7.800M	$18.60M
YoY Change	0.0%	-153.42%	-81.46%
% of Operating Profit	9.75%	5.6%	4.75%
Other Income/Expense, Net	$21.90M		$18.00M
YoY Change	-2837.5%		-1158.82%
Pretax Income	$64.50M	$133.2M	$390.8M
YoY Change	78.67%	-1006.12%	124.73%
Income Tax	$15.90M	$41.40M	$49.60M
% Of Pretax Income	24.65%	31.08%	12.69%
Net Earnings	$48.60M	$91.80M	$341.2M
YoY Change	-50.05%	-573.2%	120.56%
Net Earnings / Revenue	6.55%	11.26%	11.73%
Basic Earnings Per Share	$0.13		$0.88
Diluted Earnings Per Share	$0.12	$0.22	$0.82
COMMON SHARES
Basic Shares Outstanding	386.4M shares	386.3M shares	389.4M shares
Diluted Shares Outstanding	418.5M shares		427.5M shares

Balance Sheet

Concept	2023 Q1	2022 Q4	2022
SHORT-TERM ASSETS
Cash & Short-Term Investments	$2.563B	$2.452B	$2.456B
YoY Change	-1.0%	1.73%	-10.07%
Cash & Equivalents	$623.2M	$642.3M	$642.3M
Short-Term Investments	$1.940B	$1.810B	$1.814B
Other Short-Term Assets	$43.20M	$37.00M	$192.6M
YoY Change	-74.84%	35.04%	136.03%
Inventory	$366.0M	$306.7M	$306.7M
Prepaid Expenses	$57.40M	$48.90M
Receivables	$636.8M	$713.3M	$713.3M
Other Receivables	$15.70M	$0.00	$0.00
Total Short-Term Assets	$3.767B	$3.669B	$3.669B
YoY Change	0.56%	-0.42%	-0.42%
LONG-TERM ASSETS
Property, Plant & Equipment	$1.076B	$1.136B	$1.136B
YoY Change	25.57%	41.63%	27.61%
Goodwill	$25.70M	$25.70M
YoY Change	-3.38%	-3.02%
Intangibles	$163.6M	$173.3M
YoY Change	421.02%	450.16%
Long-Term Investments
YoY Change
Other Assets	$56.60M	$47.10M	$388.3M
YoY Change	148.25%	348.57%	29.0%
Total Long-Term Assets	$1.749B	$1.723B	$1.723B
YoY Change	33.43%	37.95%	37.95%
TOTAL ASSETS
Total Short-Term Assets	$3.767B	$3.669B	$3.669B
Total Long-Term Assets	$1.749B	$1.723B	$1.723B
Total Assets	$5.516B	$5.392B	$5.392B
YoY Change	9.07%	9.29%	9.29%
SHORT-TERM LIABILITIES
YoY Change
Accounts Payable	$266.2M	$237.9M	$237.9M
YoY Change	77.35%	25.61%	25.61%
Accrued Expenses	$816.0M	$818.7M	$814.5M
YoY Change	46.08%	59.19%	58.37%
Deferred Revenue	$9.600M	$10.10M
YoY Change	255.56%	380.95%
Short-Term Debt	$0.00	$0.00	$0.00
YoY Change
Long-Term Debt Due	$773.2M	$772.6M	$776.8M
YoY Change
Total Short-Term Liabilities	$1.865B	$1.839B	$1.839B
YoY Change	162.16%	155.17%	155.17%
LONG-TERM LIABILITIES
Long-Term Debt	$1.258B	$1.257B	$1.257B
YoY Change	-37.97%	-38.33%	-38.33%
Other Long-Term Liabilities	$129.7M	$128.3M	$158.4M
YoY Change	33.57%	42.56%	26.01%
Total Long-Term Liabilities	$129.7M	$128.3M	$1.416B
YoY Change	33.57%	42.56%	-34.59%
TOTAL LIABILITIES
Total Short-Term Liabilities	$1.865B	$1.839B	$1.839B
Total Long-Term Liabilities	$129.7M	$128.3M	$1.416B
Total Liabilities	$3.283B	$3.260B	$3.260B
YoY Change	14.48%	12.75%	12.75%
SHAREHOLDERS EQUITY
Retained Earnings	$528.5M	$479.9M
YoY Change	123.94%	246.0%
Common Stock	$2.306B	$2.258B
YoY Change	15.48%	7.08%
Preferred Stock
YoY Change
Treasury Stock (at cost)
YoY Change
Treasury Stock Shares
Shareholders Equity	$2.233B	$2.132B	$2.132B
YoY Change
Total Liabilities & Shareholders Equity	$5.516B	$5.392B	$5.392B
YoY Change	9.07%	9.29%	9.29%

Cashflow Statement

Concept	2023 Q1	2022 Q4	2022
OPERATING ACTIVITIES
Net Income	$48.60M	$91.80M	$341.2M
YoY Change	-50.05%	-573.2%	120.56%
Depreciation, Depletion And Amortization	$41.60M	$36.30M	$155.9M
YoY Change	13.04%	13.08%	52.84%
Cash From Operating Activities	$155.4M	$132.5M	$669.5M
YoY Change	118.87%	25.24%	51.3%
INVESTING ACTIVITIES
Capital Expenditures	$74.70M	$63.50M	$364.8M
YoY Change	-26.48%	-179.18%	-6.27%
Acquisitions	$0.00		$3.900M
YoY Change	-100.0%		-87.09%
Other Investing Activities	$0.00	-$130.6M	$14.30M
YoY Change	-100.0%	-68.6%	-241.58%
Cash From Investing Activities	-$186.7M	-$194.1M	-$521.5M
YoY Change	-54.66%	-60.87%	141.32%
FINANCING ACTIVITIES
Cash Dividend Paid
YoY Change
Common Stock Issuance & Retirement, Net			$535.2M
YoY Change			2536.45%
Debt Paid & Issued, Net
YoY Change
Cash From Financing Activities	$11.20M	-1.000M	-$552.5M
YoY Change	111.32%	25.0%	-5412.5%
NET CHANGE
Cash From Operating Activities	$155.4M	132.5M	$669.5M
Cash From Investing Activities	-$186.7M	-194.1M	-$521.5M
Cash From Financing Activities	$11.20M	-1.000M	-$552.5M
Net Change In Cash	-$19.00M	-62.60M	-$410.3M
YoY Change	-94.35%	-83.99%	-274.3%
FREE CASH FLOW
Cash From Operating Activities	$155.4M	$132.5M	$669.5M
Capital Expenditures	$74.70M	$63.50M	$364.8M
Free Cash Flow	$80.70M	$69.00M	$304.7M
YoY Change	-363.73%	-62.9%	471.67%

Facts In Submission

Frame	Concept Type	Concept / XBRL Key	Value	Unit
CY2022	dei	Amendment Flag AmendmentFlag	false
CY2022	dei	Document Fiscal Year Focus DocumentFiscalYearFocus	2022
CY2022	dei	Document Fiscal Period Focus DocumentFiscalPeriodFocus	FY
CY2022	dei	Entity Central Index Key EntityCentralIndexKey	0001093557
CY2021Q4	us-gaap	Finance Lease Liability Current Statement Of Financial Position Extensible List FinanceLeaseLiabilityCurrentStatementOfFinancialPositionExtensibleList	http://fasb.org/us-gaap/2022#AccountsPayableAndOtherAccruedLiabilitiesCurrent
CY2022Q4	us-gaap	Finance Lease Liability Current Statement Of Financial Position Extensible List FinanceLeaseLiabilityCurrentStatementOfFinancialPositionExtensibleList	http://fasb.org/us-gaap/2022#AccountsPayableAndOtherAccruedLiabilitiesCurrent
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CY2022Q4	us-gaap	Finance Lease Liability Noncurrent Statement Of Financial Position Extensible List FinanceLeaseLiabilityNoncurrentStatementOfFinancialPositionExtensibleList	http://fasb.org/us-gaap/2022#OtherLiabilitiesNoncurrent
CY2022	us-gaap	Impairment Long Lived Asset Held For Use Statement Of Income Or Comprehensive Income Extensible Enumeration ImpairmentLongLivedAssetHeldForUseStatementOfIncomeOrComprehensiveIncomeExtensibleEnumeration	http://fasb.org/us-gaap/2022#SellingGeneralAndAdministrativeExpense
CY2022	dei	Document Type DocumentType	10-K
CY2022	dei	Document Annual Report DocumentAnnualReport	true
CY2022	dei	Document Period End Date DocumentPeriodEndDate	2022-12-31
CY2022	dei	Current Fiscal Year End Date CurrentFiscalYearEndDate	--12-31
CY2022	dei	Document Transition Report DocumentTransitionReport	false
CY2022	dei	Entity File Number EntityFileNumber	000-51222
CY2022	dei	Entity Registrant Name EntityRegistrantName	DEXCOM, INC.
CY2022	dei	Entity Incorporation State Country Code EntityIncorporationStateCountryCode	DE
CY2022	dei	Entity Tax Identification Number EntityTaxIdentificationNumber	33-0857544
CY2022	dei	Entity Address Address Line1 EntityAddressAddressLine1	6340 Sequence Drive
CY2022	dei	Entity Address City Or Town EntityAddressCityOrTown	San Diego
CY2022	dei	Entity Address State Or Province EntityAddressStateOrProvince	CA
CY2022	dei	Entity Address Postal Zip Code EntityAddressPostalZipCode	92121
CY2022	dei	City Area Code CityAreaCode	858
CY2022	dei	Local Phone Number LocalPhoneNumber	200-0200
CY2022	dei	Security12b Title Security12bTitle	Common Stock, $0.001 Par Value Per Share
CY2022	dei	Trading Symbol TradingSymbol	DXCM
CY2022	dei	Security Exchange Name SecurityExchangeName	NASDAQ
CY2022	dei	Entity Well Known Seasoned Issuer EntityWellKnownSeasonedIssuer	Yes
CY2022	dei	Entity Voluntary Filers EntityVoluntaryFilers	No
CY2022	dei	Entity Current Reporting Status EntityCurrentReportingStatus	Yes
CY2022	dei	Entity Interactive Data Current EntityInteractiveDataCurrent	Yes
CY2022	dei	Entity Filer Category EntityFilerCategory	Large Accelerated Filer
CY2022	dei	Entity Small Business EntitySmallBusiness	false
CY2022	dei	Entity Emerging Growth Company EntityEmergingGrowthCompany	false
CY2022	dei	Icfr Auditor Attestation Flag IcfrAuditorAttestationFlag	true
CY2022	dei	Entity Shell Company EntityShellCompany	false
CY2022Q2	dei	Entity Public Float EntityPublicFloat	29100000000	usd
CY2023Q1	dei	Entity Common Stock Shares Outstanding EntityCommonStockSharesOutstanding	386413690	shares
CY2022	dei	Auditor Firm AuditorFirmId	42
CY2022	dei	Auditor Name AuditorName	Ernst & Young LLP
CY2022	dei	Auditor Location AuditorLocation	San Diego, California
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CY2021Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	1052600000	usd
CY2022Q4	dxcm	Debt Securities Available For Sale And Equity Securities DebtSecuritiesAvailableForSaleAndEquitySecurities	1813900000	usd
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CY2022Q4	us-gaap	Convertible Long Term Notes Payable ConvertibleLongTermNotesPayable	1197700000	usd
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CY2022	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	390800000	usd
CY2021	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	256800000	usd
CY2020	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	297900000	usd
CY2022	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	49600000	usd
CY2021	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	39900000	usd
CY2020	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	-251800000	usd
CY2022	us-gaap	Net Income Loss NetIncomeLoss	341200000	usd
CY2021	us-gaap	Net Income Loss NetIncomeLoss	216900000	usd
CY2020	us-gaap	Net Income Loss NetIncomeLoss	549700000	usd
CY2022	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.88
CY2021	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.56
CY2020	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	1.46
CY2022	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	389400000	shares
CY2021	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	386900000	shares
CY2020	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	377500000	shares
CY2022	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.82
CY2021	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.53
CY2020	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	1.33
CY2022	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	427500000	shares
CY2021	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	428800000	shares
CY2020	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	420400000	shares
CY2021	us-gaap	Stockholders Equity Note Stock Split Conversion Ratio1 StockholdersEquityNoteStockSplitConversionRatio1	4
CY2020	us-gaap	Stockholders Equity Note Stock Split Conversion Ratio1 StockholdersEquityNoteStockSplitConversionRatio1	4
CY2022	us-gaap	Net Income Loss NetIncomeLoss	341200000	usd
CY2021	us-gaap	Net Income Loss NetIncomeLoss	216900000	usd
CY2020	us-gaap	Net Income Loss NetIncomeLoss	549700000	usd
CY2022	us-gaap	Other Comprehensive Income Foreign Currency Transaction And Translation Adjustment Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationAdjustmentNetOfTaxPortionAttributableToParent	-9800000	usd
CY2021	us-gaap	Other Comprehensive Income Foreign Currency Transaction And Translation Adjustment Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationAdjustmentNetOfTaxPortionAttributableToParent	-1000000.0	usd
CY2020	us-gaap	Other Comprehensive Income Foreign Currency Transaction And Translation Adjustment Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationAdjustmentNetOfTaxPortionAttributableToParent	1100000	usd
CY2022	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax	-2300000	usd
CY2021	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax	-1700000	usd
CY2020	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax	-200000	usd
CY2022	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	-12100000	usd
CY2021	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	-2700000	usd
CY2020	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	900000	usd
CY2022	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	329100000	usd
CY2021	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	214200000	usd
CY2020	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	550600000	usd
CY2019Q4	us-gaap	Stockholders Equity StockholdersEquity	882600000	usd
CY2020	us-gaap	Stock Issued During Period Value Employee Benefit Plan StockIssuedDuringPeriodValueEmployeeBenefitPlan	300000	usd
CY2020	us-gaap	Stock Issued During Period Value Employee Stock Purchase Plan StockIssuedDuringPeriodValueEmployeeStockPurchasePlan	15000000.0	usd
CY2020	dxcm	Adjustments To Additional Paid In Capital Tax Benefit From Equity Component Of Convertible Debt AdjustmentsToAdditionalPaidInCapitalTaxBenefitFromEquityComponentOfConvertibleDebt	-45600000	usd
CY2020	us-gaap	Stock Issued During Period Value Conversion Of Convertible Securities Net Of Adjustments StockIssuedDuringPeriodValueConversionOfConvertibleSecuritiesNetOfAdjustments	112900000	usd
CY2020	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	119400000	usd
CY2020	us-gaap	Net Income Loss NetIncomeLoss	549700000	usd
CY2020	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	900000	usd
CY2020Q4	us-gaap	Stockholders Equity StockholdersEquity	1551900000	usd
CY2021	us-gaap	Stock Issued During Period Value Employee Benefit Plan StockIssuedDuringPeriodValueEmployeeBenefitPlan	0	usd
CY2021	us-gaap	Stock Issued During Period Value Employee Stock Purchase Plan StockIssuedDuringPeriodValueEmployeeStockPurchasePlan	20300000	usd
CY2021	dxcm	Adjustments To Additional Paid In Capital Tax Benefit From Equity Component Of Convertible Debt AdjustmentsToAdditionalPaidInCapitalTaxBenefitFromEquityComponentOfConvertibleDebt	2000000.0	usd
CY2021	us-gaap	Stock Issued During Period Value Conversion Of Convertible Securities Net Of Adjustments StockIssuedDuringPeriodValueConversionOfConvertibleSecuritiesNetOfAdjustments	57200000	usd
CY2021	dxcm	Shares Received From Benefit Of Note Hedge Value SharesReceivedFromBenefitOfNoteHedgeValue	0	usd
CY2021	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	113400000	usd
CY2021	dxcm	Adjustments To Additional Paid In Capital Collaborative Research And Development Fee AdjustmentsToAdditionalPaidInCapitalCollaborativeResearchAndDevelopmentFee	87100000	usd
CY2021	us-gaap	Net Income Loss NetIncomeLoss	216900000	usd
CY2021	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	-2700000	usd
CY2021Q4	us-gaap	Stockholders Equity StockholdersEquity	2042100000	usd
CY2022	us-gaap	Stock Issued During Period Value Employee Benefit Plan StockIssuedDuringPeriodValueEmployeeBenefitPlan	0	usd
CY2022	us-gaap	Stock Issued During Period Value Employee Stock Purchase Plan StockIssuedDuringPeriodValueEmployeeStockPurchasePlan	22500000	usd
CY2022	dxcm	Stock Issued During Period Value Achievement Of Milestones StockIssuedDuringPeriodValueAchievementOfMilestones	-100000	usd
CY2022	us-gaap	Treasury Stock Value Acquired Cost Method TreasuryStockValueAcquiredCostMethod	557700000	usd
CY2022	dxcm	Adjustments To Additional Paid In Capital Tax Benefit From Equity Component Of Convertible Debt AdjustmentsToAdditionalPaidInCapitalTaxBenefitFromEquityComponentOfConvertibleDebt	400000	usd
CY2022	us-gaap	Stock Issued During Period Value Conversion Of Convertible Securities Net Of Adjustments StockIssuedDuringPeriodValueConversionOfConvertibleSecuritiesNetOfAdjustments	17400000	usd
CY2022	dxcm	Shares Received From Benefit Of Note Hedge Value SharesReceivedFromBenefitOfNoteHedgeValue	0	usd
CY2022	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	126500000	usd
CY2022	dxcm	Adjustments To Additional Paid In Capital Capitalization Of Sales Based Milestones AdjustmentsToAdditionalPaidInCapitalCapitalizationOfSalesBasedMilestones	152400000	usd
CY2022	us-gaap	Net Income Loss NetIncomeLoss	341200000	usd
CY2022	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	-12100000	usd
CY2022Q4	us-gaap	Stockholders Equity StockholdersEquity	2131800000	usd
CY2021	us-gaap	Stockholders Equity Note Stock Split Conversion Ratio1 StockholdersEquityNoteStockSplitConversionRatio1	4
CY2019	us-gaap	Stockholders Equity Note Stock Split Conversion Ratio1 StockholdersEquityNoteStockSplitConversionRatio1	4
CY2020	us-gaap	Stockholders Equity Note Stock Split Conversion Ratio1 StockholdersEquityNoteStockSplitConversionRatio1	4
CY2022	us-gaap	Net Income Loss NetIncomeLoss	341200000	usd
CY2021	us-gaap	Net Income Loss NetIncomeLoss	216900000	usd
CY2020	us-gaap	Net Income Loss NetIncomeLoss	549700000	usd
CY2022	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	155900000	usd
CY2021	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	102000000.0	usd
CY2020	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	67100000	usd
CY2022	us-gaap	Share Based Compensation ShareBasedCompensation	126500000	usd
CY2021	us-gaap	Share Based Compensation ShareBasedCompensation	113400000	usd
CY2020	us-gaap	Share Based Compensation ShareBasedCompensation	119400000	usd
CY2022	dxcm	Collaborative Research And Development Fee CollaborativeResearchAndDevelopmentFee	0	usd
CY2021	dxcm	Collaborative Research And Development Fee CollaborativeResearchAndDevelopmentFee	87100000	usd
CY2020	dxcm	Collaborative Research And Development Fee CollaborativeResearchAndDevelopmentFee	0	usd
CY2022	us-gaap	Gains Losses On Extinguishment Of Debt GainsLossesOnExtinguishmentOfDebt	0	usd
CY2021	us-gaap	Gains Losses On Extinguishment Of Debt GainsLossesOnExtinguishmentOfDebt	-100000	usd
CY2020	us-gaap	Gains Losses On Extinguishment Of Debt GainsLossesOnExtinguishmentOfDebt	0	usd
CY2022	us-gaap	Paid In Kind Interest PaidInKindInterest	6300000	usd
CY2021	us-gaap	Paid In Kind Interest PaidInKindInterest	7200000	usd
CY2020	us-gaap	Paid In Kind Interest PaidInKindInterest	7000000.0	usd
CY2022	us-gaap	Equity Securities Fv Ni Realized Gain Loss EquitySecuritiesFvNiRealizedGainLoss	200000	usd
CY2021	us-gaap	Equity Securities Fv Ni Realized Gain Loss EquitySecuritiesFvNiRealizedGainLoss	11600000	usd
CY2020	us-gaap	Equity Securities Fv Ni Realized Gain Loss EquitySecuritiesFvNiRealizedGainLoss	0	usd
CY2022	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	-21600000	usd
CY2021	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	15800000	usd
CY2020	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	-260500000	usd
CY2022	us-gaap	Other Noncash Income Expense OtherNoncashIncomeExpense	-34700000	usd
CY2021	us-gaap	Other Noncash Income Expense OtherNoncashIncomeExpense	-43600000	usd
CY2020	us-gaap	Other Noncash Income Expense OtherNoncashIncomeExpense	-13700000	usd
CY2022	us-gaap	Increase Decrease In Accounts Receivable IncreaseDecreaseInAccountsReceivable	199900000	usd
CY2021	us-gaap	Increase Decrease In Accounts Receivable IncreaseDecreaseInAccountsReceivable	75500000	usd
CY2020	us-gaap	Increase Decrease In Accounts Receivable IncreaseDecreaseInAccountsReceivable	142300000	usd
CY2022	us-gaap	Increase Decrease In Inventories IncreaseDecreaseInInventories	-49300000	usd
CY2021	us-gaap	Increase Decrease In Inventories IncreaseDecreaseInInventories	112200000	usd
CY2020	us-gaap	Increase Decrease In Inventories IncreaseDecreaseInInventories	114500000	usd
CY2022	us-gaap	Increase Decrease In Prepaid Deferred Expense And Other Assets IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets	131600000	usd
CY2021	us-gaap	Increase Decrease In Prepaid Deferred Expense And Other Assets IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets	21300000	usd
CY2020	us-gaap	Increase Decrease In Prepaid Deferred Expense And Other Assets IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets	2400000	usd
CY2022	dxcm	Increase Decreasein Operating Lease Assetsand Liabilities Net IncreaseDecreaseinOperatingLeaseAssetsandLiabilitiesNet	5800000	usd
CY2021	dxcm	Increase Decreasein Operating Lease Assetsand Liabilities Net IncreaseDecreaseinOperatingLeaseAssetsandLiabilitiesNet	100000	usd
CY2020	dxcm	Increase Decreasein Operating Lease Assetsand Liabilities Net IncreaseDecreaseinOperatingLeaseAssetsandLiabilitiesNet	800000	usd
CY2022	us-gaap	Increase Decrease In Accounts Payable And Accrued Liabilities IncreaseDecreaseInAccountsPayableAndAccruedLiabilities	295100000	usd
CY2021	us-gaap	Increase Decrease In Accounts Payable And Accrued Liabilities IncreaseDecreaseInAccountsPayableAndAccruedLiabilities	58000000.0	usd
CY2020	us-gaap	Increase Decrease In Accounts Payable And Accrued Liabilities IncreaseDecreaseInAccountsPayableAndAccruedLiabilities	194500000	usd
CY2022	us-gaap	Increase Decrease In Employee Related Liabilities IncreaseDecreaseInEmployeeRelatedLiabilities	8500000	usd
CY2021	us-gaap	Increase Decrease In Employee Related Liabilities IncreaseDecreaseInEmployeeRelatedLiabilities	10400000	usd
CY2020	us-gaap	Increase Decrease In Employee Related Liabilities IncreaseDecreaseInEmployeeRelatedLiabilities	26100000	usd
CY2022	us-gaap	Increase Decrease In Other Deferred Liability IncreaseDecreaseInOtherDeferredLiability	11100000	usd
CY2021	us-gaap	Increase Decrease In Other Deferred Liability IncreaseDecreaseInOtherDeferredLiability	8700000	usd
CY2020	us-gaap	Increase Decrease In Other Deferred Liability IncreaseDecreaseInOtherDeferredLiability	18600000	usd
CY2022	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	669500000	usd
CY2021	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	442500000	usd
CY2020	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	475600000	usd
CY2022	us-gaap	Payments To Acquire Available For Sale Securities Debt PaymentsToAcquireAvailableForSaleSecuritiesDebt	2266300000	usd
CY2021	us-gaap	Payments To Acquire Available For Sale Securities Debt PaymentsToAcquireAvailableForSaleSecuritiesDebt	2473100000	usd
CY2020	us-gaap	Payments To Acquire Available For Sale Securities Debt PaymentsToAcquireAvailableForSaleSecuritiesDebt	3058200000	usd
CY2022	us-gaap	Proceeds From Sale And Maturity Of Available For Sale Securities ProceedsFromSaleAndMaturityOfAvailableForSaleSecurities	2127800000	usd
CY2021	us-gaap	Proceeds From Sale And Maturity Of Available For Sale Securities ProceedsFromSaleAndMaturityOfAvailableForSaleSecurities	2666300000	usd
CY2020	us-gaap	Proceeds From Sale And Maturity Of Available For Sale Securities ProceedsFromSaleAndMaturityOfAvailableForSaleSecurities	2250500000	usd
CY2022	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	364800000	usd
CY2021	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	389200000	usd
CY2020	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	199000000.0	usd
CY2022	us-gaap	Payments To Acquire Businesses Net Of Cash Acquired PaymentsToAcquireBusinessesNetOfCashAcquired	3900000	usd
CY2021	us-gaap	Payments To Acquire Businesses Net Of Cash Acquired PaymentsToAcquireBusinessesNetOfCashAcquired	30200000	usd
CY2020	us-gaap	Payments To Acquire Businesses Net Of Cash Acquired PaymentsToAcquireBusinessesNetOfCashAcquired	0	usd
CY2022	us-gaap	Payments For Proceeds From Other Investing Activities PaymentsForProceedsFromOtherInvestingActivities	14300000	usd
CY2021	us-gaap	Payments For Proceeds From Other Investing Activities PaymentsForProceedsFromOtherInvestingActivities	-10100000	usd
CY2020	us-gaap	Payments For Proceeds From Other Investing Activities PaymentsForProceedsFromOtherInvestingActivities	11300000	usd
CY2022	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-521500000	usd
CY2021	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-216100000	usd
CY2020	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-1018000000	usd
CY2022	us-gaap	Proceeds From Issuance Of Common Stock ProceedsFromIssuanceOfCommonStock	22500000	usd
CY2021	us-gaap	Proceeds From Issuance Of Common Stock ProceedsFromIssuanceOfCommonStock	20300000	usd
CY2020	us-gaap	Proceeds From Issuance Of Common Stock ProceedsFromIssuanceOfCommonStock	15300000	usd
CY2022	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	557700000	usd
CY2021	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	0	usd
CY2020	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	0	usd
CY2022	us-gaap	Proceeds From Convertible Debt ProceedsFromConvertibleDebt	0	usd
CY2021	us-gaap	Proceeds From Convertible Debt ProceedsFromConvertibleDebt	0	usd
CY2020	us-gaap	Proceeds From Convertible Debt ProceedsFromConvertibleDebt	1188800000	usd
CY2022	dxcm	Payments For Repurchase Of Convertible Notes PaymentsForRepurchaseOfConvertibleNotes	0	usd
CY2021	dxcm	Payments For Repurchase Of Convertible Notes PaymentsForRepurchaseOfConvertibleNotes	0	usd
CY2020	dxcm	Payments For Repurchase Of Convertible Notes PaymentsForRepurchaseOfConvertibleNotes	282600000	usd
CY2022	us-gaap	Proceeds From Payments For Other Financing Activities ProceedsFromPaymentsForOtherFinancingActivities	-17300000	usd
CY2021	us-gaap	Proceeds From Payments For Other Financing Activities ProceedsFromPaymentsForOtherFinancingActivities	-9900000	usd
CY2020	us-gaap	Proceeds From Payments For Other Financing Activities ProceedsFromPaymentsForOtherFinancingActivities	-9400000	usd
CY2022	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-552500000	usd
CY2021	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	10400000	usd
CY2020	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	912100000	usd
CY2022	us-gaap	Effect Of Exchange Rate On Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	-5800000	usd
CY2021	us-gaap	Effect Of Exchange Rate On Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	-1400000	usd
CY2020	us-gaap	Effect Of Exchange Rate On Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	2100000	usd
CY2022	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	-410300000	usd
CY2021	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	235400000	usd
CY2020	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	371800000	usd
CY2021Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	1053600000	usd
CY2020Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	818200000	usd
CY2019Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	446400000	usd
CY2022Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	643300000	usd
CY2021Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	1053600000	usd
CY2020Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	818200000	usd
CY2022Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	642300000	usd
CY2021Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	1052600000	usd
CY2020Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	817600000	usd
CY2022Q4	us-gaap	Restricted Cash RestrictedCash	1000000.0	usd
CY2021Q4	us-gaap	Restricted Cash RestrictedCash	1000000.0	usd
CY2020Q4	us-gaap	Restricted Cash RestrictedCash	600000	usd
CY2022Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	643300000	usd
CY2021Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	1053600000	usd
CY2020Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	818200000	usd
CY2022	us-gaap	Debt Conversion Converted Instrument Amount1 DebtConversionConvertedInstrumentAmount1	35900000	usd
CY2021	us-gaap	Debt Conversion Converted Instrument Amount1 DebtConversionConvertedInstrumentAmount1	157700000	usd
CY2020	us-gaap	Debt Conversion Converted Instrument Amount1 DebtConversionConvertedInstrumentAmount1	1350900000	usd
CY2022	dxcm	Treasury Stock Value Benefit Received From Note Hedge TreasuryStockValueBenefitReceivedFromNoteHedge	33500000	usd
CY2021	dxcm	Treasury Stock Value Benefit Received From Note Hedge TreasuryStockValueBenefitReceivedFromNoteHedge	130800000	usd
CY2020	dxcm	Treasury Stock Value Benefit Received From Note Hedge TreasuryStockValueBenefitReceivedFromNoteHedge	0	usd
CY2022	us-gaap	Noncash Or Part Noncash Acquisition Fixed Assets Acquired1 NoncashOrPartNoncashAcquisitionFixedAssetsAcquired1	25700000	usd
CY2021	us-gaap	Noncash Or Part Noncash Acquisition Fixed Assets Acquired1 NoncashOrPartNoncashAcquisitionFixedAssetsAcquired1	45400000	usd
CY2020	us-gaap	Noncash Or Part Noncash Acquisition Fixed Assets Acquired1 NoncashOrPartNoncashAcquisitionFixedAssetsAcquired1	35300000	usd
CY2022	us-gaap	Interest Paid Net InterestPaidNet	12200000	usd
CY2021	us-gaap	Interest Paid Net InterestPaidNet	11600000	usd
CY2020	us-gaap	Interest Paid Net InterestPaidNet	10600000	usd
CY2022	us-gaap	Income Taxes Paid IncomeTaxesPaid	114200000	usd
CY2021	us-gaap	Income Taxes Paid IncomeTaxesPaid	16800000	usd
CY2020	us-gaap	Income Taxes Paid IncomeTaxesPaid	3600000	usd
CY2022Q2	us-gaap	Stockholders Equity Note Stock Split Conversion Ratio1 StockholdersEquityNoteStockSplitConversionRatio1	4
CY2022Q2	us-gaap	Common Stock Par Or Stated Value Per Share CommonStockParOrStatedValuePerShare	0.001
CY2022	us-gaap	Use Of Estimates UseOfEstimates	<div style="margin-bottom:6pt;margin-top:6pt"><table style="border-collapse:collapse;display:inline-table;margin-bottom:5pt;vertical-align:text-bottom;width:99.415%"><tr><td style="width:1.0%"/><td style="width:18.900%"/><td style="width:0.1%"/><td style="width:1.0%"/><td style="width:18.900%"/><td style="width:0.1%"/><td style="width:1.0%"/><td style="width:18.900%"/><td style="width:0.1%"/><td style="width:1.0%"/><td style="width:18.900%"/><td style="width:0.1%"/><td style="width:1.0%"/><td style="width:18.900%"/><td style="width:0.1%"/></tr><tr><td colspan="15" style="border-bottom:1pt dotted #32ad10;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#32ad10;font-family:'Arial',sans-serif;font-size:12pt;font-style:italic;font-weight:700;line-height:120%">Use of Estimates</span></td></tr></table></div><div style="margin-bottom:6pt;margin-top:6pt;text-indent:22.5pt"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">The preparation of consolidated financial statements in conformity with U.S. generally accepted accounting principles, or GAAP, requires us to make certain estimates and assumptions that affect the amounts reported in our consolidated financial statements and the disclosures made in the accompanying notes. Areas requiring significant estimates include rebates, excess or obsolete inventories and the valuation of inventory, accruals for litigation contingencies, and the amount of our worldwide tax provision and the realizability of deferred tax assets. Despite our intention to establish accurate estimates and use reasonable assumptions, actual results may differ from our estimates.</span></div>
CY2022	dxcm	Maturity Threshold Of Investments Classified To Cash Equivalents MaturityThresholdOfInvestmentsClassifiedToCashEquivalents	P90D
CY2022	us-gaap	Concentration Risk Credit Risk ConcentrationRiskCreditRisk	<div style="margin-bottom:6pt;margin-top:6pt"><table style="border-collapse:collapse;display:inline-table;margin-bottom:5pt;vertical-align:text-bottom;width:99.415%"><tr><td style="width:1.0%"/><td style="width:18.900%"/><td style="width:0.1%"/><td style="width:1.0%"/><td style="width:18.900%"/><td style="width:0.1%"/><td style="width:1.0%"/><td style="width:18.900%"/><td style="width:0.1%"/><td style="width:1.0%"/><td style="width:18.900%"/><td style="width:0.1%"/><td style="width:1.0%"/><td style="width:18.900%"/><td style="width:0.1%"/></tr><tr><td colspan="15" style="border-bottom:1pt dotted #32ad10;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#32ad10;font-family:'Arial',sans-serif;font-size:12pt;font-style:italic;font-weight:700;line-height:120%">Concentration of Credit Risk and Significant Customers</span></td></tr></table></div><div style="margin-bottom:6pt;margin-top:6pt;text-indent:22.5pt"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">Financial instruments which potentially subject us to concentrations of credit risk consist primarily of cash, cash equivalents, short-term marketable securities, and accounts receivable. We limit our exposure to credit risk by placing our cash and investments with a few major financial institutions. We have also established guidelines regarding diversification of our investments and their maturities that are designed to maintain principal and </span></div>maximize liquidity. We review these guidelines periodically and modify them to take advantage of trends in yields and interest rates and changes in our operations and financial position.
CY2021	us-gaap	Goodwill Impairment Loss GoodwillImpairmentLoss	0	usd
CY2022	us-gaap	Goodwill Impairment Loss GoodwillImpairmentLoss	0	usd
CY2020	us-gaap	Goodwill Impairment Loss GoodwillImpairmentLoss	0	usd
CY2022	us-gaap	Impairment Of Intangible Assets Excluding Goodwill ImpairmentOfIntangibleAssetsExcludingGoodwill	0	usd
CY2020	us-gaap	Impairment Of Intangible Assets Excluding Goodwill ImpairmentOfIntangibleAssetsExcludingGoodwill	0	usd
CY2021	us-gaap	Impairment Of Intangible Assets Excluding Goodwill ImpairmentOfIntangibleAssetsExcludingGoodwill	0	usd
CY2022	dxcm	Revenue Recognition Sales Returns Coverage Period RevenueRecognitionSalesReturnsCoveragePeriod	P30D
CY2022Q4	us-gaap	Unbilled Contracts Receivable UnbilledContractsReceivable	9000000.0	usd
CY2022Q4	us-gaap	Contract With Customer Liability Noncurrent ContractWithCustomerLiabilityNoncurrent	19000000.0	usd
CY2021Q4	us-gaap	Contract With Customer Liability Noncurrent ContractWithCustomerLiabilityNoncurrent	16100000	usd
CY2022Q2	us-gaap	Stockholders Equity Note Stock Split Conversion Ratio1 StockholdersEquityNoteStockSplitConversionRatio1	4
CY2022Q2	us-gaap	Stockholders Equity Note Stock Split Conversion Ratio1 StockholdersEquityNoteStockSplitConversionRatio1	4
CY2020Q4	us-gaap	Deferred Income Tax Assets Net DeferredIncomeTaxAssetsNet	307700000	usd
CY2020Q4	us-gaap	Convertible Long Term Notes Payable ConvertibleLongTermNotesPayable	2033100000	usd
CY2020Q4	us-gaap	Common Stock Value Outstanding CommonStockValueOutstanding	400000	usd
CY2020Q4	us-gaap	Additional Paid In Capital Common Stock AdditionalPaidInCapitalCommonStock	1726500000	usd
CY2020Q4	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	-78200000	usd
CY2021Q4	us-gaap	Deferred Income Tax Assets Net DeferredIncomeTaxAssetsNet	290500000	usd
CY2021Q4	us-gaap	Convertible Long Term Notes Payable ConvertibleLongTermNotesPayable	1981800000	usd
CY2021Q4	us-gaap	Common Stock Value Outstanding CommonStockValueOutstanding	400000	usd
CY2021Q4	us-gaap	Additional Paid In Capital Common Stock AdditionalPaidInCapitalCommonStock	2108700000	usd
CY2021Q4	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	138700000	usd
CY2020	us-gaap	Gains Losses On Extinguishment Of Debt GainsLossesOnExtinguishmentOfDebt	0	usd
CY2020	us-gaap	Interest Expense InterestExpense	17700000	usd
CY2020	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	297900000	usd
CY2020	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	-251800000	usd
CY2020	us-gaap	Net Income Loss NetIncomeLoss	549700000	usd
CY2020	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	1.46
CY2020	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	1.33
CY2020	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	420400000	shares
CY2020	us-gaap	Interest On Convertible Debt Net Of Tax InterestOnConvertibleDebtNetOfTax	11100000	usd
CY2021	us-gaap	Gains Losses On Extinguishment Of Debt GainsLossesOnExtinguishmentOfDebt	-100000	usd
CY2021	us-gaap	Interest Expense InterestExpense	18800000	usd
CY2021	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	256800000	usd
CY2021	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	39900000	usd
CY2021	us-gaap	Net Income Loss NetIncomeLoss	216900000	usd
CY2021	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.56
CY2021	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.53
CY2021	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	428800000	shares
CY2021	us-gaap	Interest On Convertible Debt Net Of Tax InterestOnConvertibleDebtNetOfTax	11400000	usd
CY2022Q4	us-gaap	Prepaid Expense And Other Assets Current PrepaidExpenseAndOtherAssetsCurrent	192600000	usd
CY2022Q4	us-gaap	Deferred Income Tax Assets Net DeferredIncomeTaxAssetsNet	341200000	usd
CY2022Q4	us-gaap	Convertible Notes Payable Current ConvertibleNotesPayableCurrent	772600000	usd
CY2022Q4	us-gaap	Convertible Long Term Notes Payable ConvertibleLongTermNotesPayable	1197700000	usd
CY2022Q4	us-gaap	Additional Paid In Capital Common Stock AdditionalPaidInCapitalCommonStock	2258100000	usd
CY2022Q4	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	479900000	usd
CY2022	us-gaap	Gains Losses On Extinguishment Of Debt GainsLossesOnExtinguishmentOfDebt	0	usd
CY2022	us-gaap	Interest Expense InterestExpense	18600000	usd
CY2022	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	390800000	usd
CY2022	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	49600000	usd
CY2022	us-gaap	Net Income Loss NetIncomeLoss	341200000	usd
CY2022	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.88
CY2022	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.82
CY2022	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	427500000	shares
CY2022	us-gaap	Interest On Convertible Debt Net Of Tax InterestOnConvertibleDebtNetOfTax	11000000	usd
CY2022	us-gaap	Advertising Expense AdvertisingExpense	133000000	usd
CY2021	us-gaap	Advertising Expense AdvertisingExpense	126400000	usd
CY2020	us-gaap	Advertising Expense AdvertisingExpense	76500000	usd
CY2022	us-gaap	Net Income Loss NetIncomeLoss	341200000	usd
CY2021	us-gaap	Net Income Loss NetIncomeLoss	216900000	usd
CY2020	us-gaap	Net Income Loss NetIncomeLoss	549700000	usd
CY2022	us-gaap	Interest On Convertible Debt Net Of Tax InterestOnConvertibleDebtNetOfTax	11000000.0	usd
CY2021	us-gaap	Interest On Convertible Debt Net Of Tax InterestOnConvertibleDebtNetOfTax	11400000	usd
CY2020	us-gaap	Interest On Convertible Debt Net Of Tax InterestOnConvertibleDebtNetOfTax	11100000	usd
CY2022	us-gaap	Net Income Loss Attributable To Parent Diluted NetIncomeLossAttributableToParentDiluted	352200000	usd
CY2021	us-gaap	Net Income Loss Attributable To Parent Diluted NetIncomeLossAttributableToParentDiluted	228300000	usd
CY2020	us-gaap	Net Income Loss Attributable To Parent Diluted NetIncomeLossAttributableToParentDiluted	560800000	usd
CY2022	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.88
CY2021	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.56
CY2020	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	1.46
CY2022	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.82
CY2021	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.53
CY2020	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	1.33
CY2022	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	389400000	shares
CY2021	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	386900000	shares
CY2020	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	377500000	shares
CY2022	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	427500000	shares
CY2021	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	428800000	shares
CY2020	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	420400000	shares
CY2022	dxcm	Shares Issued In Connection With The Restated Collaboration Agreement SharesIssuedInConnectionWithTheRestatedCollaborationAgreement	2945508	shares
CY2022Q4	us-gaap	Cash Equivalents At Carrying Value CashEquivalentsAtCarryingValue	420700000	usd
CY2022Q4	us-gaap	Available For Sale Securities Debt Securities AvailableForSaleSecuritiesDebtSecurities	1813900000	usd
CY2022Q4	us-gaap	Other Assets Fair Value Disclosure OtherAssetsFairValueDisclosure	10200000	usd
CY2022Q4	us-gaap	Assets Fair Value Disclosure AssetsFairValueDisclosure	2244800000	usd
CY2021Q4	us-gaap	Cash Equivalents At Carrying Value CashEquivalentsAtCarryingValue	831400000	usd
CY2021Q4	us-gaap	Available For Sale Securities Debt Securities AvailableForSaleSecuritiesDebtSecurities	1678600000	usd
CY2021Q4	us-gaap	Other Assets Fair Value Disclosure OtherAssetsFairValueDisclosure	7000000.0	usd
CY2021Q4	us-gaap	Assets Fair Value Disclosure AssetsFairValueDisclosure	2517000000	usd
CY2022	dxcm	Fair Value Assets Level3 Transfers Amount FairValueAssetsLevel3TransfersAmount	0	usd
CY2021	dxcm	Fair Value Assets Level3 Transfers Amount FairValueAssetsLevel3TransfersAmount	0	usd
CY2022Q4	us-gaap	Equity Securities Without Readily Determinable Fair Value Amount EquitySecuritiesWithoutReadilyDeterminableFairValueAmount	19000000	usd
CY2021Q4	us-gaap	Equity Securities Without Readily Determinable Fair Value Amount EquitySecuritiesWithoutReadilyDeterminableFairValueAmount	4500000	usd
CY2022	us-gaap	Impairment Of Long Lived Assets Held For Use ImpairmentOfLongLivedAssetsHeldForUse	23000000	usd
CY2021	us-gaap	Impairment Of Long Lived Assets Held For Use ImpairmentOfLongLivedAssetsHeldForUse	0	usd
CY2020	us-gaap	Impairment Of Long Lived Assets Held For Use ImpairmentOfLongLivedAssetsHeldForUse	0	usd
CY2022Q4	us-gaap	Available For Sale Debt Securities Amortized Cost Basis AvailableForSaleDebtSecuritiesAmortizedCostBasis	1819000000	usd
CY2022Q4	us-gaap	Available For Sale Debt Securities Accumulated Gross Unrealized Gain Before Tax AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax	200000	usd
CY2022Q4	us-gaap	Available For Sale Debt Securities Accumulated Gross Unrealized Loss Before Tax AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax	5300000	usd
CY2022Q4	us-gaap	Available For Sale Securities Debt Securities AvailableForSaleSecuritiesDebtSecurities	1813900000	usd
CY2021Q4	us-gaap	Available For Sale Debt Securities Amortized Cost Basis AvailableForSaleDebtSecuritiesAmortizedCostBasis	1680600000	usd
CY2021Q4	us-gaap	Available For Sale Debt Securities Accumulated Gross Unrealized Gain Before Tax AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax	0	usd
CY2021Q4	us-gaap	Available For Sale Debt Securities Accumulated Gross Unrealized Loss Before Tax AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax	2000000.0	usd
CY2021Q4	us-gaap	Available For Sale Securities Debt Securities AvailableForSaleSecuritiesDebtSecurities	1678600000	usd
CY2022	us-gaap	Debt Instrument Term DebtInstrumentTerm	P12M
CY2022Q4	us-gaap	Available For Sale Securities Debt Securities Current AvailableForSaleSecuritiesDebtSecuritiesCurrent	1810000000	usd
CY2021	us-gaap	Debt Instrument Term DebtInstrumentTerm	P12M
CY2021Q4	us-gaap	Available For Sale Securities Debt Securities Current AvailableForSaleSecuritiesDebtSecuritiesCurrent	1360000000	usd
CY2021Q4	us-gaap	Available For Sale Securities Debt Securities Noncurrent AvailableForSaleSecuritiesDebtSecuritiesNoncurrent	320700000	usd
CY2020	us-gaap	Debt Securities Available For Sale Realized Gain Loss DebtSecuritiesAvailableForSaleRealizedGainLoss	0	usd
CY2021	us-gaap	Debt Securities Available For Sale Realized Gain Loss DebtSecuritiesAvailableForSaleRealizedGainLoss	0	usd
CY2022	us-gaap	Debt Securities Available For Sale Realized Gain Loss DebtSecuritiesAvailableForSaleRealizedGainLoss	0	usd
CY2021	us-gaap	Debt And Equity Securities Unrealized Gain Loss DebtAndEquitySecuritiesUnrealizedGainLoss	0	usd
CY2022	us-gaap	Debt And Equity Securities Unrealized Gain Loss DebtAndEquitySecuritiesUnrealizedGainLoss	0	usd
CY2020	us-gaap	Debt And Equity Securities Unrealized Gain Loss DebtAndEquitySecuritiesUnrealizedGainLoss	0	usd
CY2022	us-gaap	Debt And Equity Securities Gain Loss DebtAndEquitySecuritiesGainLoss	200000	usd
CY2021	us-gaap	Debt And Equity Securities Gain Loss DebtAndEquitySecuritiesGainLoss	11600000	usd
CY2021Q4	us-gaap	Inventory Finished Goods Net Of Reserves InventoryFinishedGoodsNetOfReserves	195900000	usd
CY2022Q4	us-gaap	Accounts Receivable Gross AccountsReceivableGross	720600000	usd
CY2021Q4	us-gaap	Accounts Receivable Gross AccountsReceivableGross	519700000	usd
CY2022Q4	us-gaap	Allowance For Doubtful Accounts Receivable AllowanceForDoubtfulAccountsReceivable	7300000	usd
CY2021Q4	us-gaap	Allowance For Doubtful Accounts Receivable AllowanceForDoubtfulAccountsReceivable	5400000	usd
CY2022Q4	us-gaap	Accounts Receivable Net AccountsReceivableNet	713300000	usd
CY2021Q4	us-gaap	Accounts Receivable Net AccountsReceivableNet	514300000	usd
CY2022Q4	dxcm	Accounts Receivable Allowance For Credit Loss Cash Discount AccountsReceivableAllowanceForCreditLossCashDiscount	-8300000	usd
CY2021Q4	dxcm	Accounts Receivable Allowance For Credit Loss Cash Discount AccountsReceivableAllowanceForCreditLossCashDiscount	-13700000	usd
CY2020Q4	dxcm	Accounts Receivable Allowance For Credit Loss Cash Discount AccountsReceivableAllowanceForCreditLossCashDiscount	-15900000	usd
CY2022Q4	us-gaap	Inventory Raw Materials Net Of Reserves InventoryRawMaterialsNetOfReserves	159000000.0	usd
CY2021Q4	us-gaap	Inventory Raw Materials Net Of Reserves InventoryRawMaterialsNetOfReserves	145200000	usd
CY2022Q4	us-gaap	Inventory Work In Process Net Of Reserves InventoryWorkInProcessNetOfReserves	17200000	usd
CY2021Q4	us-gaap	Inventory Work In Process Net Of Reserves InventoryWorkInProcessNetOfReserves	16200000	usd
CY2022Q4	us-gaap	Inventory Finished Goods Net Of Reserves InventoryFinishedGoodsNetOfReserves	130500000	usd
CY2022Q4	us-gaap	Inventory Net InventoryNet	306700000	usd
CY2021Q4	us-gaap	Inventory Net InventoryNet	357300000	usd
CY2022Q4	us-gaap	Prepaid Expense Current PrepaidExpenseCurrent	48900000	usd
CY2021Q4	us-gaap	Prepaid Expense Current PrepaidExpenseCurrent	39800000	usd
CY2022Q4	dxcm	Prepaid Inventory Current PrepaidInventoryCurrent	67800000	usd
CY2021Q4	dxcm	Prepaid Inventory Current PrepaidInventoryCurrent	12100000	usd
CY2022Q4	us-gaap	Income Taxes Receivable IncomeTaxesReceivable	38900000	usd
CY2021Q4	us-gaap	Income Taxes Receivable IncomeTaxesReceivable	2300000	usd
CY2022Q4	us-gaap	Other Assets Current OtherAssetsCurrent	37000000.0	usd
CY2021Q4	us-gaap	Other Assets Current OtherAssetsCurrent	27400000	usd
CY2022Q4	us-gaap	Prepaid Expense And Other Assets Current PrepaidExpenseAndOtherAssetsCurrent	192600000	usd
CY2021Q4	us-gaap	Prepaid Expense And Other Assets Current PrepaidExpenseAndOtherAssetsCurrent	81600000	usd
CY2022Q4	us-gaap	Property Plant And Equipment And Finance Lease Right Of Use Asset Before Accumulated Depreciation And Amortization PropertyPlantAndEquipmentAndFinanceLeaseRightOfUseAssetBeforeAccumulatedDepreciationAndAmortization	1418800000	usd
CY2021Q4	us-gaap	Property Plant And Equipment And Finance Lease Right Of Use Asset Before Accumulated Depreciation And Amortization PropertyPlantAndEquipmentAndFinanceLeaseRightOfUseAssetBeforeAccumulatedDepreciationAndAmortization	1033300000	usd
CY2022Q4	us-gaap	Property Plant And Equipment And Finance Lease Right Of Use Asset Accumulated Depreciation And Amortization PropertyPlantAndEquipmentAndFinanceLeaseRightOfUseAssetAccumulatedDepreciationAndAmortization	363200000	usd
CY2021Q4	us-gaap	Property Plant And Equipment And Finance Lease Right Of Use Asset Accumulated Depreciation And Amortization PropertyPlantAndEquipmentAndFinanceLeaseRightOfUseAssetAccumulatedDepreciationAndAmortization	231500000	usd
CY2022Q4	us-gaap	Property Plant And Equipment And Finance Lease Right Of Use Asset After Accumulated Depreciation And Amortization PropertyPlantAndEquipmentAndFinanceLeaseRightOfUseAssetAfterAccumulatedDepreciationAndAmortization	1055600000	usd
CY2021Q4	us-gaap	Property Plant And Equipment And Finance Lease Right Of Use Asset After Accumulated Depreciation And Amortization PropertyPlantAndEquipmentAndFinanceLeaseRightOfUseAssetAfterAccumulatedDepreciationAndAmortization	801800000	usd
CY2022	us-gaap	Depreciation Depreciation	144100000	usd
CY2021	us-gaap	Depreciation Depreciation	96300000	usd
CY2020	us-gaap	Depreciation Depreciation	64000000.0	usd
CY2022	us-gaap	Gain Loss On Sale Of Property Plant Equipment GainLossOnSaleOfPropertyPlantEquipment	-2200000	usd
CY2021	us-gaap	Gain Loss On Sale Of Property Plant Equipment GainLossOnSaleOfPropertyPlantEquipment	-24500000	usd
CY2020	us-gaap	Gain Loss On Sale Of Property Plant Equipment GainLossOnSaleOfPropertyPlantEquipment	-13600000	usd
CY2022	us-gaap	Finite Lived Intangible Asset Useful Life FiniteLivedIntangibleAssetUsefulLife	P4Y10M24D
CY2022Q4	us-gaap	Finite Lived Intangible Assets Gross FiniteLivedIntangibleAssetsGross	195500000	usd
CY2022Q4	us-gaap	Finite Lived Intangible Assets Accumulated Amortization FiniteLivedIntangibleAssetsAccumulatedAmortization	22200000	usd
CY2022Q4	us-gaap	Finite Lived Intangible Assets Net FiniteLivedIntangibleAssetsNet	173300000	usd
CY2021	us-gaap	Finite Lived Intangible Asset Useful Life FiniteLivedIntangibleAssetUsefulLife	P4Y
CY2021Q4	us-gaap	Finite Lived Intangible Assets Gross FiniteLivedIntangibleAssetsGross	42800000	usd
CY2021Q4	us-gaap	Finite Lived Intangible Assets Accumulated Amortization FiniteLivedIntangibleAssetsAccumulatedAmortization	11300000	usd
CY2021Q4	us-gaap	Finite Lived Intangible Assets Net FiniteLivedIntangibleAssetsNet	31500000	usd
CY2022	dxcm	Amortization Of Intangible Assets Included In Cost Of Sales AmortizationOfIntangibleAssetsIncludedInCostOfSales	4300000	usd
CY2021	dxcm	Amortization Of Intangible Assets Included In Cost Of Sales AmortizationOfIntangibleAssetsIncludedInCostOfSales	1900000	usd
CY2020	dxcm	Amortization Of Intangible Assets Included In Cost Of Sales AmortizationOfIntangibleAssetsIncludedInCostOfSales	600000	usd
CY2022	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	7500000	usd
CY2021	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	3700000	usd
CY2020	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	2500000	usd
CY2022	dxcm	Amortization Of Intangibles Included In Cost Of Sales And Operating Expenses AmortizationOfIntangiblesIncludedInCostOfSalesAndOperatingExpenses	11800000	usd
CY2021	dxcm	Amortization Of Intangibles Included In Cost Of Sales And Operating Expenses AmortizationOfIntangiblesIncludedInCostOfSalesAndOperatingExpenses	5600000	usd
CY2020	dxcm	Amortization Of Intangibles Included In Cost Of Sales And Operating Expenses AmortizationOfIntangiblesIncludedInCostOfSalesAndOperatingExpenses	3100000	usd
CY2022Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Next Twelve Months FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths	37300000	usd
CY2022Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Two FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo	35800000	usd
CY2022Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Three FiniteLivedIntangibleAssetsAmortizationExpenseYearThree	33200000	usd
CY2022Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Four FiniteLivedIntangibleAssetsAmortizationExpenseYearFour	31300000	usd
CY2022Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Five FiniteLivedIntangibleAssetsAmortizationExpenseYearFive	28600000	usd
CY2022Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense After Year Five FiniteLivedIntangibleAssetsAmortizationExpenseAfterYearFive	7100000	usd
CY2022Q4	us-gaap	Finite Lived Intangible Assets Net FiniteLivedIntangibleAssetsNet	173300000	usd
CY2022Q4	us-gaap	Other Assets Noncurrent OtherAssetsNoncurrent	47100000	usd
CY2021Q4	us-gaap	Other Assets Noncurrent OtherAssetsNoncurrent	10500000	usd
CY2022Q4	us-gaap	Accounts Payable Trade Current AccountsPayableTradeCurrent	237900000	usd
CY2021Q4	us-gaap	Accounts Payable Trade Current AccountsPayableTradeCurrent	189400000	usd
CY2022Q4	dxcm	Accrued Tax Audit And Legal Fees AccruedTaxAuditAndLegalFees	44800000	usd
CY2021Q4	dxcm	Accrued Tax Audit And Legal Fees AccruedTaxAuditAndLegalFees	40600000	usd
CY2022Q4	dxcm	Pharmacy Rebates PharmacyRebates	556400000	usd
CY2021Q4	dxcm	Pharmacy Rebates PharmacyRebates	260500000	usd
CY2022Q4	us-gaap	Standard Product Warranty Accrual StandardProductWarrantyAccrual	12800000	usd
CY2021Q4	us-gaap	Standard Product Warranty Accrual StandardProductWarrantyAccrual	12900000	usd
CY2022Q4	dxcm	Contractual Obligations Current ContractualObligationsCurrent	0	usd
CY2021Q4	dxcm	Contractual Obligations Current ContractualObligationsCurrent	15000000.0	usd
CY2022Q4	us-gaap	Other Accrued Liabilities Current OtherAccruedLiabilitiesCurrent	49900000	usd
CY2021Q4	us-gaap	Other Accrued Liabilities Current OtherAccruedLiabilitiesCurrent	54600000	usd
CY2022Q4	us-gaap	Accounts Payable And Other Accrued Liabilities Current AccountsPayableAndOtherAccruedLiabilitiesCurrent	901800000	usd
CY2021Q4	us-gaap	Accounts Payable And Other Accrued Liabilities Current AccountsPayableAndOtherAccruedLiabilitiesCurrent	573000000.0	usd
CY2022Q4	dxcm	Accrued Wages Bonuses And Taxes Current AccruedWagesBonusesAndTaxesCurrent	96800000	usd
CY2021Q4	dxcm	Accrued Wages Bonuses And Taxes Current AccruedWagesBonusesAndTaxesCurrent	91800000	usd
CY2022Q4	us-gaap	Accrued Employee Benefits Current AccruedEmployeeBenefitsCurrent	37500000	usd
CY2021Q4	us-gaap	Accrued Employee Benefits Current AccruedEmployeeBenefitsCurrent	33400000	usd
CY2022Q4	us-gaap	Employee Related Liabilities Current EmployeeRelatedLiabilitiesCurrent	134300000	usd
CY2021Q4	us-gaap	Employee Related Liabilities Current EmployeeRelatedLiabilitiesCurrent	125200000	usd
CY2021Q4	us-gaap	Standard Product Warranty Accrual StandardProductWarrantyAccrual	12900000	usd
CY2020Q4	us-gaap	Standard Product Warranty Accrual StandardProductWarrantyAccrual	11700000	usd
CY2019Q4	us-gaap	Standard Product Warranty Accrual StandardProductWarrantyAccrual	7400000	usd
CY2022	dxcm	Standard Product Warranty Accrual Charges To Costs And Expenses StandardProductWarrantyAccrualChargesToCostsAndExpenses	43000000.0	usd
CY2021	dxcm	Standard Product Warranty Accrual Charges To Costs And Expenses StandardProductWarrantyAccrualChargesToCostsAndExpenses	41500000	usd
CY2020	dxcm	Standard Product Warranty Accrual Charges To Costs And Expenses StandardProductWarrantyAccrualChargesToCostsAndExpenses	41300000	usd
CY2022	us-gaap	Product Warranty Accrual Payments ProductWarrantyAccrualPayments	43100000	usd
CY2021	us-gaap	Product Warranty Accrual Payments ProductWarrantyAccrualPayments	40300000	usd
CY2020	us-gaap	Product Warranty Accrual Payments ProductWarrantyAccrualPayments	37000000.0	usd
CY2022Q4	us-gaap	Standard Product Warranty Accrual StandardProductWarrantyAccrual	12800000	usd
CY2021Q4	us-gaap	Standard Product Warranty Accrual StandardProductWarrantyAccrual	12900000	usd
CY2020Q4	us-gaap	Standard Product Warranty Accrual StandardProductWarrantyAccrual	11700000	usd
CY2022Q4	us-gaap	Finance Lease Liability Noncurrent FinanceLeaseLiabilityNoncurrent	59600000	usd
CY2021Q4	us-gaap	Finance Lease Liability Noncurrent FinanceLeaseLiabilityNoncurrent	57000000.0	usd
CY2022Q4	us-gaap	Contract With Customer Liability Noncurrent ContractWithCustomerLiabilityNoncurrent	19000000.0	usd
CY2021Q4	us-gaap	Contract With Customer Liability Noncurrent ContractWithCustomerLiabilityNoncurrent	16100000	usd
CY2022Q4	us-gaap	Deferred Income Tax Liabilities Net DeferredIncomeTaxLiabilitiesNet	4900000	usd
CY2021Q4	us-gaap	Deferred Income Tax Liabilities Net DeferredIncomeTaxLiabilitiesNet	5900000	usd
CY2022Q4	dxcm	Other Tax Liabilities Noncurrent OtherTaxLiabilitiesNoncurrent	32700000	usd
CY2021Q4	dxcm	Other Tax Liabilities Noncurrent OtherTaxLiabilitiesNoncurrent	2800000	usd
CY2022Q4	us-gaap	Other Sundry Liabilities Noncurrent OtherSundryLiabilitiesNoncurrent	12100000	usd
CY2021Q4	us-gaap	Other Sundry Liabilities Noncurrent OtherSundryLiabilitiesNoncurrent	8200000	usd
CY2022Q4	us-gaap	Other Liabilities Noncurrent OtherLiabilitiesNoncurrent	128300000	usd
CY2021Q4	us-gaap	Other Liabilities Noncurrent OtherLiabilitiesNoncurrent	90000000.0	usd
CY2022	us-gaap	Interest Expense Debt Excluding Amortization InterestExpenseDebtExcludingAmortization	8800000	usd
CY2021	us-gaap	Interest Expense Debt Excluding Amortization InterestExpenseDebtExcludingAmortization	9300000	usd
CY2020	us-gaap	Interest Expense Debt Excluding Amortization InterestExpenseDebtExcludingAmortization	9300000	usd
CY2022	us-gaap	Amortization Of Financing Costs AmortizationOfFinancingCosts	5900000	usd
CY2021	us-gaap	Amortization Of Financing Costs AmortizationOfFinancingCosts	6000000.0	usd
CY2020	us-gaap	Amortization Of Financing Costs AmortizationOfFinancingCosts	5500000	usd
CY2022	us-gaap	Interest Expense Debt InterestExpenseDebt	14700000	usd
CY2021	us-gaap	Interest Expense Debt InterestExpenseDebt	15300000	usd
CY2020	us-gaap	Interest Expense Debt InterestExpenseDebt	14800000	usd
CY2020Q2	dxcm	Payments For Repurchase Of Convertible Notes PaymentsForRepurchaseOfConvertibleNotes	282600000	usd
CY2020Q2	us-gaap	Stock Issued During Period Shares Conversion Of Convertible Securities StockIssuedDuringPeriodSharesConversionOfConvertibleSecurities	7812268	shares
CY2022	dxcm	Shares Received From Note Hedge SharesReceivedFromNoteHedge	287492	shares
CY2022Q4	us-gaap	Line Of Credit Facility Remaining Borrowing Capacity LineOfCreditFacilityRemainingBorrowingCapacity	192700000	usd
CY2022Q4	us-gaap	Deposit Assets DepositAssets	10700000	usd
CY2022Q4	us-gaap	Lessee Operating Lease Liability Payments Due Next Twelve Months LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths	26600000	usd
CY2022Q4	us-gaap	Finance Lease Liability Payments Due Next Twelve Months FinanceLeaseLiabilityPaymentsDueNextTwelveMonths	7300000	usd
CY2022Q4	us-gaap	Lessee Operating Lease Liability Payments Due Year Two LesseeOperatingLeaseLiabilityPaymentsDueYearTwo	25000000.0	usd
CY2022Q4	us-gaap	Finance Lease Liability Payments Due Year Two FinanceLeaseLiabilityPaymentsDueYearTwo	6300000	usd
CY2022Q4	us-gaap	Lessee Operating Lease Liability Payments Due Year Three LesseeOperatingLeaseLiabilityPaymentsDueYearThree	23900000	usd
CY2022Q4	us-gaap	Finance Lease Liability Payments Due Year Three FinanceLeaseLiabilityPaymentsDueYearThree	5400000	usd
CY2022Q4	us-gaap	Lessee Operating Lease Liability Payments Due Year Four LesseeOperatingLeaseLiabilityPaymentsDueYearFour	23500000	usd
CY2022Q4	us-gaap	Finance Lease Liability Payments Due Year Four FinanceLeaseLiabilityPaymentsDueYearFour	5400000	usd
CY2022Q4	us-gaap	Lessee Operating Lease Liability Payments Due Year Five LesseeOperatingLeaseLiabilityPaymentsDueYearFive	18300000	usd
CY2022Q4	us-gaap	Finance Lease Liability Payments Due Year Five FinanceLeaseLiabilityPaymentsDueYearFive	5400000	usd
CY2022Q4	us-gaap	Lessee Operating Lease Liability Payments Due After Year Five LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive	18100000	usd
CY2022Q4	us-gaap	Finance Lease Liability Payments Due After Year Five FinanceLeaseLiabilityPaymentsDueAfterYearFive	65500000	usd
CY2022Q4	us-gaap	Lessee Operating Lease Liability Payments Due LesseeOperatingLeaseLiabilityPaymentsDue	135400000	usd
CY2022Q4	us-gaap	Finance Lease Liability Payments Due FinanceLeaseLiabilityPaymentsDue	95300000	usd
CY2022Q4	us-gaap	Lessee Operating Lease Liability Undiscounted Excess Amount LesseeOperatingLeaseLiabilityUndiscountedExcessAmount	20300000	usd
CY2022Q4	us-gaap	Finance Lease Liability Undiscounted Excess Amount FinanceLeaseLiabilityUndiscountedExcessAmount	31500000	usd
CY2022Q4	us-gaap	Operating Lease Liability OperatingLeaseLiability	115100000	usd
CY2022Q4	us-gaap	Finance Lease Liability FinanceLeaseLiability	63800000	usd
CY2022Q4	us-gaap	Operating Lease Liability Current OperatingLeaseLiabilityCurrent	20500000	usd
CY2022Q4	us-gaap	Finance Lease Liability Current FinanceLeaseLiabilityCurrent	4200000	usd
CY2022Q4	us-gaap	Operating Lease Liability Noncurrent OperatingLeaseLiabilityNoncurrent	94600000	usd
CY2022Q4	us-gaap	Finance Lease Liability Noncurrent FinanceLeaseLiabilityNoncurrent	59600000	usd
CY2022	dxcm	Lessee Future Lease Cost Lease Notyet Commenced LesseeFutureLeaseCostLeaseNotyetCommenced	600000	usd
CY2022Q4	us-gaap	Asset Retirement Obligation AssetRetirementObligation	11100000	usd
CY2021Q4	us-gaap	Asset Retirement Obligation AssetRetirementObligation	7400000	usd
CY2022	us-gaap	Variable Lease Cost VariableLeaseCost	8000000.0	usd
CY2022	us-gaap	Finance Lease Right Of Use Asset Amortization FinanceLeaseRightOfUseAssetAmortization	5600000	usd
CY2021	us-gaap	Finance Lease Right Of Use Asset Amortization FinanceLeaseRightOfUseAssetAmortization	4100000	usd
CY2020	us-gaap	Finance Lease Right Of Use Asset Amortization FinanceLeaseRightOfUseAssetAmortization	2000000.0	usd
CY2022	us-gaap	Finance Lease Interest Expense FinanceLeaseInterestExpense	3300000	usd
CY2021	us-gaap	Finance Lease Interest Expense FinanceLeaseInterestExpense	3000000.0	usd
CY2020	us-gaap	Finance Lease Interest Expense FinanceLeaseInterestExpense	1900000	usd
CY2022	us-gaap	Operating Lease Cost OperatingLeaseCost	22600000	usd
CY2021	us-gaap	Operating Lease Cost OperatingLeaseCost	23300000	usd
CY2020	us-gaap	Operating Lease Cost OperatingLeaseCost	18400000	usd
CY2022	us-gaap	Operating Lease Impairment Loss OperatingLeaseImpairmentLoss	6300000	usd
CY2021	us-gaap	Operating Lease Impairment Loss OperatingLeaseImpairmentLoss	0	usd
CY2020	us-gaap	Operating Lease Impairment Loss OperatingLeaseImpairmentLoss	0	usd
CY2022	us-gaap	Short Term Lease Cost ShortTermLeaseCost	3500000	usd
CY2021	us-gaap	Short Term Lease Cost ShortTermLeaseCost	2300000	usd
CY2020	us-gaap	Short Term Lease Cost ShortTermLeaseCost	1300000	usd
CY2021	us-gaap	Variable Lease Cost VariableLeaseCost	6000000.0	usd
CY2020	us-gaap	Variable Lease Cost VariableLeaseCost	4200000	usd
CY2022	us-gaap	Lease Cost LeaseCost	49300000	usd
CY2021	us-gaap	Lease Cost LeaseCost	38700000	usd
CY2020	us-gaap	Lease Cost LeaseCost	27800000	usd
CY2022	us-gaap	Impairment Of Long Lived Assets Held For Use ImpairmentOfLongLivedAssetsHeldForUse	23000000	usd
CY2022Q4	dxcm	Impaired Long Lived Assets Fair Value ImpairedLongLivedAssetsFairValue	2500000	usd
CY2022	us-gaap	Operating Lease Payments OperatingLeasePayments	26000000.0	usd
CY2021	us-gaap	Operating Lease Payments OperatingLeasePayments	23300000	usd
CY2020	us-gaap	Operating Lease Payments OperatingLeasePayments	18300000	usd
CY2022	us-gaap	Finance Lease Interest Payment On Liability FinanceLeaseInterestPaymentOnLiability	3100000	usd
CY2021	us-gaap	Finance Lease Interest Payment On Liability FinanceLeaseInterestPaymentOnLiability	1900000	usd
CY2020	us-gaap	Finance Lease Interest Payment On Liability FinanceLeaseInterestPaymentOnLiability	700000	usd
CY2022	us-gaap	Finance Lease Principal Payments FinanceLeasePrincipalPayments	15500000	usd
CY2021	us-gaap	Finance Lease Principal Payments FinanceLeasePrincipalPayments	9900000	usd
CY2020	us-gaap	Finance Lease Principal Payments FinanceLeasePrincipalPayments	8500000	usd
CY2022	us-gaap	Right Of Use Asset Obtained In Exchange For Operating Lease Liability RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability	15600000	usd
CY2021	us-gaap	Right Of Use Asset Obtained In Exchange For Operating Lease Liability RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability	13100000	usd
CY2020	us-gaap	Right Of Use Asset Obtained In Exchange For Operating Lease Liability RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability	33500000	usd
CY2022	us-gaap	Right Of Use Asset Obtained In Exchange For Finance Lease Liability RightOfUseAssetObtainedInExchangeForFinanceLeaseLiability	16100000	usd
CY2021	us-gaap	Right Of Use Asset Obtained In Exchange For Finance Lease Liability RightOfUseAssetObtainedInExchangeForFinanceLeaseLiability	6400000	usd
CY2020	us-gaap	Right Of Use Asset Obtained In Exchange For Finance Lease Liability RightOfUseAssetObtainedInExchangeForFinanceLeaseLiability	41700000	usd
CY2022Q4	us-gaap	Operating Lease Weighted Average Remaining Lease Term1 OperatingLeaseWeightedAverageRemainingLeaseTerm1	P5Y6M
CY2021Q4	us-gaap	Operating Lease Weighted Average Remaining Lease Term1 OperatingLeaseWeightedAverageRemainingLeaseTerm1	P5Y6M
CY2020Q4	us-gaap	Operating Lease Weighted Average Remaining Lease Term1 OperatingLeaseWeightedAverageRemainingLeaseTerm1	P6Y1M6D
CY2022Q4	us-gaap	Finance Lease Weighted Average Remaining Lease Term1 FinanceLeaseWeightedAverageRemainingLeaseTerm1	P15Y2M12D
CY2021Q4	us-gaap	Finance Lease Weighted Average Remaining Lease Term1 FinanceLeaseWeightedAverageRemainingLeaseTerm1	P15Y10M24D
CY2020Q4	us-gaap	Finance Lease Weighted Average Remaining Lease Term1 FinanceLeaseWeightedAverageRemainingLeaseTerm1	P23Y3M18D
CY2022Q4	us-gaap	Operating Lease Weighted Average Discount Rate Percent OperatingLeaseWeightedAverageDiscountRatePercent	0.060
CY2021Q4	us-gaap	Operating Lease Weighted Average Discount Rate Percent OperatingLeaseWeightedAverageDiscountRatePercent	0.050
CY2020Q4	us-gaap	Operating Lease Weighted Average Discount Rate Percent OperatingLeaseWeightedAverageDiscountRatePercent	0.050
CY2022Q4	us-gaap	Finance Lease Weighted Average Discount Rate Percent FinanceLeaseWeightedAverageDiscountRatePercent	0.051
CY2021Q4	us-gaap	Finance Lease Weighted Average Discount Rate Percent FinanceLeaseWeightedAverageDiscountRatePercent	0.051
CY2020Q4	us-gaap	Finance Lease Weighted Average Discount Rate Percent FinanceLeaseWeightedAverageDiscountRatePercent	0.050
CY2022	dxcm	Lessee Operating Leases Lease Cost Amortization LesseeOperatingLeasesLeaseCostAmortization	16400000	usd
CY2021	dxcm	Lessee Operating Leases Lease Cost Amortization LesseeOperatingLeasesLeaseCostAmortization	18000000.0	usd
CY2020	dxcm	Lessee Operating Leases Lease Cost Amortization LesseeOperatingLeasesLeaseCostAmortization	12400000	usd
CY2022Q4	us-gaap	Recorded Unconditional Purchase Obligation Due Within One Year RecordedUnconditionalPurchaseObligationDueWithinOneYear	442700000	usd
CY2021Q4	us-gaap	Recorded Unconditional Purchase Obligation Due Within One Year RecordedUnconditionalPurchaseObligationDueWithinOneYear	324100000	usd
CY2022	dxcm	Recorded Unconditional Purchase Obligation Due Within One Year Maximum Term RecordedUnconditionalPurchaseObligationDueWithinOneYearMaximumTerm	P1Y
CY2022	us-gaap	Income Loss From Continuing Operations Before Income Taxes Domestic IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic	463500000	usd
CY2021	us-gaap	Income Loss From Continuing Operations Before Income Taxes Domestic IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic	318200000	usd
CY2020	us-gaap	Income Loss From Continuing Operations Before Income Taxes Domestic IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic	343600000	usd
CY2022	us-gaap	Income Loss From Continuing Operations Before Income Taxes Foreign IncomeLossFromContinuingOperationsBeforeIncomeTaxesForeign	-72700000	usd
CY2021	us-gaap	Income Loss From Continuing Operations Before Income Taxes Foreign IncomeLossFromContinuingOperationsBeforeIncomeTaxesForeign	-61400000	usd
CY2020	us-gaap	Income Loss From Continuing Operations Before Income Taxes Foreign IncomeLossFromContinuingOperationsBeforeIncomeTaxesForeign	-45700000	usd
CY2022	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	390800000	usd
CY2021	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	256800000	usd
CY2020	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	297900000	usd
CY2022	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	32600000	usd
CY2021	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	5700000	usd
CY2020	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	0	usd
CY2022	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	26100000	usd
CY2021	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	8300000	usd
CY2020	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	6100000	usd
CY2022	us-gaap	Current Foreign Tax Expense Benefit CurrentForeignTaxExpenseBenefit	12500000	usd
CY2021	us-gaap	Current Foreign Tax Expense Benefit CurrentForeignTaxExpenseBenefit	10100000	usd
CY2020	us-gaap	Current Foreign Tax Expense Benefit CurrentForeignTaxExpenseBenefit	2600000	usd
CY2022	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	71200000	usd
CY2021	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	24100000	usd
CY2020	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	8700000	usd
CY2022	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	-4300000	usd
CY2021	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	23000000.0	usd
CY2020	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	-182900000	usd
CY2022	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	-17600000	usd
CY2021	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	-200000	usd
CY2020	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	-50500000	usd
CY2022	us-gaap	Deferred Foreign Income Tax Expense Benefit DeferredForeignIncomeTaxExpenseBenefit	300000	usd
CY2021	us-gaap	Deferred Foreign Income Tax Expense Benefit DeferredForeignIncomeTaxExpenseBenefit	-7000000.0	usd
CY2020	us-gaap	Deferred Foreign Income Tax Expense Benefit DeferredForeignIncomeTaxExpenseBenefit	-27100000	usd
CY2022	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	-21600000	usd
CY2021	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	15800000	usd
CY2020	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	-260500000	usd
CY2022	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	49600000	usd
CY2021	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	39900000	usd
CY2020	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	-251800000	usd
CY2022	dxcm	Unused Expired Federal Income Tax Credits UnusedExpiredFederalIncomeTaxCredits	1700000	usd
CY2022Q4	us-gaap	Deferred Tax Assets Operating Loss Carryforwards DeferredTaxAssetsOperatingLossCarryforwards	46400000	usd
CY2021Q4	us-gaap	Deferred Tax Assets Operating Loss Carryforwards DeferredTaxAssetsOperatingLossCarryforwards	53000000.0	usd
CY2022Q4	us-gaap	Deferred Tax Assets In Process Research And Development DeferredTaxAssetsInProcessResearchAndDevelopment	211900000	usd
CY2021Q4	us-gaap	Deferred Tax Assets In Process Research And Development DeferredTaxAssetsInProcessResearchAndDevelopment	49300000	usd
CY2022Q4	us-gaap	Deferred Tax Assets Tax Credit Carryforwards DeferredTaxAssetsTaxCreditCarryforwards	61100000	usd
CY2021Q4	us-gaap	Deferred Tax Assets Tax Credit Carryforwards DeferredTaxAssetsTaxCreditCarryforwards	105500000	usd
CY2022Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Share Based Compensation Cost DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsShareBasedCompensationCost	16800000	usd
CY2021Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Share Based Compensation Cost DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsShareBasedCompensationCost	13300000	usd
CY2022Q4	dxcm	Deferred Tax Assets Fixed Assets And Intangible Assets DeferredTaxAssetsFixedAssetsAndIntangibleAssets	34400000	usd
CY2021Q4	dxcm	Deferred Tax Assets Fixed Assets And Intangible Assets DeferredTaxAssetsFixedAssetsAndIntangibleAssets	26400000	usd
CY2022Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Accrued Liabilities DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAccruedLiabilities	105300000	usd
CY2021Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Accrued Liabilities DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAccruedLiabilities	105500000	usd
CY2022Q4	dxcm	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Collaborative Agreement Milestone Accrual DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsCollaborativeAgreementMilestoneAccrual	0	usd
CY2021Q4	dxcm	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Collaborative Agreement Milestone Accrual DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsCollaborativeAgreementMilestoneAccrual	21900000	usd
CY2022Q4	dxcm	Deferred Tax Assets Convertible Debt DeferredTaxAssetsConvertibleDebt	-9300000	usd
CY2021Q4	dxcm	Deferred Tax Assets Convertible Debt DeferredTaxAssetsConvertibleDebt	-21600000	usd
CY2022Q4	us-gaap	Deferred Tax Assets Other DeferredTaxAssetsOther	0	usd
CY2021Q4	us-gaap	Deferred Tax Assets Other DeferredTaxAssetsOther	500000	usd
CY2022Q4	us-gaap	Deferred Tax Assets Gross DeferredTaxAssetsGross	485200000	usd
CY2021Q4	us-gaap	Deferred Tax Assets Gross DeferredTaxAssetsGross	397000000.0	usd
CY2022Q4	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	78700000	usd
CY2021Q4	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	69900000	usd
CY2022Q4	us-gaap	Deferred Tax Assets Net DeferredTaxAssetsNet	406500000	usd
CY2021Q4	us-gaap	Deferred Tax Assets Net DeferredTaxAssetsNet	327100000	usd
CY2022Q4	dxcm	Deferred Tax Liabilities Fixed Assets And Intangible Assets DeferredTaxLiabilitiesFixedAssetsAndIntangibleAssets	69900000	usd
CY2021Q4	dxcm	Deferred Tax Liabilities Fixed Assets And Intangible Assets DeferredTaxLiabilitiesFixedAssetsAndIntangibleAssets	42500000	usd
CY2022Q4	us-gaap	Deferred Tax Liabilities Other DeferredTaxLiabilitiesOther	300000	usd
CY2021Q4	us-gaap	Deferred Tax Liabilities Other DeferredTaxLiabilitiesOther	0	usd
CY2022Q4	us-gaap	Deferred Income Tax Liabilities DeferredIncomeTaxLiabilities	70200000	usd
CY2021Q4	us-gaap	Deferred Income Tax Liabilities DeferredIncomeTaxLiabilities	42500000	usd
CY2022Q4	us-gaap	Deferred Tax Assets Liabilities Net DeferredTaxAssetsLiabilitiesNet	336300000	usd
CY2021Q4	us-gaap	Deferred Tax Assets Liabilities Net DeferredTaxAssetsLiabilitiesNet	284600000	usd
CY2022	us-gaap	Valuation Allowance Deferred Tax Asset Change In Amount ValuationAllowanceDeferredTaxAssetChangeInAmount	8900000	usd
CY2022	us-gaap	Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate	82100000	usd
CY2021	us-gaap	Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate	53900000	usd
CY2020	us-gaap	Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate	62600000	usd
CY2022	us-gaap	Income Tax Reconciliation State And Local Income Taxes IncomeTaxReconciliationStateAndLocalIncomeTaxes	5400000	usd
CY2021	us-gaap	Income Tax Reconciliation State And Local Income Taxes IncomeTaxReconciliationStateAndLocalIncomeTaxes	8900000	usd
CY2020	us-gaap	Income Tax Reconciliation State And Local Income Taxes IncomeTaxReconciliationStateAndLocalIncomeTaxes	5300000	usd
CY2022	dxcm	Effective Income Tax Reconciliation Permanent Items EffectiveIncomeTaxReconciliationPermanentItems	600000	usd
CY2021	dxcm	Effective Income Tax Reconciliation Permanent Items EffectiveIncomeTaxReconciliationPermanentItems	5200000	usd
CY2020	dxcm	Effective Income Tax Reconciliation Permanent Items EffectiveIncomeTaxReconciliationPermanentItems	2600000	usd
CY2022	us-gaap	Income Tax Reconciliation Tax Credits Research IncomeTaxReconciliationTaxCreditsResearch	23300000	usd
CY2021	us-gaap	Income Tax Reconciliation Tax Credits Research IncomeTaxReconciliationTaxCreditsResearch	28900000	usd
CY2020	us-gaap	Income Tax Reconciliation Tax Credits Research IncomeTaxReconciliationTaxCreditsResearch	24400000	usd
CY2022	us-gaap	Income Tax Reconciliation Tax Credits Foreign IncomeTaxReconciliationTaxCreditsForeign	0	usd
CY2021	us-gaap	Income Tax Reconciliation Tax Credits Foreign IncomeTaxReconciliationTaxCreditsForeign	3700000	usd
CY2020	us-gaap	Income Tax Reconciliation Tax Credits Foreign IncomeTaxReconciliationTaxCreditsForeign	0	usd
CY2022	us-gaap	Income Tax Reconciliation Foreign Income Tax Rate Differential IncomeTaxReconciliationForeignIncomeTaxRateDifferential	27700000	usd
CY2021	us-gaap	Income Tax Reconciliation Foreign Income Tax Rate Differential IncomeTaxReconciliationForeignIncomeTaxRateDifferential	20900000	usd
CY2020	us-gaap	Income Tax Reconciliation Foreign Income Tax Rate Differential IncomeTaxReconciliationForeignIncomeTaxRateDifferential	9800000	usd
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CY2020	us-gaap	Income Tax Reconciliation Nondeductible Expense Share Based Compensation Cost IncomeTaxReconciliationNondeductibleExpenseShareBasedCompensationCost	-28700000	usd
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CY2021	dxcm	Effective Income Tax Rate Reconciliation Collaboration Agreement Milestone Share Based Payment EffectiveIncomeTaxRateReconciliationCollaborationAgreementMilestoneShareBasedPayment	0	usd
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CY2021	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	2448500000	usd
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CY2019Q4	us-gaap	Valuation Allowances And Reserves Balance ValuationAllowancesAndReservesBalance	5800000	usd
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CY2020	dxcm	Sec Schedule1209 Valuation Allowancesand Reserves Deduction Writeoffsand Adjustments SECSchedule1209ValuationAllowancesandReservesDeductionWriteoffsandAdjustments	2100000	usd
CY2020	us-gaap	Valuation Allowances And Reserves Recoveries ValuationAllowancesAndReservesRecoveries	300000	usd
CY2020Q4	us-gaap	Valuation Allowances And Reserves Balance ValuationAllowancesAndReservesBalance	7200000	usd
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CY2021	dxcm	Sec Schedule1209 Valuation Allowancesand Reserves Deduction Writeoffsand Adjustments SECSchedule1209ValuationAllowancesandReservesDeductionWriteoffsandAdjustments	500000	usd
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CY2021Q4	us-gaap	Valuation Allowances And Reserves Balance ValuationAllowancesAndReservesBalance	5400000	usd
CY2021Q4	us-gaap	Valuation Allowances And Reserves Balance ValuationAllowancesAndReservesBalance	5400000	usd
CY2022	us-gaap	Valuation Allowances And Reserves Charged To Cost And Expense ValuationAllowancesAndReservesChargedToCostAndExpense	2400000	usd
CY2022	dxcm	Sec Schedule1209 Valuation Allowancesand Reserves Deduction Writeoffsand Adjustments SECSchedule1209ValuationAllowancesandReservesDeductionWriteoffsandAdjustments	500000	usd
CY2022	us-gaap	Valuation Allowances And Reserves Recoveries ValuationAllowancesAndReservesRecoveries	0	usd
CY2022Q4	us-gaap	Valuation Allowances And Reserves Balance ValuationAllowancesAndReservesBalance	7300000	usd

Files In Submission

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$DXCM
DEXCOM INC Stock $dxcm

2023 Q1 Form 10-K Financial Statement

#000109355723000024 Filed on February 09, 2023

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$DXCM DEXCOM INC Stock $dxcm

2023 Q1 Form 10-K Financial Statement

#000109355723000024 Filed on February 09, 2023

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$DXCM
DEXCOM INC Stock $dxcm