$DXCM
DEXCOM INC Stock $dxcm

$dxcm Overview Financials Valuation SEC Filings Company Website

2024 Q1 Form 10-K Financial Statement

#000109355724000021 Filed on February 08, 2024

Income Statement

Concept	2024 Q1	2023 Q4	2023
Revenue	$921.0M	$1.035B	$3.622B
YoY Change	24.21%	26.9%	24.49%
Cost Of Revenue	$359.1M	$361.3M	$1.333B
YoY Change	28.76%	38.96%	29.87%
Gross Profit	$561.9M	$673.2M	$2.289B
YoY Change	21.47%	21.25%	21.55%
Gross Profit Margin	61.01%	65.07%	63.19%
Selling, General & Admin	$319.3M	$308.8M	$1.185B
YoY Change	8.38%	3.69%	18.52%
% of Gross Profit	56.83%	45.87%	51.79%
Research & Development	$141.5M	$136.1M	$505.8M
YoY Change	18.91%	17.02%	4.46%
% of Gross Profit	25.18%	20.22%	22.1%
Depreciation & Amortization	$52.50M	$52.50M	$186.0M
YoY Change	26.2%	44.63%	19.31%
% of Gross Profit	9.34%	7.8%	8.13%
Operating Expenses	$460.8M	$439.7M	$1.691B
YoY Change	10.93%	5.72%	13.36%
Operating Profit	$101.1M	$233.5M	$597.7M
YoY Change	114.19%	67.62%	52.79%
Interest Expense	$4.600M	$29.80M	$20.30M
YoY Change	0.0%	282.05%	9.14%
% of Operating Profit	4.55%	12.76%	3.4%
Other Income/Expense, Net	$31.40M	-$500.0K	$112.7M
YoY Change	43.38%		526.11%
Pretax Income	$132.5M	$246.2M	$710.4M
YoY Change	105.43%	84.83%	81.78%
Income Tax	-$13.90M	-$10.10M	$168.9M
% Of Pretax Income	-10.49%	-4.1%	23.78%
Net Earnings	$146.4M	$256.3M	$541.5M
YoY Change	201.23%	179.19%	58.7%
Net Earnings / Revenue	15.9%	24.78%	14.95%
Basic Earnings Per Share	$0.38		$1.40
Diluted Earnings Per Share	$0.36	$0.61	$1.30
COMMON SHARES
Basic Shares Outstanding	385.5M shares	386.4M shares	386.0M shares
Diluted Shares Outstanding	416.7M shares		425.5M shares

Balance Sheet

Concept	2024 Q1	2023 Q4	2023
SHORT-TERM ASSETS
Cash & Short-Term Investments	$2.621B	$2.726B	$2.724B
YoY Change	2.26%	11.17%	10.91%
Cash & Equivalents	$851.2M	$566.3M	$566.3M
Short-Term Investments	$1.770B	$2.160B	$2.158B
Other Short-Term Assets	$40.40M	$49.30M	$154.7M
YoY Change	-6.48%	33.24%	-19.68%
Inventory	$589.1M	$559.6M	$559.6M
Prepaid Expenses	$59.40M	$58.70M
Receivables	$978.6M	$973.9M	$973.9M
Other Receivables	$6.200M	$13.60M	$13.60M
Total Short-Term Assets	$4.621B	$4.426B	$4.426B
YoY Change	22.65%	20.64%	20.64%
LONG-TERM ASSETS
Property, Plant & Equipment	$1.177B	$1.185B	$1.185B
YoY Change	9.4%	4.31%	4.31%
Goodwill	$23.20M	$25.20M
YoY Change	-9.73%	-1.95%
Intangibles	$123.3M	$134.5M
YoY Change	-24.63%	-22.39%
Long-Term Investments
YoY Change
Other Assets	$77.70M	$75.00M	$494.4M
YoY Change	37.28%	59.24%	27.32%
Total Long-Term Assets	$1.862B	$1.839B	$1.839B
YoY Change	6.46%	6.72%	6.72%
TOTAL ASSETS
Total Short-Term Assets	$4.621B	$4.426B	$4.426B
Total Long-Term Assets	$1.862B	$1.839B	$1.839B
Total Assets	$6.482B	$6.265B	$6.265B
YoY Change	17.52%	16.19%	16.19%
SHORT-TERM LIABILITIES
YoY Change
Accounts Payable	$269.7M	$276.4M	$276.4M
YoY Change	1.31%	16.18%	16.18%
Accrued Expenses	$1.296B	$1.254B	$1.249B
YoY Change	58.85%	53.13%	53.35%
Deferred Revenue	$16.40M	$18.40M
YoY Change	70.83%	82.18%
Short-Term Debt	$0.00	$0.00	$0.00
YoY Change
Long-Term Debt Due		$0.00	$4.700M
YoY Change		-100.0%	-99.39%
Total Short-Term Liabilities	$1.594B	$1.556B	$1.556B
YoY Change	-14.52%	-15.4%	-15.4%
LONG-TERM LIABILITIES
Long-Term Debt	$2.494B	$2.493B	$2.493B
YoY Change	98.27%	98.27%	98.27%
Other Long-Term Liabilities	$129.4M	$125.6M	$147.1M
YoY Change	-0.23%	-2.1%	-7.13%
Total Long-Term Liabilities	$129.4M	$125.6M	$2.640B
YoY Change	-0.23%	-2.1%	86.47%
TOTAL LIABILITIES
Total Short-Term Liabilities	$1.594B	$1.556B	$1.556B
Total Long-Term Liabilities	$129.4M	$125.6M	$2.640B
Total Liabilities	$4.235B	$4.196B	$4.196B
YoY Change	29.01%	28.71%	28.71%
SHAREHOLDERS EQUITY
Retained Earnings	$1.168B	$1.021B
YoY Change	120.96%	112.84%
Common Stock	$2.511B	$3.515B
YoY Change	8.89%	55.64%
Preferred Stock
YoY Change
Treasury Stock (at cost)
YoY Change
Treasury Stock Shares
Shareholders Equity	$2.247B	$2.069B	$2.069B
YoY Change
Total Liabilities & Shareholders Equity	$6.482B	$6.265B	$6.265B
YoY Change	17.52%	16.19%	16.19%

Cashflow Statement

Concept	2024 Q1	2023 Q4	2023
OPERATING ACTIVITIES
Net Income	$146.4M	$256.3M	$541.5M
YoY Change	201.23%	179.19%	58.7%
Depreciation, Depletion And Amortization	$52.50M	$52.50M	$186.0M
YoY Change	26.2%	44.63%	19.31%
Cash From Operating Activities	$209.2M	$133.6M	$748.5M
YoY Change	34.62%	0.83%	11.8%
INVESTING ACTIVITIES
Capital Expenditures	$56.90M	$52.50M	$236.6M
YoY Change	-23.83%	-17.32%	-35.14%
Acquisitions			$0.00
YoY Change			-100.0%
Other Investing Activities	-$2.300M	$467.4M	$17.60M
YoY Change		-457.89%	23.08%
Cash From Investing Activities	$74.80M	$414.9M	-$507.2M
YoY Change	-140.06%	-313.76%	-2.74%
FINANCING ACTIVITIES
Cash Dividend Paid
YoY Change
Common Stock Issuance & Retirement, Net			$662.1M
YoY Change			23.71%
Debt Paid & Issued, Net
YoY Change
Cash From Financing Activities	$4.700M	-631.9M	-$318.6M
YoY Change	-58.04%	63090.0%	-42.33%
NET CHANGE
Cash From Operating Activities	$209.2M	133.6M	$748.5M
Cash From Investing Activities	$74.80M	414.9M	-$507.2M
Cash From Financing Activities	$4.700M	-631.9M	-$318.6M
Net Change In Cash	$284.9M	-83.40M	-$75.80M
YoY Change	-1599.47%	33.23%	-81.53%
FREE CASH FLOW
Cash From Operating Activities	$209.2M	$133.6M	$748.5M
Capital Expenditures	$56.90M	$52.50M	$236.6M
Free Cash Flow	$152.3M	$81.10M	$511.9M
YoY Change	88.72%	17.54%	68.0%

Facts In Submission

Frame	Concept Type	Concept / XBRL Key	Value	Unit
CY2023	dei	Amendment Flag AmendmentFlag	false
CY2023	dei	Document Fiscal Year Focus DocumentFiscalYearFocus	2023
CY2023	dei	Document Fiscal Period Focus DocumentFiscalPeriodFocus	FY
CY2023	dei	Entity Central Index Key EntityCentralIndexKey	0001093557
CY2023Q4	us-gaap	Finance Lease Liability Current Statement Of Financial Position Extensible List FinanceLeaseLiabilityCurrentStatementOfFinancialPositionExtensibleList	http://fasb.org/us-gaap/2023#PropertyPlantAndEquipmentAndFinanceLeaseRightOfUseAssetAfterAccumulatedDepreciationAndAmortization
CY2022Q4	us-gaap	Finance Lease Liability Noncurrent Statement Of Financial Position Extensible List FinanceLeaseLiabilityNoncurrentStatementOfFinancialPositionExtensibleList	http://fasb.org/us-gaap/2023#OtherLiabilitiesNoncurrent
CY2023Q4	us-gaap	Finance Lease Liability Noncurrent Statement Of Financial Position Extensible List FinanceLeaseLiabilityNoncurrentStatementOfFinancialPositionExtensibleList	http://fasb.org/us-gaap/2023#OtherLiabilitiesNoncurrent
CY2023	us-gaap	Impairment Long Lived Asset Held For Use Statement Of Income Or Comprehensive Income Extensible Enumeration ImpairmentLongLivedAssetHeldForUseStatementOfIncomeOrComprehensiveIncomeExtensibleEnumeration	http://fasb.org/us-gaap/2023#SellingGeneralAndAdministrativeExpense
CY2023	dei	Document Annual Report DocumentAnnualReport	true
CY2023	dei	Document Period End Date DocumentPeriodEndDate	2023-12-31
CY2023	dei	Current Fiscal Year End Date CurrentFiscalYearEndDate	--12-31
CY2023	dei	Document Transition Report DocumentTransitionReport	false
CY2023	dei	Entity File Number EntityFileNumber	000-51222
CY2023	dei	Entity Registrant Name EntityRegistrantName	DEXCOM, INC.
CY2023	dei	Entity Incorporation State Country Code EntityIncorporationStateCountryCode	DE
CY2023	dei	Entity Tax Identification Number EntityTaxIdentificationNumber	33-0857544
CY2023	dei	Entity Address Address Line1 EntityAddressAddressLine1	6340 Sequence Drive
CY2023	dei	Entity Address City Or Town EntityAddressCityOrTown	San Diego
CY2023	dei	Entity Address State Or Province EntityAddressStateOrProvince	CA
CY2023	dei	Entity Address Postal Zip Code EntityAddressPostalZipCode	92121
CY2023	dei	City Area Code CityAreaCode	858
CY2023	dei	Local Phone Number LocalPhoneNumber	200-0200
CY2023	dei	Security12b Title Security12bTitle	Common Stock, $0.001 Par Value Per Share
CY2023	dei	Trading Symbol TradingSymbol	DXCM
CY2023	dei	Security Exchange Name SecurityExchangeName	NASDAQ
CY2023	dei	Entity Well Known Seasoned Issuer EntityWellKnownSeasonedIssuer	Yes
CY2023	dei	Entity Voluntary Filers EntityVoluntaryFilers	No
CY2023	dei	Entity Current Reporting Status EntityCurrentReportingStatus	Yes
CY2023	dei	Entity Interactive Data Current EntityInteractiveDataCurrent	Yes
CY2023	dei	Entity Filer Category EntityFilerCategory	Large Accelerated Filer
CY2023	dei	Entity Small Business EntitySmallBusiness	false
CY2023	dei	Entity Emerging Growth Company EntityEmergingGrowthCompany	false
CY2023	dei	Icfr Auditor Attestation Flag IcfrAuditorAttestationFlag	true
CY2023	dei	Document Fin Stmt Error Correction Flag DocumentFinStmtErrorCorrectionFlag	false
CY2023	dei	Entity Shell Company EntityShellCompany	false
CY2023Q2	dei	Entity Public Float EntityPublicFloat	49400000000	usd
CY2024Q1	dei	Entity Common Stock Shares Outstanding EntityCommonStockSharesOutstanding	385515421	shares
CY2023	dei	Auditor Firm AuditorFirmId	42
CY2023Q4	ecd	Non Rule10b51 Arr Adopted Flag NonRule10b51ArrAdoptedFlag	false
CY2023Q4	ecd	Non Rule10b51 Arr Trmntd Flag NonRule10b51ArrTrmntdFlag	false
CY2023	dei	Auditor Name AuditorName	Ernst & Young LLP
CY2023	dei	Auditor Location AuditorLocation	San Diego, California
CY2023Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	566300000	usd
CY2022Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	642300000	usd
CY2023Q4	dxcm	Debt Securities Available For Sale And Equity Securities DebtSecuritiesAvailableForSaleAndEquitySecurities	2157800000	usd
CY2022Q4	dxcm	Debt Securities Available For Sale And Equity Securities DebtSecuritiesAvailableForSaleAndEquitySecurities	1813900000	usd
CY2023Q4	us-gaap	Accounts Receivable Net Current AccountsReceivableNetCurrent	973900000	usd
CY2022Q4	us-gaap	Accounts Receivable Net Current AccountsReceivableNetCurrent	713300000	usd
CY2023Q4	us-gaap	Inventory Net InventoryNet	559600000	usd
CY2022Q4	us-gaap	Inventory Net InventoryNet	306700000	usd
CY2023Q4	us-gaap	Prepaid Expense And Other Assets Current PrepaidExpenseAndOtherAssetsCurrent	168300000	usd
CY2022Q4	us-gaap	Prepaid Expense And Other Assets Current PrepaidExpenseAndOtherAssetsCurrent	192600000	usd
CY2023Q4	us-gaap	Assets Current AssetsCurrent	4425900000	usd
CY2022Q4	us-gaap	Assets Current AssetsCurrent	3668800000	usd
CY2023Q4	us-gaap	Property Plant And Equipment And Finance Lease Right Of Use Asset After Accumulated Depreciation And Amortization PropertyPlantAndEquipmentAndFinanceLeaseRightOfUseAssetAfterAccumulatedDepreciationAndAmortization	1113100000	usd
CY2022Q4	us-gaap	Property Plant And Equipment And Finance Lease Right Of Use Asset After Accumulated Depreciation And Amortization PropertyPlantAndEquipmentAndFinanceLeaseRightOfUseAssetAfterAccumulatedDepreciationAndAmortization	1055600000	usd
CY2023Q4	us-gaap	Operating Lease Right Of Use Asset OperatingLeaseRightOfUseAsset	71400000	usd
CY2022Q4	us-gaap	Operating Lease Right Of Use Asset OperatingLeaseRightOfUseAsset	80000000.0	usd
CY2023Q4	us-gaap	Goodwill Goodwill	25200000	usd
CY2022Q4	us-gaap	Goodwill Goodwill	25700000	usd
CY2023Q4	us-gaap	Intangible Assets Net Excluding Goodwill IntangibleAssetsNetExcludingGoodwill	134500000	usd
CY2022Q4	us-gaap	Intangible Assets Net Excluding Goodwill IntangibleAssetsNetExcludingGoodwill	173300000	usd
CY2023Q4	us-gaap	Deferred Income Tax Assets Net DeferredIncomeTaxAssetsNet	419400000	usd
CY2022Q4	us-gaap	Deferred Income Tax Assets Net DeferredIncomeTaxAssetsNet	341200000	usd
CY2023Q4	us-gaap	Other Assets Noncurrent OtherAssetsNoncurrent	75000000.0	usd
CY2022Q4	us-gaap	Other Assets Noncurrent OtherAssetsNoncurrent	47100000	usd
CY2023Q4	us-gaap	Assets Assets	6264500000	usd
CY2022Q4	us-gaap	Assets Assets	5391700000	usd
CY2023Q4	us-gaap	Accounts Payable And Other Accrued Liabilities Current AccountsPayableAndOtherAccruedLiabilitiesCurrent	1345500000	usd
CY2022Q4	us-gaap	Accounts Payable And Other Accrued Liabilities Current AccountsPayableAndOtherAccruedLiabilitiesCurrent	901800000	usd
CY2023Q4	us-gaap	Employee Related Liabilities Current EmployeeRelatedLiabilitiesCurrent	171000000.0	usd
CY2022Q4	us-gaap	Employee Related Liabilities Current EmployeeRelatedLiabilitiesCurrent	134300000	usd
CY2023Q4	us-gaap	Convertible Notes Payable Current ConvertibleNotesPayableCurrent	0	usd
CY2022Q4	us-gaap	Convertible Notes Payable Current ConvertibleNotesPayableCurrent	772600000	usd
CY2023Q4	us-gaap	Operating Lease Liability Current OperatingLeaseLiabilityCurrent	21100000	usd
CY2022Q4	us-gaap	Operating Lease Liability Current OperatingLeaseLiabilityCurrent	20500000	usd
CY2023Q4	us-gaap	Contract With Customer Liability Current ContractWithCustomerLiabilityCurrent	18400000	usd
CY2022Q4	us-gaap	Contract With Customer Liability Current ContractWithCustomerLiabilityCurrent	10100000	usd
CY2023Q4	us-gaap	Liabilities Current LiabilitiesCurrent	1556000000	usd
CY2022Q4	us-gaap	Liabilities Current LiabilitiesCurrent	1839300000	usd
CY2023Q4	us-gaap	Convertible Long Term Notes Payable ConvertibleLongTermNotesPayable	2434200000	usd
CY2022Q4	us-gaap	Convertible Long Term Notes Payable ConvertibleLongTermNotesPayable	1197700000	usd
CY2023Q4	us-gaap	Operating Lease Liability Noncurrent OperatingLeaseLiabilityNoncurrent	80100000	usd
CY2022Q4	us-gaap	Operating Lease Liability Noncurrent OperatingLeaseLiabilityNoncurrent	94600000	usd
CY2023Q4	us-gaap	Other Liabilities Noncurrent OtherLiabilitiesNoncurrent	125600000	usd
CY2022Q4	us-gaap	Other Liabilities Noncurrent OtherLiabilitiesNoncurrent	128300000	usd
CY2023Q4	us-gaap	Liabilities Liabilities	4195900000	usd
CY2022Q4	us-gaap	Liabilities Liabilities	3259900000	usd
CY2023Q4	us-gaap	Commitments And Contingencies CommitmentsAndContingencies		usd
CY2022Q4	us-gaap	Commitments And Contingencies CommitmentsAndContingencies		usd
CY2022Q4	us-gaap	Preferred Stock Par Or Stated Value Per Share PreferredStockParOrStatedValuePerShare	0.001
CY2023Q4	us-gaap	Preferred Stock Par Or Stated Value Per Share PreferredStockParOrStatedValuePerShare	0.001
CY2023Q4	us-gaap	Preferred Stock Shares Authorized PreferredStockSharesAuthorized	5000000	shares
CY2022Q4	us-gaap	Preferred Stock Shares Authorized PreferredStockSharesAuthorized	5000000	shares
CY2023Q4	us-gaap	Preferred Stock Shares Outstanding PreferredStockSharesOutstanding	0	shares
CY2022Q4	us-gaap	Preferred Stock Shares Issued PreferredStockSharesIssued	0	shares
CY2023Q4	us-gaap	Preferred Stock Shares Issued PreferredStockSharesIssued	0	shares
CY2022Q4	us-gaap	Preferred Stock Shares Outstanding PreferredStockSharesOutstanding	0	shares
CY2023Q4	us-gaap	Preferred Stock Value Outstanding PreferredStockValueOutstanding	0	usd
CY2022Q4	us-gaap	Preferred Stock Value Outstanding PreferredStockValueOutstanding	0	usd
CY2023Q4	us-gaap	Common Stock Par Or Stated Value Per Share CommonStockParOrStatedValuePerShare	0.001
CY2022Q4	us-gaap	Common Stock Par Or Stated Value Per Share CommonStockParOrStatedValuePerShare	0.001
CY2023Q4	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	800000000	shares
CY2022Q4	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	800000000	shares
CY2023Q4	us-gaap	Common Stock Shares Issued CommonStockSharesIssued	407200000	shares
CY2023Q4	us-gaap	Common Stock Shares Outstanding CommonStockSharesOutstanding	385400000	shares
CY2022Q4	us-gaap	Common Stock Shares Issued CommonStockSharesIssued	393200000	shares
CY2022Q4	us-gaap	Common Stock Shares Outstanding CommonStockSharesOutstanding	386300000	shares
CY2023Q4	us-gaap	Common Stock Value Outstanding CommonStockValueOutstanding	400000	usd
CY2022Q4	us-gaap	Common Stock Value Outstanding CommonStockValueOutstanding	400000	usd
CY2023Q4	us-gaap	Additional Paid In Capital Common Stock AdditionalPaidInCapitalCommonStock	3514600000	usd
CY2022Q4	us-gaap	Additional Paid In Capital Common Stock AdditionalPaidInCapitalCommonStock	2258100000	usd
CY2023Q4	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	-16700000	usd
CY2022Q4	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	-11600000	usd
CY2023Q4	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	1021400000	usd
CY2022Q4	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	479900000	usd
CY2023Q4	us-gaap	Treasury Stock Common Shares TreasuryStockCommonShares	21800000	shares
CY2022Q4	us-gaap	Treasury Stock Common Shares TreasuryStockCommonShares	6900000	shares
CY2023Q4	us-gaap	Treasury Stock Common Value TreasuryStockCommonValue	2451100000	usd
CY2022Q4	us-gaap	Treasury Stock Common Value TreasuryStockCommonValue	595000000.0	usd
CY2023Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	2068600000	usd
CY2022Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	2131800000	usd
CY2023Q4	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	6264500000	usd
CY2022Q4	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	5391700000	usd
CY2023	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	3622300000	usd
CY2022	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	2909800000	usd
CY2021	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	2448500000	usd
CY2023	us-gaap	Cost Of Goods And Services Sold CostOfGoodsAndServicesSold	1333400000	usd
CY2022	us-gaap	Cost Of Goods And Services Sold CostOfGoodsAndServicesSold	1026700000	usd
CY2021	us-gaap	Cost Of Goods And Services Sold CostOfGoodsAndServicesSold	768000000.0	usd
CY2023	us-gaap	Gross Profit GrossProfit	2288900000	usd
CY2022	us-gaap	Gross Profit GrossProfit	1883100000	usd
CY2021	us-gaap	Gross Profit GrossProfit	1680500000	usd
CY2023	us-gaap	Research And Development Expense ResearchAndDevelopmentExpense	505800000	usd
CY2022	us-gaap	Research And Development Expense ResearchAndDevelopmentExpense	484200000	usd
CY2021	us-gaap	Research And Development Expense ResearchAndDevelopmentExpense	517100000	usd
CY2023	dxcm	Collaborative Research And Development Fee CollaborativeResearchAndDevelopmentFee	0	usd
CY2022	dxcm	Collaborative Research And Development Fee CollaborativeResearchAndDevelopmentFee	0	usd
CY2021	dxcm	Collaborative Research And Development Fee CollaborativeResearchAndDevelopmentFee	87100000	usd
CY2023	us-gaap	Selling General And Administrative Expense SellingGeneralAndAdministrativeExpense	1185400000	usd
CY2022	us-gaap	Selling General And Administrative Expense SellingGeneralAndAdministrativeExpense	1007700000	usd
CY2021	us-gaap	Selling General And Administrative Expense SellingGeneralAndAdministrativeExpense	810500000	usd
CY2023	us-gaap	Operating Expenses OperatingExpenses	1691200000	usd
CY2022	us-gaap	Operating Expenses OperatingExpenses	1491900000	usd
CY2021	us-gaap	Operating Expenses OperatingExpenses	1414700000	usd
CY2023	us-gaap	Operating Income Loss OperatingIncomeLoss	597700000	usd
CY2022	us-gaap	Operating Income Loss OperatingIncomeLoss	391200000	usd
CY2021	us-gaap	Operating Income Loss OperatingIncomeLoss	265800000	usd
CY2023	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	112700000	usd
CY2022	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	-400000	usd
CY2021	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	-9000000.0	usd
CY2023	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	710400000	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
CY2023	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	168900000	usd
CY2022	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	49600000	usd
CY2021	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	39900000	usd
CY2023	us-gaap	Net Income Loss NetIncomeLoss	541500000	usd
CY2022	us-gaap	Net Income Loss NetIncomeLoss	341200000	usd
CY2021	us-gaap	Net Income Loss NetIncomeLoss	216900000	usd
CY2023	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	1.40
CY2022	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.88
CY2021	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.56
CY2023	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	386000000.0	shares
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
CY2023	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	1.30
CY2022	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.82
CY2021	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.53
CY2023	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	425500000	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
CY2023	us-gaap	Net Income Loss NetIncomeLoss	541500000	usd
CY2022	us-gaap	Net Income Loss NetIncomeLoss	341200000	usd
CY2021	us-gaap	Net Income Loss NetIncomeLoss	216900000	usd
CY2023	us-gaap	Other Comprehensive Income Foreign Currency Transaction And Translation Adjustment Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationAdjustmentNetOfTaxPortionAttributableToParent	-9200000	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
CY2023	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax	4100000	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
CY2023	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	-5100000	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
CY2023	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	536400000	usd
CY2022	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	329100000	usd
CY2021	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	214200000	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 StockIssuedDuringPeriodValueConversionOfConvertibleSecurities	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 StockIssuedDuringPeriodValueConversionOfConvertibleSecurities	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
CY2023	us-gaap	Stock Issued During Period Value Employee Benefit Plan StockIssuedDuringPeriodValueEmployeeBenefitPlan	0	usd
CY2023	us-gaap	Stock Issued During Period Value Employee Stock Purchase Plan StockIssuedDuringPeriodValueEmployeeStockPurchasePlan	26600000	usd
CY2023	dxcm	Stock Issued During Period Value Achievement Of Milestones StockIssuedDuringPeriodValueAchievementOfMilestones	-200000	usd
CY2023	us-gaap	Treasury Stock Value Acquired Cost Method TreasuryStockValueAcquiredCostMethod	689200000	usd
CY2023	dxcm	Adjustments To Additional Paid In Capital Tax Benefit From Equity Component Of Convertible Debt AdjustmentsToAdditionalPaidInCapitalTaxBenefitFromEquityComponentOfConvertibleDebt	4400000	usd
CY2023	us-gaap	Stock Issued During Period Value Conversion Of Convertible Securities StockIssuedDuringPeriodValueConversionOfConvertibleSecurities	-13100000	usd
CY2023	dxcm	Shares Received From Benefit Of Note Hedge Value SharesReceivedFromBenefitOfNoteHedgeValue	-6200000	usd
CY2023	dxcm	Adjustments To Additional Paid In Capital Purchase Of Capped Call Transactions Net Of Tax AdjustmentsToAdditionalPaidInCapitalPurchaseOfCappedCallTransactionsNetOfTax	76300000	usd
CY2023	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	150800000	usd
CY2023	us-gaap	Net Income Loss NetIncomeLoss	541500000	usd
CY2023	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	-5100000	usd
CY2023Q4	us-gaap	Stockholders Equity StockholdersEquity	2068600000	usd
CY2023	us-gaap	Net Income Loss NetIncomeLoss	541500000	usd
CY2022	us-gaap	Net Income Loss NetIncomeLoss	341200000	usd
CY2021	us-gaap	Net Income Loss NetIncomeLoss	216900000	usd
CY2023	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	186000000.0	usd
CY2022	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	155900000	usd
CY2021	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	102000000.0	usd
CY2023	us-gaap	Share Based Compensation ShareBasedCompensation	150800000	usd
CY2022	us-gaap	Share Based Compensation ShareBasedCompensation	126500000	usd
CY2021	us-gaap	Share Based Compensation ShareBasedCompensation	113400000	usd
CY2023	dxcm	Collaborative Research And Development Fee CollaborativeResearchAndDevelopmentFee	0	usd
CY2022	dxcm	Collaborative Research And Development Fee CollaborativeResearchAndDevelopmentFee	0	usd
CY2021	dxcm	Collaborative Research And Development Fee CollaborativeResearchAndDevelopmentFee	87100000	usd
CY2023	us-gaap	Gains Losses On Extinguishment Of Debt GainsLossesOnExtinguishmentOfDebt	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
CY2023	us-gaap	Paid In Kind Interest PaidInKindInterest	7800000	usd
CY2022	us-gaap	Paid In Kind Interest PaidInKindInterest	6300000	usd
CY2021	us-gaap	Paid In Kind Interest PaidInKindInterest	7200000	usd
CY2023	us-gaap	Equity Securities Fv Ni Realized Gain Loss EquitySecuritiesFvNiRealizedGainLoss	1900000	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
CY2023	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	-55000000.0	usd
CY2022	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	-21600000	usd
CY2021	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	15800000	usd
CY2023	us-gaap	Other Noncash Income Expense OtherNoncashIncomeExpense	83900000	usd
CY2022	us-gaap	Other Noncash Income Expense OtherNoncashIncomeExpense	-34700000	usd
CY2021	us-gaap	Other Noncash Income Expense OtherNoncashIncomeExpense	-43600000	usd
CY2023	us-gaap	Increase Decrease In Accounts Receivable IncreaseDecreaseInAccountsReceivable	260100000	usd
CY2022	us-gaap	Increase Decrease In Accounts Receivable IncreaseDecreaseInAccountsReceivable	199900000	usd
CY2021	us-gaap	Increase Decrease In Accounts Receivable IncreaseDecreaseInAccountsReceivable	75500000	usd
CY2023	us-gaap	Increase Decrease In Inventories IncreaseDecreaseInInventories	252600000	usd
CY2022	us-gaap	Increase Decrease In Inventories IncreaseDecreaseInInventories	-49300000	usd
CY2021	us-gaap	Increase Decrease In Inventories IncreaseDecreaseInInventories	112200000	usd
CY2023	us-gaap	Increase Decrease In Prepaid Deferred Expense And Other Assets IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets	-19300000	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
CY2023	dxcm	Increase Decreasein Operating Lease Assetsand Liabilities Net IncreaseDecreaseinOperatingLeaseAssetsandLiabilitiesNet	4500000	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
CY2023	us-gaap	Increase Decrease In Accounts Payable And Accrued Liabilities IncreaseDecreaseInAccountsPayableAndAccruedLiabilities	466500000	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
CY2023	us-gaap	Increase Decrease In Employee Related Liabilities IncreaseDecreaseInEmployeeRelatedLiabilities	37200000	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
CY2023	us-gaap	Increase Decrease In Other Deferred Liability IncreaseDecreaseInOtherDeferredLiability	-2600000	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
CY2023	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	748500000	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
CY2023	us-gaap	Payments To Acquire Available For Sale Securities Debt PaymentsToAcquireAvailableForSaleSecuritiesDebt	3200400000	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
CY2023	us-gaap	Proceeds From Sale And Maturity Of Available For Sale Securities ProceedsFromSaleAndMaturityOfAvailableForSaleSecurities	2947400000	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
CY2023	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	236600000	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
CY2023	us-gaap	Payments To Acquire Businesses Net Of Cash Acquired PaymentsToAcquireBusinessesNetOfCashAcquired	0	usd
CY2022	us-gaap	Payments To Acquire Businesses Net Of Cash Acquired PaymentsToAcquireBusinessesNetOfCashAcquired	3900000	usd
CY2021	us-gaap	Payments To Acquire Businesses Net Of Cash Acquired PaymentsToAcquireBusinessesNetOfCashAcquired	30200000	usd
CY2023	us-gaap	Payments For Proceeds From Other Investing Activities PaymentsForProceedsFromOtherInvestingActivities	17600000	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
CY2023	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-507200000	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
CY2023	us-gaap	Proceeds From Issuance Of Common Stock ProceedsFromIssuanceOfCommonStock	26600000	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
CY2023	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	688700000	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
CY2023	us-gaap	Proceeds From Convertible Debt ProceedsFromConvertibleDebt	1230600000	usd
CY2022	us-gaap	Proceeds From Convertible Debt ProceedsFromConvertibleDebt	0	usd
CY2021	us-gaap	Proceeds From Convertible Debt ProceedsFromConvertibleDebt	0	usd
CY2023	dxcm	Payments For Purchases Of Capped Call Transactions PaymentsForPurchasesOfCappedCallTransactions	101300000	usd
CY2022	dxcm	Payments For Purchases Of Capped Call Transactions PaymentsForPurchasesOfCappedCallTransactions	0	usd
CY2021	dxcm	Payments For Purchases Of Capped Call Transactions PaymentsForPurchasesOfCappedCallTransactions	0	usd
CY2023	us-gaap	Repayments Of Convertible Debt RepaymentsOfConvertibleDebt	787300000	usd
CY2022	us-gaap	Repayments Of Convertible Debt RepaymentsOfConvertibleDebt	0	usd
CY2021	us-gaap	Repayments Of Convertible Debt RepaymentsOfConvertibleDebt	0	usd
CY2023	us-gaap	Proceeds From Payments For Other Financing Activities ProceedsFromPaymentsForOtherFinancingActivities	1500000	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
CY2023	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-318600000	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
CY2023	us-gaap	Effect Of Exchange Rate On Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	1500000	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
CY2023	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	-75800000	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
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
CY2023Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	567500000	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
CY2023Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	566300000	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
CY2023Q4	us-gaap	Restricted Cash RestrictedCash	1200000	usd
CY2022Q4	us-gaap	Restricted Cash RestrictedCash	1000000.0	usd
CY2021Q4	us-gaap	Restricted Cash RestrictedCash	1000000.0	usd
CY2023Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	567500000	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
CY2023	us-gaap	Debt Conversion Converted Instrument Amount1 DebtConversionConvertedInstrumentAmount1	1501900000	usd
CY2022	us-gaap	Debt Conversion Converted Instrument Amount1 DebtConversionConvertedInstrumentAmount1	35900000	usd
CY2021	us-gaap	Debt Conversion Converted Instrument Amount1 DebtConversionConvertedInstrumentAmount1	157700000	usd
CY2023	dxcm	Treasury Stock Value Benefit Received From Note Hedge TreasuryStockValueBenefitReceivedFromNoteHedge	1490300000	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
CY2023	us-gaap	Noncash Or Part Noncash Acquisition Fixed Assets Acquired1 NoncashOrPartNoncashAcquisitionFixedAssetsAcquired1	53200000	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
CY2023	us-gaap	Interest Paid Net InterestPaidNet	12400000	usd
CY2022	us-gaap	Interest Paid Net InterestPaidNet	12200000	usd
CY2021	us-gaap	Interest Paid Net InterestPaidNet	11600000	usd
CY2023	us-gaap	Income Taxes Paid IncomeTaxesPaid	212300000	usd
CY2022	us-gaap	Income Taxes Paid IncomeTaxesPaid	114200000	usd
CY2021	us-gaap	Income Taxes Paid IncomeTaxesPaid	16800000	usd
CY2023	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><td style="width:18.900%"></td><td style="width:0.1%"></td><td style="width:1.0%"></td><td style="width:18.900%"></td><td style="width:0.1%"></td><td style="width:1.0%"></td><td style="width:18.900%"></td><td style="width:0.1%"></td><td style="width:1.0%"></td><td style="width:18.900%"></td><td style="width:0.1%"></td><td style="width:1.0%"></td><td style="width:18.900%"></td><td style="width:0.1%"></td></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"><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>
CY2023	dxcm	Maturity Threshold Of Investments Classified To Cash Equivalents MaturityThresholdOfInvestmentsClassifiedToCashEquivalents	P90D
CY2022	us-gaap	Advertising Expense AdvertisingExpense	160600000	usd
CY2021	us-gaap	Advertising Expense AdvertisingExpense	150100000	usd
CY2023	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><td style="width:18.900%"></td><td style="width:0.1%"></td><td style="width:1.0%"></td><td style="width:18.900%"></td><td style="width:0.1%"></td><td style="width:1.0%"></td><td style="width:18.900%"></td><td style="width:0.1%"></td><td style="width:1.0%"></td><td style="width:18.900%"></td><td style="width:0.1%"></td><td style="width:1.0%"></td><td style="width:18.900%"></td><td style="width:0.1%"></td></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"><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 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.</span></div>
CY2021	us-gaap	Goodwill Impairment Loss GoodwillImpairmentLoss	0	usd
CY2022	us-gaap	Goodwill Impairment Loss GoodwillImpairmentLoss	0	usd
CY2023	us-gaap	Goodwill Impairment Loss GoodwillImpairmentLoss	0	usd
CY2021	us-gaap	Impairment Of Intangible Assets Excluding Goodwill ImpairmentOfIntangibleAssetsExcludingGoodwill	0	usd
CY2023	us-gaap	Impairment Of Intangible Assets Excluding Goodwill ImpairmentOfIntangibleAssetsExcludingGoodwill	0	usd
CY2022	us-gaap	Impairment Of Intangible Assets Excluding Goodwill ImpairmentOfIntangibleAssetsExcludingGoodwill	0	usd
CY2023	dxcm	Revenue Recognition Sales Returns Coverage Period RevenueRecognitionSalesReturnsCoveragePeriod	P30D
CY2023Q4	us-gaap	Unbilled Contracts Receivable UnbilledContractsReceivable	8000000.0	usd
CY2023Q4	us-gaap	Contract With Customer Liability Noncurrent ContractWithCustomerLiabilityNoncurrent	7400000	usd
CY2022Q4	us-gaap	Contract With Customer Liability Noncurrent ContractWithCustomerLiabilityNoncurrent	19000000.0	usd
CY2023	us-gaap	Advertising Expense AdvertisingExpense	180800000	usd
CY2023	us-gaap	Net Income Loss NetIncomeLoss	541500000	usd
CY2022	us-gaap	Net Income Loss NetIncomeLoss	341200000	usd
CY2021	us-gaap	Net Income Loss NetIncomeLoss	216900000	usd
CY2023	us-gaap	Interest On Convertible Debt Net Of Tax InterestOnConvertibleDebtNetOfTax	12600000	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
CY2023	us-gaap	Net Income Loss Attributable To Parent Diluted NetIncomeLossAttributableToParentDiluted	554100000	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
CY2023	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	1.40
CY2022	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.88
CY2021	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.56
CY2023	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	1.30
CY2022	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.82
CY2021	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.53
CY2023	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	386000000.0	shares
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
CY2023	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	425500000	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
CY2022Q1	dxcm	Shares Issued In Connection With The Restated Collaboration Agreement SharesIssuedInConnectionWithTheRestatedCollaborationAgreement	2900000	shares
CY2023Q4	us-gaap	Cash Equivalents At Carrying Value CashEquivalentsAtCarryingValue	315900000	usd
CY2023Q4	us-gaap	Available For Sale Securities Debt Securities AvailableForSaleSecuritiesDebtSecurities	2157800000	usd
CY2023Q4	us-gaap	Other Assets Fair Value Disclosure OtherAssetsFairValueDisclosure	15200000	usd
CY2023Q4	us-gaap	Assets Fair Value Disclosure AssetsFairValueDisclosure	2488900000	usd
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
CY2023	dxcm	Fair Value Assets Level3 Transfers Amount FairValueAssetsLevel3TransfersAmount	0	usd
CY2022	dxcm	Fair Value Assets Level3 Transfers Amount FairValueAssetsLevel3TransfersAmount	0	usd
CY2023Q4	us-gaap	Equity Securities Without Readily Determinable Fair Value Amount EquitySecuritiesWithoutReadilyDeterminableFairValueAmount	38500000	usd
CY2022Q4	us-gaap	Equity Securities Without Readily Determinable Fair Value Amount EquitySecuritiesWithoutReadilyDeterminableFairValueAmount	19000000	usd
CY2023	us-gaap	Impairment Of Long Lived Assets Held For Use ImpairmentOfLongLivedAssetsHeldForUse	0	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
CY2023Q4	us-gaap	Available For Sale Debt Securities Amortized Cost Basis AvailableForSaleDebtSecuritiesAmortizedCostBasis	2157400000	usd
CY2023Q4	us-gaap	Available For Sale Debt Securities Accumulated Gross Unrealized Gain Before Tax AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax	1300000	usd
CY2023Q4	us-gaap	Available For Sale Debt Securities Accumulated Gross Unrealized Loss Before Tax AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax	900000	usd
CY2023Q4	us-gaap	Available For Sale Securities Debt Securities AvailableForSaleSecuritiesDebtSecurities	2157800000	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
CY2023	us-gaap	Debt Instrument Term DebtInstrumentTerm	P12M
CY2023Q4	us-gaap	Available For Sale Securities Debt Securities Current AvailableForSaleSecuritiesDebtSecuritiesCurrent	2160000000	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 And Equity Securities Unrealized Gain Loss DebtAndEquitySecuritiesUnrealizedGainLoss	0	usd
CY2022	us-gaap	Debt And Equity Securities Unrealized Gain Loss DebtAndEquitySecuritiesUnrealizedGainLoss	0	usd
CY2023	us-gaap	Debt And Equity Securities Unrealized Gain Loss DebtAndEquitySecuritiesUnrealizedGainLoss	0	usd
CY2023Q4	us-gaap	Accounts Receivable Gross AccountsReceivableGross	983200000	usd
CY2022Q4	us-gaap	Accounts Receivable Gross AccountsReceivableGross	720600000	usd
CY2023Q4	us-gaap	Allowance For Doubtful Accounts Receivable AllowanceForDoubtfulAccountsReceivable	9300000	usd
CY2022Q4	us-gaap	Allowance For Doubtful Accounts Receivable AllowanceForDoubtfulAccountsReceivable	7300000	usd
CY2023Q4	us-gaap	Accounts Receivable Net AccountsReceivableNet	973900000	usd
CY2022Q4	us-gaap	Accounts Receivable Net AccountsReceivableNet	713300000	usd
CY2023Q4	dxcm	Accounts Receivable Allowance For Credit Loss Cash Discount AccountsReceivableAllowanceForCreditLossCashDiscount	13700000	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
CY2023Q4	us-gaap	Inventory Raw Materials Net Of Reserves InventoryRawMaterialsNetOfReserves	319500000	usd
CY2022Q4	us-gaap	Inventory Raw Materials Net Of Reserves InventoryRawMaterialsNetOfReserves	159000000.0	usd
CY2023Q4	us-gaap	Inventory Work In Process Net Of Reserves InventoryWorkInProcessNetOfReserves	30000000.0	usd
CY2022Q4	us-gaap	Inventory Work In Process Net Of Reserves InventoryWorkInProcessNetOfReserves	17200000	usd
CY2023Q4	us-gaap	Inventory Finished Goods Net Of Reserves InventoryFinishedGoodsNetOfReserves	210100000	usd
CY2022Q4	us-gaap	Inventory Finished Goods Net Of Reserves InventoryFinishedGoodsNetOfReserves	130500000	usd
CY2023Q4	us-gaap	Inventory Net InventoryNet	559600000	usd
CY2022Q4	us-gaap	Inventory Net InventoryNet	306700000	usd
CY2023Q4	us-gaap	Prepaid Expense Current PrepaidExpenseCurrent	58700000	usd
CY2022Q4	us-gaap	Prepaid Expense Current PrepaidExpenseCurrent	48900000	usd
CY2023Q4	dxcm	Prepaid Inventory Current PrepaidInventoryCurrent	31500000	usd
CY2022Q4	dxcm	Prepaid Inventory Current PrepaidInventoryCurrent	67800000	usd
CY2023Q4	dxcm	Deferred Compensation Plan Assets Current DeferredCompensationPlanAssetsCurrent	15200000	usd
CY2022Q4	dxcm	Deferred Compensation Plan Assets Current DeferredCompensationPlanAssetsCurrent	10200000	usd
CY2023Q4	us-gaap	Income Taxes Receivable IncomeTaxesReceivable	13600000	usd
CY2022Q4	us-gaap	Income Taxes Receivable IncomeTaxesReceivable	38900000	usd
CY2023Q4	us-gaap	Other Assets Current OtherAssetsCurrent	49300000	usd
CY2022Q4	us-gaap	Other Assets Current OtherAssetsCurrent	26800000	usd
CY2023Q4	us-gaap	Prepaid Expense And Other Assets Current PrepaidExpenseAndOtherAssetsCurrent	168300000	usd
CY2022Q4	us-gaap	Prepaid Expense And Other Assets Current PrepaidExpenseAndOtherAssetsCurrent	192600000	usd
CY2023Q4	us-gaap	Property Plant And Equipment And Finance Lease Right Of Use Asset Before Accumulated Depreciation And Amortization PropertyPlantAndEquipmentAndFinanceLeaseRightOfUseAssetBeforeAccumulatedDepreciationAndAmortization	1622500000	usd
CY2022Q4	us-gaap	Property Plant And Equipment And Finance Lease Right Of Use Asset Before Accumulated Depreciation And Amortization PropertyPlantAndEquipmentAndFinanceLeaseRightOfUseAssetBeforeAccumulatedDepreciationAndAmortization	1418800000	usd
CY2023Q4	us-gaap	Property Plant And Equipment And Finance Lease Right Of Use Asset Accumulated Depreciation And Amortization PropertyPlantAndEquipmentAndFinanceLeaseRightOfUseAssetAccumulatedDepreciationAndAmortization	509400000	usd
CY2022Q4	us-gaap	Property Plant And Equipment And Finance Lease Right Of Use Asset Accumulated Depreciation And Amortization PropertyPlantAndEquipmentAndFinanceLeaseRightOfUseAssetAccumulatedDepreciationAndAmortization	363200000	usd
CY2023Q4	us-gaap	Property Plant And Equipment And Finance Lease Right Of Use Asset After Accumulated Depreciation And Amortization PropertyPlantAndEquipmentAndFinanceLeaseRightOfUseAssetAfterAccumulatedDepreciationAndAmortization	1113100000	usd
CY2022Q4	us-gaap	Property Plant And Equipment And Finance Lease Right Of Use Asset After Accumulated Depreciation And Amortization PropertyPlantAndEquipmentAndFinanceLeaseRightOfUseAssetAfterAccumulatedDepreciationAndAmortization	1055600000	usd
CY2023	us-gaap	Depreciation Depreciation	147400000	usd
CY2022	us-gaap	Depreciation Depreciation	144100000	usd
CY2021	us-gaap	Depreciation Depreciation	96300000	usd
CY2023	us-gaap	Gain Loss On Sale Of Property Plant Equipment GainLossOnSaleOfPropertyPlantEquipment	-700000	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
CY2023Q4	us-gaap	Finite Lived Intangible Asset Useful Life FiniteLivedIntangibleAssetUsefulLife	P4Y1M6D
CY2023Q4	us-gaap	Finite Lived Intangible Assets Gross FiniteLivedIntangibleAssetsGross	195500000	usd
CY2023Q4	us-gaap	Finite Lived Intangible Assets Accumulated Amortization FiniteLivedIntangibleAssetsAccumulatedAmortization	61000000.0	usd
CY2023Q4	us-gaap	Finite Lived Intangible Assets Net FiniteLivedIntangibleAssetsNet	134500000	usd
CY2022Q4	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
CY2023	dxcm	Amortization Of Intangible Assets Included In Cost Of Sales AmortizationOfIntangibleAssetsIncludedInCostOfSales	30500000	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
CY2023	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	8100000	usd
CY2022	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	7500000	usd
CY2021	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	3700000	usd
CY2023	dxcm	Amortization Of Intangibles Included In Cost Of Sales And Operating Expenses AmortizationOfIntangiblesIncludedInCostOfSalesAndOperatingExpenses	38600000	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
CY2023Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Next Twelve Months FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths	35200000	usd
CY2023Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Two FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo	32600000	usd
CY2023Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Three FiniteLivedIntangibleAssetsAmortizationExpenseYearThree	30900000	usd
CY2023Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Four FiniteLivedIntangibleAssetsAmortizationExpenseYearFour	28600000	usd
CY2023Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Five FiniteLivedIntangibleAssetsAmortizationExpenseYearFive	7200000	usd
CY2023Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense After Year Five FiniteLivedIntangibleAssetsAmortizationExpenseAfterYearFive	0	usd
CY2023Q4	us-gaap	Finite Lived Intangible Assets Net FiniteLivedIntangibleAssetsNet	134500000	usd
CY2023Q4	us-gaap	Long Term Investments LongTermInvestments	38500000	usd
CY2022Q4	us-gaap	Long Term Investments LongTermInvestments	19000000.0	usd
CY2023Q4	dxcm	Long Term Deposits LongTermDeposits	14400000	usd
CY2022Q4	dxcm	Long Term Deposits LongTermDeposits	16200000	usd
CY2023Q4	dxcm	Other Long Term Assets OtherLongTermAssets	22100000	usd
CY2022Q4	dxcm	Other Long Term Assets OtherLongTermAssets	11900000	usd
CY2023Q4	us-gaap	Other Assets Noncurrent OtherAssetsNoncurrent	75000000.0	usd
CY2022Q4	us-gaap	Other Assets Noncurrent OtherAssetsNoncurrent	47100000	usd
CY2023Q4	us-gaap	Accounts Payable Trade Current AccountsPayableTradeCurrent	276400000	usd
CY2022Q4	us-gaap	Accounts Payable Trade Current AccountsPayableTradeCurrent	237900000	usd
CY2023Q4	dxcm	Accrued Tax Audit And Legal Fees Current AccruedTaxAuditAndLegalFeesCurrent	42600000	usd
CY2022Q4	dxcm	Accrued Tax Audit And Legal Fees Current AccruedTaxAuditAndLegalFeesCurrent	31900000	usd
CY2023Q4	dxcm	Pharmacy Rebates Current PharmacyRebatesCurrent	950700000	usd
CY2022Q4	dxcm	Pharmacy Rebates Current PharmacyRebatesCurrent	556400000	usd
CY2023Q4	us-gaap	Standard Product Warranty Accrual StandardProductWarrantyAccrual	12600000	usd
CY2022Q4	us-gaap	Standard Product Warranty Accrual StandardProductWarrantyAccrual	12800000	usd
CY2023Q4	us-gaap	Accrued Income Taxes Current AccruedIncomeTaxesCurrent	7500000	usd
CY2022Q4	us-gaap	Accrued Income Taxes Current AccruedIncomeTaxesCurrent	12900000	usd
CY2023Q4	us-gaap	Deferred Compensation Liability Current DeferredCompensationLiabilityCurrent	15200000	usd
CY2022Q4	us-gaap	Deferred Compensation Liability Current DeferredCompensationLiabilityCurrent	10200000	usd
CY2023Q4	us-gaap	Other Accrued Liabilities Current OtherAccruedLiabilitiesCurrent	40500000	usd
CY2022Q4	us-gaap	Other Accrued Liabilities Current OtherAccruedLiabilitiesCurrent	39700000	usd
CY2023Q4	us-gaap	Accounts Payable And Other Accrued Liabilities Current AccountsPayableAndOtherAccruedLiabilitiesCurrent	1345500000	usd
CY2022Q4	us-gaap	Accounts Payable And Other Accrued Liabilities Current AccountsPayableAndOtherAccruedLiabilitiesCurrent	901800000	usd
CY2023Q4	dxcm	Accrued Wages Bonuses And Taxes Current AccruedWagesBonusesAndTaxesCurrent	139800000	usd
CY2022Q4	dxcm	Accrued Wages Bonuses And Taxes Current AccruedWagesBonusesAndTaxesCurrent	96800000	usd
CY2023Q4	us-gaap	Accrued Employee Benefits Current AccruedEmployeeBenefitsCurrent	31200000	usd
CY2022Q4	us-gaap	Accrued Employee Benefits Current AccruedEmployeeBenefitsCurrent	37500000	usd
CY2023Q4	us-gaap	Employee Related Liabilities Current EmployeeRelatedLiabilitiesCurrent	171000000.0	usd
CY2022Q4	us-gaap	Employee Related Liabilities Current EmployeeRelatedLiabilitiesCurrent	134300000	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
CY2023	dxcm	Standard Product Warranty Accrual Charges To Costs And Expenses StandardProductWarrantyAccrualChargesToCostsAndExpenses	51500000	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
CY2023	us-gaap	Product Warranty Accrual Payments ProductWarrantyAccrualPayments	51700000	usd
CY2022	us-gaap	Product Warranty Accrual Payments ProductWarrantyAccrualPayments	43100000	usd
CY2021	us-gaap	Product Warranty Accrual Payments ProductWarrantyAccrualPayments	40300000	usd
CY2023Q4	us-gaap	Standard Product Warranty Accrual StandardProductWarrantyAccrual	12600000	usd
CY2022Q4	us-gaap	Standard Product Warranty Accrual StandardProductWarrantyAccrual	12800000	usd
CY2021Q4	us-gaap	Standard Product Warranty Accrual StandardProductWarrantyAccrual	12900000	usd
CY2023Q4	us-gaap	Finance Lease Liability Noncurrent FinanceLeaseLiabilityNoncurrent	58600000	usd
CY2022Q4	us-gaap	Finance Lease Liability Noncurrent FinanceLeaseLiabilityNoncurrent	59600000	usd
CY2023Q4	us-gaap	Contract With Customer Liability Noncurrent ContractWithCustomerLiabilityNoncurrent	7400000	usd
CY2022Q4	us-gaap	Contract With Customer Liability Noncurrent ContractWithCustomerLiabilityNoncurrent	19000000.0	usd
CY2023Q4	us-gaap	Asset Retirement Obligation AssetRetirementObligation	15700000	usd
CY2022Q4	us-gaap	Asset Retirement Obligation AssetRetirementObligation	11100000	usd
CY2023Q4	dxcm	Other Tax Liabilities Noncurrent OtherTaxLiabilitiesNoncurrent	38700000	usd
CY2022Q4	dxcm	Other Tax Liabilities Noncurrent OtherTaxLiabilitiesNoncurrent	32700000	usd
CY2023Q4	us-gaap	Other Sundry Liabilities Noncurrent OtherSundryLiabilitiesNoncurrent	5200000	usd
CY2022Q4	us-gaap	Other Sundry Liabilities Noncurrent OtherSundryLiabilitiesNoncurrent	5900000	usd
CY2023Q4	us-gaap	Other Liabilities Noncurrent OtherLiabilitiesNoncurrent	125600000	usd
CY2022Q4	us-gaap	Other Liabilities Noncurrent OtherLiabilitiesNoncurrent	128300000	usd
CY2023	us-gaap	Investment Income Interest And Dividend InvestmentIncomeInterestAndDividend	135000000.0	usd
CY2022	us-gaap	Investment Income Interest And Dividend InvestmentIncomeInterestAndDividend	23800000	usd
CY2021	us-gaap	Investment Income Interest And Dividend InvestmentIncomeInterestAndDividend	1700000	usd
CY2023	us-gaap	Interest Expense InterestExpense	20300000	usd
CY2022	us-gaap	Interest Expense InterestExpense	18600000	usd
CY2021	us-gaap	Interest Expense InterestExpense	18800000	usd
CY2023	us-gaap	Debt And Equity Securities Gain Loss DebtAndEquitySecuritiesGainLoss	1900000	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
CY2023	us-gaap	Gains Losses On Extinguishment Of Debt GainsLossesOnExtinguishmentOfDebt	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
CY2023	us-gaap	Other Nonoperating Expense OtherNonoperatingExpense	3900000	usd
CY2022	us-gaap	Other Nonoperating Expense OtherNonoperatingExpense	5800000	usd
CY2021	us-gaap	Other Nonoperating Expense OtherNonoperatingExpense	3400000	usd
CY2023	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	112700000	usd
CY2022	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	-400000	usd
CY2021	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	-9000000.0	usd
CY2023	us-gaap	Interest Expense Debt Excluding Amortization InterestExpenseDebtExcludingAmortization	9100000	usd
CY2022	us-gaap	Interest Expense Debt Excluding Amortization InterestExpenseDebtExcludingAmortization	8800000	usd
CY2021	us-gaap	Interest Expense Debt Excluding Amortization InterestExpenseDebtExcludingAmortization	9300000	usd
CY2023	us-gaap	Amortization Of Financing Costs AmortizationOfFinancingCosts	7300000	usd
CY2022	us-gaap	Amortization Of Financing Costs AmortizationOfFinancingCosts	5900000	usd
CY2021	us-gaap	Amortization Of Financing Costs AmortizationOfFinancingCosts	6000000.0	usd
CY2023	us-gaap	Interest Expense Debt InterestExpenseDebt	16400000	usd
CY2022	us-gaap	Interest Expense Debt InterestExpenseDebt	14700000	usd
CY2021	us-gaap	Interest Expense Debt InterestExpenseDebt	15300000	usd
CY2023Q4	us-gaap	Line Of Credit Facility Remaining Borrowing Capacity LineOfCreditFacilityRemainingBorrowingCapacity	192600000	usd
CY2023Q4	us-gaap	Deposit Assets DepositAssets	5500000	usd
CY2023Q4	us-gaap	Lessee Operating Lease Liability Payments Due Next Twelve Months LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths	26300000	usd
CY2023Q4	us-gaap	Finance Lease Liability Payments Due Next Twelve Months FinanceLeaseLiabilityPaymentsDueNextTwelveMonths	7900000	usd
CY2023Q4	us-gaap	Lessee Operating Lease Liability Payments Due Year Two LesseeOperatingLeaseLiabilityPaymentsDueYearTwo	24500000	usd
CY2023Q4	us-gaap	Finance Lease Liability Payments Due Year Two FinanceLeaseLiabilityPaymentsDueYearTwo	7000000.0	usd
CY2023Q4	us-gaap	Lessee Operating Lease Liability Payments Due Year Three LesseeOperatingLeaseLiabilityPaymentsDueYearThree	24400000	usd
CY2023Q4	us-gaap	Finance Lease Liability Payments Due Year Three FinanceLeaseLiabilityPaymentsDueYearThree	6200000	usd
CY2023Q4	us-gaap	Lessee Operating Lease Liability Payments Due Year Four LesseeOperatingLeaseLiabilityPaymentsDueYearFour	19200000	usd
CY2023Q4	us-gaap	Finance Lease Liability Payments Due Year Four FinanceLeaseLiabilityPaymentsDueYearFour	5300000	usd
CY2023Q4	us-gaap	Lessee Operating Lease Liability Payments Due Year Five LesseeOperatingLeaseLiabilityPaymentsDueYearFive	14200000	usd
CY2023Q4	us-gaap	Finance Lease Liability Payments Due Year Five FinanceLeaseLiabilityPaymentsDueYearFive	5400000	usd
CY2023Q4	us-gaap	Lessee Operating Lease Liability Payments Due After Year Five LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive	9300000	usd
CY2023Q4	us-gaap	Finance Lease Liability Payments Due After Year Five FinanceLeaseLiabilityPaymentsDueAfterYearFive	60100000	usd
CY2023Q4	us-gaap	Lessee Operating Lease Liability Payments Due LesseeOperatingLeaseLiabilityPaymentsDue	117900000	usd
CY2023Q4	us-gaap	Finance Lease Liability Payments Due FinanceLeaseLiabilityPaymentsDue	91900000	usd
CY2023Q4	us-gaap	Lessee Operating Lease Liability Undiscounted Excess Amount LesseeOperatingLeaseLiabilityUndiscountedExcessAmount	16700000	usd
CY2023Q4	us-gaap	Finance Lease Liability Undiscounted Excess Amount FinanceLeaseLiabilityUndiscountedExcessAmount	28600000	usd
CY2023Q4	us-gaap	Operating Lease Liability OperatingLeaseLiability	101200000	usd
CY2023Q4	us-gaap	Finance Lease Liability FinanceLeaseLiability	63300000	usd
CY2023Q4	us-gaap	Operating Lease Liability Current OperatingLeaseLiabilityCurrent	21100000	usd
CY2023Q4	us-gaap	Finance Lease Liability Current FinanceLeaseLiabilityCurrent	4700000	usd
CY2023Q4	us-gaap	Operating Lease Liability Noncurrent OperatingLeaseLiabilityNoncurrent	80100000	usd
CY2023Q4	us-gaap	Finance Lease Liability Noncurrent FinanceLeaseLiabilityNoncurrent	58600000	usd
CY2023Q4	us-gaap	Asset Retirement Obligation AssetRetirementObligation	15700000	usd
CY2022Q4	us-gaap	Asset Retirement Obligation AssetRetirementObligation	11100000	usd
CY2023	us-gaap	Finance Lease Right Of Use Asset Amortization FinanceLeaseRightOfUseAssetAmortization	6500000	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
CY2023	us-gaap	Finance Lease Interest Expense FinanceLeaseInterestExpense	3200000	usd
CY2022	us-gaap	Finance Lease Interest Expense FinanceLeaseInterestExpense	3300000	usd
CY2021	us-gaap	Finance Lease Interest Expense FinanceLeaseInterestExpense	3000000.0	usd
CY2023	us-gaap	Operating Lease Cost OperatingLeaseCost	22900000	usd
CY2022	us-gaap	Operating Lease Cost OperatingLeaseCost	22600000	usd
CY2021	us-gaap	Operating Lease Cost OperatingLeaseCost	23300000	usd
CY2023	us-gaap	Operating Lease Impairment Loss OperatingLeaseImpairmentLoss	0	usd
CY2022	us-gaap	Operating Lease Impairment Loss OperatingLeaseImpairmentLoss	6300000	usd
CY2021	us-gaap	Operating Lease Impairment Loss OperatingLeaseImpairmentLoss	0	usd
CY2023	us-gaap	Short Term Lease Cost ShortTermLeaseCost	2400000	usd
CY2022	us-gaap	Short Term Lease Cost ShortTermLeaseCost	3500000	usd
CY2021	us-gaap	Short Term Lease Cost ShortTermLeaseCost	2300000	usd
CY2023	us-gaap	Variable Lease Cost VariableLeaseCost	8300000	usd
CY2022	us-gaap	Variable Lease Cost VariableLeaseCost	8000000.0	usd
CY2021	us-gaap	Variable Lease Cost VariableLeaseCost	6000000.0	usd
CY2023	us-gaap	Lease Cost LeaseCost	43300000	usd
CY2022	us-gaap	Lease Cost LeaseCost	49300000	usd
CY2021	us-gaap	Lease Cost LeaseCost	38700000	usd
CY2022	us-gaap	Impairment Of Long Lived Assets Held For Use ImpairmentOfLongLivedAssetsHeldForUse	23000000	usd
CY2023Q4	dxcm	Impaired Long Lived Assets Fair Value ImpairedLongLivedAssetsFairValue	2500000	usd
CY2023	us-gaap	Operating Lease Payments OperatingLeasePayments	28100000	usd
CY2022	us-gaap	Operating Lease Payments OperatingLeasePayments	26000000.0	usd
CY2021	us-gaap	Operating Lease Payments OperatingLeasePayments	23300000	usd
CY2023	us-gaap	Finance Lease Interest Payment On Liability FinanceLeaseInterestPaymentOnLiability	3200000	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
CY2023	us-gaap	Finance Lease Principal Payments FinanceLeasePrincipalPayments	4700000	usd
CY2022	us-gaap	Finance Lease Principal Payments FinanceLeasePrincipalPayments	15500000	usd
CY2021	us-gaap	Finance Lease Principal Payments FinanceLeasePrincipalPayments	9900000	usd
CY2023	us-gaap	Right Of Use Asset Obtained In Exchange For Operating Lease Liability RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability	7500000	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
CY2023	us-gaap	Right Of Use Asset Obtained In Exchange For Finance Lease Liability RightOfUseAssetObtainedInExchangeForFinanceLeaseLiability	4200000	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
CY2023Q4	us-gaap	Operating Lease Weighted Average Remaining Lease Term1 OperatingLeaseWeightedAverageRemainingLeaseTerm1	P5Y
CY2022Q4	us-gaap	Operating Lease Weighted Average Remaining Lease Term1 OperatingLeaseWeightedAverageRemainingLeaseTerm1	P5Y6M
CY2021Q4	us-gaap	Operating Lease Weighted Average Remaining Lease Term1 OperatingLeaseWeightedAverageRemainingLeaseTerm1	P5Y6M
CY2023Q4	us-gaap	Finance Lease Weighted Average Remaining Lease Term1 FinanceLeaseWeightedAverageRemainingLeaseTerm1	P14Y1M6D
CY2022Q4	us-gaap	Finance Lease Weighted Average Remaining Lease Term1 FinanceLeaseWeightedAverageRemainingLeaseTerm1	P15Y2M12D
CY2021Q4	us-gaap	Finance Lease Weighted Average Remaining Lease Term1 FinanceLeaseWeightedAverageRemainingLeaseTerm1	P15Y10M24D
CY2023Q4	us-gaap	Operating Lease Weighted Average Discount Rate Percent OperatingLeaseWeightedAverageDiscountRatePercent	0.061
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
CY2023Q4	us-gaap	Finance Lease Weighted Average Discount Rate Percent FinanceLeaseWeightedAverageDiscountRatePercent	0.053
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
CY2023	dxcm	Lessee Operating Leases Lease Cost Amortization LesseeOperatingLeasesLeaseCostAmortization	16500000	usd
CY2022	dxcm	Lessee Operating Leases Lease Cost Amortization LesseeOperatingLeasesLeaseCostAmortization	16400000	usd
CY2021	dxcm	Lessee Operating Leases Lease Cost Amortization LesseeOperatingLeasesLeaseCostAmortization	18000000.0	usd
CY2023Q4	us-gaap	Recorded Unconditional Purchase Obligation Due Within One Year RecordedUnconditionalPurchaseObligationDueWithinOneYear	793000000	usd
CY2022Q4	us-gaap	Recorded Unconditional Purchase Obligation Due Within One Year RecordedUnconditionalPurchaseObligationDueWithinOneYear	442700000	usd
CY2023	dxcm	Recorded Unconditional Purchase Obligation Due Within One Year Maximum Term RecordedUnconditionalPurchaseObligationDueWithinOneYearMaximumTerm	P1Y
CY2023	us-gaap	Income Loss From Continuing Operations Before Income Taxes Domestic IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic	732400000	usd
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
CY2023	us-gaap	Income Loss From Continuing Operations Before Income Taxes Foreign IncomeLossFromContinuingOperationsBeforeIncomeTaxesForeign	-22000000.0	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
CY2023	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	710400000	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
CY2023	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	149100000	usd
CY2022	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	32600000	usd
CY2021	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	5700000	usd
CY2023	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	18100000	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
CY2023	us-gaap	Current Foreign Tax Expense Benefit CurrentForeignTaxExpenseBenefit	56700000	usd
CY2023Q4	us-gaap	Deferred Tax Assets In Process Research And Development DeferredTaxAssetsInProcessResearchAndDevelopment	233400000	usd
CY2022Q4	us-gaap	Deferred Tax Assets In Process Research And Development DeferredTaxAssetsInProcessResearchAndDevelopment	211900000	usd
CY2023Q4	us-gaap	Deferred Tax Assets Tax Credit Carryforwards DeferredTaxAssetsTaxCreditCarryforwards	71400000	usd
CY2022Q4	us-gaap	Deferred Tax Assets Tax Credit Carryforwards DeferredTaxAssetsTaxCreditCarryforwards	61100000	usd
CY2023Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Share Based Compensation Cost DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsShareBasedCompensationCost	27000000.0	usd
CY2022Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Share Based Compensation Cost DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsShareBasedCompensationCost	16800000	usd
CY2023Q4	dxcm	Deferred Tax Assets Fixed Assets And Intangible Assets DeferredTaxAssetsFixedAssetsAndIntangibleAssets	279800000	usd
CY2022Q4	dxcm	Deferred Tax Assets Fixed Assets And Intangible Assets DeferredTaxAssetsFixedAssetsAndIntangibleAssets	34400000	usd
CY2022	us-gaap	Current Foreign Tax Expense Benefit CurrentForeignTaxExpenseBenefit	12500000	usd
CY2021	us-gaap	Current Foreign Tax Expense Benefit CurrentForeignTaxExpenseBenefit	10100000	usd
CY2023	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	223900000	usd
CY2022	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	71200000	usd
CY2021	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	24100000	usd
CY2023	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	-93700000	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
CY2023	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	14600000	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
CY2023	us-gaap	Deferred Foreign Income Tax Expense Benefit DeferredForeignIncomeTaxExpenseBenefit	24100000	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
CY2023	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	-55000000.0	usd
CY2022	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	-21600000	usd
CY2021	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	15800000	usd
CY2023	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	168900000	usd
CY2022	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	49600000	usd
CY2021	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	39900000	usd
CY2023	dxcm	Unused Expired Federal Income Tax Credits UnusedExpiredFederalIncomeTaxCredits	1500000	usd
CY2023Q4	us-gaap	Deferred Tax Assets Operating Loss Carryforwards DeferredTaxAssetsOperatingLossCarryforwards	18100000	usd
CY2022Q4	us-gaap	Deferred Tax Assets Operating Loss Carryforwards DeferredTaxAssetsOperatingLossCarryforwards	46400000	usd
CY2023Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Accrued Liabilities DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAccruedLiabilities	91000000.0	usd
CY2022Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Accrued Liabilities DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAccruedLiabilities	105300000	usd
CY2023Q4	dxcm	Deferred Tax Assets Convertible Debt DeferredTaxAssetsConvertibleDebt	-20600000	usd
CY2022Q4	dxcm	Deferred Tax Assets Convertible Debt DeferredTaxAssetsConvertibleDebt	-9300000	usd
CY2023Q4	us-gaap	Deferred Tax Assets Gross DeferredTaxAssetsGross	741300000	usd
CY2022Q4	us-gaap	Deferred Tax Assets Gross DeferredTaxAssetsGross	485200000	usd
CY2023Q4	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	264300000	usd
CY2022Q4	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	78700000	usd
CY2023Q4	us-gaap	Deferred Tax Assets Net DeferredTaxAssetsNet	477000000.0	usd
CY2022Q4	us-gaap	Deferred Tax Assets Net DeferredTaxAssetsNet	406500000	usd
CY2023Q4	dxcm	Deferred Tax Liabilities Fixed Assets And Intangible Assets DeferredTaxLiabilitiesFixedAssetsAndIntangibleAssets	60400000	usd
CY2022Q4	dxcm	Deferred Tax Liabilities Fixed Assets And Intangible Assets DeferredTaxLiabilitiesFixedAssetsAndIntangibleAssets	69900000	usd
CY2023Q4	us-gaap	Deferred Tax Liabilities Other DeferredTaxLiabilitiesOther	0	usd
CY2022Q4	us-gaap	Deferred Tax Liabilities Other DeferredTaxLiabilitiesOther	300000	usd
CY2023Q4	us-gaap	Deferred Income Tax Liabilities DeferredIncomeTaxLiabilities	60400000	usd
CY2022Q4	us-gaap	Deferred Income Tax Liabilities DeferredIncomeTaxLiabilities	70200000	usd
CY2023Q4	us-gaap	Deferred Tax Assets Liabilities Net DeferredTaxAssetsLiabilitiesNet	416600000	usd
CY2022Q4	us-gaap	Deferred Tax Assets Liabilities Net DeferredTaxAssetsLiabilitiesNet	336300000	usd
CY2023Q3	us-gaap	Deferred Tax Assets Tax Deferred Expense Other DeferredTaxAssetsTaxDeferredExpenseOther	193200000	usd
CY2023	us-gaap	Valuation Allowance Deferred Tax Asset Change In Amount ValuationAllowanceDeferredTaxAssetChangeInAmount	185500000	usd
CY2023	us-gaap	Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate	149200000	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
CY2023	us-gaap	Income Tax Reconciliation State And Local Income Taxes IncomeTaxReconciliationStateAndLocalIncomeTaxes	7800000	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
CY2023	dxcm	Effective Income Tax Reconciliation Permanent Items EffectiveIncomeTaxReconciliationPermanentItems	-2700000	usd
CY2022	dxcm	Effective Income Tax Reconciliation Permanent Items EffectiveIncomeTaxReconciliationPermanentItems	600000	usd
CY2021	dxcm	Effective Income Tax Reconciliation Permanent Items EffectiveIncomeTaxReconciliationPermanentItems	5200000	usd
CY2023	us-gaap	Income Tax Reconciliation Tax Credits Research IncomeTaxReconciliationTaxCreditsResearch	28300000	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
CY2023	us-gaap	Income Tax Reconciliation Tax Credits Foreign IncomeTaxReconciliationTaxCreditsForeign	0	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
CY2023	us-gaap	Income Tax Reconciliation Foreign Income Tax Rate Differential IncomeTaxReconciliationForeignIncomeTaxRateDifferential	15800000	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
CY2023	us-gaap	Income Tax Reconciliation Nondeductible Expense Share Based Compensation Cost IncomeTaxReconciliationNondeductibleExpenseShareBasedCompensationCost	5600000	usd
CY2022	us-gaap	Income Tax Reconciliation Nondeductible Expense Share Based Compensation Cost IncomeTaxReconciliationNondeductibleExpenseShareBasedCompensationCost	-1200000	usd
CY2021	us-gaap	Income Tax Reconciliation Nondeductible Expense Share Based Compensation Cost IncomeTaxReconciliationNondeductibleExpenseShareBasedCompensationCost	-20400000	usd
CY2023	dxcm	Effective Income Tax Rate Reconciliation Collaboration Agreement Milestone Share Based Payment EffectiveIncomeTaxRateReconciliationCollaborationAgreementMilestoneShareBasedPayment	-72100000	usd
CY2022	dxcm	Effective Income Tax Rate Reconciliation Collaboration Agreement Milestone Share Based Payment EffectiveIncomeTaxRateReconciliationCollaborationAgreementMilestoneShareBasedPayment	-52900000	usd
CY2021	dxcm	Effective Income Tax Rate Reconciliation Collaboration Agreement Milestone Share Based Payment EffectiveIncomeTaxRateReconciliationCollaborationAgreementMilestoneShareBasedPayment	0	usd
CY2023	us-gaap	Income Tax Reconciliation Change In Enacted Tax Rate IncomeTaxReconciliationChangeInEnactedTaxRate	19400000	usd
CY2022	us-gaap	Income Tax Reconciliation Change In Enacted Tax Rate IncomeTaxReconciliationChangeInEnactedTaxRate	1000000.0	usd
CY2021	us-gaap	Income Tax Reconciliation Change In Enacted Tax Rate IncomeTaxReconciliationChangeInEnactedTaxRate	-10000000.0	usd
CY2023	dxcm	Effective Income Tax Rate Reconciliation Intellectual Property Transfer EffectiveIncomeTaxRateReconciliationIntellectualPropertyTransfer	63900000	usd
CY2022	dxcm	Effective Income Tax Rate Reconciliation Intellectual Property Transfer EffectiveIncomeTaxRateReconciliationIntellectualPropertyTransfer	0	usd
CY2021	dxcm	Effective Income Tax Rate Reconciliation Intellectual Property Transfer EffectiveIncomeTaxRateReconciliationIntellectualPropertyTransfer	0	usd
CY2023	us-gaap	Income Tax Reconciliation Other Adjustments IncomeTaxReconciliationOtherAdjustments	300000	usd
CY2022	us-gaap	Income Tax Reconciliation Other Adjustments IncomeTaxReconciliationOtherAdjustments	1300000	usd
CY2021	us-gaap	Income Tax Reconciliation Other Adjustments IncomeTaxReconciliationOtherAdjustments	-400000	usd
CY2023	us-gaap	Income Tax Reconciliation Change In Deferred Tax Assets Valuation Allowance IncomeTaxReconciliationChangeInDeferredTaxAssetsValuationAllowance	10000000.0	usd
CY2022	us-gaap	Income Tax Reconciliation Change In Deferred Tax Assets Valuation Allowance IncomeTaxReconciliationChangeInDeferredTaxAssetsValuationAllowance	8900000	usd
CY2021	us-gaap	Income Tax Reconciliation Change In Deferred Tax Assets Valuation Allowance IncomeTaxReconciliationChangeInDeferredTaxAssetsValuationAllowance	14400000	usd
CY2023	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	168900000	usd
CY2022	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	49600000	usd
CY2021	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	39900000	usd
CY2020Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	36600000	usd
CY2021	us-gaap	Unrecognized Tax Benefits Increases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromPriorPeriodTaxPositions	400000	usd
CY2021	us-gaap	Unrecognized Tax Benefits Increases Resulting From Current Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromCurrentPeriodTaxPositions	9800000	usd
CY2021Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	46800000	usd
CY2022	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsDecreasesResultingFromPriorPeriodTaxPositions	900000	usd
CY2022	us-gaap	Unrecognized Tax Benefits Increases Resulting From Current Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromCurrentPeriodTaxPositions	6100000	usd
CY2022Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	52000000.0	usd
CY2023	us-gaap	Unrecognized Tax Benefits Increases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromPriorPeriodTaxPositions	800000	usd
CY2023	us-gaap	Unrecognized Tax Benefits Increases Resulting From Current Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromCurrentPeriodTaxPositions	6600000	usd
CY2023Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	59400000	usd
CY2023Q4	us-gaap	Unrecognized Tax Benefits That Would Impact Effective Tax Rate UnrecognizedTaxBenefitsThatWouldImpactEffectiveTaxRate	37000000	usd
CY2022Q4	us-gaap	Unrecognized Tax Benefits That Would Impact Effective Tax Rate UnrecognizedTaxBenefitsThatWouldImpactEffectiveTaxRate	32500000	usd
CY2021Q4	us-gaap	Unrecognized Tax Benefits That Would Impact Effective Tax Rate UnrecognizedTaxBenefitsThatWouldImpactEffectiveTaxRate	29500000	usd
CY2023Q4	dxcm	Unrecognized Tax Benefits Potential Adjustment To Deferred Tax Assets UnrecognizedTaxBenefitsPotentialAdjustmentToDeferredTaxAssets	200000	usd
CY2023	dxcm	Possible Extension Periodof Tax Holiday PossibleExtensionPeriodofTaxHoliday	P3Y
CY2023	dxcm	Preferential Tax Rate Period PreferentialTaxRatePeriod	P10Y
CY2023Q4	us-gaap	Undistributed Earnings Of Foreign Subsidiaries UndistributedEarningsOfForeignSubsidiaries	36500000	usd
CY2023Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Maximum Employee Subscription Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardMaximumEmployeeSubscriptionRate	0.10
CY2023	dxcm	Employee Purchase Price Floor Percentage EmployeePurchasePriceFloorPercentage	0.85
CY2023Q4	dxcm	Employee Stock Purchase Plan Espp Number Of Shares Authorized EmployeeStockPurchasePlanESPPNumberOfSharesAuthorized	6000000.0	shares
CY2023	us-gaap	Stock Issued During Period Shares Conversion Of Convertible Securities StockIssuedDuringPeriodSharesConversionOfConvertibleSecurities	0	shares
CY2022	us-gaap	Stock Issued During Period Shares Conversion Of Convertible Securities StockIssuedDuringPeriodSharesConversionOfConvertibleSecurities	-400000	shares
CY2021	us-gaap	Stock Issued During Period Shares Conversion Of Convertible Securities StockIssuedDuringPeriodSharesConversionOfConvertibleSecurities	-800000	shares
CY2023	dxcm	Shares Received From Exercise Of Note Hedge SharesReceivedFromExerciseOfNoteHedge	12200000	shares
CY2022	dxcm	Shares Received From Exercise Of Note Hedge SharesReceivedFromExerciseOfNoteHedge	300000	shares
CY2021	dxcm	Shares Received From Exercise Of Note Hedge SharesReceivedFromExerciseOfNoteHedge	1000000.0	shares
CY2023	dxcm	Stock Issued During Period Shares Achievement Of Milestone StockIssuedDuringPeriodSharesAchievementOfMilestone	3700000	shares
CY2022	dxcm	Stock Issued During Period Shares Achievement Of Milestone StockIssuedDuringPeriodSharesAchievementOfMilestone	2900000	shares
CY2021	dxcm	Stock Issued During Period Shares Achievement Of Milestone StockIssuedDuringPeriodSharesAchievementOfMilestone	0	shares
CY2023Q2	us-gaap	Treasury Stock Shares Acquired TreasuryStockSharesAcquired	1600000	shares
CY2023Q2	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	188700000	usd
CY2023Q2	us-gaap	Treasury Stock Acquired Average Cost Per Share TreasuryStockAcquiredAverageCostPerShare	118.12
CY2023	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	150800000	usd
CY2022	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	126500000	usd
CY2021	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	113400000	usd
CY2023	us-gaap	Employee Service Share Based Compensation Tax Benefit From Compensation Expense EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense	40000000.0	usd
CY2022	us-gaap	Employee Service Share Based Compensation Tax Benefit From Compensation Expense EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense	43200000	usd
CY2021	us-gaap	Employee Service Share Based Compensation Tax Benefit From Compensation Expense EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense	71100000	usd
CY2023	us-gaap	Number Of Reportable Segments NumberOfReportableSegments	1	segment
CY2023	dxcm	Number Of Primary Geographic Markets NumberOfPrimaryGeographicMarkets	2	primarymarket
CY2023	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	3622300000	usd
CY2023	dxcm	Revenue Percentage RevenuePercentage	1
CY2022	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	2909800000	usd
CY2022	dxcm	Revenue Percentage RevenuePercentage	1
CY2021	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	2448500000	usd
CY2021	dxcm	Revenue Percentage RevenuePercentage	1
CY2023	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	3622300000	usd
CY2023	dxcm	Revenue Percentage RevenuePercentage	1
CY2022	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	2909800000	usd
CY2022	dxcm	Revenue Percentage RevenuePercentage	1
CY2021	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	2448500000	usd
CY2021	dxcm	Revenue Percentage RevenuePercentage	1
CY2023Q4	us-gaap	Noncurrent Assets NoncurrentAssets	1184500000	usd
CY2022Q4	us-gaap	Noncurrent Assets NoncurrentAssets	1135600000	usd
CY2022Q4	us-gaap	Valuation Allowances And Reserves Balance ValuationAllowancesAndReservesBalance	7300000	usd
CY2021Q4	us-gaap	Valuation Allowances And Reserves Balance ValuationAllowancesAndReservesBalance	5400000	usd
CY2020Q4	us-gaap	Valuation Allowances And Reserves Balance ValuationAllowancesAndReservesBalance	7200000	usd
CY2023	us-gaap	Valuation Allowances And Reserves Charged To Cost And Expense ValuationAllowancesAndReservesChargedToCostAndExpense	2000000.0	usd
CY2022	us-gaap	Valuation Allowances And Reserves Charged To Cost And Expense ValuationAllowancesAndReservesChargedToCostAndExpense	2400000	usd
CY2021	us-gaap	Valuation Allowances And Reserves Charged To Cost And Expense ValuationAllowancesAndReservesChargedToCostAndExpense	-1400000	usd
CY2023	dxcm	Sec Schedule1209 Valuation Allowancesand Reserves Deduction Writeoffsand Adjustments SECSchedule1209ValuationAllowancesandReservesDeductionWriteoffsandAdjustments	0	usd
CY2022	dxcm	Sec Schedule1209 Valuation Allowancesand Reserves Deduction Writeoffsand Adjustments SECSchedule1209ValuationAllowancesandReservesDeductionWriteoffsandAdjustments	500000	usd
CY2021	dxcm	Sec Schedule1209 Valuation Allowancesand Reserves Deduction Writeoffsand Adjustments SECSchedule1209ValuationAllowancesandReservesDeductionWriteoffsandAdjustments	500000	usd
CY2023	us-gaap	Valuation Allowances And Reserves Recoveries ValuationAllowancesAndReservesRecoveries	0	usd
CY2022	us-gaap	Valuation Allowances And Reserves Recoveries ValuationAllowancesAndReservesRecoveries	0	usd
CY2021	us-gaap	Valuation Allowances And Reserves Recoveries ValuationAllowancesAndReservesRecoveries	100000	usd
CY2023Q4	us-gaap	Valuation Allowances And Reserves Balance ValuationAllowancesAndReservesBalance	9300000	usd
CY2022Q4	us-gaap	Valuation Allowances And Reserves Balance ValuationAllowancesAndReservesBalance	7300000	usd
CY2021Q4	us-gaap	Valuation Allowances And Reserves Balance ValuationAllowancesAndReservesBalance	5400000	usd

Files In Submission

Name	View Source	Status
dxcm-20231231_cal.xml	Edgar Link	unprocessable
0001093557-24-000021-index-headers.html	Edgar Link	pending
0001093557-24-000021-index.html	Edgar Link	pending
0001093557-24-000021.txt	Edgar Link	pending
0001093557-24-000021-xbrl.zip	Edgar Link	pending
dxcm-20231231.htm	Edgar Link	pending
dxcm-20231231.xsd	Edgar Link	pending
dxcm-20231231_g1.jpg	Edgar Link	pending
dxcm-20231231_g2.jpg	Edgar Link	pending
dxcm-20231231_g3.jpg	Edgar Link	pending
dxcm-20231231_g4.jpg	Edgar Link	pending
dxcm-20231231_g5.jpg	Edgar Link	pending
dxcm12312023ex1012-2015emp.htm	Edgar Link	pending
dxcm12312023ex1013-amended.htm	Edgar Link	pending
dxcm12312023ex1014-amended.htm	Edgar Link	pending
dxcm12312023ex191-procedur.htm	Edgar Link	pending
dxcm12312023ex2101_12312023.htm	Edgar Link	pending
dxcm12312023ex2301_12312023.htm	Edgar Link	pending
dxcm12312023ex45-securitie.htm	Edgar Link	pending
dxcm12312023ex971-compensa.htm	Edgar Link	pending
dxcm12312023exhibit3101.htm	Edgar Link	pending
dxcm12312023exhibit3102.htm	Edgar Link	pending
dxcm12312023exhibit3201.htm	Edgar Link	pending
dxcm12312023exhibit3202.htm	Edgar Link	pending
Financial_Report.xlsx	Edgar Link	pending
MetaLinks.json	Edgar Link	pending
R1.htm	Edgar Link	pending
R10.htm	Edgar Link	pending
R11.htm	Edgar Link	pending
R12.htm	Edgar Link	pending
R13.htm	Edgar Link	pending
R14.htm	Edgar Link	pending
R15.htm	Edgar Link	pending
R16.htm	Edgar Link	pending
R17.htm	Edgar Link	pending
R18.htm	Edgar Link	pending
R19.htm	Edgar Link	pending
R2.htm	Edgar Link	pending
R20.htm	Edgar Link	pending
R21.htm	Edgar Link	pending
R22.htm	Edgar Link	pending
R23.htm	Edgar Link	pending
R24.htm	Edgar Link	pending
R25.htm	Edgar Link	pending
R26.htm	Edgar Link	pending
R27.htm	Edgar Link	pending
dxcm-20231231_def.xml	Edgar Link	unprocessable
dxcm-20231231_lab.xml	Edgar Link	unprocessable
dxcm-20231231_pre.xml	Edgar Link	unprocessable
FilingSummary.xml	Edgar Link	unprocessable
dxcm-20231231_htm.xml	Edgar Link	completed
R28.htm	Edgar Link	pending
R29.htm	Edgar Link	pending
R3.htm	Edgar Link	pending
R30.htm	Edgar Link	pending
R31.htm	Edgar Link	pending
R32.htm	Edgar Link	pending
R33.htm	Edgar Link	pending
R34.htm	Edgar Link	pending
R35.htm	Edgar Link	pending
R36.htm	Edgar Link	pending
R37.htm	Edgar Link	pending
R38.htm	Edgar Link	pending
R39.htm	Edgar Link	pending
R4.htm	Edgar Link	pending
R40.htm	Edgar Link	pending
R41.htm	Edgar Link	pending
R42.htm	Edgar Link	pending
R43.htm	Edgar Link	pending
R44.htm	Edgar Link	pending
R45.htm	Edgar Link	pending
R46.htm	Edgar Link	pending
R47.htm	Edgar Link	pending
R48.htm	Edgar Link	pending
R49.htm	Edgar Link	pending
R5.htm	Edgar Link	pending
R50.htm	Edgar Link	pending
R51.htm	Edgar Link	pending
R52.htm	Edgar Link	pending
R53.htm	Edgar Link	pending
R54.htm	Edgar Link	pending
R55.htm	Edgar Link	pending
R56.htm	Edgar Link	pending
R57.htm	Edgar Link	pending
R58.htm	Edgar Link	pending
R59.htm	Edgar Link	pending
R6.htm	Edgar Link	pending
R60.htm	Edgar Link	pending
R61.htm	Edgar Link	pending
R62.htm	Edgar Link	pending
R63.htm	Edgar Link	pending
R64.htm	Edgar Link	pending
R65.htm	Edgar Link	pending
R66.htm	Edgar Link	pending
R67.htm	Edgar Link	pending
R68.htm	Edgar Link	pending
R69.htm	Edgar Link	pending
R7.htm	Edgar Link	pending
R70.htm	Edgar Link	pending
R71.htm	Edgar Link	pending
R72.htm	Edgar Link	pending
R73.htm	Edgar Link	pending
R74.htm	Edgar Link	pending
R75.htm	Edgar Link	pending
R76.htm	Edgar Link	pending
R77.htm	Edgar Link	pending
R78.htm	Edgar Link	pending
R79.htm	Edgar Link	pending
R8.htm	Edgar Link	pending
R80.htm	Edgar Link	pending
R81.htm	Edgar Link	pending
R82.htm	Edgar Link	pending
R83.htm	Edgar Link	pending
R84.htm	Edgar Link	pending
R9.htm	Edgar Link	pending
report.css	Edgar Link	pending
Show.js	Edgar Link	pending

Create your account

Find Stocks Worth Researching

Deeply Understand Businesses

Value Businesses Intelligently

$DXCM
DEXCOM INC Stock $dxcm

2024 Q1 Form 10-K Financial Statement

#000109355724000021 Filed on February 08, 2024

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$DXCM DEXCOM INC Stock $dxcm

2024 Q1 Form 10-K Financial Statement

#000109355724000021 Filed on February 08, 2024

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$DXCM
DEXCOM INC Stock $dxcm