Debt Instrument, Convertible, Measurement Period

No definition available.

Name:	ddog_DebtInstrumentConvertibleMeasurementPeriod
Namespace Prefix:	ddog_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	duration

- Definition

Debt instrument, convertible, threshold maximum percentage of product of last reported sale price of common stock.

+ References

No definition available.

+ Details

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Namespace Prefix:	ddog_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Debt instrument, principal amount denomination for conversion into common stock.

+ References

No definition available.

+ Details

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Namespace Prefix:	ddog_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

The number of shares issued in exchange for the original debt being converted in a noncash (or part noncash) transaction. "Part noncash" refers to that portion of the transaction not resulting in cash receipts or payments in the period.

+ References

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+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	duration

- Definition

The price per share of the conversion feature embedded in the debt instrument.

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Namespace Prefix:	us-gaap_
Data Type:	dtr-types:perShareItemType
Balance Type:	na
Period Type:	instant

- Definition

Ratio applied to the conversion of debt instrument into equity with equity shares divided by debt principal amount.

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Data Type:	xbrli:pureItemType
Balance Type:	na
Period Type:	duration

- Definition

Threshold period of specified consecutive trading days within which common stock price to conversion price of convertible debt instrument must exceed threshold percentage for specified number of trading days to trigger conversion feature.

+ References

No definition available.

+ Details

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Balance Type:	na
Period Type:	duration

- Definition

Minimum percentage of common stock price to conversion price of convertible debt instruments to determine eligibility of conversion.

+ References

No definition available.

+ Details

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Namespace Prefix:	us-gaap_
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Balance Type:	na
Period Type:	duration

- Definition

Threshold number of specified trading days that common stock price to conversion price of convertible debt instruments must exceed threshold percentage within a specified consecutive trading period to trigger conversion feature.

+ References

No definition available.

+ Details

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- Definition

Face (par) amount of debt instrument at time of issuance.

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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Effective interest rate for the funds borrowed under the debt agreement considering interest compounding and original issue discount or premium.

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Balance Type:	na
Period Type:	instant

- Definition

Contractual interest rate for funds borrowed, under the debt agreement.

+ References

+ Details

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Period Type:	instant

- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

Percentage of principal amount of debt redeemed.

+ References

No definition available.

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	dtr-types:percentItemType
Balance Type:	na
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- Definition

Amount of principal of debt repaid.

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- Definition

The fair value amount of long-term debt whether such amount is presented as a separate caption or as a parenthetical disclosure. Additionally, this element may be used in connection with the fair value disclosures required in the footnote disclosures to the financial statements. The element may be used in both the balance sheet and disclosure in the same submission.

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Period Type:	instant

- Definition

The cash inflow from the issuance of a long-term debt instrument which can be exchanged for a specified amount of another security, typically the entity's common stock, at the option of the issuer or the holder.

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Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Number of shares issued during the period as a result of the conversion of convertible securities.

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-Topic 470
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Convertible Senior Notes - Additional Information (Details)				12 Months Ended
	Jun. 15, 2025 USD ($) shares	Dec. 12, 2024 USD ($) d $ / shares	Jun. 02, 2020 USD ($) $ / shares	Dec. 31, 2025 USD ($) $ / shares shares	Dec. 31, 2024 USD ($)	Dec. 31, 2023 USD ($)
Debt Instrument [Line Items]
Debt instrument, net proceeds from sale of notes				$ (190,000)	$ 978,881,000	$ 0
2025 Notes
Debt Instrument [Line Items]
Debt instrument, aggregate principal amount			$ 747,500,000
Debt instrument, interest rate			0.125%
Debt instrument, net proceeds from sale of notes			$ 730,200,000
Debt instrument, principal amount denomination used in conversion				$ 100
Initial strike price per share, subject to certain adjustments (in dollars per share) \| $ / shares				$ 92,300
Aggregate principal amount	$ 634,100,000
Class A common stock (in shares) \| shares	1,354,569
Debt instrument, effective interest rate				0.59%
2025 Notes \| Conversion Preceding March 15, 2025, Scenario Two
Debt Instrument [Line Items]
Debt instrument, principal amount denomination used in conversion			$ 1,000
2025 Notes \| Conversion, On or After March 15, 2025
Debt Instrument [Line Items]
Debt instrument, conversion ratio			0.0108338
Initial strike price per share, subject to certain adjustments (in dollars per share) \| $ / shares			$ 92.30
0.00% Convertible Senior Notes Due 2029
Debt Instrument [Line Items]
Debt instrument, aggregate principal amount		$ 1,000,000,000.0
Debt instrument, interest rate		0.00%
Debt instrument, net proceeds from sale of notes		$ 979,100,000
Initial strike price per share, subject to certain adjustments (in dollars per share) \| $ / shares				$ 217,600
Debt instrument, estimated fair value				$ 1,000,000,000.0
Debt instrument, effective interest rate				0.43%
0.00% Convertible Senior Notes Due 2029 \| Redemption, On or After June 20, 2023, and Prior to 31st Scheduled Trading Day
Debt Instrument [Line Items]
Debt instrument, trading days \| d		20
Debt instrument, consecutive trading days \| d		30
Debt instrument, threshold percentage of conversion price		130.00%
Debt instrument redemption price percentage of principal amount redeemed		100.00%
0.00% Convertible Senior Notes Due 2029 \| Conversion Preceding March 15, 2025, Scenario Two
Debt Instrument [Line Items]
Debt instrument, principal amount denomination used in conversion		$ 1,000
Debt instrument, consecutive trading days \| d		10
Debt instrument, convertible, measurement period \| d		5
Debt instrument, convertible, threshold maximum percentage of product of last reported sale price of common stock		98.00%
0.00% Convertible Senior Notes Due 2029 \| Conversion, On or After March 15, 2025
Debt Instrument [Line Items]
Initial strike price per share, subject to certain adjustments (in dollars per share) \| $ / shares		$ 217.60
Debt instrument, trading days \| d		20
0.00% Convertible Senior Notes Due 2029 \| Conversion Preceding March 15, 2025, Scenario One
Debt Instrument [Line Items]
Debt instrument, trading days \| d		20
Debt instrument, consecutive trading days \| d		30
Debt instrument, threshold percentage of conversion price		130.00%
Convertible Debt, 2025 Notes
Debt Instrument [Line Items]
Settlement of common stock in connection with the 2025 Convertible Senior Notes (in shares) \| shares				1,354,569
Capped Call
Debt Instrument [Line Items]
Settlement of common stock in connection with the 2025 Convertible Senior Notes (in shares) \| shares				1,360,738