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Stock based compensation expense post combination.

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Face amount or stated value per share of common stock.

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The maximum number of common shares permitted to be issued by an entity's charter and bylaws.

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Amount of cost not yet recognized for nonvested award under share-based payment arrangement.

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Weighted-average period over which cost not yet recognized is expected to be recognized for award under share-based payment arrangement, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

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Face amount or stated value per share of preferred stock nonredeemable or redeemable solely at the option of the issuer.

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The maximum number of nonredeemable preferred shares (or preferred stock redeemable solely at the option of the issuer) permitted to be issued by an entity's charter and bylaws.

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The number of non-vested equity-based payment instruments, excluding stock (or unit) options, that validly exist and are outstanding as of the balance sheet date.

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Amount of accumulated difference between fair value of underlying shares on dates of exercise and exercise price on options exercised (or share units converted) into shares.

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The weighted average grant-date fair value of options granted during the reporting period as calculated by applying the disclosed option pricing methodology.

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An excess of the fair value of the modified award over the fair value of the award immediately before the modification.

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Purchase price of common stock expressed as a percentage of its fair value.

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Stockholders' Equity - Additional Information (Details) $ / shares in Units, $ in Millions	3 Months Ended
	Mar. 31, 2025 USD ($) Vote $ / shares shares	Mar. 31, 2024 USD ($) $ / shares	Dec. 31, 2024 $ / shares shares	Sep. 30, 2024 USD ($) shares
Class Of Stock [Line Items]
Preferred Stock, Shares Authorized	10,000,000		10,000,000
Preferred Stock, Par or Stated Value Per Share \| $ / shares	$ 0.00001		$ 0.00001
Conversion, percent threshold	10.00%
Common stock reserved for issuance (in shares)	111,268,530		98,140,408
Intrinsic value of options exercised \| $	$ 61.5	$ 52.9
Weighted average grant date fair value per share of options granted \| $ / shares	$ 0	$ 0
Unrecognized stock-based compensation expense \| $	$ 653.1
Unrecognized stock-based compensation expense, weighted-average period	1 year 9 months 18 days
Restricted Common Stock [Member]
Class Of Stock [Line Items]
Post-combination stock-based compensation expense \| $				$ 7.9
Unvested shares	26,076,807		20,555,882
Restricted Common Stock [Member] \| WarpStream Labs, Inc. [Member]
Class Of Stock [Line Items]
Unvested shares	397,436
Common Class A [Member]
Class Of Stock [Line Items]
Common Stock, Shares Authorized	1,000,000,000		1,000,000,000
Common stock, voting rights, votes per share \| Vote	1
Common Stock, Par Value \| $ / shares	$ 0.00001		$ 0.00001
Common Class A [Member] \| Restricted Common Stock [Member] \| WarpStream Labs, Inc. [Member]
Class Of Stock [Line Items]
Shares issued				397,436
Common Class B [Member]
Class Of Stock [Line Items]
Common Stock, Shares Authorized	500,000,000		500,000,000
Common stock, voting rights, votes per share \| Vote	10
Common Stock, Par Value \| $ / shares	$ 0.00001		$ 0.00001
2021 Plan [Member] \| Common Class A [Member]
Class Of Stock [Line Items]
Common stock reserved for issuance (in shares)	25,812,876
2021 Employee Stock Purchase Plan [Member]
Class Of Stock [Line Items]
Common stock reserved for issuance (in shares)	12,708,562		10,139,193
Incremental stock-based compensation expense \| $	$ 4.3
2021 Employee Stock Purchase Plan [Member] \| Common Class A [Member]
Class Of Stock [Line Items]
Common stock reserved for issuance (in shares)	5,162,575
Purchase price of common stock expressed as a percentage of its fair value	85.00%