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Amount, before allowance for credit loss, of right to consideration in exchange for good or service transferred to customer, when right is conditioned on something other than passage of time.

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Amount of obligation to transfer good or service to customer for which consideration has been received or is receivable.

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Amount of obligation to transfer good or service to customer for which consideration has been received or is receivable, classified as current.

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Revenue - Narrative (Details) - USD ($) shares in Thousands, $ in Thousands		1 Months Ended	3 Months Ended			9 Months Ended		12 Months Ended
	Mar. 31, 2025	Mar. 31, 2025	Sep. 30, 2025	Mar. 31, 2025	Sep. 30, 2024	Sep. 30, 2025	Sep. 30, 2024	Dec. 31, 2024
Concentration Risk [Line Items]
Revenue recognized, customer commitments			98.00%		96.00%	98.00%	95.00%
Issuance of common stock for contract incentive				$ 350,000
Deferred revenue, current			$ 1,107,580			$ 1,107,580		$ 768,927
Deferred revenue, non-current			4,228,222			$ 4,228,222		3,294,977
Agreement contract term						60 days
Deferred revenue			5,300,000			$ 5,300,000		$ 4,100,000
Deferred revenue recognized						659,000	$ 190,000
Remaining performance obligation, amount			$ 50,000,000			$ 50,000,000
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2025-10-01
Concentration Risk [Line Items]
Remaining performance obligation, percentage			42.00%			42.00%
Remaining performance obligation, expected timing of satisfaction			24 months			24 months
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2027-10-01
Concentration Risk [Line Items]
Remaining performance obligation, percentage			39.00%			39.00%
Remaining performance obligation, expected timing of satisfaction			2 years			2 years
Maximum
Concentration Risk [Line Items]
Agreement contract term						360 days
Common Class A
Concentration Risk [Line Items]
Issuance of common stock for contract incentive	$ 350,000					$ 350,000
Customer A \| Accounts Receivable \| Customer Concentration Risk
Concentration Risk [Line Items]
Concentration risk, percentage						35.00%		66.00%
Customer C \| Accounts Receivable \| Customer Concentration Risk
Concentration Risk [Line Items]
Concentration risk, percentage						31.00%
Customer D \| Accounts Receivable \| Customer Concentration Risk
Concentration Risk [Line Items]
Concentration risk, percentage						10.00%
Customer E \| Accounts Receivable \| Customer Concentration Risk
Concentration Risk [Line Items]
Concentration risk, percentage						10.00%
OpenAI OpCo, LLC
Concentration Risk [Line Items]
Contract with customer, asset	$ 11,900,000	$ 11,900,000		$ 11,900,000
Issuance of common stock for contract incentive (in shares)		8,750
OpenAI OpCo, LLC \| Prepaid Expenses and Other Current Assets
Concentration Risk [Line Items]
Deferred revenue, current			$ 52,000			$ 52,000
OpenAI OpCo, LLC \| Warrant assets
Concentration Risk [Line Items]
Deferred revenue, non-current			$ 298,000			$ 298,000