CONDENSED CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Mar. 31, 2026	Dec. 31, 2025
Current assets
Cash and cash equivalents	$ 224,076	$ 458,932
Short-term investments	449,509	304,908
Accounts receivable	21,962	32,940
Unbilled Receivables and Contract Assets	51,159	41,529
Prepaid and other current assets	23,493	11,491
Due from related parties	$ 4,182	$ 4,580
Other Receivable, after Allowance for Credit Loss, Current, Related Party [Extensible Enumeration]	Related Party [Member]	Related Party [Member]
Total current assets	$ 774,381	$ 854,380
Long-term investments	270,438	261,458
Restricted cash	4,210	3,698
Property and equipment, net	73,381	50,105
Operating lease right-of-use assets	23,468	22,696
Other long-term assets	50,134	18,934
Total assets	1,196,012	1,211,271
Current liabilities
Accounts payable	10,036	3,363
Accrued liabilities	75,013	51,217
Due to related parties	$ 4,299	$ 4,225
Other Liability, Current, Related Party [Extensible Enumeration]	Related Party [Member]	Related Party [Member]
Total current liabilities	$ 89,348	$ 58,805
Long-term deferred revenue	18,045	15,153
Long-term operating lease liabilities	24,789	20,887
Warrant liabilities	17,898	274,166
Total liabilities	150,080	369,011
Mezzanine equity
Mezzanine equity	2,431,909	2,066,555
Accumulated deficit	(1,402,562)	(1,236,345)
Accumulated other comprehensive income (loss)	26	(117)
Additional paid-in capital	16,559	12,167
Total members' deficit	(1,385,977)	(1,224,295)
Total liabilities, mezzanine equity, and member's deficit	1,196,012	1,211,271
Class A Common Units
Mezzanine equity
Mezzanine equity	1,800	1,800
Class B Common Units
Mezzanine equity
Mezzanine equity	93,541	93,353
Series A Preferred Stock
Mezzanine equity
Mezzanine equity	218,408	218,408
Series A-1 Preferred Stock
Mezzanine equity
Mezzanine equity	21,477	21,477
Series B Preferred Stock
Mezzanine equity
Mezzanine equity	101,382	101,382
Series C Preferred Stock
Mezzanine equity
Mezzanine equity	265,797	265,797
Series C-1 Preferred Units
Mezzanine equity
Mezzanine equity	1,051,881	686,715
Series D Preferred Stock
Mezzanine equity
Mezzanine equity	$ 677,623	$ 677,623

Carrying value as of the balance sheet date of liabilities incurred (and for which invoices have typically been received) and payable to vendors for goods and services received that are used in an entity's business. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).

Name:	us-gaap_AccountsPayableCurrent
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Amount, after allowance for credit loss, of right to consideration from customer for product sold and service rendered in normal course of business, classified as current.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 310
-SubTopic 10
-Name Accounting Standards Codification
-Section 45
-Paragraph 2
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147481990/310-10-45-2