Condensed Consolidated Statements of Redeemable Convertible Preferred Stock, Common Stock and Stockholders' Equity - USD ($) $ in Thousands	Total	Excercise Of Warrants [Member]	IPO [Member]	Treasury Stock [Member]	Additional Paid-in Capital [Member]	Additional Paid-in Capital [Member] Excercise Of Warrants [Member]	Additional Paid-in Capital [Member] IPO [Member]	Accumulated Deficit [Member]	Accumulated Other Comprehensive (Loss) Income [Member]	Redeemable Convertible Preferred Stock [Member]	Redeemable Convertible Preferred Stock [Member] Common Stock [Member]	Redeemable Convertible Preferred Stock [Member] Common Stock [Member] Series G-3 Preferred Stock [Member]	Redeemable Convertible Preferred Stock [Member] Common Stock [Member] Series G-4 Preferred Stock [Member]	Redeemable Convertible Preferred Stock [Member] Common Stock [Member] Series G-5 Preferred Stock [Member]	Class A Voting Stock [Member]	Class A Voting Stock [Member] Common Stock [Member]	Class A Voting Stock [Member] Common Stock [Member] Excercise Of Warrants [Member]	Class A Voting Stock [Member] Common Stock [Member] IPO [Member]	Class B Voting Stock [Member] Common Stock [Member]	Non-voting Common Stock [Member] Common Stock [Member]
Beginning Balance, Shares at Dec. 31, 2023											63,525,953
Beginning Balance at Dec. 31, 2023											$ 1,105,543
Beginning Balance, Shares at Dec. 31, 2023																58,367,961				5,205,802
Beginning Balance, Shares at Dec. 31, 2023				(145,466)
Beginning Balance at Dec. 31, 2023	$ (1,382,163)			$ (3,602)	$ 18,345			$ (1,396,917)	$ 5							$ 6				$ 0
Issuance of Series Preferred Stock												$ 3,809	$ 611	$ 199,750
Issuance of Series Preferred Stock, Shares												66,465	10,666	3,489,981
Common stock issued in connection with business combination	344				344															$ 0
Common stock issued in connection with business combination, Shares																				9,141
Dividends											33,669
Dividends	(39,347)
Dividends	(39,347)							(39,347)
Issuance of common stock		$ (173)	$ 369,604			$ (173)	$ 369,603										$ 0	$ 1
Issuance of common stock (Shares)																	109,459	11,100,000
Conversion of redeemable convertible preferred stock to common stock in connection with initial public offering											$ (1,343,382)
Conversion of redeemable convertible preferred stock to common stock in connection with initial public offering (Shares)											(67,093,065)
Conversion of redeemable convertible preferred stock to common stock in connection with initial public offering	1,348,809				1,357,562			(8,761)								$ 7			$ 1
Conversion of redeemable convertible preferred stock to common stock in connection with initial public offering (Shares)																71,976,178			5,043,789
Conversion of non-voting common stock to Class A common stock	0				(1)											$ 1				$ 0
Conversion of non-voting common stock to Class A common stock (Shares)																5,069,477				(5,214,943)
Issuance of common stock upon settlement of restricted stock units, net	(70,082)				(70,082)											$ 0
Issuance of common stock upon settlement of restricted stock units, net (Shares)																2,651,848
Stock-based compensation expense	488,313				488,313
Foreign currency translation adjustment	(99)								(99)
Net loss	(616,955)							(616,955)
Ending Balance at Jun. 30, 2024	98,251			$ (3,602)	2,163,911			(2,061,980)	(94)							$ 15			$ 1
Ending Balance, Shares at Jun. 30, 2024																149,274,923			5,043,789
Ending Balance, Shares at Jun. 30, 2024				(145,466)
Beginning Balance, Shares at Mar. 31, 2024											63,603,084
Beginning Balance at Mar. 31, 2024											$ 1,134,802
Beginning Balance, Shares at Mar. 31, 2024																58,367,961				5,214,943
Beginning Balance, Shares at Mar. 31, 2024				(145,466)
Beginning Balance at Mar. 31, 2024	(1,474,425)			$ (3,602)	18,689			(1,489,467)	(51)							$ 6				$ 0
Issuance of Series Preferred Stock														$ 199,750
Issuance of Series Preferred Stock, Shares														3,489,981
Dividends											8,830
Dividends	(11,540)
Dividends	(11,540)							(11,540)
Issuance of common stock		$ (173)	$ 369,604			$ (173)	$ 369,603										$ 0	$ 1
Issuance of common stock (Shares)																	109,459	11,100,000
Conversion of redeemable convertible preferred stock to common stock in connection with initial public offering											$ (1,343,382)
Conversion of redeemable convertible preferred stock to common stock in connection with initial public offering (Shares)											(67,093,065)
Conversion of redeemable convertible preferred stock to common stock in connection with initial public offering	1,348,809				1,357,562			(8,761)								$ 7			$ 1
Conversion of redeemable convertible preferred stock to common stock in connection with initial public offering (Shares)																71,976,178			5,043,789
Conversion of non-voting common stock to Class A common stock	0				(1)											$ 1				$ 0
Conversion of non-voting common stock to Class A common stock (Shares)																5,069,477				(5,214,943)
Issuance of common stock upon settlement of restricted stock units, net	(70,082)				(70,082)											$ 0
Issuance of common stock upon settlement of restricted stock units, net (Shares)																2,651,848
Stock-based compensation expense	488,313				488,313
Foreign currency translation adjustment	(43)								(43)
Net loss	(552,212)							(552,212)
Ending Balance at Jun. 30, 2024	$ 98,251			$ (3,602)	2,163,911			(2,061,980)	(94)							$ 15			$ 1
Ending Balance, Shares at Jun. 30, 2024																149,274,923			5,043,789
Ending Balance, Shares at Jun. 30, 2024				(145,466)
Beginning Balance, Shares at Dec. 31, 2024										0
Beginning Balance, Shares at Dec. 31, 2024																157,076,972			5,043,789
Beginning Balance, Shares at Dec. 31, 2024	145,466			(145,466)
Beginning Balance at Dec. 31, 2024	$ 56,339			$ (3,602)	2,210,664			(2,150,834)	94							$ 16			$ 1
Common stock issued in connection with business combination	310,320				310,320											$ 0
Common stock issued in connection with business combination, Shares																5,112,416
Dividends	0
Conversion of redeemable convertible preferred stock to common stock in connection with initial public offering (Shares)															71,976,178
Issuance of common stock upon settlement of restricted stock units, net	(0)				(1)											$ 1
Issuance of common stock upon settlement of restricted stock units, net (Shares)																6,391,439
Stock-based compensation expense	45,429				45,429
Foreign currency translation adjustment	8,354								8,354
Net loss	(110,880)							(110,880)
Ending Balance at Jun. 30, 2025	$ 309,562			$ (3,602)	2,566,412			(2,261,714)	8,448							$ 17			$ 1
Ending Balance, Shares at Jun. 30, 2025																168,580,827			5,043,789
Ending Balance, Shares at Jun. 30, 2025										0
Ending Balance, Shares at Jun. 30, 2025	145,466			(145,466)
Beginning Balance, Shares at Mar. 31, 2025																167,989,074			5,043,789
Beginning Balance, Shares at Mar. 31, 2025				(145,466)
Beginning Balance at Mar. 31, 2025	$ 326,194			$ (3,602)	2,543,957			(2,218,871)	4,692							$ 17			$ 1
Dividends	0
Issuance of common stock upon settlement of restricted stock units, net					(0)											$ 0
Issuance of common stock upon settlement of restricted stock units, net (Shares)																591,753
Stock-based compensation expense	22,455				22,455
Foreign currency translation adjustment	3,756								3,756
Net loss	(42,843)							(42,843)
Ending Balance at Jun. 30, 2025	$ 309,562			$ (3,602)	$ 2,566,412			$ (2,261,714)	$ 8,448							$ 17			$ 1
Ending Balance, Shares at Jun. 30, 2025																168,580,827			5,043,789
Ending Balance, Shares at Jun. 30, 2025										0
Ending Balance, Shares at Jun. 30, 2025	145,466			(145,466)