Summary of Accounting Policies - Narrative (Details) $ / shares in Units, $ in Thousands			3 Months Ended
	Mar. 09, 2025 USD ($) $ / shares	Feb. 06, 2025 USD ($) component	Jun. 30, 2025 USD ($)	Mar. 31, 2025 USD ($) employee $ / shares	Dec. 31, 2024 $ / shares
Restructuring Cost and Reserve [Line Items]
Common stock, par value (in dollars per share) | $ / shares	$ 0.001			$ 0.001	$ 0.001
Gain (loss) on contract termination	$ 65,534
Payments for merger related costs	$ 8,100
Partnership agreement, minimum payment		$ 75,000
Partnership agreement, upfront payment		$ 100,000
Expected number of positions eliminated | employee				450
Restructuring costs				$ 18,874
Number of variable components | component		2
Partnership agreement, payment term		5 years
Minimum | Forecast
Restructuring Cost and Reserve [Line Items]
Restructuring costs			$ 3,000
Maximum | Forecast
Restructuring Cost and Reserve [Line Items]
Restructuring costs			$ 4,000
Common Class A
Restructuring Cost and Reserve [Line Items]
Common stock, par value (in dollars per share) | $ / shares	$ 0.7926
Rocket Stock
Restructuring Cost and Reserve [Line Items]
Common stock, par value (in dollars per share) | $ / shares	$ 0.00001