Debt - Narrative (Details) $ / shares in Units, $ in Thousands					1 Months Ended			3 Months Ended		9 Months Ended
	Aug. 18, 2025 USD ($) day $ / shares shares	Mar. 04, 2025 USD ($)	Jan. 29, 2024 USD ($) shares	Jan. 10, 2024 USD ($)	Jul. 31, 2024 USD ($)	Jan. 31, 2024 USD ($)	Jul. 31, 2022 USD ($)	Sep. 30, 2025 USD ($)	Jun. 30, 2024 USD ($)	Sep. 30, 2025 USD ($)	Sep. 30, 2024 USD ($)	Dec. 31, 2024 USD ($)	Dec. 31, 2023 USD ($)	Dec. 12, 2019 USD ($)
Debt Instrument [Line Items]
Amortization of debt discount and issuance costs										$ 243	$ 0
Purchase of capped call transactions										36,777	$ 0
Total long-term debt								$ 334,827		334,827		$ 0
Proceeds from guarantor			$ 10,000			$ 10,000
Class A Common Stock
Debt Instrument [Line Items]
Shares issued for services during period (in shares) | shares			3,487,278
Convertible Senior Notes Due 2030 | Level 2 | Estimate of Fair Value Measurement
Debt Instrument [Line Items]
Convertible debt, fair value disclosures								$ 368,000		$ 368,000
Pershing LLC Loan Agreement
Debt Instrument [Line Items]
Debt instrument, credit support fee				$ 148
Convertible Debt | Capped Calls
Debt Instrument [Line Items]
Purchase of capped call transactions	$ 36,800
Derivative, initial strike price (in dollars per share) | $ / shares	$ 13.1125
Derivative, initial cap price (in dollars per share) | $ / shares	$ 20.9800
Derivative, underlying investment, shares (in shares) | shares	26,310,770
Convertible Debt | Convertible Senior Notes Due 2030
Debt Instrument [Line Items]
Debt instrument, face amount	$ 345,000
Debt instrument, interest rate	2.50%
Debt instrument, redemption price, percentage	100.00%
Debt instrument minimum outstanding principal amount after redemption	$ 75,000
Debt instrument, convertible, conversion ratio	0.0762631
Debt instrument, convertible, conversion price (in dollars per share) | $ / shares	$ 13.1125
Interest rate, effective percentage								3.09%		3.09%
Interest expense, debt								$ 1,300		$ 1,300
Amortization of debt discount and issuance costs								200		200
Purchase of capped call transactions	$ 36,800
Convertible Debt | Convertible Senior Notes Due 2030 | Debt Conversion Terms One
Debt Instrument [Line Items]
Debt instrument, convertible, threshold trading days | day	20
Debt instrument, convertible, threshold consecutive trading days | day	30
Debt instrument, convertible, threshold percentage of stock price trigger	130.00%
Convertible Debt | Convertible Senior Notes Due 2030 | Debt Conversion Terms Two
Debt Instrument [Line Items]
Debt instrument, convertible, threshold trading days | day	5
Debt instrument, convertible, threshold consecutive trading days | day	10
Debt instrument, convertible, threshold percentage of stock price trigger	98.00%
Line of Credit | Revolving Credit Facility
Debt Instrument [Line Items]
Debt instrument, interest rate		6.00%
Line of credit facility, maximum borrowing capacity		$ 40,000
Basis spread on variable rate		2.75%
Outstanding debt								$ 0		$ 0
Line of Credit | Live Oak Loan Agreement | Secured Debt
Debt Instrument [Line Items]
Line of credit facility, maximum borrowing capacity														$ 12,000
Line of Credit | Live Oak Second Amended and Restated Loan Agreement, Facility Two | Secured Debt
Debt Instrument [Line Items]
Line of credit facility, maximum borrowing capacity							$ 8,000
Line of Credit | Live Oak Second Amended and Restated Loan Agreement | Secured Debt
Debt Instrument [Line Items]
Total long-term debt													$ 8,000
Principal payment					$ 3,000				$ 5,000
Line of Credit | Live Oak Second Amended and Restated Loan Agreement | Secured Debt | Minimum
Debt Instrument [Line Items]
Debt instrument, interest rate							5.00%
Basis spread on variable rate							2.00%
Line of Credit | Pershing LLC Loan Agreement | Secured Debt
Debt Instrument [Line Items]
Line of credit facility, maximum borrowing capacity				$ 10,000
Basis spread on variable rate				0.90%
Debt instrument, variable rate, floor				5.50%