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Non-Marketable Securities - Narrative (Details) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended | 12 Months Ended
--- | --- | --- | ---
Jun. 30, 2025 | Jun. 30, 2024 | Jun. 30, 2025 | Jun. 30, 2024 | Dec. 31, 2024
Non-marketable Securities |  |  |  |  |
Purchase of non-marketable securities |  |  | $ 37,000 | $ 16,900 |
Proceeds from redemptions and sales of non-marketable securities |  |  | 32,429 | 30,769 |
Alternative investments measured using the equity method | $ 0 |  | 0 |  | $ 0
Purchase of convertible preferred stock | 0 | $ 0 | 0 | 400 |
Convertible preferred stock sold |  | 1,000 |  | 1,000 |
Realized gains on sale of stock |  | 100 |  | 100 |
Impairment on convertible preferred stock |  | 3,900 |  | 3,900 |
Equity method investments | 26,800 |  | 26,800 |  | 26,200
Equity method investments without a readily determinable fair value | 1,400 |  | 1,400 |  | 1,800
Unrealized gains (losses) | $ (300) | $ 300 | (15,200) | $ 300 |
Impairment related to equity method investments |  |  | $ 0 |  | $ 0

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