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Significant Accounting Policies (Details) - USD ($) | 1 Months Ended |
--- | --- | ---
Mar. 31, 2025 | Feb. 28, 2025 | Sep. 30, 2025
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items] |  |  |
Amortized cost of short-term investments |  |  | $ 262,000,000
Fair value of short-term investments |  |  | 262,100,000
Amortized cost of long-term investments |  |  | 143,000,000
Fair value of long-term investments |  |  | 143,214,000
Allowances for credit loss |  |  | $ 0
Proceeds from sale of held-to-maturity securities |  | $ 199,500,000 |
Accumulated Other Comprehensive (Loss) |  |  |
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items] |  |  |
Unrealized loss on available-for-sale investments | $ 81,000 |  |

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