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Financial Instruments - Additional Information (Details)	3 Months Ended	9 Months Ended
	Sep. 30, 2025 USD ($) security	Sep. 30, 2025 USD ($) security	Dec. 31, 2024 USD ($)
Financial Instruments
Interest receivable	$ 794,000	$ 794,000	$ 227,000
Allowance for credit loss	0	0
Available for sales debt securities, current	116,700,000	116,700,000
Available for sales debt securities, non-current	$ 22,500,000	$ 22,500,000
Available-for-sale debt securities, loss position, current, number of positions | security	27	27
Available-for-sale debt securities, loss position, non-current	$ 23,100,000	$ 23,100,000
Four Debt Securities Available For Sale
Financial Instruments
Available-for-sale debt securities, loss position, non-current	$ 5,100,000	$ 5,100,000
Available-for-sale debt securities, loss position, non-current, number of positions | security	3	3
BFTR, LLC
Financial Instruments
Investment percentage (percent)	18.00%	18.00%

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Amount of accumulated unrealized loss on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), in continuous unrealized loss position for 12 months or longer, without allowance for credit loss. Includes beneficial interest in securitized financial asset.

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