Fair Value Measurements - Quantitative Information About The Significant Unobservable Inputs (Details) - Level 3	9 Months Ended	12 Months Ended
	Sep. 30, 2025 USD ($)	Dec. 31, 2024 USD ($)
Discount rate | Minimum
Fair Value Measurement Inputs and Valuation Techniques
Probability (as a percent)	0.081	0.075
Basis point for adjustment of discount rate for non-hybrid instruments	1
Fair value increase (decrease) for non-hybrid investments	$ 174,000
Discount rate | Maximum
Fair Value Measurement Inputs and Valuation Techniques
Probability (as a percent)	0.26	0.2753
Basis point for adjustment of discount rate for non-hybrid instruments	1
Fair value increase (decrease) for non-hybrid investments	$ 176,000
Discount rate | Weighted average
Fair Value Measurement Inputs and Valuation Techniques
Probability (as a percent)	0.26	0.2753
Streeterville Note | Discount rate | Minimum
Fair Value Measurement Inputs and Valuation Techniques
Probability (as a percent)	8.07	7.46
Basis point for adjustment of discount rate	1
Fair value increase (decrease)	$ 287,000
Streeterville Note | Discount rate | Maximum
Fair Value Measurement Inputs and Valuation Techniques
Probability (as a percent)	27.89	25.53
Basis point for adjustment of discount rate	1
Fair value increase (decrease)	$ 287,000
Streeterville Note | Discount rate | Weighted average
Fair Value Measurement Inputs and Valuation Techniques
Probability (as a percent)	27.89	25.53
Streeterville Note | Sale Proceeds | Minimum
Fair Value Measurement Inputs and Valuation Techniques
Amount of comparable TDPRV	$ 67,500,000	$ 67,500,000
Fair value increase (decrease)	460,000
Streeterville Note | Sale Proceeds | Maximum
Fair Value Measurement Inputs and Valuation Techniques
Amount of comparable TDPRV	350,000,000	350,000,000
Fair value increase (decrease)	2,600,000
Streeterville Note | Sale Proceeds | Weighted average
Fair Value Measurement Inputs and Valuation Techniques
Amount of comparable TDPRV	$ 100,000,000	$ 100,000,000
Streeterville Note | Timing of Cash Flows | Minimum
Fair Value Measurement Inputs and Valuation Techniques
Probability (as a percent)	0	0
Fair value increase (decrease)	$ 270,000
Streeterville Note | Timing of Cash Flows | Maximum
Fair Value Measurement Inputs and Valuation Techniques
Probability (as a percent)	85	85
Fair value increase (decrease)	$ 1,900,000
Convertible Promissory Notes | Discount rate
Fair Value Measurement Inputs and Valuation Techniques
Probability (as a percent)	0.2273
Convertible Promissory Notes | Discount rate | Minimum
Fair Value Measurement Inputs and Valuation Techniques
Probability (as a percent)	0.081
Basis point for adjustment of discount rate	1
Fair value increase (decrease)	$ 8,000
Convertible Promissory Notes | Discount rate | Maximum
Fair Value Measurement Inputs and Valuation Techniques
Probability (as a percent)	0.2273
Basis point for adjustment of discount rate	1
Fair value increase (decrease)	$ 8,000