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Equity and Other Investments and Fair Value Measurements - Schedule of Available-for-Sale Securities Measured at Fair Value on a Recurring Basis (Details) - USD ($) $ in Thousands	Sep. 30, 2025	Dec. 31, 2024
Recurring basis
Assets
Total assets measured at estimated fair value	$ 899,581	$ 765,285
Recurring basis | Money market funds
Assets
Total assets measured at estimated fair value	442,266	289,441
Recurring basis | Equity investments and Money market funds | ISP Fund LP
Assets
Total assets measured at estimated fair value	115,566	255,658
Recurring basis | Term loan investment | Armata July 2023 Term Loan
Assets
Total assets measured at estimated fair value	32,691	30,197
Recurring basis | Term loan investment | Armata March 2024 Term Loan
Assets
Total assets measured at estimated fair value	10,849	39,275
Recurring basis | Term loan investment | Armata March 2025 Term Loan
Assets
Total assets measured at estimated fair value	42,737
Recurring basis | Term loan investment | Armata August 2025 Term Loan
Assets
Total assets measured at estimated fair value	15,402
Recurring basis | Quoted Price in Active Markets for Identical Assets, Level 1
Assets
Total assets measured at estimated fair value	629,862	529,393
Recurring basis | Quoted Price in Active Markets for Identical Assets, Level 1 | Money market funds
Assets
Total assets measured at estimated fair value	442,266	289,441
Recurring basis | Quoted Price in Active Markets for Identical Assets, Level 1 | Equity investments and Money market funds | ISP Fund LP
Assets
Total assets measured at estimated fair value	112,867	193,560
Recurring basis | Quoted Price in Active Markets for Identical Assets, Level 1 | Term loan investment | Armata July 2023 Term Loan
Assets
Total assets measured at estimated fair value	0	0
Recurring basis | Quoted Price in Active Markets for Identical Assets, Level 1 | Term loan investment | Armata March 2024 Term Loan
Assets
Total assets measured at estimated fair value	0	0
Recurring basis | Quoted Price in Active Markets for Identical Assets, Level 1 | Term loan investment | Armata March 2025 Term Loan
Assets
Total assets measured at estimated fair value	0
Recurring basis | Quoted Price in Active Markets for Identical Assets, Level 1 | Term loan investment | Armata August 2025 Term Loan
Assets
Total assets measured at estimated fair value	0
Recurring basis | Significant Other Observable Inputs, Level 2
Assets
Total assets measured at estimated fair value	7,848	5,901
Recurring basis | Significant Other Observable Inputs, Level 2 | Money market funds
Assets
Total assets measured at estimated fair value	0	0
Recurring basis | Significant Other Observable Inputs, Level 2 | Equity investments and Money market funds | ISP Fund LP
Assets
Total assets measured at estimated fair value	0	0
Recurring basis | Significant Other Observable Inputs, Level 2 | Term loan investment | Armata July 2023 Term Loan
Assets
Total assets measured at estimated fair value	0	0
Recurring basis | Significant Other Observable Inputs, Level 2 | Term loan investment | Armata March 2024 Term Loan
Assets
Total assets measured at estimated fair value	0	0
Recurring basis | Significant Other Observable Inputs, Level 2 | Term loan investment | Armata March 2025 Term Loan
Assets
Total assets measured at estimated fair value	0
Recurring basis | Significant Other Observable Inputs, Level 2 | Term loan investment | Armata August 2025 Term Loan
Assets
Total assets measured at estimated fair value	0
Recurring basis | Significant Unobservable Inputs, Level 3
Assets
Total assets measured at estimated fair value	261,871	229,991
Recurring basis | Significant Unobservable Inputs, Level 3 | Money market funds
Assets
Total assets measured at estimated fair value	0	0
Recurring basis | Significant Unobservable Inputs, Level 3 | Equity investments and Money market funds | ISP Fund LP
Assets
Total assets measured at estimated fair value	2,699	62,098
Recurring basis | Significant Unobservable Inputs, Level 3 | Term loan investment | Armata July 2023 Term Loan
Assets
Total assets measured at estimated fair value	32,691	30,197
Recurring basis | Significant Unobservable Inputs, Level 3 | Term loan investment | Armata March 2024 Term Loan
Assets
Total assets measured at estimated fair value	10,849	39,275
Recurring basis | Significant Unobservable Inputs, Level 3 | Term loan investment | Armata March 2025 Term Loan
Assets
Total assets measured at estimated fair value	42,737
Recurring basis | Significant Unobservable Inputs, Level 3 | Term loan investment | Armata August 2025 Term Loan
Assets
Total assets measured at estimated fair value	15,402
Nonrecurring basis | Debt
Fair Value Measurements
Total fair value of debt		473,566
Nonrecurring basis | Quoted Price in Active Markets for Identical Assets, Level 1 | Debt
Fair Value Measurements
Total fair value of debt		0
Nonrecurring basis | Significant Other Observable Inputs, Level 2 | Debt
Fair Value Measurements
Total fair value of debt		473,566
Nonrecurring basis | Significant Unobservable Inputs, Level 3 | Debt
Fair Value Measurements
Total fair value of debt		0
Nonrecurring basis | 2025 Notes | Debt
Fair Value Measurements
2025 Notes		222,353
Nonrecurring basis | 2025 Notes | Quoted Price in Active Markets for Identical Assets, Level 1 | Debt
Fair Value Measurements
2025 Notes		0
Nonrecurring basis | 2025 Notes | Significant Other Observable Inputs, Level 2 | Debt
Fair Value Measurements
2025 Notes		222,353
Nonrecurring basis | 2025 Notes | Significant Unobservable Inputs, Level 3 | Debt
Fair Value Measurements
2025 Notes		0
Nonrecurring basis | 2028 Notes | Debt
Fair Value Measurements
2028 Notes	257,838	251,213
Nonrecurring basis | 2028 Notes | Quoted Price in Active Markets for Identical Assets, Level 1 | Debt
Fair Value Measurements
2028 Notes	0	0
Nonrecurring basis | 2028 Notes | Significant Other Observable Inputs, Level 2 | Debt
Fair Value Measurements
2028 Notes	257,838	251,213
Nonrecurring basis | 2028 Notes | Significant Unobservable Inputs, Level 3 | Debt
Fair Value Measurements
2028 Notes	0	0
Armata | Recurring basis | Convertible debt investment
Assets
Total assets measured at estimated fair value	56,916	42,095
Armata | Recurring basis | Equity investment | Common stock
Assets
Total assets measured at estimated fair value	74,729	46,392
Armata | Recurring basis | Equity investment | Warrants
Assets
Total assets measured at estimated fair value	7,848	5,901
Armata | Recurring basis | Quoted Price in Active Markets for Identical Assets, Level 1 | Convertible debt investment
Assets
Total assets measured at estimated fair value	0	0
Armata | Recurring basis | Quoted Price in Active Markets for Identical Assets, Level 1 | Equity investment | Common stock
Assets
Total assets measured at estimated fair value	74,729	46,392
Armata | Recurring basis | Quoted Price in Active Markets for Identical Assets, Level 1 | Equity investment | Warrants
Assets
Total assets measured at estimated fair value	0	0
Armata | Recurring basis | Significant Other Observable Inputs, Level 2 | Convertible debt investment
Assets
Total assets measured at estimated fair value	0	0
Armata | Recurring basis | Significant Other Observable Inputs, Level 2 | Equity investment | Common stock
Assets
Total assets measured at estimated fair value	0	0
Armata | Recurring basis | Significant Other Observable Inputs, Level 2 | Equity investment | Warrants
Assets
Total assets measured at estimated fair value	7,848	5,901
Armata | Recurring basis | Significant Unobservable Inputs, Level 3 | Convertible debt investment
Assets
Total assets measured at estimated fair value	56,916	42,095
Armata | Recurring basis | Significant Unobservable Inputs, Level 3 | Equity investment | Common stock
Assets
Total assets measured at estimated fair value	0	0
Armata | Recurring basis | Significant Unobservable Inputs, Level 3 | Equity investment | Warrants
Assets
Total assets measured at estimated fair value	0	0
InCarda | Recurring basis | Equity investment | Warrants
Assets
Total assets measured at estimated fair value	135	59
InCarda | Recurring basis | Quoted Price in Active Markets for Identical Assets, Level 1 | Equity investment | Warrants
Assets
Total assets measured at estimated fair value	0	0
InCarda | Recurring basis | Significant Other Observable Inputs, Level 2 | Convertible debt investment
Assets
Total assets measured at estimated fair value		0
InCarda | Recurring basis | Significant Other Observable Inputs, Level 2 | Equity investment | Warrants
Assets
Total assets measured at estimated fair value	0	0
InCarda | Recurring basis | Significant Unobservable Inputs, Level 3 | Equity investment | Warrants
Assets
Total assets measured at estimated fair value	135	59
InCarda 2024 Convertible Note | Recurring basis | Convertible debt investment
Assets
Total assets measured at estimated fair value	436	436
InCarda 2024 Convertible Note | Recurring basis | Quoted Price in Active Markets for Identical Assets, Level 1 | Convertible debt investment
Assets
Total assets measured at estimated fair value	0	0
InCarda 2024 Convertible Note | Recurring basis | Significant Other Observable Inputs, Level 2 | Convertible debt investment
Assets
Total assets measured at estimated fair value	0
InCarda 2024 Convertible Note | Recurring basis | Significant Unobservable Inputs, Level 3 | Convertible debt investment
Assets
Total assets measured at estimated fair value	436	436
InCarda 2025 Convertible Note | Recurring basis | Convertible debt investment
Assets
Total assets measured at estimated fair value	475
InCarda 2025 Convertible Note | Recurring basis | Quoted Price in Active Markets for Identical Assets, Level 1 | Convertible debt investment
Assets
Total assets measured at estimated fair value	0
InCarda 2025 Convertible Note | Recurring basis | Significant Other Observable Inputs, Level 2 | Convertible debt investment
Assets
Total assets measured at estimated fair value	0
InCarda 2025 Convertible Note | Recurring basis | Significant Unobservable Inputs, Level 3 | Convertible debt investment
Assets
Total assets measured at estimated fair value	475
ImaginAb | Recurring basis | Convertible debt investment
Assets
Total assets measured at estimated fair value		4,950
ImaginAb | Recurring basis | Quoted Price in Active Markets for Identical Assets, Level 1 | Convertible debt investment
Assets
Total assets measured at estimated fair value		0
ImaginAb | Recurring basis | Significant Other Observable Inputs, Level 2 | Convertible debt investment
Assets
Total assets measured at estimated fair value		0
ImaginAb | Recurring basis | Significant Unobservable Inputs, Level 3 | Convertible debt investment
Assets
Total assets measured at estimated fair value		4,950
Syndeio 2021 Convertible Note | Recurring basis | Convertible debt investment
Assets
Total assets measured at estimated fair value	77,658	50,881
Syndeio 2021 Convertible Note | Recurring basis | Quoted Price in Active Markets for Identical Assets, Level 1 | Convertible debt investment
Assets
Total assets measured at estimated fair value	0	0
Syndeio 2021 Convertible Note | Recurring basis | Significant Other Observable Inputs, Level 2 | Convertible debt investment
Assets
Total assets measured at estimated fair value	0	0
Syndeio 2021 Convertible Note | Recurring basis | Significant Unobservable Inputs, Level 3 | Convertible debt investment
Assets
Total assets measured at estimated fair value	77,658	$ 50,881
Syndeio 2025 Convertible Note | Recurring basis | Convertible debt investment
Assets
Total assets measured at estimated fair value	15,050
Syndeio 2025 Convertible Note | Recurring basis | Quoted Price in Active Markets for Identical Assets, Level 1 | Convertible debt investment
Assets
Total assets measured at estimated fair value	0
Syndeio 2025 Convertible Note | Recurring basis | Significant Other Observable Inputs, Level 2 | Convertible debt investment
Assets
Total assets measured at estimated fair value	0
Syndeio 2025 Convertible Note | Recurring basis | Significant Unobservable Inputs, Level 3 | Convertible debt investment
Assets
Total assets measured at estimated fair value	15,050
Lyndra Convertible Note | Recurring basis | Convertible debt investment
Assets
Total assets measured at estimated fair value	6,823
Lyndra Convertible Note | Recurring basis | Quoted Price in Active Markets for Identical Assets, Level 1 | Convertible debt investment
Assets
Total assets measured at estimated fair value	0
Lyndra Convertible Note | Recurring basis | Significant Other Observable Inputs, Level 2 | Convertible debt investment
Assets
Total assets measured at estimated fair value	0
Lyndra Convertible Note | Recurring basis | Significant Unobservable Inputs, Level 3 | Convertible debt investment
Assets
Total assets measured at estimated fair value	$ 6,823

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