Fair Value Measurements (Roll Forward of the Changes in Fair Value of Level 3 Financial Instruments) (Details) $ in Thousands |
3 Months Ended |
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Mar. 31, 2021
USD ($)
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| Warrants [Member] | |
| Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] | |
| Liabilities, Beginning Balance | $ 0 |
| Change in fair value of derivative liabilities | 362 |
| Liabilities, Ending Balance | 362 |
| Caelum [Member] | |
| Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] | |
| Investment, Beginning Balance | 17,566 |
| Change in fair value of investments | 5,913 |
| Investment, Ending Balance | $ 23,479 |
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- Definition Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, change in fair value of derivative liabilities. No definition available.
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. No definition available.
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- Definition Amount of gain (loss) recognized in income from asset measured at fair value on recurring basis using unobservable input (level 3). Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Fair value of financial instrument classified as an asset measured using unobservable inputs that reflect the entity's own assumption about the assumptions market participants would use in pricing. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Fair value of financial instrument classified as a liability measured using unobservable inputs that reflect the entity's own assumption about the assumptions market participants would use in pricing. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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