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Fair Value Measurements and Financial Instruments - Financial Assets and Liabilities Measured at Fair Value (Detail) - USD ($) $ in Thousands | Jun. 30, 2024 | Dec. 31, 2023
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Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |
Assets, fair value |  | $ 7,723 | $ 10,582
Liabilities, fair value |  | 10,473 | 17,557
Long-term Receivable |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |
Assets, fair value |  | 4,839 | 4,722
Money Market Funds |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |
Assets, fair value | [1] | 2,884 | 5,860
CVR Derivative Liability, Noncurrent |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |
Liabilities, fair value |  | 4,839 | 4,722
Warrant Liability, Noncurrent |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |
Liabilities, fair value |  | 5,634 | 12,835
Fair Value, Inputs, Level 1 |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |
Assets, fair value |  | 2,884 | 5,860
Fair Value, Inputs, Level 1 | Money Market Funds |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |
Assets, fair value | [1] | 2,884 | 5,860
Fair Value, Inputs, Level 3 |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |
Assets, fair value |  | 4,839 | 4,722
Liabilities, fair value |  | 10,473 | 17,557
Fair Value, Inputs, Level 3 | Long-term Receivable |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |
Assets, fair value |  | 4,839 | 4,722
Fair Value, Inputs, Level 3 | CVR Derivative Liability, Noncurrent |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |
Liabilities, fair value |  | 4,839 | 4,722
Fair Value, Inputs, Level 3 | Warrant Liability, Noncurrent |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |
Liabilities, fair value |  | $ 5,634 | $ 12,835
[1] | Included in cash and cash equivalents on the accompanying condensed consolidated balance sheets.

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