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Fair Value Measurements - Level 3 Valuations (Details) - Level 3 | Mar. 31, 2021
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ImThera Medical, Inc. (“ImThera”) | Discounted cash flow | Discount rate |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |
Measurement input | 0.067
ImThera Medical, Inc. (“ImThera”) | Discounted cash flow | Probability of payment |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |
Measurement input | 0.85
ImThera Medical, Inc. (“ImThera”) | Monte Carlo simulation | Probability of payment |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |
Measurement input | 0.85
ImThera Medical, Inc. (“ImThera”) | Monte Carlo simulation | Revenue volatility |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |
Measurement input | 0.325
ImThera Medical, Inc. (“ImThera”) | Minimum | Monte Carlo simulation | Risk-adjusted discount rate |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |
Measurement input | 0.120
ImThera Medical, Inc. (“ImThera”) | Minimum | Monte Carlo simulation | Credit risk discount rate |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |
Measurement input | 0.070
ImThera Medical, Inc. (“ImThera”) | Maximum | Monte Carlo simulation | Risk-adjusted discount rate |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |
Measurement input | 0.127
ImThera Medical, Inc. (“ImThera”) | Maximum | Monte Carlo simulation | Credit risk discount rate |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |
Measurement input | 0.078
CardiacAssist, Inc., doing business as TandemLife (“TandemLife”) | Discounted cash flow | Discount rate |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |
Measurement input | 0.049
CardiacAssist, Inc., doing business as TandemLife (“TandemLife”) | Discounted cash flow | Probability of payment |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |
Measurement input | 0.70

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