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Fair Value Measurements - Quantitative Information used in Valuing Level 3 Liabilities (Details) - Level 3 $ in Millions | Dec. 31, 2023 USD ($) | Dec. 31, 2022 USD ($)
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Contingent Payment Obligations | Monte Carlo simulation |  |
Quantitative information for Level 3 Fair Value Measurements Liabilities |  |
Fair Value | $ 14.7 | $ 21.0
Contingent Payment Obligations | Monte Carlo simulation | Volatility | Minimum |  |
Quantitative information for Level 3 Fair Value Measurements Liabilities |  |
Obligations to related parties, measurement input | 0.19 | 0.18
Contingent Payment Obligations | Monte Carlo simulation | Volatility | Maximum |  |
Quantitative information for Level 3 Fair Value Measurements Liabilities |  |
Obligations to related parties, measurement input | 0.25 | 0.25
Contingent Payment Obligations | Monte Carlo simulation | Volatility | Weighted Average |  |
Quantitative information for Level 3 Fair Value Measurements Liabilities |  |
Obligations to related parties, measurement input | 0.21 | 0.18
Contingent Payment Obligations | Monte Carlo simulation | Discount rates | Minimum |  |
Quantitative information for Level 3 Fair Value Measurements Liabilities |  |
Obligations to related parties, measurement input | 0.06 | 0.06
Contingent Payment Obligations | Monte Carlo simulation | Discount rates | Weighted Average |  |
Quantitative information for Level 3 Fair Value Measurements Liabilities |  |
Obligations to related parties, measurement input | 0.06 | 0.06
Affiliate equity purchase obligations | Discounted cash flow |  |
Quantitative information for Level 3 Fair Value Measurements Liabilities |  |
Fair Value | $ 53.9 | $ 24.5
Affiliate equity purchase obligations | Discounted cash flow | Discount rates | Minimum |  |
Quantitative information for Level 3 Fair Value Measurements Liabilities |  |
Obligations to related parties, measurement input | 0.14 | 0.14
Affiliate equity purchase obligations | Discounted cash flow | Discount rates | Maximum |  |
Quantitative information for Level 3 Fair Value Measurements Liabilities |  |
Obligations to related parties, measurement input | 0.17 | 0.17
Affiliate equity purchase obligations | Discounted cash flow | Discount rates | Weighted Average |  |
Quantitative information for Level 3 Fair Value Measurements Liabilities |  |
Obligations to related parties, measurement input | 0.14 | 0.14
Affiliate equity purchase obligations | Discounted cash flow | Growth rates | Minimum |  |
Quantitative information for Level 3 Fair Value Measurements Liabilities |  |
Obligations to related parties, measurement input | (0.06) | (0.03)
Affiliate equity purchase obligations | Discounted cash flow | Growth rates | Maximum |  |
Quantitative information for Level 3 Fair Value Measurements Liabilities |  |
Obligations to related parties, measurement input | 0.07 | 0.06
Affiliate equity purchase obligations | Discounted cash flow | Growth rates | Weighted Average |  |
Quantitative information for Level 3 Fair Value Measurements Liabilities |  |
Obligations to related parties, measurement input | 0.01 | 0.01

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- Definition Fair value of financial and nonfinancial obligations. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org//1943274/2147482106/820-10-50-2 + Details
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