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Performance-Based Common Stock Warrants - Assumptions Used in Valuation and Weighted Average Fair Value of Warrants (Details) - Performance-based warrants | Jan. 01, 2020 $ / shares | Dec. 31, 2019 $ / shares
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Class of Warrant or Right [Line Items] |  |
Fair value (in dollars per share) | $ 17.19 | $ 21.60
Price of Universal Electronics Inc. common stock (in dollars per share) | $ 52.21 | $ 58.01
Risk-free interest rate |  |
Class of Warrant or Right [Line Items] |  |
Measurement input | 0.0162 | 0.0165
Expected volatility |  |
Class of Warrant or Right [Line Items] |  |
Measurement input | 0.4886 | 0.4890
Expected life in years |  |
Class of Warrant or Right [Line Items] |  |
Expected life in years | 3 years | 3 years 1 month 17 days

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