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	Dec. 31, 2018 $ / shares
Class of Warrant or Right [Line Items]
Fair value (in dollars per share)	$ 17.19	$ 21.60	$ 3.45
Price of Universal Electronics Inc. common stock (in dollars per share)	$ 52.21	$ 58.01	$ 24.81
Risk-free interest rate
Class of Warrant or Right [Line Items]
Measurement input	0.0162	0.0165	0.0249
Expected volatility
Class of Warrant or Right [Line Items]
Measurement input	0.4886	0.4890	0.4316
Expected life in years
Class of Warrant or Right [Line Items]
Expected life in years	3 years	3 years 1 month 17 days	4 years