Performance-Based Common Stock Warrants - Fair Value Assumptions (Details) - Common stock purchase warrant - $ / shares	3 Months Ended		6 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016
Class of Warrant or Right [Line Items]
Fair value (in dollars per share)	$ 28.89	$ 35.88	$ 28.89	$ 35.88
Price of Universal Electronics Inc. common stock (in dollars per share)	$ 67.210	$ 71.155	$ 67.210	$ 71.155
Risk-free interest rate	1.95%	1.22%	1.95%	1.22%
Expected volatility	35.05%	41.17%	35.05%	41.17%
Expected life in years	5 years 6 months	6 years 6 months	5 years 6 months	6 years 6 months