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Performance-Based Common Stock Warrants - Fair Value Assumptions (Details) - Common stock purchase warrant - $ / shares | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2017 | Sep. 30, 2016 | Sep. 30, 2017 | Sep. 30, 2016
Class of Warrant or Right [Line Items] |  |  |  |
Fair value (in dollars per share) | $ 24.17 | $ 38.32 | $ 24.17 | $ 38.32
Price of Universal Electronics Inc. common stock (in dollars per share) | $ 62.1 | $ 74.99 | $ 62.1 | $ 74.99
Risk-free interest rate | 1.93% | 1.32% | 1.93% | 1.32%
Expected volatility | 34.41% | 40.54% | 34.41% | 40.54%
Expected life in years | 5 years 3 months 3 days | 6 years 3 months | 5 years 3 months 3 days | 6 years 3 months

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- Definition Class of Warrant or Right, Fair Value + References No definition available. + Details
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
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- Definition Period the instrument, asset or liability is expected to be outstanding, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (bbb) -URI http://asc.fasb.org/extlink&oid=66048111&loc=d3e19207-110258 + Details
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- Definition Measure of dispersion, in percentage terms (for instance, the standard deviation or variance), for a given stock price. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (bbb) -URI http://asc.fasb.org/extlink&oid=66048111&loc=d3e19207-110258 + Details
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- Definition Risk-free interest rate assumption used in valuing an instrument. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (bbb) -URI http://asc.fasb.org/extlink&oid=66048111&loc=d3e19207-110258 + Details
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- Definition Price of a single share of a number of saleable stocks of a company. + References No definition available. + Details
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- Details
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