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Summary of Significant Accounting Policies - Additional Information (Details) |  |  |  | 1 Months Ended | 3 Months Ended | 12 Months Ended |  |
--- | --- | --- | --- | --- | --- | --- | --- | ---
Jan. 01, 2020 USD ($) | Jul. 19, 2018 USD ($) | Jul. 05, 2011 patent | Jul. 31, 2015 patent | Dec. 31, 2018 USD ($) | Dec. 31, 2017 USD ($) | Dec. 31, 2019 USD ($) Reporting_Unit | Dec. 31, 2018 USD ($) | Dec. 31, 2017 USD ($) | Feb. 04, 2020 USD ($) | Jan. 01, 2019 USD ($)
Significant Accounting Policies [Line Items] |  |  |  |  |  |  |  |  |  |  |
Amount of inventory as a percentage of prior year purchases that can be returned by certain distributors |  |  |  |  |  |  | 3.00% |  |  |  |
Unprocessed adjustments recognized against gross accounts receivables |  |  |  |  | $ 25,500,000 |  | $ 29,500,000 | $ 25,500,000 |  |  |
Unprocessed adjustments recognized against accounts accrued liabilities |  |  |  |  | 9,100,000 |  | 11,000,000.0 | 9,100,000 |  |  |
Bad debt expense, net of recoveries |  |  |  |  |  |  | 100,000 | 200,000 | $ 400,000 |  |
Allowance for doubtful accounts |  |  |  |  | 3,100,000 |  | 2,600,000 | 3,100,000 |  |  |
Obsolescence and other reserves |  |  |  |  | 17,364,000 |  | $ 21,245,000 | 17,364,000 |  |  |
Number of reporting units used in quantitative assessment | Reporting_Unit |  |  |  |  |  |  | 10 |  |  |  |
Accumulated other comprehensive losses recognized as result of sale of equity method investment |  |  |  |  | 74,907,000 |  | $ 63,418,000 | 74,907,000 |  |  |
Proceeds from disposal of business |  |  |  |  |  |  | 0 | 40,171,000 | 0 |  |
Accrued sales rebates |  |  |  |  | 41,312,000 |  | 37,170,000 | 41,312,000 |  |  |
Gain from patent litigation |  |  |  |  |  |  | 0 | 62,141,000 | 0 |  |
Advertising costs |  |  |  |  |  |  | 14,700,000 | 17,000,000.0 | 18,000,000.0 |  |
Valuation allowances |  |  |  |  | 39,402,000 |  | 50,420,000 | 39,402,000 |  |  |
Tax Cuts and Jobs Act of 2017, income tax expense |  |  |  |  |  | $ 24,500,000 |  |  |  |  |
Tax Cuts and Jobs Act of 2017, remeasurement of deferred tax assets and liabilities |  |  |  |  |  |  |  | 400,000 | 41,600,000 |  |
Tax Cuts and Jobs Act of 2017, transition tax for accumulated foreign earnings, income tax expense |  |  |  |  |  |  |  | 1,300,000 | 30,800,000 |  |
Tax Cuts and Jobs Act of 2017, valuation allowance against foreign tax credit carryforward |  |  |  |  |  |  | (10,000,000.0) | 8,000,000.0 | 35,300,000 |  |
SAB 118 Tax Expense |  |  |  |  | 2,900,000 |  |  | 10,000,000.0 |  |  |
Tax Cuts and Jobs Act of 2017, income tax expense related to employee compensation |  |  |  |  |  |  |  | 1,100,000 |  |  |
Goodwill impairment |  |  |  |  |  |  | 0 | 0 | 0 |  |
Indefinite lived intangible asset impairment |  |  |  |  |  |  | 0 | 0 | 0 |  |
Amortizable intangible asset impairment |  |  |  |  |  |  | 0 | 0 | 0 |  |
Operating lease, asset |  |  |  |  |  |  | 62,251,000 |  |  |  |
Operating lease, liability |  |  |  |  |  |  | 69,552,000 |  |  |  |
Subsidiaries | Corning |  |  |  |  |  |  |  |  |  |  |
Significant Accounting Policies [Line Items] |  |  |  |  |  |  |  |  |  |  |
Number of patents allegedly infringed upon | patent |  |  | 2 |  |  |  |  |  |  |  |
Proceeds from settlement |  | $ 62,100,000 |  |  |  |  |  |  |  |  |
Number of patents found infringed upon | patent |  |  |  | 2 |  |  |  |  |  |  |
Grass Valley |  |  |  |  |  |  |  |  |  |  |
Significant Accounting Policies [Line Items] |  |  |  |  |  |  |  |  |  |  |
Impairment of the disposal group |  |  |  |  |  |  | 521,400,000 |  |  |  |
Grass Valley | Discontinued Operations, Held-for-sale |  |  |  |  |  |  |  |  |  |  |
Significant Accounting Policies [Line Items] |  |  |  |  |  |  |  |  |  |  |
Impairment of the disposal group |  |  |  |  |  |  | 521,441,000 | 0 | 0 |  |
Goodwill impairment |  |  |  |  |  |  | $ 326,100,000 |  |  |  |
Previously Closed Operating Facility | Discontinued Operations, Disposed of by Sale |  |  |  |  |  |  |  |  |  |  |
Significant Accounting Policies [Line Items] |  |  |  |  |  |  |  |  |  |  |
Disposition, sales price |  |  |  |  | $ 1,500,000 |  |  | 1,500,000 |  |  |
Gain on disposal |  |  |  |  |  |  |  | 600,000 |  |  |
Hirschmann Jv | Discontinued Operations, Held-for-sale |  |  |  |  |  |  |  |  |  |  |
Significant Accounting Policies [Line Items] |  |  |  |  |  |  |  |  |  |  |
Disposition, sales price |  |  |  |  |  | 40,200,000 |  |  | 40,200,000 |  |
Equity method investment, realized loss on disposal |  |  |  |  |  |  |  |  | 1,000,000.0 |  |
Accumulated other comprehensive losses recognized as result of sale of equity method investment |  |  |  |  |  | $ 2,800,000 |  |  | $ 2,800,000 |  |
Proceeds from disposal of business |  |  |  |  |  |  |  | $ 40,200,000 |  |  |
Minimum |  |  |  |  |  |  |  |  |  |  |
Significant Accounting Policies [Line Items] |  |  |  |  |  |  |  |  |  |  |
Estimated useful life of definite-lived intangible assets |  |  |  |  |  |  | 1 year |  |  |  |
Maximum |  |  |  |  |  |  |  |  |  |  |
Significant Accounting Policies [Line Items] |  |  |  |  |  |  |  |  |  |  |
Estimated useful life of definite-lived intangible assets |  |  |  |  |  |  | 25 years |  |  |  |
Buildings | Minimum |  |  |  |  |  |  |  |  |  |  |
Significant Accounting Policies [Line Items] |  |  |  |  |  |  |  |  |  |  |
Estimated useful life of property, plant, and equipment |  |  |  |  |  |  | P10Y |  |  |  |
Buildings | Maximum |  |  |  |  |  |  |  |  |  |  |
Significant Accounting Policies [Line Items] |  |  |  |  |  |  |  |  |  |  |
Estimated useful life of property, plant, and equipment |  |  |  |  |  |  | P40Y |  |  |  |
Machinery and equipment | Minimum |  |  |  |  |  |  |  |  |  |  |
Significant Accounting Policies [Line Items] |  |  |  |  |  |  |  |  |  |  |
Estimated useful life of property, plant, and equipment |  |  |  |  |  |  | P5Y |  |  |  |
Machinery and equipment | Maximum |  |  |  |  |  |  |  |  |  |  |
Significant Accounting Policies [Line Items] |  |  |  |  |  |  |  |  |  |  |
Estimated useful life of property, plant, and equipment |  |  |  |  |  |  | P12Y |  |  |  |
Computer Equipment and Software | Minimum |  |  |  |  |  |  |  |  |  |  |
Significant Accounting Policies [Line Items] |  |  |  |  |  |  |  |  |  |  |
Estimated useful life of property, plant, and equipment |  |  |  |  |  |  | P5Y |  |  |  |
Computer Equipment and Software | Maximum |  |  |  |  |  |  |  |  |  |  |
Significant Accounting Policies [Line Items] |  |  |  |  |  |  |  |  |  |  |
Estimated useful life of property, plant, and equipment |  |  |  |  |  |  | P10Y |  |  |  |
Accounting Standards Update 2016-02 |  |  |  |  |  |  |  |  |  |  |
Significant Accounting Policies [Line Items] |  |  |  |  |  |  |  |  |  |  |
Operating lease, asset |  |  |  |  |  |  |  |  |  |  | $ 70,700,000
Operating lease, liability |  |  |  |  |  |  |  |  |  |  | $ 77,300,000
Subsequent Event | Grass Valley | Discontinued Operations, Disposed of by Sale |  |  |  |  |  |  |  |  |  |  |
Significant Accounting Policies [Line Items] |  |  |  |  |  |  |  |  |  |  |
Disposition, sales price |  |  |  |  |  |  |  |  |  | $ 140,000,000 |
Subsequent Event | Scenario, Forecast | Accounting Standards Update 2016-13 |  |  |  |  |  |  |  |  |  |  |
Significant Accounting Policies [Line Items] |  |  |  |  |  |  |  |  |  |  |
Incease to allowance for doubtful accounts | $ 1,000,000.0 |  |  |  |  |  |  |  |  |  |
Increase to allowance for doubtful account, discontinued operations | $ 2,000,000.0 |  |  |  |  |  |  |  |  |  |
Hirschmann Jv |  |  |  |  |  |  |  |  |  |  |
Significant Accounting Policies [Line Items] |  |  |  |  |  |  |  |  |  |  |
Equity method investment, ownership percentage |  |  |  |  |  | 50.00% |  |  | 50.00% |  |

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