Income Taxes (Schedule of Effective Income Tax Rate Reconciliation) (Details)	12 Months Ended
Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Effective Income Tax Rate Reconciliation, Percent [Abstract]
Tax at federal statutory rate	21.00%	21.00%	35.00%
State, net of federal benefit	2.40%	1.50%	1.00%
Impact of international operations	(0.80%)	1.90%	(8.80%)
Stock-based compensation	10.70%	(0.30%)	(3.90%)
Tax credits	(5.90%)	(2.60%)	(2.00%)
Valuation allowance	0.90%	1.40%	0.00%
Impact of the Tax Act	0.00%	(15.40%)	104.60%
Base Erosion Anti-Abuse Tax	7.20%	0.00%	0.00%
Write-off of future tax benefits related to Arlo	0.00%	52.20%	0.00%
Transaction costs	(2.50%)	0.00%	0.00%
Recognition of previously unrecognized tax benefits	(20.60%)	0.00%	0.00%
Others	0.40%	0.20%	(1.80%)
Provision for income taxes	12.80%	59.90%	124.10%

Effective income tax rate reconciliation change in transaction costs.

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Effective income tax rate reconciliation, discontinued operation, percent.

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Effective income tax rate reconciliation of base erosion anti abuse tax.

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Impact of 2017 tax act.

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Percentage of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations.

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Percentage of domestic federal statutory tax rate applicable to pretax income (loss).

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Percentage of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to changes in the valuation allowance for deferred tax assets.

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Percentage of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations applicable to statutory income tax expense (benefit) outside of the country of domicile.

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Percentage of difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying domestic federal statutory income tax rate to pretax income (loss) from continuing operation, attributable to nondeductible expense for share-based payment arrangement.

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Percentage of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations applicable to state and local income tax expense (benefit), net of federal tax expense (benefit).

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Percentage of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to tax credits. Including, but not limited to, research credit, foreign tax credit, investment tax credit, and other tax credits.

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