Income Taxes (Schedule of Effective Income Tax Rate Reconciliation) (Details)	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Effective Income Tax Rate Reconciliation, Percent [Abstract]
Tax at federal statutory rate	21.00%	35.00%	35.00%
State, net of federal benefit	1.50%	1.00%	1.80%
Impact of international operations	1.90%	(8.80%)	(2.80%)
Stock-based compensation	(0.30%)	(3.90%)	1.20%
Tax credits	(2.60%)	(2.00%)	(0.90%)
Valuation allowance	1.40%	0.00%	0.00%
Impact of the Tax Act	(15.40%)	104.60%	0.00%
Write-off of future tax benefits related to Arlo	52.20%	0.00%	0.00%
Others	0.20%	(1.80%)	(0.30%)
Provision for income taxes	59.90%	124.10%	34.00%