Segment Information (Tables)

12 Months Ended

Dec. 31, 2018

Segment Reporting [Abstract]

Schedule Of Reportable Segment And Reconciliation Of Segment Contribution Income To Income Before Income Taxes

Financial information for each reportable segment and a reconciliation of segment contribution income to income before income taxes is as follows:

	Year Ended December 31,
	2018			2017			2016
	(In thousands, except percentage data)
Net revenue:
Connected Home	771,060			768,261			846,929
SMB	287,756			270,908			296,516
Total net revenue	$	1,058,816		$	1,039,169		$	1,143,445
Contribution income:
Connected Home	96,340			83,870			138,997
Connected Home contribution margin	12.5		%	10.9		%	16.4		%
SMB	70,142			63,865			72,539
SMB contribution margin	24.4		%	23.6		%	24.5		%
Total segment contribution income	166,482			147,735			211,536
Corporate and unallocated costs	(90,186		)	(75,305		)	(69,623		)
Amortization of intangibles (1)	(7,979		)	(10,663		)	(15,361		)
Stock-based compensation expense	(26,461		)	(18,969		)	(17,141		)
Separation expenses	(929		)	—			—
Restructuring and other charges	(2,198		)	(97		)	(3,841		)
Litigation reserves, net	(15		)	(148		)	(73		)
Interest income	3,980			2,114			1,164
Other income (expense), net	510			1,557			(166		)
Income before income taxes	$	43,204		$	46,224		$	106,495

Schedule of Service Provider Customers Revenue by Reporting Segments [Table Text Block]

The following table shows net revenue from service provider customers within each of the reportable segments for the periods indicated:

	Year Ended December 31,
	2018		2017		2016
	(In thousands)
Connected Home	156,671		190,186		249,980
SMB	3,624		3,268		4,175
Total service provider net revenue	$	160,295	$	193,454	$	254,155

Schedule Of Net Revenue By Geography

The following table shows net revenue by geography for the years ended December 31, 2018, 2017 and 2016:

	Year Ended December 31,
	2018		2017		2016
	(In thousands)
United States (U.S.)	$	686,145	$	648,152	$	713,178
Americas (excluding U.S.)	14,548		16,937		21,802
EMEA	207,599		197,074		217,554
APAC	150,524		177,006		190,911
Total net revenue	$	1,058,816	$	1,039,169	$	1,143,445

Schedule Of Long-Lived Asset By Geography

The Company's property and equipment are located in the following geographic locations:

	As of
	December 31, 2018		December 31, 2017		December 31, 2016
	(In thousands)
United States	$	4,993	$	7,735	$	9,274
Canada	4,359		1,745		2,745
EMEA	95		140		206
China	7,652		5,130		4,218
APAC (excluding China)	3,078		2,599		1,704
Total property and equipment, net	$	20,177	$	17,349	$	18,147