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Segment Information (Schedule of Reportable Segments and Reconciliation of Segment Contribution Income to Income Before Income Taxes) (Details) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 28, 2020 | Jun. 30, 2019 | Jun. 28, 2020 | Jun. 30, 2019
Segment Reporting Information [Line Items] |  |  |  |  |
Total net revenue |  | $ 280,052 | $ 230,852 | $ 510,015 | $ 479,934
Total segment contribution income |  | 40,472 | 25,624 | 67,626 | 67,428
Corporate and unallocated costs |  | (19,489) | (15,576) | (38,451) | (34,708)
Amortization of intangibles | [1] | (1,519) | (1,682) | (3,038) | (3,692)
Stock-based compensation expense |  | (9,172) | (6,739) | (15,508) | (13,197)
Separation expense |  | 0 | 0 | 0 | (264)
Change in fair value of contingent consideration |  | (311) | 0 | (89) | 0
Restructuring and other charges |  | (1,117) | (1,291) | (982) | (1,223)
Litigation reserves, net |  | 3 | (10) | (22) | (10)
Interest income |  | 49 | 782 | 311 | 1,483
Other income (expense), net |  | 314 | 487 | (4,272) | 828
Total before tax |  | 9,230 | 1,595 | 5,575 | 16,645
Connected Home |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Total net revenue |  | 230,017 | 167,495 | 394,680 | 336,860
Total segment contribution income |  | $ 36,187 | $ 14,204 | $ 49,774 | $ 33,323
Segment contribution margin |  | 15.70% | 8.50% | 12.60% | 9.90%
SMB |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Total net revenue |  | $ 50,035 | $ 63,357 | $ 115,335 | $ 143,074
Total segment contribution income |  | $ 4,285 | $ 11,420 | $ 17,852 | $ 34,105
Segment contribution margin |  | 8.60% | 18.00% | 15.50% | 23.80%
[1] | Amount excludes amortization expense related to patents within purchased intangibles in cost of revenue.

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