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Segment Information (Schedule of Reportable Segments and Reconciliation of Segment Contribution Income to Income (Loss) Before Income Taxes) (Details) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended
--- | --- | ---
Oct. 03, 2021 | Sep. 27, 2020 | Oct. 03, 2021 | Sep. 27, 2020
Segment Reporting Information [Line Items] |  |  |  |  |
Total net revenue |  | $ 290,150 | $ 378,114 | $ 916,886 | $ 888,129
Total segment contribution income |  | 39,695 | 64,685 | 151,020 | 132,311
Corporate and unallocated costs |  | (20,203) | (23,293) | (62,744) | (61,744)
Amortization of intangibles | [1] | (145) | (1,470) | (1,768) | (4,508)
Stock-based compensation expense |  | (6,210) | (7,218) | (20,072) | (22,726)
Change in fair value of contingent consideration |  | 0 | (187) | 3,003 | (276)
Restructuring and other charges |  | (222) | (329) | (3,378) | (1,311)
Litigation reserves, net |  | 0 | (22) | (315) | (44)
Other income (expense), net | [2] | (132) | (417) | 15 | (4,378)
Total before tax |  | 12,783 | 31,749 | 65,761 | 37,324
Connected Home |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Total net revenue |  | 208,539 | 316,739 | 679,320 | 711,419
Total segment contribution income |  | $ 22,558 | $ 55,964 | $ 101,189 | $ 105,738
Segment contribution margin |  | 10.80% | 17.70% | 14.90% | 14.90%
SMB |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Total net revenue |  | $ 81,611 | $ 61,375 | $ 237,566 | $ 176,710
Total segment contribution income |  | $ 17,137 | $ 8,721 | $ 49,831 | $ 26,573
Segment contribution margin |  | 21.00% | 14.20% | 21.00% | 15.00%
[1] | Amounts excluded amortization expense related to patents within purchased intangibles in cost of revenue.
[2] | Amounts included gain/loss on investments, net, of $(166,000) and $(174,000) for the three and nine months ended October 3, 2021, respectively, and $(0.9) million and $(5.4) million for the three and nine months ended September 27, 2020, respectively.

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