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Segment Information (Tables) | 9 Months Ended
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Oct. 27, 2019
Segment Reporting [Abstract] |
Net Sales by Segment | Net sales by segment were as follows:
| Three Months Ended |  | Nine Months Ended
(in thousands) | October 27, 2019 |  | October 28, 2018 |  | October 27, 2019 |  | October 28, 2018
Semiconductor Products Group | $ | 141,011 |  |  | $ | 173,550 |  |  | $ | 409,511 |  |  | $ | 467,190 |
Total | $ | 141,011 |  |  | $ | 173,550 |  |  | $ | 409,511 |  |  | $ | 467,190 |
Income by Segment and Reconciliation to Consolidated Operating Income | The following table presents a reconciliation of operating income by segment to consolidated income before taxes. Historical amounts have been adjusted to conform to the current presentation:
| Three Months Ended |  | Nine Months Ended
(in thousands) | October 27, 2019 |  | October 28, 2018 |  | October 27, 2019 |  | October 28, 2018
Semiconductor Products Group | $ | 33,904 |  |  | $ | 52,738 |  |  | $ | 94,037 |  |  | $ | 140,660 |
Operating income by segment | 33,904 |  |  | 52,738 |  |  | 94,037 |  |  | 140,660 |
Items to reconcile segment operating income to consolidated income before taxes: |  |  |  |  |  |  |
Share-based compensation | 8,767 |  |  | 11,466 |  |  | 28,741 |  |  | 60,947 |
Intangible amortization | 3,770 |  |  | 6,480 |  |  | 12,821 |  |  | 19,921 |
Investment impairments | — |  |  | 30,000 |  |  | — |  |  | 30,000 |
Changes in the fair value of contingent earn-out obligations | (152 | ) |  | (8,519 | ) |  | (2,313 | ) |  | (9,419 | )
Restructuring and other reserves | — |  |  | 86 |  |  | 2,711 |  |  | 518 |
Litigation cost, net of recoveries | 205 |  |  | (264 | ) |  | 930 |  |  | (5,562 | )
Transaction and integration related | (851 | ) |  | 1,622 |  |  | 617 |  |  | 2,549 |
Interest expense | 2,183 |  |  | 2,355 |  |  | 7,247 |  |  | 6,745 |
Non-operating income, net | (644 | ) |  | (1,182 | ) |  | (2,900 | ) |  | (1,914 | )
Income before taxes | $ | 20,626 |  |  | $ | 10,694 |  |  | $ | 46,183 |  |  | $ | 36,875 |
Net Sales Activity By Product Line | The table below provides net sales activity by product line on a comparative basis:
| Three Months Ended |  | Nine Months Ended
(in thousands, except percentages) | October 27, 2019 |  | October 28, 2018 |  | October 27, 2019 |  | October 28, 2018
Signal Integrity | $ | 58,563 |  |  | 42 | % |  | $ | 69,981 |  |  | 40 | % |  | $ | 163,913 |  |  | 40 | % |  | $ | 204,381 |  |  | 44 | %
Wireless and Sensing | 42,287 |  |  | 30 | % |  | 50,484 |  |  | 29 | % |  | 126,190 |  |  | 31 | % |  | 144,435 |  |  | 31 | %
Protection | 40,161 |  |  | 28 | % |  | 53,085 |  |  | 31 | % |  | 119,408 |  |  | 29 | % |  | 139,875 |  |  | 30 | %
Other: Warrant Shares (1) | — |  |  | — | % |  | — |  |  | — | % |  | — |  |  | — | % |  | (21,501 | ) |  | (5 | )%
Total net sales | $ | 141,011 |  |  | 100 | % |  | $ | 173,550 |  |  | 100 | % |  | $ | 409,511 |  |  | 100 | % |  | $ | 467,190 |  |  | 100 | %
Schedule of Revenue from External Customers by Sales Channel |
| Three Months Ended |  | Nine Months Ended
(in thousands) | October 27, 2019 |  | October 28, 2018 |  | October 27, 2019 |  | October 28, 2018
Distributor | $ | 107,383 |  |  | $ | 120,009 |  |  | $ | 287,642 |  |  | $ | 332,304 |
Direct | 33,628 |  |  | 53,541 |  |  | 121,869 |  |  | 156,387 |
Other: Warrant Shares | — |  |  | — |  |  | — |  |  | (21,501 | )
Total net sales | $ | 141,011 |  |  | $ | 173,550 |  |  | $ | 409,511 |  |  | $ | 467,190 |
Net Sales Activity By Geographic Region | Net sales activity by geographic region was as follows:
| Three Months Ended |  | Nine Months Ended
| October 27, 2019 |  | October 28, 2018 |  | October 27, 2019 |  | October 28, 2018
Asia-Pacific | 75 | % |  | 77 | % |  | 76 | % |  | 74 | %
North America | 16 | % |  | 16 | % |  | 15 | % |  | 26 | %
Europe | 9 | % |  | 7 | % |  | 9 | % |  | 7 | %
Other: Warrant Shares | — | % |  | — | % |  | — | % |  | (7 | )%
| 100 | % |  | 100 | % |  | 100 | % |  | 100 | %
Summary Of Sales Activity To Countries That Represented Greater Than 10% Of Total Net Sales | The table below summarizes sales activity to countries that represented greater than 10% of total net sales for at least one of the periods presented:
| Three Months Ended |  | Nine Months Ended
(percentage of total sales) | October 27, 2019 |  | October 28, 2018 |  | October 27, 2019 |  | October 28, 2018
China (including Hong Kong) | 50 | % |  | 55 | % |  | 52 | % |  | 54 | %
United States | 10 | % |  | 10 | % |  | 10 | % |  | 11 | %

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