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Segment Information (Tables) | 3 Months Ended
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Apr. 29, 2018
Segment Reporting Information [Line Items] |
Net Sales by Segment | Net sales by segment are as follows:
| Three Months Ended
(in thousands) | April 29, 2018 |  | April 30, 2017
Semiconductor Products Group | $ | 130,429 |  |  | $ | 143,802 |
Total | $ | 130,429 |  |  | $ | 143,802 |
Income by Segment and Reconciliation to Consolidated Operating Income | Income by segment and reconciliation to consolidated operating income:
| Three Months Ended
(in thousands) | April 29, 2018 |  | April 30, 2017
Semiconductor Products Group | $ | 40,812 |  |  | $ | 39,222 |
Operating income by segment | 40,812 |  |  | 39,222 |
Items to reconcile segment operating income to consolidated income before taxes |  |  |
Share-based compensation | 35,516 |  |  | 13,286 |
Intangible amortization | 6,961 |  |  | 6,286 |
Other non-segment related expenses | 1,432 |  |  | 1,204 |
Amortization of fair value adjustments related to acquired property, plant and equipment | — |  |  | 190 |
Interest expense, net | 2,190 |  |  | 2,046 |
Non-operating expense, net | (190 | ) |  | 632 |
(Loss) income before taxes | $ | (5,097 | ) |  | $ | 15,578 |
Net Sales Activity By Product Line | The table below provides net sales activity by product line on a comparative basis:
| Three Months Ended
(in thousands, except percentages) | April 29, 2018 |  | April 30, 2017
Signal Integrity | $ | 65,599 |  |  | 50 | % |  | $ | 68,058 |  |  | 49 | %
Protection | 40,792 |  |  | 31 | % |  | 42,249 |  |  | 29 | %
Wireless and Sensing | 45,539 |  |  | 35 | % |  | 38,775 |  |  | 26 | %
Other: Warrant Shares (1) | (21,501 | ) |  | (16 | )% |  | (5,280 | ) |  | (4 | )%
Total net sales | $ | 130,429 |  |  | 100 | % |  | $ | 143,802 |  |  | 100 | %
Schedule of Revenue from External Customers by Sales Channel |
| Three Months Ended
(in thousands) | April 29, 2018 | April 30, 2017
Distributor | $ | 111,340 |  |  | $ | 100,542 |
Direct | 40,590 |  |  | 48,540 |
Other: Warrant Shares | (21,501 | ) |  | (5,280 | )
Total net sales | $ | 130,429 |  |  | $ | 143,802 |
Net Sales Activity By Geographic Region | Net sales activity by geographic region is as follows:
| Three Months Ended
| April 29, 2018 |  | April 30, 2017
Asia-Pacific | 68 | % |  | 75 | %
North America | 27 | % |  | 22 | %
Europe | 9 | % |  | 7 | %
Other: Warrant Shares | (4 | )% |  | (4 | )%
| 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
(percentage of total sales) | April 29, 2018 |  | April 30, 2017
China (including Hong Kong) | 50 | % |  | 52 | %
United States | 14 | % |  | 9 | %

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