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Segment Information (Tables) | 12 Months Ended
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Jan. 31, 2021
Segment Reporting [Abstract] |
Net sales by segment | Net sales by reportable segment were as follows:
| Fiscal Year Ended
(in thousands) | January 31, 2021 |  | January 26, 2020 |  | January 27, 2019
Semiconductor Products Group | $ | 595,117 |  |  | $ | 547,512 |  |  | $ | 627,196 |
Total | $ | 595,117 |  |  | $ | 547,512 |  |  | $ | 627,196 |
Income by segment and reconciliation to consolidated | 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):
| Fiscal Year Ended
(in thousands) | January 31, 2021 |  | January 26, 2020 |  | January 27, 2019
Semiconductor Products Group | $ | 139,535 |  |  | $ | 124,911 |  |  | $ | 186,975 |
Operating income by segment | 139,535 |  |  | 124,911 |  |  | 186,975 |
Items to reconcile segment operating income to consolidated income before taxes: |  |  |  |  |
Share-based compensation | 52,986 |  |  | 52,049 |  |  | 66,837 |
Intangible amortization | 8,265 |  |  | 16,546 |  |  | 26,649 |
Investment impairments and credit loss reserves | 6,769 |  |  | 1,211 |  |  | 30,000 |
Changes in the fair value of contingent earn-out obligations | (33) |  |  | (2,345) |  |  | (9,419) |
Restructuring and other reserves | 1,314 |  |  | 4,621 |  |  | 769 |
Litigation cost, net of recoveries | 1,263 |  |  | 1,340 |  |  | (6,137) |
Transaction and integration related | 784 |  |  | 691 |  |  | 2,777 |
Interest expense | 5,336 |  |  | 9,106 |  |  | 9,202 |
Non-operating income, net | (124) |  |  | (2,893) |  |  | (3,823) |
Income before taxes and equity in net gains (losses) of equity method investments | $ | 62,975 |  |  | $ | 44,585 |  |  | $ | 70,120 |
Net sales by product line | The table below provides net sales activity by product line on a comparative basis:
| Fiscal Year Ended
(in thousands, except percentages) | January 31, 2021 |  | January 26, 2020 |  | January 27, 2019
Signal Integrity | $ | 255,640 |  |  | 43 | % |  | $ | 222,846 |  |  | 40 | % |  | $ | 276,040 |  |  | 44 | %
Wireless and Sensing | 177,534 |  |  | 30 | % |  | 167,454 |  |  | 31 | % |  | 190,589 |  |  | 30 | %
Protection | 161,943 |  |  | 27 | % |  | 157,212 |  |  | 29 | % |  | 182,068 |  |  | 29 | %
Other: Warrant Shares (1) | — |  |  | — | % |  | — |  |  | — | % |  | (21,501) |  |  | (3) | %
Total net sales | $ | 595,117 |  |  | 100 | % |  | $ | 547,512 |  |  | 100 | % |  | $ | 627,196 |  |  | 100 | %
Schedule Of Revenue From External Customers By Sales Channel | Information by Sales Channel
| Fiscal Year Ended
(in thousands) | January 31, 2021 |  | January 26, 2020 |  | January 27, 2019
Distributor | $ | 490,009 |  |  | $ | 392,582 |  |  | $ | 442,518 |
Direct | 105,108 |  |  | 154,930 |  |  | 206,179 |
Other: Warrant Shares | — |  |  | — |  |  | (21,501) |
Total net sales | $ | 595,117 |  |  | $ | 547,512 |  |  | $ | 627,196 |
Net sales by geographic region | Net sales activity by geographic region was as follows:
| Fiscal Year Ended
(in thousands, except percentages) | January 31, 2021 |  | January 26, 2020 |  | January 27, 2019
Asia-Pacific | $ | 474,040 |  |  | 80 | % |  | $ | 421,584 |  |  | 77 | % |  | $ | 480,680 |  |  | 76 | %
North America | 71,866 |  |  | 12 | % |  | 76,652 |  |  | 14 | % |  | 118,664 |  |  | 19 | %
Europe | 49,211 |  |  | 8 | % |  | 49,276 |  |  | 9 | % |  | 49,353 |  |  | 8 | %
Other: Warrant Shares | — |  |  | — | % |  | — |  |  | — | % |  | (21,501) |  |  | (3) | %
Total net sales | $ | 595,117 |  |  | 100 | % |  | $ | 547,512 |  |  | 100 | % |  | $ | 627,196 |  |  | 100 | %
Sales activity to countries representing greater than 10% of total sales | The table below summarizes sales activity to countries that represented greater than 10% of total sales for at least one of the periods presented:
| Fiscal Year Ended
(percentage of total net sales) | January 31, 2021 |  | January 26, 2020 |  | January 27, 2019
China (including Hong Kong) | 60 | % |  | 53 | % |  | 55 | %
United States | 10 | % |  | 9 | % |  | 11 | %
Total net sales | 70 | % |  | 62 | % |  | 66 | %
Significant Customers | The following significant customers accounted for at least 10% of net sales in one or more of the periods indicated:
| Fiscal Year Ended
(percentage of net sales) | January 31, 2021 |  | January 26, 2020 |  | January 27, 2019
Trend-tek Technology Ltd. (and affiliates) | 17 | % |  | 13 | % |  | 14 | %
Frontek Technology Corporation (and affiliates) | 16 | % |  | 11 | % |  | 11 | %
CEAC International Ltd. (and affiliates) | 11 | % |  | 8 | % |  | 8 | %
Arrow Electronics (and affiliates) | 9 | % |  | 9 | % |  | 10 | %
Samsung Electronics (and affiliates) | 2 | % |  | 4 | % |  | 8 | %
Premier Technical Sales Korea, Inc. (and affiliates) (1) | 6 | % |  | 7 | % |  | 4 | %
(1) Premier is a distributor with a concentration of sales to Samsung Electronics (and affiliates). The above percentages represent the Company's estimate of the sales activity related to Samsung Electronics (and affiliates) that is passing through this distributor. The following table shows the customers that have an outstanding receivable balance that represents at least 10% of total net receivables as of the dates indicated:
| Balance as of
(percentage of net receivables) | January 31, 2021 |  | January 26, 2020
Trend-tek Technology Ltd. (and affiliates) | 14 | % |  | 13 | %
CEAC International Ltd. (and affiliates) | 14 | % |  | 11 | %
Frontek Technology Corporation (and affiliates) | 10 | % |  | 11 | %
Long-lived assets by location | The following table summarizes the Company's long-lived assets, which consist of property, plant and equipment, net of accumulated depreciation, classified by location:
| Balance as of
(in thousands) | January 31, 2021 |  | January 26, 2020
United States | $ | 61,502 |  |  | $ | 54,357 |
Rest of North America | 35,216 |  |  | 32,559 |
Asia and all others | 22,877 |  |  | 26,133 |
Europe | 11,339 |  |  | 11,369 |
Total | $ | 130,934 |  |  | $ | 124,418 |

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