| Three-Month Period Ended | Six-Month Period Ended | ||||||||||||||||||||||||
|
September 24,
2021 |
June 25,
2021 |
September 25,
2020 |
September 24,
2021 |
September 25,
2020 | |||||||||||||||||||||
| (Dollars in thousands) | |||||||||||||||||||||||||
| Reconciliation of Operating Income | |||||||||||||||||||||||||
| GAAP Operating Income | $ | 38,554 | $ | 32,242 | $ | 12,402 | $ | 70,796 | $ | 16,934 | |||||||||||||||
| Voxtel inventory impairment | 271 | 2,835 | — | 3,106 | — | ||||||||||||||||||||
| PSL and Sanken distribution agreement | — | — | 2,815 | — | 6,198 | ||||||||||||||||||||
| Stock-based compensation | 6,196 | 4,831 | 580 | 11,027 | 1,025 | ||||||||||||||||||||
| AMTC Facility consolidation one-time costs | 158 | 463 | 1,766 | 621 | 3,471 | ||||||||||||||||||||
| Amortization of acquisition-related intangible assets | 289 | 302 | 114 | 591 | 114 | ||||||||||||||||||||
| COVID-19 related expenses | 875 | 730 | 471 | 1,605 | 4,471 | ||||||||||||||||||||
| Change in fair value of contingent consideration | 300 | 300 | — | 600 | — | ||||||||||||||||||||
| Transaction fees | 6 | 23 | 1,871 | 29 | 1,988 | ||||||||||||||||||||
| Severance | — | 168 | — | 168 | 337 | ||||||||||||||||||||
| Total Non-GAAP Adjustments | $ | 8,095 | $ | 9,652 | $ | 7,617 | $ | 17,747 | $ | 17,604 | |||||||||||||||
| Non-GAAP Operating Income* | $ | 46,649 | $ | 41,894 | $ | 20,019 | $ | 88,543 | $ | 34,538 | |||||||||||||||
| Non-GAAP Operating Margin* (% of net sales) | 24.1 | % | 22.3 | % | 14.6 | % | 23.2 | % | 13.7 | % | |||||||||||||||
* Non-GAAP Operating Income and the corresponding calculation of non-GAAP Operating Margin do not include adjustments for the following components of our net income: (i) additional AMTC related costs of $—, $—, and $2,330 for the three months ended September 24, 2021, June 25, 2021, and September 25, 2020, respectively, and out of period adjustment for depreciation expense of GMR assets of $—, $—, and $768 for the three months ended September 24, 2021, June 25, 2021, and September 25, 2020, respectively, and (ii) additional AMTC related costs of $— and $5,728 for the six months ended September 24, 2021 and September 25, 2020, respectively, labor savings costs of $— and $109 for the six months ended September 24, 2021 and September 25, 2020, respectively, and out of period adjustment for depreciation expense of GMR assets of $— and $768 for the six months ended September 24, 2021 and September 25, 2020, respectively.
