XML 72 R40.htm IDEA: XBRL DOCUMENT
v3.22.0.1

Net Income per Share (Tables) | 9 Months Ended
--- | ---
Dec. 24, 2021
Earnings Per Share [Abstract] |
Schedule of Computation of Net Income per Share | The following table sets forth the basic and diluted net income attributable to Allegro MicroSystems, Inc. per share. The number of shares of common stock reflected in the calculation is the total shares of common stock (vested and unvested) held on the IPO date, after the Common Stock Conversion.
| Three-Month Period Ended |  | Nine-Month Period Ended
| December 24, 2021 |  | December 25, 2020 |  | December 24, 2021 |  | December 25, 2020
Net income attributable to Allegro MicroSystems, Inc. | $ | 32,936 |  |  | $ | (5,095) |  |  | $ | 93,791 |  |  | $ | 9,309 |
Net income attributable to common stockholders | 32,973 |  |  | (5,060) |  |  | 93,903 |  |  | 9,412 |
Basic weighted average shares of common stock | 189,736,901 |  |  | 124,363,078 |  |  | 189,665,324 |  |  | 48,121,026 |
Dilutive effect of common stock equivalents | 2,331,321 |  |  | — |  |  | 2,013,627 |  |  | 123,517,761 |
Diluted weighted average shares of common stock | 192,068,222 |  |  | 124,363,078 |  |  | 191,678,951 |  |  | 171,638,787 |
Basic net income attributable to Allegro MicroSystems, Inc. per share | $ | 0.17 |  |  | $ | (0.04) |  |  | $ | 0.49 |  |  | $ | 0.19 |
Basic net income attributable to common stockholders per share | $ | 0.17 |  |  | $ | (0.04) |  |  | $ | 0.50 |  |  | $ | 0.20 |
Diluted net income attributable to Allegro MicroSystems, Inc. per share | $ | 0.17 |  |  | $ | (0.04) |  |  | $ | 0.49 |  |  | $ | 0.05 |
Diluted net income attributable to common stockholders per share | $ | 0.17 |  |  | $ | (0.04) |  |  | $ | 0.49 |  |  | $ | 0.05 |
Schedule of Issuable Weighted Average Share Information | The following table represents issuable weighted average share information for the respective periods:
| Three-Month Period Ended |  | Nine-Month Period Ended
| December 24, 2021 |  | December 25, 2020 |  | December 24, 2021 |  | December 25, 2020
Restricted stock units | 1,199,816 |  |  | 377,767 |  |  | 1,046,229 |  |  | 125,922 |
Performance stock units | 1,117,532 |  |  | 422,768 |  |  | 959,084 |  |  | 140,923 |
Employee stock purchase plan | 13,973 |  |  | — |  |  | 8,314 |  |  | — |
Shares related to Common Stock Conversion | — |  |  | 56,752,747 |  |  | — |  |  | 123,250,916 |
Total | 2,331,321 |  |  | 57,553,282 |  |  | 2,013,627 |  |  | 123,517,761 |

X
- References No definition available. + Details
Name: | us-gaap_EarningsPerShareAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of an entity's basic and diluted earnings per share calculations, including a reconciliation of numerators and denominators of the basic and diluted per-share computations for income from continuing operations. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=124432515&loc=d3e3550-109257 + Details
Name: | us-gaap_ScheduleOfEarningsPerShareBasicAndDilutedTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of the weighted average number of shares used in calculating basic net earnings per share (or unit) and diluted earnings per share (or unit). + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=124432515&loc=d3e3550-109257 + Details
Name: | us-gaap_ScheduleOfWeightedAverageNumberOfSharesTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration