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Summary of Significant Accounting Policies (Tables) | 12 Months Ended
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Jan. 01, 2022
Accounting Policies [Abstract] |
Property, Plant and Equipment | Property and equipment are stated at cost. Depreciation is calculated using the straight-line method over estimated useful lives as follows:
| Useful Lives
Buildings and building improvements | 7 to 39 years
Computer equipment and software | 2 to 12 years
Demonstration units | 3 years
Furniture and office equipment | 2 to 6 years
Leasehold improvements | Lesser of useful life or term of lease
Machinery, equipment and tooling | 3 to 10 years
Transportation, vehicles and other | 4 to 20 years
Property and equipment, net, consists of the following (in thousands):
| January 1, 2022 |  | January 2, 2021
Building and building improvements | $ | 142,132 |  |  | $ | 122,310 |
Machinery, equipment and tooling | 103,451 |  |  | 90,843 |
Land | 57,027 |  |  | 57,151 |
Transportation, vehicles and other | 33,082 |  |  | 33,175 |
Computer equipment and software | 32,450 |  |  | 24,693 |
Leasehold improvements | 21,894 |  |  | 19,295 |
Furniture and office equipment | 14,200 |  |  | 13,567 |
Demonstration units | 949 |  |  | 1,024 |
Construction-in-progress (CIP) | 25,109 |  |  | 44,589 |
Total property and equipment | 430,294 |  |  | 406,647 |
Accumulated depreciation | (157,501) |  |  | (134,136) |
Property and equipment, net | $ | 272,793 |  |  | $ | 272,511 |
Changes in Product Warranty Accrual | Changes in the product warranty accrual were as follows (in thousands):
| Year Ended
| January 1, 2022 |  | January 2, 2021 |  | December 28, 2019
Warranty accrual, beginning of period | $ | 2,740 |  |  | $ | 3,395 |  |  | $ | 1,910 |
Accrual for warranties issued | 2,219 |  |  | 832 |  |  | 1,715 |
Changes in pre-existing warranties (including changes in estimates) | (1,439) |  |  | 196 |  |  | 1,130 |
Settlements made | (1,033) |  |  | (1,683) |  |  | (1,360) |
Warranty accrual, end of period | $ | 2,487 |  |  | $ | 2,740 |  |  | $ | 3,395 |
Reconciliation of Basic Diluted Net Income Per Share | A computation of basic and diluted net income per share is as follows (in thousands, except per share data):
| Year Ended
| January 1, 2022 |  | January 2, 2021 |  | December 28, 2019
Net income: | $ | 229,647 |  |  | $ | 240,282 |  |  | $ | 196,216 |
Basic net income per share: |  |  |  |  |
Weighted-average shares outstanding - basic | 55,166 |  |  | 54,700 |  |  | 53,434 |
Net income per basic share | $ | 4.16 |  |  | $ | 4.39 |  |  | $ | 3.67 |
Diluted net income per share: |  |  |  |  |
Weighted-average shares outstanding - basic | 55,166 |  |  | 54,700 |  |  | 53,434 |
Diluted share equivalents: stock options, RSUs and PSUs | 2,516 |  |  | 3,337 |  |  | 3,666 |
Weighted-average shares outstanding - diluted | 57,682 |  |  | 58,037 |  |  | 57,100 |
Net income per diluted share | $ | 3.98 |  |  | $ | 4.14 |  |  | $ | 3.44 |

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- Definition Tabular disclosure of physical assets used in the normal conduct of business and not intended for resale. Includes, but is not limited to, balances by class of assets, depreciation and depletion expense and method used, including composite depreciation, and accumulated deprecation. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(13)) -URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 360 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6391035&loc=d3e2868-110229 + Details
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- Definition Tabular disclosure of the changes in the guarantor's aggregate product warranty liability, including the beginning balance of the aggregate product warranty liability, the aggregate reductions in that liability for payments made (in cash or in kind) under the warranty, the aggregate changes in the liability for accruals related to product warranties issued during the reporting period, the aggregate changes in the liability for accruals related to preexisting warranties (including adjustments related to changes in estimates), and the ending balance of the aggregate product warranty liability. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 460 -SubTopic 10 -Section 50 -Paragraph 8 -URI http://asc.fasb.org/extlink&oid=123368208&loc=d3e12565-110249 + Details
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