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Supplementary Balance Sheet Information | 9 Months Ended
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Oct. 01, 2021
Organization Consolidation And Presentation Of Financial Statements [Abstract] |
Supplementary Balance Sheet Information | 9. Supplementary Balance Sheet Information The following tables provide the details of selected balance sheet items as of the periods indicated (in thousands): Inventories
| October 1, |  |  | December 31, |
| 2021 |  |  | 2020 |
Raw materials | $ | 75,445 |  |  | $ | 55,657 |
Work-in-process |  | 21,409 |  |  |  | 15,487 |
Finished goods |  | 20,781 |  |  |  | 20,234 |
Demo and consigned inventory |  | 1,787 |  |  |  | 1,359 |
Total inventories | $ | 119,422 |  |  | $ | 92,737 |
Accrued Expenses and Other Current Liabilities
| October 1, |  |  | December 31, |
| 2021 |  |  | 2020 |
Accrued compensation and benefits | $ | 20,546 |  |  | $ | 12,510 |
Accrued warranty |  | 4,527 |  |  |  | 4,919 |
Contract liabilities, current portion |  | 9,190 |  |  |  | 6,173 |
Finance lease obligations |  | 590 |  |  |  | 9,720 |
Accrued earn-out and contingent considerations |  | 55,469 |  |  |  | 10,796 |
Other |  | 14,184 |  |  |  | 9,662 |
Total | $ | 104,506 |  |  | $ | 53,780 |
Accrued Warranty
| Nine Months Ended |
| October 1, |  |  | October 2, |
| 2021 |  |  | 2020 |
Balance at beginning of the period | $ | 4,919 |  |  | $ | 5,756 |
Provision charged to cost of revenue |  | 1,215 |  |  |  | 1,255 |
Warranty liabilities acquired from acquisitions |  | 541 |  |  |  | — |
Use of provision |  | (2,075 | ) |  |  | (1,941 | )
Foreign currency exchange rate changes |  | (73 | ) |  |  | 32 |
Balance at end of the period | $ | 4,527 |  |  | $ | 5,102 |
Other Long Term Liabilities
| October 1, |  |  | December 31, |
| 2021 |  |  | 2020 |
Finance lease obligations | $ | 5,461 |  |  | $ | 5,908 |
Accrued pension liabilities |  | 326 |  |  |  | 1,511 |
Accrued contingent considerations |  | 3,605 |  |  |  | 7,276 |
Other |  | 2,352 |  |  |  | 2,471 |
Total | $ | 11,744 |  |  | $ | 17,166 |

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- Definition The entire disclosure for supplemental balance sheet disclosures, including descriptions and amounts for assets, liabilities, and equity. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -URI http://asc.fasb.org/topic&trid=2122208 + Details
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