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Commitments and Contingencies (Tables) | 9 Months Ended
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Sep. 28, 2019
Commitments And Contingencies Disclosure [Abstract] |
Warranty Liabilities | The activity in the accrued warranty liabilities account was as follows (in thousands):
|  | Nine Months Ended |
|  | September 28, 2019 |  |  | September 29, 2018 |
Balance at beginning of year |  | $ | 10,389 |  |  | $ | 9,320 |
Additions charged to costs and expenses for current-year sales |  |  | 8,033 |  |  |  | 9,275 |
Deductions from reserves |  |  | (8,159 | ) |  |  | (8,461 | )
Changes in liability for pre-existing warranties during the current year, including expirations |  |  | 1,189 |  |  |  | 177 |
Balance at end of period |  | $ | 11,452 |  |  | $ | 10,311 |

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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=68068213&loc=d3e12565-110249 + Details
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