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Commitments and Contingencies (Tables) | 9 Months Ended
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Sep. 28, 2018
Commitments and Contingencies Disclosure [Abstract] |
Future Minimum Lease Payments Under Non-cancelable Operating Leases | Future minimum lease payments under non-cancelable operating leases as of September 28, 2018 are as follows (in thousands):
Years ending December 31, |
2018 (remaining three months) | $ | 3,433 |
2019 | 13,091 |
2020 | 9,921 |
2021 | 4,276 |
2022 | 2,525 |
Thereafter | 9,325 |
Total | $ | 42,571 |
Summary of Warranty Accrual Included in Accrued Liabilities | Activity for the Company’s warranty accrual, which is included in “Accrued and other current liabilities”, is summarized below (in thousands):
| Three months ended | Nine months ended
| September 28, 2018 |  | September 29, 2017 | September 28, 2018 |  | September 29, 2017
Balance at beginning of period | $ | 4,647 |  |  | $ | 4,142 |  | $ | 4,381 |  |  | $ | 4,862 |
Accrual for current period warranties | 1,563 |  |  | 1,354 |  | 5,013 |  |  | 3,849 |
Warranty costs incurred | (1,461 | ) |  | (1,155 | ) | (4,645 | ) |  | (4,370 | )
Balance at end of period | $ | 4,749 |  |  | $ | 4,341 |  | $ | 4,749 |  |  | $ | 4,341 |

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- Definition Tabular disclosure of future minimum payments required in the aggregate and for each of the five succeeding fiscal years for operating leases having initial or remaining noncancelable lease terms in excess of one year and the total minimum rentals to be received in the future under noncancelable subleases as of the balance sheet date. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 840 -SubTopic 20 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=77902758&loc=d3e41502-112717 + 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=68068213&loc=d3e12565-110249 + Details
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