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Commitments and Contingencies (Tables) | 12 Months Ended
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Dec. 31, 2020
Commitments And Contingencies Disclosure [Abstract] |
Reconciliation of Changes in Accrued Warranty Costs | The following is a reconciliation of the changes in accrued warranty costs:
|  | Year Ended December 31, |
|  | 2020 |  |  | 2019 |
Balance at beginning of year |  | $ | 4,596 |  |  | $ | 4,514 |
Warranty claims paid |  |  | (2,598 | ) |  |  | (584 | )
Warranty expense for products shipped during the current period |  |  | 1,223 |  |  |  | 2,370 |
Adjustments to warranty estimates from prior periods |  |  | (893 | ) |  |  | (1,660 | )
Acquisition of business |  |  | — |  |  |  | 21 |
Adjustments due to currency translation |  |  | 63 |  |  |  | (65 | )
Balance at end of year |  | $ | 2,391 |  |  | $ | 4,596 |

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