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Product Warranties (Tables) | 6 Months Ended
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Jun. 30, 2019
Guarantees and Product Warranties [Abstract] |
Product Warranty Activities | Product warranty activities were as follows:
|  | Six Months Ended June 30, |
|  | 2019 |  |  | 2018 |
Beginning of period |  | $ | 10,399 |  |  | $ | 10,104 |
Assumed product warranty liability from ESI Merger |  |  | 7,177 |  |  |  | — |
Provision for product warranties |  |  | 12,891 |  |  |  | 8,484 |
Direct and other charges to warranty liability |  |  | (14,418 | ) |  |  | (7,328 | )
End of period (1) |  | $ | 16,049 |  |  | $ | 11,260 |
(1) | As of June 30, 2019, short-term product warranty of $12,845 and long-term product warranty of $3,204 were included within other current liabilities and other liabilities, respectively, within the accompanying condensed consolidated balance sheet. As of June 30, 2018, short-term product warranty of $10,846 and long-term product warranty of $414 were included within other current liabilities and other liabilities, respectively, within the accompanying condensed consolidated balance sheet.

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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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