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Product Warranties (Tables) | 3 Months Ended
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Mar. 31, 2018
Guarantees and Product Warranties [Abstract] |
Reconciliation of Changes in Aggregate Product Warranty Accrual | The following is a reconciliation of the changes in the aggregate product warranty accrual during the three months ended March 31, 2018 and 2017:
| Three Months Ended March 31,
(in thousands) | 2018 |  | 2017
Product warranty accrual, beginning | $ | 4,186 |  |  | $ | 2,677 |
Warranty charges incurred, net | (526 | ) |  | (239 | )
Provision for warranty charges | 730 |  |  | 445 |
Product warranty accrual, ending | $ | 4,390 |  |  | $ | 2,883 |

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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://www.xbrl.org/2003/role/presentationRef -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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