Commitments and Contingencies - Schedule of Changes in Aggregate Product Warranty Liabilities (Details) - USD ($) $ in Thousands |
3 Months Ended | 12 Months Ended |
|---|---|---|
Mar. 31, 2018 |
Dec. 31, 2017 |
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| Commitments And Contingencies Disclosure [Abstract] | ||
| Product warranty liability at beginning of period | $ 6,171 | $ 3,480 |
| Accruals for warranties issued | 1,841 | 5,275 |
| Adjustments related to preexisting warranties (including changes in estimates) | 200 | 200 |
| Settlements made (in cash or in kind) | (967) | (2,784) |
| Product warranty liability at end of period | $ 7,245 | $ 6,171 |
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- References No definition available.
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| X | ||||||||||
- Definition Carrying value as of the balance sheet date of obligations incurred through that date and payable for estimated claims under standard and extended warranty protection rights granted to customers. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
- Definition Amount of decrease in the standard and extended product warranty accrual from payments made in cash or in kind to satisfy claims under the terms of the standard and extended product warranty. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
- Definition Amount of increase (decrease) in the standard and extended product warranty accrual from changes in estimates attributable to preexisting product warranties. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
- Definition Amount of increase in the standard and extended product warranty accrual from warranties issued. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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