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Schedule II - Valuation and Qualifying Accounts | 12 Months Ended
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Dec. 31, 2017
Valuation And Qualifying Accounts [Abstract] |
Schedule II - Valuation and Qualifying Accounts | SCHEDULE II VALUATION AND QUALIFYING ACCOUNTS
Column A |  | Column B |  |  | Column C |  |  | Column D |  |  | Column E |
(In thousands) |  | Balance at Beginning of Period |  |  | Charged to Costs & Expenses |  |  | Deductions |  |  | Balance at End of Period |
Year ended December 31, 2017 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Allowance for Doubtful Accounts |  | $ | — |  |  |  | — |  |  |  | — |  |  | $ | — |
Inventory Reserve |  | $ | 25,249 |  |  |  | 6,406 |  |  |  | 8,300 |  |  | $ | 23,355 |
Warranty Liability |  | $ | 8,548 |  |  |  | 6,951 |  |  |  | 5,775 |  |  | $ | 9,724 |
Deferred Tax Asset Valuation Allowance |  | $ | 6,149 |  |  |  | 18 |  |  |  | 161 |  |  | $ | 6,006 |
Year ended December 31, 2016 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Allowance for Doubtful Accounts |  | $ | 19 |  |  |  | — |  |  |  | 19 |  |  | $ | — |
Inventory Reserve |  | $ | 26,675 |  |  |  | 3,303 |  |  |  | 4,729 |  |  | $ | 25,249 |
Warranty Liability |  | $ | 8,739 |  |  |  | 8,561 |  |  |  | 8,752 |  |  | $ | 8,548 |
Deferred Tax Asset Valuation Allowance |  | $ | 7,250 |  |  |  | 69 |  |  |  | 1,170 |  |  | $ | 6,149 |
Year ended December 31, 2015 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Allowance for Doubtful Accounts |  | $ | 136 |  |  |  | 19 |  |  |  | 136 |  |  | $ | 19 |
Inventory Reserve |  | $ | 24,682 |  |  |  | 2,225 |  |  |  | 232 |  |  | $ | 26,675 |
Warranty Liability |  | $ | 8,415 |  |  |  | 2,998 |  |  |  | 2,674 |  |  | $ | 8,739 |
Deferred Tax Asset Valuation Allowance |  | $ | 7,463 |  |  |  | 81 |  |  |  | 294 |  |  | $ | 7,250 |

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- Definition The entire disclosure for any allowance and reserve accounts (their beginning and ending balances, as well as a reconciliation by type of activity during the period). Alternatively, disclosure of the required information may be within the footnotes to the financial statements or a supplemental schedule to the financial statements. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -URI http://asc.fasb.org/topic&trid=2122369 + Details
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- References No definition available. + Details
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