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Valuation and Qualifying Accounts (Detail) - USD ($) $ in Thousands | 12 Months Ended
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Dec. 31, 2015 | Dec. 31, 2014 | Dec. 31, 2013
Allowance for Doubtful Accounts |  |  |
Valuation And Qualifying Accounts Disclosure [Line Items] |  |  |
Balance at beginning of year | $ 2,847 | $ 1,807 | $ 2,474
Charged to Costs and Expenses | 4,174 | 2,043 | 1,723
Charged to Other Accounts | (123) | (105) | (8)
Inventory write off | (4,059) | (898) | (2,382)
Balance at end of year | 2,839 | 2,847 | 1,807
Valuation Allowance of Deferred Tax Assets |  |  |
Valuation And Qualifying Accounts Disclosure [Line Items] |  |  |
Balance at beginning of year | 18,037 | 2,199 | 2,199
Charged to Other Accounts | (2,436) | 16,674 |
Inventory write off | (2,183) | (836) |
Balance at end of year | 13,418 | 18,037 | 2,199
Inventory Valuation Reserve |  |  |
Valuation And Qualifying Accounts Disclosure [Line Items] |  |  |
Balance at beginning of year | 4,802 | 2,933 | 2,185
Charged to Costs and Expenses | 815 | 2,204 | 779
Charged to Other Accounts | (249) | (181) | (25)
Inventory write off | (1,060) | (154) | (6)
Balance at end of year | $ 4,308 | $ 4,802 | $ 2,933

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- Definition Total of allowances and reserves, the valuation and qualifying accounts that are either netted against the cost of an asset (in order to value it at its carrying value) or that reflect a liability established to represent expected future costs. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e24092-122690 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 09 -Article 12 + Details
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- Definition Total of the deductions in a given period to allowances and reserves, the valuation and qualifying accounts that are either netted against the cost of an asset (in order to value it at its carrying value) or that reflect a liability established to represent expected future costs, representing receivables written off as uncollectible and portions of the reserves utilized, respectively. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e24092-122690 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 09 -Article 12 + Details
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