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Summary of Notes and Accounts Receivable (Detail) - USD ($) $ in Thousands | Dec. 31, 2015 | Dec. 31, 2014 | Dec. 31, 2013 | Dec. 31, 2012
--- | --- | --- | --- | ---
Accounts and Other Receivables [Line Items] |  |  |  |
Notes receivable | $ 16 | $ 192 |  |
Trade accounts receivable | 61,293 | 31,256 |  |
Trade Accounts And Notes Receivable Gross Current | 61,309 | 31,448 |  |
Allowance for doubtful accounts | (775) | (1,167) | $ (1,275) | $ (1,634)
Allowance for sales returns and discounts | (1,555) | (1,427) | $ (1,059) | $ (1,919)
Notes and accounts receivable, net | $ 58,979 | $ 28,854 |  |

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- Definition The aggregate of amounts due from customers or clients, within one year of the balance sheet date (or one operating cycle, if longer), for goods or services that have been delivered or sold in the normal course of business and an amount representing an agreement for an unconditional promise by the maker to pay the entity (holder) a definite sum of money at a future date within one year of the balance sheet, reduced to their estimated net realizable fair value by an allowance established by the entity of the amount it deems uncertain of collection and net of any write-downs taken for collection uncertainty on the part of the holder, respectively. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.3,4) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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