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Subsequent Event - Additional Information (Detail) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands |  |  | 3 Months Ended
--- | --- | --- | ---
Oct. 19, 2015 | Oct. 18, 2015 | Jan. 02, 2016
Subsequent Event | Prior To Second Anniversary |  |  |
Subsequent Event [Line Items] |  |  |
Percentage of options shares to be transferred |  | 20.00% |
Subsequent Event | Prior To Third Anniversary |  |  |
Subsequent Event [Line Items] |  |  |
Percentage of options shares to be transferred |  | 40.00% |
Subsequent Event | Prior To Fourth Anniversary |  |  |
Subsequent Event [Line Items] |  |  |
Percentage of options shares to be transferred |  | 60.00% |
Subsequent Event | Prior To Fifth Anniversary |  |  |
Subsequent Event [Line Items] |  |  |
Percentage of options shares to be transferred |  | 80.00% |
Subsequent Event | Option |  |  |
Subsequent Event [Line Items] |  |  |
Common stocks to be purchased through options |  | 3,513 |
Options exercisable price per share |  | $ 6.97 |
Subsequent Event | Strategic Collaboration Agreement |  |  |
Subsequent Event [Line Items] |  |  |
Initial term of agreement |  | 5 years |
Additional renewal terms |  | 1 year |
Subsequent Event | Share Purchase Agreement |  |  |
Subsequent Event [Line Items] |  |  |
Purchased shares | 6,362 |  |
Purchased shares, price per share | $ 6.79 |  |
Aggregate purchase price | $ 43,199 |  |
Share transfer restriction period |  | 2 years |
Minimum percentage of voting power transfer for change of control |  | 50.00% |
Subsequent Event | Share Purchase Agreement | Prior To Third Anniversary | Maximum |  |  |
Subsequent Event [Line Items] |  |  |
Percentage of shares transferable |  | 15.00% |
Subsequent Event | Share Purchase Agreement | Prior To Fourth Anniversary | Maximum |  |  |
Subsequent Event [Line Items] |  |  |
Percentage of shares transferable |  | 30.00% |
Subsequent Event | Share Purchase Agreement | Prior To Fifth Anniversary | Maximum |  |  |
Subsequent Event [Line Items] |  |  |
Percentage of shares transferable |  | 60.00% |
Subsequent Event | Share Purchase Agreement | Right of first offer, the "Securities Act" | Minimum |  |  |
Subsequent Event [Line Items] |  |  |
Percentage of Company's issued and outstanding Common Stock proposed for transfer |  | 1.00% |
Subsequent Event | Share Purchase Agreement | Right of first refusal, Competitor of the Company | Minimum |  |  |
Subsequent Event [Line Items] |  |  |
Percentage of Company's issued and outstanding Common Stock proposed for transfer |  | 1.00% |
Subsequent Event | Share Purchase Agreement | Right of first refusal | Minimum |  |  |
Subsequent Event [Line Items] |  |  |
Percentage of Company's issued and outstanding Common Stock proposed for transfer |  | 5.00% |
Scenario, Forecast |  |  |
Subsequent Event [Line Items] |  |  |
Stock option expense |  |  | $ 12,800

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- Definition The maximum number of shares (or other type of equity) originally approved (usually by shareholders and board of directors), net of any subsequent amendments and adjustments, for awards under the equity-based compensation plan. As stock or unit options and equity instruments other than options are awarded to participants, the shares or units remain authorized and become reserved for issuance under outstanding awards (not necessarily vested). + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (a)(3) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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- Definition The weighted-average price as of the balance sheet date at which grantees can acquire the shares reserved for issuance on vested portions of options outstanding and currently exercisable under the stock option plan. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(1)(iii) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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- Definition The noncash expense that accounts for the value of stock or unit options distributed to employees as compensation. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=56944662&loc=d3e3602-108585 + Details
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- Definition Detail information of subsequent event by type. User is expected to use existing line items from elsewhere in the taxonomy as the primary line items for this disclosure, which is further associated with dimension and member elements pertaining to a subsequent event. + References No definition available. + Details
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