Related Party Transactions - Additional Information (Detail) - USD ($) $ in Millions |
12 Months Ended | ||
|---|---|---|---|
Dec. 31, 2016 |
Dec. 31, 2015 |
Dec. 31, 2014 |
|
| Related Party Transaction [Line Items] | |||
| Stock options granted to purchase | 1,635,250 | 502,047 | 382,097 |
| Chief Executive Officer | |||
| Related Party Transaction [Line Items] | |||
| Consulting services paid | $ 0.5 | ||
| Stock options granted to purchase | 135,000 | ||
| Accounts payable, related parties | $ 0.4 | ||
| X | ||||||||||
- Definition Consulting services paid to related party. No definition available.
|
| X | ||||||||||
- Definition Carrying amount as of the balance sheet date of obligations due all related parties. For classified balance sheets, represents the current portion of such liabilities (due within one year or within the normal operating cycle if longer). Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. No definition available.
|
| X | ||||||||||
- Definition Gross number of share options (or share units) granted during the period. No definition available.
|
| X | ||||||||||
- Details
|