Balance Sheet Components - Additional Information (Detail) $ in Millions |
1 Months Ended | 3 Months Ended | ||
|---|---|---|---|---|
|
Sep. 30, 2016
Employee
|
Dec. 31, 2015
Employee
|
Sep. 30, 2016
USD ($)
|
Dec. 31, 2015
USD ($)
|
|
| Payables And Accruals [Abstract] | ||||
| Reduction of full-time employees | Employee | 5 | 40 | ||
| Severance benefits | $ 0.7 | $ 2.5 | ||
| Non-cash stock compensation expense | $ 0.2 | $ 0.2 | ||
| X | ||||||||||
- References No definition available.
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| X | ||||||||||
- Definition The expected number of positions to be eliminated as a result of restructuring activities. No definition available.
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| X | ||||||||||
- Definition Amount of expenses for special or contractual termination benefits provided to current employees involuntarily terminated under a benefit arrangement associated exit or disposal activities pursuant to an authorized plan. Excludes expenses related to one-time termination benefits, a discontinued operation or an asset retirement obligation. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
- Definition The noncash expense that accounts for the value of stock or unit options distributed to employees as compensation. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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