| Component: (Network and Table) | |
|---|---|
| Network | 2410402 - Disclosure - Stockholders' Equity - Changes in Accumulated Other Comprehensive Income (Loss) (Detail) (http://www.immersion.com/role/StockholdersEquityChangesInAccumulatedOtherComprehensiveIncomeLossDetail) |
| Table | Accumulated Other Comprehensive Income (Loss) [Table] |
| Reporting Entity [Axis] | 0001058811 (http://www.sec.gov/CIK) |
| Accumulated Other Comprehensive Income (Loss) [Line Items] | Period [Axis] | ||
|---|---|---|---|
2016-01-01 - 2016-12-31 | |||
| Equity Components [Axis] | |||
| Unrealized Gains and Losses on Available-for Sale Securities | Foreign Currency Items | Equity Component [Domain] | |
AOCI Attributable to Parent, Net of Tax [Roll Forward] | |||
Beginning balance | ( | 86,000 | |
Reclassification from Accumulated Other Comprehensive Income, Current Period, Net of Tax [Abstract] | |||
Other comprehensive income before reclassifications | |||
Amounts reclassified from accumulated other comprehensive income (loss) | |||
Net current period other comprehensive income (loss) | |||
Ending Balance | ( | 115,000 | |