Cash, Cash Equivalents and Investments - Summary of Available-for-sale Securities' Fair Value and Gross Unrealized Losses (Details) - USD ($) $ in Thousands |
Sep. 30, 2016 |
Dec. 31, 2015 |
|---|---|---|
| Fair Value | ||
| Twelve Months or Less | $ 33,240 | $ 81,045 |
| More than Twelve Months | 8,843 | 8,531 |
| Total | 42,083 | 89,576 |
| Gross Unrealized Losses | ||
| Twelve Months or Less | (12) | (295) |
| More than Twelve Months | (7) | (54) |
| Total | (19) | (349) |
| Corporate debt securities | ||
| Fair Value | ||
| Twelve Months or Less | 33,240 | 64,804 |
| More than Twelve Months | 8,843 | 8,531 |
| Total | 42,083 | 73,335 |
| Gross Unrealized Losses | ||
| Twelve Months or Less | (12) | (293) |
| More than Twelve Months | (7) | (54) |
| Total | $ (19) | (347) |
| U.S. government and government agency debt securities | ||
| Fair Value | ||
| Twelve Months or Less | 16,241 | |
| More than Twelve Months | 0 | |
| Total | 16,241 | |
| Gross Unrealized Losses | ||
| Twelve Months or Less | (2) | |
| More than Twelve Months | 0 | |
| Total | $ (2) |
| X | ||||||||||
- Definition Amount of accumulated unrealized loss on investments in debt and equity securities classified as available-for-sale that have been in a continuous loss position for twelve months or longer. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition Amount of accumulated unrealized loss on investments in debt and equity securities classified as available-for-sale in a continuous loss position. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- References No definition available.
|
| X | ||||||||||
- Definition This item represents the aggregate fair value of investments in debt and equity securities in an unrealized loss position which are categorized neither as held-to-maturity nor trading securities. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- References No definition available.
|
| X | ||||||||||
- Definition Amount of accumulated unrealized loss on investments in debt and equity securities classified as available-for-sale that have been in a continuous loss position for less than twelve months. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition This item represents the aggregate fair value of investments in debt and equity securities categorized neither as held-to-maturity nor trading securities that have been in a continuous unrealized loss position for less than twelve months. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition This item represents the aggregate fair value of investments in debt and equity securities categorized neither as held-to-maturity nor trading securities that have been in a continuous unrealized loss position for twelve months or longer. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Details
|
| X | ||||||||||
- Details
|