XML 30 R20.htm IDEA: XBRL DOCUMENT
v3.10.0.1

Cash, Cash Equivalents and Investments (Tables) | 9 Months Ended
--- | ---
Sep. 30, 2018
Cash, Cash Equivalents and Investments |
Schedule of Securities Classified as Cash, Cash Equivalents and Short-term Investments | Securities classified as cash, cash equivalents and short-term investments as of September 30, 2018 and December 31, 2017, are summarized below (in thousands). Estimated fair value is based on quoted market prices for these investments.
|  | September 30, 2018
|  |  |  | Gross Unrealized |  |  |
|  | Amortized Cost |  | Gains |  | Losses |  | Fair Value
Cash and cash equivalents: |  |  |  |  |  |  |  |  |  |  |  |
Cash |  | $ | 2,787 |  |  | — |  |  | — |  | $ | 2,787
Money market funds |  |  | 66,235 |  |  | — |  |  | — |  |  | 66,235
Corporate bonds |  |  | 1,999 |  |  | — |  |  | — |  |  | 1,999
Commercial paper |  |  | 3,994 |  |  | — |  |  | — |  |  | 3,994
Total cash and cash equivalents |  | $ | 75,015 |  | $ | — |  | $ | — |  | $ | 75,015
Short-term investments |  |  |  |  |  |  |  |  |  |  |  |
U.S. treasury securities |  |  | 7,959 |  |  | — |  |  | (2) |  |  | 7,957
Corporate bonds |  |  | 34,449 |  |  | — |  |  | (9) |  |  | 34,440
Commercial paper |  |  | 61,116 |  |  | — |  |  | (5) |  |  | 61,111
Asset-backed securities |  |  | 7,884 |  |  | — |  |  | (1) |  |  | 7,883
Total short-term investments |  | $ | 111,408 |  | $ | — |  | $ | (17) |  | $ | 111,391
Total cash equivalents and investments |  | $ | 186,423 |  | $ | — |  | $ | (17) |  | $ | 186,406
|  | December 31, 2017
|  |  |  | Gross Unrealized |  |  |
|  | Amortized Cost |  | Gains |  | Losses |  | Fair Value
Cash and cash equivalents: |  |  |  |  |  |  |  |  |  |  |  |
Cash |  | $ | 5,882 |  | $ | — |  | $ | — |  | $ | 5,882
Money market funds |  |  | 68,651 |  |  | — |  |  | — |  |  | 68,651
Commercial paper |  |  | 850 |  |  | — |  |  | — |  |  | 850
Total cash equivalents and investments |  | $ | 75,383 |  | $ | — |  | $ | — |  | $ | 75,383
Short-term investments |  |  |  |  |  |  |  |  |  |  |  |
U.S. treasury securities |  | $ | 3,994 |  |  | — |  |  | (1) |  | $ | 3,993
Corporate bonds |  |  | 26,853 |  |  | — |  |  | (26) |  |  | 26,827
Commercial paper |  |  | 19,584 |  |  | — |  |  | (14) |  |  | 19,570
Asset-backed securities |  |  | 8,209 |  |  | — |  |  | (6) |  |  | 8,203
Total short-term investments |  | $ | 58,640 |  | $ | — |  | $ | (47) |  | $ | 58,593
Total cash equivalents and investments |  | $ | 134,023 |  | $ | — |  | $ | (47) |  | $ | 133,976

X
- References No definition available. + Details
Name: | us-gaap_CashAndCashEquivalentsAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of the components of cash, cash equivalents, and investments. + References No definition available. + Details
Name: | us-gaap_ScheduleOfCashCashEquivalentsAndShortTermInvestmentsTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration