XML 32 R19.htm IDEA: XBRL DOCUMENT
v3.10.0.1

Balance Sheet Components (Tables) | 6 Months Ended
--- | ---
Jun. 30, 2018
Organization Consolidation And Presentation Of Financial Statements [Abstract] |
Schedule of Cash and Cash Equivalents | Cash and cash equivalents consisted of the following (in thousands):
|  | June 30, 2018 |  |  | December 31, 2017 |
Cash |  | $ | 63,516 |  |  | $ | 103,716 |
Money market funds |  |  | 580,287 |  |  |  | 569,942 |
Total cash and cash equivalents |  | $ | 643,803 |  |  | $ | 673,658 |
Summary of Amortized Cost, Gross Unrealized Holding Gains or Losses, and Fair Value of Available-for-Sale Investments | The Company’s investments consist of available-for-sale debt investments and marketable equity investments. The amortized cost, gross unrealized holding gains or losses, and fair value of the Company’s available-for-sale investments by major investments type are summarized in the tables below (in thousands):
|  | June 30, 2018 |
|  | Amortized Cost |  |  | Gross Unrealized Holding Gains |  |  | Gross Unrealized Holding Losses |  |  | Fair Value |
Corporate bonds |  | $ | 28,132 |  |  | $ | — |  |  | $ | (38 | ) |  | $ | 28,094 |
Bond and mutual funds |  |  | 10,341 |  |  |  | 36 |  |  |  | — |  |  |  | 10,377 |
Equity investments |  |  | 126 |  |  |  | 84 |  |  |  | — |  |  |  | 210 |
Total investments |  | $ | 38,599 |  |  | $ | 120 |  |  | $ | (38 | ) |  | $ | 38,681 |
|  | December 31, 2017 |
|  | Amortized Cost |  |  | Gross Unrealized Holding Gains |  |  | Gross Unrealized Holding Losses |  |  | Fair Value |
Corporate bonds |  | $ | 53,985 |  |  | $ | 4 |  |  | $ | (46 | ) |  | $ | 53,943 |
Bond and mutual funds |  |  | 17,249 |  |  |  | 1,153 |  |  |  | — |  |  |  | 18,402 |
Equity investments |  |  | 126 |  |  |  | 95 |  |  |  | — |  |  |  | 221 |
Total investments |  | $ | 71,360 |  |  | $ | 1,252 |  |  | $ | (46 | ) |  | $ | 72,566 |
Schedule of Accrued Liabilities | Accrued liabilities consisted of the following (in thousands):
|  | June 30, 2018 |  |  | December 31, 2017 |
Preclinical and clinical trial accruals |  | $ | 23,893 |  |  | $ | 32,321 |
Payroll and related accruals |  |  | 12,631 |  |  |  | 18,810 |
Property taxes and other |  |  | 1,843 |  |  |  | 4,201 |
Professional services |  |  | 2,370 |  |  |  | 1,991 |
Other |  |  | 8,755 |  |  |  | 6,458 |
Total accrued liabilities |  | $ | 49,492 |  |  | $ | 63,781 |

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

X
- Definition Tabular disclosure of the components of accrued liabilities. + References No definition available. + Details
Name: | us-gaap_ScheduleOfAccruedLiabilitiesTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of the reconciliation of available-for-sale securities from cost basis to fair value. + References No definition available. + Details
Name: | us-gaap_ScheduleOfAvailableForSaleSecuritiesReconciliationTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

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