XML 45 R35.htm IDEA: XBRL DOCUMENT
v3.5.0.2

Fair Values on Financial Assets and Liabilities (Detail) - USD ($) $ in Thousands | Jun. 30, 2016 | Dec. 31, 2015
--- | --- | ---
Fair value of financial assets and liabilities |  |
Total financial assets | $ 80,942 | $ 96,163
Level 1 |  |
Fair value of financial assets and liabilities |  |
Total financial assets | 4,592 | 70,465
Level 2 |  |
Fair value of financial assets and liabilities |  |
Total financial assets | 76,350 | 25,698
Money market funds |  |
Fair value of financial assets and liabilities |  |
Total financial assets | 105 | 59,302
Money market funds | Level 1 |  |
Fair value of financial assets and liabilities |  |
Total financial assets | 105 | 59,302
United States government agency securities |  |
Fair value of financial assets and liabilities |  |
Total financial assets | 18,982 |
United States government agency securities | Level 2 |  |
Fair value of financial assets and liabilities |  |
Total financial assets | 18,982 |
Corporate debt securities |  |
Fair value of financial assets and liabilities |  |
Total financial assets | 57,368 | 25,698
Corporate debt securities | Level 2 |  |
Fair value of financial assets and liabilities |  |
Total financial assets | 57,368 | 25,698
Marketable equity securities |  |
Fair value of financial assets and liabilities |  |
Total financial assets | 4,487 | 11,163
Marketable equity securities | Level 1 |  |
Fair value of financial assets and liabilities |  |
Total financial assets | $ 4,487 | $ 11,163

X
- Definition Amount of investment in debt and equity securities categorized neither as held-to-maturity nor trading. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 25 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=65884222&loc=d3e22054-111558 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 5 -Subparagraph (aa) -URI http://asc.fasb.org/extlink&oid=73527792&loc=d3e27232-111563 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=66010992&loc=d3e26610-111562 + Details
Name: | us-gaap_AvailableForSaleSecurities
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

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

X
- Details
Name: | us-gaap_FairValueByFairValueHierarchyLevelAxis=us-gaap_FairValueInputsLevel1Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FairValueByFairValueHierarchyLevelAxis=us-gaap_FairValueInputsLevel2Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FairValueByAssetClassAxis=us-gaap_MoneyMarketFundsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FairValueByAssetClassAxis=us-gaap_USGovernmentAgenciesDebtSecuritiesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FairValueByAssetClassAxis=us-gaap_CorporateDebtSecuritiesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FairValueByAssetClassAxis=us-gaap_EquitySecuritiesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |