|
Fair Value (Details) (USD $)
In Thousands, unless otherwise specified
|
Mar. 31, 2015
|
Dec. 31, 2014
|
| Fair Value |
|
|
| Investments at fair value |
$ 133,034us-gaap_InvestmentsFairValueDisclosure
|
$ 132,957us-gaap_InvestmentsFairValueDisclosure
|
| U S Treasury Securities |
|
|
| Fair Value |
|
|
| Investments at fair value |
|
2,010us-gaap_InvestmentsFairValueDisclosure
/ us-gaap_InvestmentTypeAxis
= us-gaap_USTreasurySecuritiesMember
|
| U S Government Sponsored Enterprises Debt Securities |
|
|
| Fair Value |
|
|
| Investments at fair value |
42,129us-gaap_InvestmentsFairValueDisclosure
/ us-gaap_InvestmentTypeAxis
= us-gaap_USGovernmentSponsoredEnterprisesDebtSecuritiesMember
|
45,786us-gaap_InvestmentsFairValueDisclosure
/ us-gaap_InvestmentTypeAxis
= us-gaap_USGovernmentSponsoredEnterprisesDebtSecuritiesMember
|
| Corporate Bond Securities And Commercial Paper |
|
|
| Fair Value |
|
|
| Investments at fair value |
90,905us-gaap_InvestmentsFairValueDisclosure
/ us-gaap_InvestmentTypeAxis
= rigl_CorporateBondSecuritiesAndCommercialPaperMember
|
85,161us-gaap_InvestmentsFairValueDisclosure
/ us-gaap_InvestmentTypeAxis
= rigl_CorporateBondSecuritiesAndCommercialPaperMember
|
| Fair Value Inputs Level1 |
|
|
| Fair Value |
|
|
| Investments at fair value |
26,978us-gaap_InvestmentsFairValueDisclosure
/ us-gaap_FairValueByFairValueHierarchyLevelAxis
= us-gaap_FairValueInputsLevel1Member
|
10,027us-gaap_InvestmentsFairValueDisclosure
/ us-gaap_FairValueByFairValueHierarchyLevelAxis
= us-gaap_FairValueInputsLevel1Member
|
| Fair Value Inputs Level2 |
|
|
| Fair Value |
|
|
| Investments at fair value |
133,034us-gaap_InvestmentsFairValueDisclosure
/ us-gaap_FairValueByFairValueHierarchyLevelAxis
= us-gaap_FairValueInputsLevel2Member
|
132,957us-gaap_InvestmentsFairValueDisclosure
/ us-gaap_FairValueByFairValueHierarchyLevelAxis
= us-gaap_FairValueInputsLevel2Member
|
| Estimate Of Fair Value Fair Value Disclosure |
|
|
| Fair Value |
|
|
| Investments at fair value |
160,012us-gaap_InvestmentsFairValueDisclosure
/ us-gaap_FairValueByFairValueHierarchyLevelAxis
= us-gaap_EstimateOfFairValueFairValueDisclosureMember
|
142,984us-gaap_InvestmentsFairValueDisclosure
/ us-gaap_FairValueByFairValueHierarchyLevelAxis
= us-gaap_EstimateOfFairValueFairValueDisclosureMember
|
| Fair Value Measurements Recurring | Money Market Funds |
|
|
| Fair Value |
|
|
| Investments at fair value |
26,978us-gaap_InvestmentsFairValueDisclosure
/ us-gaap_FairValueByMeasurementFrequencyAxis
= us-gaap_FairValueMeasurementsRecurringMember
/ us-gaap_InvestmentTypeAxis
= us-gaap_MoneyMarketFundsMember
|
10,027us-gaap_InvestmentsFairValueDisclosure
/ us-gaap_FairValueByMeasurementFrequencyAxis
= us-gaap_FairValueMeasurementsRecurringMember
/ us-gaap_InvestmentTypeAxis
= us-gaap_MoneyMarketFundsMember
|
| Fair Value Measurements Recurring | U S Treasury Securities |
|
|
| Fair Value |
|
|
| Investments at fair value |
|
2,010us-gaap_InvestmentsFairValueDisclosure
/ us-gaap_FairValueByMeasurementFrequencyAxis
= us-gaap_FairValueMeasurementsRecurringMember
/ us-gaap_InvestmentTypeAxis
= us-gaap_USTreasurySecuritiesMember
|
| Fair Value Measurements Recurring | U S Government Sponsored Enterprises Debt Securities |
|
|
| Fair Value |
|
|
| Investments at fair value |
42,129us-gaap_InvestmentsFairValueDisclosure
/ us-gaap_FairValueByMeasurementFrequencyAxis
= us-gaap_FairValueMeasurementsRecurringMember
/ us-gaap_InvestmentTypeAxis
= us-gaap_USGovernmentSponsoredEnterprisesDebtSecuritiesMember
|
45,786us-gaap_InvestmentsFairValueDisclosure
/ us-gaap_FairValueByMeasurementFrequencyAxis
= us-gaap_FairValueMeasurementsRecurringMember
/ us-gaap_InvestmentTypeAxis
= us-gaap_USGovernmentSponsoredEnterprisesDebtSecuritiesMember
|
| Fair Value Measurements Recurring | Corporate Bond Securities And Commercial Paper |
|
|
| Fair Value |
|
|
| Investments at fair value |
90,905us-gaap_InvestmentsFairValueDisclosure
/ us-gaap_FairValueByMeasurementFrequencyAxis
= us-gaap_FairValueMeasurementsRecurringMember
/ us-gaap_InvestmentTypeAxis
= rigl_CorporateBondSecuritiesAndCommercialPaperMember
|
85,161us-gaap_InvestmentsFairValueDisclosure
/ us-gaap_FairValueByMeasurementFrequencyAxis
= us-gaap_FairValueMeasurementsRecurringMember
/ us-gaap_InvestmentTypeAxis
= rigl_CorporateBondSecuritiesAndCommercialPaperMember
|
| Fair Value Measurements Recurring | Fair Value Inputs Level1 | Money Market Funds |
|
|
| Fair Value |
|
|
| Investments at fair value |
26,978us-gaap_InvestmentsFairValueDisclosure
/ us-gaap_FairValueByFairValueHierarchyLevelAxis
= us-gaap_FairValueInputsLevel1Member
/ us-gaap_FairValueByMeasurementFrequencyAxis
= us-gaap_FairValueMeasurementsRecurringMember
/ us-gaap_InvestmentTypeAxis
= us-gaap_MoneyMarketFundsMember
|
10,027us-gaap_InvestmentsFairValueDisclosure
/ us-gaap_FairValueByFairValueHierarchyLevelAxis
= us-gaap_FairValueInputsLevel1Member
/ us-gaap_FairValueByMeasurementFrequencyAxis
= us-gaap_FairValueMeasurementsRecurringMember
/ us-gaap_InvestmentTypeAxis
= us-gaap_MoneyMarketFundsMember
|
| Fair Value Measurements Recurring | Fair Value Inputs Level2 | U S Treasury Securities |
|
|
| Fair Value |
|
|
| Investments at fair value |
|
2,010us-gaap_InvestmentsFairValueDisclosure
/ us-gaap_FairValueByFairValueHierarchyLevelAxis
= us-gaap_FairValueInputsLevel2Member
/ us-gaap_FairValueByMeasurementFrequencyAxis
= us-gaap_FairValueMeasurementsRecurringMember
/ us-gaap_InvestmentTypeAxis
= us-gaap_USTreasurySecuritiesMember
|
| Fair Value Measurements Recurring | Fair Value Inputs Level2 | U S Government Sponsored Enterprises Debt Securities |
|
|
| Fair Value |
|
|
| Investments at fair value |
42,129us-gaap_InvestmentsFairValueDisclosure
/ us-gaap_FairValueByFairValueHierarchyLevelAxis
= us-gaap_FairValueInputsLevel2Member
/ us-gaap_FairValueByMeasurementFrequencyAxis
= us-gaap_FairValueMeasurementsRecurringMember
/ us-gaap_InvestmentTypeAxis
= us-gaap_USGovernmentSponsoredEnterprisesDebtSecuritiesMember
|
45,786us-gaap_InvestmentsFairValueDisclosure
/ us-gaap_FairValueByFairValueHierarchyLevelAxis
= us-gaap_FairValueInputsLevel2Member
/ us-gaap_FairValueByMeasurementFrequencyAxis
= us-gaap_FairValueMeasurementsRecurringMember
/ us-gaap_InvestmentTypeAxis
= us-gaap_USGovernmentSponsoredEnterprisesDebtSecuritiesMember
|
| Fair Value Measurements Recurring | Fair Value Inputs Level2 | Corporate Bond Securities And Commercial Paper |
|
|
| Fair Value |
|
|
| Investments at fair value |
$ 90,905us-gaap_InvestmentsFairValueDisclosure
/ us-gaap_FairValueByFairValueHierarchyLevelAxis
= us-gaap_FairValueInputsLevel2Member
/ us-gaap_FairValueByMeasurementFrequencyAxis
= us-gaap_FairValueMeasurementsRecurringMember
/ us-gaap_InvestmentTypeAxis
= rigl_CorporateBondSecuritiesAndCommercialPaperMember
|
$ 85,161us-gaap_InvestmentsFairValueDisclosure
/ us-gaap_FairValueByFairValueHierarchyLevelAxis
= us-gaap_FairValueInputsLevel2Member
/ us-gaap_FairValueByMeasurementFrequencyAxis
= us-gaap_FairValueMeasurementsRecurringMember
/ us-gaap_InvestmentTypeAxis
= rigl_CorporateBondSecuritiesAndCommercialPaperMember
|