2.2.0.25truefalse40503 - Disclosure - Acquisitions (Schedule of Assets Acquired and Liabilities Assumed) (Details)truefalseIn Thousandsfalse1falsefalseUSDtruefalse{us-gaap_StatementScenarioAxis} : Marketed Products [Member]
{dei_LegalEntityAxis} : CV Therapeutics, Inc. [Member]
4/15/2009
USD ($)
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-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 141
-Paragraph 52
-Subparagraph c
Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 141
-Paragraph 53
-Subparagraph d
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-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 141
-Paragraph 51
-Subparagraph e
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-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 141
-Paragraph 51
-Subparagraph e
Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 141
-Paragraph 37
-Subparagraph a
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-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 141
-Paragraph 51
-Subparagraph e
Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 141
-Paragraph 37
-Subparagraph b
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-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 141
-Paragraph 51
-Subparagraph e
Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 141
-Paragraph 37
-Subparagraph c
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-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 141
-Paragraph 51
-Subparagraph e
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-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 141
-Paragraph 51
-Subparagraph e
Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 141
-Paragraph 37
-Subparagraph d
falsefalse10false0us-gaap_BusinessAcquisitionPurchasePriceAllocationOtherNoncurrentAssetsus-gaaptruedebitinstantNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalseverboselabel1truefalsefalse2016200020162falsefalsefalsefalsefalseMonetaryxbrli:monetaryItemTypemonetaryThe amount of acquisition cost of a business combination allocated to noncurrent assets of the acquired entity, except for property plant and equipment, intangible assets, and goodwill.Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 141
-Paragraph 51
-Subparagraph e
Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Emerging Issues Task Force (EITF)
-Number 98-1
Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 141
-Paragraph 37
-Subparagraph f
falsefalse11false0us-gaap_BusinessAcquisitionPurchasePriceAllocationCurrentLiabilitiesAccountsPayableus-gaaptruecreditinstantNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsetruenegated1truefalsefalse-5089000-5089falsefalsefalsefalsefalseMonetaryxbrli:monetaryItemTypemonetaryThe amount of acquisition cost of a business combination allocated to accounts payable of the acquired entity.Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 141
-Paragraph 51
-Subparagraph e
falsefalse12false0gild_BusinessAcquisitionPurchasePriceAllocationCurrentLiabilitiesAccruedAndOtherCurrentLiabilitiesgildfalsecreditinstantBusiness Acquisition Purchase Price Allocation Current Liabilities Accrued And Other Current Liabilitiesfalsefalsefalsefalsefalsefalsefalsefalsefalsetruenegated1truefalsefalse-87898000-87898falsefalsefalsefalsefalseMonetaryxbrli:monetaryItemTypemonetaryBusiness Acquisition Purchase Price Allocation Current Liabilities Accrued And Other Current LiabilitiesNo authoritative reference available.falsefalse13false0us-gaap_BusinessAcquisitionPurchasePriceAllocationNoncurrentLiabilitiesLongTermDebtus-gaaptruecreditinstantNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsetruenegated1truefalsefalse-303060000-303060falsefalsefalsefalsefalseMonetaryxbrli:monetaryItemTypemonetaryThe amount of acquisition cost of a business combination allocated to the noncurrent portion of the long-term debt assumed from the acquired entity.Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 141
-Paragraph 51
-Subparagraph e
Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 141
-Paragraph 37
-Subparagraph g
Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Emerging Issues Task Force (EITF)
-Number 98-1
falsefalse14false0us-gaap_BusinessAcquisitionPurchasePriceAllocationOtherNoncurrentLiabilitiesus-gaaptruecreditinstantNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsetruenegated1truefalsefalse-27906000-27906falsefalsefalsefalsefalseMonetaryxbrli:monetaryItemTypemonetaryThe amount of acquisition cost of a business combination allocated to other noncurrent liabilities of the acquired entity.Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 141
-Paragraph 51
-Subparagraph e
falsefalse15false0gild_BusinessAcquisitionPurchasePriceAllocationTotalOtherNetLiabilitiesgildfalsecreditinstantBusiness Acquisition Purchase Price Allocation Total Other Net Liabilitiesfalsefalsefalsefalsefalsefalsefalsefalsefalsetruenegatedtotal1truefalsefalse-26407000-26407falsefalsefalsefalsefalseMonetaryxbrli:monetaryItemTypemonetaryBusiness Acquisition Purchase Price Allocation Total Other Net LiabilitiesNo authoritative reference available.truefalse16false0us-gaap_BusinessCombinationConsiderationTransferredus-gaaptruedebitinstantNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalsetotallabel1truefalsefalse13925580001392558falsefalsefalsefalsefalseMonetaryxbrli:monetaryItemTypemonetaryThis element represents the acquisition-date fair value of the total consideration transferred which consists of the sum of the acquisition-date fair values of the assets transferred by the acquirer, the liabilities incurred by the acquirer to former owners of the acquiree, and the equity interests issued by the acquirer.Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 141R
-Paragraph 39, 40
Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 141R
-Paragraph 68
-Subparagraph f
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{dei_LegalEntityAxis} : CV Therapeutics, Inc. [Member]
4/15/2009
USD ($)
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-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 141
-Paragraph 52
Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 141
-Paragraph 51
-Subparagraph e
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{dei_LegalEntityAxis} : CV Therapeutics, Inc. [Member]
4/15/2009
USD ($)
$As_Of_4_15_20097http://www.sec.gov/CIK0000882095instant2009-04-15T00:00:000001-01-01T00:00:00falsefalseIPR&D [Member]us-gaap_StatementScenarioAxisxbrldihttp://xbrl.org/2006/xbrldigild_IprAndDMemberus-gaap_StatementScenarioAxisexplicitMemberfalsefalseCV Therapeutics, Inc. [Member]dei_LegalEntityAxisxbrldihttp://xbrl.org/2006/xbrldigild_CvTherapeuticsIncMemberdei_LegalEntityAxisexplicitMemberUnit12Standardhttp://www.xbrl.org/2003/iso4217USDiso42170USDUSD$OthernaNo definition available.No authoritative reference available.falsefalse20false0us-gaap_BusinessAcquisitionPurchasePriceAllocationIntangibleAssetsNotAmortizableus-gaaptruedebitinstantNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalseverboselabel1truefalsefalse138900000138900falsetruefalsefalsefalseMonetaryxbrli:monetaryItemTypemonetaryThe amount of acquisition cost of a business combination allocated to an identifiable intangible asset that will not be amortized. Does not include goodwill.Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 141
-Paragraph 51
-Subparagraph e
Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 141
-Paragraph 52
-Subparagraph b
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