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available.false122gild_PercentageOfPrincipalAmountOfNotesThatHolderMayRequireUsToPurchaseUponChangeInControlgildfalsenadurationPercentage of principal amount of Notes that holder may require us to purchase upon a change in control.falsefalsefalsefalsefalsefalsefalsefalsefalsefalsefalseterselabelfalse1falsetruefalsefalse100100falsefalsefalse2falsefalsefalsefalse00falsefalsefalsexbrli:pureItemTypepurePercentage of principal amount of Notes that holder may require us to purchase upon a change in control.No authoritative reference available.false132gild_PurchasePriceOfConvertibleNoteHedgesgildfalsedebitinstantPurchase Price Of Convertible Note Hedgesfalsefalsefalsefalsefalsefalsefalsefalsefalsefalsefalseterselabelfalse1falsetruefalsefalse362600000362600000falsefalsefalse2falsefalsefalsefalse00falsefalsefalsexbrli:monetaryItemTypemonetaryPurchase Price Of Convertible Note HedgesNo authoritative reference available.false142gild_NumberOfSharesCoveredByPurchaseOfConvertibleNoteHedgesgildfalsenainstantNumber Of Shares Covered By The Purchase Of Convertible Note Hedgesfalsefalsefalsefalsefalsefalsefalsefalsefalsefalsefalseterselabelfalse1falsetruefalsefalse5530000055300000falsefalsefalse2falsefalsefalsefalse00falsefalsefalsexbrli:sharesItemTypesharesNumber Of Shares Covered By The Purchase Of Convertible Note HedgesNo authoritative reference available.false152us-gaap_IncrementalCommonSharesAttributableToCallOptionsAndWarrantsus-gaaptruenadurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalsefalseterselabelfalse1falsetruefalsefalse5530000055300000falsefalsefalse2falsefalsefalsefalse00falsefalsefalsexbrli:sharesItemTypesharesContracts and securities that allow the holder to buy common stock from the entity. A call option that gives the holder the right, but not the obligation, to purchase shares of common stock from the entity in accordance with an agreement upon payment of a specified amount. A warrant is a security that gives the holder the right to purchase common stock in accordance with the terms of the instrument, usually upon payment of a specified amount. The dilutive effect of which is reflected in diluted EPS by application of the treasury stock method unless another method is required to be applied.Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 128
-Paragraph 40
-Subparagraph a
Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 128
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-Name Statement of Financial Accounting Standard (FAS)
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Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 95
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-Publisher FASB
-Name FASB Staff Position (FSP)
-Number APB14-1
-Paragraph 32
-Subparagraph b
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-Publisher SEC
-Name Regulation S-X (SX)
-Number 210
-Section 08
-Paragraph i
-Subparagraph 4
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-Name Regulation S-X (SX)
-Number 210
-Section 08
-Paragraph i
-Subparagraph 4
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-Publisher SEC
-Name Regulation S-X (SX)
-Number 210
-Section 02
-Paragraph 22
-Article 5
Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name FASB Staff Position (FSP)
-Number APB14-1
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-Publisher SEC
-Name Regulation S-X (SX)
-Number 210
-Section 08
-Paragraph i
-Subparagraph 4
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-Publisher SEC
-Name Regulation S-X (SX)
-Number 210
-Section 02
-Paragraph 22
-Article 5
Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name FASB Staff Position (FSP)
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-Paragraph 31
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-Publisher SEC
-Name Regulation S-X (SX)
-Number 210
-Section 08
-Paragraph i
-Subparagraph 4
-Article 4
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