XML 104 R58.htm IDEA: XBRL DOCUMENT v2.4.1.9

Goodwill and Intangible Assets (Details Textual) (USD $)	0 Months Ended	3 Months Ended	12 Months Ended			0 Months Ended
	Dec. 31, 2013	May 31, 2014	May 31, 2014	May 31, 2013 ReportingUnit	May 31, 2012	May 22, 2012
Goodwill and Intangible Assets (Textual) [Abstract]
Number of reporting segments				2us-gaap_NumberOfReportableSegments
Terminal value of the reporting unit		7.0ango_EBITDAExitMultiple	7.0ango_EBITDAExitMultiple
Discount rate used in fair value calculation			12.00%us-gaap_FairValueInputsDiscountRate
Percentage of fair value, carrying value	7.00%ango_PercentageOfFairValueExceedingItsCarryingValue
Goodwill impairment	$ 0us-gaap_GoodwillImpairmentLoss
Change in carrying value of goodwill related to working capital		500,000us-gaap_GoodwillPurchaseAccountingAdjustments
Reduction in carrying value of goodwill				2,300,000us-gaap_GoodwillPeriodIncreaseDecrease
Change in carrying value of goodwill due to settlement				900,000ango_ChangeInCarryingValueOfGoodwillDueToSettlementWithPreviousOwner
Increase in value of deferred tax assets				1,600,000ango_DeferredTaxAssetsIncreaseDecrease
Preacquisition tax adjustments to goodwill				200,000ango_PreacquisitionTaxAdjustmentsToGoodwill
Amortization expense			16,622,000us-gaap_AmortizationOfIntangibleAssets	16,617,000us-gaap_AmortizationOfIntangibleAssets	9,309,000us-gaap_AmortizationOfIntangibleAssets
Maximum [Member]
Goodwill and Intangible Assets (Textual) [Abstract]
Estimates useful life of intangible assets other than goodwill			20 years
Minimum [Member]
Goodwill and Intangible Assets (Textual) [Abstract]
Estimates useful life of intangible assets other than goodwill			3 years
Navilyst [Member]
Goodwill and Intangible Assets (Textual) [Abstract]
Estimates useful life of intangible assets other than goodwill						10 years
Change in carrying value of goodwill related to working capital			(2,257,000)us-gaap_GoodwillPurchaseAccountingAdjustments / us-gaap_BusinessAcquisitionAxis = ango_NavilystMember
Navilyst [Member] | Trademark-NAMIC [Member]
Goodwill and Intangible Assets (Textual) [Abstract]
Acquired intangible asset			$ 28,600,000us-gaap_IndefinitelivedIntangibleAssetsAcquired / us-gaap_BusinessAcquisitionAxis = ango_NavilystMember / us-gaap_IndefiniteLivedIntangibleAssetsByMajorClassAxis = ango_TrademarkNamicMember			28,600,000us-gaap_IndefinitelivedIntangibleAssetsAcquired / us-gaap_BusinessAcquisitionAxis = ango_NavilystMember / us-gaap_IndefiniteLivedIntangibleAssetsByMajorClassAxis = ango_TrademarkNamicMember
Income Approach Valuation Technique [Member]
Goodwill and Intangible Assets (Textual) [Abstract]
Weight assigned to valuation methods				75.00%ango_FairValueAssumptionsCalculationWeightedAppliedtoVariousValuationMethod / us-gaap_ValuationTechniqueAxis = us-gaap_IncomeApproachValuationTechniqueMember
Market Approach Valuation Technique [Member]
Goodwill and Intangible Assets (Textual) [Abstract]
Weight assigned to valuation methods				25.00%ango_FairValueAssumptionsCalculationWeightedAppliedtoVariousValuationMethod / us-gaap_ValuationTechniqueAxis = us-gaap_MarketApproachValuationTechniqueMember

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- Definition

Change in carrying value of goodwill due to settlement with previous owner.

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No definition available.

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Percentage of fair value exceeding its carrying value.

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- Definition

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Reference 1: http://www.xbrl.org/2003/role/presentationRef

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Interest rate used to find the present value of an amount to be paid or received in the future as an input to measure fair value. For example, but not limited to, weighted average cost of capital (WACC), cost of capital, cost of equity and cost of debt.

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Useful life of finite-lived intangible assets, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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- Definition

Amount of loss from the write-down of an asset representing the future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

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Amount of increase (decrease) of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

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- Definition

Amount of increase (decrease) from adjustments after acquisition date under purchase accounting of an asset representing the future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

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Amount of increase in assets, excluding financial assets and goodwill, lacking physical substance with an indefinite life, resulting from a business combination.

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Number of segments reported by the entity. A reportable segment is a component of an entity for which there is an accounting requirement to report separate financial information on that component in the entity's financial statements.

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