XML 111 R75.htm IDEA: XBRL DOCUMENT
v3.10.0.1

Commitments and Contingencies (Details Textual) $ in Millions |  |  |  |  |  |  | 9 Months Ended | 12 Months Ended
--- | --- | --- | --- | --- | --- | --- | --- | ---
Mar. 29, 2016 claim | Mar. 24, 2016 claim | Mar. 11, 2016 claim | Jun. 01, 2015 motion | Mar. 10, 2015 patent | Jan. 11, 2012 reexamination_appeal patent claim | Feb. 28, 2017 Petition reexamination_appeal | May 31, 2018 USD ($) | May 31, 2017 USD ($) | May 31, 2016 USD ($)
Loss Contingencies [Line Items] |  |  |  |  |  |  |  |  |  |
Aggregate rental costs under operating leases | $ |  |  |  |  |  |  |  | $ 2.8 | $ 2.5 | $ 2.5
Reserve | $ |  |  |  |  |  |  |  |  | $ 12.5 |
C.R. Bard, Inc. |  |  |  |  |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |  |  |  |  |
Number of patents | patent |  |  |  |  |  | 3 |  |  |  |
Number of petitions filed for reexamination of patents | Petition |  |  |  |  |  |  | 3 |  |  |
The Utah Action |  |  |  |  |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |  |  |  |  |
Number of claims rejected (claim) | 20 | 8 | 6 |  |  | 40 |  |  |  |
Number of reexaminations (reexamination appeal) | reexamination_appeal |  |  |  |  |  | 3 |  |  |  |
Number of pending claims (claim) |  | 10 | 10 |  |  |  |  |  |  |
Number of claims reversed (claim) |  | 2 | 4 |  |  |  |  |  |  |
Loss contingency, new claims filed, number |  |  |  |  |  | 41 |  |  |  |
The Utah Action | Pending Litigation |  |  |  |  |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |  |  |  |  |
Number of reexaminations (reexamination appeal) | reexamination_appeal |  |  |  |  |  |  | 2 |  |  |
The Utah Action | C.R. Bard, Inc. | Pending Litigation |  |  |  |  |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |  |  |  |  |
Number of reexaminations (reexamination appeal) | reexamination_appeal |  |  |  |  |  |  | 3 |  |  |
The Delaware Action |  |  |  |  |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |  |  |  |  |
Number of patents allegedly infringed (patent) |  |  |  | 2 | 3 |  |  |  |  |

X
- Definition Loss Contingency, Claims Reversed, Number + References No definition available. + Details
Name: | ango_LossContingencyClaimsReversedNumber
Namespace Prefix: | ango_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | duration

X
- Definition Loss Contingency, Reexaminations, Number + References No definition available. + Details
Name: | ango_LossContingencyReexaminationsNumber
Namespace Prefix: | ango_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | duration

X
- Definition Loss Contingency, U.S. Patents, Number + References No definition available. + Details
Name: | ango_LossContingencyU.S.PatentsNumber
Namespace Prefix: | ango_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | instant

X
- Definition Number of patents asserted for reexamination. + References No definition available. + Details
Name: | ango_NumberOfPatentsAssertedForReexamination
Namespace Prefix: | ango_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | duration

X
- Definition Amount of rent expense incurred for leased assets, including but not limited to, furniture and equipment, that is not directly or indirectly associated with the manufacture, sale or creation of a product or product line. + References No definition available. + Details
Name: | us-gaap_LeaseAndRentalExpense
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
Name: | us-gaap_LossContingenciesLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Amount of loss contingency liability. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 450 -SubTopic 20 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=82911808&loc=d3e14326-108349 + Details
Name: | us-gaap_LossContingencyAccrualAtCarryingValue
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Number of claims dismissed. + References No definition available. + Details
Name: | us-gaap_LossContingencyClaimsDismissedNumber
Namespace Prefix: | us-gaap_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | duration

X
- Definition The total number of new claims filed pertaining to a loss contingency during the period. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 450 -SubTopic 20 -Section 50 -Paragraph 4 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=82911808&loc=d3e14435-108349 + Details
Name: | us-gaap_LossContingencyNewClaimsFiledNumber
Namespace Prefix: | us-gaap_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | duration

X
- Definition Number of another entity's patents that the entity has allegedly infringed. + References No definition available. + Details
Name: | us-gaap_LossContingencyPatentsAllegedlyInfringedNumber
Namespace Prefix: | us-gaap_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | duration

X
- Definition Number of pending claims pertaining to a loss contingency. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 450 -SubTopic 20 -Section 50 -Paragraph 4 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=82911808&loc=d3e14435-108349 + Details
Name: | us-gaap_LossContingencyPendingClaimsNumber
Namespace Prefix: | us-gaap_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | instant

X
- Details
Name: | srt_LitigationCaseAxis=ango_C.R.BardInc.Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_LitigationCaseAxis=ango_TheUtahActionMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_LitigationStatusAxis=us-gaap_PendingLitigationMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | dei_LegalEntityAxis=ango_C.R.BardInc.Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_LitigationCaseAxis=ango_TheDelawareActionMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |