Revenue from Contracts with Customers - Narrative (Details) $ in Millions	3 Months Ended
Aug. 31, 2021 USD ($)
Disaggregation of Revenue [Line Items]
Days after purchase after which pre-approval is required for product return	30 days
Restocking charge (as percent)	20.00%
Minimum remaining period prior to product expiration	12 months
Additions to contract liabilities	$ 0.4
Revenue recognized from contract liability balances in respective periods	$ 0.4
Minimum
Disaggregation of Revenue [Line Items]
Payment term	30 days
Maximum
Disaggregation of Revenue [Line Items]
Payment term	90 days

Contract With Customer, Right Of Return, Minimum Remaining Product Life Prior To Return

No definition available.

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- Definition

Contract With Customer, Right Of Return, Product Return Period After Purchase Date Requiring Pre-Approval

+ References

No definition available.

+ Details

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Period Type:	duration

- Definition

Contract with Customer, Right of Return, Restocking Charge

+ References

No definition available.

+ Details

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Namespace Prefix:	ango_
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Balance Type:	na
Period Type:	duration

- Definition

Revenue, Performance Obligation, Payment Term

+ References

No definition available.

+ Details

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- Definition

Amount of increase (decrease) in obligation to transfer good or service to customer for which consideration from customer has been received or is due, from business combination.

+ References

Reference 1: http://www.xbrl.org/2003/role/exampleRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 606
-SubTopic 10
-Section 50
-Paragraph 10
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=121604090&loc=SL49130551-203045

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

Amount of revenue recognized that was previously included in balance of obligation to transfer good or service to customer for which consideration from customer has been received or is due.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 606
-SubTopic 10
-Section 50
-Paragraph 8
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=121604090&loc=SL49130549-203045

+ Details

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Balance Type:	credit
Period Type:	duration

- 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

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