Carrying value of the assets held for sale

No definition available.

Name:	acor_CarryingValueOfAssetsHeldForSale
Namespace Prefix:	acor_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Fair value portion of assets classified as held for sale.

+ References

Reference 1: http://www.xbrl.org/2003/role/exampleRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 820
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (a)
-URI https://asc.fasb.org/extlink&oid=126976982&loc=d3e19207-110258

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Amount of gain (loss) on sale or disposal of other assets.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 28
-Subparagraph (b)
-URI https://asc.fasb.org/extlink&oid=126954810&loc=d3e3602-108585

+ Details

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

- Definition

The cash inflow associated with the amount received from the sale of a portion of the company's business, for example a segment, division, branch or other business, during the period.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 12
-Subparagraph (b)
-URI https://asc.fasb.org/extlink&oid=126954810&loc=d3e3179-108585

+ Details

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

- Definition

Amount of cash inflow from the sale of tangible or intangible assets used to produce goods or deliver services, classified as other.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 12
-Subparagraph (c)
-URI https://asc.fasb.org/extlink&oid=126954810&loc=d3e3179-108585

+ Details

Name:	us-gaap_ProceedsFromSaleOfOtherProductiveAssets
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

The cash inflow from the sale of property, plant and equipment (capital expenditures), software, and other intangible assets.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 12
-Subparagraph (c)
-URI https://asc.fasb.org/extlink&oid=126954810&loc=d3e3179-108585

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Namespace Prefix:	us-gaap_
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Balance Type:	debit
Period Type:	duration

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Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_FairValueByAssetClassAxis=us-gaap_PropertyPlantAndEquipmentMember
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Period Type:

- Details

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Data Type:	na
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- Details

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Data Type:	na
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- Details

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- Details

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Disposal of Assets - Additional Information (Details) - USD ($) $ in Millions		1 Months Ended	3 Months Ended	9 Months Ended
	Feb. 10, 2021	Jan. 12, 2021	Mar. 31, 2021	Sep. 30, 2022
Long Lived Assets Held For Sale [Line Items]
Estimated fair value of assets held for sale				$ 71.8
Carrying value of the assets held for sale				129.7
Proceeds from completion of divestiture				74.0
Prepaid Expenses
Long Lived Assets Held For Sale [Line Items]
Carrying value of the assets held for sale				0.1
Property and Equipment
Long Lived Assets Held For Sale [Line Items]
Carrying value of the assets held for sale				129.6
Manufacturing Facility
Long Lived Assets Held For Sale [Line Items]
Loss on assets held for sale				$ 57.9
Catalent \| Chelsea, Massachusetts
Long Lived Assets Held For Sale [Line Items]
Purchase price of assets related to manufacturing activities		$ 80.0
Additional raw materials purchase price		$ 2.3
Catalent \| Leases
Long Lived Assets Held For Sale [Line Items]
Carrying value of the assets held for sale	$ (0.5)
Loss on assets held for sale			$ 0.5