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v3.23.1

Organization and Business (Details) | 3 Months Ended
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Mar. 31, 2023 collaborator product
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items] |
Royalties received, number of collaborators | collaborator | 3
Baxalta |
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items] |
royalties received, number of products sold | 1
Roche |
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items] |
royalties received, number of products sold | 3
Janssen |
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items] |
royalties received, number of products sold | 1

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- Definition Royalties Received, Number of Collaborators + References No definition available. + Details
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X
- Definition Royalties Received, Number of Products Sold + References No definition available. + Details
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Namespace Prefix: | halo_
Data Type: | xbrli:integerItemType
Balance Type: | na
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
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Namespace Prefix: | us-gaap_
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X
- Details
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Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
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Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_CounterpartyNameAxis=halo_JanssenMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |