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License Agreements (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2025	Mar. 31, 2024	Jan. 31, 2025	May 31, 2021
2020 Xencor Agreement
Nature of Business
Agreement transaction price	$ 0.0	$ 0.0
2021 Xencor Agreement
Nature of Business
Reimbursable costs	0.0	0.0
Regulatory milestone payments				$ 75.0
Sales milestone payments				$ 385.0
Viridian Agreement
Nature of Business
Reimbursable costs	0.1	0.0
Development milestone expense payable			$ 21.0
Sales milestone payments			$ 21.0
Contract manufacturing organization costs recognized	$ 0.0	$ 0.0

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

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 808
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 1
-Subparagraph (d)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479402/808-10-50-1

+ Details

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

X

- Definition

The amount of transaction price receivable under the collaborative agreement.

+ References

No definition available.

+ Details

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Namespace Prefix:	zbio_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

X

- Definition

The amount of total contract manufacturing organization ("CMO") costs incurred and recognized.

+ References

No definition available.

+ Details

Name:	zbio_LicenseAndOptionAgreementsContractManufacturingOrganizationCosts
Namespace Prefix:	zbio_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

X

- Definition

The amount of development milestone payable in connection with the agreement during the period.

+ References

No definition available.

+ Details

Name:	zbio_LicenseAndOptionAgreementsDevelopmentMilestonePayable
Namespace Prefix:	zbio_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

X

- Definition

The amount of regulatory milestone payable in connection with the agreement during the period.

+ References

No definition available.

+ Details

Name:	zbio_LicenseAndOptionAgreementsRegulatoryMilestonePayable
Namespace Prefix:	zbio_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

X

- Definition

Amount of reimbursable expenses incurred pursuant to the agreement.

+ References

No definition available.

+ Details

Name:	zbio_LicenseAndOptionAgreementsReimbursableExpenses
Namespace Prefix:	zbio_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

X

- Definition

The amount of sales milestone payable in connection with the agreement during the period.

+ References

No definition available.

+ Details

Name:	zbio_LicenseAndOptionAgreementsSalesMilestonePayable
Namespace Prefix:	zbio_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

X

- Details

Name:	us-gaap_TypeOfArrangementAxis=zbio_XencorAgreement2020Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_TypeOfArrangementAxis=zbio_XencorAgreement2021Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_TypeOfArrangementAxis=zbio_ViridianAgreementMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: