Subsequent Event	12 Months Ended
Dec. 31, 2024
Subsequent Events [Abstract]
Subsequent Event	17. Subsequent Event On January 6, 2025, the Company announced a restructuring plan to streamline its organization and prioritize CX-2051 (EpCAM PROBODY® ADC) and its activities to support its research collaborations. The restructuring plan will result in a reduction to its workforce by approximately 40% and is expected to be substantially completed in the first quarter of 2025. The Company estimates that it will incur aggregate restructuring charges of approximately $4.0 million, primarily related to one-time severance payments and other employee-related costs, which the Company expects will be substantially recorded in the first quarter of 2025.

The entire disclosure for significant events or transactions that occurred after the balance sheet date through the date the financial statements were issued or the date the financial statements were available to be issued. Examples include: the sale of a capital stock issue, purchase of a business, settlement of litigation, catastrophic loss, significant foreign exchange rate changes, loans to insiders or affiliates, and transactions not in the ordinary course of business.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 855
-Name Accounting Standards Codification
-Publisher FASB
-URI https://asc.fasb.org/855/tableOfContent

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 855
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Subparagraph (a)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147483399/855-10-50-2

Name:	us-gaap_SubsequentEventsTextBlock
Namespace Prefix:	us-gaap_
Data Type:	dtr-types:textBlockItemType
Balance Type:	na
Period Type:	duration