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Segment Information
 3 Months Ended
Mar. 31, 2025
Segment Reporting [Abstract]  
Segment Information Segment Information
The Company manages its operations as a single segment. The Company’s Chief Operating Decision Maker ("CODM"), its Chief Executive Officer, manages the Company's operations on a consolidated basis for the purposes of assessing performance and making operating decisions. The segment measure of profit or loss is consolidated net (loss) income.

The following table presents selected financial information with respect to the Company’s single operating segment for the years ended:
Three Months Ended March 31,
20252024
Collaboration revenue$20,558 $59,120 
Less:
Research and development expenses
Direct research and development expenses
ENTR-601-444,734 3,279 
ENTR-601-452,859 2,538 
ENTR-601-50692 2,643 
ENTR-601-51826 70 
Collaboration services876 753 
Other preclinical and discovery1,257 1,911 
Unallocated research and development expenses
Personnel related (including stock-based compensation)12,756 9,900 
Facility related and other8,074 7,514 
Total research and development expenses32,074 28,608 
General and administrative expenses10,2749,399
Interest and other income4,4414,214
Provision for income taxes— 1,831 
Net (loss) income
$(17,349)$23,496 

Assets regularly provided to the CODM are consistent with those reported on the condensed consolidated balance sheets with particular emphasis on the Company's available liquidity, including its cash, cash equivalents and marketable securities balances. All of the Company's tangible assets are held in the United States.