Segment Information - Operating Segment Information (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2025	Mar. 31, 2024
Segment Reporting Information [Line Items]
Revenue	$ 20,558	$ 59,120
Research and development	32,074	28,608
General and administrative	10,274	9,399
Interest and other income	4,441	4,214
Provision for income taxes	0	1,831
Net (loss) income	(17,349)	23,496
Reportable Segment
Segment Reporting Information [Line Items]
Revenue	20,558	59,120
Research and development	32,074	28,608
General and administrative	10,274	9,399
Interest and other income	4,441	4,214
Provision for income taxes	0	1,831
Net (loss) income	(17,349)	23,496
Reportable Segment | ENTR-601-44
Segment Reporting Information [Line Items]
Research and development	4,734	3,279
Reportable Segment | ENTR-601-45
Segment Reporting Information [Line Items]
Research and development	2,859	2,538
Reportable Segment | ENTR-601-50
Segment Reporting Information [Line Items]
Research and development	692	2,643
Reportable Segment | ENTR-601-51
Segment Reporting Information [Line Items]
Research and development	826	70
Reportable Segment | Collaboration services
Segment Reporting Information [Line Items]
Research and development	876	753
Reportable Segment | Other preclinical and discovery
Segment Reporting Information [Line Items]
Research and development	1,257	1,911
Reportable Segment | Personnel related (including stock-based compensation)
Segment Reporting Information [Line Items]
Research and development	12,756	9,900
Reportable Segment | Facility related and other
Segment Reporting Information [Line Items]
Research and development	$ 8,074	$ 7,514