Fair Value Measurements - Additional Information (Details) - USD ($)	Dec. 31, 2022	Dec. 31, 2021
Fair Value Disclosures [Abstract]
Fair value assets transferred from level 1 to level 2	$ 0	$ 0

Fair value assets level1 To level2 transfers amount1.

No definition available.

Name:	agle_FairValueAssetsLevel1ToLevel2TransfersAmount1
Namespace Prefix:	agle_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant