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Condensed Consolidated Statements of Comprehensive Loss - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Statement of Comprehensive Income [Abstract]
Consolidated net loss	$ (15,487)	$ (11,952)
Other comprehensive loss:
Change in unrealized gain (loss) on available-for-sale investments, net of tax	(84)	185
Comprehensive loss	(15,571)	(11,767)
Comprehensive (gain) loss attributable to noncontrolling interest in Pangu BioPharma Limited	(4)	1
Comprehensive loss attributable to aTyr Pharma, Inc. common stockholders	$ (15,575)	$ (11,766)

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