Condensed Consolidated Statements of Comprehensive Loss (Unaudited) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Statement of Comprehensive Income [Abstract]
Net loss	$ (50,326)	$ (45,319)	$ (155,837)	$ (160,199)
Other comprehensive income (loss)
Change in unrealized gains and losses on investments	643	(171)	3,866	(4,834)
Comprehensive loss	(49,683)	(45,490)	(151,971)	(165,033)
Add: Comprehensive loss attributable to noncontrolling interest	26	38	28	136
Comprehensive loss attributable to Adaptive Biotechnologies Corporation	$ (49,657)	$ (45,452)	$ (151,943)	$ (164,897)