Net Loss Per Share Attributable to Adaptive Biotechnologies Corporation Common Shareholders - Computation of the Basic and Diluted Net Loss Per Share Attributable to Common Shareholders (Details) - USD ($) $ / shares in Units, $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Earnings Per Share [Abstract]
Net loss attributable to Adaptive Biotechnologies Corporation	$ (225,250)	$ (200,191)	$ (207,279)
Weighted-average shares used in computing net loss per share attributable to Adaptive Biotechnologies Corporation common shareholders, basic	144,383,294	142,515,917	140,354,915
Net loss per share attributable to Adaptive Biotechnologies Corporation common shareholders, basic	$ (1.56)	$ (1.4)	$ (1.48)
Weighted-average shares used in computing net loss per share attributable to Adaptive Biotechnologies Corporation common shareholders, diluted	144,383,294	142,515,917	140,354,915
Net loss per share attributable to Adaptive Biotechnologies Corporation common shareholders, diluted	$ (1.56)	$ (1.4)	$ (1.48)