Cover Page - shares	9 Months Ended
	Sep. 30, 2021	Nov. 11, 2021
Cover [Abstract]
Document Type	10-Q
Document Quarterly Report	true
Document Period End Date	Sep. 30, 2021
Document Transition Report	false
Entity File Number	001-31822
Entity Registrant Name	ACCELERATE DIAGNOSTICS, INC.
Entity Incorporation, State or Country Code	DE
Entity Tax Identification Number	84-1072256
Entity Address, Address Line One	3950 South Country Club Road,
Entity Address, Address Line Two	Suite 470
Entity Address, City or Town	Tucson,
Entity Address, State or Province	AZ
Entity Address, Postal Zip Code	85714
City Area Code	520
Local Phone Number	365-3100
Title of 12(b) Security	Common Stock, $0.001 par
Trading Symbol	AXDX
Security Exchange Name	NASDAQ
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Non-accelerated Filer
Entity Small Business	true
Entity Emerging Growth Company	false
Entity Shell Company	false
Entity Common Stock, Shares Outstanding		65,604,683
Entity Central Index Key	0000727207
Amendment Flag	false
Current Fiscal Year End Date	--12-31
Document Fiscal Period Focus	Q3
Document Fiscal Year Focus	2021