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Cover	3 Months Ended
	Mar. 31, 2021
Cover [Abstract]
Entity Registrant Name	Autolus Therapeutics plc
Entity Central Index Key	0001730463
Document Type	6-K
Document Period End Date	Mar. 31, 2021
Amendment Flag	false
Document Fiscal Year Focus	2021
Document Fiscal Period Focus	Q1
Current Fiscal Year End Date	--12-31

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Reference 1: http://www.xbrl.org/2003/role/presentationRef
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-Section 12
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