The Company - Additional Information (Detail) $ in Thousands		3 Months Ended								12 Months Ended
	Jul. 31, 2020 USD ($)	Jun. 30, 2021 USD ($)	Mar. 31, 2021 USD ($)	Dec. 31, 2020 USD ($)	Sep. 30, 2020 USD ($)	Jun. 30, 2020 USD ($)	Mar. 31, 2020 USD ($)	Dec. 31, 2019 USD ($)	Sep. 30, 2019 USD ($)	Jun. 30, 2021 USD ($) shares	Jun. 30, 2020 USD ($)	Jun. 30, 2019 USD ($)
BARDA income	$ 1,600	$ 440	$ 570	$ 449	$ 596	$ 481	$ 1,008	$ 386	$ 2,051	$ 2,055	$ 3,926	$ 5,921
Description of stock exchange ratio										As a result, the Company became the sole shareholder of AVITA Medical and the new parent company of the AVITA Group. In conjunction with the Redomiciliation, an implicit consolidation or reverse split on a 1 for 100 basis was implemented whereby shareholders of AVITA Medical received one share of common stock in the Company for every 100 shares held in AVITA Medical.
Reverse stock split										reverse split on a 1 for 100 basis
Stock split conversion ratio										100
CHESS Depositary Interests
Stock split conversion ratio										0.05
Stockholders equity stock split										five CDIs in the Company for every 100 ordinary shares in AVITA Medical that were held by them
Numbers shares equivalent to one common share | shares										5
American Depositary Shares
Stock split conversion ratio										5
Stockholders equity stock split										one share of common stock in the Company for every 5 ADSs in AVITA Medical that were held by them
BARDA | RECELL system
Contract amount	$ 7,600
Number of Units Delivered	5,614									5,614