Calculation of Weighted Average Shares Used to Calculate Basic and Diluted (Loss) Earnings Per Share (Detail) - shares shares in Thousands	12 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2019
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Weighted average shares used in calculating net loss per share	112,527	91,080	71,139
Effect of potentially dilutive common shares from equity awards and liability-classified warrants	1,954		1,246
Weighted average shares used in calculating diluted loss per share	114,481	91,080	72,385