Share-based Compensation - Fair Value of Stock Options Weighted-Average Assumptions Used (Detail) - $ / shares	6 Months Ended
	Dec. 31, 2023	Dec. 31, 2022
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Risk-free interest rate	4.50%	2.90%
Expected life (years)	5 years 8 months 12 days	6 years
Volatility	90.00%	84.10%
Dividend yield	0.00%	0.00%
Weighted-average grant date fair value	$ 5.18	$ 7.8