Summary of Significant Accounting Policies - Schedule of Changes in Unbilled Receivables and Contract Liabilities (Detail) - USD ($) $ in Thousands	3 Months Ended	12 Months Ended
	Mar. 31, 2024	Jun. 30, 2023	Jun. 30, 2022
Contract with Customer Asset and Liability [Line Items]
Unbilled receivables	$ 0	$ 85	$ 10,044
Contract liabilities included in deferred revenue and deferred revenue, net of current portion	0	317	30,900
Contract liabilities, beginning of period	317	30,900
Revenue recognized upon satisfaction of performance obligations	(317)	(5,411)
Revenue recognized from change in estimate for performance obligations that are being closed	0	(16,565)
Revenue recognized for performance obligations that will no longer commence	0	(8,607)
Contract liabilities, end of period	0	317
Deferred Revenue [Member]
Contract with Customer Asset and Liability [Line Items]
Contract liabilities included in deferred revenue and deferred revenue, net of current portion	0	317	$ 30,900
Contract liabilities, beginning of period		30,900
Contract liabilities, end of period	$ 0	$ 317