Leases - Summary of Lease Balances (Detail) - USD ($) $ in Thousands	Mar. 31, 2021	Jun. 30, 2020
Leases [Abstract]
Operating lease right-of-use assets	$ 371,151	$ 330,767
Operating lease liabilities, current	59,357	67,549
Operating lease liabilities, noncurrent	377,044	309,680
Operating lease liabilities	$ 436,401	$ 377,229