Leases (Lease Term, Discount Rate and Cash Flow Information ) (Detail) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2020	Dec. 31, 2019
Lessee Disclosure [Abstract]
Weighted-average remaining operating lease term (years)	5 years 9 months 18 days		5 years 9 months 18 days
Weighted-average operating lease discount rate	5.60%		5.60%
Cash paid for amounts in the measurement of operating lease liabilities (net of sublease receipts)	$ 11,472	$ 12,055	$ 22,899	$ 24,017
Operating lease assets obtained in exchange for operating lease liabilities	$ 18,548	$ 787	$ 45,076	$ 5,655