Income Taxes - Additional Information (Detail) - USD ($)	12 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2017
Income Tax Contingency [Line Items]
Tax on unremitted earnings			$ 0
Estimated associated withholding tax related to previously taxed earnings			21,800,000
Income taxes paid, net	$ 39,500,000	$ 26,300,000	$ 21,300,000
Effective income tax rate, reductions	(8.91%)	0.25%	0.17%
Interest and penalties recognized within income tax expense (benefit)	$ 600,000	$ (100,000)	$ 300,000
Interest and penalties accrued	3,800,000	1,200,000	600,000
Unrecognized tax benefits that would impact effective tax rate	24,300,000	6,200,000	1,600,000
Unrecognized tax benefits expected decrease during the next 12 months	4,900,000
Unrecognized tax benefits	42,803,000	$ 11,520,000	$ 9,892,000	$ 7,577,000
Accrued Income Tax Payable
Income Tax Contingency [Line Items]
Unrecognized tax benefits	$ 7,400,000