Income Taxes - Details of Income Taxes (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2019	Dec. 31, 2018
Income Tax Disclosure [Abstract]
Income before income taxes	$ 424,927	$ 415,963	$ 796,443	$ 843,531
Provision for income taxes	$ 44,622	$ 46,863	$ 69,742	$ 78,487
Effective tax rate	10.50%	11.30%	8.80%	9.30%