Income Taxes - Income (Loss) before Provision For (Benefit From) Income Taxes (Details) - USD ($) $ in Thousands	12 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2017
Income (loss) before provision for income taxes
Domestic	$ 298,665
Foreign	4,525
Income before provision for income taxes	303,190
Federal
Current	64,194
Deferred	(26,983)
State
Current	3,246
Deferred	(1,026)
Foreign
Current	1,549
Deferred	(524)
Provision for income taxes	$ 40,456	$ 54,655	$ 48,150
Accounting Standards Update 2014-09 (Topic 606) [Member]
Income (loss) before provision for income taxes
Domestic		229,745	228,890
Foreign		7,901	8,293
Income before provision for income taxes		237,646	237,183
Federal
Current		47,734	69,385
Deferred		(108,867)	(13,110)
State
Current		1,471	1,737
Deferred		1,042	(771)
Foreign
Current		2,296	2,067
Deferred		267	(1,511)
Provision for income taxes		$ (56,057)	$ 57,797