Segment Information - Reconciliation of Total Segment Profit to Income before Income Taxes (Details) - USD ($) $ in Thousands	3 Months Ended
	Sep. 30, 2020	Sep. 30, 2019
Reconciliation to Income before Income Taxes
Total segment profit for reportable segments	$ 34,170	$ 53,390
General and administrative	(17,633)	(19,884)
Interest income	8,669	7,976
Interest (expense)	2,095	3,000
Other (expense) income, net	(1,469)	1,132
Income before income taxes	39,275	59,498
Operating segments
Reconciliation to Income before Income Taxes
Total segment profit for reportable segments	51,803	73,274
Segment Reconciling Items
Reconciliation to Income before Income Taxes
General and administrative	(17,633)	(19,884)
Interest income	8,669	7,976
Interest (expense)	(2,095)	(3,000)
Other (expense) income, net	$ (1,469)	$ 1,132