Segment Information - Reconciliation of Total Segment Profit to Income before Income Taxes (Details) - USD ($) $ in Thousands	3 Months Ended
	Sep. 30, 2018	Sep. 30, 2017
Reconciliation to Income before Income Taxes
Total segment profit for reportable segments	$ 36,990	$ 53,313
General and administrative	(16,084)	(13,676)
Other (expense) income, net	128
Income before provision for income taxes	42,373
Operating segments
Reconciliation to Income before Income Taxes
Total segment profit for reportable segments	53,074
Segment Reconciling Items
Reconciliation to Income before Income Taxes
General and administrative	(16,084)
Other (expense) income, net	5,255
Other income (expense), net	$ 128
Accounting Standards Update 2014-09 [Member]
Reconciliation to Income before Income Taxes
Total segment profit for reportable segments		55,713
General and administrative		(15,037)
Other (expense) income, net		(615)
Income before provision for income taxes		60,198
Accounting Standards Update 2014-09 [Member] | Operating segments
Reconciliation to Income before Income Taxes
Total segment profit for reportable segments		70,750
Accounting Standards Update 2014-09 [Member] | Segment Reconciling Items
Reconciliation to Income before Income Taxes
General and administrative		(15,037)
Other (expense) income, net		5,100
Other income (expense), net		$ (615)