Balance Sheet Accounts (Summary of Product Warranty Liability Activity) (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2017	Dec. 31, 2016
Movement in Standard Product Warranty Accrual [Roll Forward]
Balance beginning of period	$ 13,499	$ 9,017	$ 10,584	$ 9,998
Warranties assumed due to acquisition	526	2,034	3,682	2,034
New warranties issued	1,657	1,176	3,929	2,104
Warranty expenditures	(2,672)	(1,437)	(5,185)	(3,346)
Balance end of period	$ 13,010	$ 10,790	$ 13,010	$ 10,790