Schedule II - Valuation and Qualifying Accounts (Details) - USD ($) $ in Thousands	12 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2015
Allowance for doubtful accounts
Movement in Valuation Allowances and Reserves [Roll Forward]
Balance at beginning of period	$ 936	$ 896	$ 1,586
Charged to costs and expenses	1,077	208	791
Charged to other accounts	149	54	20
Deductions	(715)	(222)	(1,501)
Balance at end of period	1,447	936	896
Valuation allowance for deferred tax assets
Movement in Valuation Allowances and Reserves [Roll Forward]
Balance at beginning of period	15,310	10,926	10,952
Charged to costs and expenses	1,862	7,484	963
Charged to other accounts	0	0	0
Deductions	(2,322)	(3,100)	(989)
Balance at end of period	$ 14,850	$ 15,310	$ 10,926