CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME - USD ($) $ in Thousands	12 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2015
Statement of Comprehensive Income [Abstract]
Net income	$ 11,376	$ 34,766	$ 33,483
Other comprehensive income (loss):
Foreign currency translation adjustments	1,780	368	(12,354)
Change in fair value of interest rate swaps	(581)	(149)	99
Reclassification for realized loss on interest rate swap included in interest expense		487
Defined benefit plans, net of tax of $7, $31 and $100 respectively	14	65	(213)
Total other comprehensive income (loss)	1,213	771	(12,468)
Comprehensive income	$ 12,589	$ 35,537	$ 21,015