CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS) - USD ($) $ in Thousands	12 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2014
Statement of Comprehensive Income [Abstract]
Net income (loss)	$ 82,728	$ 60,280	$ (3,127)
Change in fair value of derivative instruments	4,197	(1,928)	1,025
Foreign currency translation adjustment	(9,181)	(31,314)	1,110
Unrecognized net pension gains (losses)	(11,093)	(3,221)	(4,423)
(Provision) benefit for income taxes	5,892	4,923
Other comprehensive income (loss)	(10,185)	(31,540)	(2,288)
Comprehensive income (loss)	$ 72,543	$ 28,740	$ (5,415)