CONSOLIDATED STATEMENTS OF COMPREHENSIVE (LOSS) INCOME - USD ($) $ in Thousands	12 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2017
Statement of Comprehensive Income [Abstract]
Net (loss) income	$ (73,595)	$ (18,280)	$ 22,551
Other comprehensive income (loss), net of tax:
Unrealized losses on derivative instruments designated as cash flow hedges, net of tax	(9,198)	(5,922)	(2,900)
Losses on derivative instruments designated as cash flow hedges reclassified to cost of goods sold, net of tax	9,196	800	510
Change in the funded status of retiree benefit obligations, net of tax	(9,777)	4,576	7,466
Pension settlement charge, net of tax	(8,165)	0	0
Total comprehensive (loss) income, net of tax	$ (75,209)	$ (18,826)	$ 27,627