CONSOLIDATED STATEMENTS OF COMPREHENSIVE (LOSS) INCOME - USD ($) $ in Thousands	12 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2018
Statement of Comprehensive Income [Abstract]
Net loss	$ (37,087)	$ (73,595)	$ (18,280)
Other comprehensive (loss) income, net of tax:
Unrealized losses on derivative instruments designated as cash flow hedges, net of tax	(7,518)	(9,198)	(5,922)
Losses on derivative instruments designated as cash flow hedges reclassified to cost of goods sold, net of tax	8,863	9,197	800
Change in pension and retiree benefit obligations, net of tax	(13,722)	(1,612)	4,576
Total comprehensive loss, net of tax	$ (49,464)	$ (75,208)	$ (18,826)