CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) $ in Thousands	12 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2019
Income Statement [Abstract]
Net sales	$ 397,850	$ 501,320	$ 595,942
Cost of goods sold	296,925	363,198	416,840
Gross profit	100,925	138,122	179,102
Selling expenses	95,503	121,762	139,647
General and administrative expenses	42,945	42,569	48,959
Restructuring and other transition expenses	0	0	4,733
Net (gains) losses from sales of assets	(593)	(25,237)	465
Impairment of goodwill and intangible assets	0	42,030	0
Impairment of fixed assets	1,243	0	0
Operating expenses	139,098	181,124	193,804
Loss income from operations	(38,173)	(43,002)	(14,702)
Other (expense) income:
Interest expense	(15,962)	(10,483)	(12,000)
Postretirement benefits curtailment gains and pension settlement (charge)	6,359	5,760	(10,948)
Other, net	19,720	10,443	4,166
Total other income (expense)	10,117	5,720	(18,782)
Loss before taxes	(28,056)	(37,282)	(33,484)
Income tax expense (benefit)	13,595	(195)	40,111
Net loss	(41,651)	(37,087)	(73,595)
Less: Cumulative preferred dividends, undeclared and unpaid	574	554	535
Net (loss) income available to common stockholders	$ (42,225)	$ (37,641)	$ (74,130)
Net income (loss) per common share - basic (in US$ per share)	$ (2.39)	$ (2.19)	$ (4.36)
Net income (loss) per common share - diluted (in US$ per share)	$ (2.39)	$ (2.19)	$ (4.36)
Weighted average common shares outstanding - basic (in shares)	17,635,402	17,205,849	16,996,354
Weighted average common shares outstanding—diluted (in shares)	17,635,402	17,205,849	16,996,354