CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Mar. 31, 2020	Mar. 31, 2019	Mar. 31, 2020	Mar. 31, 2019
Income Statement [Abstract]
Net sales	$ 129,139	$ 146,679	$ 420,237	$ 453,892
Cost of goods sold	91,190	106,779	297,662	312,513
Gross profit	37,949	39,900	122,575	141,379
Selling expenses	31,968	34,422	100,488	111,323
General and administrative expenses	8,833	11,306	32,839	32,063
Restructuring and other transition expenses	0	26	0	4,700
Net losses (gains) from sales of assets	287	248	(23,375)	971
Impairment of goodwill and intangible assets	42,030	0	42,030	0
Operating expenses	83,118	46,002	151,982	149,057
Loss from operations	(45,169)	(6,102)	(29,407)	(7,678)
Other (expense) income:
Interest expense	(2,478)	(2,981)	(7,885)	(9,165)
Postretirement benefits curtailment and pension settlement charge	5,760	0	5,760	(10,948)
Other, net	1,076	495	2,941	2,105
Total other income (expense)	4,358	(2,486)	816	(18,008)
Loss before taxes	(40,811)	(8,588)	(28,591)	(25,686)
Income tax (benefit) expense	(1,034)	43,161	(1,222)	39,149
Net loss	(39,777)	(51,749)	(27,369)	(64,835)
Less: Cumulative preferred dividends, undeclared and unpaid	139	134	414	400
Net loss available to common stockholders	$ (39,916)	$ (51,883)	$ (27,783)	$ (65,235)
Net income (loss) per common share - basic (in US$ per share)	$ (2.32)	$ (3.05)	$ (1.62)	$ (3.84)
Net income (loss) per common share - diluted (in US$ per share)	$ (2.32)	$ (3.05)	$ (1.62)	$ (3.84)
Weighted average common shares outstanding - basic (in shares)	17,230,879	17,003,206	17,161,477	16,982,247
Weighted average common shares outstanding—diluted (in shares)	17,230,879	17,003,206	17,161,477	16,982,247