CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS (unaudited) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2017	Dec. 31, 2016
Income Statement [Abstract]
Net sales	$ 171,229	$ 125,552	$ 356,484	$ 253,570
Cost of sales	137,259	94,747	282,531	191,926
Gross profit	33,970	30,805	73,953	61,644
Selling, general and administrative expenses	28,063	28,071	59,212	49,095
Research and development expenses	2,122	1,341	3,737	2,391
Operating income	3,785	1,393	11,004	10,158
Other (expense) income:
Interest expense	(5,048)	(2,669)	(10,403)	(4,902)
Interest and other income, net	764	342	1,038	590
Other (expense) income, Total	(4,284)	(2,327)	(9,365)	(4,312)
Income (loss) before income taxes	(499)	(934)	1,639	5,846
Income tax provision (benefit)	13,365	(370)	15,049	2,025
Net (loss) income	$ (13,864)	$ (564)	$ (13,410)	$ 3,821
Basic (loss) income per common share (in dollars per share)	$ (0.39)	$ (0.02)	$ (0.38)	$ 0.13
Diluted (loss) income per common share (in dollars per share)	$ (0.39)	$ (0.02)	$ (0.38)	$ 0.13
Weighted average shares outstanding:
Basic (in shares)	35,210	30,029	35,093	29,831
Diluted (in shares)	35,210	30,029	35,093	30,163