Consolidated Statements of Operations and Comprehensive Income - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Mar. 31, 2018	Mar. 31, 2017	Mar. 31, 2018	Mar. 31, 2017
Income Statement [Abstract]
Net revenues	$ 116,336	$ 107,317	$ 340,317	$ 292,980
Cost of revenues	63,570	56,534	182,717	155,364
Gross margin	52,766	50,783	157,600	137,616
Operating expenses:
Selling, general and administrative	21,138	19,229	62,928	56,093
Research and development	15,021	14,198	43,950	40,192
Amortization of intangible assets	7,104	4,732	18,568	14,222
Restructuring and other charges	1,384	459	1,792	825
Acquisition costs and other related expenses	1,281	470	2,265	1,889
Total operating expenses	45,928	39,088	129,503	113,221
Income from operations	6,838	11,695	28,097	24,395
Interest income	0	137	14	187
Interest expense	(999)	(1,893)	(1,101)	(5,613)
Other income, net	66	279	(1,065)	792
Income before income taxes	5,905	10,218	25,945	19,761
Tax provision (benefit)	2,209	3,170	(4,837)	3,690
Net income	$ 3,696	$ 7,048	$ 30,782	$ 16,071
Basic net earnings per share (in dollars per share)	$ 0.08	$ 0.16	$ 0.66	$ 0.40
Diluted net earnings per share (in dollars per share)	$ 0.08	$ 0.16	$ 0.65	$ 0.39
Weighted-average shares outstanding:
Basic (in shares)	46,844	43,773	46,685	40,573
Diluted (in shares)	47,532	44,814	47,473	41,530
Comprehensive income:
Net income	$ 3,696	$ 7,048	$ 30,782	$ 16,071
Foreign currency translation adjustments	(457)	133	(513)	(200)
Pension benefit plan, net of tax	5	0	45	0
Total other comprehensive income, net of tax	(452)	133	(468)	(200)
Total comprehensive income	$ 3,244	$ 7,181	$ 30,314	$ 15,871