Consolidated Statements of Operations and Comprehensive Income - 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 revenues	$ 117,912	$ 98,014	$ 223,981	$ 185,663
Cost of revenues	63,752	50,625	119,147	98,830
Gross margin	54,160	47,389	104,834	86,833
Operating expenses:
Selling, general and administrative	21,222	19,320	41,790	36,864
Research and development	15,187	13,156	28,929	25,994
Amortization of intangible assets	5,827	4,888	11,464	9,490
Restructuring and other charges	313	69	408	366
Acquisition costs and other related expenses	723	998	984	1,419
Total operating expenses	43,272	38,431	83,575	74,133
Income from operations	10,888	8,958	21,259	12,700
Interest income	3	10	22	50
Interest expense	(107)	(1,898)	(110)	(3,720)
Other income, net	(316)	(87)	(1,131)	513
Income before income taxes	10,468	6,983	20,040	9,543
Tax provision (benefit)	1,335	1,779	(7,046)	520
Net income	$ 9,133	$ 5,204	$ 27,086	$ 9,023
Basic net earnings per share (in dollars per share)	$ 0.20	$ 0.13	$ 0.58	$ 0.23
Diluted net earnings per share (in dollars per share)	$ 0.19	$ 0.13	$ 0.57	$ 0.23
Weighted-average shares outstanding:
Basic (in shares)	46,752	39,151	46,701	39,004
Diluted (in shares)	47,447	39,985	47,538	39,920
Comprehensive income:
Net income	$ 9,133	$ 5,204	$ 27,086	$ 9,023
Foreign currency translation adjustments	22	(341)	(56)	(333)
Pension benefit plan, net of tax	10	0	40	0
Total other comprehensive income, net of tax	32	(341)	(16)	(333)
Total comprehensive income	$ 9,165	$ 4,863	$ 27,070	$ 8,690