Consolidated Statements Of Operations And Comprehensive Income (Loss) - USD ($) shares in Thousands, $ in Thousands	12 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2014
Income Statement [Abstract]
Net revenues	$ 270,154	$ 234,847	$ 208,729
Cost of revenues	145,380	124,628	113,985
Gross margin	124,774	110,219	94,744
Operating expenses:
Selling, general and administrative	52,952	49,010	53,685
Research and development	33,543	32,554	35,693
Amortization of intangible assets	8,842	7,008	7,328
Restructuring and other charges	1,240	3,175	5,443
Impairment of Long-Lived Assets Held-for-use	231	0	0
Acquisition costs and other related expenses	3,993	117	0
Total operating expenses	100,801	91,864	102,149
Income (loss) from operations	23,973	18,355	(7,405)
Interest income	131	21	9
Interest expense	(1,172)	(34)	(49)
Other income, net	2,354	453	1,532
Income (loss) from continuing operations before income taxes	25,286	18,795	(5,913)
Tax provision (benefit)	5,544	4,366	(1,841)
Income (loss) from continuing operations	19,742	14,429	(4,072)
Loss from discontinued operations, net of income taxes	0	(4,060)	(7,353)
Net income (loss)	$ 19,742	$ 10,369	$ (11,425)
Basic net earnings (loss) per share:
(Loss) income from continuing operations (dollars per share)	$ 0.58	$ 0.45	$ (0.13)
(Loss) income from discontinued operations (dollars per share)	0.00	(0.13)	(0.24)
Basic net (loss) earnings per share (dollars per share)	0.58	0.32	(0.37)
Diluted net earnings (loss) per share:
(Loss) income from continuing operations (dollars per share)	0.56	0.44	(0.13)
(Loss) income from discontinued operations (dollars per share)	0.00	(0.13)	(0.24)
Diluted net (loss) earnings per share (dollars per share)	$ 0.56	$ 0.31	$ (0.37)
Weighted-average shares outstanding:
Basic (in shares)	34,241	32,114	31,000
Diluted (in shares)	35,097	32,939	31,000
Comprehensive income (loss):
Net income (loss)	$ 19,742	$ 10,369	$ (11,425)
Foreign currency translation adjustments	171	(235)	65
Net unrealized (loss) gain on investments	0	0	(16)
Total comprehensive income (loss)	$ 19,913	$ 10,134	$ (11,376)