Consolidated Statements Of Operations And Comprehensive Income (Loss) (USD $) In Thousands, except Per Share data, unless otherwise specified	12 Months Ended
	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2012
Income Statement [Abstract]
Net revenues	$ 208,729	$ 194,231	$ 237,070
Cost of revenues	113,985	116,073	103,262
Gross margin	94,744	78,158	133,808
Operating expenses:
Selling, general and administrative	53,685	54,764	55,625
Research and development	35,693	32,604	45,984
Amortization of intangible assets	7,328	8,222	3,551
Restructuring and other charges	5,443	7,060	2,712
Acquisition costs and other related expenses	0	318	1,219
Change in the fair value of the liability related to the LNX earn-out	0	0	(4,938)
Total operating expenses	102,149	102,968	104,153
(Loss) income from operations	(7,405)	(24,810)	29,655
Interest income	9	7	13
Interest expense	(49)	(38)	(40)
Other income, net	1,532	558	1,686
(Loss) income from continuing operations before income taxes	(5,913)	(24,283)	31,314
Tax (benefit) provision	(1,841)	(10,501)	8,991
(Loss) income from continuing operations	(4,072)	(13,782)	22,323
(Loss) income from discontinued operations, net of income taxes	(7,353)	574	296
Net (loss) income	(11,425)	(13,208)	22,619
Basic net earnings (loss) per share:
(Loss) income from continuing operations (dollars per share)	$ (0.13)	$ (0.46)	$ 0.76
(Loss) income from discontinued operations (dollars per share)	$ (0.24)	$ 0.02	$ 0.01
Basic net (loss) earnings per share (dollars per share)	$ (0.37)	$ (0.44)	$ 0.77
Diluted net earnings (loss) per share:
(Loss) income from continuing operations (dollars per share)	$ (0.13)	$ (0.46)	$ 0.74
(Loss) income from discontinued operations (dollars per share)	$ (0.24)	$ 0.02	$ 0.01
Diluted net (loss) earnings per share (dollars per share)	$ (0.37)	$ (0.44)	$ 0.75
Weighted-average shares outstanding:
Basic (in shares)	31,000	30,128	29,477
Diluted (in shares)	31,000	30,128	30,085
Comprehensive (loss) income:
Net (loss) income	(11,425)	(13,208)	22,619
Foreign currency translation adjustments	65	(359)	53
Net unrealized (loss) gain on investments	(16)	15	(2)
Total comprehensive (loss) income	$ (11,376)	$ (13,552)	$ 22,670