Goodwill and Purchased Intangible Assets (Details) (USD $)	12 Months Ended
	Jun. 30, 2013	Jun. 30, 2012	Jun. 30, 2011
Changes in the carrying amount of goodwill
Balance at the beginning of the period	$ 59,215,000	$ 54,474,000
Addition related to acquisition	77,000
Currency translation and other adjustment	76,000
Adjustments related to prior year acquisition		4,741,000
Balance at the end of the period	59,368,000	59,215,000	54,474,000
Intangible Assets
Total gross carrying amount	59,290,000	68,615,000
Impairment charge recorded due to a decrease in projected future usage of the technology	12,200,000
Accumulated Amortization	(27,394,000)	(18,796,000)
Net Amount, Finite Lived Intangibles	31,896,000
Total net carrying amount	31,896,000	49,819,000
Amortization expense	10,400,000	16,200,000	1,200,000
Estimated future amortization expense of purchased intangible assets
2014	8,380,000
2015	7,953,000
2016	7,953,000
2017	7,568,000
2018	42,000
Net Amount, Finite Lived Intangibles	31,896,000
Minimum
Intangible Assets
Useful Lives	1 year
Maximum
Intangible Assets
Useful Lives	6 years
In-process research and development (CPAC)
Intangible Assets
Gross Carrying Amount, Indefinite Lived Intangibles		12,800,000
Impairment charge recorded due to a decrease in projected future usage of the technology	12,200,000
Net Amount, Indefinite Lived Intangibles		12,800,000
Developed technology
Intangible Assets
Gross Carrying Amount, Finite Lived Intangibles	46,747,000	43,455,000
Accumulated Amortization	(15,276,000)	(9,161,000)
Net Amount, Finite Lived Intangibles	31,471,000	34,294,000
Estimated future amortization expense of purchased intangible assets
Net Amount, Finite Lived Intangibles	31,471,000	34,294,000
Developed technology | Minimum
Intangible Assets
Useful Lives	5 years
Developed technology | Maximum
Intangible Assets
Useful Lives	6 years
Backlog
Intangible Assets
Useful Lives	1 year 3 months
Gross Carrying Amount, Finite Lived Intangibles	10,500,000	10,500,000
Accumulated Amortization	(10,500,000)	(8,867,000)
Net Amount, Finite Lived Intangibles		1,633,000
Estimated future amortization expense of purchased intangible assets
Net Amount, Finite Lived Intangibles		1,633,000
Distributor license
Intangible Assets
Gross Carrying Amount, Finite Lived Intangibles	2,043,000	1,860,000
Accumulated Amortization	(1,618,000)	(768,000)
Net Amount, Finite Lived Intangibles	425,000	1,092,000
Estimated future amortization expense of purchased intangible assets
Net Amount, Finite Lived Intangibles	$ 425,000	$ 1,092,000
Distributor license | Minimum
Intangible Assets
Useful Lives	1 year 6 months
Distributor license | Maximum
Intangible Assets
Useful Lives	2 years 6 months