Revenue by Product Type (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Sep. 30, 2012	Sep. 30, 2011
Segment Reporting Information [Line Items]
Net sales	$ 270,707	$ 247,885
Percent of net sales	100.00%	100.00%
Server systems [Member]
Segment Reporting Information [Line Items]
Net sales	106,849	97,619
Percent of net sales	39.50%	39.40%
Subsystems and accessories [Member]
Segment Reporting Information [Line Items]
Net sales	$ 163,858	$ 150,266
Percent of net sales	60.50%	60.60%