Revenue by Product Type (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Sep. 30, 2013 Customer	Jun. 30, 2013 Customer	Sep. 30, 2012
Segment Reporting Information [Line Items]
Number of customers accounted for 10% or more of accounts receivable	0	1
Net sales	$ 309,016		$ 270,707
Server systems [Member]
Segment Reporting Information [Line Items]
Net sales	143,283		106,849
Subsystems and accessories [Member]
Segment Reporting Information [Line Items]
Net sales	$ 165,733		$ 163,858
Sales [Member]
Segment Reporting Information [Line Items]
Percent of accounts receivable	100.00%		100.00%
Sales [Member] | Server systems [Member]
Segment Reporting Information [Line Items]
Percent of accounts receivable	46.40%		39.50%
Sales [Member] | Subsystems and accessories [Member]
Segment Reporting Information [Line Items]
Percent of accounts receivable	53.60%		60.50%
Customer Concentration Risk [Member] | One Customer [Member]
Segment Reporting Information [Line Items]
Percent of accounts receivable		14.40%