Segment and Geographic Information (Details 2) (USD $) In Thousands, unless otherwise specified	12 Months Ended
Dec. 31, 2011	Dec. 31, 2010	Dec. 31, 2009
Company's revenues by product groups
Revenues	$ 2,043,958	$ 1,869,654	$ 1,576,381
Storage products [Member]
Company's revenues by product groups
Revenues	1,487,069	1,302,104	1,133,134
Networking products [Member]
Company's revenues by product groups
Revenues	453,652	473,275	384,835
Other [Member]
Company's revenues by product groups
Revenues	$ 103,237	$ 94,275	$ 58,412

Total revenue from sale of goods and services rendered during the reporting period, in the normal course of business, reduced by sales returns and allowances, and sales discounts.

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Article 5

-Section 03

-Paragraph 1

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 225

-SubTopic 10

-Section S99

-Paragraph 2

-Subparagraph (SX 210.5-03.1)

-URI http://asc.fasb.org/extlink&oid=6880815&loc=d3e20235-122688

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration