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Balance Sheet Accounts (Schedule of Concentration of Risk) (Details) (Customer Concentration Risk) | 6 Months Ended | 12 Months Ended | 3 Months Ended | 6 Months Ended | 12 Months Ended | 3 Months Ended | 6 Months Ended | 3 Months Ended | 6 Months Ended | 3 Months Ended | 6 Months Ended | 12 Months Ended
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Dec. 31, 2012 Minimum Net Revenue | Jun. 30, 2012 Minimum Accounts Receivable | Dec. 31, 2012 Westcon Net Revenue | Jan. 01, 2012 Westcon Net Revenue | Dec. 31, 2012 Westcon Net Revenue | Jan. 01, 2012 Westcon Net Revenue | Jun. 30, 2012 Westcon Accounts Receivable | Dec. 31, 2012 Scansource Inc. Net Revenue | Dec. 31, 2012 Scansource Inc. Net Revenue | Jan. 01, 2012 Scansource Inc. Net Revenue | Dec. 31, 2012 Scansource Inc. Accounts Receivable | Dec. 31, 2012 Tech Data Net Revenue | Dec. 31, 2012 Tech Data Net Revenue | Dec. 31, 2012 Ericsson AB Net Revenue | Jan. 01, 2012 Ericsson AB Net Revenue | Dec. 31, 2012 Ericsson AB Net Revenue | Jan. 01, 2012 Ericsson AB Net Revenue | Dec. 31, 2012 Ericsson AB Accounts Receivable | Jun. 30, 2012 Ericsson AB Accounts Receivable
Concentration Risk [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Concentration risk | 10.00% | 10.00% | 14.00% | 22.00% | 15.00% | 19.00% | 16.00% | 12.00% | 12.00% | 13.00% | 11.00% | 12.00% | 11.00% | 10.00% | 12.00% | 10.00% | 11.00% | 16.00% | 21.00%

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- Definition For an entity that discloses a concentration risk in relation to quantitative amount, which serves as the "benchmark" (or denominator) in the equation, this concept represents the concentration percentage derived from the division. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 275 -SubTopic 10 -Section 50 -Paragraph 18 -URI http://asc.fasb.org/extlink&oid=6927468&loc=d3e6351-108592 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 825 -SubTopic 10 -Section 50 -Paragraph 21 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=7491637&loc=d3e13537-108611 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 275 -SubTopic 10 -Section 50 -Paragraph 20 -URI http://asc.fasb.org/extlink&oid=6927468&loc=d3e6404-108592 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 825 -SubTopic 10 -Section 50 -Paragraph 20 -URI http://asc.fasb.org/extlink&oid=7491637&loc=d3e13531-108611 + Details
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