Segment Information Part Three (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2012	Sep. 30, 2011	Sep. 30, 2012	Sep. 30, 2011
Product Category [Abstract]
Consolidated net sales	$ 846,273	$ 900,218	$ 2,609,365	$ 2,702,240
Consolidated net sales (in hundredths)	100.00%	100.00%	100.00%	100.00%
Computers [Member]
Product Category [Abstract]
Consolidated net sales	251,900	279,700	752,300	741,500
Consolidated net sales (in hundredths)	30.00%	31.00%	29.00%	28.00%
Computer Accessories & Software [Member]
Product Category [Abstract]
Consolidated net sales	233,800	247,500	731,000	769,100
Consolidated net sales (in hundredths)	27.00%	27.00%	28.00%	28.00%
Consumer Electronics [Member]
Product Category [Abstract]
Consolidated net sales	132,700	167,000	447,300	543,400
Consolidated net sales (in hundredths)	16.00%	19.00%	17.00%	20.00%
Industrial Products [Member]
Product Category [Abstract]
Consolidated net sales	110,400	87,000	303,600	236,600
Consolidated net sales (in hundredths)	13.00%	10.00%	12.00%	9.00%
Computer Components [Member]
Product Category [Abstract]
Consolidated net sales	93,300	99,500	301,400	348,500
Consolidated net sales (in hundredths)	11.00%	11.00%	11.00%	13.00%
Other Products [Member]
Product Category [Abstract]
Consolidated net sales	$ 24,200	$ 19,500	$ 73,800	$ 63,100
Consolidated net sales (in hundredths)	3.00%	2.00%	3.00%	2.00%