Cost in Excess of Net Assets of Companies Acquired - Goodwill (Details) $ in Thousands	3 Months Ended
	Apr. 02, 2016 USD ($)
Goodwill [Roll Forward]
December 31, 2015	$ 2,368,832	[1]
Acquisitions and related adjustments	45,272
Foreign currency translation adjustment	22,930
April 2, 2016	2,437,034	[1]
Goodwill, Impaired, Accumulated Impairment Loss	1,018,780
Global Components [Member]
Goodwill [Roll Forward]
December 31, 2015	1,230,832	[1]
Acquisitions and related adjustments	(2,341)
Foreign currency translation adjustment	5,651
April 2, 2016	1,234,142	[1]
Goodwill, Impaired, Accumulated Impairment Loss	716,925
Global ECS [Member]
Goodwill [Roll Forward]
December 31, 2015	1,138,000	[1]
Acquisitions and related adjustments	47,613
Foreign currency translation adjustment	17,279
April 2, 2016	1,202,892	[1]
Goodwill, Impaired, Accumulated Impairment Loss	$ 301,855

[1] The total carrying value of cost in excess of net assets of companies acquired for all periods in the table above is reflected net of $1,018,780 of accumulated impairment charges, of which $716,925 was recorded in the global components business segment and $301,855 was recorded in the global ECS business segment.