Cost in Excess of Net Assets of Companies Acquired - Goodwill (Details) $ in Thousands	9 Months Ended
	Sep. 26, 2015 USD ($)
Goodwill [Roll Forward]
December 31, 2014	$ 2,069,209	[1]
Acquisitions	346,784
Foreign currency translation adjustment	(49,025)
September 26, 2015	2,366,968	[1]
Goodwill, Impaired, Accumulated Impairment Loss	1,018,780
Global Components [Member]
Goodwill [Roll Forward]
December 31, 2014	1,051,783	[1]
Acquisitions	179,010
Foreign currency translation adjustment	(4,713)
September 26, 2015	1,226,080	[1]
Goodwill, Impaired, Accumulated Impairment Loss	716,925
Global ECS [Member]
Goodwill [Roll Forward]
December 31, 2014	1,017,426	[1]
Acquisitions	167,774
Foreign currency translation adjustment	(44,312)
September 26, 2015	1,140,888	[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.