Goodwill (Details) $ in Thousands	9 Months Ended
	Sep. 30, 2017 USD ($)
Goodwill [Roll Forward]
December 31, 2016	$ 2,392,220	[1]
Acquisitions and related adjustments	6,149
Foreign currency translation adjustment	72,207
September 30, 2017	2,470,576	[1]
Goodwill, Impaired, Accumulated Impairment Loss	1,018,780
Global Components [Member]
Goodwill [Roll Forward]
December 31, 2016	1,239,741	[1]
Acquisitions and related adjustments	(102)
Foreign currency translation adjustment	17,451
September 30, 2017	1,257,090	[1]
Goodwill, Impaired, Accumulated Impairment Loss	716,925
Global ECS [Member]
Goodwill [Roll Forward]
December 31, 2016	1,152,479	[1]
Acquisitions and related adjustments	6,251
Foreign currency translation adjustment	54,756
September 30, 2017	1,213,486	[1]
Goodwill, Impaired, Accumulated Impairment Loss	$ 301,855

[1] The total carrying value of goodwill 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.