Goodwill (Details) $ in Thousands	6 Months Ended
	Jun. 30, 2018 USD ($)
Goodwill [Roll Forward]
December 31, 2017	$ 2,470,047	[1]
Acquisitions and related adjustments	240,112
Foreign currency translation adjustment	(37,042)
June 30, 2018	2,673,117	[1]
Goodwill, Impaired, Accumulated Impairment Loss	1,026,702
Global Components [Member]
Goodwill [Roll Forward]
December 31, 2017	1,264,869	[1]
Acquisitions and related adjustments	225,937
Foreign currency translation adjustment	(17,896)
June 30, 2018	1,472,910	[1]
Goodwill, Impaired, Accumulated Impairment Loss	716,925
Global ECS [Member]
Goodwill [Roll Forward]
December 31, 2017	1,205,178	[1]
Acquisitions and related adjustments	14,175
Foreign currency translation adjustment	(19,146)
June 30, 2018	1,200,207	[1]
Goodwill, Impaired, Accumulated Impairment Loss	$ 309,777

[1] The total carrying value of goodwill for all periods in the table above is reflected net of $1,026,702 of accumulated impairment charges, of which $716,925 was recorded in the global components business segment and $309,777 was recorded in the global enterprise computing solutions business segment.