Summary of Significant Accounting Policies Significant Accounting Policies (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019		Dec. 31, 2018		Dec. 31, 2017		Sep. 28, 2019
Goodwill [Line Items]
Selling, General and Administrative Expense	$ 2,191,612		$ 2,303,051		$ 2,162,045
Goodwill	2,061,322	[1]	2,624,690	[2]	2,470,047	[2]
Gain (loss) on investments, net	11,831		(14,166)		(6,577)
Amortization of stock-based compensation	41,070		46,238		39,122
Global Components [Member]
Goodwill [Line Items]
Goodwill	883,496	[1]	1,437,501	[2]	1,264,869	[2]
Global ECS [Member]
Goodwill [Line Items]
Goodwill	1,177,826	[1]	1,187,189	[2]	1,205,178	[2]
Global eInfochips [Domain]
Goodwill [Line Items]
Goodwill	$ 197,200
Reporting Unit, Percentage of Fair Value in Excess of Carrying Amount	6.00%
Americas [Member] | Global Components [Member]
Goodwill [Line Items]
Goodwill, Impairment Loss	$ 509,000
Goodwill, Impairment Loss, Net of Tax	457,806
Goodwill	$ 603,500						$ 600,000
Reporting Unit, Percentage of Fair Value in Excess of Carrying Amount	3.00%
Americas [Member] | Global ECS [Member]
Goodwill [Line Items]
Goodwill	$ 787,400
Reporting Unit, Percentage of Fair Value in Excess of Carrying Amount	509.00%
EMEA [Member] | Global Components [Member]
Goodwill [Line Items]
Goodwill	$ 82,800
Reporting Unit, Percentage of Fair Value in Excess of Carrying Amount	110.00%
EMEA [Member] | Global ECS [Member]
Goodwill [Line Items]
Goodwill	$ 390,400
Reporting Unit, Percentage of Fair Value in Excess of Carrying Amount	221.00%
Asia-Pacific [Member] | Global Components [Member]
Goodwill [Line Items]
Goodwill, Impairment Loss	$ 61,175
Goodwill, Impairment Loss, Net of Tax	61,175
Shipping and Handling [Member]
Goodwill [Line Items]
Selling, General and Administrative Expense	$ 97,227		$ 103,553		$ 90,709

[1] The total carrying value of goodwill of companies acquired as of December 31, 2019 in the table above is reflected net of $1,588,955 of accumulated impairment charges, of which $1,287,100 was recorded in the global components business segment and $301,855 was recorded in the global ECS business segment.

[2] The total carrying value of goodwill of companies acquired as of December 31, 2018 and December 31, 2017 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.