Summary of Significant Accounting Policies Significant Accounting Policies (Details) - USD ($) $ in Thousands	3 Months Ended	6 Months Ended	12 Months Ended
	Mar. 28, 2020	Jun. 29, 2019	Dec. 31, 2020		Dec. 31, 2019		Dec. 31, 2018
Goodwill [Line Items]
Gain (loss) on investments, net	$ 16,810		$ 5,348		$ 11,831		$ (14,166)
Goodwill			2,115,469	[1]	2,061,322	[1]	2,624,690	[2]
Selling, General and Administrative Expense			2,087,050		2,191,612		2,303,051
Global Components [Member]
Goodwill [Line Items]
Goodwill			894,975	[1]	883,496	[1]	1,437,501	[2]
Global ECS [Member]
Goodwill [Line Items]
Goodwill			$ 1,220,494	[1]	1,177,826	[1]	1,187,189	[2]
Customer Concentration Risk [Member]
Goodwill [Line Items]
Concentration Risk, Percentage			2.00%
Other Supplier Concentration Risk [Member]
Goodwill [Line Items]
Concentration Risk, Percentage			7.00%
Supplier Concentration Risk [Member]
Goodwill [Line Items]
Concentration Risk, Percentage			14.00%
Americas [Member] | Global Components [Member]
Goodwill [Line Items]
Goodwill, Impairment Loss		$ 509,000
Goodwill, Impairment Loss, Net of Tax		457,806
Goodwill		600,000	$ 607,315
Americas [Member] | Global ECS [Member]
Goodwill [Line Items]
Goodwill			$ 787,675
Reporting Unit, Percentage of Fair Value in Excess of Carrying Amount			175.00%
EMEA [Member] | Global Components [Member]
Goodwill [Line Items]
Goodwill			$ 90,463
Reporting Unit, Percentage of Fair Value in Excess of Carrying Amount			175.00%
EMEA [Member] | Global ECS [Member]
Goodwill [Line Items]
Goodwill			$ 432,819
Reporting Unit, Percentage of Fair Value in Excess of Carrying Amount			175.00%
Asia-Pacific [Member] | Global Components [Member]
Goodwill [Line Items]
Goodwill, Impairment Loss		61,175
Goodwill, Impairment Loss, Net of Tax		$ 61,175
e-Infochips [Member] | Global Components [Member]
Goodwill [Line Items]
Goodwill			$ 197,197
Reporting Unit, Percentage of Fair Value in Excess of Carrying Amount			10.00%
Shipping and Handling [Member]
Goodwill [Line Items]
Selling, General and Administrative Expense			$ 95,634		$ 97,227		$ 103,553

[1] The total carrying value of goodwill of companies acquired as of December 31, 2020 and 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 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.