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Quarterly Financial Data (Unaudited) (Details) - USD ($) $ / shares in Units, $ in Thousands | 3 Months Ended | 12 Months Ended
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Dec. 31, 2020 | Sep. 26, 2020 | Jun. 27, 2020 | Mar. 28, 2020 | Dec. 31, 2019 | Sep. 28, 2019 | Jun. 29, 2019 | Mar. 30, 2019 | Dec. 31, 2020 | Dec. 31, 2019 | Dec. 31, 2018
Quarterly Financial Data [Abstract] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Sales |  | $ 8,454,192 |  | $ 7,231,260 |  | $ 6,606,494 |  | $ 6,381,417 |  | $ 7,338,190 |  | $ 7,078,118 |  | $ 7,344,548 |  | $ 7,155,991 |  | $ 28,673,363 | [1] | $ 28,916,847 | [1] | $ 29,676,768 | [1]
Gross profit |  | 923,686 |  | 788,590 |  | 750,463 |  | 728,391 |  | 822,943 |  | 798,841 |  | 814,909 |  | 861,688 |  | 3,191,130 |  | 3,298,381 |  | 3,700,912 |
Operating income |  | 321,412 |  | 238,182 |  | 196,613 |  | 138,304 |  | 238,108 |  | 173,218 |  | (549,190) |  | 245,560 |  | 894,511 |  | 107,696 |  | 1,147,512 |
Net income (loss) attributable to shareholders |  | $ 236,071 |  | $ 166,060 |  | $ 132,804 |  | $ 49,503 | [2] | $ 112,013 | [3] | $ 92,131 | [4] | $ (548,966) | [5] | $ 140,735 |  | $ 584,438 |  | $ (204,087) |  | $ 716,195 |
Basic |  | $ 3.12 | [6] | $ 2.15 | [6] | $ 1.69 | [6] | $ 0.62 | [6] | $ 1.37 | [6] | $ 1.11 | [6] | $ (6.48) | [6] | $ 1.65 | [6] | $ 7.49 |  | $ (2.44) |  | $ 8.19 |
Diluted |  | $ 3.08 | [6] | $ 2.13 | [6] | $ 1.68 | [6] | $ 0.61 | [6] | $ 1.36 | [6] | $ 1.10 | [6] | $ (6.48) | [6] | $ 1.63 | [6] | $ 7.43 | [7] | $ (2.44) | [7] | $ 8.10 | [7]
Effect of Fourth Quarter Events [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Impairment |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 697,993 |  |  |  | $ 7,223 |  | $ 698,246 |  | $ 0 |
Loss on disposition of businesses, net |  |  |  |  |  |  |  |  |  | $ 5,813 |  |  |  |  |  |  |  | 0 |  | 21,252 |  | 3,604 |
Other Charges |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 532 |  | 66,893 |  | 29,146 |
Effective tax rate reconciliation, impact from repatriation of foreign earnings | [8] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 0 |  | 0 |  | 28,323 |
Income Tax Expense (Benefit) |  |  |  |  |  |  |  |  |  | $ 18,193 |  |  |  |  |  |  |  |  |  |  |  |  |
Gain (loss) on investments, net |  |  |  |  |  |  |  | $ 16,810 |  |  |  |  |  |  |  |  |  | 5,348 |  | 11,831 |  | (14,166) |
Foreign tax and other loss contingencies |  |  |  |  |  |  |  | $ 32,700 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Global Components [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Quarterly Financial Data [Abstract] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Sales |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 20,502,687 |  | 20,250,735 |  | 20,856,851 |
Operating income | [9] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 780,333 |  | (10,199) |  | $ 1,007,638 |
Effect of Fourth Quarter Events [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Inventory Write-down |  |  |  |  |  |  |  |  |  |  |  |  |  | 20,114 |  |  |  |  |  | 22,332 |  |  |
Receivables and Inventory write down |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 15,851 |  |  |  |  |  | 18,037 |  |  |
Loss on disposition of businesses, net |  |  |  |  |  |  |  |  |  |  |  | $ 14,573 |  |  |  |  |  |  |  | 19,384 |  |  |
Expense Reduction Program [Member] | Severance Costs [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Effect of Fourth Quarter Events [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Other Charges |  |  |  |  |  |  |  |  |  |  |  | $ 30,906 |  |  |  |  |  |  |  |  |  |  |
Wyle Defined Benefit Plan [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Effect of Fourth Quarter Events [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Defined Benefit Plan, Net Periodic Benefit Cost (Credit), Gain (Loss) Due to Settlement |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 0 |  | $ 20,111 |  |  |
[1] | Includes sales related to the United States of $10,162,989, $11,511,611, and $12,157,306 for 2020, 2019, and 2018, respectively.
[2] | Net income attributable to shareholders for the first quarter of 2020 includes a loss on investments, net of $16,810, and reserves and other adjustments of approximately $32,700 primarily related to foreign tax and other loss contingencies. These reserves are principally associated with transactional taxes on activity from several prior years, not significant to any one year
[3] | Net income attributable to shareholders for the fourth quarter of 2019 includes a pension settlement loss of $20,111, a loss on disposition of businesses, net of $5,813, and tax expense of $18,193 related to the repatriation of foreign earnings and the wind down of the personal computer and mobility asset disposition business.
[4] | Net income attributable to shareholders for the third quarter of 2019 includes a loss on disposition of businesses, net, of $14,573, personnel charges of $30,906 related to the operating expense reduction program, previously disclosed in July 2019.
[5] | Net income attributable to shareholders for the second quarter of 2019 includes impairments of $697,993, a charge of $20,114 related to a subset of inventory held by its digital business, and a charge of $15,851 related to the receivables and inventory of its financing solutions business.
[6] | Quarterly net income per share is calculated using the weighted-average shares outstanding during each quarterly period, while net income per share for the full year is calculated using the weighted-average shares outstanding during the year. Therefore, the sum of the net income per share for each of the four quarters may not equal the net income per share for the full year. As the company reported a net loss attributable to shareholders for the second quarter of 2019, basic and diluted net loss per share attributable to shareholders are the same.
[7] | Stock-based compensation awards for the issuance of 1,143 shares, 1,614 shares, and 651 shares for the years ended December 31, 2020, 2019, and 2018, respectively, were excluded from the computation of net income (loss) per share on a diluted basis as their effect was anti-dilutive. As the company reported a net loss attributable to shareholders for 2019, basic and diluted net loss per share attributable to shareholders are the same.
[8] | For the year ended December 31, 2018, the company recorded a $28,323 benefit upon finalizing its analysis of the impact from the Tax Act.
[9] | Global components operating income for 2019 includes restructuring, integration, and other charges of $10,778, a loss on disposition of businesses, net, of $19,384, impairments of $698,246, a non-recurring charge of $22,332 related to a subset of inventory held by its digital business, and a non-recurring charge of $18,037 related to the receivables and inventory of its financing solutions business. During 2019 the company decided to narrow its digital inventory offerings and will no longer provide notes to its components customers.

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