Acquisitions (Details) $ / shares in Units, $ in Thousands	3 Months Ended																12 Months Ended
	Dec. 31, 2018 USD ($) $ / shares		Sep. 29, 2018 USD ($) $ / shares		Jun. 30, 2018 USD ($) $ / shares		Mar. 31, 2018 USD ($) $ / shares		Dec. 31, 2017 USD ($) $ / shares		Sep. 30, 2017 USD ($) $ / shares		Jul. 01, 2017 USD ($) $ / shares		Apr. 01, 2017 USD ($) $ / shares		Dec. 31, 2018 USD ($) Acquisitions $ / shares		Dec. 31, 2017 USD ($) Acquisitions $ / shares		Dec. 31, 2016 USD ($) Acquisitions $ / shares
Business Acquisition [Line Items]
Goodwill	$ 2,624,690	[1]							$ 2,470,047	[1]							$ 2,624,690	[1]	$ 2,470,047	[1]	$ 2,392,220	[2]
Payments to acquire businesses, net of cash acquired																	331,563		3,628		64,751
Business Acquisition, Pro Forma Revenue																			26,712,335
Net income attributable to shareholders	$ 230,653	[3]	$ 176,533		$ 169,915		$ 139,094		$ 53,653	[3]	$ 134,064		$ 99,722	[4]	$ 114,737		$ 716,195		402,176		$ 522,815
Business Acquisition, Pro Forma Net Income (Loss)																			$ 405,966
Earnings Per Share, Basic | $ / shares	$ 2.66	[5]	$ 2.02	[5]	$ 1.94	[5]	$ 1.58	[5]	$ 0.61	[5]	$ 1.52	[5]	$ 1.12	[5]	$ 1.29	[5]	$ 8.19		$ 4.54		$ 5.75
Business Acquisition, Pro Forma Earnings Per Share, Basic | $ / shares																			4.58
Earnings Per Share, Diluted | $ / shares	$ 2.63	[5]	$ 1.99	[5]	$ 1.92	[5]	$ 1.56	[5]	$ 0.60	[5]	$ 1.50	[5]	$ 1.11	[5]	$ 1.27	[5]	$ 8.10	[6]	4.48	[6]	$ 5.68	[6]
Business Acquisition, Pro Forma Earnings Per Share, Diluted | $ / shares																			$ 4.52
e-Infochips [Member]
Business Acquisition [Line Items]
Goodwill	$ 197,126																$ 197,126
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Assets, Receivables	13,670																13,670
Business Combination, Adjustment, Other Assets	22,755
Business Combination, Adjustment, Intangibles	56,290
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Property, Plant, and Equipment	3,485																3,485
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Assets, Other	46,488																46,488
Cash Acquired from Acquisition																	14,769
Business Combination, Pro Forma Information, Revenue of Acquiree since Acquisition Date, Actual																	89,139
Business Acquisition, Cost of Acquired Entity, Cash Paid																	327,628
Payments to acquire businesses, net of cash acquired																	312,859
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Liabilities, Accounts Payable	(520)																(520)
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Inventory	1,512																1,512
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Indefinite-Lived Intangible Assets	128,000																128,000
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Liabilities, Other	(33,836)																(33,836)
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Deferred Tax Liabilities	(41,474)																(41,474)
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Noncurrent Liabilities	(1,592)																$ (1,592)
Series of Individually Immaterial Business Acquisitions [Member]
Business Acquisition [Line Items]
Number of Businesses Acquired | Acquisitions																	1		2		3
Payments to acquire businesses, net of cash acquired																	$ 18,704		$ 3,628		$ 63,869
Data Modul AG [Member]
Business Acquisition [Line Items]
Business Acquisition, Percentage of Voting Interests Acquired									69.20%										69.20%
Additional Percentage Interest Acquired of Subsidiary Shares from Noncontrolling Interest																			11.90%
Payments to Acquire Additional Interest in Subsidiaries																			$ 23,350,000
Trade Names [Member] | e-Infochips [Member]
Business Acquisition [Line Items]
Finite-Lived Intangible Asset, Useful Life																	10 years
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Indefinite-Lived Intangible Assets	19,000																$ 19,000
Customer Relationships [Member]
Business Acquisition [Line Items]
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life																			10 years		10 years
Customer Relationships [Member] | e-Infochips [Member]
Business Acquisition [Line Items]
Finite-Lived Intangible Asset, Useful Life																	15 years
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Indefinite-Lived Intangible Assets	109,000																$ 109,000
Accrued Liabilities [Member] | e-Infochips [Member]
Business Acquisition [Line Items]
Business Combination, Adjustment, Financial Liabilities	(25,241)
deferred tax liabilities [Member] | e-Infochips [Member]
Business Acquisition [Line Items]
Business Combination, Adjustment, Financial Liabilities	$ (19,505)

[1] 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 $1,026,702 of accumulated impairment charges, of which $716,925 was recorded in the global components business segment and $309,777 was recorded in the global ECS business segment.

[2] The total carrying value of goodwill of companies acquired as of December 31, 2016 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.

[3] Net income attributable to shareholders includes a U.S. Tax Act benefit of $28.3 million and expense of $124.7 million during the fourth quarter of 2018 and 2017, respectively.

[4] Net income attributable to shareholders includes a loss on extinguishment of debt of $58.8 million during the second quarter of 2017.

[5] 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.

[6] Stock-based compensation awards for the issuance of 651 shares, 380 shares, and 766 shares for the years ended December 31, 2018, 2017, and 2016, respectively, were excluded from the computation of net income per share on a diluted basis as their effect was anti-dilutive.