Acquisitions (Details) - USD ($) $ / shares in Units, $ in Thousands		3 Months Ended							12 Months Ended
		Mar. 31, 2018		Dec. 31, 2017	Sep. 30, 2017	Jul. 01, 2017	Apr. 01, 2017		Dec. 31, 2017
Business Acquisition [Line Items]
Business Acquisition, Pro Forma Revenue							$ 5,774,079
Purchase of shares from noncontrolling interest		$ 0					23,350
Payments to Acquire Businesses, Net of Cash Acquired		331,467					0
Sales		6,875,613	[1]	$ 7,539,449	$ 6,856,108	$ 6,422,226	5,736,780	[1]	$ 26,554,563
Net income attributable to shareholders		$ 139,094		53,653	$ 134,064	$ 99,722	114,737		402,176
Business Acquisition, Pro Forma Net Income (Loss)							$ 115,222
Basic		$ 1.58					$ 1.29
Business Acquisition, Pro Forma Earnings Per Share, Basic							1.29
Diluted	[2]	$ 1.56					1.27
Business Acquisition, Pro Forma Earnings Per Share, Diluted							$ 1.27
Business Combination, Recognized Identifiable Assets Acquired, Goodwill, and Liabilities Assumed, Net	[3]	$ 2,703,542		$ 2,470,047					$ 2,470,047
Customer Relationships [Member]
Business Acquisition [Line Items]
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life		10 years							10 years
Other Intangible Assets [Member]
Business Acquisition [Line Items]
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life		5 years							5 years
e-Infochips [Member]
Business Acquisition [Line Items]
Payments to Acquire Businesses, Gross		$ 327,532
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Assets, Receivables		14,162
Payments to Acquire Businesses, Net of Cash Acquired		312,763
Cash Acquired from Acquisition		14,769
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Inventory		1,512
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Property, Plant, and Equipment		8,114
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Assets, Other		24,021
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, identifiable intangible assets		71,710
Business Combination, Recognized Identifiable Assets Acquired, Goodwill, and Liabilities Assumed, Net		202,267
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Liabilities, Accounts Payable		(517)
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Accrued Expenses		(6,909)
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Noncurrent Liabilities, Other		(1,597)
Business Combination, Pro Forma Information, Revenue of Acquiree since Acquisition Date, Actual		$ 19,586
e-Infochips [Member] | Customer Relationships [Member]
Business Acquisition [Line Items]
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life		9 years
Data Modul AG [Member]
Business Acquisition [Line Items]
Additional Percentage Interest Acquired of Subsidiary Shares from Noncontrolling Interest									11.90%
Business Acquisition, Percentage of Voting Interests Acquired				69.20%					69.20%
Purchase of shares from noncontrolling interest									$ 23,350
Series of Individually Immaterial Business Acquisitions [Member]
Business Acquisition [Line Items]
Payments to Acquire Businesses, Net of Cash Acquired		$ 18,704							$ 4

[1] Includes sales related to the United States of $2,649,668 and $2,342,128 for the first quarter of 2018 and 2017, respectively.

[2] Stock-based compensation awards for the issuance of 415 and 244 for the first quarter of 2018 and 2017, respectively, were excluded from the computation of net income per share on a diluted basis as their effect was anti-dilutive.

[3] 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 ECS business segment.