Acquisitions (Schedule of Purchase Price Allocation) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Business Combinations [Line Items]
Purchase price, net of cash acquired	$ 229,582	$ (750)	$ 94,271
Goodwill	153,320	1,279	6,779
Business Acquisition Pro Forma Information [Abstract]
Net sales	2,622,246	2,896,638	2,693,145
Net income	95,595	$ 80,025	45,271
Secure [Member]
Business Combinations [Line Items]
Purchase price paid	230,504
Cash acquired	(922)
Purchase price, net of cash acquired	229,582
Integration and Acquisition-related costs for 2015	4,527
Cash	922
Accounts receivable	12,839
Inventories	16,020
Other current assets	1,569
Property, plant and equipment	2,048
Trade names and trademarks intangible	7,800
Other assets	97
Technology licenses intangible	15,500
Customer relationships intangible	67,100
Goodwill	153,320
Current liabilities	(16,714)
Long-term debt	(24)
Deferred income taxes	(29,173)
Other long-term liabilities	(800)
Total identifiable net assets	230,504
Suntron [Member]
Business Combinations [Line Items]
Purchase price paid			18,582
Cash acquired			(62)
Purchase price, net of cash acquired			18,520
Cash			62
Accounts receivable			11,561
Inventories			14,570
Other current assets			1,072
Property, plant and equipment			1,437
Other assets			255
Deferred income taxes			3,893
Goodwill			0
Current liabilities			(13,987)
Other long-term liabilities			(281)
Total identifiable net assets			18,582
CTS [Member]
Business Combinations [Line Items]
Purchase price paid			75,982
Cash acquired			(981)
Purchase price, net of cash acquired			75,001
Integration and Acquisition-related costs for 2015	$ 1,029
Cash			981
Accounts receivable			32,480
Inventories			40,494
Other current assets			1,472
Property, plant and equipment			15,175
Other assets			129
Customer relationships intangible			15,500
Goodwill			8,058
Current liabilities			(36,687)
Deferred income taxes			(1,620)
Total identifiable net assets			$ 75,982