Acquisitions (Schedule of Purchase Price Allocation) (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012
Business Combinations [Line Items]
Purchase price, net of cash acquired	$ 94,271
Goodwill	6,779
Business Acquisition Pro Forma Information [Abstract]
Net sales	2,693,145	2,804,757
Net income	45,485	51,563
Suntron [Member]
Business Combinations [Line Items]
Purchase price paid	19,332
Cash acquired	(62)
Purchase price, net of cash acquired	19,270
Acquisition-related costs	328
Cash	62
Accounts receivable	11,561
Inventories	14,686
Other current assets	1,072
Property, plant and equipment	1,869
Other assets	255
Deferred income taxes	3,893
Current liabilities	(13,785)
Other long-term liabilities	(281)
Total identifiable net assets	19,332
CTS [Member]
Business Combinations [Line Items]
Purchase price paid	75,982
Cash acquired	(981)
Purchase price, net of cash acquired	75,001
Acquisition-related costs	1,936
Cash	981
Accounts receivable	32,408
Inventories	40,494
Other current assets	1,472
Property, plant and equipment	17,000
Goodwill	6,779
Customer relationships intangible	15,500
Other assets	129
Deferred income taxes	(2,094)
Current liabilities	(36,687)
Total identifiable net assets	$ 75,982