Acquisitions (Details) (USD $)	3 Months Ended	6 Months Ended
	Jun. 27, 2014	Jun. 27, 2014
Business Acquisition [Line Items]
Cash	$ (11,000)	$ (11,000)
Accounts receivable	13,332,000	13,332,000
Inventories	9,614,000	9,614,000
Property, plant and equipment	850,000	850,000
Other tangible assets	784,000	784,000
Goodwill	39,088,000
Other intangible assets	16,870,000	16,870,000
Liabilities	(7,367,000)	(7,367,000)
Total of net assets acquired	71,898,000	71,898,000
Total consideration		71,887,000
Payments to Acquire Businesses, Gross		70,500,000
Revenue from acquisition	18,800,000	18,800,000
Distribution [Member]
Business Acquisition [Line Items]
Goodwill	37,804,000
Customer Lists and Relationships [Member]
Business Acquisition [Line Items]
Other intangible assets	14,900,000	14,900,000
Customer Lists and Relationships [Member] | Small Customer Group [Member]
Business Acquisition [Line Items]
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life		11 years
Customer Lists and Relationships [Member] | Large Customer Group [Member]
Business Acquisition [Line Items]
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life		18 years
Non-Compete Agreements and other [Member]
Business Acquisition [Line Items]
Other intangible assets	1,100,000	1,100,000
Non-Compete Agreements and other [Member] | Minimum [Member]
Business Acquisition [Line Items]
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life		1 year 6 months
Non-Compete Agreements and other [Member] | Maximum [Member]
Business Acquisition [Line Items]
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life		3 years
Trademarks and Trade Names [Member]
Business Acquisition [Line Items]
Other intangible assets	$ 900,000	$ 900,000
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life		8 years