Goodwill and Other Intangible Assets, Net Other Intangible Assets (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 28, 2014	Dec. 31, 2013
Finite-Lived Intangible Assets [Line Items]
Gross Amount	$ 119,058	$ 119,141
Accumulated Amortization	(32,084)	(29,692)
Customer Lists and Relationships [Member]
Finite-Lived Intangible Assets [Line Items]
Gross Amount	109,709	109,790
Accumulated Amortization	(25,719)	(23,647)
Trademarks and Tradenames [Member]
Finite-Lived Intangible Assets [Line Items]
Gross Amount	2,695	2,695
Accumulated Amortization	(1,704)	(1,594)
Non-Compete Agreements and other [Member]
Finite-Lived Intangible Assets [Line Items]
Gross Amount	6,131	6,133
Accumulated Amortization	(4,262)	(4,055)
Patents [Member]
Finite-Lived Intangible Assets [Line Items]
Gross Amount	523	523
Accumulated Amortization	$ (399)	$ (396)
Amortization period, in years	17 years
Minimum [Member] | Customer Lists and Relationships [Member]
Finite-Lived Intangible Assets [Line Items]
Amortization period, in years	6 years
Minimum [Member] | Trademarks and Tradenames [Member]
Finite-Lived Intangible Assets [Line Items]
Amortization period, in years	3 years
Minimum [Member] | Non-Compete Agreements and other [Member]
Finite-Lived Intangible Assets [Line Items]
Amortization period, in years	1 year
Maximum [Member] | Customer Lists and Relationships [Member]
Finite-Lived Intangible Assets [Line Items]
Amortization period, in years	21 years
Maximum [Member] | Trademarks and Tradenames [Member]
Finite-Lived Intangible Assets [Line Items]
Amortization period, in years	7 years
Maximum [Member] | Non-Compete Agreements and other [Member]
Finite-Lived Intangible Assets [Line Items]
Amortization period, in years	9 years