Goodwill and Intangible Assets Schedule of Finite and Indefinite-Lived Intangible Assets (Details) (USD $)	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 30, 2011
Schedule of Finite and Indefinite-Lived Intangible Assets [Line Items]
Finite lived intangible assets, gross	$ 221,915,000	$ 218,332,000
Accumulated amortization	(180,311,000)	(162,368,000)
Finite lived intangible assets, net	40,631,000	54,589,000
Finite lived intangible assets including customer relationships, net	41,604,000	55,964,000
Intangible assets, gross (excluding goodwill)	228,015,000	224,432,000
Indefinite and finite lived intangible assets accumulated amortization	180,311,000	162,368,000
Intangible assets including customer relationships, net (excluding goodwill)	47,704,000	62,064,000
Intangible asset amortization expense, [Abstract]
Amortization of intangible assets	15,200,000	16,100,000	18,100,000
2014	13,482,000
2015	11,900,000
2016	10,578,000
2017	4,427,000
2018	478,000
Trade Names
Schedule of Finite and Indefinite-Lived Intangible Assets [Line Items]
Indefinite lived intangible assets, gross	6,100,000	6,100,000
Indefinite lived intangible assets accumulate amortization	0	0
Indefinite lived intangible assets, net	6,100,000	6,100,000
Customer Relationships
Schedule of Finite and Indefinite-Lived Intangible Assets [Line Items]
Finite lived intangible assets, gross	215,922,000	212,532,000
Accumulated amortization	(175,291,000)	(157,943,000)
Finite lived intangible assets, net	40,631,000	54,589,000
Intangible asset amortization expense, [Abstract]
Finite-lived intangible asset, useful life	12 years
Patents
Schedule of Finite and Indefinite-Lived Intangible Assets [Line Items]
Finite lived intangible assets, gross	5,993,000	5,800,000
Accumulated amortization	(5,020,000)	(4,425,000)
Finite lived intangible assets, net	$ 973,000	$ 1,375,000
Intangible asset amortization expense, [Abstract]
Finite-lived intangible asset, useful life	10 years