Goodwill and Intangible Assets Intangible Assests (Excluding Goodwill) (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2014	Mar. 31, 2013	Dec. 31, 2013
Schedule of Finite-lived and Indefinite-lived Intangible Assets [Line Items]
Finite-Lived Intangible Assets, Gross	$ 211,443		$ 219,424
Finite-Lived Intangible Assets, Accumulated Amortization	(91,698)		(95,158)
Amortization expense	4,489	4,895
Finite-Lived Intangible Assets, Amortization Expense, Next Twelve Months	17,800
Finite-Lived Intangible Assets, Amortization Expense, Year Two	16,200
Finite-Lived Intangible Assets, Amortization Expense, Year Three	14,300
Finite-Lived Intangible Assets, Amortization Expense, Year Four	13,400
Finite-Lived Intangible Assets, Amortization Expense, Year Five	12,700
Trademarks and trade names [Member]
Schedule of Finite-lived and Indefinite-lived Intangible Assets [Line Items]
Indefinite-Lived Intangible Assets (Excluding Goodwill)	47,880		47,876
Unpatented Technology [Member]
Schedule of Finite-lived and Indefinite-lived Intangible Assets [Line Items]
Finite-Lived Intangible Assets, Gross	36,314		43,133
Finite-Lived Intangible Assets, Accumulated Amortization	(5,501)		(11,776)
Patents [Member]
Schedule of Finite-lived and Indefinite-lived Intangible Assets [Line Items]
Finite-Lived Intangible Assets, Gross	7,906		7,904
Finite-Lived Intangible Assets, Accumulated Amortization	(5,578)		(5,397)
Product Names [Member]
Schedule of Finite-lived and Indefinite-lived Intangible Assets [Line Items]
Finite-Lived Intangible Assets, Gross	9,155		9,244
Finite-Lived Intangible Assets, Accumulated Amortization	(4,937)		(4,525)
Customer Relationships [Member]
Schedule of Finite-lived and Indefinite-lived Intangible Assets [Line Items]
Finite-Lived Intangible Assets, Gross	158,068		159,143
Finite-Lived Intangible Assets, Accumulated Amortization	$ (75,682)		$ (73,460)