Goodwill and Intangible Assets Intangible Assests (Excluding Goodwill) (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012	Dec. 31, 2012
Schedule of Finite-lived and Indefinite-lived Intangible Assets [Line Items]
Finite-Lived Intangible Assets, Gross	$ 219,297		$ 219,297		$ 222,031
Finite-Lived Intangible Assets, Accumulated Amortization	(90,632)		(90,632)		(80,330)
Indefinite-Lived Intangible Assets (Excluding Goodwill)	47,931		47,931		47,762
Amortization expense	4,825	3,810	14,642	10,130
Finite-Lived Intangible Assets, Amortization Expense, Next Twelve Months	19,200		19,200
Finite-Lived Intangible Assets, Amortization Expense, Year Two	17,800		17,800
Finite-Lived Intangible Assets, Amortization Expense, Year Three	16,200		16,200
Finite-Lived Intangible Assets, Amortization Expense, Year Four	14,300		14,300
Finite-Lived Intangible Assets, Amortization Expense, Year Five	13,400		13,400
Trademarks and trade names [Member]
Schedule of Finite-lived and Indefinite-lived Intangible Assets [Line Items]
Indefinite-Lived Intangible Assets (Excluding Goodwill)	47,931		47,931		47,762
Unpatented Technology [Member]
Schedule of Finite-lived and Indefinite-lived Intangible Assets [Line Items]
Finite-Lived Intangible Assets, Gross	43,081		43,081		45,078
Finite-Lived Intangible Assets, Accumulated Amortization	(11,185)		(11,185)		(11,286)
Patents [Member]
Schedule of Finite-lived and Indefinite-lived Intangible Assets [Line Items]
Finite-Lived Intangible Assets, Gross	7,908		7,908		9,880
Finite-Lived Intangible Assets, Accumulated Amortization	(5,217)		(5,217)		(6,664)
Product Names [Member]
Schedule of Finite-lived and Indefinite-lived Intangible Assets [Line Items]
Finite-Lived Intangible Assets, Gross	9,250		9,250		9,068
Finite-Lived Intangible Assets, Accumulated Amortization	(4,063)		(4,063)		(2,712)
Customer Relationships [Member]
Schedule of Finite-lived and Indefinite-lived Intangible Assets [Line Items]
Finite-Lived Intangible Assets, Gross	159,058		159,058		158,005
Finite-Lived Intangible Assets, Accumulated Amortization	$ (70,167)		$ (70,167)		$ (59,668)