Goodwill And Other Intangible Assets (Schedule Of Intangible Assets, Net Of Amortization) (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011
Finite-Lived Intangible Assets [Line Items]
Intangible assets, gross	$ 42,500	$ 18,215
Less accumulated amortization	(4,400)	(2,107)
Intangible assets, net	38,100	16,108
Weighted average useful life	14 years 6 months	14 years 4 months 24 days
Customer Relationships [Member]
Finite-Lived Intangible Assets [Line Items]
Intangible assets, gross	29,890	16,375
Less accumulated amortization	(3,498)	(1,730)
Intangible assets, net	26,392	14,645
Weighted average useful life	14 years 1 month 6 days	15 years 1 month 6 days
Product Technologies [Member]
Finite-Lived Intangible Assets [Line Items]
Intangible assets, gross	8,868	335
Less accumulated amortization	(421)	(116)
Intangible assets, net	8,447	219
Weighted average useful life	15 years 3 months 18 days	4 years 7 months 6 days
Trade Name [Member]
Finite-Lived Intangible Assets [Line Items]
Intangible assets, gross	2,237
Less accumulated amortization	(56)
Intangible assets, net	2,181
Weighted average useful life	20 years
Core Technologies [Member]
Finite-Lived Intangible Assets [Line Items]
Intangible assets, gross	1,505	1,505
Less accumulated amortization	(425)	(261)
Intangible assets, net	$ 1,080	$ 1,244
Weighted average useful life	9 years 3 months 18 days	9 years 3 months 18 days