Acquisitions (Narrative) (Details) (USD $)	3 Months Ended	9 Months Ended
	Sep. 30, 2011	Sep. 30, 2011
Business Acquisition [Line Items]
Excess consideration recorded as goodwill	$ 50,598,000	$ 50,598,000
Goodwill deductible for tax purposes	5,241,000	5,241,000
Legal and consulting fees	156,000	770,000
Additional costs associated with inventory	2,467,000	2,467,000
Customer Relationships [Member]
Business Acquisition [Line Items]
Fair value of acquired intangible assets	5,970,000	5,970,000
Intangible assets useful life, years		16
Non-Compete Agreements [Member]
Business Acquisition [Line Items]
Fair value of acquired intangible assets	201,000	201,000
Intangible assets useful life, years		4
Backlog [Member]
Business Acquisition [Line Items]
Fair value of acquired intangible assets	1,200,000	1,200,000
Intangible assets useful life, years		1.5
Trademarks [Member]
Business Acquisition [Line Items]
Fair value of acquired intangible assets, indefinite useful life	11,470,000	11,470,000
Technology And Patents [Member]
Business Acquisition [Line Items]
Fair value of acquired intangible assets	16,560,000	16,560,000
Intangible assets useful life, years		15
Award Metals [Member]
Business Acquisition [Line Items]
Aggregate purchase consideration for the acquisition	13,369,000	13,369,000
Payment for aggregate purchase consideration	1,791,000	1,791,000
Excess consideration recorded as goodwill	4,328,000	4,328,000
Fair value of acquired intangible assets	2,101,000	2,101,000
D.S. Brown [Member]
Business Acquisition [Line Items]
Aggregate purchase consideration for the acquisition	97,643,000	97,643,000
Excess consideration recorded as goodwill	46,270,000	46,270,000
Fair value of acquired intangible assets	$ 33,300,000	$ 33,300,000