Commitments And Contingencies (Summary Of Contingent Consideration Liability) (Details) (USD $)	9 Months Ended
	Sep. 30, 2013		Dec. 31, 2012	Sep. 30, 2012	Dec. 31, 2011
Business Acquisition, Contingent Consideration [Line Items]
Estimated Remaining Payments	$ 10,757,000
Fair Value of Estimated Remaining Payments	8,482,000		11,519,000	12,636,000	14,561,000
Schwintek Products [Member]
Business Acquisition, Contingent Consideration [Line Items]
Estimated Remaining Payments	6,478,000	[1]
Fair Value of Estimated Remaining Payments	4,998,000
Contingent consideration period after product first sold to customers	5 years
Level-UpTM Six-Point Leveling System [Member]
Business Acquisition, Contingent Consideration [Line Items]
Estimated Remaining Payments	4,020,000	[2]
Fair Value of Estimated Remaining Payments	3,258,000
Other Acquired Products [Member]
Business Acquisition, Contingent Consideration [Line Items]
Estimated Remaining Payments	259,000	[3]
Fair Value of Estimated Remaining Payments	226,000
Remaining maximum earn-out payments	3,100,000
Two Of Three Products [Member] | Schwintek Products [Member]
Business Acquisition, Contingent Consideration [Line Items]
Estimated Remaining Payments	3,400,000
Remaining maximum earn-out payments	$ 5,500,000

[1] The remaining contingent consideration for two of the three products expires in March 2014. Contingent consideration for the remaining product will cease five years after the product is first sold to customers. Two of the three products acquired have a combined remaining maximum contingent consideration of $5.5 million, of which the Company estimates $3.4 million will be paid. Other than expiration of the contingent consideration period, the remaining product has no maximum contingent consideration.

[2] Other than expiration of the contingent consideration period in February 2016, this product has no maximum contingent consideration.

[3] Contingent consideration expires at various dates through November 2025. Certain of these products have a combined remaining maximum contingent consideration of $3.1 million, while the remaining products have no maximum contingent consideration.