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Subsequent Events	6 Months Ended
	Jun. 30, 2013
Subsequent Events [Abstract]
Subsequent Events	(17)  Subsequent Event In July 2013, the Company acquired approximately 81% of the shares of Phenix Systems, a leading global provider of direct metal selective laser sintering 3D printers, based in Riom, France. Phenix Systems is listed on the French stock market (Alternext). Future revenue from this acquisition will be reported in printers and other products revenue and services revenue. The Phenix acquisition is not significant to the Company’s operating results. See Note 2.

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The entire disclosure for significant events or transactions that occurred after the balance sheet date through the date the financial statements were issued or the date the financial statements were available to be issued. Examples include: the sale of a capital stock issue, purchase of a business, settlement of litigation, catastrophic loss, significant foreign exchange rate changes, loans to insiders or affiliates, and transactions not in the ordinary course of business.

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