CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Revenue:
Total revenue	$ 687,660	$ 646,069	$ 632,965
Cost of sales:
Total cost of sales	363,266	341,230	323,214
Gross profit	324,394	304,839	309,751
Operating expenses:
Selling, general and administrative	272,287	264,185	259,776
Research and development	95,298	94,627	88,395
Total operating expenses	367,585	358,812	348,171
Loss from operations	(43,191)	(53,973)	(38,420)
Interest and other expense, net	(37)	(3,548)	(1,392)
Loss before income taxes	(43,228)	(57,521)	(39,812)
Provision (benefit) for income taxes	2,035	7,802	(547)
Net loss	(45,263)	(65,323)	(39,265)
Less: net income (loss) attributable to noncontrolling interests	242	868	(846)
Net loss attributable to 3D Systems Corporation	$ (45,505)	$ (66,191)	$ (38,419)
Net loss per share available to 3D Systems Corporation common stockholders — basic and diluted (in usd per share)	$ (0.41)	$ (0.59)	$ (0.35)
Products
Revenue:
Total revenue	$ 429,215	$ 391,596	$ 394,850
Cost of sales:
Total cost of sales	229,793	216,446	210,822
Services
Revenue:
Total revenue	258,445	254,473	238,115
Cost of sales:
Total cost of sales	$ 133,473	$ 124,784	$ 112,392