CONSOLIDATED STATEMENTS OF COMPREHENSIVE LOSS - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Statement of Comprehensive Income [Abstract]
Net loss	$ (69,632)	$ (45,263)	$ (65,323)
Other comprehensive income (loss), net of taxes:
Pension adjustments	(1,060)	(92)	220
Derivative financial instruments	(318)	0	0
Gain on liquidation of non-US entity	0	0	50
Foreign currency translation	2,996	(17,068)	31,678
Total other comprehensive income (loss), net of taxes:	1,618	(17,160)	31,948
Total comprehensive loss, net of taxes	(68,014)	(62,423)	(33,375)
Comprehensive income attributable to noncontrolling interests	191	524	1,127
Comprehensive loss attributable to 3D Systems Corporation	$ (68,205)	$ (62,947)	$ (34,502)