CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE LOSS - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Statement of Comprehensive Income [Abstract]
Net loss	$ (72,889)	$ (16,762)	$ (129,764)	$ (64,972)
Other comprehensive income (loss), net of taxes:
Pension adjustments	(47)	91	130	207
Derivative financial instrument loss	11	(798)	(413)	(798)
Foreign currency translation	11,214	(8,101)	8,079	(6,854)
Total other comprehensive income (loss), net of taxes	11,178	(8,808)	7,796	(7,445)
Total comprehensive loss, net of taxes	(61,711)	(25,570)	(121,968)	(72,417)
Comprehensive income attributable to noncontrolling interests	0	60	0	128
Comprehensive loss attributable to 3D Systems Corporation	$ (61,711)	$ (25,630)	$ (121,968)	$ (72,545)