Condensed Consolidated Statements of Stockholders' Equity (Unaudited) - USD ($) shares in Thousands, $ in Thousands	Total	Common Stock	Additional Paid-In Capital	Accumulated Deficit	Accumulated Other Comprehensive Loss
Beginning balance (in shares) at Dec. 31, 2023		133,619
Beginning balance at Dec. 31, 2023	$ 426,753	$ 134	$ 1,577,519	$ (1,106,650)	$ (44,250)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Shares issued, vested and canceled under equity incentive plans (in shares)		534
Shares withheld related to net-share settlement of equity awards (in shares)		(350)
Shares withheld related to net-share settlement of equity awards	(1,710)		(1,710)
Stock-based compensation expense	6,591		6,591
Net (loss) income attributable to 3D Systems Corp.	(16,001)			(16,001)
Pension plan adjustment	(7)				(7)
Redeemable non-controlling interest redemption value in excess of carrying value	(75)		(75)
Foreign currency translation adjustment	(7,186)				(7,186)
Ending balance (in shares) at Mar. 31, 2024		133,803
Ending balance at Mar. 31, 2024	408,365	$ 134	1,582,325	(1,122,651)	(51,443)
Beginning balance (in shares) at Dec. 31, 2023		133,619
Beginning balance at Dec. 31, 2023	426,753	$ 134	1,577,519	(1,106,650)	(44,250)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net (loss) income attributable to 3D Systems Corp.	(221,886)
Redeemable non-controlling interest redemption value in excess of carrying value	(336)
Ending balance (in shares) at Sep. 30, 2024		134,826
Ending balance at Sep. 30, 2024	218,032	$ 135	1,588,911	(1,328,536)	(42,478)
Beginning balance (in shares) at Mar. 31, 2024		133,803
Beginning balance at Mar. 31, 2024	408,365	$ 134	1,582,325	(1,122,651)	(51,443)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Shares issued, vested and canceled under equity incentive plans (in shares)		8
Shares withheld related to net-share settlement of equity awards (in shares)		(224)
Shares withheld related to net-share settlement of equity awards	(793)		(793)
Stock-based compensation expense	2,711		2,711
Net (loss) income attributable to 3D Systems Corp.	(27,258)			(27,258)
Pension plan adjustment	(2)				(2)
Redeemable non-controlling interest redemption value in excess of carrying value	(98)		(98)
Foreign currency translation adjustment	(1,196)				(1,196)
Ending balance (in shares) at Jun. 30, 2024		133,587
Ending balance at Jun. 30, 2024	381,729	$ 134	1,584,145	(1,149,909)	(52,641)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Shares issued, vested and canceled under equity incentive plans (in shares)		1,248
Shares issued, vested and canceled under equity incentive plans	1	$ 1
Shares withheld related to net-share settlement of equity awards (in shares)		(9)
Shares withheld related to net-share settlement of equity awards	(23)		(23)
Stock-based compensation expense	4,952		4,952
Net (loss) income attributable to 3D Systems Corp.	(178,627)			(178,627)
Pension plan adjustment	13				13
Redeemable non-controlling interest redemption value in excess of carrying value	(163)		(163)
Foreign currency translation adjustment	10,150		0		10,150
Ending balance (in shares) at Sep. 30, 2024		134,826
Ending balance at Sep. 30, 2024	218,032	$ 135	1,588,911	(1,328,536)	(42,478)
Beginning balance (in shares) at Dec. 31, 2024		135,510
Beginning balance at Dec. 31, 2024	176,193	$ 136	1,593,366	(1,362,243)	(55,066)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Shares canceled under equity incentive plans (in shares)		(53)
Shares issued, vested and canceled under equity incentive plans	(1)	$ (1)
Shares withheld related to net-share settlement of equity awards (in shares)		(96)
Shares withheld related to net-share settlement of equity awards	(285)		(285)
Stock-based compensation expense	3,666		3,666
Net (loss) income attributable to 3D Systems Corp.	(36,986)			(36,986)
Pension plan adjustment	6				6
Foreign currency translation adjustment	3,046				3,046
Ending balance (in shares) at Mar. 31, 2025		135,361
Ending balance at Mar. 31, 2025	145,639	$ 135	1,596,747	(1,399,229)	(52,014)
Beginning balance (in shares) at Dec. 31, 2024		135,510
Beginning balance at Dec. 31, 2024	176,193	$ 136	1,593,366	(1,362,243)	(55,066)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net (loss) income attributable to 3D Systems Corp.	49,397
Redeemable non-controlling interest redemption value in excess of carrying value	0
Ending balance (in shares) at Sep. 30, 2025		128,245
Ending balance at Sep. 30, 2025	221,100	$ 128	1,579,809	(1,312,846)	(45,991)
Beginning balance (in shares) at Mar. 31, 2025		135,361
Beginning balance at Mar. 31, 2025	145,639	$ 135	1,596,747	(1,399,229)	(52,014)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Shares issued, vested and canceled under equity incentive plans (in shares)		784
Shares issued, vested and canceled under equity incentive plans	1	$ 1
Shares withheld related to net-share settlement of equity awards (in shares)		(158)
Shares withheld related to net-share settlement of equity awards	(320)		(320)
Stock-based compensation expense	(2,507)		(2,507)
Net (loss) income attributable to 3D Systems Corp.	104,436			104,436
Pension plan adjustment	14				14
Repurchase and retirements of common stock (in shares)		(8,000)
Repurchase and retirements of common stock	(14,960)	$ (8)	(14,952)
Foreign currency translation adjustment	8,943		(132)		9,075
Ending balance (in shares) at Jun. 30, 2025		127,987
Ending balance at Jun. 30, 2025	241,246	$ 128	1,578,836	(1,294,793)	(42,925)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Shares issued, vested and canceled under equity incentive plans (in shares)		365
Shares withheld related to net-share settlement of equity awards (in shares)		(107)
Shares withheld related to net-share settlement of equity awards	(225)		(225)
Stock-based compensation expense	1,198		1,198
Net (loss) income attributable to 3D Systems Corp.	(18,053)			(18,053)
Redeemable non-controlling interest redemption value in excess of carrying value	0
Foreign currency translation adjustment	(3,066)				(3,066)
Ending balance (in shares) at Sep. 30, 2025		128,245
Ending balance at Sep. 30, 2025	$ 221,100	$ 128	$ 1,579,809	$ (1,312,846)	$ (45,991)