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Accrued and Other Liabilities (Schedule of Recognized Warranty Revenue and Incurred Warranty Costs) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Warrant Obligation [Roll Forward]
Beginning Balance	$ 6,192	$ 7,660	$ 10,202	$ 9,051
Additional Accrual/ Revenue Deferred	8,124	9,347	13,623
Warranty Revenue Recognized	(9,592)	(11,889)	(12,472)
Ending Balance	$ 6,192	$ 7,660	$ 10,202	$ 9,051

X

- Definition

Deferred warranty revenue.

+ References

No definition available.

+ Details

Name:	ddd_DeferredWarrantyRevenue
Namespace Prefix:	ddd_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

X

- Definition

Warranty revenue deferred.

+ References

No definition available.

+ Details

Name:	ddd_WarrantyRevenueDeferred
Namespace Prefix:	ddd_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

X

- Definition

Warranty revenue recognized.

+ References

No definition available.

+ Details

Name:	ddd_WarrantyRevenueRecognized
Namespace Prefix:	ddd_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

X

- Definition

A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.

+ References

No definition available.

+ Details

Name:	us-gaap_MovementInStandardAndExtendedProductWarrantyIncreaseDecreaseRollForward
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration