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License Revenue with 3D Medicines, Inc. - Deferred Revenue (Details) - USD ($)	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Movement in Deferred Revenue [Roll Forward]
Beginning balance			$ 5,600,000
Additions			2,000,000
Revenue Recognized	$ (1,900,000)	$ 0	(7,600,000)	$ 0
Ending balance	$ 0		$ 0

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Contract With Customer, Liability, New Contract Revenue, Recognized

+ References

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- Definition

Amount of obligation to transfer good or service to customer for which consideration has been received or is receivable, classified as current.

+ References

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-Publisher FASB
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Amount of increase (decrease) in obligation to transfer good or service to customer for which consideration has been received or is receivable.

+ References

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-Publisher FASB
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-Topic 230
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A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.

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