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Related Party Transactions (Details) ₩ in Billions			1 Months Ended		12 Months Ended
	Aug. 27, 2020 USD ($) shares	Aug. 27, 2020 KRW (₩) shares	Nov. 30, 2016 USD ($)	Mar. 31, 2016 USD ($)	Dec. 31, 2020 USD ($) shares	Dec. 31, 2019 USD ($)	Dec. 31, 2018 USD ($)	Feb. 20, 2020 shares
Related Party Transaction [Line Items]
Proceeds from issuance of common stock					$ 454,486,400	$ 9,089,010	$ 29,227,776
Awarded option amount					6,000,000.0
GeneOne (affiliated entity)
Related Party Transaction [Line Items]
Proceeds from issuance of common stock	$ 40,100,000	₩ 47.4
Accounts receivable						128,000
Due to related parties						511,000
GeneOne (affiliated entity)
Related Party Transaction [Line Items]
Number of shares owned (shares) | shares	1,644,155	1,644,155
Proceeds from issuance of common stock	$ 40,100,000	₩ 47.4
Revenue from related parties					125,000	127,000	342,000
Operating expenses related to affiliated entity					$ 4,700,000	2,500,000	$ 7,000,000.0
PLS (affiliated entity)
Related Party Transaction [Line Items]
Number of shares owned (shares) | shares					597,808
Accounts receivable					$ 67,000	589,000
Revenue from related parties					$ 1,400,000	111,000
Percentage of ownership					19.70%
PLS (affiliated entity) | Available-for-sale Securities
Related Party Transaction [Line Items]
Investment owned, additional shares acquired (in shares) | shares								202,050
The Wistar Institute
Related Party Transaction [Line Items]
Accounts receivable					$ 425,000	616,000
Due to related parties					643,000	219,000
Operating expenses related to affiliated entity					2,300,000	1,500,000
Expenses to reimburse				$ 3,100,000
Term				5 years
Proceeds from sub-grant			$ 6,100,000
Awarded amount					10,700,000
Grant proceeds received					1,900,000	$ 2,200,000
Deferred grant funding from affiliate					$ 96,000

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