Research Collaboration and License Agreements (Tables)

12 Months Ended

Dec. 31, 2019

Research Collaboration And License Agreements [Abstract]

Summary of Contract Liabilities

Information about contract liabilities, included as deferred revenue in the accompanying Consolidated Balance Sheets, is as follows:

	2019		2018
Contract liabilities	$	58,407,408	$	53,550,671
Revenues recognized in the period from:
Amounts included in deferred revenue in previous periods		14,335,188		13,553,136

Transaction Price Allocated to Performance Obligations

The aggregate amount of the transaction price allocated to performance obligations that are unsatisfied as of December 31, 2019 was $58.4 million, which is expected to be recognized as follows (in millions):

2020	$	20.0
2021		19.7
2022		13.9
2023		4.8
	$	58.4