Collaborations (Tables)

9 Months Ended

Sep. 30, 2019

Organization Consolidation And Presentation Of Financial Statements [Abstract]

Summary of Changes in Contract Liabilities

The following table presents changes in the Company’s contract liabilities during the nine months ended September 30, 2019 and 2018 (in thousands):

	Balance at Beginning of Period		Additions		Deductions			Balance at End of Period
Nine Months Ended September 30, 2019
Contract liabilities:
Deferred revenue	$	55,932	$	3,000	$	(23,788	)	$	35,144
	Balance at Beginning of Period		Additions		Deductions			Balance at End of Period
Nine Months Ended September 30, 2018
Contract liabilities:
Deferred revenue	$	59,868	$	3,000	$	(16,604	)	$	46,264

Summary of Revenues Recognized Resulting From Changes in Contract Liability Balance

During the nine months ended September 30, 2019 and 2018, the Company recognized the following revenues as a result of changes in the contract liability balance (in thousands):

Revenue recognized in the period from:	Nine Months Ended September 30, 2019		Nine Months Ended September 30, 2018
Amounts included in the contract liability at the beginning of the period	$	23,788	$	16,604