Collaborations (Tables)

12 Months Ended

Dec. 31, 2019

Organization Consolidation And Presentation Of Financial Statements [Abstract]

Summary of Changes in Accounts Receivable and Contract Liabilities

The following table presents changes in the Company’s accounts receivable and contract liabilities during the years ended December 31, 2019 and 2018 (in thousands):

	Balance at Beginning of Period		Additions		Deductions			Balance at End of Period
Year Ended December 31, 2019
Accounts receivable	$	7,547	$	15,999	$	(18,926	)	$	4,620
Contract liabilities:
Deferred revenue	$	55,932	$	4,000	$	(31,122	)	$	28,810
	Balance at Beginning of Period		Additions		Deductions			Balance at End of Period
Year Ended December 31, 2018
Accounts receivable	$	10,471	$	16,498	$	(19,422	)	$	7,547
Contract liabilities:
Deferred revenue	$	59,868	$	19,000	$	(22,936	)	$	55,932

Summary of Revenues Recognized Resulting From Changes in Contract Liability Balance

During the years ended December 31, 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:	Year Ended December 31, 2019		Year Ended December 31, 2018
Amounts included in the contract liability at the beginning of the period	$	27,122	$	22,936