Summary of Significant Accounting Policies (Tables)

9 Months Ended

Sep. 30, 2018

Summary Of Significant Accounting Policies [Line Items]

Summary of Changes in Contract Assets and Liabilities

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

	Balance at		Balance at
	Beginning of		End of
Nine Months Ended September 30, 2018	Period		Period
Contract liabilities:
Deferred revenue	$	29,017	$	—
Deferred revenue, less current portion		2,028		—

ASC 2014-09

Summary Of Significant Accounting Policies [Line Items]

Summary of Impact of Adopting ASC 606 on Unaudited Condensed Statement of Operations

The following table summarizes the impact of adopting ASC 606 on select unaudited condensed statement of operations line items for the nine months ended September 30, 2018 (in thousands, except per share data):

						Balances
						Without the
						Adoption of
Nine Months Ended September 30, 2018	As Reported			Adjustments		ASC 606
Collaboration revenue	$	22,254		$	8,791	$	31,045
Total revenue		22,254			8,791		31,045
Loss from operations		(37,057	)		8,791		(28,266	)
Net loss		(35,130	)		8,791		(26,339	)

ASC 2016-18

Summary Of Significant Accounting Policies [Line Items]

Summary of Impact of Adopting ASC on Unaudited Condensed Statement of Cash Flows

The following table summarizes the impact of adopting ASC 230 on select unaudited condensed statement of cash flows line items (in thousands) for the nine months ended September 30, 2017:

						Balances
						With the
	As Originally					Adoption of
	Reported			Adjustments		ASC 230
Change in restricted cash	$	(394	)	$	394	$	—
Net cash provided by (used in) investing activities		(117,484	)		394		(117,090	)
Net increase in cash, cash equivalents and restricted cash*		28,810			394		29,204
Cash, cash equivalents and restricted cash at beginning of period*		10,601			46		10,647
Cash, cash equivalents and restricted cash at end of period*		39,411			440		39,851

* For the nine months ended September 30, 2017, this line item, as originally reported, excluded restricted cash.