Revenue Recognition (Tables)

6 Months Ended

Jun. 30, 2018

ASU 2014-09

Impact of Topic 606 Adoption on Financial Statements

Refer below for a summary of the amount by which each financial statement line item was affected by the impact of the cumulative adjustment:

	Impact of Topic 606 Adoption
	on the Balance Sheet
($ in thousands)	as of January 1, 2018
Description	As reported under Topic 606			Adjustments			Balances without adoption of Topic 606
Contract liability, current portion	$	622		$	(5,767	)	$	6,389
Contract liability, net of current portion	$	49,037		$	13,898		$	35,139
Accumulated deficit	$	(720,573	)	$	(8,131	)	$	(712,442	)

The amount by which each financial statement line item is affected in the current reporting period by ASC 606 as compared with the guidance that was in effect prior to adoption is disclosed below.

	Impact of Topic 606 Adoption
	on the Balance Sheet
($ in thousands)	as of June 30, 2018
Description	As reported under Topic 606			Adjustments			Balances without adoption of Topic 606
Contract liability, current portion	$	—		$	(6,389	)	$	6,389
Contract liability, net of current portion	$	49,513		$	17,569		$	31,944
Accumulated deficit	$	(748,624	)	$	11,180		$	(737,444	)

	Impact of Topic 606 Adoption
	on the Statement of Operations
($ in thousands)	for the Three Months Ended June 30, 2018
Description	As reported under Topic 606			Adjustments			Balances without adoption of Topic 606
Collaboration revenue	$	—		$	(1,597	)	$	1,597
Net loss	$	(12,031	)	$	(1,597	)	$	(10,434	)
Basic and diluted net loss per share	$	(0.12	)	$	(0.01	)	$	(0.11	)
	Impact of Topic 606 Adoption
	on the Statement of Operations
($ in thousands)	for the Six Months Ended June 30, 2018
Description	As reported under Topic 606			Adjustments			Balances without adoption of Topic 606
Collaboration revenue	$	146		$	(3,048	)	$	3,194
Net loss	$	(28,051	)	$	(3,048	)	$	(25,003	)
Basic and diluted net loss per share	$	(0.27	)	$	(0.02	)	$	(0.25	)
	Impact of Topic 606 Adoption
	on the Statement of Cash Flows
($ in thousands)	for the Six Months Ended June 30, 2018
Description	As reported under Topic 606			Adjustments			Balances without adoption of Topic 606
Net loss	$	(28,051	)	$	(3,048	)	$	(25,003	)
Changes in contract liability	$	—		$	3,194		$	(3,194	)