Consolidated Statements of Operations - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Revenues:
Total revenues	$ 116,640	$ 40,130	$ 22,546
Operating expenses:
Cost of sales	44,378	18,081	415
Research and development	124,627	216,205	203,701
Selling, general and administrative	218,919	151,164	91,109
Total operating expenses	387,924	385,450	295,225
Loss from operations	(271,284)	(345,320)	(272,679)
Interest and other income (expense), net	9,698	13,516	(1,338)
Interest expense	(31,290)	(18,740)	(11,603)
Net loss	(292,876)	(350,544)	(285,620)
Net loss (income) attributable to noncontrolling interest	2,213	321	(470)
Net loss attributable to Portola	$ (290,663)	$ (350,223)	$ (286,090)
Net loss per share attributable to Portola common stockholders:
Basic and diluted (in dollars per share)	$ (4.06)	$ (5.31)	$ (4.81)
Shares used to compute net loss per share attributable to Portola common stockholders:
Basic and diluted (in shares)	71,555,220	66,017,330	59,508,156
Product revenue, net
Revenues:
Total revenues	$ 111,644	$ 24,117	$ 0
Collaboration and license revenue
Revenues:
Total revenues	$ 4,996	$ 16,013	$ 22,546