Concentration of credit risk (Tables)

9 Months Ended

Sep. 30, 2018

Concentration of credit risk

Schedule of concentration of credit risk related to collaborative partners

The concentration of credit risk related to our collaborative partners is as follows:

	Percentage of Total				Percentage of Total
	Milestone Revenues for the				Milestone Revenues for the
	Three Months Ended				Nine Months Ended
	September 30,				September 30,
	2018		2017		2018		2017
Collaboration Partner A	—	%	—	%	—	%	24	%
Collaboration Partner B	100	%	100	%	100	%	76	%

Schedule of concentration of credit risk related to specialty pharmacy customers

The concentration of credit risk related to our JAKAFI product revenues is as follows:

	Percentage of Total Net				Percentage of Total Net
	Product Revenues for the				Product Revenues for the
	Three Months Ended				Nine Months Ended
	September 30,				September 30,
	2018		2017		2018		2017
Customer A	19	%	24	%	20	%	25	%
Customer B	12	%	16	%	13	%	16	%
Customer C	16	%	14	%	15	%	13	%
Customer D	12	%	8	%	11	%	8	%