Segment Information (Tables)

9 Months Ended

Sep. 30, 2019

Segment Reporting [Abstract]

Summary of Revenue by Major Customers

The following table summarizes revenues from each of our customers who individually accounted for 10% or more of our total revenues (as a percentage of total revenues):

	Three Months Ended				Nine Months Ended
	September 30,				September 30,
	2019		2018		2019		2018
AmerisourceBergen Corp.	21	%	20	%	21	%	20	%
Cardinal Health, Inc.	21	%	20	%	21	%	20	%
McKesson Corp.	23	%	22	%	21	%	21	%