Condensed Consolidated Statements of Operations and Comprehensive Loss (unaudited) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018
Revenue:
Total revenue	$ 19,364	$ 18,428	$ 66,868	$ 67,829
Costs and operating expenses:
Cost of sales	17,071	11,965	53,915	32,734
Research and development expenses	19,588	51,202	62,570	99,077
Selling, general, and administrative expenses	16,283	11,493	48,640	37,390
Total costs and operating expenses	52,942	74,660	165,125	169,201
Operating loss	(33,578)	(56,232)	(98,257)	(101,372)
Interest income	(650)	(654)	(1,408)	(1,314)
Interest expense	1,745	1,712	5,254	1,777
Loss before income tax expense (benefit)	(34,673)	(57,290)	(102,103)	(101,835)
Income tax expense (benefit)	114	(30)	1,019	(286)
Net loss	(34,787)	(57,260)	(103,122)	(101,549)
Less: net loss attributable to non-controlling interests	(29)	(11,090)	(1,100)	(11,222)
Net loss attributable to Athenex, Inc.	(34,758)	(46,170)	(102,022)	(90,327)
Unrealized gain (loss) on investment, net of income taxes	1	(37)	(79)	3
Foreign currency translation adjustment, net of income taxes	(310)	(554)	312	(477)
Comprehensive loss	$ (35,067)	$ (46,761)	$ (101,789)	$ (90,801)
Net loss per share attributable to Athenex, Inc. common stockholders, basic and diluted (See Note 13)	$ (0.45)	$ (0.70)	$ (1.41)	$ (1.42)
Weighted-average shares used in computing net loss per share attributable to Athenex, Inc. common stockholders, basic and diluted (See Note 13)	77,297,555	66,399,091	72,552,248	63,806,787
Product Sales, Net
Revenue:
Total revenue	$ 19,237	$ 13,309	$ 66,433	$ 37,385
License Fees and Consulting Revenue
Revenue:
Total revenue	115	5,096	325	30,278
Grant Revenue
Revenue:
Total revenue	$ 12	$ 23	$ 110	$ 166