Consolidated Statements of Operations and Comprehensive Loss - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017
Revenue:
Total revenue	$ 18,428	$ 13,994	$ 67,829	$ 23,170
Costs and operating expenses:
Cost of sales	11,965	8,082	32,734	15,058
Research and development expenses (See Note 6)	51,204	11,944	99,077	55,949
Selling, general, and administrative expenses	11,493	10,364	37,390	33,795
Total costs and operating expenses	74,662	30,390	169,201	104,802
Operating loss	(56,234)	(16,396)	(101,372)	(81,632)
Interest expense	1,058	353	463	6,010
Loss on derivative liability		6,548		15,411
Loss before income tax benefit	(57,292)	(23,297)	(101,835)	(103,053)
Income tax (benefit) expense	(30)	11	(286)	(52)
Net loss	(57,262)	(23,308)	(101,549)	(103,001)
Less: net loss attributable to non-controlling interests	(11,091)	(34)	(11,222)	(114)
Net loss attributable to Athenex, Inc.	(46,171)	(23,274)	(90,327)	(102,887)
Unrealized (loss) gain on investment, net of income taxes	(37)	4	3	(30)
Foreign currency translation adjustment, net of income taxes	(554)	242	(477)	922
Comprehensive loss	$ (46,762)	$ (23,028)	$ (90,801)	$ (101,995)
Net loss per share attributable to Athenex, Inc. common stockholders, basic and diluted (See Note 10)	$ (0.70)	$ (0.41)	$ (1.42)	$ (2.18)
Weighted-average shares used in computing net loss per share attributable to Athenex, Inc. common stockholders, basic and diluted (See Note 10)	66,399,091	57,134,889	63,806,787	47,238,452
Product Sales, Net
Revenue:
Total revenue	$ 13,309	$ 13,662	$ 37,385	$ 21,978
License Fees and Consulting Revenue
Revenue:
Total revenue	5,096	60	30,278	756
Grant Revenue
Revenue:
Total revenue	$ 23	$ 272	$ 166	$ 436