Business Segment, Geographic, and Concentration Risk Information - Summary of Revenue by Segments (Detail) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017
Total revenue:
Total consolidated revenue	$ 18,428	$ 13,994	$ 67,829	$ 23,170
Operating Segments
Total revenue:
Total consolidated revenue	19,524	16,184	71,529	29,889
Operating Segments | Oncology Innovation Platform
Total revenue:
Total consolidated revenue	5,117	205	30,532	1,208
Operating Segments | Global Supply Chain Platform
Total revenue:
Total consolidated revenue	7,092	8,601	17,991	19,407
Operating Segments | Commercial Platform
Total revenue:
Total consolidated revenue	7,315	7,378	23,006	9,274
Intersegment Eliminations
Total revenue:
Total consolidated revenue	$ (1,096)	$ (2,190)	$ (3,700)	$ (6,719)