Segment Information (Tables)

12 Months Ended

Dec. 31, 2016

Segment Information

Schedule of total revenue by geographic region

	Year Ended December 31,
(In thousands)	2016		2015		2014
U.S.	$	33,179	$	16,981	$	4,231
Europe		15,211		21,354		7,456
Asia		254		2,902		—
Other		4		889		1
Total revenue	$	48,648	$	42,126	$	11,688

Schedule of total revenue from customers or collaboration partners who individually accounted for 10% or more of total revenue

(% of total revenue)	Year Ended December 31, 2016
Mylan		31	%
Takeda		31	%

(% of total revenue)	Year Ended December 31, 2015
Mylan		46	%
Trek Therapeutics		20	%

(% of total revenue)	Year Ended December 31, 2014
Clinigen		43	%
R-Pharm		19	%