REVENUE RECOGNITION (Tables)

12 Months Ended

Dec. 31, 2018

Revenue from Contract with Customer [Abstract]

Summary of Net Product Revenue

The following table summarizes net product revenues for the twelve months endedDecember 31, 2018, 2017 and 2016 (in thousands):

	Twelve Months Ended December 31,
	2018	2017	2016
Thiola	89,176	82,311	71,199
Bile acid products	75,070	72,626	62,392
Total net product revenue	164,246	154,937	133,591