Segment Information (Tables)

3 Months Ended

Mar. 31, 2018

Segment Reporting [Abstract]

Schedule of Net Product Sales from External Customers

The following table summarizes total net revenues from external customers by product and by geographic region, based on the location of the customer, for the three months ended March 31, 2018.

	U.S.		Brazil		Other Foreign Countries		Total
	(in thousands)
Lomitapide	$	8,624	$	—	$	4,766	$	13,390
Metreleptin	9,768		1,170		3,156		14,094
Total	$	18,392	$	1,170	$	7,922	$	27,484

The following table summarizes total net revenues from external customers by product and by geographic region, based on the location of the customer, for the three months ended March 31, 2017.

	U.S.		Brazil		Other Foreign Countries		Total
	(in thousands)
Lomitapide	$	10,876	$	1,640	$	3,508	$	16,024
Metreleptin	11,474		1,227		1,259		13,960
Total	$	22,350	$	2,867	$	4,767	$	29,984