Accrued Liabilities (Tables)

9 Months Ended

Sep. 30, 2018

Payables and Accruals [Abstract]

Components of Accrued Liabilities

Accrued liabilities consist of the following:

	September 30, 2018		December 31, 2017
	(in thousands)
Accrued clinical costs	$	3,084	$	2,495
Accrued employee compensation and related costs	5,712		7,755
Accrued professional fees	4,214		4,118
Accrued sales allowances	14,909		13,471
Accrued royalties	3,863		3,588
Accrued restructuring costs	2,151		—
Other accrued liabilities	9,911		10,411
Total	$	43,844	$	41,838