Accrued Expenses (Tables)

3 Months Ended

Mar. 31, 2019

Payables and Accruals [Abstract]

Accrued Expenses

Accrued expenses include the following (in thousands):

	March 31, 2019		December 31, 2018
Legal costs	$	14,252	$	10,056
Settlement costs	9,573		8,673
Pricing adjustment settlement with Veterans Affairs	6,894		6,894
Estimated returns	2,028		2,325
External commissions	1,060		1,233
Accrued clinical trials	627		962
Other	1,303		1,699
Total	$	35,737	$	31,842