Accrued Liabilities (Tables)

3 Months Ended

Mar. 31, 2020

Payables and Accruals [Abstract]

Schedule of accrued expenses

Accrued liabilities consist of the following:

(in thousands)	March 31, 2020		December 31, 2019
Compensation	$	10,089	$	13,167
Right of use liabilities - operating leases	5,484		5,187
Professional fees	3,298		4,128
Contract liabilities	1,524		1,584
Non-income taxes	665		427
Interest	—		569
Operating costs	757		637
Other	1,562		1,619
Total	$	23,379	$	27,318