Accrued Expenses (Tables)

3 Months Ended

Mar. 31, 2019

Payables And Accruals [Abstract]

Schedule of Accrued Expenses

Accrued expenses consisted of the following (in thousands):

	As of
	March 31,		December 31,
	2019		2018
Employee compensation and benefits	$	20,373	$	31,344
Project related reimbursable expenses		56,134		51,109
Other		5,740		5,040
Total accrued expenses	$	82,247	$	87,493