Accrued Expenses (Tables)

12 Months Ended

Dec. 31, 2021

Payables and Accruals [Abstract]

Schedule of Accrued Expenses

Accrued expenses consisted of the following at December 31 (in thousands):

	2021		2020
Employee compensation and benefits	$	57,846	$	40,208
Project related reimbursable expenses		91,839		87,092
Other		9,601		7,067
Total accrued expenses	$	159,286	$	134,367