Revenue Recognition (Tables)

6 Months Ended

Jun. 30, 2023

Revenue Recognition [Abstract]

Summary of Percent of Revenues

The following table discloses the percentage of the Company’s revenue generated from time and materials contracts:

	Three Months Ended						Six Months Ended
	June 30, 2023			July 1, 2022			June 30, 2023			July 1, 2022
Engineering & Other Scientific		64	%		64	%		64	%		63	%
Environmental and Health		15	%		15	%		15	%		16	%
Total time and materials revenues		79	%		79	%		79	%		79	%

The following table discloses the percentage of the Company’s revenue generated from fixed price contracts:

	Three Months Ended						Six Months Ended
	June 30, 2023			July 1, 2022			June 30, 2023			July 1, 2022
Engineering & Other Scientific		19	%		20	%		19	%		20	%
Environmental and Health		2	%		1	%		2	%		1	%
Total fixed price revenues		21	%		21	%		21	%		21	%