Revenue Recognition (Tables)

6 Months Ended

Jul. 02, 2021

Revenue Recognition [Abstract]

Summary 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
	July 2, 2021			July 3, 2020			July 2, 2021			July 3, 2020
Engineering & Other Scientific		62	%		60	%		61	%		63	%
Environmental and Health		17	%		21	%		18	%		20	%
Total time and materials revenues		79	%		81	%		79	%		83	%

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

	Three Months Ended						Six Months Ended
	July 2, 2021			July 3, 2020			July 2, 2021			July 3, 2020
Engineering & Other Scientific		20	%		18	%		20	%		16	%
Environmental and Health		1	%		1	%		1	%		1	%
Total fixed price revenues		21	%		19	%		21	%		17	%