Consolidated Balance Sheets (Parenthetical) - USD ($) $ in Thousands	Sep. 29, 2023	Dec. 30, 2022
Statement of Financial Position [Abstract]
Accounts receivable and unbilled revenue, allowance	$ 973	$ 856
Preferred stock, par value	$ 0.001	$ 0.001
Preferred stock, shares authorized	1,250,000	1,250,000
Preferred stock, shares issued	0	0
Preferred stock, shares outstanding	0	0
Common stock, par value	$ 0.001	$ 0.001
Common stock, shares authorized	125,000,000	125,000,000
Common stock, shares issued	60,537,559	60,147,720
Treasury stock, at cost, shares	33,314,926	33,277,459