Condensed Consolidated Balance Sheets - USD ($) $ in Thousands	Sep. 29, 2023	Dec. 30, 2022
Current assets:
Cash and cash equivalents	$ 137,099	$ 161,458
Accounts receivable, net of allowance for contract losses and doubtful accounts of $6,400 and $6,193 at September 29, 2023 and December 30, 2022, respectively	181,754	170,114
Prepaid expenses and other current assets	24,463	17,585
Total current assets	343,316	349,157
Property, equipment and leasehold improvements, net of accumulated depreciation and amortization of $109,435 and $103,034 at September 29, 2023 and December 30, 2022, respectively	76,246	65,539
Operating lease right-of-use assets	24,302	18,007
Goodwill	8,607	8,607
Deferred income taxes	54,448	53,909
Deferred compensation plan assets	90,727	89,437
Other assets	4,816	2,006
Total assets	602,462	586,662
Current liabilities:
Accounts payable and accrued liabilities	19,640	29,115
Accrued payroll and employee benefits	93,828	105,822
Deferred revenues	10,489	18,834
Operating lease liabilities	5,700	5,258
Total current liabilities	129,657	159,029
Other liabilities	4,136	2,355
Deferred compensation plan liabilities	93,070	91,183
Operating lease liabilities	21,964	13,343
Total liabilities	248,827	265,910
Stockholders’ equity:
Common stock, $0.001 par value; 120,000 shares authorized; 65,707 shares issued at September 29, 2023 and December 30, 2022	66	66
Additional paid-in capital	320,152	301,002
Accumulated other comprehensive loss
Foreign currency translation adjustments	(3,775)	(3,587)
Retained earnings	566,518	528,810
Treasury stock, at cost; 15,040 and 15,064 shares held at September 29, 2023 and December 30, 2022, respectively	(529,326)	(505,539)
Total stockholders’ equity	353,635	320,752
Total liabilities and stockholders’ equity	$ 602,462	$ 586,662