Consolidated Balance Sheets - USD ($) $ in Thousands	Dec. 30, 2022	Dec. 31, 2021
Current assets:
Cash and cash equivalents	$ 161,458	$ 297,687
Accounts receivable, net of allowance for contract losses and doubtful accounts of $6,193 and $4,423, respectively	170,114	139,861
Prepaid expenses and other current assets	17,585	15,214
Total current assets	349,157	452,762
Property, equipment and leasehold improvements, net	65,539	59,971
Operating lease right-of-use assets	18,007	14,370
Goodwill	8,607	8,607
Deferred income taxes	53,909	46,546
Deferred compensation plan assets	89,437	99,962
Other assets	2,006	1,521
Total assets	586,662	683,739
Current liabilities:
Accounts payable and accrued liabilities	29,115	24,504
Accrued payroll and employee benefits	105,822	103,552
Deferred revenues	18,834	19,762
Operating lease liabilities	5,258	5,164
Total current liabilities	159,029	152,982
Other liabilities	2,355	2,886
Deferred compensation plan liabilities	91,183	100,999
Operating lease liabilities	13,343	9,807
Total liabilities	265,910	266,674
Commitments and contingencies (Note 13)
Stockholders’ equity:
Preferred stock, $0.001 par value; 2,000 shares authorized; no shares outstanding
Common stock, $0.001 par value; 120,000 shares authorized; 65,707 shares issued	66	66
Additional paid-in capital	301,002	281,419
Accumulated other comprehensive income/(loss)
Foreign currency translation adjustments	(3,587)	(1,983)
Retained earnings	528,810	478,370
Treasury stock, at cost: 15,064 and 13,591 shares held, respectively	(505,539)	(340,807)
Total stockholders’ equity	320,752	417,065
Total liabilities and stockholders’ equity	$ 586,662	$ 683,739