Condensed Consolidated Balance Sheets - USD ($) $ in Thousands	Oct. 02, 2020	Jan. 03, 2020
Current assets:
Cash and cash equivalents	$ 187,632	$ 176,436
Short-term investments	20,086	55,165
Accounts receivable, net of allowance for contract losses and doubtful accounts of $5,834 and $4,295 at October 2, 2020 and January 3, 2020, respectively	109,964	120,138
Prepaid expenses and other current assets	10,967	12,305
Total current assets	328,649	364,044
Property, equipment and leasehold improvements, net	60,395	61,587
Operating lease right-of-use assets	20,085	23,003
Goodwill	8,607	8,607
Deferred income taxes	39,383	36,821
Deferred compensation plan assets	76,204	68,400
Other assets	1,343	949
Total assets	534,666	563,411
Current liabilities:
Accounts payable and accrued liabilities	18,552	18,583
Accrued payroll and employee benefits	62,740	86,723
Deferred revenues	9,390	12,710
Operating lease liabilities	5,689	5,944
Total current liabilities	96,371	123,960
Other liabilities	3,251	2,669
Deferred compensation plan liabilities	76,683	68,373
Operating lease liabilities	15,164	18,158
Total liabilities	191,469	213,160
Stockholders’ equity:
Common stock, $0.001 par value; 120,000 shares authorized; 65,707 at October 2, 2020 and January 3, 2020	66	66
Additional paid-in capital	261,713	244,935
Accumulated other comprehensive income (loss)
Investment securities, available-for-sale	130	302
Foreign currency translation adjustments	(3,114)	(2,062)
Accumulated other comprehensive income (loss)	(2,984)	(1,760)
Retained earnings	409,995	384,668
Treasury stock, at cost; 14,077 and 13,951 shares held at October 2, 2020 and January 3, 2020, respectively	(325,593)	(277,658)
Total stockholders’ equity	343,197	350,251
Total liabilities and stockholders’ equity	$ 534,666	$ 563,411