Condensed Consolidated Balance Sheets - USD ($) $ in Thousands	Sep. 30, 2016	Jan. 01, 2016
Current assets:
Cash and cash equivalents	$ 98,425	$ 125,751
Short-term investments	51,993	45,842
Accounts receivable, net of allowance for contract losses and doubtful accounts of $3,805 and $2,792 at September 30, 2016 and January 1, 2016, respectively	94,292	88,577
Prepaid expenses and other assets	12,596	12,616
Total current assets	257,306	272,786
Property, equipment and leasehold improvements, net	37,457	28,485
Goodwill	8,607	8,607
Deferred income taxes	40,751	39,456
Deferred compensation plan assets	40,365	36,522
Other assets	929	1,651
Total assets	385,415	387,507
Current liabilities:
Accounts payable and accrued liabilities	9,709	10,580
Accrued payroll and employee benefits	53,866	62,092
Deferred revenues	5,590	7,802
Total current liabilities	69,165	80,474
Other liabilities	2,102	1,913
Deferred compensation	45,662	40,322
Deferred rent	1,664	1,994
Total liabilities	118,593	124,703
Stockholders’ equity:
Common stock, $0.001 par value; 80,000 shares authorized; 32,853 shares issued at September 30, 2016 and January 1, 2016	33	33
Additional paid-in capital	193,105	179,816
Accumulated other comprehensive income (loss)
Investment securities, available-for-sale	0	(65)
Foreign currency translation adjustments	(2,436)	(1,740)
Accumulated other comprehensive income (loss)	(2,436)	(1,805)
Retained earnings	285,616	269,259
Treasury stock, at cost; 7,261 and 7,133 shares held at September 30, 2016 and January 1, 2016, respectively	(209,496)	(184,499)
Total stockholders’ equity	266,822	262,804
Total liabilities and stockholders’ equity	$ 385,415	$ 387,507