Condensed Consolidated Statements of Operations (USD $) In Thousands, except Per Share data	3 Months Ended		6 Months Ended
	Jun. 30, 2011	Jun. 30, 2010	Jun. 30, 2011	Jun. 30, 2010
Condensed Consolidated Statements of Operations
Net service revenues	$ 937,966	$ 769,090	$ 1,818,835	$ 1,506,263
Direct costs of services, consisting of payroll, payroll taxes, insurance costs and reimbursable expenses	565,678	479,232	1,108,458	948,277
Gross margin	372,288	289,858	710,377	557,986
Selling, general and administrative expenses	311,202	267,519	604,888	523,187
Amortization of intangible assets	40	46	79	315
Interest income, net	(238)	(94)	(450)	(168)
Income before income taxes	61,284	22,387	105,860	34,652
Provision for income taxes	24,859	10,206	42,730	13,996
Net income	36,425	12,181	63,130	20,656
Net income available to common stockholders-diluted	$ 35,890	$ 11,660	$ 62,194	$ 19,286
Net income per share (Note J):
Basic	$ 0.25	$ 0.08	$ 0.44	$ 0.13
Diluted	$ 0.25	$ 0.08	$ 0.43	$ 0.13
Shares:
Basic	141,286	143,100	141,966	143,667
Diluted	142,585	144,331	143,357	144,999
Cash dividends declared per share	$ 0.14	$ 0.13	$ 0.28	$ 0.26