CONSOLIDATED STATEMENTS OF INCOME (USD $) In Thousands, except Share data, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2012	Sep. 30, 2011	Sep. 30, 2012	Sep. 30, 2011
Net revenues	$ 544,818	$ 543,254	$ 1,618,441	$ 1,563,460
Reimbursable out-of-pocket expenses	52,844	35,622	138,174	90,601
Total revenues	597,662	578,876	1,756,615	1,654,061
Costs and expenses:
Cost of revenue (excluding depreciation and amortization)	389,724	383,347	1,174,382	1,095,199
Reimbursable out-of-pocket expenses	52,844	35,622	138,174	90,601
Selling, general and administrative (excluding depreciation and amortization)	94,401	81,292	266,031	247,292
Depreciation and amortization	30,102	27,592	87,285	79,291
Goodwill impairment charge	0	0	17,959	0
Total costs and expenses	567,071	527,853	1,683,831	1,512,383
Income from operations	30,591	51,023	72,784	141,678
Other (income) expense, net:
Interest income	(636)	(552)	(1,674)	(1,357)
Interest expense	1,556	895	4,027	2,997
Foreign exchange transaction loss, net	281	777	1,301	892
Impairment of equity investment	0	0	7,373	0
Gain on sale of investment	(1,459)	0	(1,459)	0
Loss on sale of business	0	0	169	0
Other (income) expense, net	(258)	1,120	9,737	2,532
Income before taxes and equity investee results	30,849	49,903	63,047	139,146
Taxes on income	(6,971)	9,781	2,229	28,402
Equity investee earnings	0	547	17	305
Net income	$ 37,820	$ 40,669	$ 60,835	$ 111,049
Basic earnings per share	$ 0.70	$ 0.68	$ 1.10	$ 1.86
Weighted average shares outstanding - basic	53,687,748	59,695,336	55,206,190	59,596,294
Diluted earnings per share	$ 0.69	$ 0.67	$ 1.07	$ 1.82
Weighted average shares outstanding - diluted	55,201,552	60,926,604	56,701,280	61,093,960