CONDENSED CONSOLIDATED STATEMENTS OF INCOME (USD $) In Thousands, except Per Share data	3 Months Ended		9 Months Ended
	Sep. 30, 2011	Sep. 30, 2010	Sep. 30, 2011	Sep. 30, 2010
REVENUES
Customer services	$ 323,929	$ 305,118	$ 916,008	$ 856,962
COSTS AND EXPENSES
Cost of services provided	165,097	156,064	465,640	435,467
Depreciation and amortization	9,337	9,076	27,825	27,043
Sales, general and administrative	102,396	98,909	295,651	280,787
Interest expense, net	79	100	449	265
INCOME BEFORE INCOME TAXES	47,020	40,969	126,443	113,400
PROVISION FOR INCOME TAXES	17,605	15,456	47,327	42,604
NET INCOME	$ 29,415	$ 25,513	$ 79,116	$ 70,796
NET INCOME PER SHARE - BASIC (in dollars per share)	$ 0.20	$ 0.17	$ 0.54	$ 0.48
NET INCOME PER SHARE - DILUTED (in dollars per share)	$ 0.20	$ 0.17	$ 0.54	$ 0.48
DIVIDENDS PAID PER SHARE (in dollars per share)	$ 0.07	$ 0.06	$ 0.21	$ 0.18
Weighted average participating shares outstanding - basic (in shares)	146,549	147,582	147,086	148,315
Dilutive effect of stock options (in shares)	60	175	75	228
Weighted average participating shares outstanding - assuming dilution (in shares)	146,609	147,757	147,161	148,543