CONDENSED CONSOLIDATED STATEMENTS OF INCOME (Unaudited) - USD ($) $ in Thousands	3 Months Ended	9 Months Ended
Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017
REVENUES
Customer services	$ 487,739	$ 450,442	$ 1,376,942	$ 1,259,244
COSTS AND EXPENSES
Cost of services provided	236,287	218,781	673,202	612,424
Depreciation and amortization	16,867	14,313	50,149	41,630
Sales, general and administrative	145,072	134,932	414,938	379,753
Gain on sale of assets, net	(314)	(66)	(678)	(179)
Interest income, net	(63)	(79)	70	(342)
INCOME BEFORE INCOME TAXES	89,890	82,561	239,261	225,958
PROVISION FOR INCOME TAXES	23,262	31,131	58,566	80,569
NET INCOME	$ 66,628	$ 51,430	$ 180,695	$ 145,389
NET INCOME PER SHARE - BASIC AND DILUTED (in dollars per share)	$ 0.31	$ 0.24	$ 0.83	$ 0.67
DIVIDENDS PAID PER SHARE (in dollars per share)	$ 0.14	$ 0.12	$ 0.42	$ 0.35
Weighted average participating shares outstanding - basic and diluted (in share)	218,214,000	217,988,000	218,188,000	217,987,000

Aggregate dividends paid during the period for each share of common stock outstanding.

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